RBP: 00007f0d35ba4074 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f0d35c6bf80 R15: 00007fff93df1b58
watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [syz-executor.4:2003]
Modules linked in:
CPU: 0 PID: 2003 Comm: syz-executor.4 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+0x1f9/0x1ea0 arch/x86/kernel/unwind_orc.c:438
Code: 03 0f 85 3e 16 00 00 4c 89 74 24 40 48 8b 04 24 4c 8d 70 35 4d 89 f7 49 c1 ef 03 48 bb 00 00 00 00 00 fc ff df 41 0f b6 04 1f <84> c0 0f 85 11 18 00 00 4d 0f be 26 48 8b 44 24 30 80 3c 18 00 48
RSP: 0018:ffff8881f6e09400 EFLAGS: 00000a03 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffffffff86e99903
RDX: 0000000000000101 RSI: 0000000000000040 RDI: 0000000000000001
RBP: ffff8881f6e096f0 R08: ffffffff8153b472 R09: ffff8881f6e09750
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1103edc12e0
R13: ffffffff8193a4d0 R14: ffff8881f6e09735 R15: 1ffff1103edc12e6
FS:  00007f0d34eaf6c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0d34c49d00 CR3: 00000001e4bea000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 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
 </IRQ>
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 <e8> b9 e6 ff ff fa bf 01 00 00 00 e8 6e a3 f4 fc 65 48 8b 1d a6 4d
RSP: 0018:ffff8881e2f3fae0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 1ffff1103e63bef7 RBX: 1ffff1103c5e7f60 RCX: ffffffff84511c00
RDX: ffffc90000540000 RSI: 000000000003ffff RDI: 0000000000000001
RBP: ffff8881e2f3fb78 R08: ffffffff82316d59 R09: ffffed103edcb135
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881e2f3fb00
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff1103c5e7f5c
 retint_kernel+0x1b/0x1b
RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:get_signal+0x25/0x1440 kernel/signal.c:2524
Code: 00 00 0f 1f 00 55 41 57 41 56 41 55 41 54 53 48 81 ec 98 00 00 00 48 89 7c 24 48 49 bd 00 00 00 00 00 fc ff df e8 6b b5 25 00 <65> 48 8b 0d c3 06 c4 7e 48 89 4c 24 30 48 8d b9 50 07 00 00 48 89
RSP: 0018:ffff8881e2f3fc30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffffffff813e86b5 RBX: dffffc0000000000 RCX: 0000000000040000
RDX: ffffc90000540000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffff8881e2f3fee0 R08: dffffc0000000000 R09: ffff8881e2f3fe00
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff8881e2f3ff58 R15: ffff8881e2f3fe00
 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: 0033:0x7f0d35b350a9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f0d34eaf0c8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 00007f0d35c6bf80 RCX: 00007f0d35b350a9
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000003
RBP: 00007f0d35ba4074 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f0d35c6bf80 R15: 00007fff93df1b58
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 472 Comm: syz-executor.0 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:ret_from_intr+0x0/0x1c
Code: ff e8 c5 1e 00 00 eb 22 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 84 00 00 00 00 00 48 83 04 24 80 e8 26 ff ff ff e8 81 0c 00 00 <fa> 5c 65 ff 0c 25 88 8d 02 00 f6 84 24 88 00 00 00 03 74 5c 48 89
RSP: 0018:ffff8881f6f09428 EFLAGS: 00000046
RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffff8881ed68af40
RDX: 0000000000000102 RSI: 0000000000000102 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff82316ca1 R09: ffffed103edeb135
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f85412f46c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f192db0b000 CR3: 00000001e045d000 CR4: 00000000003406a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:165 [inline]
RIP: 0010:unwind_next_frame+0x29a/0x1ea0 arch/x86/kernel/unwind_orc.c:438
Code: 44 39 f8 0f 86 eb 16 00 00 44 89 f8 48 8d 1c 85 1c 3c b6 86 48 89 d8 48 c1 e8 03 49 bd 00 00 00 00 00 fc ff df 42 0f b6 04 28 <84> c0 0f 85 53 18 00 00 44 8b 33 44 89 f8 ff c0 48 8d 1c 85 1c 3c
RSP: 0018:ffff8881f6f094e0 EFLAGS: 00000a03 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: ffffffff86b72b24 RCX: ffffffff86e99903
RDX: 0000000000038021 RSI: 0000000000000040 RDI: 0000000000000001
RBP: ffff8881f6f097d0 R08: ffffffff8153b472 R09: ffff8881f6f09830
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff813bc297
R13: dffffc0000000000 R14: ffff8881f6f09815 R15: 0000000000003bc2
 </IRQ>