CVE-2026-97422

drm/amdkfd: fix SMI event cross-process information leak

N/A
Published: September 24, 2026 at 04:03 PM UTC
Updated: October 21, 2026 at 01:21 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: fix SMI event cross-process information leak kfd_smi_ev_enabled() skips the suser privilege check when pid=0. PROCESS_START, PROCESS_END, and VMFAULT events are emitted with pid=0 while carrying another process's PID and command name, so any /dev/kfd user in the render group can monitor all GPU workloads. Pass the target process PID into kfd_smi_event_add() for these events so the existing per-client filter restricts delivery to the owning process or CAP_SYS_ADMIN subscribers.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

5.9938a0650aae6275ba8e924685836bdee2c6aa3db
Vendor states this is fixed in 5bb2dfa65d8da83e87b2a31c270bc567df69a5ca (fixed)
Vendor states this is fixed in 92a8dba246d371fe268280e5fd74b0955688e6df (fixed)
Vendor states this is fixed in 5.9 (unaffected)
Vendor states this is fixed in 6.12.114 (unaffected)
Vendor states this is fixed in 6.18.53 (unaffected)
Vendor states this is fixed in 6.6.160 (unaffected)
Vendor states this is fixed in 7.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

Quick Info

StatusRECEIVED

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