| commit | 63774069d9527a1aeaa4aa20e929ef5e8e9ecc38 | [log] [tgz] |
|---|---|---|
| author | Murray McAllister <murray.mcallister@insomniasec.com> | Mon Mar 27 11:15:12 2017 +0200 |
| committer | Thomas Hellstrom <thellstrom@vmware.com> | Thu Mar 30 11:43:37 2017 +0200 |
| tree | 45b99c756375c0db0953930cb52f7be1b2b814a2 | |
| parent | 36274ab8c596f1240c606bb514da329add2a1bcd [diff] |
drm/vmwgfx: avoid calling vzalloc with a 0 size in vmw_get_cap_3d_ioctl() In vmw_get_cap_3d_ioctl(), a user can supply 0 for a size that is used in vzalloc(). This eventually calls dump_stack() (in warn_alloc()), which can leak useful addresses to dmesg. Add check to avoid a size of 0. Cc: <stable@vger.kernel.org> Signed-off-by: Murray McAllister <murray.mcallister@insomniasec.com> Reviewed-by: Sinclair Yeh <syeh@vmware.com>