INFO: task syz-executor.3:17278 blocked for more than 143 seconds.
Not tainted 6.0.0-rc7-syzkaller-00132-g987a926c1d8a #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:27936 pid:17278 ppid: 3633 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5182 [inline]
__schedule+0x91f/0xdf0 kernel/sched/core.c:6494
schedule+0xcb/0x190 kernel/sched/core.c:6570
rwsem_down_write_slowpath+0xf1c/0x1350 kernel/locking/rwsem.c:1182
__down_write_common kernel/locking/rwsem.c:1297 [inline]
__down_write kernel/locking/rwsem.c:1306 [inline]
down_write+0x163/0x170 kernel/locking/rwsem.c:1553
inode_lock include/linux/fs.h:756 [inline]
__generic_file_fsync+0x96/0x190 fs/libfs.c:1119
generic_file_fsync+0x6f/0xe0 fs/libfs.c:1156
vfs_fsync_range fs/sync.c:188 [inline]
vfs_fsync fs/sync.c:202 [inline]
do_fsync fs/sync.c:212 [inline]
__do_sys_fsync fs/sync.c:220 [inline]
__se_sys_fsync fs/sync.c:218 [inline]
__x64_sys_fsync+0x1a7/0x1f0 fs/sync.c:218
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fbb8808a5a9
RSP: 002b:00007fbb86fbc168 EFLAGS: 00000246 ORIG_RAX: 000000000000004a
RAX: ffffffffffffffda RBX: 00007fbb881ac120 RCX: 00007fbb8808a5a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 00007fbb880e5580 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff7a79038f R14: 00007fbb86fbc300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/13:
#0: ffffffff8cb233f0 (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/14:
#0:
ffffffff8cb23bf0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 kernel/rcu/tasks.h:507
2 locks held by kworker/1:0/23:
#0: ffff888012066538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0
#1: ffffc900001d7d00 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264
1 lock held by khungtaskd/29:
#0: ffffffff8cb23220 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
3 locks held by kworker/1:2/142:
#0: ffff888012064d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0
#1: ffffc9000222fd00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264
#2: ffffffff8cb28838 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:292 [inline]
#2: ffffffff8cb28838 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x291/0x720 kernel/rcu/tree_exp.h:940
2 locks held by getty/3293:
#0: ffff888027b1e098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc90002d232f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x53b/0x1650 drivers/tty/n_tty.c:2177
2 locks held by syz-executor.3/17274:
1 lock held by syz-executor.3/17278:
#0: ffff888052ab8c30 (&type->i_mutex_dir_key#11){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#0: ffff888052ab8c30 (&type->i_mutex_dir_key#11){++++}-{3:3}, at: __generic_file_fsync+0x96/0x190 fs/libfs.c:1119
1 lock held by udevd/19470:
#0: ffff8880125360c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:811 [inline]
#0: ffff8880125360c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xf0/0x640 mm/readahead.c:220
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.0.0-rc7-syzkaller-00132-g987a926c1d8a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106
nmi_cpu_backtrace+0x425/0x450 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x169/0x280 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline]
watchdog+0xcd5/0xd20 kernel/hung_task.c:369
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 2973 Comm: udevd Not tainted 6.0.0-rc7-syzkaller-00132-g987a926c1d8a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:168 [inline]
RIP: 0010:unwind_next_frame+0x21a/0x24c0 arch/x86/kernel/unwind_orc.c:448
Code: 45 84 ed b9 ff ff ff ff 0f 45 c8 44 39 f1 0f 86 c1 19 00 00 44 89 f0 48 8d 1c 85 ac 82 2e 8f 48 89 d8 48 c1 e8 03 42 8a 04 08 <84> c0 0f 85 d3 1b 00 00 44 8b 3b 44 89 f0 ff c0 48 8d 1c 85 ac 82
RSP: 0018:ffffc90002daf3e0 EFLAGS: 00000a07
RAX: 1ffffffff1e74400 RBX: ffffffff8f3a273c RCX: 0000000000096079
RDX: dffffc0000000000 RSI: ffffffff83e924c0 RDI: ffffffff813b9763
RBP: 1ffff920005b5e9e R08: 0000000000000006 R09: dffffc0000000000
R10: fffff520005b5ea4 R11: 1ffff920005b5ea2 R12: ffffffff83e924bf
R13: ffffc90002daf501 R14: 000000000002e924 R15: ffffc90002daf4f5
FS: 00007f7890291840(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fca4bf81058 CR3: 00000000250ee000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
arch_stack_walk+0xb2/0xe0 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x104/0x1e0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:38 [inline]
kasan_set_track+0x3d/0x60 mm/kasan/common.c:45
kasan_set_free_info+0x1f/0x40 mm/kasan/generic.c:370
____kasan_slab_free+0xd8/0x120 mm/kasan/common.c:367
kasan_slab_free include/linux/kasan.h:200 [inline]
slab_free_hook mm/slub.c:1759 [inline]
slab_free_freelist_hook+0x12e/0x1a0 mm/slub.c:1785
slab_free mm/slub.c:3539 [inline]
kfree+0xda/0x210 mm/slub.c:4567
tomoyo_path_perm+0x50c/0x670 security/tomoyo/file.c:842
security_inode_getattr+0xc0/0x140 security/security.c:1345
vfs_getattr fs/stat.c:157 [inline]
vfs_statx+0x168/0x3d0 fs/stat.c:232
vfs_fstatat fs/stat.c:255 [inline]
__do_sys_newfstatat fs/stat.c:425 [inline]
__se_sys_newfstatat+0xdc/0x7c0 fs/stat.c:419
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f78903a21da
Code: 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 0b 00 00 00 66 2e 0f 1f 84 00 00 00 00 00 90 41 89 ca b8 06 01 00 00 0f 05 <3d> 00 f0 ff ff 77 07 31 c0 c3 0f 1f 40 00 48 8b 15 69 fc 0c 00 f7
RSP: 002b:00007ffdedf52d78 EFLAGS: 00000202 ORIG_RAX: 0000000000000106
RAX: ffffffffffffffda RBX: 000055dc8dd076e0 RCX: 00007f78903a21da
RDX: 00007ffdedf52d80 RSI: 00007f789043875a RDI: 000000000000000d
RBP: 000000000000000d R08: 0000000000090800 R09: 000055dc8dd0d590
R10: 0000000000001000 R11: 0000000000000202 R12: 00007ffdedf52d80
R13: 00000000000000ff R14: 00007ffdedf52e70 R15: 0000000000000000