Linux Kernel Vulnerability in Amdkfd Debug Trap Handling

CVE-2026-98910

What is CVE-2026-98910?

A vulnerability in the Linux kernel affects the Amdkfd component, where a failure during the copy_to_user operation can lead to an inconsistent state due to improper handling of debug trap activation. When kfd_dbg_trap_enable() encounters an error, it fails to properly deactivate the trap and unwind state changes, resulting in potential reference count imbalances and unintended behaviors in the debug event handling. This oversight may lead to instability or security issues in system operations, particularly in user space interactions.

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