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| author | Murray McAllister <murray.mcallister@insomniasec.com> | 2017-03-27 11:15:12 +0200 |
|---|---|---|
| committer | Mister Oyster <oysterized@gmail.com> | 2017-07-04 12:11:17 +0200 |
| commit | b2b98051a7d8b2ba71924ce7f488c9c559b91722 (patch) | |
| tree | 3aaf7fd075ba9bb5bb6f0d5de46d71cf4d68c571 /include/linux/timer.h | |
| parent | 582bafb3b06c80a4ae10a9512d31fb993502ad17 (diff) | |
drm/vmwgfx: avoid calling vzalloc with a 0 size in vmw_get_cap_3d_ioctl()
commit 63774069d9527a1aeaa4aa20e929ef5e8e9ecc38 upstream.
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.
Signed-off-by: Murray McAllister <murray.mcallister@insomniasec.com>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Willy Tarreau <w@1wt.eu>
Diffstat (limited to 'include/linux/timer.h')
0 files changed, 0 insertions, 0 deletions