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vuln-cve/data/2026/74xxx/CVE-2026-74379.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-74379",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2026-08-15T05:44:03.890Z",
"datePublished": "2026-08-15T05:58:57.024Z",
"dateUpdated": "2026-11-06T17:05:44.980Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-08-17T05:18:16.387Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndax/kmem: account for partial discontiguous resource upon removal\n\nWhen dev_dax_kmem_probe() partially succeeds (at least one range is\nmapped) but a subsequent range fails request_mem_region() or\nadd_memory_driver_managed(), the probe silently continues, ultimately\nreturning success, but with the corresponding range resource NULL'ed out.\n\ndev_dax_kmem_remove() iterates over all dax_device ranges regardless of if\nthe underlying resource exists. When remove_memory() is called later, it\nreturns 0 because the memory was never added which causes\ndev_dax_kmem_remove() to incorrectly assume the (nonexistent) resource can\nbe removed and attempts cleanup on a NULL pointer.\n\nFix this by skipping these ranges altogether, noting that these cases are\nconsidered success, such that the cleanup is still reached when all\nactually-added ranges are successfully removed."
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/dax/kmem.c"
],
"versions": [
{
"version": "60e93dc097f7f13a16a7e4b75b8803eb2adbb721",
"lessThan": "ef4fc53898bd6c4d0119cc6d419ebef7f2560f31",
"status": "affected",
"versionType": "git"
},
{
"version": "60e93dc097f7f13a16a7e4b75b8803eb2adbb721",
"lessThan": "5d3139abb9d1671fa5e42c3d6d8cb3b05479c5bb",
"status": "affected",
"versionType": "git"
},
{
"version": "60e93dc097f7f13a16a7e4b75b8803eb2adbb721",
"lessThan": "d47b0b8a69a13e06afafa54723f3e8c99b0c788f",
"status": "affected",
"versionType": "git"
},
{
"version": "60e93dc097f7f13a16a7e4b75b8803eb2adbb721",
"lessThan": "799e54c510a03a65a57627018a817838d72f35bd",
"status": "affected",
"versionType": "git"
},
{
"version": "60e93dc097f7f13a16a7e4b75b8803eb2adbb721",
"lessThan": "598ed7393a639c7547b28ff3e14db9f1ac37c132",
"status": "affected",
"versionType": "git"
},
{
"version": "60e93dc097f7f13a16a7e4b75b8803eb2adbb721",
"lessThan": "30ea97affbcce236c57287c82dc6ef7a29c63b76",
"status": "affected",
"versionType": "git"
},
{
"version": "60e93dc097f7f13a16a7e4b75b8803eb2adbb721",
"lessThan": "8aa442cfce79e2d69e72fc8e0c0864ac2971149d",
"status": "affected",
"versionType": "git"
}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/dax/kmem.c"
],
"versions": [
{
"version": "5.10",
"status": "affected"
},
{
"version": "0",
"lessThan": "5.10",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.15.212",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.1.178",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.6.145",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.12.97",
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.18.40",
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "7.1.5",
"lessThanOrEqual": "7.1.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "7.2",
"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": "5.10",
"versionEndExcluding": "5.15.212"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.10",
"versionEndExcluding": "6.1.178"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.10",
"versionEndExcluding": "6.6.145"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.10",
"versionEndExcluding": "6.12.97"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.10",
"versionEndExcluding": "6.18.40"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.10",
"versionEndExcluding": "7.1.5"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.10",
"versionEndExcluding": "7.2"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/ef4fc53898bd6c4d0119cc6d419ebef7f2560f31"
},
{
"url": "https://git.kernel.org/stable/c/5d3139abb9d1671fa5e42c3d6d8cb3b05479c5bb"
},
{
"url": "https://git.kernel.org/stable/c/d47b0b8a69a13e06afafa54723f3e8c99b0c788f"
},
{
"url": "https://git.kernel.org/stable/c/799e54c510a03a65a57627018a817838d72f35bd"
},
{
"url": "https://git.kernel.org/stable/c/598ed7393a639c7547b28ff3e14db9f1ac37c132"
},
{
"url": "https://git.kernel.org/stable/c/30ea97affbcce236c57287c82dc6ef7a29c63b76"
},
{
"url": "https://git.kernel.org/stable/c/8aa442cfce79e2d69e72fc8e0c0864ac2971149d"
}
],
"title": "dax/kmem: account for partial discontiguous resource upon removal",
"x_generator": {
"engine": "bippy-1.2.0"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"id": "CVE-2026-74379",
"role": "CISA Coordinator",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-11-06T16:56:42.795588Z"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-11-06T17:05:44.980Z"
}
}
]
}
}