------------[ cut here ]------------
WARNING: block/blk-mq.c:2120 at blk_mq_dispatch_rq_list+0x960/0x13a8 block/blk-mq.c:2120, CPU#0: kworker/0:1H/4387
Modules linked in:
CPU: 0 UID: 0 PID: 4387 Comm: kworker/0:1H Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026
Workqueue: kblockd blk_mq_run_work_fn
pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : blk_mq_dispatch_rq_list+0x960/0x13a8 block/blk-mq.c:2120
lr : blk_mq_dispatch_rq_list+0x960/0x13a8 block/blk-mq.c:2120
sp : ffff8000954f77e0
x29: ffff8000954f78c0 x28: 0000000000000000 x27: ffff0000c905a880
x26: 1fffe00019255302 x25: ffff0000c92a9848 x24: ffff0000c905a800
x23: dfff800000000000 x22: ffff0000c92a9810 x21: ffff8000954f7a48
x20: ffff8000954f7a40 x19: ffff0000c905a948 x18: 00000000ffffffff
x17: 0000000000000003 x16: ffff800089797000 x15: ffff80008b44b000
x14: ffff80008bc832b0 x13: 0000000000000002 x12: 0000000000000000
x11: 0000000000000000 x10: ffff700012a9ef12 x9 : 0000000000000000
x8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000000000
x5 : ffff80008b7847e0 x4 : 0000000000000000 x3 : 0000000000000010
x2 : 0000000000000000 x1 : ffff0000c5a83b00 x0 : 0000000000000000
Call trace:
 blk_mq_dispatch_rq_list+0x960/0x13a8 block/blk-mq.c:2120 (P)
 __blk_mq_sched_dispatch_requests+0x250/0x10e8 block/blk-mq-sched.c:299
 blk_mq_sched_dispatch_requests+0xa8/0x158 block/blk-mq-sched.c:329
 blk_mq_run_work_fn+0x214/0x2e4 block/blk-mq.c:2545
 process_one_work kernel/workqueue.c:3396 [inline]
 process_scheduled_works+0x91c/0x1250 kernel/workqueue.c:3479
 worker_thread+0x798/0xbd0 kernel/workqueue.c:3560
 kthread+0x304/0x3d4 kernel/kthread.c:436
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854
irq event stamp: 8580
hardirqs last  enabled at (8579): [<ffff80008689d7c4>] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:219 [inline]
hardirqs last  enabled at (8579): [<ffff80008689d7c4>] _raw_spin_unlock_irq+0x30/0x80 kernel/locking/spinlock.c:229
hardirqs last disabled at (8580): [<ffff8000868792bc>] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:483
softirqs last  enabled at (0): [<ffff8000802e93c0>] copy_process+0x12bc/0x34c4 kernel/fork.c:2260
softirqs last disabled at (0): [<0000000000000000>] 0x0
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
WARNING: block/blk.h:703 at req_ref_put_and_test block/blk.h:703 [inline], CPU#0: kworker/0:1H/4387
WARNING: block/blk.h:703 at blk_mq_free_request+0x190/0x210 block/blk-mq.c:842, CPU#0: kworker/0:1H/4387
Modules linked in:
CPU: 0 UID: 0 PID: 4387 Comm: kworker/0:1H Tainted: G        W           syzkaller #0 PREEMPT 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026
Workqueue: kblockd blk_mq_run_work_fn
pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : req_ref_put_and_test block/blk.h:703 [inline]
pc : blk_mq_free_request+0x190/0x210 block/blk-mq.c:842
lr : req_ref_put_and_test block/blk.h:703 [inline]
lr : blk_mq_free_request+0x190/0x210 block/blk-mq.c:842
sp : ffff8000954f7730
x29: ffff8000954f7730 x28: ffff700012a9ef0c x27: ffff0000c92a9800
x26: ffff0000c5a83b00 x25: 1fffe00019255303 x24: 1fffe00019255320
x23: dfff800000000000 x22: dfff800000000000 x21: ffff0000c92a989c
x20: 000000000000007f x19: ffff0000c92a9800 x18: 00000000ffffffff
x17: 0000000000000003 x16: ffff800089797000 x15: ffff80008b44b000
x14: 00000000001b2f37 x13: 0000000000000001 x12: 0000000000000000
x11: 0000000000000000 x10: ffff600019255314 x9 : 0000000000000000
x8 : 0000000000000000 x7 : ffff8000817a538c x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800081780934
x2 : 000000000000007f x1 : ffff0000c5a83b00 x0 : 0000000000000000
Call trace:
 req_ref_put_and_test block/blk.h:703 [inline] (P)
 blk_mq_free_request+0x190/0x210 block/blk-mq.c:842 (P)
 __blk_mq_end_request+0x32c/0x434 block/blk-mq.c:-1
 blk_mq_end_request+0x68/0x8c block/blk-mq.c:1162
 blk_mq_dispatch_rq_list+0x410/0x13a8 block/blk-mq.c:2142
 __blk_mq_sched_dispatch_requests+0x250/0x10e8 block/blk-mq-sched.c:299
 blk_mq_sched_dispatch_requests+0xa8/0x158 block/blk-mq-sched.c:329
 blk_mq_run_work_fn+0x214/0x2e4 block/blk-mq.c:2545
 process_one_work kernel/workqueue.c:3396 [inline]
 process_scheduled_works+0x91c/0x1250 kernel/workqueue.c:3479
 worker_thread+0x798/0xbd0 kernel/workqueue.c:3560
 kthread+0x304/0x3d4 kernel/kthread.c:436
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854
irq event stamp: 8846
hardirqs last  enabled at (8845): [<ffff800080541a04>] seqcount_lockdep_reader_access+0x7c/0xf8 include/linux/seqlock.h:75
hardirqs last disabled at (8846): [<ffff8000868792bc>] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:483
softirqs last  enabled at (8838): [<ffff80008030a6dc>] softirq_handle_end kernel/softirq.c:491 [inline]
softirqs last  enabled at (8838): [<ffff80008030a6dc>] handle_softirqs+0xb2c/0xcbc kernel/softirq.c:673
softirqs last disabled at (8583): [<ffff8000800203f0>] __do_softirq+0x14/0x20 kernel/softirq.c:679
---[ end trace 0000000000000000 ]---