------------[ cut here ]------------ WARNING: CPU: 1 PID: 5241 at net/ipv4/route.c:1241 ip_rt_bug+0x2c/0x110 net/ipv4/route.c:1241 Modules linked in: CPU: 1 UID: 0 PID: 5241 Comm: udevd Not tainted 6.11.0-rc4-syzkaller-00135-gaa0743a22936 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 RIP: 0010:ip_rt_bug+0x2c/0x110 net/ipv4/route.c:1241 Code: 1e fa 41 57 41 56 41 55 41 54 53 48 89 d3 e8 5b e1 81 f7 66 90 e8 54 e1 81 f7 31 ff 48 89 de ba 02 00 00 00 e8 75 94 6b 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:ffffc90000a18680 EFLAGS: 00010286 RAX: 0da9e5590e4c1e00 RBX: ffff888049aa4640 RCX: ffffffff8170417a RDX: dffffc0000000000 RSI: ffffffff8c0ad560 RDI: ffffffff8c606d40 RBP: 0000000000000001 R08: ffffffff937348df R09: 1ffffffff26e691b R10: dffffc0000000000 R11: fffffbfff26e691c R12: dffffc0000000000 R13: dffffc0000000000 R14: ffff888066bf8000 R15: ffff888016b4a080 FS: 00007fccf1eb1c80(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000000 CR3: 0000000023ab0000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ip_local_out net/ipv4/ip_output.c:129 [inline] ip_send_skb net/ipv4/ip_output.c:1495 [inline] ip_push_pending_frames+0xbf/0x150 net/ipv4/ip_output.c:1515 __icmp_send+0xf89/0x14e0 net/ipv4/icmp.c:777 ipv4_send_dest_unreach net/ipv4/route.c:1221 [inline] ipv4_link_failure+0x62f/0xa10 net/ipv4/route.c:1228 dst_link_failure include/net/dst.h:429 [inline] arp_error_report+0x114/0x160 net/ipv4/arp.c:296 neigh_invalidate+0x244/0x470 net/core/neighbour.c:1061 neigh_timer_handler+0x8a5/0xfe0 net/core/neighbour.c:1148 call_timer_fn+0x18e/0x650 kernel/time/timer.c:1792 expire_timers kernel/time/timer.c:1843 [inline] __run_timers kernel/time/timer.c:2417 [inline] __run_timer_base+0x66a/0x8e0 kernel/time/timer.c:2428 run_timer_base kernel/time/timer.c:2437 [inline] run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2447 handle_softirqs+0x2c4/0x970 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:1043 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:should_resched arch/x86/include/asm/preempt.h:103 [inline] RIP: 0010:unwind_next_frame+0x1e6c/0x2a00 arch/x86/kernel/unwind_orc.c:672 Code: 00 e9 06 fd ff ff e8 a3 45 52 00 eb 0c e8 9c 45 52 00 eb 05 e8 95 45 52 00 bf 01 00 00 00 e8 0b bd 21 00 65 8b 1d 4c 91 c2 7e <31> ff 89 de e8 bb 49 52 00 85 db 0f 84 9d 02 00 00 e8 6e 45 52 00 RSP: 0018:ffffc90003a97408 EFLAGS: 00000297 RAX: 0000000080000001 RBX: 0000000080000000 RCX: 0000000000000001 RDX: 0000000000000000 RSI: ffffc90003a978b8 RDI: 0000000000000001 RBP: ffffc90003a974e0 R08: ffffffff81414545 R09: ffffffff814140bf R10: 0000000000000003 R11: ffff8880667cbc00 R12: ffffc90003a978e0 R13: dffffc0000000000 R14: ffffc90003a90000 R15: ffffc90003a978e8 arch_stack_walk+0x151/0x1b0 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579 poison_slab_object+0xe0/0x150 mm/kasan/common.c:240 __kasan_slab_free+0x37/0x60 mm/kasan/common.c:256 kasan_slab_free include/linux/kasan.h:184 [inline] slab_free_hook mm/slub.c:2252 [inline] slab_free mm/slub.c:4473 [inline] kfree+0x149/0x360 mm/slub.c:4594 tomoyo_path_perm+0x5ab/0x740 security/tomoyo/file.c:842 security_inode_getattr+0xd8/0x130 security/security.c:2269 vfs_getattr+0x45/0x430 fs/stat.c:204 vfs_statx_path fs/stat.c:251 [inline] vfs_statx+0x199/0x490 fs/stat.c:315 vfs_fstatat+0x145/0x190 fs/stat.c:341 __do_sys_newfstatat fs/stat.c:505 [inline] __se_sys_newfstatat fs/stat.c:499 [inline] __x64_sys_newfstatat+0x11d/0x1a0 fs/stat.c:499 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: 0033:0x7fccf1f875f4 Code: 64 c7 00 09 00 00 00 83 c8 ff c3 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 00 00 00 00 41 89 ca b8 06 01 00 00 0f 05 <45> 31 c0 3d 00 f0 ff ff 76 10 48 8b 15 03 a8 0d 00 f7 d8 41 83 c8 RSP: 002b:00007ffc8d178e28 EFLAGS: 00000202 ORIG_RAX: 0000000000000106 RAX: ffffffffffffffda RBX: 0000562370dcc2b0 RCX: 00007fccf1f875f4 RDX: 00007ffc8d178e38 RSI: 00007ffc8d178ec8 RDI: 00000000ffffff9c RBP: 00005623640fb7b4 R08: 00005623640fb7b4 R09: 0000000000000000 R10: 0000000000000100 R11: 0000000000000202 R12: 0000000000000000 R13: 0000562370dcc3a0 R14: 00007ffc8d178ec8 R15: 0000562370dc5a10 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: e9 06 fd ff ff jmp 0xfffffd0b 5: e8 a3 45 52 00 call 0x5245ad a: eb 0c jmp 0x18 c: e8 9c 45 52 00 call 0x5245ad 11: eb 05 jmp 0x18 13: e8 95 45 52 00 call 0x5245ad 18: bf 01 00 00 00 mov $0x1,%edi 1d: e8 0b bd 21 00 call 0x21bd2d 22: 65 8b 1d 4c 91 c2 7e mov %gs:0x7ec2914c(%rip),%ebx # 0x7ec29175 * 29: 31 ff xor %edi,%edi <-- trapping instruction 2b: 89 de mov %ebx,%esi 2d: e8 bb 49 52 00 call 0x5249ed 32: 85 db test %ebx,%ebx 34: 0f 84 9d 02 00 00 je 0x2d7 3a: e8 6e 45 52 00 call 0x5245ad