target: Add missing WRITE_SAME end-of-device sanity check
authorNicholas Bellinger <nab@linux-iscsi.org>
Fri, 13 Feb 2015 22:09:47 +0000 (22:09 +0000)
committerNicholas Bellinger <nab@linux-iscsi.org>
Sat, 14 Feb 2015 02:09:35 +0000 (02:09 +0000)
commit8e575c50a171f2579e367a7f778f86477dfdaf49
tree7fa13380825c8d2d811514f6ad8f865913aa2608
parent72859d91d93319c00a18c29f577e56bf73a8654a
target: Add missing WRITE_SAME end-of-device sanity check

This patch adds a check to sbc_setup_write_same() to verify
the incoming WRITE_SAME LBA + number of blocks does not exceed
past the end-of-device.

Also check for potential LBA wrap-around as well.

Reported-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Martin Petersen <martin.petersen@oracle.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: stable@vger.kernel.org # 3.8+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
drivers/target/target_core_sbc.c