staging: media: ipu7: fix pm_runtime refcount leak in ipu7_resume()

Summary

CVECVE-2026-93143
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-17 17:18:09 UTC
Updated2026-09-17 17:18:09 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: staging: media: ipu7: fix pm_runtime refcount leak in ipu7_resume() ipu7_resume() calls pm_runtime_get_sync() before resuming the device. If the runtime PM resume fails, the usage count remains incremented, but the error path returns without dropping the reference. Use pm_runtime_resume_and_get() instead, which balances the usage count on failure and avoids the leak. Keep returning 0 on error, as resume callbacks should not propagate failures to the PM core, matching the behaviour of the ipu6 driver.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected b7fe4c0019b12d60ece3e99eeb0ccfd5a1d103e5 593fda71983b9c23c84a566b20c53dc402c6b376 git Not specified
CNA Linux Linux affected b7fe4c0019b12d60ece3e99eeb0ccfd5a1d103e5 437d6d15936db87485afabf7d52754b7b19cc787 git Not specified
CNA Linux Linux affected b7fe4c0019b12d60ece3e99eeb0ccfd5a1d103e5 b298b80814dd0fc3cb1c8c0e0082fc14fdb5fecf git Not specified
CNA Linux Linux affected 6.17 Not specified
CNA Linux Linux unaffected 6.17 semver Not specified
CNA Linux Linux unaffected 6.18.52 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.6 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/b298b80814dd0fc3cb1c8c0e0082fc14fdb5fecf 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/437d6d15936db87485afabf7d52754b7b19cc787 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/593fda71983b9c23c84a566b20c53dc402c6b376 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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