media: nxp: imx8-isi: Add missing v4l2_subdev_cleanup() in crossbar and pipe

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Summary

CVECVE-2026-68220
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-10 13:20:10 UTC
Updated2026-08-10 13:20:10 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: media: nxp: imx8-isi: Add missing v4l2_subdev_cleanup() in crossbar and pipe Both mxc_isi_crossbar_init() and mxc_isi_pipe_init() call v4l2_subdev_init_finalize() which allocates the subdev active state, but neither mxc_isi_crossbar_cleanup() nor mxc_isi_pipe_cleanup() calls v4l2_subdev_cleanup() to free it. This causes a memory leak on every rmmod, reported by kmemleak: unreferenced object 0xffff0000d06fc800 (size 192): comm "(udev-worker)", pid 254, jiffies 4294913455 backtrace (crc 36eeae58): kmemleak_alloc+0x34/0x40 __kvmalloc_node_noprof+0x5f8/0x7d8 __v4l2_subdev_state_alloc+0x1fc/0x30c __v4l2_subdev_init_finalize+0x178/0x368 Add the missing v4l2_subdev_cleanup() calls before media_entity_cleanup() in both crossbar and pipe cleanup paths.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected cf21f328fcafacf4f96e7a30ef9dceede1076378 549dd1afce2cf79a826d1f9742effb4565d52871 git Not specified
CNA Linux Linux affected cf21f328fcafacf4f96e7a30ef9dceede1076378 f04ec98605420e7c2c1ad6d2f6fb26692d4f218a git Not specified
CNA Linux Linux affected cf21f328fcafacf4f96e7a30ef9dceede1076378 9e61258fbc3cfc053e4c2ed72254c2de76772354 git Not specified
CNA Linux Linux affected cf21f328fcafacf4f96e7a30ef9dceede1076378 9c5ddbabc31fda93a508d9b8f0c776a4a08e49f5 git Not specified
CNA Linux Linux affected cf21f328fcafacf4f96e7a30ef9dceede1076378 567418eedd25b3d86d489807682030b4b98b73d9 git Not specified
CNA Linux Linux affected 6.4 Not specified
CNA Linux Linux unaffected 6.4 semver Not specified
CNA Linux Linux unaffected 6.6.148 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.101 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.42 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.6 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/9c5ddbabc31fda93a508d9b8f0c776a4a08e49f5 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/567418eedd25b3d86d489807682030b4b98b73d9 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/549dd1afce2cf79a826d1f9742effb4565d52871 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/f04ec98605420e7c2c1ad6d2f6fb26692d4f218a 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/9e61258fbc3cfc053e4c2ed72254c2de76772354 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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