CVE-2025-39913 (GCVE-0-2025-39913)
Vulnerability from cvelistv5 – Published: 2025-10-01 07:44 – Updated: 2026-06-11 18:44
VLAI
EPSS
VEX
Title
tcp_bpf: Call sk_msg_free() when tcp_bpf_send_verdict() fails to allocate psock->cork.
Summary
In the Linux kernel, the following vulnerability has been resolved:
tcp_bpf: Call sk_msg_free() when tcp_bpf_send_verdict() fails to allocate psock->cork.
syzbot reported the splat below. [0]
The repro does the following:
1. Load a sk_msg prog that calls bpf_msg_cork_bytes(msg, cork_bytes)
2. Attach the prog to a SOCKMAP
3. Add a socket to the SOCKMAP
4. Activate fault injection
5. Send data less than cork_bytes
At 5., the data is carried over to the next sendmsg() as it is
smaller than the cork_bytes specified by bpf_msg_cork_bytes().
Then, tcp_bpf_send_verdict() tries to allocate psock->cork to hold
the data, but this fails silently due to fault injection + __GFP_NOWARN.
If the allocation fails, we need to revert the sk->sk_forward_alloc
change done by sk_msg_alloc().
Let's call sk_msg_free() when tcp_bpf_send_verdict fails to allocate
psock->cork.
The "*copied" also needs to be updated such that a proper error can
be returned to the caller, sendmsg. It fails to allocate psock->cork.
Nothing has been corked so far, so this patch simply sets "*copied"
to 0.
[0]:
WARNING: net/ipv4/af_inet.c:156 at inet_sock_destruct+0x623/0x730 net/ipv4/af_inet.c:156, CPU#1: syz-executor/5983
Modules linked in:
CPU: 1 UID: 0 PID: 5983 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:inet_sock_destruct+0x623/0x730 net/ipv4/af_inet.c:156
Code: 0f 0b 90 e9 62 fe ff ff e8 7a db b5 f7 90 0f 0b 90 e9 95 fe ff ff e8 6c db b5 f7 90 0f 0b 90 e9 bb fe ff ff e8 5e db b5 f7 90 <0f> 0b 90 e9 e1 fe ff ff 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 9f fc
RSP: 0018:ffffc90000a08b48 EFLAGS: 00010246
RAX: ffffffff8a09d0b2 RBX: dffffc0000000000 RCX: ffff888024a23c80
RDX: 0000000000000100 RSI: 0000000000000fff RDI: 0000000000000000
RBP: 0000000000000fff R08: ffff88807e07c627 R09: 1ffff1100fc0f8c4
R10: dffffc0000000000 R11: ffffed100fc0f8c5 R12: ffff88807e07c380
R13: dffffc0000000000 R14: ffff88807e07c60c R15: 1ffff1100fc0f872
FS: 00005555604c4500(0000) GS:ffff888125af1000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555604df5c8 CR3: 0000000032b06000 CR4: 00000000003526f0
Call Trace:
<IRQ>
__sk_destruct+0x86/0x660 net/core/sock.c:2339
rcu_do_batch kernel/rcu/tree.c:2605 [inline]
rcu_core+0xca8/0x1770 kernel/rcu/tree.c:2861
handle_softirqs+0x286/0x870 kernel/softirq.c:579
__do_softirq kernel/softirq.c:613 [inline]
invoke_softirq kernel/softirq.c:453 [inline]
__irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680
irq_exit_rcu+0x9/0x30 kernel/softirq.c:696
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1052 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1052
</IRQ>
Severity
No CVSS data available.
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-10 20:41 UTC
Assigner
References
10 references
Impacted products
3 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
4f738adba30a7cfc006f605707e7aee847ffefa0 , < 08f58d10f5abf11d297cc910754922498c921f91
(git)
Affected: 4f738adba30a7cfc006f605707e7aee847ffefa0 , < 05366527f44cf4b884f3d9462ae8009be9665856 (git) Affected: 4f738adba30a7cfc006f605707e7aee847ffefa0 , < 7429b8b9bfbc276fd304fbaebc405f46b421fedf (git) Affected: 4f738adba30a7cfc006f605707e7aee847ffefa0 , < 9c2a6456bdf9794474460d885c359b6c4522d6e3 (git) Affected: 4f738adba30a7cfc006f605707e7aee847ffefa0 , < 66bcb04a441fbf15d66834b7e3eefb313dd750c8 (git) Affected: 4f738adba30a7cfc006f605707e7aee847ffefa0 , < 539920180c55f5e13a2488a2339f94e6b8cb69e0 (git) Affected: 4f738adba30a7cfc006f605707e7aee847ffefa0 , < de89e58368f8f07df005ecc1c86ad94898a999f2 (git) Affected: 4f738adba30a7cfc006f605707e7aee847ffefa0 , < a3967baad4d533dc254c31e0d221e51c8d223d58 (git) |
guessed | |
| Linux | Linux |
Affected:
4.17
Unaffected: 0 , < 4.17 (semver) Unaffected: 5.4.300 , ≤ 5.4.* (semver) Unaffected: 5.10.245 , ≤ 5.10.* (semver) Unaffected: 5.15.194 , ≤ 5.15.* (semver) Unaffected: 6.1.153 , ≤ 6.1.* (semver) Unaffected: 6.6.107 , ≤ 6.6.* (semver) Unaffected: 6.12.48 , ≤ 6.12.* (semver) Unaffected: 6.16.8 , ≤ 6.16.* (semver) Unaffected: 6.17 , ≤ * (original_commit_for_fix) |
guessed | |
| Siemens | RUGGEDCOM RST2428P |
Affected:
0 , < V4.0
(custom)
|
guessed |
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"cpeApplicability": [
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"nodes": [
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"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntcp_bpf: Call sk_msg_free() when tcp_bpf_send_verdict() fails to allocate psock-\u003ecork.\n\nsyzbot reported the splat below. [0]\n\nThe repro does the following:\n\n 1. Load a sk_msg prog that calls bpf_msg_cork_bytes(msg, cork_bytes)\n 2. Attach the prog to a SOCKMAP\n 3. Add a socket to the SOCKMAP\n 4. Activate fault injection\n 5. Send data less than cork_bytes\n\nAt 5., the data is carried over to the next sendmsg() as it is\nsmaller than the cork_bytes specified by bpf_msg_cork_bytes().\n\nThen, tcp_bpf_send_verdict() tries to allocate psock-\u003ecork to hold\nthe data, but this fails silently due to fault injection + __GFP_NOWARN.\n\nIf the allocation fails, we need to revert the sk-\u003esk_forward_alloc\nchange done by sk_msg_alloc().\n\nLet\u0027s call sk_msg_free() when tcp_bpf_send_verdict fails to allocate\npsock-\u003ecork.\n\nThe \"*copied\" also needs to be updated such that a proper error can\nbe returned to the caller, sendmsg. It fails to allocate psock-\u003ecork.\nNothing has been corked so far, so this patch simply sets \"*copied\"\nto 0.\n\n[0]:\nWARNING: net/ipv4/af_inet.c:156 at inet_sock_destruct+0x623/0x730 net/ipv4/af_inet.c:156, CPU#1: syz-executor/5983\nModules linked in:\nCPU: 1 UID: 0 PID: 5983 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025\nRIP: 0010:inet_sock_destruct+0x623/0x730 net/ipv4/af_inet.c:156\nCode: 0f 0b 90 e9 62 fe ff ff e8 7a db b5 f7 90 0f 0b 90 e9 95 fe ff ff e8 6c db b5 f7 90 0f 0b 90 e9 bb fe ff ff e8 5e db b5 f7 90 \u003c0f\u003e 0b 90 e9 e1 fe ff ff 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 9f fc\nRSP: 0018:ffffc90000a08b48 EFLAGS: 00010246\nRAX: ffffffff8a09d0b2 RBX: dffffc0000000000 RCX: ffff888024a23c80\nRDX: 0000000000000100 RSI: 0000000000000fff RDI: 0000000000000000\nRBP: 0000000000000fff R08: ffff88807e07c627 R09: 1ffff1100fc0f8c4\nR10: dffffc0000000000 R11: ffffed100fc0f8c5 R12: ffff88807e07c380\nR13: dffffc0000000000 R14: ffff88807e07c60c R15: 1ffff1100fc0f872\nFS: 00005555604c4500(0000) GS:ffff888125af1000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00005555604df5c8 CR3: 0000000032b06000 CR4: 00000000003526f0\nCall Trace:\n \u003cIRQ\u003e\n __sk_destruct+0x86/0x660 net/core/sock.c:2339\n rcu_do_batch kernel/rcu/tree.c:2605 [inline]\n rcu_core+0xca8/0x1770 kernel/rcu/tree.c:2861\n handle_softirqs+0x286/0x870 kernel/softirq.c:579\n __do_softirq kernel/softirq.c:613 [inline]\n invoke_softirq kernel/softirq.c:453 [inline]\n __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680\n irq_exit_rcu+0x9/0x30 kernel/softirq.c:696\n instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1052 [inline]\n sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1052\n \u003c/IRQ\u003e"
}
],
"providerMetadata": {
"dateUpdated": "2026-05-11T21:38:49.832Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
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"references": [
{
"url": "https://git.kernel.org/stable/c/08f58d10f5abf11d297cc910754922498c921f91"
},
{
"url": "https://git.kernel.org/stable/c/05366527f44cf4b884f3d9462ae8009be9665856"
},
{
"url": "https://git.kernel.org/stable/c/7429b8b9bfbc276fd304fbaebc405f46b421fedf"
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{
"url": "https://git.kernel.org/stable/c/9c2a6456bdf9794474460d885c359b6c4522d6e3"
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{
"url": "https://git.kernel.org/stable/c/539920180c55f5e13a2488a2339f94e6b8cb69e0"
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},
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}
],
"title": "tcp_bpf: Call sk_msg_free() when tcp_bpf_send_verdict() fails to allocate psock-\u003ecork.",
"x_generator": {
"engine": "bippy-1.2.0"
}
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"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-39913",
"datePublished": "2025-10-01T07:44:36.244Z",
"dateReserved": "2025-04-16T07:20:57.147Z",
"dateUpdated": "2026-06-11T18:44:08.579Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2025-39913",
"date": "2026-09-14",
"epss": "0.00183",
"percentile": "0.08035"
},
"microsoft_vex": {
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"cve": "CVE-2025-39913",
"id": "msrc_CVE-2025-39913",
"initial_release_date": "2025-10-02T00:00:00.000Z",
"product_status:fixed": "2",
"product_status:known_affected": "3",
"source": "Microsoft CSAF VEX",
"status": "final",
"title": "tcp_bpf: Call sk_msg_free() when tcp_bpf_send_verdict() fails to allocate psock-\u003ecork.",
"url": "https://msrc.microsoft.com/csaf/vex/2025/msrc_cve-2025-39913.json",
"version": "4"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2025-39913\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-10-01T08:15:34.390\",\"lastModified\":\"2026-06-17T09:18:48.907\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ntcp_bpf: Call sk_msg_free() when tcp_bpf_send_verdict() fails to allocate psock-\u003ecork.\\n\\nsyzbot reported the splat below. [0]\\n\\nThe repro does the following:\\n\\n 1. Load a sk_msg prog that calls bpf_msg_cork_bytes(msg, cork_bytes)\\n 2. Attach the prog to a SOCKMAP\\n 3. Add a socket to the SOCKMAP\\n 4. Activate fault injection\\n 5. Send data less than cork_bytes\\n\\nAt 5., the data is carried over to the next sendmsg() as it is\\nsmaller than the cork_bytes specified by bpf_msg_cork_bytes().\\n\\nThen, tcp_bpf_send_verdict() tries to allocate psock-\u003ecork to hold\\nthe data, but this fails silently due to fault injection + __GFP_NOWARN.\\n\\nIf the allocation fails, we need to revert the sk-\u003esk_forward_alloc\\nchange done by sk_msg_alloc().\\n\\nLet\u0027s call sk_msg_free() when tcp_bpf_send_verdict fails to allocate\\npsock-\u003ecork.\\n\\nThe \\\"*copied\\\" also needs to be updated such that a proper error can\\nbe returned to the caller, sendmsg. It fails to allocate psock-\u003ecork.\\nNothing has been corked so far, so this patch simply sets \\\"*copied\\\"\\nto 0.\\n\\n[0]:\\nWARNING: net/ipv4/af_inet.c:156 at inet_sock_destruct+0x623/0x730 net/ipv4/af_inet.c:156, CPU#1: syz-executor/5983\\nModules linked in:\\nCPU: 1 UID: 0 PID: 5983 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)\\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025\\nRIP: 0010:inet_sock_destruct+0x623/0x730 net/ipv4/af_inet.c:156\\nCode: 0f 0b 90 e9 62 fe ff ff e8 7a db b5 f7 90 0f 0b 90 e9 95 fe ff ff e8 6c db b5 f7 90 0f 0b 90 e9 bb fe ff ff e8 5e db b5 f7 90 \u003c0f\u003e 0b 90 e9 e1 fe ff ff 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 9f fc\\nRSP: 0018:ffffc90000a08b48 EFLAGS: 00010246\\nRAX: ffffffff8a09d0b2 RBX: dffffc0000000000 RCX: ffff888024a23c80\\nRDX: 0000000000000100 RSI: 0000000000000fff RDI: 0000000000000000\\nRBP: 0000000000000fff R08: ffff88807e07c627 R09: 1ffff1100fc0f8c4\\nR10: dffffc0000000000 R11: ffffed100fc0f8c5 R12: ffff88807e07c380\\nR13: dffffc0000000000 R14: ffff88807e07c60c R15: 1ffff1100fc0f872\\nFS: 00005555604c4500(0000) GS:ffff888125af1000(0000) knlGS:0000000000000000\\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\nCR2: 00005555604df5c8 CR3: 0000000032b06000 CR4: 00000000003526f0\\nCall Trace:\\n \u003cIRQ\u003e\\n __sk_destruct+0x86/0x660 net/core/sock.c:2339\\n rcu_do_batch kernel/rcu/tree.c:2605 [inline]\\n rcu_core+0xca8/0x1770 kernel/rcu/tree.c:2861\\n handle_softirqs+0x286/0x870 kernel/softirq.c:579\\n __do_softirq kernel/softirq.c:613 [inline]\\n invoke_softirq kernel/softirq.c:453 [inline]\\n __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680\\n irq_exit_rcu+0x9/0x30 kernel/softirq.c:696\\n instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1052 [inline]\\n sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1052\\n 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"redhat_vex": {
"aggregate_severity": "Low",
"current_release_date": "2026-06-30T10:21:50+00:00",
"cve": "CVE-2025-39913",
"id": "CVE-2025-39913",
"initial_release_date": "2025-10-01T00:00:00+00:00",
"product_status:known_affected": "232",
"product_status:known_not_affected": "42",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: tcp_bpf: Call sk_msg_free() when tcp_bpf_send_verdict() fails to allocate psock-\u003ecork",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-39913.json",
"version": "3"
},
"vulnrichment": {
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\"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-06-10T20:41:05.336855Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-06-11T17:37:58.187Z\"}}], \"cna\": {\"title\": \"tcp_bpf: Call sk_msg_free() when tcp_bpf_send_verdict() fails to allocate psock-\u003ecork.\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"4f738adba30a7cfc006f605707e7aee847ffefa0\", \"lessThan\": \"08f58d10f5abf11d297cc910754922498c921f91\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"4f738adba30a7cfc006f605707e7aee847ffefa0\", \"lessThan\": \"05366527f44cf4b884f3d9462ae8009be9665856\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"4f738adba30a7cfc006f605707e7aee847ffefa0\", \"lessThan\": \"7429b8b9bfbc276fd304fbaebc405f46b421fedf\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"4f738adba30a7cfc006f605707e7aee847ffefa0\", \"lessThan\": \"9c2a6456bdf9794474460d885c359b6c4522d6e3\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"4f738adba30a7cfc006f605707e7aee847ffefa0\", \"lessThan\": \"66bcb04a441fbf15d66834b7e3eefb313dd750c8\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"4f738adba30a7cfc006f605707e7aee847ffefa0\", \"lessThan\": \"539920180c55f5e13a2488a2339f94e6b8cb69e0\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"4f738adba30a7cfc006f605707e7aee847ffefa0\", \"lessThan\": \"de89e58368f8f07df005ecc1c86ad94898a999f2\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"4f738adba30a7cfc006f605707e7aee847ffefa0\", \"lessThan\": \"a3967baad4d533dc254c31e0d221e51c8d223d58\", \"versionType\": \"git\"}], \"programFiles\": [\"net/ipv4/tcp_bpf.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.17\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"4.17\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.4.300\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.245\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.194\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.153\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.107\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12.48\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.12.*\"}, {\"status\": \"unaffected\", \"version\": \"6.16.8\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.16.*\"}, {\"status\": \"unaffected\", \"version\": \"6.17\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/ipv4/tcp_bpf.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/08f58d10f5abf11d297cc910754922498c921f91\"}, {\"url\": \"https://git.kernel.org/stable/c/05366527f44cf4b884f3d9462ae8009be9665856\"}, {\"url\": \"https://git.kernel.org/stable/c/7429b8b9bfbc276fd304fbaebc405f46b421fedf\"}, {\"url\": \"https://git.kernel.org/stable/c/9c2a6456bdf9794474460d885c359b6c4522d6e3\"}, {\"url\": \"https://git.kernel.org/stable/c/66bcb04a441fbf15d66834b7e3eefb313dd750c8\"}, {\"url\": \"https://git.kernel.org/stable/c/539920180c55f5e13a2488a2339f94e6b8cb69e0\"}, {\"url\": \"https://git.kernel.org/stable/c/de89e58368f8f07df005ecc1c86ad94898a999f2\"}, {\"url\": \"https://git.kernel.org/stable/c/a3967baad4d533dc254c31e0d221e51c8d223d58\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\ntcp_bpf: Call sk_msg_free() when tcp_bpf_send_verdict() fails to allocate psock-\u003ecork.\\n\\nsyzbot reported the splat below. [0]\\n\\nThe repro does the following:\\n\\n 1. Load a sk_msg prog that calls bpf_msg_cork_bytes(msg, cork_bytes)\\n 2. Attach the prog to a SOCKMAP\\n 3. Add a socket to the SOCKMAP\\n 4. Activate fault injection\\n 5. Send data less than cork_bytes\\n\\nAt 5., the data is carried over to the next sendmsg() as it is\\nsmaller than the cork_bytes specified by bpf_msg_cork_bytes().\\n\\nThen, tcp_bpf_send_verdict() tries to allocate psock-\u003ecork to hold\\nthe data, but this fails silently due to fault injection + __GFP_NOWARN.\\n\\nIf the allocation fails, we need to revert the sk-\u003esk_forward_alloc\\nchange done by sk_msg_alloc().\\n\\nLet\u0027s call sk_msg_free() when tcp_bpf_send_verdict fails to allocate\\npsock-\u003ecork.\\n\\nThe \\\"*copied\\\" also needs to be updated such that a proper error can\\nbe returned to the caller, sendmsg. It fails to allocate psock-\u003ecork.\\nNothing has been corked so far, so this patch simply sets \\\"*copied\\\"\\nto 0.\\n\\n[0]:\\nWARNING: net/ipv4/af_inet.c:156 at inet_sock_destruct+0x623/0x730 net/ipv4/af_inet.c:156, CPU#1: syz-executor/5983\\nModules linked in:\\nCPU: 1 UID: 0 PID: 5983 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)\\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025\\nRIP: 0010:inet_sock_destruct+0x623/0x730 net/ipv4/af_inet.c:156\\nCode: 0f 0b 90 e9 62 fe ff ff e8 7a db b5 f7 90 0f 0b 90 e9 95 fe ff ff e8 6c db b5 f7 90 0f 0b 90 e9 bb fe ff ff e8 5e db b5 f7 90 \u003c0f\u003e 0b 90 e9 e1 fe ff ff 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 9f fc\\nRSP: 0018:ffffc90000a08b48 EFLAGS: 00010246\\nRAX: ffffffff8a09d0b2 RBX: dffffc0000000000 RCX: ffff888024a23c80\\nRDX: 0000000000000100 RSI: 0000000000000fff RDI: 0000000000000000\\nRBP: 0000000000000fff R08: ffff88807e07c627 R09: 1ffff1100fc0f8c4\\nR10: dffffc0000000000 R11: ffffed100fc0f8c5 R12: ffff88807e07c380\\nR13: dffffc0000000000 R14: ffff88807e07c60c R15: 1ffff1100fc0f872\\nFS: 00005555604c4500(0000) GS:ffff888125af1000(0000) knlGS:0000000000000000\\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\nCR2: 00005555604df5c8 CR3: 0000000032b06000 CR4: 00000000003526f0\\nCall Trace:\\n \u003cIRQ\u003e\\n __sk_destruct+0x86/0x660 net/core/sock.c:2339\\n rcu_do_batch kernel/rcu/tree.c:2605 [inline]\\n rcu_core+0xca8/0x1770 kernel/rcu/tree.c:2861\\n handle_softirqs+0x286/0x870 kernel/softirq.c:579\\n __do_softirq kernel/softirq.c:613 [inline]\\n invoke_softirq kernel/softirq.c:453 [inline]\\n __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680\\n irq_exit_rcu+0x9/0x30 kernel/softirq.c:696\\n instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1052 [inline]\\n sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1052\\n \u003c/IRQ\u003e\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.300\", \"versionStartIncluding\": \"4.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.245\", \"versionStartIncluding\": \"4.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.194\", \"versionStartIncluding\": \"4.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.153\", \"versionStartIncluding\": \"4.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.107\", \"versionStartIncluding\": \"4.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12.48\", \"versionStartIncluding\": \"4.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.16.8\", \"versionStartIncluding\": \"4.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.17\", \"versionStartIncluding\": \"4.17\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T21:38:49.832Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2025-39913\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-06-11T18:44:08.579Z\", \"dateReserved\": \"2025-04-16T07:20:57.147Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-10-01T07:44:36.244Z\", \"assignerShortName\": \"Linux\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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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.
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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.
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.
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