watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [syz-executor.1:4606]
Modules linked in:
CPU: 1 PID: 4606 Comm: syz-executor.1 Not tainted 6.1.78-syzkaller-00009-g25216be1ac5e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:skb_set_kcov_handle include/linux/skbuff.h:5059 [inline]
RIP: 0010:__build_skb_around+0x25f/0x3d0 net/core/skbuff.c:296
Code: 03 01 00 00 00 e8 c1 96 73 fd 48 89 c3 49 81 c5 c0 00 00 00 4c 89 e8 48 c1 e8 03 42 80 3c 38 00 74 08 4c 89 ef e8 21 86 ba fd <49> 89 5d 00 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d c3 89 f9 80
RSP: 0000:ffffc900022d7a70 EFLAGS: 00000246
RAX: 1ffff1102225b4b8 RBX: 0000000000000000 RCX: ffffffff8401eba0
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff88812e9322a0
RBP: ffffc900022d7aa8 R08: dffffc0000000000 R09: ffffed1025d26455
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1102225b4bb
R13: ffff8881112da5c0 R14: ffff88812e932000 R15: dffffc0000000000
FS:  00007f346de546c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f654db83978 CR3: 0000000114a3f000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 __alloc_skb+0x19e/0x2d0 net/core/skbuff.c:530
 alloc_skb include/linux/skbuff.h:1283 [inline]
 ndisc_alloc_skb+0xf3/0x2d0 net/ipv6/ndisc.c:422
 ndisc_send_rs+0x264/0x5f0 net/ipv6/ndisc.c:703
 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3968
 call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1480
 expire_timers kernel/time/timer.c:1525 [inline]
 __run_timers+0x72a/0xa10 kernel/time/timer.c:1796
 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1809
 __do_softirq+0x1d8/0x661 kernel/softirq.c:617
 invoke_softirq kernel/softirq.c:472 [inline]
 __irq_exit_rcu+0x50/0xf0 kernel/softirq.c:700
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:712
 sysvec_apic_timer_interrupt+0x49/0xc0 arch/x86/kernel/apic/apic.c:1106
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0033:0x7f346d07cea9
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:00007f346de540c8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 00007f346d1b4120 RCX: 00007f346d07cea9
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 000000000000000d
RBP: 00007f346d0ebff4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f346d1b4120 R15: 00007ffcc13f95a8
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 347 Comm: syz-fuzzer Not tainted 6.1.78-syzkaller-00009-g25216be1ac5e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:pick_next_task_fair+0x818/0xc80 kernel/sched/fair.c:7948
Code: e9 86 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 97 fe ff ff 48 89 df e8 65 b1 6a 00 e9 8a fe ff ff 4c 89 ff 48 8b 74 24 10 <e8> f3 10 00 00 48 8b 44 24 18 42 80 3c 28 00 74 0a 48 8d 7c 24 60
RSP: 0018:ffffc900094ef840 EFLAGS: 00000046
RAX: 1ffff11021f5dcc7 RBX: ffff88810faee540 RCX: 876283d0c2c04d00
RDX: 1ffff9200129def4 RSI: ffff88810faee5c0 RDI: ffff8881f7037280
RBP: ffffc900094ef950 R08: 0000000000000001 R09: ffff8881f7037338
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888121ec3d40
R13: dffffc0000000000 R14: ffff8881f7037280 R15: ffff8881f7037280
FS:  000000c00005b890(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555564f0430 CR3: 0000000120a7a000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 __pick_next_task kernel/sched/core.c:6053 [inline]
 pick_next_task kernel/sched/core.c:6562 [inline]
 __schedule+0x467/0x1550 kernel/sched/core.c:6707
 schedule+0xc3/0x180 kernel/sched/core.c:6820
 futex_wait_queue+0xf2/0x250 kernel/futex/waitwake.c:361
 futex_wait+0x212/0x7e0 kernel/futex/waitwake.c:664
 do_futex+0x55a/0x9a0 kernel/futex/syscalls.c:108
 __do_sys_futex kernel/futex/syscalls.c:185 [inline]
 __se_sys_futex+0x35e/0x3c0 kernel/futex/syscalls.c:166
 __x64_sys_futex+0xe5/0x100 kernel/futex/syscalls.c:166
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x473523
Code: 24 20 c3 cc cc cc cc 48 8b 7c 24 08 8b 74 24 10 8b 54 24 14 4c 8b 54 24 18 4c 8b 44 24 20 44 8b 4c 24 28 b8 ca 00 00 00 0f 05 <89> 44 24 30 c3 cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc
RSP: 002b:000000c0005b7d70 EFLAGS: 00000286 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000473523
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000c00005b948
RBP: 000000c0005b7db8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000043
R13: 000000c00047278c R14: 000000c00019a4e0 R15: 0000000000000000
 </TASK>