RBP: 00007f80d16d7046 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f80d181df80 R15: 00007fff31a894d8 watchdog: BUG: soft lockup - CPU#1 stuck for 226s! [syz.0.291:2301] Modules linked in: CPU: 1 PID: 2301 Comm: syz.0.291 Not tainted 5.15.157-syzkaller-00897-g53be7c8abe11 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 RIP: 0010:last_frame arch/x86/kernel/unwind_frame.c:82 [inline] RIP: 0010:is_last_frame arch/x86/kernel/unwind_frame.c:87 [inline] RIP: 0010:is_last_task_frame arch/x86/kernel/unwind_frame.c:156 [inline] RIP: 0010:unwind_next_frame+0xe5/0x700 arch/x86/kernel/unwind_frame.c:266 Code: 00 48 ba 00 00 00 00 00 fc ff df 48 89 5d b8 49 8b 46 38 48 89 45 d0 49 8d 5e 28 48 89 d8 48 c1 e8 03 48 89 45 90 80 3c 10 00 <74> 12 48 89 df e8 31 c0 7d 00 48 ba 00 00 00 00 00 fc ff df 48 89 RSP: 0018:ffffc900001d04b8 EFLAGS: 00000246 RAX: 1ffff9200003a0ad RBX: ffffc900001d0568 RCX: 00000000001d0501 RDX: dffffc0000000000 RSI: ffffffff84dfa975 RDI: ffffc900001d0540 RBP: ffffc900001d0530 R08: ffffc900001d0628 R09: 0000000000000015 R10: ffffc900001d0630 R11: dffffc0000000001 R12: 0000000000000000 R13: ffffffff815f87f0 R14: ffffc900001d0540 R15: 1ffff9200003a0a8 FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000558730a990d0 CR3: 00000001211de000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: 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:38 [inline] kasan_set_track mm/kasan/common.c:45 [inline] set_alloc_info mm/kasan/common.c:433 [inline] ____kasan_kmalloc+0xdb/0x110 mm/kasan/common.c:512 __kasan_kmalloc+0x9/0x10 mm/kasan/common.c:521 kasan_kmalloc include/linux/kasan.h:227 [inline] kmem_cache_alloc_trace+0x115/0x210 mm/slub.c:3267 kmalloc include/linux/slab.h:603 [inline] dst_cow_metrics_generic+0x55/0x1c0 net/core/dst.c:199 dst_metrics_write_ptr include/net/dst.h:118 [inline] dst_metric_set include/net/dst.h:179 [inline] icmp6_dst_alloc+0x385/0x560 net/ipv6/route.c:3285 ndisc_send_skb+0x27f/0xc90 net/ipv6/ndisc.c:489 ndisc_send_rs+0x532/0x6a0 net/ipv6/ndisc.c:703 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3978 call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1457 expire_timers kernel/time/timer.c:1502 [inline] __run_timers+0x72a/0xa10 kernel/time/timer.c:1773 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1786 __do_softirq+0x26d/0x5bf kernel/softirq.c:565 invoke_softirq kernel/softirq.c:425 [inline] __irq_exit_rcu+0x50/0xf0 kernel/softirq.c:648 irq_exit_rcu+0x9/0x10 kernel/softirq.c:660 sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1096 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:finish_task_switch+0x16f/0x7b0 kernel/sched/core.c:5024 Code: 74 08 4c 89 ff e8 b1 88 65 00 49 8b 1f 48 85 db 4c 8b 6d c0 0f 85 ce 00 00 00 4c 89 e7 e8 99 aa 98 03 fb 49 8d 9d 38 0b 00 00 <48> 89 d8 48 c1 e8 03 49 be 00 00 00 00 00 fc ff df 42 0f b6 04 30 RSP: 0018:ffffc90000c37380 EFLAGS: 00000282 RAX: 0000000080000001 RBX: ffff88811075da38 RCX: 0000000000000002 RDX: 0000000040000000 RSI: 0000000000000000 RDI: 0000000000000001 RBP: ffffc90000c373d0 R08: ffffffff81921469 R09: fffffbfff0e52e2b R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f71378c0 R13: ffff88811075cf00 R14: 1ffff1103ee27081 R15: ffff8881f7138408 context_switch kernel/sched/core.c:5155 [inline] __schedule+0xcd4/0x1590 kernel/sched/core.c:6512 preempt_schedule_irq+0xc7/0x140 kernel/sched/core.c:6916 irqentry_exit_cond_resched+0x2a/0x30 kernel/entry/common.c:398 irqentry_exit+0x30/0x40 kernel/entry/common.c:432 sysvec_apic_timer_interrupt+0x55/0xc0 arch/x86/kernel/apic/apic.c:1096 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:check_kcov_mode kernel/kcov.c:174 [inline] RIP: 0010:write_comp_data kernel/kcov.c:218 [inline] RIP: 0010:__sanitizer_cov_trace_const_cmp1+0x34/0x90 kernel/kcov.c:270 Code: 8b 15 e0 fd 91 7e 65 8b 05 e1 fd 91 7e a9 00 01 ff 00 74 10 a9 00 01 00 00 74 5b 83 ba 5c 0b 00 00 00 74 52 8b 82 38 0b 00 00 <83> f8 03 75 47 48 8b 8a 40 0b 00 00 44 8b 92 3c 0b 00 00 49 c1 e2 RSP: 0018:ffffc90000c37670 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff819bf919 RDX: ffff88811075cf00 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90000c37670 R08: ffffffff819bf93c R09: fffff94000952d6f R10: 0000000000000000 R11: dffffc0000000001 R12: 00000000000000e9 R13: ffffea0004a96b40 R14: 0000000000000000 R15: ffffea0004a96b00 release_pages+0x2ac/0x1370 mm/swap.c:977 free_pages_and_swap_cache+0x8a/0xa0 mm/swap_state.c:320 tlb_batch_pages_flush mm/mmu_gather.c:49 [inline] tlb_flush_mmu_free mm/mmu_gather.c:240 [inline] tlb_flush_mmu mm/mmu_gather.c:247 [inline] tlb_finish_mmu+0x177/0x320 mm/mmu_gather.c:338 exit_mmap+0x40d/0x940 mm/mmap.c:3218 __mmput+0x95/0x310 kernel/fork.c:1179 mmput+0x5b/0x170 kernel/fork.c:1202 exit_mm kernel/exit.c:552 [inline] do_exit+0xb9c/0x2ca0 kernel/exit.c:865 do_group_exit+0x141/0x310 kernel/exit.c:1000 get_signal+0x7a3/0x1630 kernel/signal.c:2896 arch_do_signal_or_restart+0xbd/0x1680 arch/x86/kernel/signal.c:867 handle_signal_work kernel/entry/common.c:154 [inline] exit_to_user_mode_loop+0xa0/0xe0 kernel/entry/common.c:178 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:214 irqentry_exit_to_user_mode+0x9/0x10 kernel/entry/common.c:320 irqentry_exit+0x12/0x40 kernel/entry/common.c:411 sysvec_apic_timer_interrupt+0x55/0xc0 arch/x86/kernel/apic/apic.c:1096 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0033:0x7f80d1664ef9 Code: Unable to access opcode bytes at RIP 0x7f80d1664ecf. RSP: 002b:00007f80d02df038 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 00007f80d181df80 RCX: 00007f80d1664ef9 RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000004 RBP: 00007f80d16d7046 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f80d181df80 R15: 00007fff31a894d8 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 2380 Comm: syz.0.292 Not tainted 5.15.157-syzkaller-00897-g53be7c8abe11 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 RIP: 0010:native_apic_msr_eoi_write+0xf/0x20 arch/x86/include/asm/apic.h:214 Code: bf f0 03 00 00 44 89 f6 ff 13 5b 41 5e 41 5f 5d c3 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 b9 0b 08 00 00 31 c0 31 d2 0f 30 <5d> c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 48 89 e5 81 RSP: 0018:ffffc90000007b48 EFLAGS: 00000046 RAX: 0000000000000000 RBX: ffffffff8625c9c8 RCX: 000000000000080b RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000b0 RBP: ffffc90000007b48 R08: ffffffff874cc000 R09: ffffffff874cc008 R10: ffffffff874cc018 R11: ffffffff874cc010 R12: 0000000000000000 R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000 FS: 00007f7b72f006c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7b74440a8c CR3: 0000000122a30000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: apic_eoi arch/x86/include/asm/apic.h:400 [inline] ack_APIC_irq arch/x86/include/asm/apic.h:446 [inline] __sysvec_irq_work+0x55/0x1b0 arch/x86/kernel/irq_work.c:19 sysvec_irq_work+0x41/0xb0 arch/x86/kernel/irq_work.c:17 asm_sysvec_irq_work+0x1b/0x20 arch/x86/include/asm/idtentry.h:664 RIP: 0010:br_multicast_is_star_g net/bridge/br_private.h:1094 [inline] RIP: 0010:br_multicast_del_pg+0x4e6/0xb50 net/bridge/br_multicast.c:692 Code: 4c 8b 6d b8 74 08 48 89 df e8 16 c7 3f fd 48 89 5d c0 48 8b 3b 4c 89 ee 48 8b 55 d0 b9 55 00 00 00 e8 7e 29 02 00 4d 8d 65 38 <4d> 89 e7 49 c1 ef 03 43 0f b6 04 37 84 c0 0f 85 a1 05 00 00 4d 8d RSP: 0018:ffffc90000007c48 EFLAGS: 00000246 RAX: 51e4a3139f029f00 RBX: ffff888113298a10 RCX: ffff88811f528000 RDX: 0000000000000102 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90000007cb0 R08: ffffffff840de4a5 R09: ffffc90000007900 R10: fffff52000000f04 R11: dffffc0000000001 R12: ffff8881375d1438 R13: ffff8881375d1400 R14: dffffc0000000000 R15: ffff888132144ab0 br_multicast_find_del_pg net/bridge/br_multicast.c:723 [inline] br_multicast_port_group_expired+0x716/0x870 net/bridge/br_multicast.c:753 call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1457 expire_timers kernel/time/timer.c:1502 [inline] __run_timers+0x72a/0xa10 kernel/time/timer.c:1773 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1786 __do_softirq+0x26d/0x5bf kernel/softirq.c:565 invoke_softirq kernel/softirq.c:425 [inline] __irq_exit_rcu+0x50/0xf0 kernel/softirq.c:648 irq_exit_rcu+0x9/0x10 kernel/softirq.c:660 sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1096 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:__schedule+0x0/0x1590 kernel/sched/core.c:6390 Code: 4c 89 25 73 04 1f 02 eb 05 e8 8c 6c 8c fc 48 c7 c7 c0 94 57 87 e8 d0 df 01 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 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 c0 00 RSP: 0018:ffffc900011ef2f8 EFLAGS: 00000246 RAX: 1ffff11023ea5156 RBX: ffff88811f528000 RCX: ffffffff84e5ee00 RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000001 RBP: ffffc900011ef398 R08: dffffc0000000000 R09: ffffed1023ea5001 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc900011ef320 R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff9200023de60 irqentry_exit_cond_resched+0x2a/0x30 kernel/entry/common.c:398 irqentry_exit+0x30/0x40 kernel/entry/common.c:432 sysvec_apic_timer_interrupt+0x55/0xc0 arch/x86/kernel/apic/apic.c:1096 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:preempt_schedule_common+0x1/0xf0 kernel/sched/core.c:6671 Code: 65 48 8b 04 25 28 00 00 00 48 3b 44 24 48 75 14 48 8d 65 e0 5b 41 5c 41 5e 41 5f 5d c3 e8 07 00 00 00 eb cc e8 30 9d fb ff 55 <48> 89 e5 41 57 41 56 53 49 bf 00 00 00 00 00 fc ff df eb 0d 48 f7 RSP: 0018:ffffc900011ef490 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 1ffff9200023de94 RCX: 0000000000000001 RDX: ffffc90002de5000 RSI: 0000000000000246 RDI: 0000000000000001 RBP: ffffc900011ef538 R08: ffffffff81735ac0 R09: fffffbfff0e52d36 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff9200023de98 R13: 0000000000000000 R14: ffffc900011ef4c0 R15: dffffc0000000000 preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:34 try_to_wake_up+0x6ee/0x1160 kernel/sched/core.c:4259 wake_up_process kernel/sched/core.c:4322 [inline] wake_up_q+0xf0/0x1d0 kernel/sched/core.c:972 futex_wake+0x821/0xc80 kernel/futex/core.c:1706 do_futex+0x1310/0x37f0 kernel/futex/core.c:4000 __do_sys_futex kernel/futex/core.c:4072 [inline] __se_sys_futex+0x37b/0x3e0 kernel/futex/core.c:4053 __x64_sys_futex+0xe5/0x100 kernel/futex/core.c:4053 x64_sys_call+0x561/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:203 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f7b74285ef9 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:00007f7b72f000e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 00007f7b7443ef88 RCX: 00007f7b74285ef9 RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f7b7443ef8c RBP: 00007f7b7443ef80 R08: 00007ffe17d3a0b0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f7b7443ef8c R13: 0000000000000000 R14: 00007ffe17d2c080 R15: 00007ffe17d2c168