| commit | ea5ec76d76da9279d12027c1828544c5ccbe7932 | |
| author | Vegard Nossum <vegard.nossum@oracle.com> | |
| Thu, 5 Sep 2013 11:00:14 +0000 (5 13:00 +0200) | ||
| committer | Jens Axboe <axboe@kernel.dk> | |
| Fri, 8 Nov 2013 16:10:27 +0000 (8 09:10 -0700) | ||
| tree | 0ce18ebc97696b04df2be341238b977c588b2fb5 | treesnapshot (tar.gz zip) |
| parent | c47206e25f28232ff979994c32758c82841d81cd | commitdiff |
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>
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>
| drivers/block/xen-blkback/blkback.c | diffblobblamehistory |