CVE-2026-23096

In the Linux kernel, the following vulnerability has been resolved: uacce: fix cdev handling in the cleanup path When cdev_device_add fails, it internally releases the cdev memory, and if cdev_device_del is then executed, it will cause a hang error. To fix it, we check the return value of cdev_device_add() and clear uacce->cdev to avoid calling cdev_device_del in the uacce_remove.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/1bc3e51367c420e6db31f41efa874c7a8e12194a	Patch
https://git.kernel.org/stable/c/819d647406200d0e83e56fd2df8f451b11290559	Patch
https://git.kernel.org/stable/c/98d67a1bd6caddd0a8b8c82a0b925742cf500936	Patch
https://git.kernel.org/stable/c/a3bece3678f6c88db1f44c602b2a63e84b4040ac	Patch
https://git.kernel.org/stable/c/bd2393ed7712513e7e2dbcb6e21464a67ff9e702	Patch
https://git.kernel.org/stable/c/c94c7188d325bc5137d447d67a2f18f7d4f2f4a3	Patch
https://git.kernel.org/stable/c/d9031575a2f8aabc53af3025dd79af313a2e046b	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:6.19:rc1::::::
	cpe:2.3:o:linux:linux_kernel:6.19:rc2::::::
	cpe:2.3:o:linux:linux_kernel:6.19:rc3::::::
	cpe:2.3:o:linux:linux_kernel:6.19:rc4::::::
	cpe:2.3:o:linux:linux_kernel:6.19:rc5::::::
	cpe:2.3:o:linux:linux_kernel:6.19:rc6::::::

History

No history.

Information

Published : 2026-02-04 17:16

Updated : 2026-06-17 10:20

NVD link : CVE-2026-23096

Mitre link : CVE-2026-23096

CVE.ORG link : CVE-2026-23096

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo

{"id": "CVE-2026-23096", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "015d239ac0142ad0e26567fd890ef8d171f13709", "lessThan": "c94c7188d325bc5137d447d67a2f18f7d4f2f4a3", "versionType": "git"}, {"status": "affected", "version": "015d239ac0142ad0e26567fd890ef8d171f13709", "lessThan": "1bc3e51367c420e6db31f41efa874c7a8e12194a", "versionType": "git"}, {"status": "affected", "version": "015d239ac0142ad0e26567fd890ef8d171f13709", "lessThan": "819d647406200d0e83e56fd2df8f451b11290559", "versionType": "git"}, {"status": "affected", "version": "015d239ac0142ad0e26567fd890ef8d171f13709", "lessThan": "d9031575a2f8aabc53af3025dd79af313a2e046b", "versionType": "git"}, {"status": "affected", "version": "015d239ac0142ad0e26567fd890ef8d171f13709", "lessThan": "98d67a1bd6caddd0a8b8c82a0b925742cf500936", "versionType": "git"}, {"status": "affected", "version": "015d239ac0142ad0e26567fd890ef8d171f13709", "lessThan": "bd2393ed7712513e7e2dbcb6e21464a67ff9e702", "versionType": "git"}, {"status": "affected", "version": "015d239ac0142ad0e26567fd890ef8d171f13709", "lessThan": "a3bece3678f6c88db1f44c602b2a63e84b4040ac", "versionType": "git"}], "programFiles": ["drivers/misc/uacce/uacce.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.7"}, {"status": "unaffected", "version": "0", "lessThan": "5.7", "versionType": "semver"}, {"status": "unaffected", "version": "5.10.249", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.199", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.162", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.122", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.68", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.8", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "6.19", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/misc/uacce/uacce.c"], "defaultStatus": "affected"}]}], "published": "2026-02-04T17:16:20.473", "references": [{"url": "https://git.kernel.org/stable/c/1bc3e51367c420e6db31f41efa874c7a8e12194a", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/819d647406200d0e83e56fd2df8f451b11290559", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/98d67a1bd6caddd0a8b8c82a0b925742cf500936", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/a3bece3678f6c88db1f44c602b2a63e84b4040ac", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/bd2393ed7712513e7e2dbcb6e21464a67ff9e702", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/c94c7188d325bc5137d447d67a2f18f7d4f2f4a3", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/d9031575a2f8aabc53af3025dd79af313a2e046b", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nuacce: fix cdev handling in the cleanup path\n\nWhen cdev_device_add fails, it internally releases the cdev memory,\nand if cdev_device_del is then executed, it will cause a hang error.\nTo fix it, we check the return value of cdev_device_add() and clear\nuacce->cdev to avoid calling cdev_device_del in the uacce_remove."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nuacce: correcci\u00f3n del manejo de cdev en la ruta de limpieza\n\nCuando cdev_device_add falla, libera internamente la memoria de cdev, y si cdev_device_del se ejecuta entonces, causar\u00e1 un error de bloqueo. Para solucionarlo, verificamos el valor de retorno de cdev_device_add() y borramos uacce->cdev para evitar llamar a cdev_device_del en uacce_remove."}], "lastModified": "2026-06-17T10:20:52.870", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5B635197-F169-4155-A953-A712BDD15376", "versionEndExcluding": "5.10.249", "versionStartIncluding": "5.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A247FBA6-BEB9-484F-B892-DD5517949CCD", "versionEndExcluding": "5.15.199", "versionStartIncluding": "5.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6579E0D4-0641-479D-A4C3-0EF618798C55", "versionEndExcluding": "6.1.162", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8EAAE395-0162-4BAF-9AD5-E9AF3C869C4F", "versionEndExcluding": "6.6.122", "versionStartIncluding": "6.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "52F38E19-0FDD-4992-9D6D-D4169D689598", "versionEndExcluding": "6.12.68", "versionStartIncluding": "6.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E65C6E79-7EBE-4C77-93F0-818CF5B38F4E", "versionEndExcluding": "6.18.8", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "17B67AA7-40D6-4AFA-8459-F200F3D7CFD1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C47E4CC9-C826-4FA9-B014-7FE3D9B318B2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F71D92C0-C023-48BD-B3B6-70B638EEE298"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "13580667-0A98-40CC-B29F-D12790B91BDB"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CAD1FED7-CF48-47BF-AC7D-7B6FA3C065FC"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3EF854A1-ABB1-4E93-BE9A-44569EC76C0D"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}