Commits
Bart Van Assche committed d1436e456b8
scsi: qla2xxx: Fix a NULL pointer dereference
BUG: KASAN: null-ptr-deref in qla24xx_handle_plogi_done_event+0x134/0x9f0 [qla2xxx]
Read of size 4 at addr 00000000000000a0 by task swapper/2/0
CPU: 2 PID: 0 Comm: swapper/2 Not tainted 5.2.0-dbg+ #1
Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
Call Trace:
<IRQ>
dump_stack+0x8a/0xd6
__kasan_report.cold+0x5/0x41
kasan_report+0x16/0x20
__asan_load4+0x7e/0x80
qla24xx_handle_plogi_done_event+0x134/0x9f0 [qla2xxx]
qla2x00_els_dcmd2_sp_done+0x15f/0x230 [qla2xxx]
qla24xx_els_ct_entry+0x3b3/0x610 [qla2xxx]
qla24xx_process_response_queue+0x514/0x10e0 [qla2xxx]
qla24xx_msix_rsp_q+0x80/0x100 [qla2xxx]
__handle_irq_event_percpu+0x72/0x450
handle_irq_event_percpu+0x74/0xf0
handle_irq_event+0x5e/0x8f
handle_edge_irq+0x13a/0x320
handle_irq+0x30/0x40
do_IRQ+0x91/0x190
common_interrupt+0xf/0xf
</IRQ>
RIP: 0010:default_idle+0x31/0x230
Fixes: 8777e4314d39 ("scsi: qla2xxx: Migrate NVME N2N handling into state machine") # v4.19.
Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>