drm/amdkfd: Check bounds in allocate_event_notification_slot

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The valid event ids go from 0 to KFD_SIGNAL_EVENT_LIMIT

allocate_event_notification_slot has an option to specify
an event id to allocate at, used by CRIU. We weren't checking
the bounds on that value.

Check them.

v2: Lower bounds check is unecessary because of idr_alloc
already rejecting negative numbers. Upper bounds check should
be KFD_SIGNAL_EVENT_LIMIT since the signal mode mappings might
not yet exist

Signed-off-by: David Francis <David.Francis@amd.com>
Reviewed-by: David Yat Sin <david.yatsin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 6853f1f6cb)
Cc: stable@vger.kernel.org

...

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David Francis 2026-05-21 09:18:59 -04:00 • committed by Alex Deucher

parent a88419af8d

commit bb52249fbb

1 changed files with 3 additions and 0 deletions

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drivers/gpu/drm/amd/amdkfd/kfd_events.c

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