rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10433 ticks this GP) idle=7d2c/1/0x4000000000000000 softirq=33876/46984 fqs=5247
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1027643          0            0
rcu: 	cputime:    24799      27680           90   ==> 52480(ms)
rcu: 	(t=10500 jiffies g=21041 q=2960 ncpus=2)
CPU: 0 UID: 0 PID: 9953 Comm: syz.4.1660 Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e-dirty #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:_raw_spin_unlock_irq+0x29/0x50
Code: 90 f3 0f 1e fa 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 4a 25 2d f6 48 89 df e8 a2 bc 2d f6 e8 0d 8e 56 f6 fb bf 01 00 00 00 <e8> 72 bc 1f f6 65 8b 05 1b e9 2e 07 85 c0 74 07 5b e9 81 4c 00 00
RSP: 0018:ffffc90000007c90 EFLAGS: 00000286
RAX: 044f476ec52adb00 RBX: ffff88804b025940 RCX: 044f476ec52adb00
RDX: 0000000000000002 RSI: ffffffff8d998940 RDI: 0000000000000001
RBP: ffffc90000007e10 R08: ffffffff8fa1e9f7 R09: 1ffffffff1f43d3e
R10: dffffc0000000000 R11: fffffbfff1f43d3f R12: ffff88804b025940
R13: 1ffff92000000fad R14: ffff88803b59f708 R15: ffffc90000007d68
FS:  00007f75564dd6c0(0000) GS:ffff8880b861f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000034000 CR3: 000000003b6b6000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 __run_timer_base+0x60a/0x860
 run_timer_softirq+0xb7/0x180
 handle_softirqs+0x286/0x870
 __irq_exit_rcu+0xca/0x1f0
 irq_exit_rcu+0x9/0x30
 sysvec_irq_work+0xa3/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_irq_work+0x1a/0x20
RIP: 0010:console_flush_all+0x7f7/0xc40
Code: 48 21 c3 0f 85 e9 01 00 00 e8 75 e7 1e 00 48 8b 5c 24 20 4d 85 f6 75 07 e8 66 e7 1e 00 eb 06 e8 5f e7 1e 00 fb 48 8b 44 24 28 <42> 80 3c 20 00 74 08 48 89 df e8 8a 0a 82 00 48 8b 1b 48 8b 44 24
RSP: 0018:ffffc90002d1ed40 EFLAGS: 00000283
RAX: 1ffffffff1d36927 RBX: ffffffff8e9b4938 RCX: 0000000000080000
RDX: ffffc9002595e000 RSI: 0000000000003d57 RDI: 0000000000003d58
RBP: ffffc90002d1ee90 R08: ffffffff8fa1e9f7 R09: 1ffffffff1f43d3e
R10: dffffc0000000000 R11: fffffbfff1f43d3f R12: dffffc0000000000
R13: 0000000000000001 R14: 0000000000000200 R15: ffffffff8e9b48e0
 console_unlock+0xc4/0x270
 vprintk_emit+0x5b7/0x7a0
 _printk+0xcf/0x120
 __nla_validate_parse+0x2563/0x2d40
 __nla_parse+0x40/0x60
 genl_family_rcv_msg_attrs_parse+0x1c9/0x2a0
 genl_family_rcv_msg_doit+0xb8/0x300
 genl_rcv_msg+0x60e/0x790
 netlink_rcv_skb+0x208/0x470
 genl_rcv+0x28/0x40
 netlink_unicast+0x75c/0x8e0
 netlink_sendmsg+0x805/0xb30
 __sock_sendmsg+0x21c/0x270
 ____sys_sendmsg+0x505/0x830
 ___sys_sendmsg+0x21f/0x2a0
 __x64_sys_sendmsg+0x19b/0x260
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f755558e9a9
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f75564dd038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f75557b5fa0 RCX: 00007f755558e9a9
RDX: 0000000000000000 RSI: 0000200000000000 RDI: 000000000000000b
RBP: 00007f7555610d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f75557b5fa0 R15: 00007ffc0e31c798
 </TASK>
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 9953 Comm: syz.4.1660 Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e-dirty #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:native_apic_msr_eoi+0xf/0x20
Code: f8 c3 cc cc cc cc cc 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa b9 0b 08 00 00 31 c0 31 d2 0f 30 <e9> 8c 24 00 0a cc 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90
RSP: 0018:ffffc90000007ba0 EFLAGS: 00000046
RAX: 0000000000000000 RBX: ffffc90000007be8 RCX: 000000000000080b
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002
RBP: 0000000000000000 R08: ffff88804b023b0f R09: 1ffff11009604761
R10: dffffc0000000000 R11: ffffed1009604762 R12: dffffc0000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f75564dd6c0(0000) GS:ffff8880b861f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000034000 CR3: 000000003b6b6000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 __sysvec_apic_timer_interrupt+0x45/0x410
 sysvec_apic_timer_interrupt+0x52/0xc0
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:_raw_spin_unlock_irq+0x29/0x50
Code: 90 f3 0f 1e fa 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 4a 25 2d f6 48 89 df e8 a2 bc 2d f6 e8 0d 8e 56 f6 fb bf 01 00 00 00 <e8> 72 bc 1f f6 65 8b 05 1b e9 2e 07 85 c0 74 07 5b e9 81 4c 00 00
RSP: 0018:ffffc90000007c90 EFLAGS: 00000286
RAX: 044f476ec52adb00 RBX: ffff88804b025940 RCX: 044f476ec52adb00
RDX: 0000000000000002 RSI: ffffffff8d998940 RDI: 0000000000000001
RBP: ffffc90000007e10 R08: ffffffff8fa1e9f7 R09: 1ffffffff1f43d3e
R10: dffffc0000000000 R11: fffffbfff1f43d3f R12: ffff88804b025940
R13: 1ffff92000000fad R14: ffff88803b59f708 R15: ffffc90000007d68
 __run_timer_base+0x60a/0x860
 run_timer_softirq+0xb7/0x180
 handle_softirqs+0x286/0x870
 __irq_exit_rcu+0xca/0x1f0
 irq_exit_rcu+0x9/0x30
 sysvec_irq_work+0xa3/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_irq_work+0x1a/0x20
RIP: 0010:console_flush_all+0x7f7/0xc40
Code: 48 21 c3 0f 85 e9 01 00 00 e8 75 e7 1e 00 48 8b 5c 24 20 4d 85 f6 75 07 e8 66 e7 1e 00 eb 06 e8 5f e7 1e 00 fb 48 8b 44 24 28 <42> 80 3c 20 00 74 08 48 89 df e8 8a 0a 82 00 48 8b 1b 48 8b 44 24
RSP: 0018:ffffc90002d1ed40 EFLAGS: 00000283
RAX: 1ffffffff1d36927 RBX: ffffffff8e9b4938 RCX: 0000000000080000
RDX: ffffc9002595e000 RSI: 0000000000003d57 RDI: 0000000000003d58
RBP: ffffc90002d1ee90 R08: ffffffff8fa1e9f7 R09: 1ffffffff1f43d3e
R10: dffffc0000000000 R11: fffffbfff1f43d3f R12: dffffc0000000000
R13: 0000000000000001 R14: 0000000000000200 R15: ffffffff8e9b48e0
 console_unlock+0xc4/0x270
 vprintk_emit+0x5b7/0x7a0
 _printk+0xcf/0x120
 __nla_validate_parse+0x2563/0x2d40
 __nla_parse+0x40/0x60
 genl_family_rcv_msg_attrs_parse+0x1c9/0x2a0
 genl_family_rcv_msg_doit+0xb8/0x300
 genl_rcv_msg+0x60e/0x790
 netlink_rcv_skb+0x208/0x470
 genl_rcv+0x28/0x40
 netlink_unicast+0x75c/0x8e0
 netlink_sendmsg+0x805/0xb30
 __sock_sendmsg+0x21c/0x270
 ____sys_sendmsg+0x505/0x830
 ___sys_sendmsg+0x21f/0x2a0
 __x64_sys_sendmsg+0x19b/0x260
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f755558e9a9
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f75564dd038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f75557b5fa0 RCX: 00007f755558e9a9
RDX: 0000000000000000 RSI: 0000200000000000 RDI: 000000000000000b
RBP: 00007f7555610d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f75557b5fa0 R15: 00007ffc0e31c798
 </TASK>
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 9953 Comm: syz.4.1660 Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e-dirty #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:asm_sysvec_apic_timer_interrupt+0x0/0x20
Code: 56 7d 6e 0a e9 61 06 00 00 90 f3 0f 1e fa 0f 1f 00 fc 6a ff e8 11 05 00 00 48 89 c4 48 89 e7 e8 66 7c 6e 0a e9 41 06 00 00 90 <f3> 0f 1e fa 0f 1f 00 fc 6a ff e8 f1 04 00 00 48 89 c4 48 89 e7 e8
RSP: 0018:ffffc90000007c68 EFLAGS: 00000086
RAX: 044f476ec52adb00 RBX: ffff88804b025940 RCX: 044f476ec52adb00
RDX: 0000000000000002 RSI: ffffffff8d998940 RDI: 0000000000000001
RBP: ffffc90000007e10 R08: ffffffff8fa1e9f7 R09: 1ffffffff1f43d3e
R10: dffffc0000000000 R11: fffffbfff1f43d3f R12: ffff88804b025940
R13: 1ffff92000000fad R14: ffff88803b59f708 R15: ffffc90000007d68
FS:  00007f75564dd6c0(0000) GS:ffff8880b861f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000034000 CR3: 000000003b6b6000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
RIP: 0010:_raw_spin_unlock_irq+0x29/0x50
Code: 90 f3 0f 1e fa 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 4a 25 2d f6 48 89 df e8 a2 bc 2d f6 e8 0d 8e 56 f6 fb bf 01 00 00 00 <e8> 72 bc 1f f6 65 8b 05 1b e9 2e 07 85 c0 74 07 5b e9 81 4c 00 00
RSP: 0018:ffffc90000007c90 EFLAGS: 00000286
 __run_timer_base+0x60a/0x860
 run_timer_softirq+0xb7/0x180
 handle_softirqs+0x286/0x870
 __irq_exit_rcu+0xca/0x1f0
 irq_exit_rcu+0x9/0x30
 sysvec_irq_work+0xa3/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_irq_work+0x1a/0x20
RIP: 0010:console_flush_all+0x7f7/0xc40
Code: 48 21 c3 0f 85 e9 01 00 00 e8 75 e7 1e 00 48 8b 5c 24 20 4d 85 f6 75 07 e8 66 e7 1e 00 eb 06 e8 5f e7 1e 00 fb 48 8b 44 24 28 <42> 80 3c 20 00 74 08 48 89 df e8 8a 0a 82 00 48 8b 1b 48 8b 44 24
RSP: 0018:ffffc90002d1ed40 EFLAGS: 00000283
RAX: 1ffffffff1d36927 RBX: ffffffff8e9b4938 RCX: 0000000000080000
RDX: ffffc9002595e000 RSI: 0000000000003d57 RDI: 0000000000003d58
RBP: ffffc90002d1ee90 R08: ffffffff8fa1e9f7 R09: 1ffffffff1f43d3e
R10: dffffc0000000000 R11: fffffbfff1f43d3f R12: dffffc0000000000
R13: 0000000000000001 R14: 0000000000000200 R15: ffffffff8e9b48e0
 console_unlock+0xc4/0x270
 vprintk_emit+0x5b7/0x7a0
 _printk+0xcf/0x120
 __nla_validate_parse+0x2563/0x2d40
 __nla_parse+0x40/0x60
 genl_family_rcv_msg_attrs_parse+0x1c9/0x2a0
 genl_family_rcv_msg_doit+0xb8/0x300
 genl_rcv_msg+0x60e/0x790
 netlink_rcv_skb+0x208/0x470
 genl_rcv+0x28/0x40
 netlink_unicast+0x75c/0x8e0
 netlink_sendmsg+0x805/0xb30
 __sock_sendmsg+0x21c/0x270
 ____sys_sendmsg+0x505/0x830
 ___sys_sendmsg+0x21f/0x2a0
 __x64_sys_sendmsg+0x19b/0x260
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f755558e9a9
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f75564dd038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f75557b5fa0 RCX: 00007f755558e9a9
RDX: 0000000000000000 RSI: 0000200000000000 RDI: 000000000000000b
RBP: 00007f7555610d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f75557b5fa0 R15: 00007ffc0e31c798
 </TASK>
