watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [syz.2.2596:12650]
Modules linked in:
CPU: 1 PID: 12650 Comm: syz.2.2596 Not tainted 6.1.93-syzkaller-00100-g27310ed6b677 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:update_stack_state+0x19d/0x460 arch/x86/kernel/unwind_frame.c:228
Code: 4c 89 e7 e8 75 fa 84 00 4d 8b 24 24 48 8b 85 50 ff ff ff 42 80 3c 30 00 74 0c 48 8b bd 70 ff ff ff e8 57 fa 84 00 4d 8b 6f 10 <48> 8b 45 b0 42 0f b6 04 30 84 c0 75 7a 45 8b 3f 45 85 ff 48 8b 45
RSP: 0018:ffffc900001afd90 EFLAGS: 00000246
RAX: 1ffff92000035fde RBX: ffffc900001aff08 RCX: ffffc900001b0fe8
RDX: 1ffff92000035fde RSI: ffffc900001b0fd8 RDI: ffffc900001aff38
RBP: ffffc900001afe48 R08: ffffc900001affc8 R09: 0000000000000019
R10: ffffc900001affd0 R11: dffffc0000000001 R12: ffffc900001a9000
R13: ffffc900001b1000 R14: dffffc0000000000 R15: ffffc900001afee0
FS:  0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000013b06d000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 unwind_next_frame+0x3cb/0x700 arch/x86/kernel/unwind_frame.c:315
 arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
 kasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:516
 ____kasan_slab_free+0x131/0x180 mm/kasan/common.c:241
 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:249
 kasan_slab_free include/linux/kasan.h:178 [inline]
 slab_free_hook mm/slub.c:1745 [inline]
 slab_free_freelist_hook mm/slub.c:1771 [inline]
 slab_free mm/slub.c:3684 [inline]
 kmem_cache_free+0x291/0x510 mm/slub.c:3706
 kfree_skbmem+0x104/0x170
 __kfree_skb net/core/skbuff.c:871 [inline]
 consume_skb+0xb4/0x250 net/core/skbuff.c:1035
 netlink_broadcast+0x103c/0x1160 net/netlink/af_netlink.c:1524
 nlmsg_multicast include/net/netlink.h:1071 [inline]
 nlmsg_notify+0xfb/0x1c0 net/netlink/af_netlink.c:2561
 rtnl_notify+0x9c/0xd0 net/core/rtnetlink.c:767
 __neigh_notify+0xcc/0x130 net/core/neighbour.c:3515
 neigh_cleanup_and_release+0x2c/0x1b0 net/core/neighbour.c:101
 neigh_del net/core/neighbour.c:225 [inline]
 neigh_remove_one+0x4d5/0x560 net/core/neighbour.c:246
 neigh_forced_gc net/core/neighbour.c:279 [inline]
 neigh_alloc net/core/neighbour.c:485 [inline]
 ___neigh_create+0x447/0x1db0 net/core/neighbour.c:648
 __neigh_create+0x32/0x40 net/core/neighbour.c:737
 ip6_finish_output2+0x9d0/0x1840 net/ipv6/ip6_output.c:125
 __ip6_finish_output net/ipv6/ip6_output.c:201 [inline]
 ip6_finish_output+0x50f/0xa60 net/ipv6/ip6_output.c:212
 NF_HOOK_COND include/linux/netfilter.h:294 [inline]
 ip6_output+0x1f7/0x4c0 net/ipv6/ip6_output.c:233
 dst_output include/net/dst.h:444 [inline]
 NF_HOOK include/linux/netfilter.h:305 [inline]
 ndisc_send_skb+0x7cf/0xdc0 net/ipv6/ndisc.c:509
 ndisc_send_rs+0x47d/0x5f0 net/ipv6/ndisc.c:719
 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3984
 call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1510
 expire_timers kernel/time/timer.c:1555 [inline]
 __run_timers+0x72a/0xa10 kernel/time/timer.c:1826
 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1839
 handle_softirqs+0x1db/0x650 kernel/softirq.c:617
 __do_softirq kernel/softirq.c:655 [inline]
 invoke_softirq kernel/softirq.c:472 [inline]
 __irq_exit_rcu+0x52/0xf0 kernel/softirq.c:704
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:716
 sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1106
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:jhash2 include/linux/jhash.h:129 [inline]
RIP: 0010:hash_stack lib/stackdepot.c:276 [inline]
RIP: 0010:__stack_depot_save+0x97/0x480 lib/stackdepot.c:444
Code: 89 fa 03 02 03 72 04 44 03 62 08 44 89 e7 c1 c7 04 44 29 e0 31 c7 41 01 f4 29 fe 89 fb c1 c3 06 31 f3 44 01 e7 89 d9 c1 c1 08 <41> 29 dc 44 31 e1 01 fb 29 cf 89 c8 c1 c0 10 31 f8 01 d9 89 c6 c1
RSP: 0018:ffffc9000150f320 EFLAGS: 00000a03
RAX: 0000000053aedeaf RBX: 000000000fc482a9 RCX: 00000000c482a90f
RDX: ffffc9000150f3ec RSI: 0000000069cd6487 RDI: 000000005ba1234a
RBP: ffffc9000150f380 R08: 000000000000001d R09: 0000000000000000
R10: 0000000000000010 R11: dffffc0000000001 R12: 00000000a208fbb2
R13: 0000000000000001 R14: 0000000000002800 R15: ffffc9000150f3e0
 stack_depot_save+0x13/0x20 lib/stackdepot.c:533
 save_stack+0x104/0x1e0 mm/page_owner.c:148
 __reset_page_owner+0x54/0x190 mm/page_owner.c:168
 reset_page_owner include/linux/page_owner.h:26 [inline]
 free_pages_prepare mm/page_alloc.c:1498 [inline]
 free_pcp_prepare mm/page_alloc.c:1572 [inline]
 free_unref_page_prepare+0x83d/0x850 mm/page_alloc.c:3498
 free_unref_page+0xb2/0x5c0 mm/page_alloc.c:3594
 free_the_page mm/page_alloc.c:798 [inline]
 __free_pages+0x61/0xf0 mm/page_alloc.c:5803
 __vunmap+0x9f3/0xb60 mm/vmalloc.c:2728
 __vfree mm/vmalloc.c:2776 [inline]
 vfree+0x5c/0x80 mm/vmalloc.c:2807
 kcov_put kernel/kcov.c:428 [inline]
 kcov_close+0x2b/0x50 kernel/kcov.c:524
 __fput+0x3ab/0x870 fs/file_table.c:320
 ____fput+0x15/0x20 fs/file_table.c:348
 task_work_run+0x24d/0x2e0 kernel/task_work.c:179
 exit_task_work include/linux/task_work.h:38 [inline]
 do_exit+0xbd5/0x2b80 kernel/exit.c:875
 do_group_exit+0x21a/0x2d0 kernel/exit.c:1025
 get_signal+0x169d/0x1820 kernel/signal.c:2880
 arch_do_signal_or_restart+0xb0/0x16f0 arch/x86/kernel/signal.c:871
 exit_to_user_mode_loop+0x74/0xa0 kernel/entry/common.c:174
 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x26/0x130 kernel/entry/common.c:303
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:87
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7eff05f7cef9
Code: Unable to access opcode bytes at 0x7eff05f7cecf.
RSP: 002b:00007eff06e04038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: 0000000000000000 RBX: 00007eff06135f80 RCX: 00007eff05f7cef9
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000005
RBP: 00007eff05fef046 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007eff06135f80 R15: 00007fff6cbf0088
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 13405 Comm: syz.1.2703 Not tainted 6.1.93-syzkaller-00100-g27310ed6b677 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:84 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:102 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:128 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:159 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]
RIP: 0010:kasan_check_range+0x7b/0x2a0 mm/kasan/generic.c:189
Code: 49 c1 ea 03 49 bb 01 00 00 00 00 fc ff df 4f 8d 34 1a 4d 89 f5 4d 29 cd 49 83 fd 10 7f 26 4d 85 ed 0f 84 44 01 00 00 49 f7 d2 <4d> 01 e2 41 80 39 00 0f 85 d2 01 00 00 49 ff c1 49 ff c2 75 ee e9
RSP: 0000:ffffc90000007278 EFLAGS: 00000002
RAX: 0000000000000001 RBX: 000000000001ffff RCX: ffffffff818419f6
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff8881235668c8
RBP: ffffc900000072a0 R08: dffffc0000000000 R09: ffffed10246acd19
R10: e0000eefdb9532e6 R11: dffffc0000000001 R12: 1ffff110246acd19
R13: 0000000000000001 R14: ffffed10246acd1a R15: 0000000000000022
FS:  00007fc5923916c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31f1cffc CR3: 000000013812e000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 __kasan_check_write+0x14/0x20 mm/kasan/shadow.c:37
 instrument_atomic_write include/linux/instrumented.h:87 [inline]
 atomic_set include/linux/atomic/atomic-instrumented.h:41 [inline]
 irq_work_single kernel/irq_work.c:204 [inline]
 irq_work_run_list+0x196/0x2f0 kernel/irq_work.c:243
 irq_work_run+0x69/0xf0 kernel/irq_work.c:252
 __sysvec_irq_work+0x63/0x1b0 arch/x86/kernel/irq_work.c:22
 sysvec_irq_work+0x41/0xb0 arch/x86/kernel/irq_work.c:17
 asm_sysvec_irq_work+0x1b/0x20 arch/x86/include/asm/idtentry.h:679
RIP: 0010:queued_write_lock_slowpath+0x15c/0x547 kernel/locking/qrwlock.c:85
Code: 00 00 bb ff 00 00 00 43 0f b6 44 3d 00 84 c0 74 38 44 89 f1 80 e1 07 80 c1 03 38 c1 7c 2b 4c 89 f7 e8 d8 cc 9c fc eb 21 f3 90 <43> 0f b6 44 3d 00 84 c0 74 15 44 89 f1 80 e1 07 80 c1 03 38 c1 7c
RSP: 0000:ffffc900000074a0 EFLAGS: 00000206
RAX: 00000000000001ff RBX: 00000000000000ff RCX: ffffffff8520052c
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffffff877ffc70
RBP: ffffc90000007550 R08: dffffc0000000000 R09: fffffbfff0efff8f
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000000e9e
R13: 1ffffffff0efff8e R14: ffffffff877ffc70 R15: dffffc0000000000
 queued_write_lock include/asm-generic/qrwlock.h:101 [inline]
 __raw_write_lock_bh include/linux/rwlock_api_smp.h:203 [inline]
 _raw_write_lock_bh+0x10a/0x170 kernel/locking/spinlock.c:334
 neigh_forced_gc net/core/neighbour.c:264 [inline]
 neigh_alloc net/core/neighbour.c:485 [inline]
 ___neigh_create+0x1f6/0x1db0 net/core/neighbour.c:648
 __neigh_create+0x32/0x40 net/core/neighbour.c:737
 ip6_finish_output2+0x9d0/0x1840 net/ipv6/ip6_output.c:125
 __ip6_finish_output net/ipv6/ip6_output.c:201 [inline]
 ip6_finish_output+0x50f/0xa60 net/ipv6/ip6_output.c:212
 NF_HOOK_COND include/linux/netfilter.h:294 [inline]
 ip6_output+0x1f7/0x4c0 net/ipv6/ip6_output.c:233
 dst_output include/net/dst.h:444 [inline]
 NF_HOOK include/linux/netfilter.h:305 [inline]
 ndisc_send_skb+0x7cf/0xdc0 net/ipv6/ndisc.c:509
 ndisc_send_rs+0x47d/0x5f0 net/ipv6/ndisc.c:719
 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3984
 call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1510
 expire_timers kernel/time/timer.c:1555 [inline]
 __run_timers+0x72a/0xa10 kernel/time/timer.c:1826
 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1839
 handle_softirqs+0x1db/0x650 kernel/softirq.c:617
 __do_softirq kernel/softirq.c:655 [inline]
 invoke_softirq kernel/softirq.c:472 [inline]
 __irq_exit_rcu+0x52/0xf0 kernel/softirq.c:704
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:716
 sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1106
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:__schedule+0x0/0x1560 kernel/sched/core.c:6627
Code: 89 25 d4 f2 4a 02 eb 05 e8 1d b7 57 fc 48 c7 c7 e0 34 c1 87 e8 f1 e4 01 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc cc <55> 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48 81 ec e0 00
RSP: 0000:ffffc90000dc7d38 EFLAGS: 00000246
RAX: 1ffff11023c2b8f1 RBX: 1ffff920001b8fac RCX: ffffffff85200900
RDX: 1ffffffff0f6d400 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffffc90000dc7dd8 R08: ffffffff87b6a000 R09: ffffffff87b6a008
R10: ffffffff87b6a018 R11: ffffffff87b6a010 R12: ffffc90000dc7d60
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff920001b8fa8
 raw_irqentry_exit_cond_resched+0x2a/0x30 kernel/entry/common.c:396
 irqentry_exit+0x30/0x40 kernel/entry/common.c:439
 sysvec_irq_work+0x52/0xb0 arch/x86/kernel/irq_work.c:17
 asm_sysvec_irq_work+0x1b/0x20 arch/x86/include/asm/idtentry.h:679
RIP: 0010:exit_to_user_mode_loop+0x47/0xa0 kernel/entry/common.c:164
Code: 0c 00 00 e8 db 37 5d 00 e8 b6 8e 02 01 fa e8 90 c8 b5 03 65 48 8b 05 e8 bc 9e 7e 48 8b 18 f7 c3 0e 30 02 00 74 53 fb f6 c3 08 <74> 05 e8 c2 52 ba 03 f7 c3 00 10 00 00 74 08 4c 89 f7 e8 b2 f4 3c
RSP: 0000:ffffc90000dc7ed0 EFLAGS: 00000202
RAX: 0000000000000000 RBX: 0000000000000008 RCX: 0000000000010000
RDX: 1ffffffff0f6d400 RSI: 0000000000000008 RDI: ffffc90000dc7f58
RBP: ffffc90000dc7ee0 R08: ffffffff87b6a000 R09: ffffffff87b6a008
R10: ffffffff87b6a018 R11: ffffffff87b6a010 R12: 0000000000000000
R13: 0000000000000000 R14: ffffc90000dc7f58 R15: ffff88811e15bcc0
 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:210
 irqentry_exit_to_user_mode+0x9/0x10 kernel/entry/common.c:316
 irqentry_exit+0x12/0x40 kernel/entry/common.c:419
 sysvec_apic_timer_interrupt+0x55/0xc0 arch/x86/kernel/apic/apic.c:1106
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0033:0x7fc59157cef9
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:00007fc592391038 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 00007fc591735f80 RCX: 00007fc59157cef9
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000005
RBP: 00007fc5915ef046 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fc591735f80 R15: 00007ffccdb7d198
 </TASK>