INFO: task syz-executor.4:5034 blocked for more than 143 seconds.
Not tainted 6.4.0-syzkaller-01554-g6f612579be9d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:20848 pid:5034 ppid:1 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5381 [inline]
__schedule+0x187b/0x4900 kernel/sched/core.c:6707
schedule+0xc3/0x180 kernel/sched/core.c:6783
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6842
__mutex_lock_common+0xe33/0x2530 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x1b/0x20 kernel/locking/mutex.c:799
fuse_lock_inode+0xd3/0x120 fs/fuse/inode.c:475
fuse_lookup+0x115/0x600 fs/fuse/dir.c:432
__lookup_slow+0x282/0x3e0 fs/namei.c:1690
lookup_slow+0x53/0x70 fs/namei.c:1707
walk_component fs/namei.c:1998 [inline]
link_path_walk+0x9c8/0xe70 fs/namei.c:2325
path_openat+0x249/0x3180 fs/namei.c:3789
do_filp_open+0x234/0x490 fs/namei.c:3820
do_sys_openat2+0x13a/0x520 fs/open.c:1402
do_sys_open fs/open.c:1418 [inline]
__do_sys_openat fs/open.c:1434 [inline]
__se_sys_openat fs/open.c:1429 [inline]
__x64_sys_openat+0x247/0x290 fs/open.c:1429
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fd2e748be98
RSP: 002b:00007ffcec4b93f0 EFLAGS: 00000287 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000000bdc RCX: 00007fd2e748be98
RDX: 0000000000090800 RSI: 00007fd2e74d64df RDI: 00000000ffffff9c
RBP: 00007ffcec4b94bc R08: 0000000000090800 R09: 00007fd2e74d64df
R10: 0000000000000000 R11: 0000000000000287 R12: 0000000000000000
R13: 000000000011bd19 R14: 0000000000000016 R15: 00007ffcec4b9520
INFO: task syz-executor.4:26666 blocked for more than 143 seconds.
Not tainted 6.4.0-syzkaller-01554-g6f612579be9d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:24528 pid:26666 ppid:5034 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5381 [inline]
__schedule+0x187b/0x4900 kernel/sched/core.c:6707
schedule+0xc3/0x180 kernel/sched/core.c:6783
request_wait_answer fs/fuse/dev.c:407 [inline]
__fuse_request_send fs/fuse/dev.c:426 [inline]
fuse_simple_request+0x1192/0x1b80 fs/fuse/dev.c:513
fuse_lookup_name+0x332/0x830 fs/fuse/dir.c:392
fuse_lookup+0x182/0x600 fs/fuse/dir.c:433
fuse_atomic_open+0x19e/0x870 fs/fuse/dir.c:739
atomic_open fs/namei.c:3355 [inline]
lookup_open fs/namei.c:3463 [inline]
open_last_lookups fs/namei.c:3560 [inline]
path_openat+0x1044/0x3180 fs/namei.c:3790
do_filp_open+0x234/0x490 fs/namei.c:3820
do_sys_openat2+0x13a/0x520 fs/open.c:1402
do_sys_open fs/open.c:1418 [inline]
__do_sys_open fs/open.c:1426 [inline]
__se_sys_open fs/open.c:1422 [inline]
__x64_sys_open+0x225/0x270 fs/open.c:1422
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fd2e748c389
RSP: 002b:00007fd2e815f168 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007fd2e75abf80 RCX: 00007fd2e748c389
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020004240
RBP: 00007fd2e74d7493 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcec4b91ff R14: 00007fd2e815f300 R15: 0000000000022000
INFO: task syz-executor.4:26681 blocked for more than 144 seconds.
Not tainted 6.4.0-syzkaller-01554-g6f612579be9d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:26128 pid:26681 ppid:5034 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5381 [inline]
__schedule+0x187b/0x4900 kernel/sched/core.c:6707
schedule+0xc3/0x180 kernel/sched/core.c:6783
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6842
__mutex_lock_common+0xe33/0x2530 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x1b/0x20 kernel/locking/mutex.c:799
fuse_lock_inode+0xd3/0x120 fs/fuse/inode.c:475
fuse_lookup+0x115/0x600 fs/fuse/dir.c:432
__lookup_slow+0x282/0x3e0 fs/namei.c:1690
lookup_slow+0x53/0x70 fs/namei.c:1707
walk_component fs/namei.c:1998 [inline]
link_path_walk+0x9c8/0xe70 fs/namei.c:2325
path_openat+0x249/0x3180 fs/namei.c:3789
do_filp_open+0x234/0x490 fs/namei.c:3820
do_sys_openat2+0x13a/0x520 fs/open.c:1402
do_sys_open fs/open.c:1418 [inline]
__do_sys_openat fs/open.c:1434 [inline]
__se_sys_openat fs/open.c:1429 [inline]
__x64_sys_openat+0x247/0x290 fs/open.c:1429
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fd2e748c389
RSP: 002b:00007fd2e811d168 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fd2e75ac120 RCX: 00007fd2e748c389
RDX: 0000000000000042 RSI: 0000000020002080 RDI: ffffffffffffff9c
RBP: 00007fd2e74d7493 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcec4b91ff R14: 00007fd2e811d300 R15: 0000000000022000
INFO: task syz-executor.4:26686 blocked for more than 144 seconds.
Not tainted 6.4.0-syzkaller-01554-g6f612579be9d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:28144 pid:26686 ppid:5034 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5381 [inline]
__schedule+0x187b/0x4900 kernel/sched/core.c:6707
schedule+0xc3/0x180 kernel/sched/core.c:6783
d_wait_lookup+0x1f8/0x2c0 fs/dcache.c:2625
d_alloc_parallel+0xa63/0x13a0 fs/dcache.c:2707
__lookup_slow+0x117/0x3e0 fs/namei.c:1675
lookup_slow+0x53/0x70 fs/namei.c:1707
walk_component+0x2d0/0x400 fs/namei.c:1998
lookup_last fs/namei.c:2455 [inline]
path_lookupat+0x16f/0x450 fs/namei.c:2479
filename_lookup+0x255/0x610 fs/namei.c:2508
user_path_at_empty+0x44/0x180 fs/namei.c:2907
user_path_at include/linux/namei.h:57 [inline]
do_mount fs/namespace.c:3672 [inline]
__do_sys_mount fs/namespace.c:3884 [inline]
__se_sys_mount+0x29a/0x3c0 fs/namespace.c:3861
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fd2e748c389
RSP: 002b:00007fd2e80fc168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fd2e75ac1f0 RCX: 00007fd2e748c389
RDX: 0000000020002100 RSI: 00000000200042c0 RDI: 0000000000000000
RBP: 00007fd2e74d7493 R08: 0000000020002140 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcec4b91ff R14: 00007fd2e80fc300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/13:
#0: ffffffff8cf272b0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:522
1 lock held by rcu_tasks_trace/14:
#0: ffffffff8cf27670 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:522
1 lock held by khungtaskd/28:
#0: ffffffff8cf270e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by getty/4751:
#0: ffff88802d33a098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc900015b02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b1/0x1db0 drivers/tty/n_tty.c:2176
2 locks held by syz-executor.4/5034:
#0: ffff88808ea05fd0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:781 [inline]
#0: ffff88808ea05fd0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: lookup_slow+0x45/0x70 fs/namei.c:1706
#1: ffff88808ea06438 (&fi->mutex){+.+.}-{3:3}, at: fuse_lock_inode+0xd3/0x120 fs/fuse/inode.c:475
2 locks held by kworker/u4:12/6684:
#0: ffff888012479138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2381
#1: ffff8880b99287c8 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x441/0x770 kernel/sched/psi.c:995
2 locks held by syz-executor.4/26666:
#0: ffff88808ea05fd0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:781 [inline]
#0: ffff88808ea05fd0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: open_last_lookups fs/namei.c:3559 [inline]
#0: ffff88808ea05fd0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: path_openat+0x7b3/0x3180 fs/namei.c:3790
#1: ffff88808ea06438 (&fi->mutex){+.+.}-{3:3}, at: fuse_lock_inode+0xd3/0x120 fs/fuse/inode.c:475
2 locks held by syz-executor.4/26681:
#0: ffff88808ea05fd0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:781 [inline]
#0: ffff88808ea05fd0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: lookup_slow+0x45/0x70 fs/namei.c:1706
#1: ffff88808ea06438 (&fi->mutex){+.+.}-{3:3}, at: fuse_lock_inode+0xd3/0x120 fs/fuse/inode.c:475
1 lock held by syz-executor.4/26686:
#0: ffff88808ea05fd0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:781 [inline]
#0: ffff88808ea05fd0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: lookup_slow+0x45/0x70 fs/namei.c:1706
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.4.0-syzkaller-01554-g6f612579be9d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x498/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x187/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xec2/0xf00 kernel/hung_task.c:379
kthread+0x2b8/0x350 kernel/kthread.c:389
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: 4430 Comm: syslogd Not tainted 6.4.0-syzkaller-01554-g6f612579be9d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
RIP: 0010:lockdep_recursion_finish kernel/locking/lockdep.c:467 [inline]
RIP: 0010:lock_release+0x5d5/0x9d0 kernel/locking/lockdep.c:5783
Code: 08 48 8b 5c 24 28 49 89 dd 4c 8d b4 24 90 00 00 00 48 c7 c7 20 a0 ea 8a e8 98 9f 45 09 b8 ff ff ff ff 65 0f c1 05 93 ce 96 7e <83> f8 01 0f 85 94 00 00 00 4c 89 f3 48 c1 eb 03 42 80 3c 3b 00 74
RSP: 0018:ffffc9000594f420 EFLAGS: 00000057
RAX: 0000000000000001 RBX: 0000000000000046 RCX: ffffc9000594f403
RDX: 0000000000000004 RSI: ffffffff8aeaa020 RDI: ffffffff8b387360
RBP: ffffc9000594f548 R08: dffffc0000000000 R09: fffffbfff1caca66
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000b29e90
R13: 0000000000000046 R14: ffffc9000594f4b0 R15: dffffc0000000000
FS: 00007f577ea02380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000562215189150 CR3: 000000002c1b8000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__lruvec_stat_mod_folio include/linux/vmstat.h:615 [inline]
filemap_unaccount_folio+0x1db/0xc60 mm/filemap.c:185
__filemap_remove_folio+0xcb/0xad0 mm/filemap.c:224
filemap_remove_folio+0x109/0x2e0 mm/filemap.c:257
truncate_inode_folio+0x5d/0x70 mm/truncate.c:196
shmem_undo_range+0x43d/0x1ba0 mm/shmem.c:950
shmem_truncate_range mm/shmem.c:1049 [inline]
shmem_evict_inode+0x258/0x9f0 mm/shmem.c:1164
evict+0x2a4/0x620 fs/inode.c:665
__dentry_kill+0x436/0x650 fs/dcache.c:607
dentry_kill+0xbb/0x290
dput+0x1f3/0x420 fs/dcache.c:913
do_renameat2+0xd85/0x1660 fs/namei.c:5012
__do_sys_rename fs/namei.c:5056 [inline]
__se_sys_rename fs/namei.c:5054 [inline]
__x64_sys_rename+0x86/0x90 fs/namei.c:5054
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f577eada93b
Code: 48 8b 15 f0 64 15 00 83 c8 ff 64 83 3a 15 75 0e 48 8b 7c 24 08 e8 d5 d4 07 00 f7 d8 19 c0 48 83 c4 18 c3 b8 52 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 10 48 8b 15 be 64 15 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffe2c34ea28 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
RAX: ffffffffffffffda RBX: 000055e83a15e910 RCX: 00007f577eada93b
RDX: 00007ffe2c34ea43 RSI: 00007ffe2c34ea30 RDI: 00007f577ecf5443
RBP: 00007ffe2c34eb70 R08: 0000000000000000 R09: 00007ffe2c34e3f8
R10: 00007f577ecf53c0 R11: 0000000000000246 R12: 000055e83a15ec50
R13: 00007ffe2c34ea30 R14: 00007ffe2c34ea50 R15: 0000000000000000