rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-...0: (3 ticks this GP) idle=167/1/0x4000000000000000 softirq=164759/164759 fqs=3141
(detected by 1, t=10502 jiffies, g=169933, q=1683)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 3647 Comm: syz-executor.2 Not tainted 5.16.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:rcu_read_lock include/linux/rcupdate.h:689 [inline]
RIP: 0010:advance_sched+0x4b5/0x9a0 net/sched/sch_taprio.c:767
Code: 31 d2 31 f6 b9 02 00 00 00 68 a7 06 5f 87 48 c7 c7 a0 3d b8 8b e8 0b ab fd f9 e8 76 f3 03 fa 31 ff 89 c3 89 c6 e8 2b 8f 18 fa <84> db 58 0f 84 79 01 00 00 e8 3d 8b 18 fa 48 8b 7c 24 10 e8 63 fe
RSP: 0018:ffffc90000007dc8 EFLAGS: 00000046
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffff888023441d00
RDX: 0000000000000000 RSI: ffff888023441d00 RDI: 0000000000000003
RBP: 0000000000001dc1 R08: 0000000000000000 R09: 0000000000000001
R10: ffffffff875f06e5 R11: 0000000000000000 R12: ffff88801d642d80
R13: 16c66bcd43e295ce R14: ffff88801d642da0 R15: 16c66bcd43e295ce
FS: 0000555555f95400(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fedef3c4dd8 CR3: 0000000075fd7000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
__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:1086 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103
sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1097
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:lock_acquire+0x1ef/0x510 kernel/locking/lockdep.c:5605
Code: c6 a5 7e 83 f8 01 0f 85 b4 02 00 00 9c 58 f6 c4 02 0f 85 9f 02 00 00 48 83 7c 24 08 00 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c3 48 c7 03 00 00 00 00 48 c7 43 08 00 00 00 00 48 8b 84 24
RSP: 0018:ffffc9000299fa90 EFLAGS: 00000206
RAX: dffffc0000000000 RBX: 1ffff92000533f54 RCX: 00000000000085be
RDX: 1ffff110046884eb RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff8ff76a37
R10: fffffbfff1feed46 R11: 0000000000000001 R12: 0000000000000001
R13: 0000000000000000 R14: ffff88807840b928 R15: 0000000000000000
__might_fault mm/memory.c:5253 [inline]
__might_fault+0x104/0x170 mm/memory.c:5238
_copy_to_user+0x27/0x150 lib/usercopy.c:28
copy_to_user include/linux/uaccess.h:200 [inline]
copy_entries_to_user net/ipv4/netfilter/ip_tables.c:837 [inline]
get_entries net/ipv4/netfilter/ip_tables.c:1024 [inline]
do_ipt_get_ctl+0x6a6/0x9d0 net/ipv4/netfilter/ip_tables.c:1663
nf_getsockopt+0x72/0xd0 net/netfilter/nf_sockopt.c:116
ip_getsockopt net/ipv4/ip_sockglue.c:1786 [inline]
ip_getsockopt+0x164/0x1c0 net/ipv4/ip_sockglue.c:1765
tcp_getsockopt+0x86/0xd0 net/ipv4/tcp.c:4251
__sys_getsockopt+0x21f/0x5f0 net/socket.c:2220
__do_sys_getsockopt net/socket.c:2235 [inline]
__se_sys_getsockopt net/socket.c:2232 [inline]
__x64_sys_getsockopt+0xba/0x150 net/socket.c:2232
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+0x44/0xae
RIP: 0033:0x7fedef2e34ba
Code: 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 37 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fedef928688 EFLAGS: 00000212 ORIG_RAX: 0000000000000037
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fedef2e34ba
RDX: 0000000000000041 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 00007fedef9286b0 R08: 00007fedef9286ac R09: fefefefefeff646b
R10: 00007fedef928710 R11: 0000000000000212 R12: 00007fedef928710
R13: 0000000000000003 R14: 00007fedef9286ac R15: 00007fedef3c5aa0
</TASK>
----------------
Code disassembly (best guess):
0: 31 d2 xor %edx,%edx
2: 31 f6 xor %esi,%esi
4: b9 02 00 00 00 mov $0x2,%ecx
9: 68 a7 06 5f 87 pushq $0xffffffff875f06a7
e: 48 c7 c7 a0 3d b8 8b mov $0xffffffff8bb83da0,%rdi
15: e8 0b ab fd f9 callq 0xf9fdab25
1a: e8 76 f3 03 fa callq 0xfa03f395
1f: 31 ff xor %edi,%edi
21: 89 c3 mov %eax,%ebx
23: 89 c6 mov %eax,%esi
25: e8 2b 8f 18 fa callq 0xfa188f55
* 2a: 84 db test %bl,%bl <-- trapping instruction
2c: 58 pop %rax
2d: 0f 84 79 01 00 00 je 0x1ac
33: e8 3d 8b 18 fa callq 0xfa188b75
38: 48 8b 7c 24 10 mov 0x10(%rsp),%rdi
3d: e8 .byte 0xe8
3e: 63 fe movsxd %esi,%edi