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| author | James Morris <jmorris@namei.org> | 2009-05-22 10:40:59 +0200 |
|---|---|---|
| committer | James Morris <jmorris@namei.org> | 2009-05-22 10:40:59 +0200 |
| commit | 2c9e703c618106f5383226fbb1f526cb11034f8a (patch) | |
| tree | 87d7548001ea82f655fede0640466fc16aabcdf7 /drivers/gpu/drm/drm_bufs.c | |
| parent | smack: do not beyond ARRAY_SIZE of data (diff) | |
| parent | Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jba... (diff) | |
| download | linux-2c9e703c618106f5383226fbb1f526cb11034f8a.tar.xz linux-2c9e703c618106f5383226fbb1f526cb11034f8a.zip | |
Merge branch 'master' into next
Conflicts:
fs/exec.c
Removed IMA changes (the IMA checks are now performed via may_open()).
Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'drivers/gpu/drm/drm_bufs.c')
| -rw-r--r-- | drivers/gpu/drm/drm_bufs.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_bufs.c b/drivers/gpu/drm/drm_bufs.c index 6d80d17f1e96..0411d912d82a 100644 --- a/drivers/gpu/drm/drm_bufs.c +++ b/drivers/gpu/drm/drm_bufs.c @@ -170,6 +170,14 @@ static int drm_addmap_core(struct drm_device * dev, resource_size_t offset, } DRM_DEBUG("offset = 0x%08llx, size = 0x%08lx, type = %d\n", (unsigned long long)map->offset, map->size, map->type); + + /* page-align _DRM_SHM maps. They are allocated here so there is no security + * hole created by that and it works around various broken drivers that use + * a non-aligned quantity to map the SAREA. --BenH + */ + if (map->type == _DRM_SHM) + map->size = PAGE_ALIGN(map->size); + if ((map->offset & (~(resource_size_t)PAGE_MASK)) || (map->size & (~PAGE_MASK))) { drm_free(map, sizeof(*map), DRM_MEM_MAPS); return -EINVAL; |