| commit | 128394eff343fc6d2f32172f03e24829539c5835 | [log] [tgz] |
|---|---|---|
| author | Al Viro <viro@zeniv.linux.org.uk> | Fri Dec 16 13:42:06 2016 -0500 |
| committer | Al Viro <viro@zeniv.linux.org.uk> | Thu Dec 22 23:03:42 2016 -0500 |
| tree | 025d426075681b9904895045929e322429b8a251 | |
| parent | f698cccbc89e33cda4795a375e47daaa3689485e [diff] |
sg_write()/bsg_write() is not fit to be called under KERNEL_DS Both damn things interpret userland pointers embedded into the payload; worse, they are actually traversing those. Leaving aside the bad API design, this is very much _not_ safe to call with KERNEL_DS. Bail out early if that happens. Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>