This is a note to let you know that I've just added the patch titled scsi: qla2xxx: Fix crash in qla2xxx_mqueuecommand() to the 5.11-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: scsi-qla2xxx-fix-crash-in-qla2xxx_mqueuecommand.patch and it can be found in the queue-5.11 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 6641df81ab799f28a5d564f860233dd26cca0d93 Mon Sep 17 00:00:00 2001 From: Arun Easi <aeasi@xxxxxxxxxxx> Date: Mon, 29 Mar 2021 01:52:23 -0700 Subject: scsi: qla2xxx: Fix crash in qla2xxx_mqueuecommand() From: Arun Easi <aeasi@xxxxxxxxxxx> commit 6641df81ab799f28a5d564f860233dd26cca0d93 upstream. RIP: 0010:kmem_cache_free+0xfa/0x1b0 Call Trace: qla2xxx_mqueuecommand+0x2b5/0x2c0 [qla2xxx] scsi_queue_rq+0x5e2/0xa40 __blk_mq_try_issue_directly+0x128/0x1d0 blk_mq_request_issue_directly+0x4e/0xb0 Fix incorrect call to free srb in qla2xxx_mqueuecommand(), as srb is now allocated by upper layers. This fixes smatch warning of srb unintended free. Link: https://lore.kernel.org/r/20210329085229.4367-7-njavali@xxxxxxxxxxx Fixes: af2a0c51b120 ("scsi: qla2xxx: Fix SRB leak on switch command timeout") Cc: stable@xxxxxxxxxxxxxxx # 5.5 Reported-by: Laurence Oberman <loberman@xxxxxxxxxx> Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx> Reviewed-by: Himanshu Madhani <himanshu.madhani@xxxxxxxxxx> Signed-off-by: Arun Easi <aeasi@xxxxxxxxxxx> Signed-off-by: Nilesh Javali <njavali@xxxxxxxxxxx> Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/scsi/qla2xxx/qla_os.c | 7 ------- 1 file changed, 7 deletions(-) --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -1008,8 +1008,6 @@ qla2xxx_mqueuecommand(struct Scsi_Host * if (rval != QLA_SUCCESS) { ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x3078, "Start scsi failed rval=%d for cmd=%p.\n", rval, cmd); - if (rval == QLA_INTERFACE_ERROR) - goto qc24_free_sp_fail_command; goto qc24_host_busy_free_sp; } @@ -1021,11 +1019,6 @@ qc24_host_busy_free_sp: qc24_target_busy: return SCSI_MLQUEUE_TARGET_BUSY; -qc24_free_sp_fail_command: - sp->free(sp); - CMD_SP(cmd) = NULL; - qla2xxx_rel_qpair_sp(sp->qpair, sp); - qc24_fail_command: cmd->scsi_done(cmd); Patches currently in stable-queue which might be from aeasi@xxxxxxxxxxx are queue-5.11/scsi-qla2xxx-fix-crash-in-qla2xxx_mqueuecommand.patch