media: iris: Fix use-after-free in iris_release_internal_buffers()

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Summary

CVECVE-2026-46240
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-28 10:16:39 UTC
Updated2026-05-28 13:44:01 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: media: iris: Fix use-after-free in iris_release_internal_buffers() The recent change in commit 1dabf00ee206 ("media: iris: gen1: Destroy internal buffers after FW releases") introduced a regression where session_release_buf() may free the buffer. The caller, iris_release_internal_buffers(), continued to access `buffer` after the call, leading to a potential use-after-free. Fix this by setting BUF_ATTR_PENDING_RELEASE before calling session_release_buf(), and reverting the flag if the call fails. This ensures no dereference occurs after potential freeing.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 7cde76db8883ec8a3d1456068079ecadbfb15ca5 dd24998a4a4016fb9921916024399bd80f0d45c6 git Not specified
CNA Linux Linux affected 1dabf00ee206eceb0f08a1fe5d1ce635f9064338 18c64439f249859b6140f7bf8bcf95c8ed841f28 git Not specified
CNA Linux Linux affected 1dabf00ee206eceb0f08a1fe5d1ce635f9064338 f27cfdcfc916bb59297825805f4c3499f89f9e76 git Not specified
CNA Linux Linux affected d4457f23ac0130240053a34be663f0fade3bb371 git Not specified
CNA Linux Linux affected 6.18.16 6.18.32 semver Not specified
CNA Linux Linux affected 6.19.6 6.20 semver Not specified
CNA Linux Linux affected 7.0 Not specified
CNA Linux Linux unaffected 7.0 semver Not specified
CNA Linux Linux unaffected 6.18.32 6.18.* semver Not specified
CNA Linux Linux unaffected 7.0.9 7.0.* semver Not specified
CNA Linux Linux unaffected 7.1-rc3 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/f27cfdcfc916bb59297825805f4c3499f89f9e76 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/dd24998a4a4016fb9921916024399bd80f0d45c6 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/18c64439f249859b6140f7bf8bcf95c8ed841f28 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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