watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [syz.1.155:766] Modules linked in: CPU: 0 PID: 766 Comm: syz.1.155 Not tainted 5.4.274-syzkaller-00002-g6f97bd951d82 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 RIP: 0010:unwind_next_frame+0xed/0x1ea0 arch/x86/kernel/unwind_orc.c:414 Code: 89 84 24 98 00 00 00 42 80 3c 38 00 74 05 e8 8a 62 64 00 48 c7 84 24 80 02 00 00 00 00 00 00 4d 8d 66 48 4c 89 e0 48 c1 e8 03 <48> 89 44 24 30 42 80 3c 38 00 74 08 4c 89 e7 e8 df 61 64 00 4c 89 RSP: 0000:ffff8881f6e09300 EFLAGS: 00000a02 ORIG_RAX: ffffffffffffff13 RAX: 1ffff1103edc12e9 RBX: 1ffff1103edc1274 RCX: 0000000000000002 RDX: dffffc0000000000 RSI: 0000000000000004 RDI: ffff8881f6e09580 RBP: ffff8881f6e095f0 R08: ffffffff82316ca1 R09: ffff8881f6e09700 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f6e09748 R13: ffff8881f6e09700 R14: ffff8881f6e09700 R15: dffffc0000000000 FS: 00007faad64be6c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b32216ff8 CR3: 00000001dcf60000 CR4: 00000000003406b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: __unwind_start+0x708/0x890 arch/x86/kernel/unwind_orc.c:691 unwind_start arch/x86/include/asm/unwind.h:60 [inline] arch_stack_walk+0xdd/0x140 arch/x86/kernel/stacktrace.c:24 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 kmem_cache_alloc_node include/linux/slab.h:427 [inline] __alloc_skb+0x7a/0x4d0 net/core/skbuff.c:198 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 75 12 43 fd 48 83 3d cd 2c 9a 01 00 74 29 48 89 df e8 e3 e7 fa fc 66 90 fb bf 01 00 00 00 66 d4 f3 fc 65 8b 05 ab 7e b1 7b 85 c0 74 02 5b c3 e8 34 45 af RSP: 0000:ffff8881e2007db0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000001 RBX: ffff8881f6e57b40 RCX: dffffc0000000000 RDX: 0000000000000001 RSI: 0000000000000008 RDI: 0000000000000001 RBP: ffff8881e2007eb0 R08: dffffc0000000000 R09: ffffed103d7c2001 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff8881ebe10000 R14: ffff8881ebe10000 R15: ffff8881ebe10078 rq_unlock_irq kernel/sched/sched.h:1270 [inline] __schedule+0xcff/0x1320 kernel/sched/core.c:4310 schedule+0x12c/0x1d0 kernel/sched/core.c:4375 exit_to_usermode_loop+0x43/0x1a0 arch/x86/entry/common.c:149 prepare_exit_to_usermode+0x199/0x200 arch/x86/entry/common.c:194 ret_from_intr+0x1c/0x1c RIP: 0033:0x7faad723cd39 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:00007faad64be048 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 00007faad73cafa0 RCX: 00007faad723cd39 RDX: 00000000200016c0 RSI: 0000000000005452 RDI: 0000000000000004 RBP: 00007faad72bd766 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007faad73cafa0 R15: 00007fff51d41988 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 759 Comm: syz.3.151 Not tainted 5.4.274-syzkaller-00002-g6f97bd951d82 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 RIP: 0010:arch_static_branch arch/x86/include/asm/msr.h:105 [inline] RIP: 0010:static_key_false include/linux/jump_label.h:200 [inline] RIP: 0010:native_write_msr arch/x86/include/asm/msr.h:164 [inline] RIP: 0010:wrmsr arch/x86/include/asm/msr.h:275 [inline] RIP: 0010:native_apic_msr_write+0x35/0x50 arch/x86/include/asm/apic.h:207 Code: 74 2d 83 ff 30 74 28 eb 10 81 ff d0 00 00 00 74 1e 81 ff e0 00 00 00 74 16 c1 ef 04 81 c7 00 08 00 00 89 f9 89 f0 31 d2 0f 30 <0f> 1f 44 00 00 c3 89 f6 31 d2 e9 ac 30 1a 01 66 66 2e 0f 1f 84 00 RSP: 0018:ffff8881f6f09498 EFLAGS: 00000046 RAX: 0000000000000133 RBX: ffffffff856321e0 RCX: 0000000000000838 RDX: 0000000000000000 RSI: 0000000000000133 RDI: 0000000000000838 RBP: 0000000000000133 R08: ffffffff8157c22b R09: ffffffff8157c1b7 R10: ffff8881ecf92f40 R11: 0000000000000002 R12: dffffc0000000000 R13: 0000000000000002 R14: 0000000000000133 R15: dffffc0000000000 FS: 00007f4f8e5dc6c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555563fe4a8 CR3: 00000001da7ec000 CR4: 00000000003406a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: apic_write arch/x86/include/asm/apic.h:395 [inline] lapic_next_event+0x5b/0x70 arch/x86/kernel/apic/apic.c:466 clockevents_program_event+0x199/0x2c0 kernel/time/clockevents.c:334 hrtimer_interrupt+0x4b3/0x890 kernel/time/hrtimer.c:1718 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:is_kfence_address include/linux/kfence.h:58 [inline] RIP: 0010:__kasan_kmalloc+0x51/0x210 mm/kasan/common.c:512 Code: 25 28 00 00 00 48 89 84 24 20 02 00 00 f7 c1 00 04 00 00 74 05 e8 bf 26 00 00 4d 85 e4 0f 84 94 01 00 00 48 8b 05 67 2c cf 03 <4c> 89 e1 48 29 c1 48 81 f9 ff ff 07 00 77 09 48 85 c0 0f 85 75 01 RSP: 0018:ffff8881f6f096d0 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: ffff88823fe1a000 RBX: 0000000000000a20 RCX: 0000000000000a20 RDX: 00000000000000f0 RSI: ffff8881f26e4b40 RDI: ffff8881ee572a00 RBP: ffff8881f6f09930 R08: ffffffff8194387a R09: ffff8881f26e4b40 R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff8881f26e4b40 R13: 00000000000000f0 R14: ffff8881ee572a00 R15: 0000000000000a20 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 dst_alloc+0x154/0x4c0 net/core/dst.c:93 ip6_dst_alloc net/ipv6/route.c:357 [inline] icmp6_dst_alloc+0xf1/0x550 net/ipv6/route.c:3183 ndisc_send_skb+0x262/0xc30 net/ipv6/ndisc.c:489 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:preempt_schedule_irq+0xc2/0x140 kernel/sched/core.c:4558 Code: 4c 89 e7 e8 90 e1 43 fd f6 44 24 21 02 74 0b 0f 0b 48 f7 03 08 00 00 00 74 4d bf 01 00 00 00 e8 04 a2 f4 fc fb bf 01 00 00 00 b9 e6 ff ff fa bf 01 00 00 00 e8 6e a3 f4 fc 65 48 8b 1d a6 4d RSP: 0018:ffff8881d9eb7ae0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 1ffff1103d9f2717 RBX: 1ffff1103b3d6f60 RCX: ffffffff84511c00 RDX: ffffc90001146000 RSI: 000000000003ffff RDI: 0000000000000001 RBP: ffff8881d9eb7b78 R08: ffffffff82316d59 R09: ffffed103edeb135 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881d9eb7b00 R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff1103b3d6f5c retint_kernel+0x1b/0x1b RIP: 0010:__read_once_size include/linux/compiler.h:268 [inline] RIP: 0010:arch_atomic_read arch/x86/include/asm/atomic.h:31 [inline] RIP: 0010:atomic_read include/asm-generic/atomic-instrumented.h:27 [inline] RIP: 0010:freezing include/linux/freezer.h:37 [inline] RIP: 0010:try_to_freeze_unsafe include/linux/freezer.h:58 [inline] RIP: 0010:try_to_freeze include/linux/freezer.h:67 [inline] RIP: 0010:get_signal+0xdd/0x1440 kernel/signal.c:2539 Code: e8 d8 b4 25 00 e8 93 b6 3f 00 84 c0 0f 85 06 13 00 00 48 c7 c3 c0 e5 eb 86 48 c7 c7 c0 e5 eb 86 be 04 00 00 00 e8 23 6d 55 00 <48> c1 eb 03 42 0f b6 04 2b 84 c0 0f 85 fe 12 00 00 8b 1d 3c 5e ad RSP: 0018:ffff8881d9eb7c30 EFLAGS: 00000297 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000001 RBX: ffffffff86ebe5c0 RCX: ffffffff813e876d RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff86ebe5c0 RBP: ffff8881ecf92f40 R08: dffffc0000000000 R09: 0000000000000003 R10: ffffffffffffffff R11: dffffc0000000001 R12: dffffc0000000000 R13: dffffc0000000000 R14: ffff8881e155e140 R15: ffff8881d9eb7e00 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: 0033:0x7f4f8f35ad39 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:00007f4f8e5dc048 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 00007f4f8f4e8fa0 RCX: 00007f4f8f35ad39 RDX: 0000000020000780 RSI: 0000000000005452 RDI: 0000000000000007 RBP: 00007f4f8f3db766 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f4f8f4e8fa0 R15: 00007fffd29928a8