]> git.proxmox.com Git - mirror_ubuntu-eoan-kernel.git/commit
block: Fix for_each_bvec()
authorMartin K. Petersen <martin.petersen@oracle.com>
Wed, 9 Apr 2014 02:43:43 +0000 (22:43 -0400)
committerJens Axboe <axboe@fb.com>
Wed, 9 Apr 2014 14:00:01 +0000 (08:00 -0600)
commitb7aa84d9cb9f26da1a9312c3e39dbd1a3c25a426
tree583b4d4a8cab1128b26c12e61a6cd598fcc268de
parent44bd70c347c466616e430b044c49d48fac29789d
block: Fix for_each_bvec()

Commit 4550dd6c6b062 introduced for_each_bvec() which iterates over each
bvec attached to a bio or bip. However, the macro fails to check bi_size
before dereferencing which can lead to crashes while counting/mapping
integrity scatterlist segments.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Cc: Kent Overstreet <kmo@daterainc.com>
Cc: Nicholas Bellinger <nab@linux-iscsi.org>
Cc: <stable@vger.kernel.org> # v3.14+
Signed-off-by: Jens Axboe <axboe@fb.com>
include/linux/bio.h