watchdog: BUG: soft lockup - CPU#1 stuck for 143s! [syz.7.1627:8129] Modules linked in: CPU: 1 PID: 8129 Comm: syz.7.1627 Tainted: G W 5.15.167-syzkaller-android13-5.15.167_r00 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:stack_trace_consume_entry+0x0/0x290 kernel/stacktrace.c:83 Code: ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 7b ff ff ff 48 89 df e8 60 31 53 00 e9 6e ff ff ff e8 96 4e 81 03 66 0f 1f 44 00 00 <55> 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec 20 48 89 fb 48 ba RSP: 0018:ffffc900001d06f8 EFLAGS: 00000286 RAX: ffffffff81b1e235 RBX: ffffc900001d0700 RCX: 00000000001d0701 RDX: 1ffff9200003a0e2 RSI: ffffffff81b1e235 RDI: ffffc900001d07e0 RBP: ffffc900001d0790 R08: ffffc900001d07e8 R09: 0000000000000001 R10: ffffc900001d07f0 R11: dffffc0000000001 R12: ffff88810db262c0 R13: ffffffff815f77f0 R14: ffffc900001d07e0 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1e2c517990 CR3: 0000000006a0f000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: 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_slab_alloc+0xb1/0xe0 mm/kasan/common.c:466 kasan_slab_alloc include/linux/kasan.h:217 [inline] slab_post_alloc_hook+0x53/0x2c0 mm/slab.h:550 slab_alloc_node mm/slub.c:3240 [inline] slab_alloc mm/slub.c:3248 [inline] kmem_cache_alloc+0xf5/0x200 mm/slub.c:3253 kmem_cache_alloc_node include/linux/slab.h:474 [inline] __alloc_skb+0xbe/0x550 net/core/skbuff.c:416 alloc_skb include/linux/skbuff.h:1183 [inline] ndisc_alloc_skb+0xf3/0x2d0 net/ipv6/ndisc.c:423 ndisc_send_rs+0x26c/0x6a0 net/ipv6/ndisc.c:689 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3979 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 handle_softirqs+0x25e/0x5c0 kernel/softirq.c:565 __do_softirq kernel/softirq.c:603 [inline] invoke_softirq kernel/softirq.c:425 [inline] __irq_exit_rcu+0x52/0xf0 kernel/softirq.c:652 irq_exit_rcu+0x9/0x10 kernel/softirq.c:664 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:preempt_schedule_irq+0xc2/0x140 kernel/sched/core.c:6916 Code: 4c 89 e7 e8 90 7c cd fc f6 44 24 21 02 74 0b 0f 0b 48 f7 03 08 00 00 00 74 4d bf 01 00 00 00 e8 34 2f 67 fc fb bf 01 00 00 00 e9 e3 ff ff fa bf 01 00 00 00 e8 be 30 67 fc 65 48 8b 1d 76 40 RSP: 0018:ffffc90000ff7840 EFLAGS: 00000246 RAX: 1ffff11021b64dae RBX: 1ffff920001fef0c RCX: ffffffff84e6ff00 RDX: 1ffff11021b64c5d RSI: 0000000000000000 RDI: 0000000000000001 RBP: ffffc90000ff78c8 R08: ffffffff874ce040 R09: ffffffff874ce048 R10: ffffffff874ce058 R11: ffffffff874ce050 R12: ffffc90000ff7860 R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff920001fef08 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:__sanitizer_cov_trace_pc+0x5d/0x60 kernel/kcov.c:216 Code: 0b 00 00 83 fa 02 75 21 48 8b 91 40 0b 00 00 48 8b 32 48 8d 7e 01 8b 89 3c 0b 00 00 48 39 cf 73 08 48 89 44 f2 08 48 89 3a 5d 66 90 55 48 89 e5 4c 8b 45 08 65 48 8b 15 90 15 92 7e 65 8b 05 RSP: 0018:ffffc90000ff79c0 EFLAGS: 00000293 RAX: ffffffff81c928bb RBX: 0000000000000001 RCX: ffff88810db262c0 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 RBP: ffffc90000ff79f0 R08: ffffffff81c928a2 R09: 0000000000000003 R10: fffff520001fef28 R11: dffffc0000000001 R12: ffff88810db26ba8 R13: ffff88810db26ad8 R14: ffff8881067ea980 R15: ffff8881067ea984 do_exit+0xc19/0x2ca0 kernel/exit.c:876 do_group_exit+0x141/0x310 kernel/exit.c:1002 get_signal+0x7a3/0x1630 kernel/signal.c:2904 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 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline] syscall_exit_to_user_mode+0x26/0x160 kernel/entry/common.c:307 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f1e2d8bf719 Code: Unable to access opcode bytes at RIP 0x7f1e2d8bf6ef. RSP: 002b:00007f1e2c517038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: 0000000000000003 RBX: 00007f1e2da77058 RCX: 00007f1e2d8bf719 RDX: 0000000000000080 RSI: 0000000020000180 RDI: 0000000000000005 RBP: 00007f1e2d93232e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f1e2da77058 R15: 00007ffd5ec4dce8 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 8138 Comm: syz.3.1629 Tainted: G W 5.15.167-syzkaller-android13-5.15.167_r00 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:perf_prepare_sample+0x1d3/0x1a80 kernel/events/core.c:7472 Code: e8 03 49 bf 00 00 00 00 00 fc ff df 42 80 3c 38 00 4c 8b 64 24 28 74 08 48 89 df e8 57 28 20 00 4c 89 33 4c 8b 74 24 20 eb 14 c8 d5 dd ff 49 bf 00 00 00 00 00 fc ff df 4c 8b 64 24 28 4c 89 RSP: 0000:ffffc900000072c0 EFLAGS: 00000046 RAX: 0000000000000000 RBX: 1ffff92000000e8c RCX: ffff88810aa5e2c0 RDX: 0000000000010100 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc900000073b0 R08: ffffffff81928163 R09: ffffc90000007400 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90000007460 R13: ffffc900000075c0 R14: 0000000000000000 R15: 0000000000000001 FS: 00007f7bbfb106c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d412ff8 CR3: 000000012b95e000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: __perf_event_output kernel/events/core.c:7648 [inline] perf_event_output_forward+0xdb/0x1b0 kernel/events/core.c:7668 __perf_event_overflow+0x20b/0x390 kernel/events/core.c:9336 perf_swevent_hrtimer+0x3fd/0x560 kernel/events/core.c:10732 __run_hrtimer kernel/time/hrtimer.c:1687 [inline] __hrtimer_run_queues+0x41a/0xad0 kernel/time/hrtimer.c:1751 hrtimer_interrupt+0x40c/0xaa0 kernel/time/hrtimer.c:1813 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1085 [inline] __sysvec_apic_timer_interrupt+0xfd/0x3c0 arch/x86/kernel/apic/apic.c:1102 sysvec_apic_timer_interrupt+0x44/0xc0 arch/x86/kernel/apic/apic.c:1096 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:dev_net include/linux/netdevice.h:2489 [inline] RIP: 0010:ipv6_get_ifaddr+0x17e/0x640 net/ipv6/addrconf.c:2053 Code: 80 3c 20 00 74 08 48 89 df e8 fe 75 5e fd 48 8b 1b 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 e5 75 5e fd 4c 8b 3b <49> 8d 9f f8 04 00 00 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 RSP: 0000:ffffc90000007b00 EFLAGS: 00000246 RAX: 1ffff11027cd2a00 RBX: ffff88813e695000 RCX: ffff88810aa5e2c0 RDX: 0000000000000100 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc90000007bf8 R08: ffffffff84543340 R09: ffffed10250f786e R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff888137552000 R14: ffff888122206000 R15: ffff88810b9e2000 ndisc_send_rs+0x9a/0x6a0 net/ipv6/ndisc.c:674 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3979 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 handle_softirqs+0x25e/0x5c0 kernel/softirq.c:565 __do_softirq kernel/softirq.c:603 [inline] invoke_softirq kernel/softirq.c:425 [inline] __irq_exit_rcu+0x52/0xf0 kernel/softirq.c:652 irq_exit_rcu+0x9/0x10 kernel/softirq.c:664 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:preempt_schedule_irq+0xc2/0x140 kernel/sched/core.c:6916 Code: 4c 89 e7 e8 90 7c cd fc f6 44 24 21 02 74 0b 0f 0b 48 f7 03 08 00 00 00 74 4d bf 01 00 00 00 e8 34 2f 67 fc fb bf 01 00 00 00 e9 e3 ff ff fa bf 01 00 00 00 e8 be 30 67 fc 65 48 8b 1d 76 40 RSP: 0000:ffffc90001397d40 EFLAGS: 00000246 RAX: 1ffff1102154bdae RBX: 1ffff92000272fac RCX: ffffffff84e6ff00 RDX: 1ffffffff0e99c00 RSI: 0000000000000000 RDI: 0000000000000001 RBP: ffffc90001397dd8 R08: ffffffff874ce000 R09: ffffffff874ce008 R10: ffffffff874ce018 R11: ffffffff874ce010 R12: ffffc90001397d60 R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000272fa8 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:exit_to_user_mode_loop+0x46/0xe0 kernel/entry/common.c:168 Code: 30 f2 56 00 e8 3b ae f7 00 fa e8 25 9f 81 03 65 48 8b 05 9d 3d a3 7e 48 8b 18 f7 c3 0e 30 02 00 0f 84 87 00 00 00 fb f6 c3 08 <74> 05 e8 73 f6 85 03 f7 c3 00 10 00 00 74 08 4c 89 f7 e8 f3 db 37 RSP: 0000:ffffc90001397ed0 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000008 RCX: 0000000000010000 RDX: 1ffffffff0e99c00 RSI: 0000000000000008 RDI: ffffc90001397f58 RBP: ffffc90001397ee0 R08: ffffffff874ce000 R09: ffffffff874ce008 R10: ffffffff874ce018 R11: ffffffff874ce010 R12: 0000000000000000 R13: 0000000000000000 R14: ffffc90001397f58 R15: ffff88810aa5e2c0 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: 0033:0x7f7bc0e97719 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:00007f7bbfb100e8 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 00007f7bc104ef88 RCX: 00007f7bc0e97719 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f7bc104ef88 RBP: 00007f7bc104ef80 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f7bc104ef8c R13: 0000000000000000 R14: 00007ffffc222160 R15: 00007ffffc222248