INFO: task syz-executor.1:7494 blocked for more than 143 seconds.
Not tainted 6.4.0-rc6-next-20230613-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:26984 pid:7494 ppid:6358 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5380 [inline]
__schedule+0x1d15/0x5790 kernel/sched/core.c:6709
schedule+0xde/0x1a0 kernel/sched/core.c:6785
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6844
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa3b/0x1350 kernel/locking/mutex.c:747
__pipe_lock fs/pipe.c:103 [inline]
pipe_release+0x4d/0x310 fs/pipe.c:721
__fput+0x288/0xaa0 fs/file_table.c:321
task_work_run+0x16f/0x270 kernel/task_work.c:179
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop kernel/entry/common.c:171 [inline]
exit_to_user_mode_prepare+0x210/0x240 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:297
do_syscall_64+0x46/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f19d783e04b
RSP: 002b:00007ffcaaf35c70 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00007f19d783e04b
RDX: 0000001b31020000 RSI: 000000000001f9cd RDI: 0000000000000004
RBP: 00007f19d79ad980 R08: 0000000000000000 R09: 0000000088123e7b
R10: 00007ffcaaff7090 R11: 0000000000000293 R12: 000000000006b15c
R13: 00007ffcaaf35d70 R14: 00007ffcaaf35d90 R15: 0000000000000032
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/13:
#0: ffffffff8c9a1c30 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xe60 kernel/rcu/tasks.h:568
1 lock held by rcu_tasks_trace/14:
#0: ffffffff8c9a18f0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xe60 kernel/rcu/tasks.h:568
1 lock held by khungtaskd/28:
#0: ffffffff8c9a2840 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x390 kernel/locking/lockdep.c:6615
2 locks held by getty/4780:
#0: ffff88814ae19098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc900015902f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xf02/0x13f0 drivers/tty/n_tty.c:2176
1 lock held by syz-executor.1/7494:
#0: ffff88807d4c8068 (&pipe->mutex/1){+.+.}-{3:3}, at: __pipe_lock fs/pipe.c:103 [inline]
#0: ffff88807d4c8068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_release+0x4d/0x310 fs/pipe.c:721
2 locks held by syz-executor.1/7496:
1 lock held by syz-executor.1/7598:
#0: ffff8880299ad468 (&pipe->mutex/1){+.+.}-{3:3}, at: __pipe_lock fs/pipe.c:103 [inline]
#0: ffff8880299ad468 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_release+0x4d/0x310 fs/pipe.c:721
2 locks held by syz-executor.1/7599:
1 lock held by syz-executor.1/7657:
#0: ffff88807391f068 (&pipe->mutex/1){+.+.}-{3:3}, at: __pipe_lock fs/pipe.c:103 [inline]
#0: ffff88807391f068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_release+0x4d/0x310 fs/pipe.c:721
2 locks held by syz-executor.1/7658:
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.4.0-rc6-next-20230613-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x150 lib/dump_stack.c:106
nmi_cpu_backtrace+0x29c/0x350 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x2a4/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:154 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xe16/0x1090 kernel/hung_task.c:379
kthread+0x344/0x440 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 5148 Comm: kworker/u4:6 Not tainted 6.4.0-rc6-next-20230613-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
Workqueue: bat_events batadv_nc_worker
RIP: 0010:kasan_check_range+0xeb/0x190 mm/kasan/generic.c:187
Code: 74 f2 48 89 c2 b8 01 00 00 00 48 85 d2 74 27 49 39 d1 75 17 49 0f be 01 41 83 e2 07 49 39 c2 73 0a 5b b8 01 00 00 00 5d 41 5c 44 89 c2 e8 dc ee ff ff 83 f0 01 5b 5d 41 5c c3 48 85 d2 74 e1
RSP: 0018:ffffc9000560fa38 EFLAGS: 00000046
RAX: 0000000000000001 RBX: 1ffff92000ac1f4f RCX: ffffffff816580fe
RDX: fffffbfff23083ec RSI: 0000000000000008 RDI: ffffffff91841f58
RBP: 0000000000000004 R08: 0000000000000000 R09: fffffbfff23083eb
R10: ffffffff91841f5f R11: 0000000000000000 R12: ffff8880196ea888
R13: 0000000000000002 R14: 00000000000006d3 R15: ffff8880196ea8a8
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c00067f000 CR3: 0000000020399000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
instrument_atomic_read include/linux/instrumented.h:68 [inline]
_test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
hlock_class kernel/locking/lockdep.c:228 [inline]
mark_lock.part.0+0xee/0x1960 kernel/locking/lockdep.c:4663
mark_lock kernel/locking/lockdep.c:4649 [inline]
mark_held_locks+0x9f/0xe0 kernel/locking/lockdep.c:4281
__trace_hardirqs_on_caller kernel/locking/lockdep.c:4299 [inline]
lockdep_hardirqs_on_prepare kernel/locking/lockdep.c:4366 [inline]
lockdep_hardirqs_on_prepare+0x139/0x410 kernel/locking/lockdep.c:4318
trace_hardirqs_on+0x36/0x40 kernel/trace/trace_preemptirq.c:61
__local_bh_enable_ip+0xa4/0x130 kernel/softirq.c:386
spin_unlock_bh include/linux/spinlock.h:395 [inline]
batadv_nc_purge_paths+0x1cc/0x3c0 net/batman-adv/network-coding.c:471
batadv_nc_worker+0x8fa/0xfe0 net/batman-adv/network-coding.c:720
process_one_work+0xa34/0x16f0 kernel/workqueue.c:2594
worker_thread+0x67d/0x10c0 kernel/workqueue.c:2745
kthread+0x344/0x440 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308