INFO: task syz-executor.0:5173 blocked for more than 143 seconds.
Not tainted 6.2.0-rc3-syzkaller-00329-g1fe4fd6f5cad #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:25464 pid:5173 ppid:5145 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5244 [inline]
__schedule+0x9d1/0xe40 kernel/sched/core.c:6555
schedule+0xcb/0x190 kernel/sched/core.c:6631
schedule_timeout+0xac/0x300 kernel/time/timer.c:2143
do_wait_for_common+0x3ea/0x560 kernel/sched/completion.c:85
__wait_for_common kernel/sched/completion.c:106 [inline]
wait_for_common kernel/sched/completion.c:117 [inline]
wait_for_completion+0x46/0x60 kernel/sched/completion.c:138
__flush_work+0x124/0x1a0 kernel/workqueue.c:3073
__cancel_work_timer+0x517/0x6a0 kernel/workqueue.c:3160
tls_sk_proto_close+0x120/0x970 net/tls/tls_main.c:326
inet_release+0x184/0x1e0 net/ipv4/af_inet.c:428
__sock_release net/socket.c:650 [inline]
sock_close+0xd7/0x260 net/socket.c:1365
__fput+0x3ba/0x880 fs/file_table.c:320
task_work_run+0x243/0x300 kernel/task_work.c:179
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0x134/0x160 kernel/entry/common.c:171
exit_to_user_mode_prepare+0xad/0x110 kernel/entry/common.c:203
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x2e/0x60 kernel/entry/common.c:296
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x4181ab
RSP: 002b:00007ffcb38e01e0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 00000000004181ab
RDX: 0000000000000000 RSI: 0000001b2d420110 RDI: 0000000000000004
RBP: 0000000000000005 R08: 0000000000000000 R09: 0000001b2d420118
R10: 0000000000000000 R11: 0000000000000293 R12: 000000000055d900
R13: 000000000055d900 R14: 000000000055cf00 R15: 000000000055cf00
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8d5239d0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8d5241d0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/28:
#0: ffffffff8d523800 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
3 locks held by kworker/1:2/898:
#0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x796/0xd10 kernel/workqueue.c:2262
#1: ffffc90004497d00 ((work_completion)(&(&sw_ctx_tx->tx_work.work)->work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0xd10 kernel/workqueue.c:2264
#2: ffff888070a1dcd8 (&ctx->tx_lock){+.+.}-{3:3}, at: tx_work_handler+0x111/0x150 net/tls/tls_sw.c:2419
2 locks held by getty/4737:
#0: ffff888027c8e098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc900015a02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6e8/0x1e50 drivers/tty/n_tty.c:2177
1 lock held by syz-executor.0/5173:
#0: ffff888076e33810 (&sb->s_type->i_mutex_key#9){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#0: ffff888076e33810 (&sb->s_type->i_mutex_key#9){+.+.}-{3:3}, at: __sock_release net/socket.c:649 [inline]
#0: ffff888076e33810 (&sb->s_type->i_mutex_key#9){+.+.}-{3:3}, at: sock_close+0x93/0x260 net/socket.c:1365
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.2.0-rc3-syzkaller-00329-g1fe4fd6f5cad #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x4e3/0x560 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x19b/0x3e0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
watchdog+0xcd5/0xd20 kernel/hung_task.c:377
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 9 Comm: kworker/u4:0 Not tainted 6.2.0-rc3-syzkaller-00329-g1fe4fd6f5cad #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Workqueue: bat_events batadv_nc_worker
RIP: 0010:variable_test_bit arch/x86/include/asm/bitops.h:228 [inline]
RIP: 0010:arch_test_bit arch/x86/include/asm/bitops.h:240 [inline]
RIP: 0010:_test_bit include/asm-generic/bitops/instrumented-non-atomic.h:142 [inline]
RIP: 0010:__lock_acquire+0xcde/0x1f60 kernel/locking/lockdep.c:5025
Code: 75 36 48 63 5c 24 78 48 89 d8 48 c1 e8 06 48 8d 3c c5 80 01 97 90 be 08 00 00 00 e8 2c dd 77 00 48 bf 00 00 00 00 00 fc ff df <48> 0f a3 1d aa 5c 2a 0f 0f 83 9a 08 00 00 4c 8d b5 28 0a 00 00 4d
RSP: 0018:ffffc900000e7988 EFLAGS: 00000056
RAX: 0000000000000001 RBX: 0000000000000021 RCX: ffffffff816ca4c4
RDX: 0000000000000000 RSI: 0000000000000008 RDI: dffffc0000000000
RBP: ffff88813fec8000 R08: dffffc0000000000 R09: fffffbfff212e031
R10: fffffbfff212e031 R11: 1ffffffff212e030 R12: ffff88813fec8a88
R13: 0000000000000004 R14: 0000000000000000 R15: ffff88813fec8aa8
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000557d54b47078 CR3: 000000002c944000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire+0x1a7/0x400 kernel/locking/lockdep.c:5668
rcu_lock_acquire+0x2a/0x30 include/linux/rcupdate.h:325
rcu_read_lock include/linux/rcupdate.h:764 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:408 [inline]
batadv_nc_worker+0xc8/0x5b0 net/batman-adv/network-coding.c:719
process_one_work+0x81c/0xd10 kernel/workqueue.c:2289
worker_thread+0xb14/0x1330 kernel/workqueue.c:2436
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308