pinctrl: pinconf-generic: Fix memory leak in pinconf_generic_parse_dt_config()

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Summary

CVECVE-2026-23337
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-03-25 11:16:31 UTC
Updated2026-04-23 21:17:34 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: pinctrl: pinconf-generic: Fix memory leak in pinconf_generic_parse_dt_config() In pinconf_generic_parse_dt_config(), if parse_dt_cfg() fails, it returns directly. This bypasses the cleanup logic and results in a memory leak of the cfg buffer. Fix this by jumping to the out label on failure, ensuring kfree(cfg) is called before returning.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.000140000 probability, percentile 0.028540000 (date 2026-04-25)

Problem Types: CWE-401

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All
Operating System Linux Linux Kernel 6.19 - All All
Operating System Linux Linux Kernel 7.0 rc1 All All
Operating System Linux Linux Kernel 7.0 rc2 All All
Operating System Linux Linux Kernel 7.0 rc3 All All
Operating System Linux Linux Kernel 7.0 rc4 All All
Operating System Linux Linux Kernel 7.0 rc5 All All
Operating System Linux Linux Kernel 7.0 rc6 All All
Operating System Linux Linux Kernel 7.0 rc7 All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 90a18c512884adb49ddc2fb30e94594169aae808 63ee429780a5d43b5b4406c6128109b0f47cf2f1 git Not specified
CNA Linux Linux affected 90a18c512884adb49ddc2fb30e94594169aae808 7a648d598cb8e8c62af3f0e020a25820a3f3a9a7 git Not specified
CNA Linux Linux affected 6.19 Not specified
CNA Linux Linux unaffected 6.19 semver Not specified
CNA Linux Linux unaffected 6.19.7 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/63ee429780a5d43b5b4406c6128109b0f47cf2f1 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/7a648d598cb8e8c62af3f0e020a25820a3f3a9a7 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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