------------[ cut here ]------------
WARNING: CPU: 1 PID: 0 at net/ipv4/tcp_timer.c:470 tcp_retransmit_timer+0x19c5/0x33f0 net/ipv4/tcp_timer.c:470
Modules linked in:
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.19.0-rc7-syzkaller-01445-g3c47fb2f4c4d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
RIP: 0010:tcp_retransmit_timer+0x19c5/0x33f0 net/ipv4/tcp_timer.c:470
Code: 25 18 00 00 8b 95 b4 07 00 00 48 89 ef 8b 74 24 10 e8 ff ca ff ff 41 89 c5 0f b6 c0 89 44 24 10 e9 49 f2 ff ff e8 eb 0f 99 f9 <0f> 0b e9 3c eb ff ff e8 df 0f 99 f9 48 8b 9c 24 c8 00 00 00 48 85
RSP: 0018:ffffc900001e0b48 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000100
RDX: ffff888011aa9d80 RSI: ffffffff87e16195 RDI: ffff888025a91a80
RBP: ffff888025a91800 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffff888025a91930
R13: ffffffff8ba0f200 R14: 0000000000000000 R15: ffff888025a91830
FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002069d000 CR3: 000000001c692000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
tcp_write_timer_handler net/ipv4/tcp_timer.c:620 [inline]
tcp_write_timer_handler+0x4de/0x9f0 net/ipv4/tcp_timer.c:594
tcp_write_timer+0xa2/0x2b0 net/ipv4/tcp_timer.c:637
call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1474
expire_timers kernel/time/timer.c:1519 [inline]
__run_timers.part.0+0x679/0xa80 kernel/time/timer.c:1790
__run_timers kernel/time/timer.c:1768 [inline]
run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1803
__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
RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:29 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline]
RIP: 0010:arch_irqs_disabled arch/x86/include/asm/irqflags.h:130 [inline]
RIP: 0010:acpi_safe_halt drivers/acpi/processor_idle.c:112 [inline]
RIP: 0010:acpi_idle_do_entry+0x1c9/0x240 drivers/acpi/processor_idle.c:554
Code: 89 de e8 5a 90 fd f7 84 db 75 98 e8 51 94 fd f7 e8 4c e3 03 f8 66 90 e8 45 94 fd f7 0f 00 2d 3e 54 b7 00 e8 39 94 fd f7 fb f4 <9c> 5b 81 e3 00 02 00 00 fa 31 ff 48 89 de e8 84 90 fd f7 48 85 db
RSP: 0018:ffffc90000177d20 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff888011aa9d80 RSI: ffffffff897cdd47 RDI: 0000000000000000
RBP: ffff8881457a9064 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
R13: ffff8881457a9000 R14: ffff8881457a9064 R15: ffff888018293804
acpi_idle_enter+0x369/0x510 drivers/acpi/processor_idle.c:691
cpuidle_enter_state+0x1b1/0xc80 drivers/cpuidle/cpuidle.c:237
cpuidle_enter+0x4a/0xa0 drivers/cpuidle/cpuidle.c:351
call_cpuidle kernel/sched/idle.c:155 [inline]
cpuidle_idle_call kernel/sched/idle.c:236 [inline]
do_idle+0x3e8/0x590 kernel/sched/idle.c:303
cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:400
start_secondary+0x21d/0x2b0 arch/x86/kernel/smpboot.c:266
secondary_startup_64_no_verify+0xce/0xdb
----------------
Code disassembly (best guess):
0: 89 de mov %ebx,%esi
2: e8 5a 90 fd f7 callq 0xf7fd9061
7: 84 db test %bl,%bl
9: 75 98 jne 0xffffffa3
b: e8 51 94 fd f7 callq 0xf7fd9461
10: e8 4c e3 03 f8 callq 0xf803e361
15: 66 90 xchg %ax,%ax
17: e8 45 94 fd f7 callq 0xf7fd9461
1c: 0f 00 2d 3e 54 b7 00 verw 0xb7543e(%rip) # 0xb75461
23: e8 39 94 fd f7 callq 0xf7fd9461
28: fb sti
29: f4 hlt
* 2a: 9c pushfq <-- trapping instruction
2b: 5b pop %rbx
2c: 81 e3 00 02 00 00 and $0x200,%ebx
32: fa cli
33: 31 ff xor %edi,%edi
35: 48 89 de mov %rbx,%rsi
38: e8 84 90 fd f7 callq 0xf7fd90c1
3d: 48 85 db test %rbx,%rbx