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| author | Vegard Nossum <vegard.nossum@oracle.com> | 2013-09-05 13:00:14 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2013-11-08 09:10:27 -0700 |
| commit | ea5ec76d76da9279d12027c1828544c5ccbe7932 (patch) | |
| tree | 0ce18ebc97696b04df2be341238b977c588b2fb5 /drivers/block/loop.c | |
| parent | c47206e25f28232ff979994c32758c82841d81cd (diff) | |
| download | linux-ea5ec76d76da9279d12027c1828544c5ccbe7932.tar.gz linux-ea5ec76d76da9279d12027c1828544c5ccbe7932.tar.bz2 linux-ea5ec76d76da9279d12027c1828544c5ccbe7932.zip | |
xen/blkback: fix reference counting
If the permission check fails, we drop a reference to the blkif without
having taken it in the first place. The bug was introduced in commit
604c499cbbcc3d5fe5fb8d53306aa0fae1990109 (xen/blkback: Check device
permissions before allowing OP_DISCARD).
Cc: stable@vger.kernel.org
Cc: Jan Beulich <JBeulich@suse.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/block/loop.c')
0 files changed, 0 insertions, 0 deletions