drm/msm: Only fini scheduler after successful init

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Summary

CVECVE-2026-93058
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-17 17:17:59 UTC
Updated2026-09-17 17:17:59 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: drm/msm: Only fini scheduler after successful init msm_ringbuffer_new() destroys a partially initialized ring through msm_ringbuffer_destroy() when an allocation or scheduler setup step fails. If drm_sched_init() fails before it finishes initializing the scheduler, the failure path still calls drm_sched_fini(). That teardown path assumes the scheduler work items, lists, and workqueue state were initialized. Track successful scheduler initialization and call drm_sched_fini() only after drm_sched_init() returned 0. This issue was found by a static analysis checker and confirmed by manual source review. Patchwork: https://patchwork.freedesktop.org/patch/738905/

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 1d8a5ca436ee4a28eec14cb813f790f7cdeeee19 d43e1bbfd43458b9242806eec77ea3b032134baf git Not specified
CNA Linux Linux affected 1d8a5ca436ee4a28eec14cb813f790f7cdeeee19 09b360eb6ce345996a30fad8c86e9df80f41cd7e git Not specified
CNA Linux Linux affected 1d8a5ca436ee4a28eec14cb813f790f7cdeeee19 e2332abed2a4d3caa59052095dc16e4ce44791ea git Not specified
CNA Linux Linux affected 5.15 Not specified
CNA Linux Linux unaffected 5.15 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/e2332abed2a4d3caa59052095dc16e4ce44791ea 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/d43e1bbfd43458b9242806eec77ea3b032134baf 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/09b360eb6ce345996a30fad8c86e9df80f41cd7e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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