INFO: task syz-executor.5:12330 blocked for more than 143 seconds.
Not tainted 6.3.0-rc7-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:19992 pid:12330 ppid:1 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5307 [inline]
__schedule+0x173b/0x4630 kernel/sched/core.c:6625
schedule+0xc3/0x180 kernel/sched/core.c:6701
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6760
__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:1686
lookup_slow+0x53/0x70 fs/namei.c:1703
walk_component fs/namei.c:1994 [inline]
link_path_walk+0x9c8/0xe70 fs/namei.c:2321
path_openat+0x241/0x3170 fs/namei.c:3711
do_filp_open+0x234/0x490 fs/namei.c:3742
do_sys_openat2+0x13f/0x500 fs/open.c:1348
do_sys_open fs/open.c:1364 [inline]
__do_sys_openat fs/open.c:1380 [inline]
__se_sys_openat fs/open.c:1375 [inline]
__x64_sys_openat+0x247/0x290 fs/open.c:1375
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: 0033:0x7f8a8fe8bcd8
RSP: 002b:00007fff6cd12d10 EFLAGS: 00000287 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000000dc6 RCX: 00007f8a8fe8bcd8
RDX: 0000000000090800 RSI: 00007f8a8fee6d80 RDI: 00000000ffffff9c
RBP: 00007fff6cd12ddc R08: 0000000000090800 R09: 00007f8a8fee6d80
R10: 0000000000000000 R11: 0000000000000287 R12: 0000000000000000
R13: 000000000011ef31 R14: 000000000000000d R15: 00007fff6cd12e40
INFO: task syz-executor.5:7705 blocked for more than 143 seconds.
Not tainted 6.3.0-rc7-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:26904 pid:7705 ppid:12330 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5307 [inline]
__schedule+0x173b/0x4630 kernel/sched/core.c:6625
schedule+0xc3/0x180 kernel/sched/core.c:6701
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:1671
lookup_slow+0x53/0x70 fs/namei.c:1703
walk_component+0x2d0/0x400 fs/namei.c:1994
lookup_last fs/namei.c:2451 [inline]
path_lookupat+0x16f/0x450 fs/namei.c:2475
filename_lookup+0x255/0x610 fs/namei.c:2504
user_path_at_empty+0x44/0x180 fs/namei.c:2877
user_path_at include/linux/namei.h:57 [inline]
__do_sys_chdir fs/open.c:551 [inline]
__se_sys_chdir+0xbf/0x220 fs/open.c:545
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: 0033:0x7f8a8fe8c169
RSP: 002b:00007f8a90b46168 EFLAGS: 00000246 ORIG_RAX: 0000000000000050
RAX: ffffffffffffffda RBX: 00007f8a8ffabf80 RCX: 00007f8a8fe8c169
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000200042c0
RBP: 00007f8a8fee7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff6cd12b1f R14: 00007f8a90b46300 R15: 0000000000022000
INFO: task syz-executor.5:7706 blocked for more than 143 seconds.
Not tainted 6.3.0-rc7-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:27112 pid:7706 ppid:12330 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5307 [inline]
__schedule+0x173b/0x4630 kernel/sched/core.c:6625
schedule+0xc3/0x180 kernel/sched/core.c:6701
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
__lookup_slow+0x282/0x3e0 fs/namei.c:1686
lookup_slow+0x53/0x70 fs/namei.c:1703
walk_component+0x2d0/0x400 fs/namei.c:1994
lookup_last fs/namei.c:2451 [inline]
path_lookupat+0x16f/0x450 fs/namei.c:2475
filename_lookup+0x255/0x610 fs/namei.c:2504
user_path_at_empty+0x44/0x180 fs/namei.c:2877
user_path_at include/linux/namei.h:57 [inline]
do_mount fs/namespace.c:3382 [inline]
__do_sys_mount fs/namespace.c:3594 [inline]
__se_sys_mount+0x29a/0x3c0 fs/namespace.c:3571
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: 0033:0x7f8a8fe8c169
RSP: 002b:00007f8a90b25168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f8a8ffac050 RCX: 00007f8a8fe8c169
RDX: 0000000000000000 RSI: 00000000200020c0 RDI: 0000000000000000
RBP: 00007f8a8fee7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff6cd12b1f R14: 00007f8a90b25300 R15: 0000000000022000
INFO: task syz-executor.5:7710 blocked for more than 144 seconds.
Not tainted 6.3.0-rc7-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:28088 pid:7710 ppid:12330 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5307 [inline]
__schedule+0x173b/0x4630 kernel/sched/core.c:6625
schedule+0xc3/0x180 kernel/sched/core.c:6701
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:1671
lookup_slow+0x53/0x70 fs/namei.c:1703
walk_component+0x2d0/0x400 fs/namei.c:1994
lookup_last fs/namei.c:2451 [inline]
path_lookupat+0x16f/0x450 fs/namei.c:2475
filename_lookup+0x255/0x610 fs/namei.c:2504
user_path_at_empty+0x44/0x180 fs/namei.c:2877
user_path_at include/linux/namei.h:57 [inline]
do_mount fs/namespace.c:3382 [inline]
__do_sys_mount fs/namespace.c:3594 [inline]
__se_sys_mount+0x29a/0x3c0 fs/namespace.c:3571
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: 0033:0x7f8a8fe8c169
RSP: 002b:00007f8a90b04168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f8a8ffac120 RCX: 00007f8a8fe8c169
RDX: 0000000000000000 RSI: 00000000200020c0 RDI: 0000000000000000
RBP: 00007f8a8fee7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff6cd12b1f R14: 00007f8a90b04300 R15: 0000000000022000
Showing all locks held in the system:
2 locks held by kworker/u4:0/9:
#0: ffff8880b983be98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:539
#1: ffff8880b9828788 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x3a7/0x770 kernel/sched/psi.c:964
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8cf25570 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:510
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8cf25d70 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:510
1 lock held by khungtaskd/28:
#0: ffffffff8cf253a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by getty/4743:
#0: ffff888028629098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc900015902f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ab/0x1db0 drivers/tty/n_tty.c:2177
2 locks held by syz-executor.5/12330:
#0: ffff888073f28ed0 (&type->i_mutex_dir_key#22){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:768 [inline]
#0: ffff888073f28ed0 (&type->i_mutex_dir_key#22){++++}-{3:3}, at: lookup_slow+0x45/0x70 fs/namei.c:1702
#1: ffff888073f29338 (&fi->mutex){+.+.}-{3:3}, at: fuse_lock_inode+0xd3/0x120 fs/fuse/inode.c:475
1 lock held by syz-executor.5/7705:
#0: ffff888073f28ed0 (&type->i_mutex_dir_key#22){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:768 [inline]
#0: ffff888073f28ed0 (&type->i_mutex_dir_key#22){++++}-{3:3}, at: lookup_slow+0x45/0x70 fs/namei.c:1702
2 locks held by syz-executor.5/7706:
#0: ffff888073f28ed0 (&type->i_mutex_dir_key#22){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:768 [inline]
#0: ffff888073f28ed0 (&type->i_mutex_dir_key#22){++++}-{3:3}, at: lookup_slow+0x45/0x70 fs/namei.c:1702
#1: ffff888073f29338 (&fi->mutex){+.+.}-{3:3}, at: fuse_lock_inode+0xd3/0x120 fs/fuse/inode.c:475
1 lock held by syz-executor.5/7710:
#0: ffff888073f28ed0 (&type->i_mutex_dir_key#22){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:768 [inline]
#0: ffff888073f28ed0 (&type->i_mutex_dir_key#22){++++}-{3:3}, at: lookup_slow+0x45/0x70 fs/namei.c:1702
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.3.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023
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+0x270/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 3130 Comm: kworker/u4:7 Not tainted 6.3.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023
Workqueue: phy9 ieee80211_iface_work
RIP: 0010:unwind_next_frame+0x1a3a/0x2180 arch/x86/kernel/unwind_orc.c:657
Code: 00 fc ff df 48 8b 4c 24 20 0f b6 04 01 84 c0 48 8b 5c 24 08 0f 85 20 01 00 00 c7 03 00 00 00 00 31 c0 48 81 c4 98 00 00 00 5b <41> 5c 41 5d 41 5e 41 5f 5d c3 4d 89 e5 4c 89 e5 4c 89 f0 48 29 e8
RSP: 0018:ffffc900065cefd0 EFLAGS: 00000282
RAX: 0000000080000001 RBX: ffffc900065cf000 RCX: 0000000080000000
RDX: dffffc0000000000 RSI: ffffc900065c8000 RDI: 0000000000000001
RBP: ffffc900065cf000 R08: ffffc900065cfc50 R09: ffffc900065cf050
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc900065cf000
R13: ffffffff8f58fa81 R14: ffffc900065c8000 R15: ffffc900065cfc60
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c019bcdb70 CR3: 000000002c10c000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
arch_stack_walk+0x111/0x140 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x117/0x1c0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:45 [inline]
kasan_set_track+0x4f/0x70 mm/kasan/common.c:52
____kasan_kmalloc mm/kasan/common.c:374 [inline]
__kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:383
kasan_kmalloc include/linux/kasan.h:196 [inline]
__do_kmalloc_node mm/slab_common.c:967 [inline]
__kmalloc+0xb9/0x230 mm/slab_common.c:980
kmalloc include/linux/slab.h:584 [inline]
kzalloc include/linux/slab.h:720 [inline]
ieee802_11_parse_elems_full+0x112/0x2a40 net/mac80211/util.c:1609
ieee802_11_parse_elems_crc net/mac80211/ieee80211_i.h:2265 [inline]
ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2272 [inline]
ieee80211_bss_info_update+0x994/0xf00 net/mac80211/scan.c:212
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+0x192f/0x2cf0 net/mac80211/ibss.c:1638
ieee80211_iface_process_skb net/mac80211/iface.c:1583 [inline]
ieee80211_iface_work+0x7bd/0xd00 net/mac80211/iface.c:1637
process_one_work+0x8a0/0x10e0 kernel/workqueue.c:2390
worker_thread+0xa63/0x1210 kernel/workqueue.c:2537
kthread+0x270/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308