CVEvulnerability
CVE-2026-98910
- Status
- Received
- Published
- 2026-10-23
- Last modified
- 2026-10-26
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Description
In 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.
References
- https://git.kernel.org/stable/c/01112e241e37f9ac98b6f418d93ce2e0b87b7ee0 git.kernel.org
- https://git.kernel.org/stable/c/1b39f46eec2f907417d4955bb88434170f94a8d8 git.kernel.org
- https://git.kernel.org/stable/c/641be20110cdfb6d921605adb42a764a0fccac54 git.kernel.org
- https://git.kernel.org/stable/c/656a40bdc20def58790b8512e6000195436d8855 git.kernel.org