IPVS: dh: UDP 224.0.0.2:0 - no destination available ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5848 at net/ipv4/route.c:1254 ip_rt_bug+0x2c/0x110 net/ipv4/route.c:1254 Modules linked in: CPU: 0 UID: 0 PID: 5848 Comm: syz-executor Not tainted 6.12.0-rc7-syzkaller-01715-ge867ed3ac8aa #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 RIP: 0010:ip_rt_bug+0x2c/0x110 net/ipv4/route.c:1254 Code: 1e fa 41 57 41 56 41 55 41 54 53 48 89 d3 e8 ab 62 72 f7 66 90 e8 a4 62 72 f7 31 ff 48 89 de ba 02 00 00 00 e8 f5 45 6a ff 90 <0f> 0b 90 31 c0 5b 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc f3 0f 1e RSP: 0018:ffffc90000007680 EFLAGS: 00010286 RAX: 68f0688f334cb400 RBX: ffff88802ef75dc0 RCX: ffffffff8170cfaa RDX: dffffc0000000000 RSI: ffffffff8c0acac0 RDI: ffffffff8c610de0 RBP: 0000000000000001 R08: ffffffff942e589f R09: ffffffff8a22877b R10: dffffc0000000000 R11: fffffbfff285cb14 R12: dffffc0000000000 R13: ffffc900000078f8 R14: ffff8880619a0000 R15: ffff8880226b1b00 FS: 000055556857f500(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f61644656c0 CR3: 0000000064a96000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ip_local_out net/ipv4/ip_output.c:130 [inline] ip_send_skb net/ipv4/ip_output.c:1505 [inline] ip_push_pending_frames+0xbf/0x150 net/ipv4/ip_output.c:1525 __icmp_send+0x1013/0x15c0 net/ipv4/icmp.c:779 ipv4_send_dest_unreach net/ipv4/route.c:1234 [inline] ipv4_link_failure+0x62f/0xa10 net/ipv4/route.c:1241 dst_link_failure include/net/dst.h:429 [inline] arp_error_report+0x114/0x160 net/ipv4/arp.c:296 neigh_invalidate+0x247/0x470 net/core/neighbour.c:1010 neigh_timer_handler+0x8a5/0xfe0 net/core/neighbour.c:1097 call_timer_fn+0x18e/0x650 kernel/time/timer.c:1794 expire_timers kernel/time/timer.c:1845 [inline] __run_timers kernel/time/timer.c:2419 [inline] __run_timer_base+0x66a/0x8e0 kernel/time/timer.c:2430 run_timer_base kernel/time/timer.c:2439 [inline] run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2449 handle_softirqs+0x2c5/0x980 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:lock_acquire+0x264/0x550 kernel/locking/lockdep.c:5829 Code: 2b 00 74 08 4c 89 f7 e8 2a 6b 8e 00 f6 44 24 61 02 0f 85 85 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25 RSP: 0018:ffffc900041f7180 EFLAGS: 00000206 RAX: 0000000000000001 RBX: 1ffff9200083ee3c RCX: 68f0688f334cb400 RDX: dffffc0000000000 RSI: ffffffff8c0adc40 RDI: ffffffff8c610de0 RBP: ffffc900041f72d0 R08: ffffffff942e58a7 R09: 1ffffffff285cb14 R10: dffffc0000000000 R11: fffffbfff285cb15 R12: 1ffff9200083ee38 R13: dffffc0000000000 R14: ffffc900041f71e0 R15: 0000000000000246 _raw_spin_lock_nested+0x31/0x40 kernel/locking/spinlock.c:378 copy_pte_range mm/memory.c:1119 [inline] copy_pmd_range+0x72a/0x85f0 mm/memory.c:1255 copy_pud_range mm/memory.c:1292 [inline] copy_p4d_range mm/memory.c:1316 [inline] copy_page_range+0x99f/0xe90 mm/memory.c:1414 dup_mmap kernel/fork.c:746 [inline] dup_mm kernel/fork.c:1675 [inline] copy_mm+0x1117/0x1e80 kernel/fork.c:1724 copy_process+0x1845/0x3d50 kernel/fork.c:2374 kernel_clone+0x226/0x8f0 kernel/fork.c:2786 __do_sys_clone kernel/fork.c:2929 [inline] __se_sys_clone kernel/fork.c:2913 [inline] __x64_sys_clone+0x258/0x2a0 kernel/fork.c:2913 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f6163774fd3 Code: 1f 84 00 00 00 00 00 64 48 8b 04 25 10 00 00 00 45 31 c0 31 d2 31 f6 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 89 c2 85 c0 75 2c 64 48 8b 04 25 10 00 00 RSP: 002b:00007ffe8b052368 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f6163774fd3 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000001 R10: 000055556857f7d0 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000001f623 R14: 000000000001f52c R15: 00007ffe8b0524f0 ---------------- Code disassembly (best guess): 0: 2b 00 sub (%rax),%eax 2: 74 08 je 0xc 4: 4c 89 f7 mov %r14,%rdi 7: e8 2a 6b 8e 00 call 0x8e6b36 c: f6 44 24 61 02 testb $0x2,0x61(%rsp) 11: 0f 85 85 01 00 00 jne 0x19c 17: 41 f7 c7 00 02 00 00 test $0x200,%r15d 1e: 74 01 je 0x21 20: fb sti 21: 48 c7 44 24 40 0e 36 movq $0x45e0360e,0x40(%rsp) 28: e0 45 * 2a: 4b c7 44 25 00 00 00 movq $0x0,0x0(%r13,%r12,1) <-- trapping instruction 31: 00 00 33: 43 c7 44 25 09 00 00 movl $0x0,0x9(%r13,%r12,1) 3a: 00 00 3c: 43 rex.XB 3d: c7 .byte 0xc7 3e: 44 rex.R 3f: 25 .byte 0x25