fbdev: of: display_timing: fix refcount leak in of_get_display_timings()

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Summary

CVECVE-2026-43264
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-06 12:16:47 UTC
Updated2026-05-08 20:33:27 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: fbdev: of: display_timing: fix refcount leak in of_get_display_timings() of_parse_phandle() returns a device_node with refcount incremented, which is stored in 'entry' and then copied to 'native_mode'. When the error paths at lines 184 or 192 jump to 'entryfail', native_mode's refcount is not decremented, causing a refcount leak. Fix this by changing the goto target from 'entryfail' to 'timingfail', which properly calls of_node_put(native_mode) before cleanup.

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

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 cc3f414cf2e404130584b63d373161ba6fd24bc2 20881ad42e651c69d89eb38a2042838187900fd6 git Not specified
CNA Linux Linux affected cc3f414cf2e404130584b63d373161ba6fd24bc2 b5bdcc5afbff845834d04d651773cb6b47db5dd3 git Not specified
CNA Linux Linux affected cc3f414cf2e404130584b63d373161ba6fd24bc2 2b22e4fe1273c24f405ed7903349c4bbd82b6368 git Not specified
CNA Linux Linux affected cc3f414cf2e404130584b63d373161ba6fd24bc2 3ed019654234edb8625c05d05e15d40f74e64f70 git Not specified
CNA Linux Linux affected cc3f414cf2e404130584b63d373161ba6fd24bc2 d6f34bbff07476c6abb8672c89d217824871c5ed git Not specified
CNA Linux Linux affected cc3f414cf2e404130584b63d373161ba6fd24bc2 69290f2d3999c5fa1a7f5d5593cfc5461fa3ee64 git Not specified
CNA Linux Linux affected cc3f414cf2e404130584b63d373161ba6fd24bc2 c5734f9030a8b1e13868d1641b5163d8e659306e git Not specified
CNA Linux Linux affected cc3f414cf2e404130584b63d373161ba6fd24bc2 eacf9840ae1285a1ef47eb0ce16d786e542bd4d7 git Not specified
CNA Linux Linux affected 3.9 Not specified
CNA Linux Linux unaffected 3.9 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 6.18.16 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.6 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/2b22e4fe1273c24f405ed7903349c4bbd82b6368 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/c5734f9030a8b1e13868d1641b5163d8e659306e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/eacf9840ae1285a1ef47eb0ce16d786e542bd4d7 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/69290f2d3999c5fa1a7f5d5593cfc5461fa3ee64 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/b5bdcc5afbff845834d04d651773cb6b47db5dd3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/20881ad42e651c69d89eb38a2042838187900fd6 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/d6f34bbff07476c6abb8672c89d217824871c5ed 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/3ed019654234edb8625c05d05e15d40f74e64f70 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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