watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [syz-executor.3:6770]
Modules linked in:
CPU: 0 PID: 6770 Comm: syz-executor.3 Tainted: G        W         5.4.274-syzkaller-00002-g6f97bd951d82 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:ip6_nd_hdr net/ipv6/ndisc.c:453 [inline]
RIP: 0010:ndisc_send_skb+0x423/0xc30 net/ipv6/ndisc.c:503
Code: 48 8b 1b 31 ff 48 89 de e8 0a 3e 89 fd 48 85 db 74 30 e8 a0 3a 89 fd 48 81 c3 1c 02 00 00 48 89 d8 48 c1 e8 03 42 0f b6 04 20 <84> c0 0f 85 09 06 00 00 44 8b 23 41 c1 e4 14 41 81 cc 00 00 00 60
RSP: 0018:ffff8881f6e09a40 EFLAGS: 00000a03 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: ffff8881d953721c RCX: ffff8881d4d63f00
RDX: 0000000000000101 RSI: ffff8881d9537000 RDI: 0000000000000000
RBP: ffff8881f6e09c30 R08: ffffffff83db0176 R09: ffff8881f6e099c0
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 000000000000f57c R14: ffff8881e396e930 R15: ffff8881e396e8d0
FS:  00007f5189e306c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000001efb92000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3953
 call_timer_fn+0x36/0x390 kernel/time/timer.c:1448
 expire_timers kernel/time/timer.c:1493 [inline]
 __run_timers+0x879/0xbe0 kernel/time/timer.c:1817
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1830
 __do_softirq+0x23b/0x6b7 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x195/0x1c0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:538 [inline]
 smp_apic_timer_interrupt+0x11a/0x460 arch/x86/kernel/apic/apic.c:1149
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:834
 </IRQ>
RIP: 0010:finish_task_switch+0x1ca/0x590 kernel/sched/core.c:3468
Code: 00 f7 03 20 00 00 00 0f 85 fd 00 00 00 49 8d 7f 60 be 04 00 00 00 e8 b5 c5 4e 00 f0 41 ff 4f 60 74 1c 48 81 7d c0 80 00 00 00 <74> 24 4c 89 e0 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d c3 4c 89
RSP: 0018:ffff8881eea07c40 EFLAGS: 00000287 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: ffff8881d4d64900 RCX: 0000000000000002
RDX: 0000000040000002 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffff8881eea07c90 R08: ffffffff81799989 R09: fffffbfff0c96e5b
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f6e57b40
R13: ffff8881d4d63f00 R14: dffffc0000000000 R15: 0000000000000000
 context_switch kernel/sched/core.c:3611 [inline]
 __schedule+0xb0d/0x1320 kernel/sched/core.c:4307
 preempt_schedule_irq+0xc7/0x140 kernel/sched/core.c:4558
 retint_kernel+0x1b/0x1b
RIP: 0010:__sanitizer_cov_trace_pc+0x31/0x50 kernel/kcov.c:192
Code: 0d 54 51 9e 7e 65 8b 15 59 51 9e 7e f7 c2 00 01 1f 00 74 01 c3 8b 91 00 0a 00 00 83 fa 02 75 f4 48 8b 91 08 0a 00 00 48 8b 32 <48> 8d 7e 01 8b 89 04 0a 00 00 48 39 cf 73 db 48 89 44 f2 08 48 89
RSP: 0000:ffff8881eea07ee8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffffffff8100699e RBX: 0000000000000000 RCX: ffff8881d4d63f00
RDX: ffffc9000194a000 RSI: 0000000000006b11 RDI: 0000000000000000
RBP: 0000000000000008 R08: ffffffff8100698a R09: ffffed103a9ac7e1
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff1103a9ac7e0 R14: ffff8881eea07f58 R15: 0000000000000008
 exit_to_usermode_loop+0x3e/0x1a0 arch/x86/entry/common.c:149
 prepare_exit_to_usermode+0x199/0x200 arch/x86/entry/common.c:194
 ret_from_intr+0x1c/0x1c
RIP: 0033:0x7f518aa690af
Code: 00 00 00 64 f0 83 04 25 a8 ff ff ff 01 64 48 8b 04 25 00 00 00 00 48 8d b8 e0 fe ff ff e8 79 02 01 00 85 c0 0f 84 91 01 00 00 <64> f0 83 2c 25 a8 ff ff ff 01 e8 a2 b8 00 00 48 8b 0c 24 8b 00 48
RSP: 002b:00007f5189e300f0 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 00007f518abecf80 RCX: 00007f518ab25074
RDX: 0000000000000000 RSI: 0000000000005452 RDI: 0000000000000003
RBP: 00007f518ab25074 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f518abecf80 R15: 00007ffefcedeb58
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 5584 Comm: syz-executor.1 Tainted: G        W         5.4.274-syzkaller-00002-g6f97bd951d82 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:native_apic_msr_eoi_write+0xb/0x10 arch/x86/include/asm/apic.h:213
Code: 3c 28 00 74 08 48 89 df e8 32 60 65 00 48 8b 03 bf f0 03 00 00 44 89 f6 5b 41 5e 5d ff e0 90 b9 0b 08 00 00 31 c0 31 d2 0f 30 <c3> 0f 1f 40 00 81 ff cf 00 00 00 7f 0c 83 ff 20 74 2d 83 ff 30 74
RSP: 0018:ffff8881f6f095f8 EFLAGS: 00000046
RAX: 0000000000000000 RBX: ffffffff856321d0 RCX: 000000000000080b
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000b0
RBP: 0000000000000000 R08: ffffffff82316ca1 R09: ffffffff86e92058
R10: ffffffff86e92043 R11: 1ffffffff0dd2408 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
FS:  00007f3cc9e396c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3ccaabf07f CR3: 0000000005e0e000 CR4: 00000000003406a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 apic_eoi arch/x86/include/asm/apic.h:400 [inline]
 ack_APIC_irq arch/x86/include/asm/apic.h:446 [inline]
 ipi_entering_ack_irq arch/x86/include/asm/apic.h:532 [inline]
 smp_irq_work_interrupt+0x5a/0x250 arch/x86/kernel/irq_work.c:18
 irq_work_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:865
RIP: 0010:stack_trace_consume_entry+0xdd/0x240 kernel/stacktrace.c:93
Code: fc ff df 0f b6 44 05 00 84 c0 0f 85 0f 01 00 00 48 8b 04 24 44 89 30 b0 01 e9 96 00 00 00 e8 3a 88 10 00 31 c0 e9 8a 00 00 00 <e8> 2e 88 10 00 48 89 d8 48 c1 e8 03 49 be 00 00 00 00 00 fc ff df
RSP: 0018:ffff8881f6f096e8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff09
RAX: ffff8881f42faf40 RBX: ffff8881f6f09820 RCX: 0000000000000101
RDX: ffff8881f6f0982c RSI: 0000000000000000 RDI: 0000000000000000
RBP: 1ffff1103ede1305 R08: ffffffff8153b3af R09: ffff8881f6f09790
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1103ede1305
R13: 0000000000000013 R14: 0000000000000000 R15: 1ffff1103ede1306
 arch_stack_walk+0x105/0x140 arch/x86/kernel/stacktrace.c:27
 stack_trace_save+0x118/0x1c0 kernel/stacktrace.c:123
 save_stack mm/kasan/common.c:70 [inline]
 set_track mm/kasan/common.c:78 [inline]
 kasan_set_free_info mm/kasan/common.c:345 [inline]
 __kasan_slab_free+0x1b5/0x270 mm/kasan/common.c:487
 slab_free_hook mm/slub.c:1455 [inline]
 slab_free_freelist_hook mm/slub.c:1494 [inline]
 slab_free mm/slub.c:3080 [inline]
 kfree+0x123/0x370 mm/slub.c:4071
 skb_release_all net/core/skbuff.c:675 [inline]
 __kfree_skb net/core/skbuff.c:689 [inline]
 consume_skb+0xa5/0x2a0 net/core/skbuff.c:849
 netlink_broadcast_filtered+0x115f/0x1280 net/netlink/af_netlink.c:1531
 netlink_broadcast net/netlink/af_netlink.c:1553 [inline]
 nlmsg_multicast include/net/netlink.h:968 [inline]
 nlmsg_notify+0xf7/0x1b0 net/netlink/af_netlink.c:2524
 br_forward_delay_timer_expired+0x213/0x250 net/bridge/br_stp_timer.c:98
 call_timer_fn+0x36/0x390 kernel/time/timer.c:1448
 expire_timers kernel/time/timer.c:1493 [inline]
 __run_timers+0x879/0xbe0 kernel/time/timer.c:1817
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1830
 __do_softirq+0x23b/0x6b7 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x195/0x1c0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:538 [inline]
 smp_apic_timer_interrupt+0x11a/0x460 arch/x86/kernel/apic/apic.c:1149
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:834
 </IRQ>
RIP: 0010:free_pages_and_swap_cache+0x42/0x90 mm/swap_state.c:296
Code: 31 ff 44 89 f6 e8 be 77 d2 ff 45 85 f6 7e 4e 44 89 f0 4c 8d 3c c5 f8 ff ff ff 31 ed 49 bc 00 00 00 00 00 fc ff df 48 8d 3c 2b <48> 89 f8 48 c1 e8 03 42 80 3c 20 00 74 05 e8 ab 59 02 00 48 8b 3c
RSP: 0018:ffff8881e9f8f848 EFLAGS: 00000212 ORIG_RAX: ffffffffffffff13
RAX: ffffffff8191c798 RBX: ffff8881d26f8010 RCX: ffff8881f42faf40
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881d26f8b30
RBP: 0000000000000b20 R08: ffffffff8191c5ee R09: fffff94000eadf19
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: dffffc0000000000 R14: 00000000000001fe R15: 0000000000000fe8
 tlb_batch_pages_flush mm/mmu_gather.c:49 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:189 [inline]
 tlb_flush_mmu mm/mmu_gather.c:196 [inline]
 tlb_finish_mmu+0x177/0x320 mm/mmu_gather.c:277
 exit_mmap+0x2dc/0x520 mm/mmap.c:3193
 __mmput+0x8e/0x2c0 kernel/fork.c:1101
 exit_mm kernel/exit.c:536 [inline]
 do_exit+0xc08/0x2bc0 kernel/exit.c:846
 do_group_exit+0x138/0x300 kernel/exit.c:982
 get_signal+0xdb1/0x1440 kernel/signal.c:2735
 do_signal+0xb0/0x11f0 arch/x86/kernel/signal.c:809
 exit_to_usermode_loop+0xc0/0x1a0 arch/x86/entry/common.c:159
 prepare_exit_to_usermode+0x199/0x200 arch/x86/entry/common.c:194
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
RIP: 0033:0x7f3ccaabf0a9
Code: Bad RIP value.
RSP: 002b:00007f3cc9e390c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: 0000000000000000 RBX: 00007f3ccabf5f80 RCX: 00007f3ccaabf0a9
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000003
RBP: 00007f3ccab2e074 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f3ccabf5f80 R15: 00007ffc243f1178