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(parent: 0897554) | patch
drm/nouveau/pm: Prevent overflow in nouveau_perf_init()
authorEmil Velikov <emil.l.velikov@gmail.com>
Sat, 11 Jun 2011 12:30:32 +0000 (13:30 +0100)
committerBen Skeggs <bskeggs@redhat.com>
Sat, 18 Jun 2011 04:38:38 +0000 (14:38 +1000)
commit2905544073f6ec235b44f624c66f52b61221a16c
tree87daa81b07538956e110e84631617be5c1bc5691tree | snapshot (tar.gz zip)
parent0897554cdd9de8a9f6f93d9ba27c7ebfae286158commit | diff
drm/nouveau/pm: Prevent overflow in nouveau_perf_init()

While parsing the perf table, there is no check if
the num of entries read from the vbios is less than
the currently allocated number.

In case of a buggy vbios this will cause overwriting
of kernel memory, causing aditional problems.

Add a simple check in order to prevent the case

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
drivers/gpu/drm/nouveau/nouveau_perf.c diff | blob | blame | history