diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2016-12-16 13:42:06 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-01-09 08:07:53 +0100 |
| commit | d85727365859108cbcf832c2b3c38358ddc7638b (patch) | |
| tree | 2c30a467ab254d1e2aae3e405d1ac3c6d1de05a9 /block/blk-sysfs.c | |
| parent | 7fb5a936457dff3616644d1725f28002048819f7 (diff) | |
sg_write()/bsg_write() is not fit to be called under KERNEL_DS
commit 128394eff343fc6d2f32172f03e24829539c5835 upstream.
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.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'block/blk-sysfs.c')
0 files changed, 0 insertions, 0 deletions