]> git.proxmox.com Git - mirror_ubuntu-eoan-kernel.git/commit
drm/nouveau: fix notifier memory corruption bug
authorMarcin Slusarz <marcin.slusarz@gmail.com>
Tue, 19 Apr 2011 21:50:48 +0000 (23:50 +0200)
committerBen Skeggs <bskeggs@redhat.com>
Tue, 19 Apr 2011 22:51:31 +0000 (08:51 +1000)
commita18d89ca026140eb8ac4459bf70a01c571dd9a32
tree8268eb40c5617340c34e4b6486106c8191c4e049
parent11dea1a2144f24216551fbeddacbde0980ae8a55
drm/nouveau: fix notifier memory corruption bug

nouveau_bo_wr32 expects offset to be in words, but we pass value in bytes,
so after commit 73412c3854c877e5f37ad944ee8977addde4d35a ("drm/nouveau: allocate
kernel's notifier object at end of block") we started to overwrite some memory
after notifier buffer object (previously m2mf_ntfy was always 0, so it didn't
matter it was a value in bytes).

Reported-by: Dominik Brodowski <linux@dominikbrodowski.net>
Reported-by: Nigel Cunningham <lkml@nigelcunningham.com.au>
Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Pekka Paalanen <pq@iki.fi>
Cc: stable@kernel.org [2.6.38]
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
drivers/gpu/drm/nouveau/nouveau_fbcon.c