INFO: task syz-executor.0:3663 blocked for more than 143 seconds.
Not tainted 6.1.0-rc8-syzkaller-00164-g4cee37b3a4e6 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:18224 pid:3663 ppid:1 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
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6656
__mutex_lock_common+0xe4f/0x26e0 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:799
fuse_lock_inode+0xc0/0x110 fs/fuse/inode.c:468
fuse_lookup+0xd2/0x5d0 fs/fuse/dir.c:432
__lookup_slow+0x266/0x3a0 fs/namei.c:1685
lookup_slow+0x53/0x70 fs/namei.c:1702
walk_component fs/namei.c:1993 [inline]
link_path_walk+0xa06/0xf00 fs/namei.c:2320
path_openat+0x237/0x2df0 fs/namei.c:3710
do_filp_open+0x264/0x4f0 fs/namei.c:3741
do_sys_openat2+0x124/0x4e0 fs/open.c:1310
do_sys_open fs/open.c:1326 [inline]
__do_sys_openat fs/open.c:1342 [inline]
__se_sys_openat fs/open.c:1337 [inline]
__x64_sys_openat+0x243/0x290 fs/open.c:1337
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: 0033:0x7f5a0ea8bc48
RSP: 002b:00007ffec1dcea50 EFLAGS: 00000287 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000000689 RCX: 00007f5a0ea8bc48
RDX: 0000000000090800 RSI: 00007f5a0eae6bc8 RDI: 00000000ffffff9c
RBP: 00007ffec1dceb1c R08: 0000000000090800 R09: 00007f5a0eae6bc8
R10: 0000000000000000 R11: 0000000000000287 R12: 0000000000000000
R13: 000000000009825a R14: 0000000000000016 R15: 00007ffec1dceb80
INFO: task syz-executor.0:18317 blocked for more than 143 seconds.
Not tainted 6.1.0-rc8-syzkaller-00164-g4cee37b3a4e6 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:21768 pid:18317 ppid:3663 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_slow+0x266/0x3a0 fs/namei.c:1685
lookup_slow+0x53/0x70 fs/namei.c:1702
walk_component fs/namei.c:1993 [inline]
link_path_walk+0xa06/0xf00 fs/namei.c:2320
path_openat+0x237/0x2df0 fs/namei.c:3710
do_filp_open+0x264/0x4f0 fs/namei.c:3741
do_sys_openat2+0x124/0x4e0 fs/open.c:1310
do_sys_open fs/open.c:1326 [inline]
__do_sys_openat fs/open.c:1342 [inline]
__se_sys_openat fs/open.c:1337 [inline]
__x64_sys_openat+0x243/0x290 fs/open.c:1337
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: 0033:0x7f5a0ea8c0d9
RSP: 002b:00007f5a0f777168 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f5a0ebabf80 RCX: 00007f5a0ea8c0d9
RDX: 0000000000000042 RSI: 0000000020004300 RDI: ffffffffffffff9c
RBP: 00007f5a0eae7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffec1dce85f R14: 00007f5a0f777300 R15: 0000000000022000
INFO: task syz-executor.0:18328 blocked for more than 144 seconds.
Not tainted 6.1.0-rc8-syzkaller-00164-g4cee37b3a4e6 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:24072 pid:18328 ppid:3663 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_do_getattr+0x396/0xf90 fs/fuse/dir.c:1119
vfs_getattr fs/stat.c:161 [inline]
vfs_statx+0x1ba/0x4a0 fs/stat.c:233
vfs_fstatat fs/stat.c:267 [inline]
__do_sys_newfstatat fs/stat.c:437 [inline]
__se_sys_newfstatat+0xed/0x7d0 fs/stat.c:431
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: 0033:0x7f5a0ea8c0d9
RSP: 002b:00007f5a0f735168 EFLAGS: 00000246 ORIG_RAX: 0000000000000106
RAX: ffffffffffffffda RBX: 00007f5a0ebac120 RCX: 00007f5a0ea8c0d9
RDX: 0000000020000240 RSI: 0000000020000300 RDI: ffffffffffffff9c
RBP: 00007f5a0eae7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffec1dce85f R14: 00007f5a0f735300 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 kworker/u4:5/1213:
2 locks held by getty/3309:
#0: ffff8880288db098 (&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 syz-executor.0/3663:
#0: ffff8880713cdfd0 (&type->i_mutex_dir_key#12){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:766 [inline]
#0: ffff8880713cdfd0 (&type->i_mutex_dir_key#12){++++}-{3:3}, at: lookup_slow+0x45/0x70 fs/namei.c:1701
#1: ffff8880713ce438 (&fi->mutex){+.+.}-{3:3}, at: fuse_lock_inode+0xc0/0x110 fs/fuse/inode.c:468
2 locks held by syz-executor.0/18317:
#0: ffff8880713cdfd0 (&type->i_mutex_dir_key#12){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:766 [inline]
#0: ffff8880713cdfd0 (&type->i_mutex_dir_key#12){++++}-{3:3}, at: lookup_slow+0x45/0x70 fs/namei.c:1701
#1: ffff8880713ce438 (&fi->mutex){+.+.}-{3:3}, at: fuse_lock_inode+0xc0/0x110 fs/fuse/inode.c:468
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.1.0-rc8-syzkaller-00164-g4cee37b3a4e6 #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 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 1213 Comm: kworker/u4:5 Not tainted 6.1.0-rc8-syzkaller-00164-g4cee37b3a4e6 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Workqueue: phy4 ieee80211_iface_work
RIP: 0010:__lock_acquire+0x8a/0x1f60 kernel/locking/lockdep.c:4925
Code: 0b 00 74 2c 4c 89 e8 48 c1 e8 03 80 3c 10 00 74 12 4c 89 ef e8 57 6b 74 00 48 ba 00 00 00 00 00 fc ff df 48 c7 c0 40 70 45 90 <49> 39 45 00 75 03 45 31 e4 89 6c 24 44 44 89 74 24 60 44 89 7c 24
RSP: 0018:ffffc9000596f288 EFLAGS: 00000046
RAX: ffffffff90457040 RBX: 0000000000000000 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffffffff9204d7f8
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001
R10: fffffbfff1cebeae R11: 1ffffffff1cebead R12: 0000000000000001
R13: ffffffff9204d7f8 R14: 0000000000000001 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c00853f0f8 CR3: 000000000ce8e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire+0x182/0x3c0 kernel/locking/lockdep.c:5668
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xb3/0x100 kernel/locking/spinlock.c:162
__debug_check_no_obj_freed lib/debugobjects.c:977 [inline]
debug_check_no_obj_freed+0xc5/0x650 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_bss_info_update+0xa44/0x1060 net/mac80211/scan.c:223
ieee80211_rx_bss_info net/mac80211/ibss.c:1120 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1609 [inline]
ieee80211_ibss_rx_queued_mgmt+0x1907/0x2c00 net/mac80211/ibss.c:1638
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