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drm/amdkfd: Check bounds on CRIU restore event id

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The valid amdkfd event ids go from 0 to KFD_SIGNAL_EVENT_LIMIT - 1.

During CRIU restore, ensure that the provided event ids are
in that range.

v2: No need for lower bound check since idr_alloc rejects negative
inputs

v3: Also change error message to reflect new error condition

Reviewed-by: David Yat Sin <david.yatsin@amd.com>
Signed-off-by: David Francis <David.Francis@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 5c6c247992d4d9200e073b83f4ec6c703c096845)
This commit is contained in:
David Francis 2026-05-12 14:49:41 -04:00 committed by Alex Deucher
parent f0262c3a3f
commit 3888a656e8
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/amd/amdkfd/kfd_events.c
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@ -204,7 +204,7 @@ static int create_signal_event(struct file *devkfd, struct kfd_process *p,
ret = allocate_event_notification_slot(p, ev, restore_id);
if (ret) {
pr_warn("Signal event wasn't created because out of kernel memory\n");
pr_warn("Failed to create signal event notification slot\n");
return ret;
}