UBUNTU-CVE-2026-23069 (CVE-2026-23069)
Vulnerability from osv_ubuntu – Published: 2026-02-04 17:16 – Updated: 2026-10-17 09:38 – Source website
VLAI
Details
In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: fix potential underflow in virtio_transport_get_credit() The credit calculation in virtio_transport_get_credit() uses unsigned arithmetic: ret = vvs->peer_buf_alloc - (vvs->tx_cnt - vvs->peer_fwd_cnt); If the peer shrinks its advertised buffer (peer_buf_alloc) while bytes are in flight, the subtraction can underflow and produce a large positive value, potentially allowing more data to be queued than the peer can handle. Reuse virtio_transport_has_space() which already handles this case and add a comment to make it clear why we are doing that. [Stefano: use virtio_transport_has_space() instead of duplicating the code] [Stefano: tweak the commit message]
Severity
5.5 (Medium)
N/A (UNKNOWN)
References
{
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"5.4.0-1142.149~18.04.1",
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"5.4.0-1145.152~18.04.1",
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"5.4.0-1150.157~18.04.1",
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"5.4.0-1152.159~18.04.1",
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"5.4.0-1154.161~18.04.1",
"5.4.0-1156.163~18.04.1",
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},
{
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{
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{
"binary_name": "linux-tools-5.0.0-1012-azure",
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],
"priority_reason": "Every non-zero-credit caller of virtio_transport_get_credit() is reached from vsock_connectible_sendmsg(), which under lock_sock() first requires vsock_stream_has_space() (the signed, saturating virtio_transport_has_space()) to be non-zero, and peer_buf_alloc/peer_fwd_cnt can only be changed by virtio_transport_space_update() while that same socket lock is held. The attacker therefore cannot create or influence the in-flight \u003e peer_buf_alloc state at the moment of the unsigned subtraction, making this a latent hardening fix that is not reliably triggerable."
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "linux-azure-edge",
"purl": "pkg:deb/ubuntu/linux-azure-edge@5.0.0-1012.12~18.04.2?arch=source\u0026distro=bionic"
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{
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],
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},
{
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{
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{
"binary_name": "linux-gcp-headers-5.0.0-1034",
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{
"binary_name": "linux-gcp-tools-5.0.0-1034",
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{
"binary_name": "linux-headers-5.0.0-1034-gcp",
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{
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{
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{
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],
"priority_reason": "Every non-zero-credit caller of virtio_transport_get_credit() is reached from vsock_connectible_sendmsg(), which under lock_sock() first requires vsock_stream_has_space() (the signed, saturating virtio_transport_has_space()) to be non-zero, and peer_buf_alloc/peer_fwd_cnt can only be changed by virtio_transport_space_update() while that same socket lock is held. The attacker therefore cannot create or influence the in-flight \u003e peer_buf_alloc state at the moment of the unsigned subtraction, making this a latent hardening fix that is not reliably triggerable."
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "linux-gcp",
"purl": "pkg:deb/ubuntu/linux-gcp@5.0.0-1034.35?arch=source\u0026distro=bionic"
},
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{
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},
{
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{
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{
"binary_name": "linux-gcp-4.15-headers-4.15.0-1191",
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{
"binary_name": "linux-gcp-4.15-tools-4.15.0-1191",
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{
"binary_name": "linux-headers-4.15.0-1191-gcp",
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{
"binary_name": "linux-tools-4.15.0-1191-gcp",
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],
"priority_reason": "Every non-zero-credit caller of virtio_transport_get_credit() is reached from vsock_connectible_sendmsg(), which under lock_sock() first requires vsock_stream_has_space() (the signed, saturating virtio_transport_has_space()) to be non-zero, and peer_buf_alloc/peer_fwd_cnt can only be changed by virtio_transport_space_update() while that same socket lock is held. The attacker therefore cannot create or influence the in-flight \u003e peer_buf_alloc state at the moment of the unsigned subtraction, making this a latent hardening fix that is not reliably triggerable."
},
"package": {
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},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "linux-buildinfo-5.3.0-1032-gcp",
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{
"binary_name": "linux-gcp-5.3-headers-5.3.0-1032",
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{
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{
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{
"binary_name": "linux-tools-5.3.0-1032-gcp",
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],
"priority_reason": "Every non-zero-credit caller of virtio_transport_get_credit() is reached from vsock_connectible_sendmsg(), which under lock_sock() first requires vsock_stream_has_space() (the signed, saturating virtio_transport_has_space()) to be non-zero, and peer_buf_alloc/peer_fwd_cnt can only be changed by virtio_transport_space_update() while that same socket lock is held. The attacker therefore cannot create or influence the in-flight \u003e peer_buf_alloc state at the moment of the unsigned subtraction, making this a latent hardening fix that is not reliably triggerable."
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "linux-gcp-5.3",
"purl": "pkg:deb/ubuntu/linux-gcp-5.3@5.3.0-1032.34~18.04.1?arch=source\u0026distro=bionic"
},
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{
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{
"introduced": "0"
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],
"type": "ECOSYSTEM"
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],
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"5.3.0-1008.9~18.04.1",
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]
},
{
"ecosystem_specific": {
"binaries": [
{
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{
"binary_name": "linux-gcp-5.4-headers-5.4.0-1168",
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{
"binary_name": "linux-gcp-5.4-tools-5.4.0-1168",
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{
"binary_name": "linux-headers-5.4.0-1168-gcp",
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},
{
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{
"binary_name": "linux-modules-5.4.0-1168-gcp",
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{
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{
"binary_name": "linux-tools-5.4.0-1168-gcp",
"binary_version": "5.4.0-1168.178~18.04.1"
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],
"priority_reason": "Every non-zero-credit caller of virtio_transport_get_credit() is reached from vsock_connectible_sendmsg(), which under lock_sock() first requires vsock_stream_has_space() (the signed, saturating virtio_transport_has_space()) to be non-zero, and peer_buf_alloc/peer_fwd_cnt can only be changed by virtio_transport_space_update() while that same socket lock is held. The attacker therefore cannot create or influence the in-flight \u003e peer_buf_alloc state at the moment of the unsigned subtraction, making this a latent hardening fix that is not reliably triggerable."
},
"package": {
"ecosystem": "Ubuntu:Pro:18.04:LTS",
"name": "linux-gcp-5.4",
"purl": "pkg:deb/ubuntu/linux-gcp-5.4@5.4.0-1168.178~18.04.1?arch=source\u0026distro=esm-infra/bionic"
},
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},
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},
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{
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},
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},
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"binary_name": "linux-aws-5.15-headers-5.15.0-1117",
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},
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},
"package": {
"ecosystem": "Ubuntu:Pro:20.04:LTS",
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{
"binary_name": "linux-azure-5.11-headers-5.11.0-1028",
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],
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},
"package": {
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{
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},
{
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{
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{
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{
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{
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{
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],
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},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
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},
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{
"binary_name": "linux-azure-5.15-cloud-tools-5.15.0-1123",
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{
"binary_name": "linux-azure-5.15-headers-5.15.0-1123",
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{
"binary_name": "linux-azure-5.15-tools-5.15.0-1123",
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],
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},
"package": {
"ecosystem": "Ubuntu:Pro:20.04:LTS",
"name": "linux-azure-5.15",
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}
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"type": "ECOSYSTEM"
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],
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"5.15.0-1023.29~20.04.1",
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"5.15.0-1031.38~20.04.1",
"5.15.0-1033.40~20.04.1",
"5.15.0-1034.41~20.04.1",
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{
"binary_name": "linux-azure-5.8-headers-5.8.0-1043",
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"package": {
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},
"package": {
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"binary_name": "linux-gcp-5.13-headers-5.13.0-1033",
"binary_version": "5.13.0-1033.40~20.04.1"
},
{
"binary_name": "linux-gcp-5.13-tools-5.13.0-1033",
"binary_version": "5.13.0-1033.40~20.04.1"
},
{
"binary_name": "linux-headers-5.13.0-1033-gcp",
"binary_version": "5.13.0-1033.40~20.04.1"
},
{
"binary_name": "linux-image-unsigned-5.13.0-1033-gcp",
"binary_version": "5.13.0-1033.40~20.04.1"
},
{
"binary_name": "linux-modules-5.13.0-1033-gcp",
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},
{
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},
{
"binary_name": "linux-tools-5.13.0-1033-gcp",
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}
],
"priority_reason": "Every non-zero-credit caller of virtio_transport_get_credit() is reached from vsock_connectible_sendmsg(), which under lock_sock() first requires vsock_stream_has_space() (the signed, saturating virtio_transport_has_space()) to be non-zero, and peer_buf_alloc/peer_fwd_cnt can only be changed by virtio_transport_space_update() while that same socket lock is held. The attacker therefore cannot create or influence the in-flight \u003e peer_buf_alloc state at the moment of the unsigned subtraction, making this a latent hardening fix that is not reliably triggerable."
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "linux-gcp-5.13",
"purl": "pkg:deb/ubuntu/linux-gcp-5.13@5.13.0-1033.40~20.04.1?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"5.13.0-1008.9~20.04.3",
"5.13.0-1012.15~20.04.1",
"5.13.0-1013.16~20.04.1",
"5.13.0-1015.18~20.04.1",
"5.13.0-1019.23~20.04.1",
"5.13.0-1021.25~20.04.1",
"5.13.0-1023.28~20.04.1",
"5.13.0-1024.29~20.04.1",
"5.13.0-1025.30~20.04.1",
"5.13.0-1027.32~20.04.1",
"5.13.0-1030.36~20.04.1",
"5.13.0-1031.37~20.04.1",
"5.13.0-1033.40~20.04.1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
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"binary_version": "5.15.0-1118.128~20.04.1"
},
{
"binary_name": "linux-gcp-5.15-headers-5.15.0-1118",
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},
{
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{
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{
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},
{
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},
{
"binary_name": "linux-tools-5.15.0-1118-gcp",
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],
"priority_reason": "Every non-zero-credit caller of virtio_transport_get_credit() is reached from vsock_connectible_sendmsg(), which under lock_sock() first requires vsock_stream_has_space() (the signed, saturating virtio_transport_has_space()) to be non-zero, and peer_buf_alloc/peer_fwd_cnt can only be changed by virtio_transport_space_update() while that same socket lock is held. The attacker therefore cannot create or influence the in-flight \u003e peer_buf_alloc state at the moment of the unsigned subtraction, making this a latent hardening fix that is not reliably triggerable."
},
"package": {
"ecosystem": "Ubuntu:Pro:20.04:LTS",
"name": "linux-gcp-5.15",
"purl": "pkg:deb/ubuntu/linux-gcp-5.15@5.15.0-1118.128~20.04.1?arch=source\u0026distro=esm-infra/focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"5.15.0-1006.9~20.04.1",
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"5.15.0-1013.18~20.04.1",
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"5.15.0-1017.23~20.04.2",
"5.15.0-1018.24~20.04.1",
"5.15.0-1021.28~20.04.1",
"5.15.0-1022.29~20.04.1",
"5.15.0-1025.32~20.04.2",
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"5.15.0-1027.34~20.04.1",
"5.15.0-1029.36~20.04.1",
"5.15.0-1030.37~20.04.1",
"5.15.0-1031.38~20.04.1",
"5.15.0-1032.40~20.04.1",
"5.15.0-1033.41~20.04.1",
"5.15.0-1034.42~20.04.1",
"5.15.0-1035.43~20.04.1",
"5.15.0-1036.44~20.04.1",
"5.15.0-1037.45~20.04.1",
"5.15.0-1038.46~20.04.1",
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"5.15.0-1041.49~20.04.1",
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"5.15.0-1044.52~20.04.1",
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"5.15.0-1048.56~20.04.1",
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"5.15.0-1052.60~20.04.1",
"5.15.0-1053.61~20.04.1",
"5.15.0-1054.62~20.04.1",
"5.15.0-1055.63~20.04.1",
"5.15.0-1058.66~20.04.1",
"5.15.0-1059.67~20.04.1",
"5.15.0-1060.68~20.04.1",
"5.15.0-1062.70~20.04.1",
"5.15.0-1065.73~20.04.1",
"5.15.0-1066.74~20.04.1",
"5.15.0-1067.75~20.04.1",
"5.15.0-1068.76~20.04.1",
"5.15.0-1069.77~20.04.1",
"5.15.0-1070.78~20.04.1",
"5.15.0-1071.79~20.04.1",
"5.15.0-1072.80~20.04.1",
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"5.15.0-1074.83~20.04.1",
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"5.15.0-1077.86~20.04.1",
"5.15.0-1078.87~20.04.1",
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"5.15.0-1085.94~20.04.1",
"5.15.0-1086.95~20.04.1",
"5.15.0-1087.96~20.04.2",
"5.15.0-1088.97~20.04.1",
"5.15.0-1090.99~20.04.1",
"5.15.0-1091.100~20.04.1",
"5.15.0-1092.101~20.04.1",
"5.15.0-1093.102~20.04.1",
"5.15.0-1095.104~20.04.1",
"5.15.0-1096.105~20.04.1",
"5.15.0-1097.106~20.04.1",
"5.15.0-1098.107~20.04.1",
"5.15.0-1099.108~20.04.1",
"5.15.0-1100.109~20.04.1",
"5.15.0-1101.110~20.04.1",
"5.15.0-1103.112~20.04.1",
"5.15.0-1104.113~20.04.1",
"5.15.0-1106.115~20.04.1",
"5.15.0-1108.117~20.04.1",
"5.15.0-1109.118~20.04.1",
"5.15.0-1111.121~20.04.1",
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]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "linux-buildinfo-5.8.0-1039-gcp",
"binary_version": "5.8.0-1039.41"
},
{
"binary_name": "linux-gcp-5.8-headers-5.8.0-1039",
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{
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},
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},
{
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{
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},
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},
"package": {
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"purl": "pkg:deb/ubuntu/linux-gke-5.15@5.15.0-1039.44~20.04.1?arch=source\u0026distro=focal"
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"5.15.0-1019.23~20.04.1",
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"5.15.0-1037.42~20.04.1",
"5.15.0-1038.43~20.04.1",
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},
{
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{
"binary_name": "linux-cloud-tools-5.4.0-1102-gkeop",
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},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "linux-gkeop",
"purl": "pkg:deb/ubuntu/linux-gkeop@5.4.0-1102.106?arch=source\u0026distro=focal"
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},
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},
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},
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{
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},
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},
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"6.5.0-1017.17~22.04.1",
"6.5.0-1018.19~22.04.2",
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"6.5.0-1022.23~22.04.1",
"6.5.0-1023.24~22.04.1",
"6.5.0-1024.25~22.04.1",
"6.5.0-1025.26~22.04.1"
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"binary_version": "5.19.0-1030.32~22.04.1"
},
{
"binary_name": "linux-gcp-5.19-tools-5.19.0-1030",
"binary_version": "5.19.0-1030.32~22.04.1"
},
{
"binary_name": "linux-headers-5.19.0-1030-gcp",
"binary_version": "5.19.0-1030.32~22.04.1"
},
{
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},
{
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},
{
"binary_name": "linux-tools-5.19.0-1030-gcp",
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],
"priority_reason": "Every non-zero-credit caller of virtio_transport_get_credit() is reached from vsock_connectible_sendmsg(), which under lock_sock() first requires vsock_stream_has_space() (the signed, saturating virtio_transport_has_space()) to be non-zero, and peer_buf_alloc/peer_fwd_cnt can only be changed by virtio_transport_space_update() while that same socket lock is held. The attacker therefore cannot create or influence the in-flight \u003e peer_buf_alloc state at the moment of the unsigned subtraction, making this a latent hardening fix that is not reliably triggerable."
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "linux-gcp-5.19",
"purl": "pkg:deb/ubuntu/linux-gcp-5.19@5.19.0-1030.32~22.04.1?arch=source\u0026distro=jammy"
},
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{
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}
],
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],
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"5.19.0-1020.22~22.04.2",
"5.19.0-1021.23~22.04.1",
"5.19.0-1022.24~22.04.1",
"5.19.0-1024.26~22.04.1",
"5.19.0-1025.27~22.04.1",
"5.19.0-1026.28~22.04.1",
"5.19.0-1027.29~22.04.1",
"5.19.0-1030.32~22.04.1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "linux-buildinfo-6.2.0-1021-gcp",
"binary_version": "6.2.0-1021.23~22.04.1"
},
{
"binary_name": "linux-gcp-6.2-headers-6.2.0-1021",
"binary_version": "6.2.0-1021.23~22.04.1"
},
{
"binary_name": "linux-gcp-6.2-tools-6.2.0-1021",
"binary_version": "6.2.0-1021.23~22.04.1"
},
{
"binary_name": "linux-headers-6.2.0-1021-gcp",
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},
{
"binary_name": "linux-image-unsigned-6.2.0-1021-gcp",
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{
"binary_name": "linux-modules-6.2.0-1021-gcp",
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{
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{
"binary_name": "linux-tools-6.2.0-1021-gcp",
"binary_version": "6.2.0-1021.23~22.04.1"
}
],
"priority_reason": "Every non-zero-credit caller of virtio_transport_get_credit() is reached from vsock_connectible_sendmsg(), which under lock_sock() first requires vsock_stream_has_space() (the signed, saturating virtio_transport_has_space()) to be non-zero, and peer_buf_alloc/peer_fwd_cnt can only be changed by virtio_transport_space_update() while that same socket lock is held. The attacker therefore cannot create or influence the in-flight \u003e peer_buf_alloc state at the moment of the unsigned subtraction, making this a latent hardening fix that is not reliably triggerable."
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "linux-gcp-6.2",
"purl": "pkg:deb/ubuntu/linux-gcp-6.2@6.2.0-1021.23~22.04.1?arch=source\u0026distro=jammy"
},
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{
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{
"introduced": "0"
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],
"type": "ECOSYSTEM"
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],
"versions": [
"6.2.0-1009.9~22.04.3",
"6.2.0-1010.10~22.04.1",
"6.2.0-1011.11~22.04.1",
"6.2.0-1011.11~22.04.3",
"6.2.0-1012.12~22.04.1",
"6.2.0-1013.13~22.04.1",
"6.2.0-1014.14~22.04.1",
"6.2.0-1016.18~22.04.1",
"6.2.0-1017.19~22.04.1",
"6.2.0-1018.20~22.04.1",
"6.2.0-1019.21~22.04.1",
"6.2.0-1021.23~22.04.1"
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},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "linux-buildinfo-6.5.0-1025-gcp",
"binary_version": "6.5.0-1025.27~22.04.1"
},
{
"binary_name": "linux-gcp-6.5-headers-6.5.0-1025",
"binary_version": "6.5.0-1025.27~22.04.1"
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{
"binary_name": "linux-gcp-6.5-tools-6.5.0-1025",
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{
"binary_name": "linux-headers-6.5.0-1025-gcp",
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{
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{
"binary_name": "linux-modules-6.5.0-1025-gcp",
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{
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{
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{
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],
"priority_reason": "Every non-zero-credit caller of virtio_transport_get_credit() is reached from vsock_connectible_sendmsg(), which under lock_sock() first requires vsock_stream_has_space() (the signed, saturating virtio_transport_has_space()) to be non-zero, and peer_buf_alloc/peer_fwd_cnt can only be changed by virtio_transport_space_update() while that same socket lock is held. The attacker therefore cannot create or influence the in-flight \u003e peer_buf_alloc state at the moment of the unsigned subtraction, making this a latent hardening fix that is not reliably triggerable."
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "linux-gcp-6.5",
"purl": "pkg:deb/ubuntu/linux-gcp-6.5@6.5.0-1025.27~22.04.1?arch=source\u0026distro=jammy"
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{
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{
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"6.5.0-1010.10~22.04.3",
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"6.5.0-1014.14~22.04.1",
"6.5.0-1015.15~22.04.1",
"6.5.0-1016.16~22.04.1",
"6.5.0-1017.17~22.04.1",
"6.5.0-1018.18~22.04.1",
"6.5.0-1020.20~22.04.1",
"6.5.0-1022.24~22.04.1",
"6.5.0-1023.25~22.04.1",
"6.5.0-1024.26~22.04.1",
"6.5.0-1025.27~22.04.1"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "linux-buildinfo-6.8.0-1060-gcp",
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},
{
"binary_name": "linux-buildinfo-6.8.0-1060-gcp-64k",
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{
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{
"binary_name": "linux-gcp-6.8-tools-6.8.0-1060",
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{
"binary_name": "linux-headers-6.8.0-1060-gcp",
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{
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{
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{
"binary_name": "linux-modules-6.8.0-1060-gcp",
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{
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{
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"priority_reason": "Every non-zero-credit caller of virtio_transport_get_credit() is reached from vsock_connectible_sendmsg(), which under lock_sock() first requires vsock_stream_has_space() (the signed, saturating virtio_transport_has_space()) to be non-zero, and peer_buf_alloc/peer_fwd_cnt can only be changed by virtio_transport_space_update() while that same socket lock is held. The attacker therefore cannot create or influence the in-flight \u003e peer_buf_alloc state at the moment of the unsigned subtraction, making this a latent hardening fix that is not reliably triggerable."
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
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"purl": "pkg:deb/ubuntu/linux-gcp-6.8@6.8.0-1060.63~22.04.1?arch=source\u0026distro=jammy"
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"6.8.0-1013.14~22.04.1",
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"6.8.0-1028.30~22.04.1",
"6.8.0-1029.31~22.04.1",
"6.8.0-1030.32~22.04.1",
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"6.8.0-1032.34~22.04.1",
"6.8.0-1033.35~22.04.1",
"6.8.0-1034.36~22.04.2",
"6.8.0-1036.38~22.04.1",
"6.8.0-1037.39~22.04.1",
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"6.8.0-1041.43~22.04.1",
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"6.8.0-1043.46~22.04.1",
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"6.8.0-1053.56~22.04.1",
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"5.15.0-1091.97",
"5.15.0-1092.98",
"5.15.0-1093.99",
"5.15.0-1094.100",
"5.15.0-1095.101",
"5.15.0-1096.102",
"5.15.0-1097.103",
"5.15.0-1099.105",
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"5.15.0-1101.107",
"5.15.0-1102.108",
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"5.15.0-1105.111",
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},
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"6.17.0-1013.13~24.04.1",
"6.17.0-1015.15~24.04.1",
"6.17.0-1017.17~24.04.1",
"6.17.0-1018.18~24.04.1",
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},
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},
"package": {
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{
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},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
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},
"package": {
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"binary_name": "linux-tools-6.14.0-1021-gcp-64k",
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],
"priority_reason": "Every non-zero-credit caller of virtio_transport_get_credit() is reached from vsock_connectible_sendmsg(), which under lock_sock() first requires vsock_stream_has_space() (the signed, saturating virtio_transport_has_space()) to be non-zero, and peer_buf_alloc/peer_fwd_cnt can only be changed by virtio_transport_space_update() while that same socket lock is held. The attacker therefore cannot create or influence the in-flight \u003e peer_buf_alloc state at the moment of the unsigned subtraction, making this a latent hardening fix that is not reliably triggerable."
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"package": {
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],
"priority_reason": "Every non-zero-credit caller of virtio_transport_get_credit() is reached from vsock_connectible_sendmsg(), which under lock_sock() first requires vsock_stream_has_space() (the signed, saturating virtio_transport_has_space()) to be non-zero, and peer_buf_alloc/peer_fwd_cnt can only be changed by virtio_transport_space_update() while that same socket lock is held. The attacker therefore cannot create or influence the in-flight \u003e peer_buf_alloc state at the moment of the unsigned subtraction, making this a latent hardening fix that is not reliably triggerable."
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "linux-raspi-realtime",
"purl": "pkg:deb/ubuntu/linux-raspi-realtime@6.8.0-2019.20?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"6.8.0-2019.20"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "linux-buildinfo-6.8.1-1015-realtime",
"binary_version": "6.8.1-1015.16"
},
{
"binary_name": "linux-cloud-tools-6.8.1-1015-realtime",
"binary_version": "6.8.1-1015.16"
},
{
"binary_name": "linux-headers-6.8.1-1015-realtime",
"binary_version": "6.8.1-1015.16"
},
{
"binary_name": "linux-image-unsigned-6.8.1-1015-realtime",
"binary_version": "6.8.1-1015.16"
},
{
"binary_name": "linux-modules-6.8.1-1015-realtime",
"binary_version": "6.8.1-1015.16"
},
{
"binary_name": "linux-modules-extra-6.8.1-1015-realtime",
"binary_version": "6.8.1-1015.16"
},
{
"binary_name": "linux-modules-iwlwifi-6.8.1-1015-realtime",
"binary_version": "6.8.1-1015.16"
},
{
"binary_name": "linux-realtime-cloud-tools-6.8.1-1015",
"binary_version": "6.8.1-1015.16"
},
{
"binary_name": "linux-realtime-headers-6.8.1-1015",
"binary_version": "6.8.1-1015.16"
},
{
"binary_name": "linux-realtime-tools-6.8.1-1015",
"binary_version": "6.8.1-1015.16"
},
{
"binary_name": "linux-tools-6.8.1-1015-realtime",
"binary_version": "6.8.1-1015.16"
}
],
"priority_reason": "Every non-zero-credit caller of virtio_transport_get_credit() is reached from vsock_connectible_sendmsg(), which under lock_sock() first requires vsock_stream_has_space() (the signed, saturating virtio_transport_has_space()) to be non-zero, and peer_buf_alloc/peer_fwd_cnt can only be changed by virtio_transport_space_update() while that same socket lock is held. The attacker therefore cannot create or influence the in-flight \u003e peer_buf_alloc state at the moment of the unsigned subtraction, making this a latent hardening fix that is not reliably triggerable."
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "linux-realtime",
"purl": "pkg:deb/ubuntu/linux-realtime@6.8.1-1015.16?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"6.8.1-1015.16"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "linux-buildinfo-6.8.0-60-generic",
"binary_version": "6.8.0-60.63.1"
},
{
"binary_name": "linux-headers-6.8.0-60-generic",
"binary_version": "6.8.0-60.63.1"
},
{
"binary_name": "linux-image-6.8.0-60-generic",
"binary_version": "6.8.0-60.63.1"
},
{
"binary_name": "linux-modules-6.8.0-60-generic",
"binary_version": "6.8.0-60.63.1"
},
{
"binary_name": "linux-riscv-headers-6.8.0-60",
"binary_version": "6.8.0-60.63.1"
},
{
"binary_name": "linux-riscv-tools-6.8.0-60",
"binary_version": "6.8.0-60.63.1"
},
{
"binary_name": "linux-tools-6.8.0-60-generic",
"binary_version": "6.8.0-60.63.1"
}
],
"priority_reason": "Every non-zero-credit caller of virtio_transport_get_credit() is reached from vsock_connectible_sendmsg(), which under lock_sock() first requires vsock_stream_has_space() (the signed, saturating virtio_transport_has_space()) to be non-zero, and peer_buf_alloc/peer_fwd_cnt can only be changed by virtio_transport_space_update() while that same socket lock is held. The attacker therefore cannot create or influence the in-flight \u003e peer_buf_alloc state at the moment of the unsigned subtraction, making this a latent hardening fix that is not reliably triggerable."
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "linux-riscv",
"purl": "pkg:deb/ubuntu/linux-riscv@6.8.0-60.63.1?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"6.5.0-9.9.1",
"6.8.0-20.20.1",
"6.8.0-28.28.1",
"6.8.0-31.31.1",
"6.8.0-35.35.1",
"6.8.0-36.36.1",
"6.8.0-38.38.1",
"6.8.0-39.39.1",
"6.8.0-40.40.1",
"6.8.0-41.41.1",
"6.8.0-44.44.1",
"6.8.0-47.47.1",
"6.8.0-48.48.1",
"6.8.0-49.49.1",
"6.8.0-50.51.1",
"6.8.0-51.52.1",
"6.8.0-52.53.1",
"6.8.0-53.55.1",
"6.8.0-55.57.1",
"6.8.0-56.58.1",
"6.8.0-57.59.1",
"6.8.0-58.60.1",
"6.8.0-59.61.1",
"6.8.0-60.63.1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "linux-buildinfo-6.14.0-37-generic",
"binary_version": "6.14.0-37.37.1~24.04.1"
},
{
"binary_name": "linux-headers-6.14.0-37-generic",
"binary_version": "6.14.0-37.37.1~24.04.1"
},
{
"binary_name": "linux-image-6.14.0-37-generic",
"binary_version": "6.14.0-37.37.1~24.04.1"
},
{
"binary_name": "linux-modules-6.14.0-37-generic",
"binary_version": "6.14.0-37.37.1~24.04.1"
},
{
"binary_name": "linux-riscv-6.14-headers-6.14.0-37",
"binary_version": "6.14.0-37.37.1~24.04.1"
},
{
"binary_name": "linux-riscv-6.14-tools-6.14.0-37",
"binary_version": "6.14.0-37.37.1~24.04.1"
},
{
"binary_name": "linux-tools-6.14.0-37-generic",
"binary_version": "6.14.0-37.37.1~24.04.1"
}
],
"priority_reason": "Every non-zero-credit caller of virtio_transport_get_credit() is reached from vsock_connectible_sendmsg(), which under lock_sock() first requires vsock_stream_has_space() (the signed, saturating virtio_transport_has_space()) to be non-zero, and peer_buf_alloc/peer_fwd_cnt can only be changed by virtio_transport_space_update() while that same socket lock is held. The attacker therefore cannot create or influence the in-flight \u003e peer_buf_alloc state at the moment of the unsigned subtraction, making this a latent hardening fix that is not reliably triggerable."
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "linux-riscv-6.14",
"purl": "pkg:deb/ubuntu/linux-riscv-6.14@6.14.0-37.37.1~24.04.1?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"6.14.0-22.22.1~24.04.1",
"6.14.0-23.23.1~24.04.1",
"6.14.0-24.24.1~24.04.1",
"6.14.0-27.27.1~24.04.1",
"6.14.0-28.28.1~24.04.1",
"6.14.0-29.29.1~24.04.1",
"6.14.0-32.32.1~24.04.1",
"6.14.0-33.33.1~24.04.1",
"6.14.0-34.34.1~24.04.1",
"6.14.0-35.35.1~24.04.1",
"6.14.0-36.36.1~24.04.1",
"6.14.0-37.37.1~24.04.1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "linux-buildinfo-6.17.0-38-generic",
"binary_version": "6.17.0-38.38.1~24.04.1"
},
{
"binary_name": "linux-headers-6.17.0-38-generic",
"binary_version": "6.17.0-38.38.1~24.04.1"
},
{
"binary_name": "linux-image-6.17.0-38-generic",
"binary_version": "6.17.0-38.38.1~24.04.1"
},
{
"binary_name": "linux-modules-6.17.0-38-generic",
"binary_version": "6.17.0-38.38.1~24.04.1"
},
{
"binary_name": "linux-riscv-6.17-headers-6.17.0-38",
"binary_version": "6.17.0-38.38.1~24.04.1"
},
{
"binary_name": "linux-riscv-6.17-tools-6.17.0-38",
"binary_version": "6.17.0-38.38.1~24.04.1"
},
{
"binary_name": "linux-tools-6.17.0-38-generic",
"binary_version": "6.17.0-38.38.1~24.04.1"
}
],
"priority_reason": "Every non-zero-credit caller of virtio_transport_get_credit() is reached from vsock_connectible_sendmsg(), which under lock_sock() first requires vsock_stream_has_space() (the signed, saturating virtio_transport_has_space()) to be non-zero, and peer_buf_alloc/peer_fwd_cnt can only be changed by virtio_transport_space_update() while that same socket lock is held. The attacker therefore cannot create or influence the in-flight \u003e peer_buf_alloc state at the moment of the unsigned subtraction, making this a latent hardening fix that is not reliably triggerable."
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "linux-riscv-6.17",
"purl": "pkg:deb/ubuntu/linux-riscv-6.17@6.17.0-38.38.1~24.04.1?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"6.17.0-14.14.1~24.04.1",
"6.17.0-19.19.1~24.04.1",
"6.17.0-20.20.1~24.04.1",
"6.17.0-22.22.1~24.04.1",
"6.17.0-23.23.1~24.04.1",
"6.17.0-29.29.1~24.04.1",
"6.17.0-35.35.1~24.04.1",
"6.17.0-38.38.1~24.04.1"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "linux-buildinfo-6.8.0-1032-xilinx",
"binary_version": "6.8.0-1032.33"
},
{
"binary_name": "linux-headers-6.8.0-1032-xilinx",
"binary_version": "6.8.0-1032.33"
},
{
"binary_name": "linux-image-6.8.0-1032-xilinx",
"binary_version": "6.8.0-1032.33"
},
{
"binary_name": "linux-modules-6.8.0-1032-xilinx",
"binary_version": "6.8.0-1032.33"
},
{
"binary_name": "linux-tools-6.8.0-1032-xilinx",
"binary_version": "6.8.0-1032.33"
},
{
"binary_name": "linux-xilinx-headers-6.8.0-1032",
"binary_version": "6.8.0-1032.33"
},
{
"binary_name": "linux-xilinx-tools-6.8.0-1032",
"binary_version": "6.8.0-1032.33"
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],
"priority_reason": "Every non-zero-credit caller of virtio_transport_get_credit() is reached from vsock_connectible_sendmsg(), which under lock_sock() first requires vsock_stream_has_space() (the signed, saturating virtio_transport_has_space()) to be non-zero, and peer_buf_alloc/peer_fwd_cnt can only be changed by virtio_transport_space_update() while that same socket lock is held. The attacker therefore cannot create or influence the in-flight \u003e peer_buf_alloc state at the moment of the unsigned subtraction, making this a latent hardening fix that is not reliably triggerable."
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "linux-xilinx",
"purl": "pkg:deb/ubuntu/linux-xilinx@6.8.0-1032.33?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "6.8.0-1032.33"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"6.8.0-1008.9",
"6.8.0-1009.10",
"6.8.0-1011.12",
"6.8.0-1012.13",
"6.8.0-1013.14",
"6.8.0-1014.15",
"6.8.0-1015.16",
"6.8.0-1017.18",
"6.8.0-1018.19",
"6.8.0-1019.20",
"6.8.0-1020.21",
"6.8.0-1021.22",
"6.8.0-1022.23",
"6.8.0-1023.24",
"6.8.0-1024.25",
"6.8.0-1028.29",
"6.8.0-1029.30"
]
},
{
"ecosystem_specific": {
"availability": "Available for NVIDIA BlueField platforms",
"binaries": [
{
"binary_name": "linux-bluefield-headers-6.8.0-1022",
"binary_version": "6.8.0-1022.26"
},
{
"binary_name": "linux-bluefield-tools-6.8.0-1022",
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{
"binary_name": "linux-buildinfo-6.8.0-1022-bluefield",
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{
"binary_name": "linux-buildinfo-6.8.0-1022-bluefield-64k",
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{
"binary_name": "linux-headers-6.8.0-1022-bluefield",
"binary_version": "6.8.0-1022.26"
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{
"binary_name": "linux-headers-6.8.0-1022-bluefield-64k",
"binary_version": "6.8.0-1022.26"
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{
"binary_name": "linux-image-unsigned-6.8.0-1022-bluefield",
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{
"binary_name": "linux-image-unsigned-6.8.0-1022-bluefield-64k",
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{
"binary_name": "linux-modules-6.8.0-1022-bluefield",
"binary_version": "6.8.0-1022.26"
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{
"binary_name": "linux-modules-6.8.0-1022-bluefield-64k",
"binary_version": "6.8.0-1022.26"
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{
"binary_name": "linux-modules-extra-6.8.0-1022-bluefield",
"binary_version": "6.8.0-1022.26"
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{
"binary_name": "linux-modules-extra-6.8.0-1022-bluefield-64k",
"binary_version": "6.8.0-1022.26"
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{
"binary_name": "linux-tools-6.8.0-1022-bluefield",
"binary_version": "6.8.0-1022.26"
},
{
"binary_name": "linux-tools-6.8.0-1022-bluefield-64k",
"binary_version": "6.8.0-1022.26"
}
],
"priority_reason": "Every non-zero-credit caller of virtio_transport_get_credit() is reached from vsock_connectible_sendmsg(), which under lock_sock() first requires vsock_stream_has_space() (the signed, saturating virtio_transport_has_space()) to be non-zero, and peer_buf_alloc/peer_fwd_cnt can only be changed by virtio_transport_space_update() while that same socket lock is held. The attacker therefore cannot create or influence the in-flight \u003e peer_buf_alloc state at the moment of the unsigned subtraction, making this a latent hardening fix that is not reliably triggerable."
},
"package": {
"ecosystem": "Ubuntu:Nvidia-BlueField:24.04:LTS",
"name": "linux-bluefield",
"purl": "pkg:deb/ubuntu/linux-bluefield@6.8.0-1022.26?arch=source\u0026distro=bluefield/noble"
},
"ranges": [
{
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{
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},
{
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],
"versions": [
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"6.8.0-1012.16",
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"6.8.0-1014.18",
"6.8.0-1016.20",
"6.8.0-1017.21"
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},
{
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "linux-buildinfo-6.8.0-2045-raspi-realtime",
"binary_version": "6.8.0-2045.46"
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{
"binary_name": "linux-headers-6.8.0-2045-raspi-realtime",
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{
"binary_name": "linux-image-6.8.0-2045-raspi-realtime",
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{
"binary_name": "linux-modules-6.8.0-2045-raspi-realtime",
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{
"binary_name": "linux-raspi-realtime-headers-6.8.0-2045",
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{
"binary_name": "linux-raspi-realtime-tools-6.8.0-2045",
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{
"binary_name": "linux-tools-6.8.0-2045-raspi-realtime",
"binary_version": "6.8.0-2045.46"
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],
"priority_reason": "Every non-zero-credit caller of virtio_transport_get_credit() is reached from vsock_connectible_sendmsg(), which under lock_sock() first requires vsock_stream_has_space() (the signed, saturating virtio_transport_has_space()) to be non-zero, and peer_buf_alloc/peer_fwd_cnt can only be changed by virtio_transport_space_update() while that same socket lock is held. The attacker therefore cannot create or influence the in-flight \u003e peer_buf_alloc state at the moment of the unsigned subtraction, making this a latent hardening fix that is not reliably triggerable."
},
"package": {
"ecosystem": "Ubuntu:Pro:Realtime:24.04:LTS",
"name": "linux-raspi-realtime",
"purl": "pkg:deb/ubuntu/linux-raspi-realtime@6.8.0-2045.46?arch=source\u0026distro=realtime/noble"
},
"ranges": [
{
"events": [
{
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{
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],
"type": "ECOSYSTEM"
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"versions": [
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"6.8.0-2004.4",
"6.8.0-2005.5",
"6.8.0-2006.6",
"6.8.0-2007.7",
"6.8.0-2008.8",
"6.8.0-2009.9",
"6.8.0-2010.10",
"6.8.0-2011.11",
"6.8.0-2012.12",
"6.8.0-2013.14",
"6.8.0-2014.15",
"6.8.0-2015.16",
"6.8.0-2016.17",
"6.8.0-2017.18",
"6.8.0-2018.19",
"6.8.0-2019.20",
"6.8.0-2022.23",
"6.8.0-2023.24",
"6.8.0-2024.25",
"6.8.0-2025.26",
"6.8.0-2026.27",
"6.8.0-2028.29",
"6.8.0-2029.30",
"6.8.0-2030.31",
"6.8.0-2031.32",
"6.8.0-2032.33",
"6.8.0-2033.34",
"6.8.0-2034.35",
"6.8.0-2035.36",
"6.8.0-2036.37",
"6.8.0-2037.38",
"6.8.0-2038.39",
"6.8.0-2040.41",
"6.8.0-2041.42",
"6.8.0-2042.43",
"6.8.0-2043.44"
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},
{
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "linux-buildinfo-6.8.1-1051-realtime",
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{
"binary_name": "linux-cloud-tools-6.8.1-1051-realtime",
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{
"binary_name": "linux-headers-6.8.1-1051-realtime",
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{
"binary_name": "linux-image-unsigned-6.8.1-1051-realtime",
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{
"binary_name": "linux-modules-6.8.1-1051-realtime",
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{
"binary_name": "linux-modules-extra-6.8.1-1051-realtime",
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{
"binary_name": "linux-modules-iwlwifi-6.8.1-1051-realtime",
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{
"binary_name": "linux-realtime-cloud-tools-6.8.1-1051",
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{
"binary_name": "linux-realtime-headers-6.8.1-1051",
"binary_version": "6.8.1-1051.52"
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{
"binary_name": "linux-realtime-tools-6.8.1-1051",
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{
"binary_name": "linux-tools-6.8.1-1051-realtime",
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"priority_reason": "Every non-zero-credit caller of virtio_transport_get_credit() is reached from vsock_connectible_sendmsg(), which under lock_sock() first requires vsock_stream_has_space() (the signed, saturating virtio_transport_has_space()) to be non-zero, and peer_buf_alloc/peer_fwd_cnt can only be changed by virtio_transport_space_update() while that same socket lock is held. The attacker therefore cannot create or influence the in-flight \u003e peer_buf_alloc state at the moment of the unsigned subtraction, making this a latent hardening fix that is not reliably triggerable."
},
"package": {
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{
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"6.8.1-1042.43",
"6.8.1-1045.46",
"6.8.1-1046.47",
"6.8.1-1047.48",
"6.8.1-1048.49"
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},
{
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{
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{
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},
"package": {
"ecosystem": "Ubuntu:Pro:Realtime:24.04:LTS",
"name": "linux-realtime-6.14",
"purl": "pkg:deb/ubuntu/linux-realtime-6.14@6.14.0-1017.17~24.04.1?arch=source\u0026distro=realtime/noble"
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{
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],
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"6.14.0-1013.13~24.04.1",
"6.14.0-1014.14~24.04.1",
"6.14.0-1015.15~24.04.1",
"6.14.0-1016.16~24.04.1",
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},
{
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{
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{
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},
"package": {
"ecosystem": "Ubuntu:Pro:Realtime:24.04:LTS",
"name": "linux-realtime-6.17",
"purl": "pkg:deb/ubuntu/linux-realtime-6.17@6.17.0-1018.20~24.04.1?arch=source\u0026distro=realtime/noble"
},
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{
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{
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{
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],
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],
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"6.17.0-1014.16~24.04.1",
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},
{
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{
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{
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{
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},
{
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},
{
"binary_name": "linux-headers-6.8.0-1055-aws-fips",
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{
"binary_name": "linux-image-unsigned-6.8.0-1055-aws-fips",
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},
{
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{
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{
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],
"priority_reason": "Every non-zero-credit caller of virtio_transport_get_credit() is reached from vsock_connectible_sendmsg(), which under lock_sock() first requires vsock_stream_has_space() (the signed, saturating virtio_transport_has_space()) to be non-zero, and peer_buf_alloc/peer_fwd_cnt can only be changed by virtio_transport_space_update() while that same socket lock is held. The attacker therefore cannot create or influence the in-flight \u003e peer_buf_alloc state at the moment of the unsigned subtraction, making this a latent hardening fix that is not reliably triggerable."
},
"package": {
"ecosystem": "Ubuntu:Pro:FIPS-updates:24.04:LTS",
"name": "linux-aws-fips",
"purl": "pkg:deb/ubuntu/linux-aws-fips@6.8.0-1055.58+fips1?arch=source\u0026distro=fips-updates/noble"
},
"ranges": [
{
"events": [
{
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{
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],
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],
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"6.8.0-1051.54+fips1",
"6.8.0-1052.55+fips1",
"6.8.0-1053.56+fips1"
]
},
{
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"binaries": [
{
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{
"binary_name": "linux-azure-fips-headers-6.8.0-1059",
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{
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{
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{
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"binary_name": "linux-tools-6.8.0-1059-azure-fips",
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],
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},
"package": {
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},
{
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{
"binary_name": "linux-cloud-tools-6.8.0-116-fips",
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{
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{
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{
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{
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],
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},
"package": {
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],
"priority_reason": "Every non-zero-credit caller of virtio_transport_get_credit() is reached from vsock_connectible_sendmsg(), which under lock_sock() first requires vsock_stream_has_space() (the signed, saturating virtio_transport_has_space()) to be non-zero, and peer_buf_alloc/peer_fwd_cnt can only be changed by virtio_transport_space_update() while that same socket lock is held. The attacker therefore cannot create or influence the in-flight \u003e peer_buf_alloc state at the moment of the unsigned subtraction, making this a latent hardening fix that is not reliably triggerable."
},
"package": {
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}
],
"priority_reason": "Every non-zero-credit caller of virtio_transport_get_credit() is reached from vsock_connectible_sendmsg(), which under lock_sock() first requires vsock_stream_has_space() (the signed, saturating virtio_transport_has_space()) to be non-zero, and peer_buf_alloc/peer_fwd_cnt can only be changed by virtio_transport_space_update() while that same socket lock is held. The attacker therefore cannot create or influence the in-flight \u003e peer_buf_alloc state at the moment of the unsigned subtraction, making this a latent hardening fix that is not reliably triggerable."
},
"package": {
"ecosystem": "Ubuntu:25.10",
"name": "linux-raspi",
"purl": "pkg:deb/ubuntu/linux-raspi@6.17.0-1021.21?arch=source\u0026distro=questing"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"6.14.0-1005.5",
"6.17.0-1003.3",
"6.17.0-1004.4",
"6.17.0-1005.5",
"6.17.0-1006.6",
"6.17.0-1007.7",
"6.17.0-1008.8",
"6.17.0-1010.10",
"6.17.0-1011.11",
"6.17.0-1013.13",
"6.17.0-1014.14",
"6.17.0-1017.17",
"6.17.0-1018.18",
"6.17.0-1021.21"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "linux-buildinfo-6.17.0-1017-realtime",
"binary_version": "6.17.0-1017.19"
},
{
"binary_name": "linux-cloud-tools-6.17.0-1017-realtime",
"binary_version": "6.17.0-1017.19"
},
{
"binary_name": "linux-headers-6.17.0-1017-realtime",
"binary_version": "6.17.0-1017.19"
},
{
"binary_name": "linux-image-unsigned-6.17.0-1017-realtime",
"binary_version": "6.17.0-1017.19"
},
{
"binary_name": "linux-modules-6.17.0-1017-realtime",
"binary_version": "6.17.0-1017.19"
},
{
"binary_name": "linux-modules-iwlwifi-6.17.0-1017-realtime",
"binary_version": "6.17.0-1017.19"
},
{
"binary_name": "linux-realtime-cloud-tools-6.17.0-1017",
"binary_version": "6.17.0-1017.19"
},
{
"binary_name": "linux-realtime-headers-6.17.0-1017",
"binary_version": "6.17.0-1017.19"
},
{
"binary_name": "linux-realtime-tools-6.17.0-1017",
"binary_version": "6.17.0-1017.19"
},
{
"binary_name": "linux-tools-6.17.0-1017-realtime",
"binary_version": "6.17.0-1017.19"
}
],
"priority_reason": "Every non-zero-credit caller of virtio_transport_get_credit() is reached from vsock_connectible_sendmsg(), which under lock_sock() first requires vsock_stream_has_space() (the signed, saturating virtio_transport_has_space()) to be non-zero, and peer_buf_alloc/peer_fwd_cnt can only be changed by virtio_transport_space_update() while that same socket lock is held. The attacker therefore cannot create or influence the in-flight \u003e peer_buf_alloc state at the moment of the unsigned subtraction, making this a latent hardening fix that is not reliably triggerable."
},
"package": {
"ecosystem": "Ubuntu:25.10",
"name": "linux-realtime",
"purl": "pkg:deb/ubuntu/linux-realtime@6.17.0-1017.19?arch=source\u0026distro=questing"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"6.14.0-1002.2",
"6.17.0-1001.2",
"6.17.0-1002.3",
"6.17.0-1003.4",
"6.17.0-1004.5",
"6.17.0-1005.6",
"6.17.0-1006.7",
"6.17.0-1008.9",
"6.17.0-1009.10",
"6.17.0-1010.11",
"6.17.0-1011.12",
"6.17.0-1013.15",
"6.17.0-1014.16",
"6.17.0-1017.19"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "linux-buildinfo-6.17.0-40-generic",
"binary_version": "6.17.0-40.40.1"
},
{
"binary_name": "linux-headers-6.17.0-40-generic",
"binary_version": "6.17.0-40.40.1"
},
{
"binary_name": "linux-image-6.17.0-40-generic",
"binary_version": "6.17.0-40.40.1"
},
{
"binary_name": "linux-modules-6.17.0-40-generic",
"binary_version": "6.17.0-40.40.1"
},
{
"binary_name": "linux-riscv-headers-6.17.0-40",
"binary_version": "6.17.0-40.40.1"
},
{
"binary_name": "linux-riscv-tools-6.17.0-40",
"binary_version": "6.17.0-40.40.1"
},
{
"binary_name": "linux-tools-6.17.0-40-generic",
"binary_version": "6.17.0-40.40.1"
}
],
"priority_reason": "Every non-zero-credit caller of virtio_transport_get_credit() is reached from vsock_connectible_sendmsg(), which under lock_sock() first requires vsock_stream_has_space() (the signed, saturating virtio_transport_has_space()) to be non-zero, and peer_buf_alloc/peer_fwd_cnt can only be changed by virtio_transport_space_update() while that same socket lock is held. The attacker therefore cannot create or influence the in-flight \u003e peer_buf_alloc state at the moment of the unsigned subtraction, making this a latent hardening fix that is not reliably triggerable."
},
"package": {
"ecosystem": "Ubuntu:25.10",
"name": "linux-riscv",
"purl": "pkg:deb/ubuntu/linux-riscv@6.17.0-40.40.1?arch=source\u0026distro=questing"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"6.14.0-13.13.2",
"6.17.0-4.4.1",
"6.17.0-5.5.1",
"6.17.0-6.6.1",
"6.17.0-7.7.1",
"6.17.0-8.8.1",
"6.17.0-12.12.1",
"6.17.0-14.14.1",
"6.17.0-19.19.1",
"6.17.0-20.20.1",
"6.17.0-22.22.1",
"6.17.0-23.23.1",
"6.17.0-29.29.1",
"6.17.0-35.35.1",
"6.17.0-40.40.1"
]
}
],
"aliases": [],
"details": "In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: fix potential underflow in virtio_transport_get_credit() The credit calculation in virtio_transport_get_credit() uses unsigned arithmetic: ret = vvs-\u003epeer_buf_alloc - (vvs-\u003etx_cnt - vvs-\u003epeer_fwd_cnt); If the peer shrinks its advertised buffer (peer_buf_alloc) while bytes are in flight, the subtraction can underflow and produce a large positive value, potentially allowing more data to be queued than the peer can handle. Reuse virtio_transport_has_space() which already handles this case and add a comment to make it clear why we are doing that. [Stefano: use virtio_transport_has_space() instead of duplicating the code] [Stefano: tweak the commit message]",
"id": "UBUNTU-CVE-2026-23069",
"modified": "2026-10-17T09:38:22Z",
"published": "2026-02-04T17:16:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-23069"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23069"
},
{
"type": "REPORT",
"url": "https://git.kernel.org/linus/3ef3d52a1a9860d094395c7a3e593f3aa26ff012"
},
{
"type": "REPORT",
"url": "https://git.kernel.org/stable/c/02f9af192b98d15883c70dd41ac76d1b0217c899"
},
{
"type": "REPORT",
"url": "https://git.kernel.org/stable/c/3ef3d52a1a9860d094395c7a3e593f3aa26ff012"
},
{
"type": "REPORT",
"url": "https://git.kernel.org/stable/c/d05bc313788f0684b27f0f5b60c52a844669b542"
},
{
"type": "REPORT",
"url": "https://git.kernel.org/stable/c/ec0f1b3da8061be3173d1c39faaf9504f91942c3"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-8278-1"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-8289-1"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-8296-1"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-8296-2"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-8289-2"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-8278-2"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-8393-1"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-8440-1"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-8499-1"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-8570-1"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-8594-1"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-8604-1"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-8605-1"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-8570-2"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-8669-1"
}
],
"related": [
"USN-8278-1",
"USN-8289-1",
"USN-8296-1",
"USN-8296-2",
"USN-8289-2",
"USN-8278-2",
"USN-8393-1",
"USN-8440-1",
"USN-8499-1",
"USN-8570-1",
"USN-8594-1",
"USN-8604-1",
"USN-8605-1",
"USN-8570-2",
"USN-8669-1"
],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2026-23069"
]
}
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.