| Date | Fri, 30 Mar 2012 12:49:55 -0700 | From | Greg KH <> | Subject | [ 090/175] target: fix use after free in target_report_luns |
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3.3-stable review patch. If anyone has any objections, please let me know.
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From: =?UTF-8?q?J=C3=B6rn=20Engel?= <joern@logfs.org>
commit 382436f8804fe1cb20b9a2a811a10eb2d8554721 upstream.
Fix possible NULL pointer dereference in target_report_luns failure path.
Signed-off-by: Joern Engel <joern@logfs.org> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/target/target_core_device.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/target/target_core_device.c +++ b/drivers/target/target_core_device.c @@ -695,12 +695,12 @@ int target_report_luns(struct se_task *s * See SPC3 r07, page 159. */ done: - transport_kunmap_data_sg(se_cmd); lun_count *= 8; buf[0] = ((lun_count >> 24) & 0xff); buf[1] = ((lun_count >> 16) & 0xff); buf[2] = ((lun_count >> 8) & 0xff); buf[3] = (lun_count & 0xff); + transport_kunmap_data_sg(se_cmd); se_task->task_scsi_status = GOOD; transport_complete_task(se_task, 1);
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