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WARNING: net/ipv4/route.c:1275 at ip_rt_bug+0x2d/0x140 net/ipv4/route.c:1275, CPU#0: syz-executor/5613
Modules linked in:
CPU: 0 UID: 0 PID: 5613 Comm: syz-executor Tainted: G L syzkaller #0 PREEMPT(full)
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:ip_rt_bug+0x2d/0x140 net/ipv4/route.c:1275
Code: fa 55 41 57 41 56 41 55 41 54 53 48 89 d3 e8 1a 30 b9 f7 66 90 e8 13 30 b9 f7 31 ff 48 89 de ba 02 00 00 00 e8 14 aa 68 ff 90 <0f> 0b 90 31 c0 5b 41 5c 41 5d 41 5e 41 5f 5d e9 4f ab 9e 01 cc 49
RSP: 0018:ffffc90000007720 EFLAGS: 00010286
RAX: 22d12a1eab41ff00 RBX: ffff88807d20fa00 RCX: 0000000000000301
RDX: 0000000000000002 RSI: ffffffff8dfa5a5d RDI: ffffffff8c28ac60
RBP: ffffc90000007a10 R08: ffffffff9030a7f7 R09: 1ffffffff20614fe
R10: dffffc0000000000 R11: fffffbfff20614ff R12: dffffc0000000000
R13: 0000000000000000 R14: ffff88807d20fa00 R15: dffffc0000000000
FS: 00005555747dd540(0000) GS:ffff888125290000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fea33d3eccc CR3: 000000007676c000 CR4: 00000000003526f0
DR0: ffffffffffffffff DR1: 000000000000000b DR2: 0000000000000083
DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
ip_send_skb net/ipv4/ip_output.c:1508 [inline]
ip_push_pending_frames+0x8b/0x110 net/ipv4/ip_output.c:1528
__icmp_send+0x11e4/0x1690 net/ipv4/icmp.c:1000
ipv4_send_dest_unreach net/ipv4/route.c:1255 [inline]
ipv4_link_failure+0x66c/0xa70 net/ipv4/route.c:1262
dst_link_failure include/net/dst.h:438 [inline]
arp_error_report+0x118/0x160 net/ipv4/arp.c:296
neigh_invalidate+0x235/0x460 net/core/neighbour.c:1080
neigh_timer_handler+0xb99/0x11b0 net/core/neighbour.c:1172
call_timer_fn+0x192/0x5e0 kernel/time/timer.c:1748
expire_timers kernel/time/timer.c:1799 [inline]
__run_timers kernel/time/timer.c:2374 [inline]
__run_timer_base+0x652/0x8b0 kernel/time/timer.c:2386
run_timer_base kernel/time/timer.c:2395 [inline]
run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2405
handle_softirqs+0x22a/0x840 kernel/softirq.c:622
__do_softirq kernel/softirq.c:656 [inline]
invoke_softirq kernel/softirq.c:496 [inline]
__irq_exit_rcu+0xca/0x220 kernel/softirq.c:735
irq_exit_rcu+0x9/0x30 kernel/softirq.c:752
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1061 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1061
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:aa_file_perm+0x245/0x15e0 security/apparmor/file.c:638
Code: 0b 01 48 c7 c7 a0 93 21 8c be 48 03 00 00 48 c7 c2 e0 93 21 8c e8 9b 03 34 fd 4c 8d 73 40 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 <74> 08 4c 89 f7 e8 e1 02 c3 fd 4d 8b 36 e8 b9 55 3a 07 41 89 c4 31
RSP: 0018:ffffc90003917a00 EFLAGS: 00000246
RAX: 1ffff1100ecf4ab3 RBX: ffff8880767a5558 RCX: ffff888036135c40
RDX: 0000000000000000 RSI: ffffffff8c28ac40 RDI: ffffffff8c28ac00
RBP: ffffc90003917be0 R08: ffffffff846df412 R09: ffffffff8e95cd60
R10: dffffc0000000000 R11: ffffed10065f5a59 R12: dffffc0000000000
R13: ffff88802a999900 R14: ffff8880767a5598 R15: ffff88807676b588
common_file_perm security/apparmor/lsm.c:530 [inline]
apparmor_file_permission+0x14d/0x300 security/apparmor/lsm.c:543
security_file_permission+0x8d/0x260 security/security.c:2392
rw_verify_area+0xbb/0x4d0 fs/read_write.c:475
vfs_read+0x160/0xa70 fs/read_write.c:565
ksys_read+0x150/0x270 fs/read_write.c:717
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5579f57f57
Code: 48 89 fa 4c 89 df e8 a8 56 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
RSP: 002b:00007fff6de2ddf0 EFLAGS: 00000202 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00005555747dd540 RCX: 00007f5579f57f57
RDX: 0000000000000004 RSI: 00007fff6de2de4c RDI: 0000000000000003
RBP: 00007fff6de2e2f0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
R13: 00007fff6de2de4c R14: 00007fff6de2dee0 R15: 0000000000000000
----------------
Code disassembly (best guess):
0: 0b 01 or (%rcx),%eax
2: 48 c7 c7 a0 93 21 8c mov $0xffffffff8c2193a0,%rdi
9: be 48 03 00 00 mov $0x348,%esi
e: 48 c7 c2 e0 93 21 8c mov $0xffffffff8c2193e0,%rdx
15: e8 9b 03 34 fd call 0xfd3403b5
1a: 4c 8d 73 40 lea 0x40(%rbx),%r14
1e: 4c 89 f0 mov %r14,%rax
21: 48 c1 e8 03 shr $0x3,%rax
25: 42 80 3c 20 00 cmpb $0x0,(%rax,%r12,1)
* 2a: 74 08 je 0x34 <-- trapping instruction
2c: 4c 89 f7 mov %r14,%rdi
2f: e8 e1 02 c3 fd call 0xfdc30315
34: 4d 8b 36 mov (%r14),%r14
37: e8 b9 55 3a 07 call 0x73a55f5
3c: 41 89 c4 mov %eax,%r12d
3f: 31 .byte 0x31