CVE-2026-23426

In the Linux kernel, the following vulnerability has been resolved: drm/logicvc: Fix device node reference leak in logicvc_drm_config_parse() The logicvc_drm_config_parse() function calls of_get_child_by_name() to find the "layers" node but fails to release the reference, leading to a device node reference leak. Fix this by using the __free(device_node) cleanup attribute to automatic release the reference when the variable goes out of scope.

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/0bd326dffd9e103335d77d9c31275c0d5a7979eb	Patch
https://git.kernel.org/stable/c/78e91e49d28e05ccaa6b445bafb5e367d57c9583	Patch
https://git.kernel.org/stable/c/871630255ecd2d9b64ad1d75a7dfc0567d7d9989	Patch
https://git.kernel.org/stable/c/b88f49910be147b7974098b9172b0d3873142d6a	Patch
https://git.kernel.org/stable/c/f8a6eba20edb938166b26e133cc61306e1bc6de9	Patch
https://git.kernel.org/stable/c/fef0e649f8b42bdffe4a916dd46e1b1e9ad2f207	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:6.0:-::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc1::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc2::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc3::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc4::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc5::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc6::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc7::::::

History

No history.

Information

Published : 2026-04-03 14:16

Updated : 2026-07-24 21:10

NVD link : CVE-2026-23426

Mitre link : CVE-2026-23426

CVE.ORG link : CVE-2026-23426

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-Other

{"id": "CVE-2026-23426", "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": "efeeaefe9be56e8ae5e5b4e9ff6d2275ec977ec5", "lessThan": "b88f49910be147b7974098b9172b0d3873142d6a", "versionType": "git"}, {"status": "affected", "version": "efeeaefe9be56e8ae5e5b4e9ff6d2275ec977ec5", "lessThan": "0bd326dffd9e103335d77d9c31275c0d5a7979eb", "versionType": "git"}, {"status": "affected", "version": "efeeaefe9be56e8ae5e5b4e9ff6d2275ec977ec5", "lessThan": "871630255ecd2d9b64ad1d75a7dfc0567d7d9989", "versionType": "git"}, {"status": "affected", "version": "efeeaefe9be56e8ae5e5b4e9ff6d2275ec977ec5", "lessThan": "f8a6eba20edb938166b26e133cc61306e1bc6de9", "versionType": "git"}, {"status": "affected", "version": "efeeaefe9be56e8ae5e5b4e9ff6d2275ec977ec5", "lessThan": "78e91e49d28e05ccaa6b445bafb5e367d57c9583", "versionType": "git"}, {"status": "affected", "version": "efeeaefe9be56e8ae5e5b4e9ff6d2275ec977ec5", "lessThan": "fef0e649f8b42bdffe4a916dd46e1b1e9ad2f207", "versionType": "git"}], "programFiles": ["drivers/gpu/drm/logicvc/logicvc_drm.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.0"}, {"status": "unaffected", "version": "0", "lessThan": "6.0", "versionType": "semver"}, {"status": "unaffected", "version": "6.1.167", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.130", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.77", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.17", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "6.19.7", "versionType": "semver", "lessThanOrEqual": "6.19.*"}, {"status": "unaffected", "version": "7.0", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/gpu/drm/logicvc/logicvc_drm.c"], "defaultStatus": "affected"}]}], "published": "2026-04-03T14:16:28.890", "references": [{"url": "https://git.kernel.org/stable/c/0bd326dffd9e103335d77d9c31275c0d5a7979eb", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/78e91e49d28e05ccaa6b445bafb5e367d57c9583", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/871630255ecd2d9b64ad1d75a7dfc0567d7d9989", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/b88f49910be147b7974098b9172b0d3873142d6a", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/f8a6eba20edb938166b26e133cc61306e1bc6de9", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/fef0e649f8b42bdffe4a916dd46e1b1e9ad2f207", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-Other"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/logicvc: Fix device node reference leak in logicvc_drm_config_parse()\n\nThe logicvc_drm_config_parse() function calls of_get_child_by_name() to\nfind the \"layers\" node but fails to release the reference, leading to a\ndevice node reference leak.\n\nFix this by using the __free(device_node) cleanup attribute to automatic\nrelease the reference when the variable goes out of scope."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ndrm/logicvc: Corrige la fuga de referencia del nodo de dispositivo en logicvc_drm_config_parse()\n\nLa funci\u00f3n logicvc_drm_config_parse() llama a of_get_child_by_name() para encontrar el nodo 'layers' pero no libera la referencia, lo que lleva a una fuga de referencia del nodo de dispositivo.\n\nSoluciona esto usando el atributo de limpieza __free(device_node) para liberar autom\u00e1ticamente la referencia cuando la variable sale de \u00e1mbito."}], "lastModified": "2026-07-24T21:10:00.143", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "72B24488-A57B-4D9C-A7EA-A6020518455B", "versionEndExcluding": "6.1.167", "versionStartIncluding": "6.0.1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C57BB918-DF28-46B3-94F7-144176841267", "versionEndExcluding": "6.6.130", "versionStartIncluding": "6.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B3D12E00-E42D-4056-B354-BAD4903C03A5", "versionEndExcluding": "6.12.77", "versionStartIncluding": "6.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A5E006E4-59C7-43C1-9231-62A72219F2BA", "versionEndExcluding": "6.18.17", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "69245D10-0B71-485E-80C3-A64F077004D3", "versionEndExcluding": "6.19.7", "versionStartIncluding": "6.19"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.0:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7BE551E5-89CF-47A8-9B26-03CE727FBA37"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F253B622-8837-4245-BCE5-A7BF8FC76A16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4AE85AD8-4641-4E7C-A2F4-305E2CD9EE64"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F666C8D8-6538-46D4-B318-87610DE64C34"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "02259FDA-961B-47BC-AE7F-93D7EC6E90C2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "58A9FEFF-C040-420D-8F0A-BFDAAA1DF258"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1D2315C0-D46F-4F85-9754-F9E5E11374A6"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "512EE3A8-A590-4501-9A94-5D4B268D6138"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}