INFO: task syz-executor.2:13636 blocked for more than 145 seconds.
Not tainted 6.6.0-rc6-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:26112 pid:13636 ppid:5073 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0xee1/0x5a10 kernel/sched/core.c:6695
schedule+0xe7/0x1b0 kernel/sched/core.c:6771
__lock_sock+0x140/0x260 net/core/sock.c:2959
lock_sock_nested+0xda/0xf0 net/core/sock.c:3510
lock_sock include/net/sock.h:1722 [inline]
sk_wait_data+0x248/0x500 net/core/sock.c:3026
tcp_recvmsg_locked+0xc33/0x24b0 net/ipv4/tcp.c:2445
tcp_recvmsg+0x12e/0x670 net/ipv4/tcp.c:2560
inet_recvmsg+0x114/0x630 net/ipv4/af_inet.c:872
sock_recvmsg_nosec net/socket.c:1044 [inline]
____sys_recvmsg+0x4ab/0x5c0 net/socket.c:2775
___sys_recvmsg+0x115/0x1a0 net/socket.c:2819
do_recvmmsg+0x2af/0x740 net/socket.c:2913
__sys_recvmmsg net/socket.c:2992 [inline]
__do_sys_recvmmsg net/socket.c:3015 [inline]
__se_sys_recvmmsg net/socket.c:3008 [inline]
__x64_sys_recvmmsg+0x235/0x290 net/socket.c:3008
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7efd3007cae9
RSP: 002b:00007efd30d500c8 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007efd3019c390 RCX: 00007efd3007cae9
RDX: 0000000000000002 RSI: 0000000020000dc0 RDI: 0000000000000007
RBP: 00007efd300c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007efd3019c390 R15: 00007ffd0f1d81a8
Showing all locks held in the system:
3 locks held by kworker/0:1/8:
#0: ffff8880b983c758 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x29/0x130 kernel/sched/core.c:558
#1: ffffc900002efd80 ((work_completion)(&(&krcp->krw_arr[i].rcu_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7e9/0x15c0 kernel/workqueue.c:2606
#2: ffffe8ffffc0abd8 (&ACCESS_PRIVATE(sdp, lock)){..-.}-{2:2}, at: spin_lock_irq include/linux/spinlock.h:376 [inline]
#2: ffffe8ffffc0abd8 (&ACCESS_PRIVATE(sdp, lock)){..-.}-{2:2}, at: srcu_invoke_callbacks+0x29e/0x460 kernel/rcu/srcutree.c:1721
1 lock held by khungtaskd/28:
#0: ffffffff8cba7960 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:303 [inline]
#0: ffffffff8cba7960 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:749 [inline]
#0: ffffffff8cba7960 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6613
1 lock held by udevd/4483:
2 locks held by getty/4784:
#0: ffff88814bddd0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc900020682f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfc5/0x1480 drivers/tty/n_tty.c:2206
2 locks held by kworker/1:1/8450:
#0: ffff888012c7b938 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x787/0x15c0 kernel/workqueue.c:2605
#1: ffffc9000303fd80 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x7e9/0x15c0 kernel/workqueue.c:2606
1 lock held by syz-executor.2/13636:
#0: ffff8880320362f0 (sk_lock-AF_INET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1722 [inline]
#0: ffff8880320362f0 (sk_lock-AF_INET){+.+.}-{0:0}, at: sk_wait_data+0x248/0x500 net/core/sock.c:3026
3 locks held by syz-executor.2/13638:
2 locks held by syz-executor.2/13699:
#0: ffff88802f3e80e0 (&type->s_umount_key#71){+.+.}-{3:3}, at: __super_lock fs/super.c:56 [inline]
#0: ffff88802f3e80e0 (&type->s_umount_key#71){+.+.}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff88802f3e80e0 (&type->s_umount_key#71){+.+.}-{3:3}, at: deactivate_super+0xd6/0x100 fs/super.c:513
#1: ffffffff8cbb3238 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:293 [inline]
#1: ffffffff8cbb3238 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x69e/0x7e0 kernel/rcu/tree_exp.h:992
4 locks held by kworker/1:4/13715:
#0: ffff8880b993c758 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x29/0x130 kernel/sched/core.c:558
#1: ffff8880b9928888 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x2d9/0x900 kernel/sched/psi.c:999
#2: ffff88802c4e0768 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: wiphy_lock include/net/cfg80211.h:5775 [inline]
#2: ffff88802c4e0768 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: cfg80211_wiphy_work+0x2b/0x330 net/wireless/core.c:422
#3: ffff88807d7dcd40 (&wdev->mtx){+.+.}-{3:3}, at: sdata_lock net/mac80211/ieee80211_i.h:1135 [inline]
#3: ffff88807d7dcd40 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0xb5/0x1590 net/mac80211/ibss.c:1684
1 lock held by syz-executor.5/14609:
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.6.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x277/0x380 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x299/0x300 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+0xf87/0x1210 kernel/hung_task.c:379
kthread+0x33c/0x440 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 13368 Comm: kworker/u4:11 Not tainted 6.6.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
Workqueue: bat_events batadv_purge_orig
RIP: 0010:__lock_acquire+0x90/0x5de0 kernel/locking/lockdep.c:4992
Code: 00 b0 7b 38 8c 48 89 44 24 20 48 c7 84 24 a0 00 00 00 f0 20 67 81 c7 02 f1 f1 f1 f1 c7 42 04 f1 f1 04 f2 c7 42 08 00 f3 f3 f3 <65> 48 8b 14 25 28 00 00 00 48 89 94 24 08 01 00 00 31 d2 48 c7 c2
RSP: 0018:ffffc9000386f918 EFLAGS: 00000086
RAX: 0000000000000000 RBX: 1ffff9200070df53 RCX: dffffc0000000000
RDX: fffff5200070df35 RSI: 0000000000000000 RDI: ffff88804cf78d58
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: ffff88804cf78d58 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055555616b978 CR3: 000000000c976000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire kernel/locking/lockdep.c:5753 [inline]
lock_acquire+0x1ae/0x510 kernel/locking/lockdep.c:5718
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline]
_raw_spin_lock_bh+0x33/0x40 kernel/locking/spinlock.c:178
spin_lock_bh include/linux/spinlock.h:356 [inline]
batadv_purge_orig_ref+0x16d/0x1520 net/batman-adv/originator.c:1243
batadv_purge_orig+0x19/0x60 net/batman-adv/originator.c:1272
process_one_work+0x884/0x15c0 kernel/workqueue.c:2630
process_scheduled_works kernel/workqueue.c:2703 [inline]
worker_thread+0x8b9/0x1290 kernel/workqueue.c:2784
kthread+0x33c/0x440 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304