INFO: task syz-executor.3:30651 blocked for more than 143 seconds.
Not tainted 6.1.0-rc8-syzkaller-00152-g3ecc37918c80 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:22072 pid:30651 ppid:3673 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5209 [inline]
__schedule+0x8c9/0xd70 kernel/sched/core.c:6521
schedule+0xcb/0x190 kernel/sched/core.c:6597
rwsem_down_write_slowpath+0xfc1/0x1480 kernel/locking/rwsem.c:1190
__down_write_common kernel/locking/rwsem.c:1305 [inline]
__down_write kernel/locking/rwsem.c:1314 [inline]
down_write_nested+0x23f/0x280 kernel/locking/rwsem.c:1673
inode_lock_nested include/linux/fs.h:791 [inline]
fuse_reverse_inval_entry+0xaa/0x860 fs/fuse/dir.c:1184
fuse_notify_inval_entry fs/fuse/dev.c:1501 [inline]
fuse_notify fs/fuse/dev.c:1789 [inline]
fuse_dev_do_write+0x2f60/0x3cc0 fs/fuse/dev.c:1873
fuse_dev_write+0x143/0x1d0 fs/fuse/dev.c:1957
call_write_iter include/linux/fs.h:2199 [inline]
new_sync_write fs/read_write.c:491 [inline]
vfs_write+0x7dc/0xc50 fs/read_write.c:584
ksys_write+0x177/0x2a0 fs/read_write.c:637
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: 0033:0x7f82aa08c0d9
RSP: 002b:00007f82aadba168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f82aa1abf80 RCX: 00007f82aa08c0d9
RDX: 0000000000000029 RSI: 00000000200043c0 RDI: 0000000000000003
RBP: 00007f82aa0e7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffeb408543f R14: 00007f82aadba300 R15: 0000000000022000
INFO: task syz-executor.3:30652 blocked for more than 143 seconds.
Not tainted 6.1.0-rc8-syzkaller-00152-g3ecc37918c80 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:24360 pid:30652 ppid:3673 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5209 [inline]
__schedule+0x8c9/0xd70 kernel/sched/core.c:6521
schedule+0xcb/0x190 kernel/sched/core.c:6597
request_wait_answer fs/fuse/dev.c:407 [inline]
__fuse_request_send fs/fuse/dev.c:426 [inline]
fuse_simple_request+0x1034/0x1870 fs/fuse/dev.c:511
fuse_lookup_name+0x349/0x830 fs/fuse/dir.c:392
fuse_lookup+0x13e/0x5d0 fs/fuse/dir.c:433
__lookup_hash+0x115/0x240 fs/namei.c:1601
filename_create+0x25f/0x4f0 fs/namei.c:3808
do_mkdirat+0xb5/0x550 fs/namei.c:4051
__do_sys_mkdirat fs/namei.c:4076 [inline]
__se_sys_mkdirat fs/namei.c:4074 [inline]
__x64_sys_mkdirat+0x85/0x90 fs/namei.c:4074
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: 0033:0x7f82aa08c0d9
RSP: 002b:00007f82aad99168 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007f82aa1ac050 RCX: 00007f82aa08c0d9
RDX: 0000000000000000 RSI: 0000000020004380 RDI: ffffffffffffff9c
RBP: 00007f82aa0e7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffeb408543f R14: 00007f82aad99300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8d127330 (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: ffffffff8d127b30 (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: ffffffff8d127160 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by getty/3319:
#0: ffff888017be7098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc900031262f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x53b/0x1650 drivers/tty/n_tty.c:2177
2 locks held by kworker/u4:7/3767:
2 locks held by syz-executor.3/30651:
#0: ffff88802980c338 (&fc->killsb){++++}-{3:3}, at: fuse_notify_inval_entry fs/fuse/dev.c:1500 [inline]
#0: ffff88802980c338 (&fc->killsb){++++}-{3:3}, at: fuse_notify fs/fuse/dev.c:1789 [inline]
#0: ffff88802980c338 (&fc->killsb){++++}-{3:3}, at: fuse_dev_do_write+0x2f1b/0x3cc0 fs/fuse/dev.c:1873
#1: ffff8880715e1c50 (&type->i_mutex_dir_key#9/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:791 [inline]
#1: ffff8880715e1c50 (&type->i_mutex_dir_key#9/1){+.+.}-{3:3}, at: fuse_reverse_inval_entry+0xaa/0x860 fs/fuse/dir.c:1184
3 locks held by syz-executor.3/30652:
#0: ffff888079210460 (sb_writers#13){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:393
#1: ffff8880715e1c50 (&type->i_mutex_dir_key#9/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:791 [inline]
#1: ffff8880715e1c50 (&type->i_mutex_dir_key#9/1){+.+.}-{3:3}, at: filename_create+0x22a/0x4f0 fs/namei.c:3807
#2: ffff8880715e20b8 (&fi->mutex){+.+.}-{3:3}, at: fuse_lock_inode+0xc0/0x110 fs/fuse/inode.c:468
2 locks held by syz-executor.3/30938:
#0: ffff88807bf30338 (&fc->killsb){++++}-{3:3}, at: fuse_notify_inval_entry fs/fuse/dev.c:1500 [inline]
#0: ffff88807bf30338 (&fc->killsb){++++}-{3:3}, at: fuse_notify fs/fuse/dev.c:1789 [inline]
#0: ffff88807bf30338 (&fc->killsb){++++}-{3:3}, at: fuse_dev_do_write+0x2f1b/0x3cc0 fs/fuse/dev.c:1873
#1: ffff888049395910 (&type->i_mutex_dir_key#9/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:791 [inline]
#1: ffff888049395910 (&type->i_mutex_dir_key#9/1){+.+.}-{3:3}, at: fuse_reverse_inval_entry+0xaa/0x860 fs/fuse/dir.c:1184
3 locks held by syz-executor.3/30941:
#0: ffff88807e96e460 (sb_writers#13){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:393
#1: ffff888049395910 (&type->i_mutex_dir_key#9/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:791 [inline]
#1: ffff888049395910 (&type->i_mutex_dir_key#9/1){+.+.}-{3:3}, at: filename_create+0x22a/0x4f0 fs/namei.c:3807
#2: ffff888049395d78 (&fi->mutex){+.+.}-{3:3}, at: fuse_lock_inode+0xc0/0x110 fs/fuse/inode.c:468
2 locks held by syz-executor.3/31708:
#0: ffff8880715e3750 (&type->i_mutex_dir_key#9){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:766 [inline]
#0: ffff8880715e3750 (&type->i_mutex_dir_key#9){++++}-{3:3}, at: open_last_lookups fs/namei.c:3480 [inline]
#0: ffff8880715e3750 (&type->i_mutex_dir_key#9){++++}-{3:3}, at: path_openat+0x7aa/0x2df0 fs/namei.c:3711
#1: ffff8880715e3bb8 (&fi->mutex){+.+.}-{3:3}, at: fuse_lock_inode+0xc0/0x110 fs/fuse/inode.c:468
1 lock held by syz-executor.3/31711:
#0: ffff8880715e3750 (&type->i_mutex_dir_key#9){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#0: ffff8880715e3750 (&type->i_mutex_dir_key#9){++++}-{3:3}, at: lock_mount+0x5f/0x2d0 fs/namespace.c:2292
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.1.0-rc8-syzkaller-00152-g3ecc37918c80 #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+0x1b1/0x28e lib/dump_stack.c:106
nmi_cpu_backtrace+0x46f/0x4f0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1ba/0x420 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+0xcf5/0xd40 kernel/hung_task.c:377
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 34 Comm: kworker/u4:2 Not tainted 6.1.0-rc8-syzkaller-00152-g3ecc37918c80 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Workqueue: phy12 ieee80211_iface_work
RIP: 0010:mark_lock+0x1/0x350 kernel/locking/lockdep.c:4595
Code: 38 c1 7c 8c 48 c7 c7 18 2a 76 8e e8 99 0e 74 00 48 ba 00 00 00 00 00 fc ff df e9 71 ff ff ff e8 e5 bd 27 09 0f 1f 44 00 00 55 <41> 57 41 56 41 55 41 54 53 48 83 ec 10 49 89 f7 48 89 3c 24 49 bd
RSP: 0018:ffffc90000ab7630 EFLAGS: 00000002
RAX: 0000000000000000 RBX: ffff888018444520 RCX: ffffffff816ab72a
RDX: 0000000000000002 RSI: ffff888018444520 RDI: ffff888018443a80
RBP: ffffc90000ab76e8 R08: dffffc0000000000 R09: fffffbfff20b2e46
R10: fffffbfff20b2e46 R11: 1ffffffff20b2e45 R12: ffff888018444540
R13: 0000000000000002 R14: ffff8880184444c8 R15: 1ffff11003088899
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005629c3e504c0 CR3: 00000000280ca000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
mark_held_locks kernel/locking/lockdep.c:4236 [inline]
__trace_hardirqs_on_caller kernel/locking/lockdep.c:4254 [inline]
lockdep_hardirqs_on_prepare+0x260/0x790 kernel/locking/lockdep.c:4321
trace_hardirqs_on+0x34/0x40 kernel/trace/trace_preemptirq.c:49
__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
_raw_spin_unlock_irqrestore+0x8b/0x120 kernel/locking/spinlock.c:194
__debug_check_no_obj_freed lib/debugobjects.c:999 [inline]
debug_check_no_obj_freed+0x5c2/0x650 lib/debugobjects.c:1020
slab_free_hook mm/slub.c:1699 [inline]
slab_free_freelist_hook+0xcf/0x1a0 mm/slub.c:1750
slab_free mm/slub.c:3661 [inline]
__kmem_cache_free+0x71/0x110 mm/slub.c:3674
ieee80211_ibss_rx_queued_mgmt+0x1acb/0x2c00
ieee80211_iface_process_skb net/mac80211/iface.c:1630 [inline]
ieee80211_iface_work+0x773/0xcf0 net/mac80211/iface.c:1684
process_one_work+0x877/0xdb0 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:306