Martin Radev 6249220e09 gpu: nvgpu: fix nvgpu_css_allocate_perfmon_ids ...

This patch fixes nvgpu_css_allocate_perfmon_ids which
leads to a buffer overflow if the allocation of perfmon
ids does not succeed.

If the allocation of perfmon ids cannot be satisfied,
bitmap_find... would return CSS_MAX_PERFMON_IDS and
nvgpu_bitmap_set would still be called with start after
the bitmap array. This results into a buffer overflow.

Bug 3814963

Change-Id: I4caff36cf0c920b4445e1841d16ba2b4c3d19aaa
Signed-off-by: Martin Radev <mradev@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2786747
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: Prateek Sethi <prsethi@nvidia.com>
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>

2022-10-05 20:13:27 -07:00

..

cyclestats_snapshot.c

gpu: nvgpu: fix nvgpu_css_allocate_perfmon_ids

2022-10-05 20:13:27 -07:00

perfbuf.c

gpu: nvgpu: subcontext add/remove support

2022-09-08 21:00:20 -07:00