reset: gpio: fix double free in reset_add_gpio_aux_device() error path

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Summary

CVECVE-2026-31745
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-01 15:16:37 UTC
Updated2026-05-07 19:31:28 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: reset: gpio: fix double free in reset_add_gpio_aux_device() error path When __auxiliary_device_add() fails, reset_add_gpio_aux_device() calls auxiliary_device_uninit(adev). The device release callback reset_gpio_aux_device_release() frees adev, but the current error path then calls kfree(adev) again, causing a double free. Keep kfree(adev) for the auxiliary_device_init() failure path, but avoid freeing adev after auxiliary_device_uninit().

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from [email protected]

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

EPSS: 0.000150000 probability, percentile 0.029500000 (date 2026-05-12)

Problem Types: CWE-415

CVSS v3.1 Breakdown

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

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All 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 5fc4e4cf7a2268b5f73700fd1e8d02159f2417d8 1de465753220deb41569cf2add87bbb0673731db git Not specified
CNA Linux Linux affected 5fc4e4cf7a2268b5f73700fd1e8d02159f2417d8 fbffb8c7c7bb4d38e9f65e0bee446685011de5d8 git Not specified
CNA Linux Linux affected 6.19 Not specified
CNA Linux Linux unaffected 6.19 semver Not specified
CNA Linux Linux unaffected 6.19.12 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/1de465753220deb41569cf2add87bbb0673731db 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/fbffb8c7c7bb4d38e9f65e0bee446685011de5d8 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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