← WebKit — 2026-W37
514f90daafbe17b3c65289027c5060460e1bd8c1 Long running command buffers can hang the system
not a security fix
confidence 0.15
signal score 17.8
Source/WebGPU/
Classified as not security-relevant.
Triage note: Adds a 3-second GPU command-buffer watchdog (dispatch_after -> crashGPUProcess if !didComplete) and calls device->loseTheDevice before the fatal RELEASE_ASSERT_NOT_REACHED. Reliability/hang-watchdog and graceful device-loss handling, not a memory-safety fix.
This commit was flagged by the signal scorer and reviewed by AI (not a human). It is listed only so the triage is auditable; there is no root-cause analysis because this is not a vulnerability fix.
Triage note: Adds a 3-second GPU command-buffer watchdog (dispatch_after -> crashGPUProcess if !didComplete) and calls device->loseTheDevice before the fatal RELEASE_ASSERT_NOT_REACHED. Reliability/hang-watchdog and graceful device-loss handling, not a memory-safety fix.
This commit was flagged by the signal scorer and reviewed by AI (not a human). It is listed only so the triage is auditable; there is no root-cause analysis because this is not a vulnerability fix.
Structural signals: smartptr_member_added (+6.47), security_assert (+3.0), null_guard (+1.95), uaf_lifetime (+3.57), area:Source/WebGPU/ (+1.5), surgical (+1.3)
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