nf_conntrack: default automatic helper assignment has been turned off for security reasons and CT-based firewall rule not found. Use the iptables CT target to attach helpers instead.
=====================================================
WARNING: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected
5.19.0-rc6-syzkaller-00104-g72a8e05d4f66 #0 Not tainted
-----------------------------------------------------
syz-executor.3/8409 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire:
ffffffff8ba0a098 (tasklist_lock){.+.+}-{2:2}, at: send_sigurg+0xad/0xaf0 fs/fcntl.c:832
and this task is already holding:
ffff88807bc09670 (&f->f_owner.lock){...-}-{2:2}, at: send_sigurg+0x1e/0xaf0 fs/fcntl.c:816
which would create a new lock dependency:
(&f->f_owner.lock){...-}-{2:2} -> (tasklist_lock){.+.+}-{2:2}
but this new dependency connects a HARDIRQ-irq-safe lock:
(&timer->lock){-.-.}-{2:2}
... which became HARDIRQ-irq-safe at:
lock_acquire kernel/locking/lockdep.c:5665 [inline]
lock_acquire+0x1ab/0x570 kernel/locking/lockdep.c:5630
__raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
_raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154
spin_lock include/linux/spinlock.h:349 [inline]
snd_hrtimer_callback+0x4f/0x3c0 sound/core/hrtimer.c:38
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x609/0xe50 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1112
sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
filter_irq_stacks+0x1b/0x90 kernel/stacktrace.c:394
__stack_depot_save+0x35/0x500 lib/stackdepot.c:383
kasan_save_stack+0x2e/0x40 mm/kasan/common.c:39
__kasan_record_aux_stack+0x7e/0x90 mm/kasan/generic.c:348
call_rcu+0x99/0x790 kernel/rcu/tree.c:3126
security_inode_free+0x9a/0xc0 security/security.c:1056
__destroy_inode+0x1fc/0x700 fs/inode.c:285
destroy_inode+0x91/0x1b0 fs/inode.c:308
iput_final fs/inode.c:1744 [inline]
iput.part.0+0x562/0x820 fs/inode.c:1770
iput+0x58/0x70 fs/inode.c:1760
d_delete_notify include/linux/fsnotify.h:261 [inline]
vfs_rmdir.part.0+0x496/0x5a0 fs/namei.c:4074
vfs_rmdir fs/namei.c:4046 [inline]
do_rmdir+0x3a6/0x430 fs/namei.c:4122
__do_sys_unlinkat fs/namei.c:4302 [inline]
__se_sys_unlinkat fs/namei.c:4296 [inline]
__x64_sys_unlinkat+0xeb/0x130 fs/namei.c:4296
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
to a HARDIRQ-irq-unsafe lock:
(tasklist_lock){.+.+}-{2:2}
... which became HARDIRQ-irq-unsafe at:
...
lock_acquire kernel/locking/lockdep.c:5665 [inline]
lock_acquire+0x1ab/0x570 kernel/locking/lockdep.c:5630
__raw_read_lock include/linux/rwlock_api_smp.h:150 [inline]
_raw_read_lock+0x5b/0x70 kernel/locking/spinlock.c:228
do_wait+0x284/0xce0 kernel/exit.c:1508
kernel_wait+0x9c/0x150 kernel/exit.c:1698
call_usermodehelper_exec_sync kernel/umh.c:139 [inline]
call_usermodehelper_exec_work+0xf5/0x180 kernel/umh.c:166
process_one_work+0x996/0x1610 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
other info that might help us debug this:
Chain exists of:
&timer->lock --> &f->f_owner.lock --> tasklist_lock
Possible interrupt unsafe locking scenario:
CPU0 CPU1
---- ----
lock(tasklist_lock);
local_irq_disable();
lock(&timer->lock);
lock(&f->f_owner.lock);
<Interrupt>
lock(&timer->lock);
*** DEADLOCK ***
2 locks held by syz-executor.3/8409:
#0: ffff888023a0af30 (sk_lock-AF_INET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1677 [inline]
#0: ffff888023a0af30 (sk_lock-AF_INET){+.+.}-{0:0}, at: inet_wait_for_connect net/ipv4/af_inet.c:595 [inline]
#0: ffff888023a0af30 (sk_lock-AF_INET){+.+.}-{0:0}, at: __inet_stream_connect+0x5fa/0xed0 net/ipv4/af_inet.c:685
#1: ffff88807bc09670 (&f->f_owner.lock){...-}-{2:2}, at: send_sigurg+0x1e/0xaf0 fs/fcntl.c:816
the dependencies between HARDIRQ-irq-safe lock and the holding lock:
-> (&timer->lock){-.-.}-{2:2} {
IN-HARDIRQ-W at:
lock_acquire kernel/locking/lockdep.c:5665 [inline]
lock_acquire+0x1ab/0x570 kernel/locking/lockdep.c:5630
__raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
_raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154
spin_lock include/linux/spinlock.h:349 [inline]
snd_hrtimer_callback+0x4f/0x3c0 sound/core/hrtimer.c:38
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x609/0xe50 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1112
sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
filter_irq_stacks+0x1b/0x90 kernel/stacktrace.c:394
__stack_depot_save+0x35/0x500 lib/stackdepot.c:383
kasan_save_stack+0x2e/0x40 mm/kasan/common.c:39
__kasan_record_aux_stack+0x7e/0x90 mm/kasan/generic.c:348
call_rcu+0x99/0x790 kernel/rcu/tree.c:3126
security_inode_free+0x9a/0xc0 security/security.c:1056
__destroy_inode+0x1fc/0x700 fs/inode.c:285
destroy_inode+0x91/0x1b0 fs/inode.c:308
iput_final fs/inode.c:1744 [inline]
iput.part.0+0x562/0x820 fs/inode.c:1770
iput+0x58/0x70 fs/inode.c:1760
d_delete_notify include/linux/fsnotify.h:261 [inline]
vfs_rmdir.part.0+0x496/0x5a0 fs/namei.c:4074
vfs_rmdir fs/namei.c:4046 [inline]
do_rmdir+0x3a6/0x430 fs/namei.c:4122
__do_sys_unlinkat fs/namei.c:4302 [inline]
__se_sys_unlinkat fs/namei.c:4296 [inline]
__x64_sys_unlinkat+0xeb/0x130 fs/namei.c:4296
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
IN-SOFTIRQ-W at:
lock_acquire kernel/locking/lockdep.c:5665 [inline]
lock_acquire+0x1ab/0x570 kernel/locking/lockdep.c:5630
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x39/0x50 kernel/locking/spinlock.c:162
snd_timer_notify sound/core/timer.c:1086 [inline]
snd_timer_notify+0x10c/0x3d0 sound/core/timer.c:1073
snd_pcm_timer_notify sound/core/pcm_native.c:608 [inline]
snd_pcm_post_stop+0x195/0x1f0 sound/core/pcm_native.c:1512
snd_pcm_action_single sound/core/pcm_native.c:1283 [inline]
snd_pcm_drain_done+0xdc/0x120 sound/core/pcm_native.c:1550
snd_pcm_update_state+0x43b/0x540 sound/core/pcm_lib.c:191
snd_pcm_update_hw_ptr0+0xa75/0x1a50 sound/core/pcm_lib.c:465
snd_pcm_period_elapsed_under_stream_lock+0x15a/0x230 sound/core/pcm_lib.c:1817
snd_pcm_period_elapsed+0x28/0x50 sound/core/pcm_lib.c:1849
dummy_hrtimer_callback+0x94/0x1b0 sound/drivers/dummy.c:377
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x609/0xe50 kernel/time/hrtimer.c:1749
hrtimer_run_softirq+0x17b/0x360 kernel/time/hrtimer.c:1766
__do_softirq+0x29b/0x9c2 kernel/softirq.c:571
invoke_softirq kernel/softirq.c:445 [inline]
__irq_exit_rcu+0x123/0x180 kernel/softirq.c:650
irq_exit_rcu+0x5/0x20 kernel/softirq.c:662
sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
get_current arch/x86/include/asm/current.h:15 [inline]
finish_task_switch.isra.0+0x2b9/0xbb0 kernel/sched/core.c:5026
context_switch kernel/sched/core.c:5149 [inline]
__schedule+0xa08/0x4b50 kernel/sched/core.c:6458
preempt_schedule_irq+0x4e/0x90 kernel/sched/core.c:6766
irqentry_exit+0x31/0x80 kernel/entry/common.c:428
asm_sysvec_reschedule_ipi+0x16/0x20 arch/x86/include/asm/idtentry.h:654
lock_is_held_type+0xff/0x140 kernel/locking/lockdep.c:5713
lock_is_held include/linux/lockdep.h:279 [inline]
rcu_read_lock_sched_held+0x3a/0x70 kernel/rcu/update.c:125
task_css include/linux/cgroup.h:495 [inline]
mem_cgroup_from_task+0x3c/0x130 mm/memcontrol.c:907
get_obj_cgroup_from_current mm/memcontrol.c:2923 [inline]
__memcg_kmem_charge_page+0x124/0x3b0 mm/memcontrol.c:3023
memcg_kmem_charge_page include/linux/memcontrol.h:1723 [inline]
memcg_charge_kernel_stack.part.0+0x6c/0x150 kernel/fork.c:259
memcg_charge_kernel_stack kernel/fork.c:256 [inline]
alloc_thread_stack_node kernel/fork.c:321 [inline]
dup_task_struct kernel/fork.c:977 [inline]
copy_process+0x15f5/0x7020 kernel/fork.c:2071
kernel_clone+0xe7/0xab0 kernel/fork.c:2655
__do_sys_clone+0xba/0x100 kernel/fork.c:2789
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
INITIAL USE at:
lock_acquire kernel/locking/lockdep.c:5665 [inline]
lock_acquire+0x1ab/0x570 kernel/locking/lockdep.c:5630
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x39/0x50 kernel/locking/spinlock.c:162
snd_timer_notify sound/core/timer.c:1086 [inline]
snd_timer_notify+0x10c/0x3d0 sound/core/timer.c:1073
snd_pcm_timer_notify sound/core/pcm_native.c:608 [inline]
snd_pcm_post_stop+0x195/0x1f0 sound/core/pcm_native.c:1512
snd_pcm_action_single+0xf4/0x130 sound/core/pcm_native.c:1283
snd_pcm_action+0x6e/0x90 sound/core/pcm_native.c:1364
snd_pcm_stop sound/core/pcm_native.c:1535 [inline]
snd_pcm_drop+0x1ab/0x320 sound/core/pcm_native.c:2218
snd_pcm_kernel_ioctl+0x2af/0x310 sound/core/pcm_native.c:3445
snd_pcm_oss_sync+0x230/0x800 sound/core/oss/pcm_oss.c:1746
snd_pcm_oss_release+0x276/0x300 sound/core/oss/pcm_oss.c:2590
__fput+0x277/0x9d0 fs/file_table.c:317
task_work_run+0xdd/0x1a0 kernel/task_work.c:177
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop kernel/entry/common.c:169 [inline]
exit_to_user_mode_prepare+0x23c/0x250 kernel/entry/common.c:201
__syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline]
syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:294
do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
}
... key at: [<ffffffff912cd200>] __key.10+0x0/0x40
-> (&new->fa_lock){....}-{2:2} {
INITIAL USE at:
lock_acquire kernel/locking/lockdep.c:5665 [inline]
lock_acquire+0x1ab/0x570 kernel/locking/lockdep.c:5630
__raw_write_lock_irq include/linux/rwlock_api_smp.h:195 [inline]
_raw_write_lock_irq+0x32/0x50 kernel/locking/spinlock.c:326
fasync_remove_entry+0xb6/0x1e0 fs/fcntl.c:872
fasync_helper+0x9e/0xb0 fs/fcntl.c:975
__fput+0x834/0x9d0 fs/file_table.c:314
task_work_run+0xdd/0x1a0 kernel/task_work.c:177
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop kernel/entry/common.c:169 [inline]
exit_to_user_mode_prepare+0x23c/0x250 kernel/entry/common.c:201
__syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline]
syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:294
do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
INITIAL READ USE at:
lock_acquire kernel/locking/lockdep.c:5665 [inline]
lock_acquire+0x1ab/0x570 kernel/locking/lockdep.c:5630
__raw_read_lock_irqsave include/linux/rwlock_api_smp.h:160 [inline]
_raw_read_lock_irqsave+0x70/0x90 kernel/locking/spinlock.c:236
kill_fasync_rcu fs/fcntl.c:995 [inline]
kill_fasync fs/fcntl.c:1016 [inline]
kill_fasync+0x136/0x470 fs/fcntl.c:1009
snd_timer_user_ccallback+0x298/0x330 sound/core/timer.c:1386
snd_timer_notify1+0x11c/0x3b0 sound/core/timer.c:516
snd_timer_start1+0x4d4/0x800 sound/core/timer.c:578
snd_timer_start sound/core/timer.c:696 [inline]
snd_timer_start sound/core/timer.c:689 [inline]
snd_timer_user_start.isra.0+0x1e3/0x260 sound/core/timer.c:1984
__snd_timer_user_ioctl.isra.0+0xda4/0x2490 sound/core/timer.c:2107
snd_timer_user_ioctl+0x77/0xb0 sound/core/timer.c:2128
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl fs/ioctl.c:856 [inline]
__x64_sys_ioctl+0x193/0x200 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
}
... key at: [<ffffffff90fc11a0>] __key.0+0x0/0x40
... acquired at:
__raw_read_lock_irqsave include/linux/rwlock_api_smp.h:160 [inline]
_raw_read_lock_irqsave+0x70/0x90 kernel/locking/spinlock.c:236
kill_fasync_rcu fs/fcntl.c:995 [inline]
kill_fasync fs/fcntl.c:1016 [inline]
kill_fasync+0x136/0x470 fs/fcntl.c:1009
snd_timer_user_ccallback+0x298/0x330 sound/core/timer.c:1386
snd_timer_notify1+0x11c/0x3b0 sound/core/timer.c:516
snd_timer_start1+0x4d4/0x800 sound/core/timer.c:578
snd_timer_start sound/core/timer.c:696 [inline]
snd_timer_start sound/core/timer.c:689 [inline]
snd_timer_user_start.isra.0+0x1e3/0x260 sound/core/timer.c:1984
__snd_timer_user_ioctl.isra.0+0xda4/0x2490 sound/core/timer.c:2107
snd_timer_user_ioctl+0x77/0xb0 sound/core/timer.c:2128
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl fs/ioctl.c:856 [inline]
__x64_sys_ioctl+0x193/0x200 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
-> (&f->f_owner.lock){...-}-{2:2} {
IN-SOFTIRQ-R at:
lock_acquire kernel/locking/lockdep.c:5665 [inline]
lock_acquire+0x1ab/0x570 kernel/locking/lockdep.c:5630
__raw_read_lock_irqsave include/linux/rwlock_api_smp.h:160 [inline]
_raw_read_lock_irqsave+0x45/0x90 kernel/locking/spinlock.c:236
send_sigurg+0x1e/0xaf0 fs/fcntl.c:816
sk_send_sigurg+0x76/0x310 net/core/sock.c:3275
tcp_check_urg net/ipv4/tcp_input.c:5596 [inline]
tcp_urg+0x38e/0xb40 net/ipv4/tcp_input.c:5637
tcp_rcv_established+0x81d/0x20e0 net/ipv4/tcp_input.c:5984
tcp_v4_do_rcv+0x66c/0x9b0 net/ipv4/tcp_ipv4.c:1659
tcp_v4_rcv+0x343b/0x3940 net/ipv4/tcp_ipv4.c:2076
ip_protocol_deliver_rcu+0xa3/0x7c0 net/ipv4/ip_input.c:205
ip_local_deliver_finish+0x2e8/0x4c0 net/ipv4/ip_input.c:233
NF_HOOK include/linux/netfilter.h:307 [inline]
NF_HOOK include/linux/netfilter.h:301 [inline]
ip_local_deliver+0x1aa/0x200 net/ipv4/ip_input.c:254
dst_input include/net/dst.h:461 [inline]
ip_rcv_finish+0x1cb/0x2f0 net/ipv4/ip_input.c:437
NF_HOOK include/linux/netfilter.h:307 [inline]
NF_HOOK include/linux/netfilter.h:301 [inline]
ip_rcv+0xaa/0xd0 net/ipv4/ip_input.c:557
__netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:5480
__netif_receive_skb+0x24/0x1b0 net/core/dev.c:5594
process_backlog+0x3a0/0x7c0 net/core/dev.c:5922
__napi_poll+0xb3/0x6e0 net/core/dev.c:6488
napi_poll net/core/dev.c:6555 [inline]
net_rx_action+0x9c1/0xd90 net/core/dev.c:6666
__do_softirq+0x29b/0x9c2 kernel/softirq.c:571
run_ksoftirqd kernel/softirq.c:934 [inline]
run_ksoftirqd+0x2d/0x60 kernel/softirq.c:926
smpboot_thread_fn+0x645/0x9c0 kernel/smpboot.c:164
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
INITIAL USE at:
lock_acquire kernel/locking/lockdep.c:5665 [inline]
lock_acquire+0x1ab/0x570 kernel/locking/lockdep.c:5630
__raw_write_lock_irq include/linux/rwlock_api_smp.h:195 [inline]
_raw_write_lock_irq+0x32/0x50 kernel/locking/spinlock.c:326
f_modown+0x2a/0x390 fs/fcntl.c:90
generic_add_lease fs/locks.c:1820 [inline]
generic_setlease+0x11bc/0x1760 fs/locks.c:1899
vfs_setlease+0xfd/0x120 fs/locks.c:1989
do_fcntl_add_lease fs/locks.c:2010 [inline]
fcntl_setlease+0x134/0x2c0 fs/locks.c:2032
do_fcntl+0x299/0x1040 fs/fcntl.c:402
__do_sys_fcntl fs/fcntl.c:453 [inline]
__se_sys_fcntl fs/fcntl.c:438 [inline]
__x64_sys_fcntl+0x15f/0x1d0 fs/fcntl.c:438
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
INITIAL READ USE at:
lock_acquire kernel/locking/lockdep.c:5665 [inline]
lock_acquire+0x1ab/0x570 kernel/locking/lockdep.c:5630
__raw_read_lock_irqsave include/linux/rwlock_api_smp.h:160 [inline]
_raw_read_lock_irqsave+0x70/0x90 kernel/locking/spinlock.c:236
send_sigio+0x24/0x380 fs/fcntl.c:777
kill_fasync_rcu fs/fcntl.c:1002 [inline]
kill_fasync fs/fcntl.c:1016 [inline]
kill_fasync+0x1f8/0x470 fs/fcntl.c:1009
snd_timer_user_ccallback+0x298/0x330 sound/core/timer.c:1386
snd_timer_notify1+0x11c/0x3b0 sound/core/timer.c:516
snd_timer_start1+0x4d4/0x800 sound/core/timer.c:578
snd_timer_start sound/core/timer.c:696 [inline]
snd_timer_start sound/core/timer.c:689 [inline]
snd_timer_user_start.isra.0+0x1e3/0x260 sound/core/timer.c:1984
__snd_timer_user_ioctl.isra.0+0xda4/0x2490 sound/core/timer.c:2107
snd_timer_user_ioctl+0x77/0xb0 sound/core/timer.c:2128
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl fs/ioctl.c:856 [inline]
__x64_sys_ioctl+0x193/0x200 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
}
... key at: [<ffffffff90fc03c0>] __key.5+0x0/0x40
... acquired at:
__raw_read_lock_irqsave include/linux/rwlock_api_smp.h:160 [inline]
_raw_read_lock_irqsave+0x70/0x90 kernel/locking/spinlock.c:236
send_sigio+0x24/0x380 fs/fcntl.c:777
kill_fasync_rcu fs/fcntl.c:1002 [inline]
kill_fasync fs/fcntl.c:1016 [inline]
kill_fasync+0x1f8/0x470 fs/fcntl.c:1009
snd_timer_user_ccallback+0x298/0x330 sound/core/timer.c:1386
snd_timer_notify1+0x11c/0x3b0 sound/core/timer.c:516
snd_timer_start1+0x4d4/0x800 sound/core/timer.c:578
snd_timer_start sound/core/timer.c:696 [inline]
snd_timer_start sound/core/timer.c:689 [inline]
snd_timer_user_start.isra.0+0x1e3/0x260 sound/core/timer.c:1984
__snd_timer_user_ioctl.isra.0+0xda4/0x2490 sound/core/timer.c:2107
snd_timer_user_ioctl+0x77/0xb0 sound/core/timer.c:2128
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl fs/ioctl.c:856 [inline]
__x64_sys_ioctl+0x193/0x200 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
the dependencies between the lock to be acquired
and HARDIRQ-irq-unsafe lock:
-> (tasklist_lock){.+.+}-{2:2} {
HARDIRQ-ON-R at:
lock_acquire kernel/locking/lockdep.c:5665 [inline]
lock_acquire+0x1ab/0x570 kernel/locking/lockdep.c:5630
__raw_read_lock include/linux/rwlock_api_smp.h:150 [inline]
_raw_read_lock+0x5b/0x70 kernel/locking/spinlock.c:228
do_wait+0x284/0xce0 kernel/exit.c:1508
kernel_wait+0x9c/0x150 kernel/exit.c:1698
call_usermodehelper_exec_sync kernel/umh.c:139 [inline]
call_usermodehelper_exec_work+0xf5/0x180 kernel/umh.c:166
process_one_work+0x996/0x1610 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
SOFTIRQ-ON-R at:
lock_acquire kernel/locking/lockdep.c:5665 [inline]
lock_acquire+0x1ab/0x570 kernel/locking/lockdep.c:5630
__raw_read_lock include/linux/rwlock_api_smp.h:150 [inline]
_raw_read_lock+0x5b/0x70 kernel/locking/spinlock.c:228
do_wait+0x284/0xce0 kernel/exit.c:1508
kernel_wait+0x9c/0x150 kernel/exit.c:1698
call_usermodehelper_exec_sync kernel/umh.c:139 [inline]
call_usermodehelper_exec_work+0xf5/0x180 kernel/umh.c:166
process_one_work+0x996/0x1610 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
INITIAL USE at:
lock_acquire kernel/locking/lockdep.c:5665 [inline]
lock_acquire+0x1ab/0x570 kernel/locking/lockdep.c:5630
__raw_write_lock_irq include/linux/rwlock_api_smp.h:195 [inline]
_raw_write_lock_irq+0x32/0x50 kernel/locking/spinlock.c:326
copy_process+0x445e/0x7020 kernel/fork.c:2374
kernel_clone+0xe7/0xab0 kernel/fork.c:2655
user_mode_thread+0xad/0xe0 kernel/fork.c:2724
rest_init+0x23/0x270 init/main.c:691
arch_call_rest_init+0xf/0x14 init/main.c:882
start_kernel+0x46e/0x48f init/main.c:1137
secondary_startup_64_no_verify+0xce/0xdb
INITIAL READ USE at:
lock_acquire kernel/locking/lockdep.c:5665 [inline]
lock_acquire+0x1ab/0x570 kernel/locking/lockdep.c:5630
__raw_read_lock include/linux/rwlock_api_smp.h:150 [inline]
_raw_read_lock+0x5b/0x70 kernel/locking/spinlock.c:228
do_wait+0x284/0xce0 kernel/exit.c:1508
kernel_wait+0x9c/0x150 kernel/exit.c:1698
call_usermodehelper_exec_sync kernel/umh.c:139 [inline]
call_usermodehelper_exec_work+0xf5/0x180 kernel/umh.c:166
process_one_work+0x996/0x1610 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
}
... key at: [<ffffffff8ba0a098>] tasklist_lock+0x18/0x40
... acquired at:
lock_acquire kernel/locking/lockdep.c:5665 [inline]
lock_acquire+0x1ab/0x570 kernel/locking/lockdep.c:5630
__raw_read_lock include/linux/rwlock_api_smp.h:150 [inline]
_raw_read_lock+0x5b/0x70 kernel/locking/spinlock.c:228
send_sigurg+0xad/0xaf0 fs/fcntl.c:832
sk_send_sigurg+0x76/0x310 net/core/sock.c:3275
tcp_check_urg net/ipv4/tcp_input.c:5596 [inline]
tcp_urg+0x38e/0xb40 net/ipv4/tcp_input.c:5637
tcp_rcv_established+0x81d/0x20e0 net/ipv4/tcp_input.c:5984
tcp_v4_do_rcv+0x66c/0x9b0 net/ipv4/tcp_ipv4.c:1659
sk_backlog_rcv include/net/sock.h:1047 [inline]
__release_sock+0x134/0x3b0 net/core/sock.c:2849
release_sock+0x54/0x1b0 net/core/sock.c:3404
sk_stream_wait_memory+0x608/0xed0 net/core/stream.c:145
tcp_sendmsg_locked+0x7d5/0x2fd0 net/ipv4/tcp.c:1410
tcp_sendmsg+0x2b/0x40 net/ipv4/tcp.c:1448
inet_sendmsg+0x99/0xe0 net/ipv4/af_inet.c:819
sock_sendmsg_nosec net/socket.c:714 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:734
__sys_sendto+0x21a/0x320 net/socket.c:2119
__do_sys_sendto net/socket.c:2131 [inline]
__se_sys_sendto net/socket.c:2127 [inline]
__x64_sys_sendto+0xdd/0x1b0 net/socket.c:2127
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
stack backtrace:
CPU: 1 PID: 8409 Comm: syz-executor.3 Not tainted 5.19.0-rc6-syzkaller-00104-g72a8e05d4f66 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
print_bad_irq_dependency kernel/locking/lockdep.c:2609 [inline]
check_irq_usage.cold+0x4c1/0x6b0 kernel/locking/lockdep.c:2848
check_prev_add kernel/locking/lockdep.c:3099 [inline]
check_prevs_add kernel/locking/lockdep.c:3214 [inline]
validate_chain kernel/locking/lockdep.c:3829 [inline]
__lock_acquire+0x2ad6/0x5660 kernel/locking/lockdep.c:5053
lock_acquire kernel/locking/lockdep.c:5665 [inline]
lock_acquire+0x1ab/0x570 kernel/locking/lockdep.c:5630
__raw_read_lock include/linux/rwlock_api_smp.h:150 [inline]
_raw_read_lock+0x5b/0x70 kernel/locking/spinlock.c:228
send_sigurg+0xad/0xaf0 fs/fcntl.c:832
sk_send_sigurg+0x76/0x310 net/core/sock.c:3275
tcp_check_urg net/ipv4/tcp_input.c:5596 [inline]
tcp_urg+0x38e/0xb40 net/ipv4/tcp_input.c:5637
tcp_rcv_established+0x81d/0x20e0 net/ipv4/tcp_input.c:5984
tcp_v4_do_rcv+0x66c/0x9b0 net/ipv4/tcp_ipv4.c:1659
sk_backlog_rcv include/net/sock.h:1047 [inline]
__release_sock+0x134/0x3b0 net/core/sock.c:2849
release_sock+0x54/0x1b0 net/core/sock.c:3404
sk_stream_wait_memory+0x608/0xed0 net/core/stream.c:145
tcp_sendmsg_locked+0x7d5/0x2fd0 net/ipv4/tcp.c:1410
tcp_sendmsg+0x2b/0x40 net/ipv4/tcp.c:1448
inet_sendmsg+0x99/0xe0 net/ipv4/af_inet.c:819
sock_sendmsg_nosec net/socket.c:714 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:734
__sys_sendto+0x21a/0x320 net/socket.c:2119
__do_sys_sendto net/socket.c:2131 [inline]
__se_sys_sendto net/socket.c:2127 [inline]
__x64_sys_sendto+0xdd/0x1b0 net/socket.c:2127
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fa308e89109
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa309f3f168 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007fa308f9bf60 RCX: 00007fa308e89109
RDX: ffffffffffffff58 RSI: 0000000020000140 RDI: 0000000000000003
RBP: 00007fa308ee305d R08: 0000000020000100 R09: 0000000000000010
R10: 0000000020008005 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffccd77247f R14: 00007fa309f3f300 R15: 0000000000022000
</TASK>