298 lines
15 KiB
JSON
298 lines
15 KiB
JSON
{
|
|
"dataType": "CVE_RECORD",
|
|
"dataVersion": "5.2",
|
|
"cveMetadata": {
|
|
"cveId": "CVE-2026-80967",
|
|
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"state": "PUBLISHED",
|
|
"assignerShortName": "Linux",
|
|
"dateReserved": "2026-08-26T14:34:25.810Z",
|
|
"datePublished": "2026-09-11T19:42:31.811Z",
|
|
"dateUpdated": "2026-10-30T12:31:30.940Z"
|
|
},
|
|
"containers": {
|
|
"cna": {
|
|
"providerMetadata": {
|
|
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"shortName": "Linux",
|
|
"dateUpdated": "2026-10-30T12:31:30.940Z"
|
|
},
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: pcxhr: initialize mutexes before requesting threaded IRQ\n\npcxhr_probe() requests pcxhr_threaded_irq() before initializing\nmgr->lock, even though the threaded handler takes that mutex.\n\nInitialize the manager locks before request_threaded_irq() so an\nearly interrupt cannot run against uninitialized mutex state during\nprobe."
|
|
}
|
|
],
|
|
"metrics": [
|
|
{
|
|
"cvssV3_1": {
|
|
"version": "3.1",
|
|
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
|
|
"baseScore": 8.4,
|
|
"baseSeverity": "HIGH"
|
|
},
|
|
"scenarios": [
|
|
{
|
|
"lang": "en",
|
|
"value": "AV:L - The flaw is reached only from snd-pcxhr PCI probe (pcxhr_probe() -> request_threaded_irq() -> pcxhr_threaded_irq()) on a locally attached Digigram PCXHR board; studio, broadcast, and embedded audio systems enumerate that card at boot or udev bind, which is a local PCI probe path, not a network or USB protocol path.\nAC:L - pcxhr_probe() never masks PLX doorbell IRQs before request_threaded_irq(), so leftover or device-asserted PCXHR_IRQCS_ACTIVE_PCIDB plus TIMER/MASK bits wake pcxhr_threaded_irq() immediately; on preemptible kernels that handler preempts probe before mutex_init(), so the attacker does not depend on an uncontrollable race.\nPR:N - pcxhr_probe() performs no capability or authentication checks; when matching PCI hardware is present, kernel enumeration/udev runs the vulnerable request_threaded_irq() sequence automatically without an OS account or user-namespace privilege.\nUI:N - The uninitialized mutex is taken in the threaded IRQ during automatic PCI probe; no victim must open ALSA device nodes, load firmware, or otherwise interact.\nS:U - Uninitialized-mutex use and the follow-on NULL mgr->prmh dereference occur inside the host kernel pcxhr driver and do not cross a VM, container, or IOMMU security boundary.\nC:H - pcxhr_threaded_irq() takes uninitialized mgr->lock (and pcxhr_msg_thread() may take uninitialized mgr->msg_lock) with a zeroed wait_list, then reads through NULL mgr->prmh; that uninitialized-lock/IRQ-thread memory-safety failure can disclose kernel memory rather than a small bounded leak.\nI:H - Probe can mutex_init() mgr->lock while the IRQ thread still holds the zeroed mutex, and pcxhr_init_rmh() writes through NULL prmh; that lock-state corruption and invalid kernel write are exploitable memory-corruption/control-flow primitives, not a pure crash.\nA:H - Locking an uninitialized mutex, DEBUG_MUTEXES checks, and NULL dereference of mgr->prmh in pcxhr_msg_thread() cause a kernel oops or panic during probe, fully denying availability."
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"affected": [
|
|
{
|
|
"product": "Linux",
|
|
"vendor": "Linux",
|
|
"defaultStatus": "unaffected",
|
|
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
|
|
"programFiles": [
|
|
"sound/pci/pcxhr/pcxhr.c"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "9bef72bdb26e291d6dffb04768741a0e49582666",
|
|
"lessThan": "20a0f80f67a1495a57e5a3ba0fa172a0f919691d",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "9bef72bdb26e291d6dffb04768741a0e49582666",
|
|
"lessThan": "039602d6ddb1febbb0561b30dab04461f78a1319",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "9bef72bdb26e291d6dffb04768741a0e49582666",
|
|
"lessThan": "a5f405adb0229c9cf64eb3d695c333c92e3d3d4f",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "9bef72bdb26e291d6dffb04768741a0e49582666",
|
|
"lessThan": "ede25b7fea0d7487ee8528bf35dc7b9a1cbcd814",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "9bef72bdb26e291d6dffb04768741a0e49582666",
|
|
"lessThan": "c069b3cfd753d6688ea0271c43553631ab38ce10",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "9bef72bdb26e291d6dffb04768741a0e49582666",
|
|
"lessThan": "7ef9ad82d95dd3c74570d80a689a0570fbc7539e",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "9bef72bdb26e291d6dffb04768741a0e49582666",
|
|
"lessThan": "7cf280fbef5db6310e1b32074c8c34d1ba459796",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "9bef72bdb26e291d6dffb04768741a0e49582666",
|
|
"lessThan": "6c97817e20598e5473094e0e38d1f51f1cf4dfff",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
}
|
|
]
|
|
},
|
|
{
|
|
"product": "Linux",
|
|
"vendor": "Linux",
|
|
"defaultStatus": "affected",
|
|
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
|
|
"programFiles": [
|
|
"sound/pci/pcxhr/pcxhr.c"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "3.18",
|
|
"status": "affected"
|
|
},
|
|
{
|
|
"version": "0",
|
|
"lessThan": "3.18",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "5.10.273",
|
|
"lessThanOrEqual": "5.10.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "5.15.221",
|
|
"lessThanOrEqual": "5.15.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.1.188",
|
|
"lessThanOrEqual": "6.1.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.6.157",
|
|
"lessThanOrEqual": "6.6.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.12.109",
|
|
"lessThanOrEqual": "6.12.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.18.50",
|
|
"lessThanOrEqual": "6.18.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "7.2.4",
|
|
"lessThanOrEqual": "7.2.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "7.3",
|
|
"lessThanOrEqual": "*",
|
|
"status": "unaffected",
|
|
"versionType": "original_commit_for_fix"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"cpeApplicability": [
|
|
{
|
|
"nodes": [
|
|
{
|
|
"operator": "OR",
|
|
"negate": false,
|
|
"cpeMatch": [
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "3.18",
|
|
"versionEndExcluding": "5.10.273"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "3.18",
|
|
"versionEndExcluding": "5.15.221"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "3.18",
|
|
"versionEndExcluding": "6.1.188"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "3.18",
|
|
"versionEndExcluding": "6.6.157"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "3.18",
|
|
"versionEndExcluding": "6.12.109"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "3.18",
|
|
"versionEndExcluding": "6.18.50"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "3.18",
|
|
"versionEndExcluding": "7.2.4"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "3.18",
|
|
"versionEndExcluding": "7.3"
|
|
}
|
|
]
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"references": [
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/20a0f80f67a1495a57e5a3ba0fa172a0f919691d"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/039602d6ddb1febbb0561b30dab04461f78a1319"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/a5f405adb0229c9cf64eb3d695c333c92e3d3d4f"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/ede25b7fea0d7487ee8528bf35dc7b9a1cbcd814"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/c069b3cfd753d6688ea0271c43553631ab38ce10"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/7ef9ad82d95dd3c74570d80a689a0570fbc7539e"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/7cf280fbef5db6310e1b32074c8c34d1ba459796"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/6c97817e20598e5473094e0e38d1f51f1cf4dfff"
|
|
}
|
|
],
|
|
"title": "ALSA: pcxhr: initialize mutexes before requesting threaded IRQ",
|
|
"x_generator": {
|
|
"engine": "bippy-1.2.0"
|
|
}
|
|
},
|
|
"adp": [
|
|
{
|
|
"metrics": [
|
|
{
|
|
"other": {
|
|
"type": "ssvc",
|
|
"content": {
|
|
"id": "CVE-2026-80967",
|
|
"role": "CISA Coordinator",
|
|
"options": [
|
|
{
|
|
"Exploitation": "none"
|
|
},
|
|
{
|
|
"Automatable": "no"
|
|
},
|
|
{
|
|
"Technical Impact": "total"
|
|
}
|
|
],
|
|
"version": "2.0.3",
|
|
"timestamp": "2026-10-16T19:21:30.969232Z"
|
|
}
|
|
}
|
|
}
|
|
],
|
|
"title": "CISA ADP Vulnrichment",
|
|
"providerMetadata": {
|
|
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
|
|
"shortName": "CISA-ADP",
|
|
"dateUpdated": "2026-10-16T19:26:36.758Z"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
} |