watchdog: BUG: soft lockup - CPU#1 stuck for 144s! [syz.3.18:400] Modules linked in: CPU: 1 PID: 400 Comm: syz.3.18 Not tainted 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:update_stack_state+0x31d/0x460 Code: 00 4c 89 e8 48 c1 e8 03 42 80 3c 38 00 74 08 4c 89 ef e8 b6 a0 7d 00 41 f6 45 00 03 4c 8b 75 b8 74 66 45 31 f6 e9 af 00 00 00 <48> 8b 45 d0 4c 8d 70 38 4c 89 f0 48 c1 e8 03 49 bf 00 00 00 00 00 RSP: 0018:ffffc900001cfcf0 EFLAGS: 00000246 RAX: ffffc900001cffb0 RBX: ffffc900001cfe68 RCX: ffffc900001cffc0 RDX: 1ffff92000039fca RSI: ffffc900001cffb0 RDI: ffffc900001cfe98 RBP: ffffc900001cfda8 R08: ffffc900001cff28 R09: 0000000000000000 R10: ffffc900001cff30 R11: dffffc0000000001 R12: 1ffff92000039fd0 R13: 0000000000000000 R14: ffffc900001cfe80 R15: 0000000000000002 FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000025016c64 CR3: 0000000006a0f000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: unwind_next_frame+0x3cb/0x700 arch/x86/kernel/unwind_frame.c:305 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+0x4b/0x70 mm/kasan/common.c:45 kasan_set_free_info+0x23/0x40 mm/kasan/generic.c:370 ____kasan_slab_free+0x126/0x160 mm/kasan/common.c:365 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:373 kasan_slab_free include/linux/kasan.h:193 [inline] slab_free_hook mm/slub.c:1723 [inline] slab_free_freelist_hook+0xbd/0x190 mm/slub.c:1749 slab_free mm/slub.c:3519 [inline] kmem_cache_free+0x116/0x2e0 mm/slub.c:3535 kfree_skbmem+0x104/0x170 __kfree_skb net/core/skbuff.c:758 [inline] consume_skb+0xb4/0x250 net/core/skbuff.c:930 netlink_broadcast_filtered+0x10f4/0x1220 net/netlink/af_netlink.c:1540 netlink_broadcast net/netlink/af_netlink.c:1562 [inline] nlmsg_multicast include/net/netlink.h:1033 [inline] nlmsg_notify+0x101/0x1c0 net/netlink/af_netlink.c:2550 rtnl_notify+0x9c/0xd0 net/core/rtnetlink.c:730 __neigh_notify+0xcc/0x120 net/core/neighbour.c:3386 neigh_cleanup_and_release+0x2c/0x1b0 net/core/neighbour.c:101 neigh_del net/core/neighbour.c:197 [inline] neigh_remove_one+0x3a6/0x430 net/core/neighbour.c:218 neigh_forced_gc net/core/neighbour.c:251 [inline] neigh_alloc net/core/neighbour.c:429 [inline] ___neigh_create+0x474/0x1bd0 net/core/neighbour.c:591 __neigh_create+0x32/0x40 net/core/neighbour.c:679 ip6_finish_output2+0x9ee/0x16f0 net/ipv6/ip6_output.c:127 __ip6_finish_output+0x60f/0x7c0 net/ipv6/ip6_output.c:201 ip6_finish_output+0x31/0x210 net/ipv6/ip6_output.c:211 NF_HOOK_COND include/linux/netfilter.h:294 [inline] ip6_output+0x1f7/0x4c0 net/ipv6/ip6_output.c:234 dst_output include/net/dst.h:444 [inline] NF_HOOK include/linux/netfilter.h:305 [inline] ndisc_send_skb+0x73e/0xc90 net/ipv6/ndisc.c:511 ndisc_send_rs+0x532/0x6a0 net/ipv6/ndisc.c:705 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:ffffc90006d57580 EFLAGS: 00000246 RAX: 1ffff11022467dae RBX: 1ffff92000daaeb4 RCX: ffffffff84e6ff00 RDX: 1ffff11022467c5d RSI: 0000000000000000 RDI: 0000000000000001 RBP: ffffc90006d57608 R08: ffffffff874ce040 R09: ffffffff874ce048 R10: ffffffff874ce058 R11: ffffffff874ce050 R12: ffffc90006d575a0 R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000daaeb0 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:free_unref_page+0x5c0/0x750 mm/page_alloc.c:3614 Code: fb ff ff 48 8d bc 24 80 00 00 00 e8 3a 73 05 00 48 b9 00 00 00 00 00 fc ff df e9 f1 fa ff ff 48 8d 8c 24 90 00 00 00 80 e1 07 <38> c1 0f 8c 03 fb ff ff 48 8d bc 24 90 00 00 00 48 89 f3 e8 08 73 RSP: 0018:ffffc90006d57700 EFLAGS: 00000246 RAX: 0000000000000001 RBX: 00000000049ae7c0 RCX: ffffc90006d57700 RDX: 1ffff92000daaee8 RSI: 0000000000126b9f RDI: ffffea00049ae7c0 RBP: ffffc90006d577f8 R08: dffffc0000000000 R09: fffff94000935cff R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000daaef0 R13: ffffea00049ae7c0 R14: 0000000000000000 R15: 1ffff92000daaef2 free_the_page mm/page_alloc.c:805 [inline] __free_pages+0x61/0xf0 mm/page_alloc.c:5855 __vunmap+0x7bc/0x8f0 mm/vmalloc.c:2652 __vfree mm/vmalloc.c:2700 [inline] vfree+0x7f/0xb0 mm/vmalloc.c:2731 kcov_put kernel/kcov.c:417 [inline] kcov_close+0x2b/0x50 kernel/kcov.c:519 __fput+0x228/0x8c0 fs/file_table.c:280 ____fput+0x15/0x20 fs/file_table.c:308 task_work_run+0x129/0x190 kernel/task_work.c:188 exit_task_work include/linux/task_work.h:33 [inline] do_exit+0xc48/0x2ca0 kernel/exit.c:880 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 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: 0033:0x7ff1b05c0719 Code: Unable to access opcode bytes at RIP 0x7ff1b05c06ef. RSP: 002b:00007ff1af239038 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 00007ff1b0777f80 RCX: 00007ff1b05c0719 RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000006 RBP: 00007ff1b063339e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007ff1b0777f80 R15: 00007ffd4b8456a8 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 1552 Comm: syz.0.219 Not tainted 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:kasan_check_range+0x0/0x2a0 mm/kasan/generic.c:188 Code: 48 c1 ee 03 48 01 c6 48 89 c7 e8 fb a4 2e 03 31 c0 5d c3 0f 0b eb 02 0f 0b b8 ea ff ff ff 5d c3 cc cc cc cc cc cc cc cc cc cc <55> 48 89 e5 41 57 41 56 41 55 41 54 53 b0 01 48 85 f6 0f 84 a4 01 RSP: 0018:ffffc90000007268 EFLAGS: 00000006 RAX: 0000000000000000 RBX: ffff88812616dea0 RCX: ffffffff817e38f5 RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff88812616dea8 RBP: ffffc90000007270 R08: dffffc0000000000 R09: ffffed1024c2dbd6 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000023 R13: ffff88812616dea8 R14: 1ffff11024c2dbd5 R15: 0000000000000022 FS: 00007fd65755b6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2ed1aff8 CR3: 0000000125b41000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: instrument_atomic_write include/linux/instrumented.h:86 [inline] atomic_set include/linux/atomic/atomic-instrumented.h:41 [inline] irq_work_single kernel/irq_work.c:147 [inline] irq_work_run_list+0x185/0x290 kernel/irq_work.c:177 irq_work_run+0x69/0xf0 kernel/irq_work.c:186 __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:664 RIP: 0010:queued_write_lock_slowpath+0x159/0x440 kernel/locking/qrwlock.c:78 Code: 41 81 0f 00 01 00 00 48 8b 5c 24 08 43 0f b6 04 2e 84 c0 0f 85 94 00 00 00 41 8b 07 3d 00 01 00 00 74 27 f3 90 43 0f b6 04 2e <84> c0 74 eb 44 89 f9 80 e1 07 80 c1 03 38 c1 7c de 4c 89 ff e8 3e RSP: 0018:ffffc90000007460 EFLAGS: 00000206 RAX: 0000000000000000 RBX: 1ffff92000000e96 RCX: ffffffff815534be RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffffff871969c8 RBP: ffffc90000007510 R08: dffffc0000000000 R09: fffffbfff0e32d3a R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc900000074b0 R13: dffffc0000000000 R14: 1ffffffff0e32d39 R15: ffffffff871969c8 queued_write_lock include/asm-generic/qrwlock.h:97 [inline] __raw_write_lock_bh include/linux/rwlock_api_smp.h:204 [inline] _raw_write_lock_bh+0x10a/0x170 kernel/locking/spinlock.c:324 ___neigh_create+0xd0d/0x1bd0 net/core/neighbour.c:625 __neigh_create+0x32/0x40 net/core/neighbour.c:679 ip6_finish_output2+0x9ee/0x16f0 net/ipv6/ip6_output.c:127 __ip6_finish_output+0x60f/0x7c0 net/ipv6/ip6_output.c:201 ip6_finish_output+0x31/0x210 net/ipv6/ip6_output.c:211 NF_HOOK_COND include/linux/netfilter.h:294 [inline] ip6_output+0x1f7/0x4c0 net/ipv6/ip6_output.c:234 dst_output include/net/dst.h:444 [inline] NF_HOOK include/linux/netfilter.h:305 [inline] ndisc_send_skb+0x73e/0xc90 net/ipv6/ndisc.c:511 ndisc_send_rs+0x532/0x6a0 net/ipv6/ndisc.c:705 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:ffffc90000fd7d20 EFLAGS: 00000246 RAX: 1ffff110250c7646 RBX: 1ffff920001fafa8 RCX: ffffffff84e6ff00 RDX: 1ffffffff0e99c00 RSI: 0000000000000000 RDI: 0000000000000001 RBP: ffffc90000fd7da8 R08: ffffffff874ce000 R09: ffffffff874ce008 R10: ffffffff874ce018 R11: ffffffff874ce010 R12: ffffc90000fd7d40 R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff920001fafa4 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:fdput include/linux/file.h:45 [inline] RIP: 0010:__do_sys_ioctl fs/ioctl.c:877 [inline] RIP: 0010:__se_sys_ioctl+0x150/0x190 fs/ioctl.c:860 Code: 89 de e8 a3 94 b0 ff 4c 39 e3 bb e7 ff ff ff 41 0f 45 df eb 15 e8 50 90 b0 ff 4c 8b 75 d0 eb 0a e8 45 90 b0 ff bb e7 ff ff ff <44> 89 f6 83 e6 01 31 ff e8 73 94 b0 ff 41 f6 c6 01 75 07 e8 28 90 RSP: 0018:ffffc90000fd7ea8 EFLAGS: 00000283 RAX: ffffffff81bfc730 RBX: 0000000000000000 RCX: 0000000000040000 RDX: ffffc9000815d000 RSI: 0000000000000022 RDI: 0000000000000023 RBP: ffffc90000fd7ee0 R08: ffffffff81bfc697 R09: ffffed102124cf63 R10: 0000000000000000 R11: dffffc0000000001 R12: 00000000200006c0 R13: ffff888111473500 R14: ffff888111473501 R15: 0000000000005452 __x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:860 x64_sys_call+0x98/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:17 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: 0033:0x7fd6588e2719 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:00007fd65755b038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fd658a99f80 RCX: 00007fd6588e2719 RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000009 RBP: 00007fd65895539e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fd658a99f80 R15: 00007fff2012c498