INFO: task syz-executor.1:5711 blocked for more than 143 seconds.
Not tainted 6.7.0-next-20240112-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:28464 pid:5711 tgid:5710 ppid:5100 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0xf15/0x5ce0 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0xe7/0x280 kernel/sched/core.c:6817
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6874
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
blk_trace_ioctl+0xc9/0x290 kernel/trace/blktrace.c:736
blkdev_ioctl+0x111/0x770 block/ioctl.c:625
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:871 [inline]
__se_sys_ioctl fs/ioctl.c:857 [inline]
__x64_sys_ioctl+0x193/0x220 fs/ioctl.c:857
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xd2/0x260 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f2d67a7cda9
RSP: 002b:00007f2d6887c0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f2d67babf80 RCX: 00007f2d67a7cda9
RDX: 00000000200001c0 RSI: 00000000c0481273 RDI: 0000000000000003
RBP: 00007f2d67ac947a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f2d67babf80 R15: 00007fff6176c838
INFO: task syz-executor.4:5716 blocked for more than 144 seconds.
Not tainted 6.7.0-next-20240112-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:28464 pid:5716 tgid:5713 ppid:5096 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0xf15/0x5ce0 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0xe7/0x280 kernel/sched/core.c:6817
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6874
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
blk_trace_ioctl+0xc9/0x290 kernel/trace/blktrace.c:736
blkdev_common_ioctl+0x15ae/0x1ce0 block/ioctl.c:565
blkdev_ioctl+0x247/0x770 block/ioctl.c:630
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:871 [inline]
__se_sys_ioctl fs/ioctl.c:857 [inline]
__x64_sys_ioctl+0x193/0x220 fs/ioctl.c:857
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xd2/0x260 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7fad9847cda9
RSP: 002b:00007fad991ad0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fad985abf80 RCX: 00007fad9847cda9
RDX: 0000000000000000 RSI: 0000000000001276 RDI: 0000000000000003
RBP: 00007fad984c947a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fad985abf80 R15: 00007ffea6aeeaf8
INFO: task syz-executor.4:5718 blocked for more than 145 seconds.
Not tainted 6.7.0-next-20240112-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:29536 pid:5718 tgid:5713 ppid:5096 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0xf15/0x5ce0 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0xe7/0x280 kernel/sched/core.c:6817
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6874
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
blk_trace_ioctl+0xc9/0x290 kernel/trace/blktrace.c:736
blkdev_ioctl+0x111/0x770 block/ioctl.c:625
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:871 [inline]
__se_sys_ioctl fs/ioctl.c:857 [inline]
__x64_sys_ioctl+0x193/0x220 fs/ioctl.c:857
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xd2/0x260 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7fad9847cda9
RSP: 002b:00007fad9918c0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fad985ac050 RCX: 00007fad9847cda9
RDX: 00000000200001c0 RSI: 00000000c0481273 RDI: 0000000000000003
RBP: 00007fad984c947a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007fad985ac050 R15: 00007ffea6aeeaf8
Showing all locks held in the system:
2 locks held by kworker/0:1/9:
#0: ffff8880b943ccd8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x29/0x130 kernel/sched/core.c:559
#1: ffff8880b9428a08 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x2d9/0x900 kernel/sched/psi.c:988
2 locks held by kworker/1:0/23:
1 lock held by khungtaskd/30:
#0: ffffffff8d7aeca0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
#0: ffffffff8d7aeca0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline]
#0: ffffffff8d7aeca0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6614
3 locks held by kworker/u4:7/1095:
3 locks held by udevd/4511:
2 locks held by getty/4814:
#0: ffff88802bfbc0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfc8/0x1490 drivers/tty/n_tty.c:2201
3 locks held by kworker/u5:3/5104:
#0: ffff88801ea1d538 ((wq_completion)hci7){+.+.}-{0:0}, at: process_one_work+0x78c/0x1600 kernel/workqueue.c:2608
#1: ffffc900040d7d80 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_one_work+0x7f6/0x1600 kernel/workqueue.c:2609
#2: ffff888046a31060 (&hdev->req_lock){+.+.}-{3:3}, at: hci_cmd_sync_work+0x170/0x410 net/bluetooth/hci_sync.c:305
3 locks held by kworker/u5:6/5115:
#0: ffff888030802938 ((wq_completion)hci8){+.+.}-{0:0}, at: process_one_work+0x78c/0x1600 kernel/workqueue.c:2608
#1: ffffc900040e7d80 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_one_work+0x7f6/0x1600 kernel/workqueue.c:2609
#2: ffff8881e07f1060 (&hdev->req_lock){+.+.}-{3:3}, at: hci_cmd_sync_work+0x170/0x410 net/bluetooth/hci_sync.c:305
2 locks held by kworker/1:5/5156:
#0: ffff888014c96938 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x78c/0x1600 kernel/workqueue.c:2608
#1: ffffc9000415fd80 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x7f6/0x1600 kernel/workqueue.c:2609
3 locks held by syz-executor.3/5664:
1 lock held by syz-executor.1/5711:
#0: ffff8880208f07e0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0xc9/0x290 kernel/trace/blktrace.c:736
1 lock held by syz-executor.4/5716:
#0: ffff8880208f07e0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0xc9/0x290 kernel/trace/blktrace.c:736
1 lock held by syz-executor.4/5718:
#0: ffff8880208f07e0 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0xc9/0x290 kernel/trace/blktrace.c:736
3 locks held by udevd/7354:
1 lock held by syz-executor.5/7662:
#0: ffffffff8d7ba3c0 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x48/0x6c0 kernel/rcu/tree.c:4032
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 30 Comm: khungtaskd Not tainted 6.7.0-next-20240112-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x27b/0x390 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x29c/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xf86/0x1210 kernel/hung_task.c:379
kthread+0x2c1/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:242
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 23 Comm: kworker/1:0 Not tainted 6.7.0-next-20240112-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Workqueue: events nsim_dev_trap_report_work
RIP: 0010:check_kcov_mode kernel/kcov.c:173 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x1c/0x60 kernel/kcov.c:207
Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 65 48 8b 15 24 a5 77 7e 65 8b 05 25 a5 77 7e a9 00 01 ff 00 48 8b 34 24 <74> 0f f6 c4 01 74 35 8b 82 fc 15 00 00 85 c0 74 2b 8b 82 d8 15 00
RSP: 0018:ffffc900001d7698 EFLAGS: 00000246
RAX: 0000000080000002 RBX: ffffc900001d7768 RCX: ffffffff813c0366
RDX: ffff888017a9d940 RSI: ffffffff813c04ab RDI: 0000000000000005
RBP: ffffc900001d7b08 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000004 R12: ffffc900001d7770
R13: ffffc900001d7778 R14: ffffc900001d0000 R15: ffffc900001d8000
FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe4f12d56c6 CR3: 0000000080964000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
on_stack arch/x86/include/asm/stacktrace.h:60 [inline]
stack_access_ok+0x1db/0x270 arch/x86/kernel/unwind_orc.c:393
deref_stack_reg arch/x86/kernel/unwind_orc.c:403 [inline]
unwind_next_frame+0xd89/0x2390 arch/x86/kernel/unwind_orc.c:585
arch_stack_walk+0x100/0x170 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
kasan_save_free_info+0x3f/0x60 mm/kasan/generic.c:640
poison_slab_object mm/kasan/common.c:241 [inline]
__kasan_slab_free+0x121/0x1c0 mm/kasan/common.c:257
kasan_slab_free include/linux/kasan.h:184 [inline]
slab_free_hook mm/slub.c:2121 [inline]
slab_free mm/slub.c:4299 [inline]
kfree+0x129/0x370 mm/slub.c:4409
skb_kfree_head net/core/skbuff.c:986 [inline]
skb_free_head+0x110/0x1b0 net/core/skbuff.c:998
skb_release_data+0x5c0/0x880 net/core/skbuff.c:1028
skb_release_all net/core/skbuff.c:1094 [inline]
__kfree_skb net/core/skbuff.c:1108 [inline]
consume_skb net/core/skbuff.c:1324 [inline]
consume_skb+0xd2/0x170 net/core/skbuff.c:1318
nsim_dev_trap_report drivers/net/netdevsim/dev.c:821 [inline]
nsim_dev_trap_report_work+0x878/0xc80 drivers/net/netdevsim/dev.c:850
process_one_work+0x8a7/0x1600 kernel/workqueue.c:2633
process_scheduled_works kernel/workqueue.c:2706 [inline]
worker_thread+0x8b6/0x1290 kernel/workqueue.c:2787
kthread+0x2c1/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:242