watchdog: BUG: soft lockup - CPU#1 stuck for 126s! [syz-executor.2:405] Modules linked in: CPU: 1 PID: 405 Comm: syz-executor.2 Not tainted 5.4.274-syzkaller-00016-gdd432c37afcd #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 RIP: 0010:consume_skb+0x1/0x2a0 net/core/skbuff.c:844 Code: 03 38 c1 7c 91 4c 89 ff e8 ac e1 1b fe eb 87 89 d9 80 e1 07 38 c1 7c 96 48 89 df e8 79 e1 1b fe eb 8c 0f 1f 80 00 00 00 00 55 <41> 57 41 56 41 54 53 49 89 fe e8 a0 fc eb fd 4d 85 f6 0f 84 9c 00 RSP: 0018:ffff8881f6f09958 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13 RAX: ffffffff8397d602 RBX: 0000000000000000 RCX: ffff8881f31c4ec0 RDX: 0000000000000101 RSI: 0000000000000000 RDI: ffff8881ee179b40 RBP: ffff8881d74af000 R08: ffffffff8397c715 R09: ffffed103d2a43a8 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f8220c4a6c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6c33cf0580 CR3: 00000001df70b000 CR4: 00000000003406a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: 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_mdb_notify+0x8f8/0xc60 net/bridge/br_mdb.c:434 br_mdb_notify+0x203/0x360 net/bridge/br_mdb.c:457 br_multicast_del_pg+0x25f/0x3c0 net/bridge/br_multicast.c:186 br_multicast_port_group_expired+0x14c/0x170 net/bridge/br_multicast.c:210 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 RIP: 0010:zap_pmd_range mm/memory.c:1195 [inline] RIP: 0010:zap_pud_range mm/memory.c:1251 [inline] RIP: 0010:zap_p4d_range mm/memory.c:1272 [inline] RIP: 0010:unmap_page_range+0x576/0x2620 mm/memory.c:1293 Code: 89 b4 24 88 00 00 00 4c 8b 74 24 50 4c 89 f0 48 c1 e8 03 48 89 84 24 c0 00 00 00 42 80 3c 20 00 74 08 4c 89 f7 e8 da 5e 09 00 <4d> 8b 2e 4c 89 ee 48 83 e6 9f 41 0f 95 c4 31 ff e8 35 7d d9 ff 4c RSP: 0018:ffff8881ef10f5a0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 1ffff1103de82d97 RBX: 0400000000000080 RCX: 0000001b32e20000 RDX: ffff8881f31c4ec0 RSI: 0000001b3321ffff RDI: 0000001b32ffffff RBP: ffff8881ef10f790 R08: ffffffff818ac1fd R09: ffffed103c0deee4 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: 0000001b3321ffff R14: ffff8881ef416cb8 R15: 0000001b32ffffff unmap_single_vma mm/memory.c:1338 [inline] unmap_vmas+0x355/0x4b0 mm/memory.c:1370 exit_mmap+0x2bc/0x520 mm/mmap.c:3191 __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: 0033:0x7f82218cfee9 Code: Bad RIP value. RSP: 002b:00007f8220c4a0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: 0000000000000000 RBX: 00007f8221a06f80 RCX: 00007f82218cfee9 RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000006 RBP: 00007f822192d6fe R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f8221a06f80 R15: 00007ffe99e30258 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 419 Comm: syz-executor.1 Not tainted 5.4.274-syzkaller-00016-gdd432c37afcd #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 RIP: 0010:native_apic_msr_write+0x0/0x50 arch/x86/include/asm/apic.h:203 Code: 48 89 df e8 12 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 28 eb 10 81 ff RSP: 0018:ffff8881f6e08d58 EFLAGS: 00000046 RAX: ffffffff812ec120 RBX: ffffffff85632228 RCX: ffff8881f32fcec0 RDX: 0000000000010104 RSI: 00000000000000f6 RDI: 00000000000003f0 RBP: 0000000000000000 R08: ffffffff822c4141 R09: ffffed103edca9b7 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: 1ffff1103dd8b160 R14: dffffc0000000000 R15: dffffc0000000001 FS: 00007f6c25f516c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6c26bd6ebf CR3: 0000000005e0e000 CR4: 00000000003406b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: arch_irq_work_raise+0x82/0xd0 arch/x86/kernel/irq_work.c:31 irq_work_queue+0xfe/0x140 kernel/irq_work.c:83 __perf_event_overflow+0x282/0x360 kernel/events/core.c:8305 perf_swevent_hrtimer+0x3fd/0x560 kernel/events/core.c:9688 __run_hrtimer kernel/time/hrtimer.c:1581 [inline] __hrtimer_run_queues+0x3e9/0xb90 kernel/time/hrtimer.c:1643 hrtimer_interrupt+0x38a/0x890 kernel/time/hrtimer.c:1705 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:__orc_find arch/x86/kernel/unwind_orc.c:47 [inline] RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:175 [inline] RIP: 0010:unwind_next_frame+0x5df/0x1ea0 arch/x86/kernel/unwind_orc.c:438 Code: 00 48 8b 84 24 80 01 00 00 e9 8e 08 00 00 a9 00 04 00 00 0f 84 1e 12 00 00 e9 41 12 00 00 49 89 d6 49 89 d5 4c 89 f8 4c 29 e8 <48> 89 c1 48 c1 f9 02 48 c1 e8 3f 48 01 c8 48 83 e0 fe 49 8d 5c 45 RSP: 0018:ffff8881f6e09400 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000004 RBX: ffffffff864e7540 RCX: ffffffff864e7544 RDX: ffffffff864e7528 RSI: ffffffff8677fc8c RDI: 0000000000000001 RBP: ffff8881f6e096f0 R08: 0000000000000009 R09: ffff8881f6e09750 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff810068f8 R13: ffffffff864e7544 R14: ffffffff864e7540 R15: ffffffff864e7548 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] ndisc_alloc_skb+0xee/0x2c0 net/ipv6/ndisc.c:421 ndisc_send_rs+0x269/0x6a0 net/ipv6/ndisc.c:687 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 RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline] RIP: 0010:_raw_spin_unlock_irq+0x45/0x60 kernel/locking/spinlock.c:199 Code: 08 00 74 0c 48 c7 c7 90 3b eb 85 e8 a5 12 43 fd 48 83 3d 1d 2d 9a 01 00 74 29 48 89 df e8 33 e8 fa fc 66 90 fb bf 01 00 00 00 b6 d4 f3 fc 65 8b 05 fb 7e b1 7b 85 c0 74 02 5b c3 e8 84 45 af RSP: 0018:ffff8881eeb37610 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000001 RBX: ffff8881f6e57b40 RCX: dffffc0000000000 RDX: 0000000040000000 RSI: 0000000000000000 RDI: 0000000000000001 RBP: ffff8881eeb37670 R08: ffffffff81799989 R09: fffffbfff0c96e5b R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f6e57b40 R13: ffff8881f32fcec0 R14: dffffc0000000000 R15: 0000000000000000 finish_lock_switch kernel/sched/core.c:3347 [inline] finish_task_switch+0x130/0x590 kernel/sched/core.c:3447 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:exit_mmap+0x130/0x520 mm/mmap.c:3171 Code: 85 99 03 00 00 e8 70 17 d7 ff 49 8d 9f d0 00 00 00 48 89 d8 48 c1 e8 03 42 80 3c 30 00 74 08 48 89 df e8 43 fc 06 00 48 8b 1b <31> ff 48 89 de e8 a6 1a d7 ff 48 85 db 0f 84 d8 00 00 00 4c 89 f8 RSP: 0018:ffff8881eeb378c0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 1ffff1103c0ded72 RBX: 0000000000000000 RCX: ffff8881f32fcec0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff8881eeb379f8 R08: ffffffff818d24a2 R09: ffffed103c0dedc9 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881e06f6e40 R13: 00000000000007fd R14: dffffc0000000000 R15: ffff8881e06f6ac0 __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: 0033:0x7f6c26bd6ee9 Code: Bad RIP value. RSP: 002b:00007f6c25f510c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: 0000000000000000 RBX: 00007f6c26d0df80 RCX: 00007f6c26bd6ee9 RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000003 RBP: 00007f6c26c346fe R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f6c26d0df80 R15: 00007ffd8819de68