INFO: task syz-executor.4:17026 blocked for more than 143 seconds.
Not tainted 5.19.0-syzkaller-02972-g200e340f2196 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:26008 pid:17026 ppid: 3639 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5178 [inline]
__schedule+0x957/0xe20 kernel/sched/core.c:6490
schedule+0xcb/0x190 kernel/sched/core.c:6566
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6625
__mutex_lock_common+0xecf/0x26c0 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:799
odev_open+0x54/0x90 sound/core/seq/oss/seq_oss.c:127
chrdev_open+0x5fb/0x680 fs/char_dev.c:414
do_dentry_open+0x774/0x1100 fs/open.c:878
do_open fs/namei.c:3499 [inline]
path_openat+0x25a7/0x2da0 fs/namei.c:3632
do_filp_open+0x275/0x500 fs/namei.c:3659
do_sys_openat2+0x13b/0x500 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+0x2b/0x70 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fc924089279
RSP: 002b:00007fc92510c168 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fc92419bf80 RCX: 00007fc924089279
RDX: 0000000000040001 RSI: 0000000020000000 RDI: ffffffffffffff9c
RBP: 00007fc9240e3189 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000006000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd97002dff R14: 00007fc92510c300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8cb1f030 (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: ffffffff8cb1f830 (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: ffffffff8cb1ee60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by getty/3280:
#0: ffff888027307098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc90002d162e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6e8/0x1e50 drivers/tty/n_tty.c:2124
4 locks held by kworker/u4:9/4239:
#0: ffff888011dba938 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x796/0xd10 kernel/workqueue.c:2262
#1: ffffc9000a98fd00 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7d0/0xd10 kernel/workqueue.c:2264
#2: ffffffff8dbb6c10 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xf0/0xc50 net/core/net_namespace.c:556
#3: ffffffff8dbc2d68 (rtnl_mutex){+.+.}-{3:3}, at: cangw_pernet_exit_batch+0x1c/0x90 net/can/gw.c:1250
6 locks held by kworker/u4:18/6103:
2 locks held by kworker/1:18/12564:
#0: ffff888011c66538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x796/0xd10 kernel/workqueue.c:2262
#1: ffffc9000a9dfd00 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0xd10 kernel/workqueue.c:2264
2 locks held by syz-executor.5/17053:
#0: ffffffff8db30f28 (register_mutex#4){+.+.}-{3:3}, at: odev_release+0x4a/0x70 sound/core/seq/oss/seq_oss.c:143
#1: ffff8880175999f0 (&grp->list_mutex#2){+.+.}-{3:3}, at: snd_seq_port_disconnect+0x50/0x660 sound/core/seq/seq_ports.c:612
1 lock held by syz-executor.0/17012:
#0: ffffffff8db30f28 (register_mutex#4){+.+.}-{3:3}, at: odev_open+0x54/0x90 sound/core/seq/oss/seq_oss.c:127
1 lock held by syz-executor.4/17026:
#0: ffffffff8db30f28 (register_mutex#4){+.+.}-{3:3}, at: odev_open+0x54/0x90 sound/core/seq/oss/seq_oss.c:127
1 lock held by syz-executor.5/17390:
#0: ffffffff8db30f28 (register_mutex#4){+.+.}-{3:3}, at: odev_open+0x54/0x90 sound/core/seq/oss/seq_oss.c:127
3 locks held by syz-executor.2/18481:
#0: ffffffff8dbb6c10 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x33d/0x5b0 net/core/net_namespace.c:467
#1: ffffffff8dbc2d68 (rtnl_mutex){+.+.}-{3:3}, at: ip_tunnel_delete_nets+0xc9/0x370 net/ipv4/ip_tunnel.c:1119
#2: ffffffff8cb243f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:292 [inline]
#2: ffffffff8cb243f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x2a4/0x770 kernel/rcu/tree_exp.h:940
1 lock held by syz-executor.3/18534:
#0: ffffffff8cb242c0 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x48/0x620 kernel/rcu/tree.c:3788
1 lock held by syz-executor.5/18539:
#0: ffffffff8cb242c0 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x48/0x620 kernel/rcu/tree.c:3788
1 lock held by syz-executor.4/18549:
#0: ffffffff8dbc2d68 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffffffff8dbc2d68 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x772/0xea0 net/core/rtnetlink.c:6086
1 lock held by syz-executor.4/18551:
#0: ffffffff8dbc2d68 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffffffff8dbc2d68 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x772/0xea0 net/core/rtnetlink.c:6086
1 lock held by syz-executor.4/18552:
#0: ffffffff8dbc2d68 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffffffff8dbc2d68 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x772/0xea0 net/core/rtnetlink.c:6086
1 lock held by syz-executor.1/18548:
#0: ffffffff8dbc2d68 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffffffff8dbc2d68 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x772/0xea0 net/core/rtnetlink.c:6086
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 5.19.0-syzkaller-02972-g200e340f2196 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
nmi_cpu_backtrace+0x473/0x4a0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x168/0x280 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [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
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 5433 Comm: kworker/u4:15 Not tainted 5.19.0-syzkaller-02972-g200e340f2196 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
Workqueue: phy26 ieee80211_iface_work
RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:163 [inline]
RIP: 0010:unwind_next_frame+0x204/0x24c0 arch/x86/kernel/unwind_orc.c:443
Code: 41 03 48 85 c9 48 0f 49 c1 44 8a 2d de 1f 1d 0b 48 c1 e8 02 ff c8 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 b4 74 23 8f 48 89 d8 48 c1 e8 03 42 8a 04 08
RSP: 0018:ffffc9000aea7320 EFLAGS: 00000216
RAX: 0000000000096077 RBX: ffffc9000aea7448 RCX: 0000000000096077
RDX: dffffc0000000000 RSI: ffffffff89b51bd2 RDI: ffffffff813bbc33
RBP: 1ffff920015d4e86 R08: 0000000000000003 R09: dffffc0000000000
R10: fffff520015d4e8c R11: 1ffff920015d4e8a R12: ffffffff89b51bd1
R13: ffffc9000aea7401 R14: 000000000008b51b R15: ffffc9000aea7435
FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd07cfcff8 CR3: 000000000c88e000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
arch_stack_walk+0x112/0x140 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x12d/0x1f0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:38 [inline]
kasan_set_track mm/kasan/common.c:45 [inline]
set_alloc_info mm/kasan/common.c:437 [inline]
____kasan_kmalloc+0xdc/0x110 mm/kasan/common.c:516
kasan_kmalloc include/linux/kasan.h:234 [inline]
kmem_cache_alloc_trace+0x97/0x310 mm/slub.c:3284
kmalloc include/linux/slab.h:600 [inline]
kzalloc include/linux/slab.h:733 [inline]
ieee802_11_parse_elems_crc+0xce/0x1130 net/mac80211/util.c:1505
ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2257 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1605 [inline]
ieee80211_ibss_rx_queued_mgmt+0x392/0x28c0 net/mac80211/ibss.c:1639
ieee80211_iface_process_skb net/mac80211/iface.c:1528 [inline]
ieee80211_iface_work+0x757/0xcd0 net/mac80211/iface.c:1582
process_one_work+0x81c/0xd10 kernel/workqueue.c:2289
worker_thread+0xb14/0x1330 kernel/workqueue.c:2436
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30