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| author | Ezequiel Garcia <ezequiel@collabora.com> | 2020-04-27 18:44:05 -0300 |
|---|---|---|
| committer | Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com> | 2020-05-06 21:51:46 -0400 |
| commit | 0ea2ea42b31abc1141f2fd3911f952a97d401fcb (patch) | |
| tree | 47cd2b2a7c0892bbb040ea4914d758414d7bf263 /drivers/gpu/drm/ast | |
| parent | c27f0cc4d43a7f910e3cf779f44c470275604236 (diff) | |
| download | linux-0ea2ea42b31abc1141f2fd3911f952a97d401fcb.tar.gz linux-0ea2ea42b31abc1141f2fd3911f952a97d401fcb.tar.bz2 linux-0ea2ea42b31abc1141f2fd3911f952a97d401fcb.zip | |
drm/vkms: Hold gem object while still in-use
We need to keep the reference to the drm_gem_object
until the last access by vkms_dumb_create.
Therefore, the put the object after it is used.
This fixes a use-after-free issue reported by syzbot.
While here, change vkms_gem_create() symbol to static.
Reported-and-tested-by: syzbot+e3372a2afe1e7ef04bc7@syzkaller.appspotmail.com
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200427214405.13069-1-ezequiel@collabora.com
Diffstat (limited to 'drivers/gpu/drm/ast')
0 files changed, 0 insertions, 0 deletions