drm/amdkfd: Unwind debug trap enable on copy_to_user failure

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-98910
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-23 12:18:25 UTC
Updated2026-10-23 12:18:25 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Unwind debug trap enable on copy_to_user failure If kfd_dbg_trap_enable() fails while copying runtime_info to userspace, it had already activated the trap, set debug_trap_enabled, taken an extra process reference, and opened the debug event file. Return -EFAULT without unwinding that state, leaving inconsistent trap state and a refcount imbalance that could break later DISABLE/ENABLE. On copy_to_user failure, deactivate the trap and undo the rest of the enable setup before returning.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 641be20110cdfb6d921605adb42a764a0fccac54 git Not specified
CNA Linux Linux affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 656a40bdc20def58790b8512e6000195436d8855 git Not specified
CNA Linux Linux affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 1b39f46eec2f907417d4955bb88434170f94a8d8 git Not specified
CNA Linux Linux affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 01112e241e37f9ac98b6f418d93ce2e0b87b7ee0 git Not specified
CNA Linux Linux affected 6.6.158 semver Not specified
CNA Linux Linux affected 6.12.111 semver Not specified
CNA Linux Linux affected 6.18.53 semver Not specified
CNA Linux Linux unaffected 6.6.158 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.111 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.53 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/01112e241e37f9ac98b6f418d93ce2e0b87b7ee0 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/656a40bdc20def58790b8512e6000195436d8855 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/1b39f46eec2f907417d4955bb88434170f94a8d8 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/641be20110cdfb6d921605adb42a764a0fccac54 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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