INFO: task syz-executor.1:6268 blocked for more than 143 seconds.
Not tainted 6.7.0-rc8-syzkaller-00055-g5eff55d725a4 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:27872 pid:6268 tgid:6260 ppid:20696 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0xedb/0x5af0 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0xe9/0x270 kernel/sched/core.c:6778
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6835
rwsem_down_write_slowpath kernel/locking/rwsem.c:1178 [inline]
__down_write_common+0x948/0x1400 kernel/locking/rwsem.c:1306
__super_lock fs/super.c:56 [inline]
super_lock+0xfd/0x380 fs/super.c:117
user_get_super+0xee/0x230 fs/super.c:1062
quotactl_block+0x3ce/0x680 fs/quota/quota.c:890
__do_sys_quotactl fs/quota/quota.c:955 [inline]
__se_sys_quotactl fs/quota/quota.c:917 [inline]
__x64_sys_quotactl+0x31d/0x440 fs/quota/quota.c:917
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7efef747cce9
RSP: 002b:00007efef82480c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000b3
RAX: ffffffffffffffda RBX: 00007efef759bf80 RCX: 00007efef747cce9
RDX: ffffffffffffffff RSI: 0000000020000140 RDI: ffffffff80000201
RBP: 00007efef74c947a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020000240 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007efef759bf80 R15: 00007ffed0956bc8
Showing all locks held in the system:
2 locks held by kworker/u4:0/10:
1 lock held by khungtaskd/28:
#0: ffffffff8cfa7d60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:301 [inline]
#0: ffffffff8cfa7d60 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:747 [inline]
#0: ffffffff8cfa7d60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6614
2 locks held by getty/4817:
#0: ffff88802173c0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc900015a02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfc6/0x1490 drivers/tty/n_tty.c:2201
1 lock held by syz-executor.2/5091:
1 lock held by syz-executor.3/5096:
#0: ffffffff8cfb37b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:325 [inline]
#0: ffffffff8cfb37b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x3ff/0x800 kernel/rcu/tree_exp.h:996
3 locks held by syz-executor.1/20633:
#0: ffff888033c580e0 (&type->s_umount_key#24){+.+.}-{3:3}
, at: __super_lock fs/super.c:56 [inline]
, at: __super_lock_excl fs/super.c:71 [inline]
, at: mount_bdev+0x1cb/0x2e0 fs/super.c:1648
#1: ffffc90004fa90f0 (&journal->j_mutex){+.+.}-{3:3}, at: reiserfs_mutex_lock_safe fs/reiserfs/reiserfs.h:813 [inline]
#1: ffffc90004fa90f0 (&journal->j_mutex){+.+.}-{3:3}, at: lock_journal fs/reiserfs/journal.c:533 [inline]
#1: ffffc90004fa90f0 (&journal->j_mutex){+.+.}-{3:3}, at: do_journal_end+0x33f/0x4f10 fs/reiserfs/journal.c:4026
#2: ffffc90004fa9180 (&journal->j_flush_mutex){+.+.}-{3:3}, at: reiserfs_mutex_lock_safe fs/reiserfs/reiserfs.h:813 [inline]
#2: ffffc90004fa9180 (&journal->j_flush_mutex){+.+.}-{3:3}, at: flush_journal_list.isra.0+0x319/0x2090 fs/reiserfs/journal.c:1368
2 locks held by kworker/u4:13/22846:
2 locks held by kworker/u4:6/29719:
#0: ffff888013077938 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x789/0x15d0 kernel/workqueue.c:2602
#1: ffffc90003697d80 ((work_completion)(&ctx->exit_work)){+.+.}-{0:0}, at: process_one_work+0x7eb/0x15d0 kernel/workqueue.c:2603
1 lock held by syz-executor.1/6268:
#0: ffff888033c580e0 (&type->s_umount_key#24){+.+.}-{3:3}, at: __super_lock fs/super.c:56 [inline]
#0: ffff888033c580e0 (&type->s_umount_key#24){+.+.}-{3:3}, at: super_lock+0xfd/0x380 fs/super.c:117
1 lock held by syz-executor.1/6346:
2 locks held by kworker/1:7/6766:
#0: ffff88801307b938 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x789/0x15d0 kernel/workqueue.c:2602
#1: ffffc90004767d80 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x7eb/0x15d0 kernel/workqueue.c:2603
4 locks held by syz-executor.2/7194:
1 lock held by syz-executor.1/7198:
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.7.0-rc8-syzkaller-00055-g5eff55d725a4 #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+0x277/0x390 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+0x2c6/0x3a0 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:242
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 10 Comm: kworker/u4:0 Not tainted 6.7.0-rc8-syzkaller-00055-g5eff55d725a4 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Workqueue: bat_events batadv_nc_worker
RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:85 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:102 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:127 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:159 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:178 [inline]
RIP: 0010:kasan_check_range+0x10d/0x190 mm/kasan/generic.c:187
Code: 00 00 7c 0b 44 89 c2 e8 c1 ed ff ff 83 f0 01 5b 5d 41 5c c3 48 85 d2 74 4f 48 01 ea eb 09 48 83 c0 01 48 39 d0 74 41 80 38 00 <74> f2 eb b6 41 bc 08 00 00 00 45 29 dc 49 8d 14 2c eb 0c 48 83 c0
RSP: 0018:ffffc9000030f8c0 EFLAGS: 00000046
RAX: fffffbfff23e23eb RBX: fffffbfff23e23ec RCX: ffffffff8166067e
RDX: fffffbfff23e23ec RSI: 0000000000000008 RDI: ffffffff91f11f58
RBP: fffffbfff23e23eb R08: 0000000000000000 R09: fffffbfff23e23eb
R10: ffffffff91f11f5f R11: 0000000000000002 R12: ffff88801a668b50
R13: ffffed10034cd15f R14: 00000000000006f0 R15: 0000000000000004
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020ead000 CR3: 000000007bdc0000 CR4: 00000000003506f0
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+0x4e/0x130 kernel/locking/lockdep.c:228
__lock_acquire+0xc65/0x3b20 kernel/locking/lockdep.c:5134
lock_acquire kernel/locking/lockdep.c:5754 [inline]
lock_acquire+0x1ae/0x520 kernel/locking/lockdep.c:5719
__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_nc_purge_paths+0xd3/0x3c0 net/batman-adv/network-coding.c:442
batadv_nc_worker+0x97a/0x10e0 net/batman-adv/network-coding.c:720
process_one_work+0x886/0x15d0 kernel/workqueue.c:2627
process_scheduled_works kernel/workqueue.c:2700 [inline]
worker_thread+0x8b9/0x1290 kernel/workqueue.c:2781
kthread+0x2c6/0x3a0 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:242