=====================================================
WARNING: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected
6.8.0-syzkaller-08951-gfe46a7dd189e #0 Not tainted
-----------------------------------------------------
syz-executor.3/8627 [HC0[0]:SC0[2]:HE0:SE0] is trying to acquire:
ffff88805e00d200 (&stab->lock){+.-.}-{2:2}, at: spin_lock_bh include/linux/spinlock.h:356 [inline]
ffff88805e00d200 (&stab->lock){+.-.}-{2:2}, at: __sock_map_delete net/core/sock_map.c:414 [inline]
ffff88805e00d200 (&stab->lock){+.-.}-{2:2}, at: sock_map_delete_elem+0x97/0x140 net/core/sock_map.c:446
and this task is already holding:
ffff888016ebf020 ((worker)->lock){-...}-{2:2}, at: kthread_queue_work+0x27/0x180 kernel/kthread.c:1019
which would create a new lock dependency:
((worker)->lock){-...}-{2:2} -> (&stab->lock){+.-.}-{2:2}
but this new dependency connects a HARDIRQ-irq-safe lock:
((worker)->lock){-...}-{2:2}
... which became HARDIRQ-irq-safe at:
lock_acquire+0x1e4/0x530 kernel/locking/lockdep.c:5754
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162
kthread_queue_work+0x27/0x180 kernel/kthread.c:1019
pit_timer_fn+0xa5/0x180 arch/x86/kvm/i8254.c:276
__run_hrtimer kernel/time/hrtimer.c:1692 [inline]
__hrtimer_run_queues+0x595/0xd00 kernel/time/hrtimer.c:1756
hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1818
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
__sysvec_apic_timer_interrupt+0x107/0x3a0 arch/x86/kernel/apic/apic.c:1049
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1043
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
_raw_spin_unlock_irqrestore+0xd8/0x140 kernel/locking/spinlock.c:194
kvm_vm_ioctl_set_pit+0x83/0x130 arch/x86/kvm/x86.c:6362
kvm_arch_vm_ioctl+0xd4a/0x1710 arch/x86/kvm/x86.c:7098
kvm_vm_ioctl+0x84c/0xd30 arch/x86/kvm/../../../virt/kvm/kvm_main.c:5331
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:904 [inline]
__se_sys_ioctl+0xfc/0x170 fs/ioctl.c:890
do_syscall_64+0xfb/0x240
entry_SYSCALL_64_after_hwframe+0x6d/0x75
to a HARDIRQ-irq-unsafe lock:
(&stab->lock){+.-.}-{2:2}
... which became HARDIRQ-irq-unsafe at:
...
lock_acquire+0x1e4/0x530 kernel/locking/lockdep.c:5754
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline]
_raw_spin_lock_bh+0x35/0x50 kernel/locking/spinlock.c:178
spin_lock_bh include/linux/spinlock.h:356 [inline]
__sock_map_delete net/core/sock_map.c:414 [inline]
sock_map_delete_elem+0x97/0x140 net/core/sock_map.c:446
0xffffffffa0002377
bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline]
__bpf_prog_run include/linux/filter.h:657 [inline]
bpf_prog_run include/linux/filter.h:664 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline]
bpf_trace_run2+0x204/0x420 kernel/trace/bpf_trace.c:2420
__traceiter_kfree+0x2b/0x50 include/trace/events/kmem.h:94
trace_kfree include/trace/events/kmem.h:94 [inline]
kfree+0x291/0x380 mm/slub.c:4377
ext4_free_ext_path fs/ext4/extents.c:125 [inline]
ext4_ext_remove_space+0x435f/0x4db0 fs/ext4/extents.c:3042
ext4_ext_truncate+0x159/0x2b0 fs/ext4/extents.c:4440
ext4_truncate+0xa08/0x1130 fs/ext4/inode.c:4146
ext4_evict_inode+0x8ff/0xf30 fs/ext4/inode.c:258
evict+0x2a8/0x630 fs/inode.c:667
d_delete_notify include/linux/fsnotify.h:307 [inline]
vfs_rmdir+0x38f/0x4c0 fs/namei.c:4222
do_rmdir+0x3b5/0x580 fs/namei.c:4268
__do_sys_unlinkat fs/namei.c:4444 [inline]
__se_sys_unlinkat fs/namei.c:4438 [inline]
__x64_sys_unlinkat+0xe0/0xf0 fs/namei.c:4438
do_syscall_64+0xfb/0x240
entry_SYSCALL_64_after_hwframe+0x6d/0x75
other info that might help us debug this:
Possible interrupt unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&stab->lock);
local_irq_disable();
lock((worker)->lock);
lock(&stab->lock);
<Interrupt>
lock((worker)->lock);
*** DEADLOCK ***
4 locks held by syz-executor.3/8627:
#0: ffff888077182010 (&sb->s_type->i_mutex_key#9){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:793 [inline]
#0: ffff888077182010 (&sb->s_type->i_mutex_key#9){+.+.}-{3:3}, at: __sock_release net/socket.c:658 [inline]
#0: ffff888077182010 (&sb->s_type->i_mutex_key#9){+.+.}-{3:3}, at: sock_close+0x90/0x240 net/socket.c:1421
#1: ffffffff8e1373b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:291 [inline]
#1: ffffffff8e1373b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x39a/0x820 kernel/rcu/tree_exp.h:939
#2: ffff888016ebf020 ((worker)->lock){-...}-{2:2}, at: kthread_queue_work+0x27/0x180 kernel/kthread.c:1019
#3: ffffffff8e132020 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
#3: ffffffff8e132020 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline]
#3: ffffffff8e132020 (rcu_read_lock){....}-{1:2}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2380 [inline]
#3: ffffffff8e132020 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run2+0x114/0x420 kernel/trace/bpf_trace.c:2420
the dependencies between HARDIRQ-irq-safe lock and the holding lock:
-> ((worker)->lock){-...}-{2:2} {
IN-HARDIRQ-W at:
lock_acquire+0x1e4/0x530 kernel/locking/lockdep.c:5754
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162
kthread_queue_work+0x27/0x180 kernel/kthread.c:1019
pit_timer_fn+0xa5/0x180 arch/x86/kvm/i8254.c:276
__run_hrtimer kernel/time/hrtimer.c:1692 [inline]
__hrtimer_run_queues+0x595/0xd00 kernel/time/hrtimer.c:1756
hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1818
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
__sysvec_apic_timer_interrupt+0x107/0x3a0 arch/x86/kernel/apic/apic.c:1049
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1043
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
_raw_spin_unlock_irqrestore+0xd8/0x140 kernel/locking/spinlock.c:194
kvm_vm_ioctl_set_pit+0x83/0x130 arch/x86/kvm/x86.c:6362
kvm_arch_vm_ioctl+0xd4a/0x1710 arch/x86/kvm/x86.c:7098
kvm_vm_ioctl+0x84c/0xd30 arch/x86/kvm/../../../virt/kvm/kvm_main.c:5331
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:904 [inline]
__se_sys_ioctl+0xfc/0x170 fs/ioctl.c:890
do_syscall_64+0xfb/0x240
entry_SYSCALL_64_after_hwframe+0x6d/0x75
INITIAL USE at:
lock_acquire+0x1e4/0x530 kernel/locking/lockdep.c:5754
__raw_spin_lock_irq include/linux/spinlock_api_smp.h:119 [inline]
_raw_spin_lock_irq+0xd3/0x120 kernel/locking/spinlock.c:170
kthread_worker_fn+0x236/0xab0 kernel/kthread.c:828
kthread+0x2f0/0x390 kernel/kthread.c:388
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243
}
... key at: [<ffffffff926a8120>] __kthread_create_worker.__key+0x0/0x20
the dependencies between the lock to be acquired
and HARDIRQ-irq-unsafe lock:
-> (&stab->lock){+.-.}-{2:2} {
HARDIRQ-ON-W at:
lock_acquire+0x1e4/0x530 kernel/locking/lockdep.c:5754
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline]
_raw_spin_lock_bh+0x35/0x50 kernel/locking/spinlock.c:178
spin_lock_bh include/linux/spinlock.h:356 [inline]
__sock_map_delete net/core/sock_map.c:414 [inline]
sock_map_delete_elem+0x97/0x140 net/core/sock_map.c:446
0xffffffffa0002377
bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline]
__bpf_prog_run include/linux/filter.h:657 [inline]
bpf_prog_run include/linux/filter.h:664 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline]
bpf_trace_run2+0x204/0x420 kernel/trace/bpf_trace.c:2420
__traceiter_kfree+0x2b/0x50 include/trace/events/kmem.h:94
trace_kfree include/trace/events/kmem.h:94 [inline]
kfree+0x291/0x380 mm/slub.c:4377
ext4_free_ext_path fs/ext4/extents.c:125 [inline]
ext4_ext_remove_space+0x435f/0x4db0 fs/ext4/extents.c:3042
ext4_ext_truncate+0x159/0x2b0 fs/ext4/extents.c:4440
ext4_truncate+0xa08/0x1130 fs/ext4/inode.c:4146
ext4_evict_inode+0x8ff/0xf30 fs/ext4/inode.c:258
evict+0x2a8/0x630 fs/inode.c:667
d_delete_notify include/linux/fsnotify.h:307 [inline]
vfs_rmdir+0x38f/0x4c0 fs/namei.c:4222
do_rmdir+0x3b5/0x580 fs/namei.c:4268
__do_sys_unlinkat fs/namei.c:4444 [inline]
__se_sys_unlinkat fs/namei.c:4438 [inline]
__x64_sys_unlinkat+0xe0/0xf0 fs/namei.c:4438
do_syscall_64+0xfb/0x240
entry_SYSCALL_64_after_hwframe+0x6d/0x75
IN-SOFTIRQ-W at:
lock_acquire+0x1e4/0x530 kernel/locking/lockdep.c:5754
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline]
_raw_spin_lock_bh+0x35/0x50 kernel/locking/spinlock.c:178
spin_lock_bh include/linux/spinlock.h:356 [inline]
__sock_map_delete net/core/sock_map.c:414 [inline]
sock_map_delete_elem+0x97/0x140 net/core/sock_map.c:446
0xffffffffa0002377
bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline]
__bpf_prog_run include/linux/filter.h:657 [inline]
bpf_prog_run include/linux/filter.h:664 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline]
bpf_trace_run2+0x204/0x420 kernel/trace/bpf_trace.c:2420
__traceiter_kfree+0x2b/0x50 include/trace/events/kmem.h:94
trace_kfree include/trace/events/kmem.h:94 [inline]
kfree+0x291/0x380 mm/slub.c:4377
security_task_free+0xa0/0xc0 security/security.c:3026
__put_task_struct+0xf9/0x290 kernel/fork.c:976
put_task_struct include/linux/sched/task.h:138 [inline]
delayed_put_task_struct+0x115/0x2d0 kernel/exit.c:229
rcu_do_batch kernel/rcu/tree.c:2196 [inline]
rcu_core+0xafd/0x1830 kernel/rcu/tree.c:2471
__do_softirq+0x2bc/0x943 kernel/softirq.c:554
run_ksoftirqd+0xc5/0x130 kernel/softirq.c:924
smpboot_thread_fn+0x544/0xa30 kernel/smpboot.c:164
kthread+0x2f0/0x390 kernel/kthread.c:388
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243
INITIAL USE at:
lock_acquire+0x1e4/0x530 kernel/locking/lockdep.c:5754
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline]
_raw_spin_lock_bh+0x35/0x50 kernel/locking/spinlock.c:178
spin_lock_bh include/linux/spinlock.h:356 [inline]
__sock_map_delete net/core/sock_map.c:414 [inline]
sock_map_delete_elem+0x97/0x140 net/core/sock_map.c:446
0xffffffffa0002377
bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline]
__bpf_prog_run include/linux/filter.h:657 [inline]
bpf_prog_run include/linux/filter.h:664 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline]
bpf_trace_run2+0x204/0x420 kernel/trace/bpf_trace.c:2420
__traceiter_kfree+0x2b/0x50 include/trace/events/kmem.h:94
trace_kfree include/trace/events/kmem.h:94 [inline]
kfree+0x291/0x380 mm/slub.c:4377
ext4_free_ext_path fs/ext4/extents.c:125 [inline]
ext4_ext_remove_space+0x435f/0x4db0 fs/ext4/extents.c:3042
ext4_ext_truncate+0x159/0x2b0 fs/ext4/extents.c:4440
ext4_truncate+0xa08/0x1130 fs/ext4/inode.c:4146
ext4_evict_inode+0x8ff/0xf30 fs/ext4/inode.c:258
evict+0x2a8/0x630 fs/inode.c:667
d_delete_notify include/linux/fsnotify.h:307 [inline]
vfs_rmdir+0x38f/0x4c0 fs/namei.c:4222
do_rmdir+0x3b5/0x580 fs/namei.c:4268
__do_sys_unlinkat fs/namei.c:4444 [inline]
__se_sys_unlinkat fs/namei.c:4438 [inline]
__x64_sys_unlinkat+0xe0/0xf0 fs/namei.c:4438
do_syscall_64+0xfb/0x240
entry_SYSCALL_64_after_hwframe+0x6d/0x75
}
... key at: [<ffffffff948692e0>] sock_map_alloc.__key+0x0/0x20
... acquired at:
lock_acquire+0x1e4/0x530 kernel/locking/lockdep.c:5754
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline]
_raw_spin_lock_bh+0x35/0x50 kernel/locking/spinlock.c:178
spin_lock_bh include/linux/spinlock.h:356 [inline]
__sock_map_delete net/core/sock_map.c:414 [inline]
sock_map_delete_elem+0x97/0x140 net/core/sock_map.c:446
bpf_prog_bc20a984d57ef3f1+0x66/0x6a
bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline]
__bpf_prog_run include/linux/filter.h:657 [inline]
bpf_prog_run include/linux/filter.h:664 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline]
bpf_trace_run2+0x204/0x420 kernel/trace/bpf_trace.c:2420
trace_sched_kthread_work_queue_work include/trace/events/sched.h:64 [inline]
kthread_insert_work+0x3f4/0x460 kernel/kthread.c:993
kthread_queue_work+0xff/0x180 kernel/kthread.c:1021
synchronize_rcu_expedited_queue_work kernel/rcu/tree_exp.h:469 [inline]
synchronize_rcu_expedited+0x593/0x820 kernel/rcu/tree_exp.h:949
synchronize_rcu+0x136/0x3e0 kernel/rcu/tree.c:3611
packet_release+0x9ef/0xcc0 net/packet/af_packet.c:3169
__sock_release net/socket.c:659 [inline]
sock_close+0xbc/0x240 net/socket.c:1421
__fput+0x429/0x8a0 fs/file_table.c:422
__do_sys_close fs/open.c:1556 [inline]
__se_sys_close fs/open.c:1541 [inline]
__x64_sys_close+0x7f/0x110 fs/open.c:1541
do_syscall_64+0xfb/0x240
entry_SYSCALL_64_after_hwframe+0x6d/0x75
stack backtrace:
CPU: 1 PID: 8627 Comm: syz-executor.3 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
print_bad_irq_dependency kernel/locking/lockdep.c:2626 [inline]
check_irq_usage kernel/locking/lockdep.c:2865 [inline]
check_prev_add kernel/locking/lockdep.c:3138 [inline]
check_prevs_add kernel/locking/lockdep.c:3253 [inline]
validate_chain+0x4dc7/0x58e0 kernel/locking/lockdep.c:3869
__lock_acquire+0x1346/0x1fd0 kernel/locking/lockdep.c:5137
lock_acquire+0x1e4/0x530 kernel/locking/lockdep.c:5754
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline]
_raw_spin_lock_bh+0x35/0x50 kernel/locking/spinlock.c:178
spin_lock_bh include/linux/spinlock.h:356 [inline]
__sock_map_delete net/core/sock_map.c:414 [inline]
sock_map_delete_elem+0x97/0x140 net/core/sock_map.c:446
bpf_prog_bc20a984d57ef3f1+0x66/0x6a
bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline]
__bpf_prog_run include/linux/filter.h:657 [inline]
bpf_prog_run include/linux/filter.h:664 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline]
bpf_trace_run2+0x204/0x420 kernel/trace/bpf_trace.c:2420
trace_sched_kthread_work_queue_work include/trace/events/sched.h:64 [inline]
kthread_insert_work+0x3f4/0x460 kernel/kthread.c:993
kthread_queue_work+0xff/0x180 kernel/kthread.c:1021
synchronize_rcu_expedited_queue_work kernel/rcu/tree_exp.h:469 [inline]
synchronize_rcu_expedited+0x593/0x820 kernel/rcu/tree_exp.h:949
synchronize_rcu+0x136/0x3e0 kernel/rcu/tree.c:3611
packet_release+0x9ef/0xcc0 net/packet/af_packet.c:3169
__sock_release net/socket.c:659 [inline]
sock_close+0xbc/0x240 net/socket.c:1421
__fput+0x429/0x8a0 fs/file_table.c:422
__do_sys_close fs/open.c:1556 [inline]
__se_sys_close fs/open.c:1541 [inline]
__x64_sys_close+0x7f/0x110 fs/open.c:1541
do_syscall_64+0xfb/0x240
entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f6005a7cd5a
Code: 48 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c 24 0c e8 03 7f 02 00 8b 7c 24 0c 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 36 89 d7 89 44 24 0c e8 63 7f 02 00 8b 44 24
RSP: 002b:00007fffdc773930 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 000000000000000b RCX: 00007f6005a7cd5a
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000000000a
RBP: 0000000000000032 R08: 0000001b30820000 R09: 0000000000000148
R10: 0000000081360ad3 R11: 0000000000000293 R12: 00007f6005605530
R13: ffffffffffffffff R14: 00007f6005600000 R15: 0000000000030916
</TASK>
------------[ cut here ]------------
raw_local_irq_restore() called with IRQs enabled
WARNING: CPU: 1 PID: 8627 at kernel/locking/irqflag-debug.c:10 warn_bogus_irq_restore+0x29/0x40 kernel/locking/irqflag-debug.c:10
Modules linked in:
CPU: 1 PID: 8627 Comm: syz-executor.3 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:warn_bogus_irq_restore+0x29/0x40 kernel/locking/irqflag-debug.c:10
Code: 90 f3 0f 1e fa 90 80 3d bd 16 05 04 00 74 06 90 c3 cc cc cc cc c6 05 ae 16 05 04 01 90 48 c7 c7 e0 b9 aa 8b e8 88 34 ec f5 90 <0f> 0b 90 90 90 c3 cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 0f 1f
RSP: 0018:ffffc9000db8f838 EFLAGS: 00010246
RAX: ebf0726e76c02900 RBX: 1ffff92001b71f0c RCX: ffff88805fac5a00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000db8f8d0 R08: ffffffff8157cb22 R09: fffffbfff1bf9650
R10: dffffc0000000000 R11: fffffbfff1bf9650 R12: dffffc0000000000
R13: 1ffff92001b71f08 R14: ffffc9000db8f860 R15: 0000000000000246
FS: 0000555584f96480(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30429000 CR3: 00000000112b6000 CR4: 00000000003506f0
Call Trace:
<TASK>
__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
_raw_spin_unlock_irqrestore+0x120/0x140 kernel/locking/spinlock.c:194
kthread_queue_work+0x110/0x180 kernel/kthread.c:1024
synchronize_rcu_expedited_queue_work kernel/rcu/tree_exp.h:469 [inline]
synchronize_rcu_expedited+0x593/0x820 kernel/rcu/tree_exp.h:949
synchronize_rcu+0x136/0x3e0 kernel/rcu/tree.c:3611
packet_release+0x9ef/0xcc0 net/packet/af_packet.c:3169
__sock_release net/socket.c:659 [inline]
sock_close+0xbc/0x240 net/socket.c:1421
__fput+0x429/0x8a0 fs/file_table.c:422
__do_sys_close fs/open.c:1556 [inline]
__se_sys_close fs/open.c:1541 [inline]
__x64_sys_close+0x7f/0x110 fs/open.c:1541
do_syscall_64+0xfb/0x240
entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f6005a7cd5a
Code: 48 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c 24 0c e8 03 7f 02 00 8b 7c 24 0c 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 36 89 d7 89 44 24 0c e8 63 7f 02 00 8b 44 24
RSP: 002b:00007fffdc773930 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 000000000000000b RCX: 00007f6005a7cd5a
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000000000a
RBP: 0000000000000032 R08: 0000001b30820000 R09: 0000000000000148
R10: 0000000081360ad3 R11: 0000000000000293 R12: 00007f6005605530
R13: ffffffffffffffff R14: 00007f6005600000 R15: 0000000000030916
</TASK>