watchdog: BUG: soft lockup - CPU#0 stuck for 122s! [syz.1.1914:5920]
Modules linked in:
CPU: 0 PID: 5920 Comm: syz.1.1914 Not tainted 5.4.276-syzkaller-00020-g4275fce9fe94 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:queued_write_lock_slowpath+0x1a1/0x390 kernel/locking/qrwlock.c:79
Code: e8 c4 d2 47 00 eb 20 f3 90 42 0f b6 04 33 84 c0 74 15 44 89 f9 80 e1 07 80 c1 03 38 c1 7c 08 4c 89 ff e8 a2 d2 47 00 41 8b 07 <3d> 00 01 00 00 75 d6 43 0f b6 04 34 84 c0 75 53 c7 44 24 50 00 01
RSP: 0018:ffff8881f6e095c0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 00000000000001ff RBX: 1ffffffff0c7f8a5 RCX: ffffffff814c4b1b
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffffff863fc528
RBP: ffff8881f6e09670 R08: dffffc0000000000 R09: fffffbfff0c7f8a6
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1103edc12c2
R13: 00000000000000ff R14: dffffc0000000000 R15: ffffffff863fc528
FS:  00007f8f04e566c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000240 CR3: 00000001cad21000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 queued_write_lock include/asm-generic/qrwlock.h:95 [inline]
 __raw_write_lock_bh include/linux/rwlock_api_smp.h:204 [inline]
 _raw_write_lock_bh+0x10a/0x170 kernel/locking/spinlock.c:319
 ___neigh_create+0xd22/0x1ae0 net/core/neighbour.c:626
 ip6_finish_output2+0x965/0x18e0 net/ipv6/ip6_output.c:141
 NF_HOOK_COND include/linux/netfilter.h:292 [inline]
 ip6_output+0x1b3/0x430 net/ipv6/ip6_output.c:248
 dst_output include/net/dst.h:438 [inline]
 NF_HOOK include/linux/netfilter.h:303 [inline]
 ndisc_send_skb+0x702/0xc30 net/ipv6/ndisc.c:509
 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3954
 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:539 [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:check_kcov_mode kernel/kcov.c:164 [inline]
RIP: 0010:write_comp_data kernel/kcov.c:208 [inline]
RIP: 0010:__sanitizer_cov_trace_cmp4+0x22/0x70 kernel/kcov.c:248
Code: 49 ff c1 4c 89 09 c3 90 4c 8b 04 24 65 48 8b 05 44 53 9e 7e 65 8b 0d 49 53 9e 7e f7 c1 00 01 1f 00 74 01 c3 8b 88 00 0a 00 00 <83> f9 03 75 f4 48 8b 88 08 0a 00 00 44 8b 90 04 0a 00 00 49 c1 e2
RSP: 0018:ffff8881e8317560 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffff8881f0d84ec0 RBX: ffff8881e83176a0 RCX: 0000000000000002
RDX: ffffc90002550000 RSI: 0000000000000040 RDI: 0000000000000001
RBP: 0000000000000040 R08: ffffffff8153b060 R09: ffff8881e8317610
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1103d062ed5
R13: 0000000000000001 R14: dffffc0000000000 R15: 1ffff1103d062ed6
 stack_trace_consume_entry+0x70/0x240 kernel/stacktrace.c:86
 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_kmalloc+0x171/0x210 mm/kasan/common.c:529
 slab_post_alloc_hook mm/slab.h:584 [inline]
 slab_alloc_node mm/slub.c:2829 [inline]
 slab_alloc mm/slub.c:2837 [inline]
 kmem_cache_alloc+0xd9/0x250 mm/slub.c:2842
 vm_area_dup kernel/fork.c:358 [inline]
 dup_mmap kernel/fork.c:548 [inline]
 dup_mm kernel/fork.c:1379 [inline]
 copy_mm+0x75e/0x10d0 kernel/fork.c:1435
 copy_process+0x1291/0x3230 kernel/fork.c:2052
 _do_fork+0x197/0x900 kernel/fork.c:2399
 __do_sys_clone kernel/fork.c:2557 [inline]
 __se_sys_clone kernel/fork.c:2538 [inline]
 __x64_sys_clone+0x26b/0x2c0 kernel/fork.c:2538
 do_syscall_64+0xca/0x1c0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
RIP: 0033:0x7f8f05bd4b99
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:00007f8f04e55ff8 EFLAGS: 00000206 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007f8f05d62fa0 RCX: 00007f8f05bd4b99
RDX: 0000000020000300 RSI: 0000000000000000 RDI: 0000000004120000
RBP: 00007f8f05c5577e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020000540 R11: 0000000000000206 R12: 0000000000000000
R13: 000000000000000b R14: 00007f8f05d62fa0 R15: 00007ffc1e324d88
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 3331 Comm: syz.0.1114 Not tainted 5.4.276-syzkaller-00020-g4275fce9fe94 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:hrtimer_interrupt+0x689/0x890 kernel/time/hrtimer.c:1719
Code: 0c 24 80 e1 07 38 c1 0f 8c f5 fc ff ff 48 8b 3c 24 e8 9b 0d 3f 00 e9 e7 fc ff ff e8 51 28 0f 00 48 8b 44 24 08 42 0f b6 04 30 <84> c0 0f 85 40 01 00 00 48 8b 04 24 80 20 fb e9 bf 00 00 00 49 8d
RSP: 0018:ffff8881f6f08d00 EFLAGS: 00000006
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff8881ee744ec0
RDX: 0000000000010503 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff8881f6f4b620 R08: ffffffff81550eee R09: ffffffff8157be97
R10: ffff8881ee744ec0 R11: 0000000000000002 R12: ffff8881f6f4b600
R13: 0000000000000002 R14: dffffc0000000000 R15: 0000000000000046
FS:  00007f519d2e96c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f519e067b6f CR3: 00000001c45c6000 CR4: 00000000003406a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1122 [inline]
 smp_apic_timer_interrupt+0x110/0x460 arch/x86/kernel/apic/apic.c:1147
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:834
RIP: 0010:unwind_next_frame+0x1556/0x1ea0 arch/x86/kernel/unwind_orc.c:572
Code: c0 0f 85 08 06 00 00 43 0f b6 04 3c 84 c0 0f 85 20 06 00 00 0f b7 32 c1 ee 04 83 e6 0f 83 fe 04 48 8d 94 24 80 02 00 00 74 7a <83> fe 01 0f 84 da 00 00 00 85 f6 0f 85 21 02 00 00 48 89 df be 20
RSP: 0018:ffff8881f6f08ee0 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: ffff8881f6f091e0 RCX: 0000000000000000
RDX: ffff8881f6f09160 RSI: 0000000000000001 RDI: ffff8881f6f09240
RBP: ffff8881f6f091d0 R08: dffffc0000000000 R09: ffff8881f6f09230
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffffffff0d57ea7
R13: ffffffff86abf538 R14: ffff8881f6f091e0 R15: dffffc0000000000
 arch_stack_walk+0x111/0x140 arch/x86/kernel/stacktrace.c:25
 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_kmalloc+0x171/0x210 mm/kasan/common.c:529
 slab_post_alloc_hook mm/slab.h:584 [inline]
 slab_alloc_node mm/slub.c:2829 [inline]
 slab_alloc mm/slub.c:2837 [inline]
 __kmalloc_track_caller+0x100/0x2b0 mm/slub.c:4449
 __kmalloc_reserve net/core/skbuff.c:142 [inline]
 __alloc_skb+0xb4/0x4d0 net/core/skbuff.c:210
 alloc_skb include/linux/skbuff.h:1080 [inline]
 nlmsg_new include/net/netlink.h:888 [inline]
 __neigh_notify+0x7c/0x130 net/core/neighbour.c:3370
 neigh_cleanup_and_release+0x2b/0x210 net/core/neighbour.c:102
 neigh_del net/core/neighbour.c:198 [inline]
 neigh_remove_one+0x350/0x3b0 net/core/neighbour.c:219
 neigh_forced_gc net/core/neighbour.c:252 [inline]
 neigh_alloc net/core/neighbour.c:430 [inline]
 ___neigh_create+0x3b3/0x1ae0 net/core/neighbour.c:592
 ip6_finish_output2+0x965/0x18e0 net/ipv6/ip6_output.c:141
 NF_HOOK_COND include/linux/netfilter.h:292 [inline]
 ip6_output+0x1b3/0x430 net/ipv6/ip6_output.c:248
 dst_output include/net/dst.h:438 [inline]
 NF_HOOK include/linux/netfilter.h:303 [inline]
 ndisc_send_skb+0x702/0xc30 net/ipv6/ndisc.c:509
 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3954
 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:539 [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:__read_once_size_nocheck+0x3/0x10 include/linux/compiler.h:286
Code: 80 e1 07 38 c1 0f 8c ae fc ff ff 48 89 df e8 f4 37 64 00 48 ba 00 00 00 00 00 fc ff df e9 97 fc ff ff e8 f0 07 0b 00 48 8b 07 <48> 89 06 c3 66 0f 1f 84 00 00 00 00 00 be 17 00 00 00 48 c7 c7 a0
RSP: 0018:ffff8881e025f1d8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffffffff819b2d92 RBX: 1ffff1103c04be64 RCX: 1ffff1103c04be9c
RDX: ffffffff867fedac RSI: ffff8881e025f320 RDI: ffff8881e025f980
RBP: ffff8881e025f4d0 R08: 0000000000000014 R09: ffff8881e025f530
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffffffff0cffdb5
R13: ffff8881e025f320 R14: ffff8881e025f980 R15: dffffc0000000000
 deref_stack_reg arch/x86/kernel/unwind_orc.c:350 [inline]
 unwind_next_frame+0xfab/0x1ea0 arch/x86/kernel/unwind_orc.c:526
 arch_stack_walk+0x111/0x140 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x118/0x1c0 kernel/stacktrace.c:123
 save_stack+0x95/0x880 mm/page_owner.c:122
 __reset_page_owner+0x1f/0x100 mm/page_owner.c:149
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1176 [inline]
 free_pcp_prepare mm/page_alloc.c:1233 [inline]
 free_unref_page_prepare+0x297/0x380 mm/page_alloc.c:3085
 free_unref_page mm/page_alloc.c:3134 [inline]
 free_the_page mm/page_alloc.c:4953 [inline]
 __free_pages+0xaf/0x140 mm/page_alloc.c:4961
 __vunmap+0x75b/0x890 mm/vmalloc.c:2260
 kcov_put kernel/kcov.c:396 [inline]
 kcov_close+0x27/0x50 kernel/kcov.c:495
 __fput+0x262/0x680 fs/file_table.c:281
 task_work_run+0x140/0x170 kernel/task_work.c:113
 exit_task_work include/linux/task_work.h:22 [inline]
 do_exit+0xcaf/0x2bc0 kernel/exit.c:859
 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
 ret_from_intr+0x1c/0x1c
RIP: 0033:0x7f519e067b99
Code: Bad RIP value.
RSP: 002b:00007f519d2e9048 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 00007f519e1f5fa0 RCX: 00007f519e067b99
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000004
RBP: 00007f519e0e877e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f519e1f5fa0 R15: 00007ffff6c9d048