pinctrl: single: fix refcount leak in pcs_add_gpio_func()

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-45868
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-27 14:17:00 UTC
Updated2026-06-25 21:06:34 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: pinctrl: single: fix refcount leak in pcs_add_gpio_func() of_parse_phandle_with_args() returns a device_node pointer with refcount incremented in gpiospec.np. The loop iterates through all phandles but never releases the reference, causing a refcount leak on each iteration. Add of_node_put() calls to release the reference after extracting the needed arguments and on the error path when devm_kzalloc() fails. This bug was detected by our static analysis tool and verified by my code review.

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: 0.000240000 probability, percentile 0.073320000 (date 2026-06-01)

Problem Types: NVD-CWE-Other

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected a1a277eb76b3507df7c41774048a644aa4dfd096 191bfd5710d6a7f48ba4315d8d3e908dcc15243c git Not specified
CNA Linux Linux affected a1a277eb76b3507df7c41774048a644aa4dfd096 3e3b28bb0b6ddc521a4fdd1c1ba0d35017a0796b git Not specified
CNA Linux Linux affected a1a277eb76b3507df7c41774048a644aa4dfd096 456a60d06c09a92680dc35fabca68024badcc28e git Not specified
CNA Linux Linux affected a1a277eb76b3507df7c41774048a644aa4dfd096 99cc7352156c65201c675f750e0e77c4c73d93f5 git Not specified
CNA Linux Linux affected a1a277eb76b3507df7c41774048a644aa4dfd096 7814b1431848854b56717086e2b61bea3c59753d git Not specified
CNA Linux Linux affected a1a277eb76b3507df7c41774048a644aa4dfd096 e2e367e56bacb93ce5ac73f0b3297d5c83d38dd4 git Not specified
CNA Linux Linux affected a1a277eb76b3507df7c41774048a644aa4dfd096 5b9e84d27e310f22c4ba45fedbc4f5baf43dd823 git Not specified
CNA Linux Linux affected a1a277eb76b3507df7c41774048a644aa4dfd096 353353309b0f7afa407df29e455f9d15b5acc296 git Not specified
CNA Linux Linux affected 3.10 Not specified
CNA Linux Linux unaffected 3.10 semver Not specified
CNA Linux Linux unaffected 5.10.252 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.202 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.165 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.128 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.75 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.14 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.4 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/353353309b0f7afa407df29e455f9d15b5acc296 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/99cc7352156c65201c675f750e0e77c4c73d93f5 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/5b9e84d27e310f22c4ba45fedbc4f5baf43dd823 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/e2e367e56bacb93ce5ac73f0b3297d5c83d38dd4 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/7814b1431848854b56717086e2b61bea3c59753d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/191bfd5710d6a7f48ba4315d8d3e908dcc15243c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/3e3b28bb0b6ddc521a4fdd1c1ba0d35017a0796b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/456a60d06c09a92680dc35fabca68024badcc28e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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