FKIE_CVE-2024-26886
Vulnerability from fkie_nvd - Published: 2024-04-17 11:15 - Updated: 2026-10-30 13:17
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: af_bluetooth: Fix deadlock
Attemting to do sock_lock on .recvmsg may cause a deadlock as shown
bellow, so instead of using sock_sock this uses sk_receive_queue.lock
on bt_sock_ioctl to avoid the UAF:
INFO: task kworker/u9:1:121 blocked for more than 30 seconds.
Not tainted 6.7.6-lemon #183
Workqueue: hci0 hci_rx_work
Call Trace:
<TASK>
__schedule+0x37d/0xa00
schedule+0x32/0xe0
__lock_sock+0x68/0xa0
? __pfx_autoremove_wake_function+0x10/0x10
lock_sock_nested+0x43/0x50
l2cap_sock_recv_cb+0x21/0xa0
l2cap_recv_frame+0x55b/0x30a0
? psi_task_switch+0xeb/0x270
? finish_task_switch.isra.0+0x93/0x2a0
hci_rx_work+0x33a/0x3f0
process_one_work+0x13a/0x2f0
worker_thread+0x2f0/0x410
? __pfx_worker_thread+0x10/0x10
kthread+0xe0/0x110
? __pfx_kthread+0x10/0x10
ret_from_fork+0x2c/0x50
? __pfx_kthread+0x10/0x10
ret_from_fork_asm+0x1b/0x30
</TASK>
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * |
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"net/bluetooth/af_bluetooth.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "60673f442984fe689d4127a5dd4be414247b3d67",
"status": "affected",
"version": "2b16d960c79abc397f102c3d23d30005b68cb036",
"versionType": "git"
},
{
"lessThan": "0309acebc4b3884bfda332558bb8a1df052f4f39",
"status": "affected",
"version": "37f71e2c9f515834841826f4eb68ec33cfb2a1ff",
"versionType": "git"
},
{
"lessThan": "64be3c6154886200708da0dfe259705fb992416c",
"status": "affected",
"version": "1d576c3a5af850bf11fbd103f9ba11aa6d6061fb",
"versionType": "git"
},
{
"lessThan": "817e8138ce86001b2fa5c63d6ede756e205a01f7",
"status": "affected",
"version": "2e07e8348ea454615e268222ae3fc240421be768",
"versionType": "git"
},
{
"lessThan": "2c9e2df022ef8b9d7fac58a04a2ef4ed25288955",
"status": "affected",
"version": "2e07e8348ea454615e268222ae3fc240421be768",
"versionType": "git"
},
{
"lessThan": "f7b94bdc1ec107c92262716b073b3e816d4784fb",
"status": "affected",
"version": "2e07e8348ea454615e268222ae3fc240421be768",
"versionType": "git"
},
{
"status": "affected",
"version": "db1b14eec8c61a20374de9f9c2ddc6c9406a8c42",
"versionType": "git"
},
{
"lessThan": "5.15.209",
"status": "affected",
"version": "5.15.146",
"versionType": "semver"
},
{
"lessThan": "6.1.191",
"status": "affected",
"version": "6.1.70",
"versionType": "semver"
},
{
"lessThan": "6.6.23",
"status": "affected",
"version": "6.6.9",
"versionType": "semver"
},
{
"lessThan": "5.11",
"status": "affected",
"version": "5.10.206",
"versionType": "semver"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"net/bluetooth/af_bluetooth.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.7"
},
{
"lessThan": "6.7",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.209",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.191",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.23",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.7.*",
"status": "unaffected",
"version": "6.7.11",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.8.*",
"status": "unaffected",
"version": "6.8.2",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.9",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "BF2B36A4-0863-4B10-93EA-AA0E9F9A22F0",
"versionEndExcluding": "5.11",
"versionStartIncluding": "5.10.206",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "FAA2E1CA-770E-4B32-875B-D5C8778DB075",
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "A79BE0FB-9E48-4970-B1FA-2455103632EA",
"versionEndExcluding": "6.1.83",
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{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionEndExcluding": "6.6.23",
"versionStartIncluding": "6.6.9",
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{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "543A75FF-25B8-4046-A514-1EA8EDD87AB1",
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}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: af_bluetooth: Fix deadlock\n\nAttemting to do sock_lock on .recvmsg may cause a deadlock as shown\nbellow, so instead of using sock_sock this uses sk_receive_queue.lock\non bt_sock_ioctl to avoid the UAF:\n\nINFO: task kworker/u9:1:121 blocked for more than 30 seconds.\n Not tainted 6.7.6-lemon #183\nWorkqueue: hci0 hci_rx_work\nCall Trace:\n \u003cTASK\u003e\n __schedule+0x37d/0xa00\n schedule+0x32/0xe0\n __lock_sock+0x68/0xa0\n ? __pfx_autoremove_wake_function+0x10/0x10\n lock_sock_nested+0x43/0x50\n l2cap_sock_recv_cb+0x21/0xa0\n l2cap_recv_frame+0x55b/0x30a0\n ? psi_task_switch+0xeb/0x270\n ? finish_task_switch.isra.0+0x93/0x2a0\n hci_rx_work+0x33a/0x3f0\n process_one_work+0x13a/0x2f0\n worker_thread+0x2f0/0x410\n ? __pfx_worker_thread+0x10/0x10\n kthread+0xe0/0x110\n ? __pfx_kthread+0x10/0x10\n ret_from_fork+0x2c/0x50\n ? __pfx_kthread+0x10/0x10\n ret_from_fork_asm+0x1b/0x30\n \u003c/TASK\u003e"
},
{
"lang": "es",
"value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: Bluetooth: af_bluetooth: Reparar interbloqueo Intentar ejecutar sock_lock en .recvmsg puede causar un interbloqueo como se muestra a continuaci\u00f3n, por lo que en lugar de usar sock_sock, usa sk_receive_queue.lock en bt_sock_ioctl para evitar el UAF: INFORMACI\u00d3N: tarea kworker/u9:1:121 bloqueada durante m\u00e1s de 30 segundos. No contaminado 6.7.6-lemon #183 Cola de trabajo: hci0 hci_rx_work Seguimiento de llamadas: __schedule+0x37d/0xa00 Schedule+0x32/0xe0 __lock_sock+0x68/0xa0 ? __pfx_autoremove_wake_function+0x10/0x10 lock_sock_nested+0x43/0x50 l2cap_sock_recv_cb+0x21/0xa0 l2cap_recv_frame+0x55b/0x30a0 ? psi_task_switch+0xeb/0x270? terminar_task_switch.isra.0+0x93/0x2a0 hci_rx_work+0x33a/0x3f0 proceso_one_work+0x13a/0x2f0 trabajador_thread+0x2f0/0x410 ? __pfx_worker_thread+0x10/0x10 kthread+0xe0/0x110 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x2c/0x50 ? __pfx_kthread+0x10/0x10 ret_from_fork_asm+0x1b/0x30 "
}
],
"id": "CVE-2024-26886",
"lastModified": "2026-10-30T13:17:23.177",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 3.6,
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2024-26886",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-06-17T17:41:20.868479Z",
"version": "2.0.3"
}
}
]
},
"published": "2024-04-17T11:15:10.253",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/0309acebc4b3884bfda332558bb8a1df052f4f39"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
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],
"url": "https://git.kernel.org/stable/c/2c9e2df022ef8b9d7fac58a04a2ef4ed25288955"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/60673f442984fe689d4127a5dd4be414247b3d67"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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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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"tags": [
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}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-416"
}
],
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
]
}
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Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
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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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