Linux Kernel KFD_IOC_DBG_TRAP_DISABLE Auth Bypass in amdkfd
CVE-2026-80703 Published on August 28, 2026
drm/amdkfd: Fix missing authorization check in KFD_IOC_DBG_TRAP_DISABLE
In the Linux kernel, the following vulnerability has been resolved:
drm/amdkfd: Fix missing authorization check in KFD_IOC_DBG_TRAP_DISABLE
Prevent unauthorized termination of active GPU debug sessions.
Previously, users with /dev/kfd access could terminate another process's
debug session without proper ownership or ptrace authorization.
(cherry picked from commit 4db4c5ffd5585b72622ecf6ffedf2da258ee23f5)
Products Associated with CVE-2026-80703
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Affected Versions
Linux:- Version 0ab2d7532b05a3e7c06fd3b0c8bd6b46c1dfb508 and below ce813614f63b020a826071276a92f2cfae7cba79 is affected.
- Version 0ab2d7532b05a3e7c06fd3b0c8bd6b46c1dfb508 and below b8c05061997408bf81759f2dd31cd5f66771d15f is affected.
- Version 0ab2d7532b05a3e7c06fd3b0c8bd6b46c1dfb508 and below 9e52212aff8ed1fd9087728f61243ce3efd9d0ac is affected.
- Version 0ab2d7532b05a3e7c06fd3b0c8bd6b46c1dfb508 and below 4070909ac042f44654aac72f7986ea550c96f591 is affected.
- Version 0ab2d7532b05a3e7c06fd3b0c8bd6b46c1dfb508 and below 99b2fe4f19e3be0a8d0a0b5ea98d855970889653 is affected.
- Version 6.5 is affected.
- Before 6.5 is unaffected.
- Version 6.6.151, <= 6.6.* is unaffected.
- Version 6.12.103, <= 6.12.* is unaffected.
- Version 6.18.44, <= 6.18.* is unaffected.
- Version 7.1.8, <= 7.1.* is unaffected.
- Version 7.2, <= * is unaffected.