------------[ cut here ]------------ WARNING: block/blk-mq.c:2120 at blk_mq_dispatch_rq_list+0x960/0x13a8 block/blk-mq.c:2120, CPU#1: kworker/1:0H/25 Modules linked in: CPU: 1 UID: 0 PID: 25 Comm: kworker/1:0H Tainted: G L syzkaller #0 PREEMPT Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 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 : ffff80008f9f77e0 x29: ffff80008f9f78c0 x28: 0000000000000000 x27: ffff0000c861a080 x26: 1fffe00019193402 x25: ffff0000c8c9a048 x24: ffff0000c861a000 x23: dfff800000000000 x22: ffff0000c8c9a010 x21: ffff80008f9f7a48 x20: ffff80008f9f7a40 x19: ffff0000c861a148 x18: 1fffe000349fbc28 x17: 0000000000000003 x16: ffff800089797000 x15: ffff8000827c052c x14: 0000000000000001 x13: 0000000000000002 x12: 0000000000000000 x11: 0000000000000000 x10: ffff700011f3ef12 x9 : 0000000000000000 x8 : 0000000000000000 x7 : 0000000000000000 x6 : ffff8000817aa500 x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000010 x2 : 0000000000000000 x1 : ffff0000c1b7bb00 x0 : 0000000000000000 dump_backtrace(regs = 00000000b8821a98 tsk = 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: 4278 hardirqs last enabled at (4277): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:219 [inline] hardirqs last enabled at (4277): [] _raw_spin_unlock_irq+0x30/0x80 kernel/locking/spinlock.c:229 hardirqs last disabled at (4278): [] __schedule+0x2f8/0x2b00 kernel/sched/core.c:7137 softirqs last enabled at (3222): [] softirq_handle_end kernel/softirq.c:491 [inline] softirqs last enabled at (3222): [] handle_softirqs+0xb2c/0xcbc kernel/softirq.c:673 softirqs last disabled at (3079): [] __do_softirq+0x14/0x20 kernel/softirq.c:679 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: block/blk.h:703 at req_ref_put_and_test block/blk.h:703 [inline], CPU#1: kworker/1:0H/25 WARNING: block/blk.h:703 at blk_mq_free_request+0x190/0x210 block/blk-mq.c:842, CPU#1: kworker/1:0H/25 Modules linked in: CPU: 1 UID: 0 PID: 25 Comm: kworker/1:0H Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 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 : ffff80008f9f7730 x29: ffff80008f9f7730 x28: ffff700011f3ef0c x27: ffff0000c8c9a000 x26: ffff0000c1b7bb00 x25: 1fffe00019193403 x24: 1fffe00019193420 x23: dfff800000000000 x22: dfff800000000000 x21: ffff0000c8c9a09c x20: 000000000000007f x19: ffff0000c8c9a000 x18: 1fffe000349fbc28 x17: 0000000000000003 x16: ffff800089797000 x15: ffff8000827c052c x14: 0000000000000001 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: ffff600019193414 x9 : 0000000000000000 x8 : 0000000000000000 x7 : 0000000000000000 x6 : ffff8000817a6d70 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800081782318 x2 : 000000000000007f x1 : ffff0000c1b7bb00 x0 : 0000000000000000 dump_backtrace(regs = 000000001ffc18a5 tsk = 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: 4278 hardirqs last enabled at (4277): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:219 [inline] hardirqs last enabled at (4277): [] _raw_spin_unlock_irq+0x30/0x80 kernel/locking/spinlock.c:229 hardirqs last disabled at (4278): [] __schedule+0x2f8/0x2b00 kernel/sched/core.c:7137 softirqs last enabled at (3222): [] softirq_handle_end kernel/softirq.c:491 [inline] softirqs last enabled at (3222): [] handle_softirqs+0xb2c/0xcbc kernel/softirq.c:673 softirqs last disabled at (3079): [] __do_softirq+0x14/0x20 kernel/softirq.c:679 ---[ end trace 0000000000000000 ]---