CVE-2026-46327
Full vulnerability record from the local CVENow database.
Description
In the Linux kernel, the following vulnerability has been resolved: dm: fix unlocked test for dm_suspended_md The function dm_blk_report_zones tests if the device is suspended with the "dm_suspended_md" call. However, this function is called without holding any locks, so the device may be suspended just after it. Move the call to dm_suspended_md after dm_get_live_table, so that the device can't be suspended after the suspended state was tested.
Severity
HIGH
CVSS score
7.8
(v3.1)
Vulnerability status
Modified
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2026-06-09 14:16:42.400000
Last modified
2026-10-19 20:18:44.227000
View original CVE JSON
{
"id": "CVE-2026-46327",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2026-06-09T14:16:42.400",
"lastModified": "2026-10-19T20:18:44.227",
"vulnStatus": "Modified",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndm: fix unlocked test for dm_suspended_md\n\nThe function dm_blk_report_zones tests if the device is suspended with\nthe \"dm_suspended_md\" call. However, this function is called without\nholding any locks, so the device may be suspended just after it.\n\nMove the call to dm_suspended_md after dm_get_live_table, so that the\ndevice can't be suspended after the suspended state was tested."
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ndm: corrección de la prueba sin bloqueo para dm_suspended_md\n\nLa función dm_blk_report_zones comprueba si el dispositivo está suspendido con la llamada a 'dm_suspended_md'. Sin embargo, esta función es llamada sin mantener ningún bloqueo, por lo que el dispositivo puede ser suspendido justo después de ella.\n\nMover la llamada a dm_suspended_md después de dm_get_live_table, para que el dispositivo no pueda ser suspendido después de que se comprobara el estado de suspensión."
}
],
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "unaffected",
"programFiles": [
"drivers/md/dm-zone.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "f9c1bdf24615303d48a2d0fd629c88f3189563aa",
"lessThan": "175ac0a6115400278d3900f5a04a58b17b3f6cd0",
"versionType": "git",
"status": "affected"
},
{
"version": "37f53a2c60d03743e0eacf7a0c01c279776fef4e",
"lessThan": "7a3385e97af2b6f485fef11e82d8c29adee4be93",
"versionType": "git",
"status": "affected"
},
{
"version": "37f53a2c60d03743e0eacf7a0c01c279776fef4e",
"lessThan": "d809a36692ee1394cac85ce6ba7cf8ea58da5812",
"versionType": "git",
"status": "affected"
},
{
"version": "37f53a2c60d03743e0eacf7a0c01c279776fef4e",
"lessThan": "24c405fdbe215c45e57bba672cc42859038491ee",
"versionType": "git",
"status": "affected"
},
{
"version": "d19bc1b4dd5f322980b1f05f79b2ea4f0db10920",
"versionType": "git",
"status": "affected"
},
{
"version": "6.12.34",
"lessThan": "6.12.75",
"versionType": "semver",
"status": "affected"
},
{
"version": "6.15.3",
"lessThan": "6.16",
"versionType": "semver",
"status": "affected"
}
]
},
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "affected",
"programFiles": [
"drivers/md/dm-zone.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "6.16",
"status": "affected"
},
{
"version": "0",
"lessThan": "6.16",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.12.75",
"lessThanOrEqual": "6.12.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.18.14",
"lessThanOrEqual": "6.18.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.19.4",
"lessThanOrEqual": "6.19.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "7.0",
"lessThanOrEqual": "*",
"versionType": "original_commit_for_fix",
"status": "unaffected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-10-16T15:22:16.430684Z",
"id": "CVE-2026-46327",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Primary",
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
]
},
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-362"
}
]
}
],
"configurations": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.12.34",
"versionEndExcluding": "6.12.75",
"matchCriteriaId": "A8DAA245-0057-42FC-8AC1-567AF3D93866"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.15.3",
"versionEndExcluding": "6.18.14",
"matchCriteriaId": "BBB52BEE-CB23-4AC5-9EB1-563B3501A7DA"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.19",
"versionEndExcluding": "6.19.4",
"matchCriteriaId": "672A3E79-EC03-479D-8503-361DFBDC8092"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/175ac0a6115400278d3900f5a04a58b17b3f6cd0",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
]
},
{
"url": "https://git.kernel.org/stable/c/24c405fdbe215c45e57bba672cc42859038491ee",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
]
},
{
"url": "https://git.kernel.org/stable/c/7a3385e97af2b6f485fef11e82d8c29adee4be93",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
]
},
{
"url": "https://git.kernel.org/stable/c/d809a36692ee1394cac85ce6ba7cf8ea58da5812",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
]
}
]
}