CVE-2026-43132

In the Linux kernel, the following vulnerability has been resolved: dm-verity: correctly handle dm_bufio_client_create() failure If either of the calls to dm_bufio_client_create() in verity_fec_ctr() fails, then dm_bufio_client_destroy() is later called with an ERR_PTR() argument. That causes a crash. Fix this.

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/031f2adc1499b112a39ac316bbab3c80bba16cf2	Patch
https://git.kernel.org/stable/c/119f4f04186fa4f33ee6bd39af145cdaff1ff17f	Patch
https://git.kernel.org/stable/c/451cc650e40e8c3222d37877a9e4be0fcaacb9c8	Patch
https://git.kernel.org/stable/c/5c2217ddb3b7e7ac25f4ebe9061258fc8f1c9167	Patch
https://git.kernel.org/stable/c/6283e49af87a9c121bb01e5a64a7fe5706c210bc	Patch
https://git.kernel.org/stable/c/9b8dc1d327e2928f3da59ced0595d850d31c0936	Patch
https://git.kernel.org/stable/c/b154a868a3856fb5216c4f82981d8a503832e095	Patch
https://git.kernel.org/stable/c/d3e1f1adc8a0289efe2d2cdc90edb8c6ffe0b5ef	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::::::::

History

11 Nov 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta: dm-verity: manejar correctamente el fallo de dm_bufio_client_create() Si cualquiera de las llamadas a dm_bufio_client_create() en verity_fec_ctr() falla, entonces dm_bufio_client_destroy() es llamada posteriormente con un argumento ERR_PTR(). Eso causa un fallo. Corregir esto.

Information

Published : 2026-05-06 12:16

Updated : 2026-11-11 21:10

NVD link : CVE-2026-43132

Mitre link : CVE-2026-43132

CVE.ORG link : CVE-2026-43132

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo

{"id": "CVE-2026-43132", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-43132", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-11-06T15:29:11.377343Z"}}], "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": "a739ff3f543afbb4a041c16cd0182c8e8d366e70", "lessThan": "6283e49af87a9c121bb01e5a64a7fe5706c210bc", "versionType": "git"}, {"status": "affected", "version": "a739ff3f543afbb4a041c16cd0182c8e8d366e70", "lessThan": "d3e1f1adc8a0289efe2d2cdc90edb8c6ffe0b5ef", "versionType": "git"}, {"status": "affected", "version": "a739ff3f543afbb4a041c16cd0182c8e8d366e70", "lessThan": "5c2217ddb3b7e7ac25f4ebe9061258fc8f1c9167", "versionType": "git"}, {"status": "affected", "version": "a739ff3f543afbb4a041c16cd0182c8e8d366e70", "lessThan": "031f2adc1499b112a39ac316bbab3c80bba16cf2", "versionType": "git"}, {"status": "affected", "version": "a739ff3f543afbb4a041c16cd0182c8e8d366e70", "lessThan": "9b8dc1d327e2928f3da59ced0595d850d31c0936", "versionType": "git"}, {"status": "affected", "version": "a739ff3f543afbb4a041c16cd0182c8e8d366e70", "lessThan": "451cc650e40e8c3222d37877a9e4be0fcaacb9c8", "versionType": "git"}, {"status": "affected", "version": "a739ff3f543afbb4a041c16cd0182c8e8d366e70", "lessThan": "b154a868a3856fb5216c4f82981d8a503832e095", "versionType": "git"}, {"status": "affected", "version": "a739ff3f543afbb4a041c16cd0182c8e8d366e70", "lessThan": "119f4f04186fa4f33ee6bd39af145cdaff1ff17f", "versionType": "git"}], "programFiles": ["drivers/md/dm-verity-fec.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "4.5"}, {"status": "unaffected", "version": "0", "lessThan": "4.5", "versionType": "semver"}, {"status": "unaffected", "version": "5.10.252", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.202", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.165", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.128", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.75", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.16", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "6.19.6", "versionType": "semver", "lessThanOrEqual": "6.19.*"}, {"status": "unaffected", "version": "7.0", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/md/dm-verity-fec.c"], "defaultStatus": "affected"}]}], "published": "2026-05-06T12:16:30.357", "references": [{"url": "https://git.kernel.org/stable/c/031f2adc1499b112a39ac316bbab3c80bba16cf2", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/119f4f04186fa4f33ee6bd39af145cdaff1ff17f", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/451cc650e40e8c3222d37877a9e4be0fcaacb9c8", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/5c2217ddb3b7e7ac25f4ebe9061258fc8f1c9167", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/6283e49af87a9c121bb01e5a64a7fe5706c210bc", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/9b8dc1d327e2928f3da59ced0595d850d31c0936", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/b154a868a3856fb5216c4f82981d8a503832e095", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/d3e1f1adc8a0289efe2d2cdc90edb8c6ffe0b5ef", "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\ndm-verity: correctly handle dm_bufio_client_create() failure\n\nIf either of the calls to dm_bufio_client_create() in verity_fec_ctr()\nfails, then dm_bufio_client_destroy() is later called with an ERR_PTR()\nargument. That causes a crash. Fix this."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ndm-verity: manejar correctamente el fallo de dm_bufio_client_create()\n\nSi cualquiera de las llamadas a dm_bufio_client_create() en verity_fec_ctr() falla, entonces dm_bufio_client_destroy() es llamada posteriormente con un argumento ERR_PTR(). Eso causa un fallo. Corregir esto."}], "lastModified": "2026-11-11T21:10:00.200", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "11E23433-D08C-4704-9F30-C2866E3394DD", "versionEndExcluding": "5.10.252", "versionStartIncluding": "4.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4002FC2B-1456-4666-B240-0EBF590C4671", "versionEndExcluding": "5.15.202", "versionStartIncluding": "5.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "797C7F46-D0BE-4FB8-A502-C5EF8E6B6654", "versionEndExcluding": "6.1.165", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "851E9353-6C09-4CC9-877E-E09DB164A3C2", "versionEndExcluding": "6.6.128", "versionStartIncluding": "6.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BCE16369-98ED-41CF-8995-DFDC10B288D2", "versionEndExcluding": "6.12.75", "versionStartIncluding": "6.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B4B8CDA9-BADF-4CF5-8B3B-702DE8EEA40B", "versionEndExcluding": "6.18.16", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "373EEEDA-FAA1-4FB4-B6ED-DB4DD99DBE67", "versionEndExcluding": "6.19.6", "versionStartIncluding": "6.19"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}