./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor401973980

<...>
Warning: Permanently added '10.128.1.154' (ED25519) to the list of known hosts.
execve("./syz-executor401973980", ["./syz-executor401973980"], 0x7ffe6a38c990 /* 10 vars */) = 0
brk(NULL)                               = 0x55557cf50000
brk(0x55557cf50d00)                     = 0x55557cf50d00
arch_prctl(ARCH_SET_FS, 0x55557cf50380) = 0
set_tid_address(0x55557cf50650)         = 5837
set_robust_list(0x55557cf50660, 24)     = 0
rseq(0x55557cf50ca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor401973980", 4096) = 27
getrandom("\x2e\xe7\x66\x3c\x84\xbc\x73\xc5", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x55557cf50d00
brk(0x55557cf71d00)                     = 0x55557cf71d00
brk(0x55557cf72000)                     = 0x55557cf72000
mprotect(0x7fc6557d0000, 16384, PROT_READ) = 0
mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000
mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000
mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000
executing program
write(1, "executing program\n", 18)     = 18
socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 3
[   88.979595][ T5837] ------------[ cut here ]------------
[   88.985302][ T5837] UBSAN: array-index-out-of-bounds in ./include/net/ipv6.h:616:21
[   88.993786][ T5837] index 16 is out of range for type 'const __u8[16]' (aka 'const unsigned char[16]')
[   89.003450][ T5837] CPU: 0 UID: 0 PID: 5837 Comm: syz-executor401 Not tainted 6.15.0-rc3-syzkaller-00557-g5565acd1e6c4 #0 PREEMPT(full) 
[   89.003476][ T5837] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[   89.003494][ T5837] Call Trace:
[   89.003502][ T5837]  <TASK>
[   89.003510][ T5837]  dump_stack_lvl+0x189/0x250
[   89.003571][ T5837]  ? __pfx_dump_stack_lvl+0x10/0x10
[   89.003600][ T5837]  ? __pfx__printk+0x10/0x10
[   89.003617][ T5837]  ? _raw_spin_unlock_irqrestore+0xad/0x110
[   89.003659][ T5837]  ubsan_epilogue+0xa/0x40
[   89.003680][ T5837]  __ubsan_handle_out_of_bounds+0xe9/0xf0
[   89.003712][ T5837]  ? __asan_memcpy+0x40/0x70
[   89.003741][ T5837]  ipv6_addr_prefix+0x145/0x1d0
[   89.003771][ T5837]  ip6_route_info_create+0x629/0xa70
[   89.003810][ T5837]  inet6_rtm_newroute+0x578/0x1c70
[   89.003843][ T5837]  ? __lock_acquire+0xaac/0xd20
[   89.003876][ T5837]  ? __pfx_inet6_rtm_newroute+0x10/0x10
[   89.003964][ T5837]  ? __pfx_inet6_rtm_newroute+0x10/0x10
[   89.003991][ T5837]  rtnetlink_rcv_msg+0x7cc/0xb70
[   89.004019][ T5837]  ? kasan_save_track+0x4f/0x80
[   89.004044][ T5837]  ? rtnetlink_rcv_msg+0x1ab/0xb70
[   89.004072][ T5837]  ? __pfx_rtnetlink_rcv_msg+0x10/0x10
[   89.004102][ T5837]  ? __lock_acquire+0xaac/0xd20
[   89.004143][ T5837]  netlink_rcv_skb+0x219/0x490
[   89.004174][ T5837]  ? __pfx_rtnetlink_rcv_msg+0x10/0x10
[   89.004204][ T5837]  ? __pfx_netlink_rcv_skb+0x10/0x10
[   89.004252][ T5837]  ? netlink_deliver_tap+0x2e/0x1b0
[   89.004280][ T5837]  ? netlink_deliver_tap+0x2e/0x1b0
[   89.004314][ T5837]  netlink_unicast+0x758/0x8d0
[   89.004342][ T5837]  netlink_sendmsg+0x805/0xb30
[   89.004370][ T5837]  ? __pfx_netlink_sendmsg+0x10/0x10
[   89.004394][ T5837]  ? aa_sock_msg_perm+0x94/0x160
[   89.004410][ T5837]  ? bpf_lsm_socket_sendmsg+0x9/0x20
[   89.004426][ T5837]  ? __pfx_netlink_sendmsg+0x10/0x10
[   89.004449][ T5837]  __sock_sendmsg+0x219/0x270
[   89.004470][ T5837]  ____sys_sendmsg+0x505/0x830
[   89.004488][ T5837]  ? __pfx_____sys_sendmsg+0x10/0x10
[   89.004509][ T5837]  ? import_iovec+0x74/0xa0
[   89.004531][ T5837]  ___sys_sendmsg+0x21f/0x2a0
[   89.004547][ T5837]  ? __pfx____sys_sendmsg+0x10/0x10
[   89.004564][ T5837]  ? do_raw_spin_lock+0x121/0x290
[   89.004604][ T5837]  ? _raw_spin_lock_irq+0xae/0xf0
[   89.004637][ T5837]  __x64_sys_sendmsg+0x19b/0x260
[   89.004654][ T5837]  ? __pfx___x64_sys_sendmsg+0x10/0x10
[   89.004685][ T5837]  do_syscall_64+0xf6/0x210
[   89.004704][ T5837]  ? clear_bhb_loop+0x45/0xa0
[   89.004730][ T5837]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   89.004743][ T5837] RIP: 0033:0x7fc65575d369
[   89.004761][ T5837] Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 00 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 b8 ff ff ff f7 d8 64 89 01 48
[   89.004773][ T5837] RSP: 002b:00007fff8937e028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   89.004790][ T5837] RAX: ffffffffffffffda RBX: 00007fff8937e1f8 RCX: 00007fc65575d369
[   89.004801][ T5837] RDX: 0000000000000000 RSI: 0000200000000000 RDI: 0000000000000003
[   89.004809][ T5837] RBP: 00007fc6557d0610 R08: 0000000000000000 R09: 00007fff8937e1f8
[   89.004818][ T5837] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[   89.004826][ T5837] R13: 00007fff8937e1e8 R14: 0000000000000001 R15: 0000000000000001
[   89.004847][ T5837]  </TASK>
[   89.004852][ T5837] ---[ end trace ]---
[   89.326068][ T5837] Kernel panic - not syncing: UBSAN: panic_on_warn set ...
[   89.333264][ T5837] CPU: 0 UID: 0 PID: 5837 Comm: syz-executor401 Not tainted 6.15.0-rc3-syzkaller-00557-g5565acd1e6c4 #0 PREEMPT(full) 
[   89.345679][ T5837] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[   89.355738][ T5837] Call Trace:
[   89.359029][ T5837]  <TASK>
[   89.361968][ T5837]  dump_stack_lvl+0x99/0x250
[   89.366575][ T5837]  ? __asan_memcpy+0x40/0x70
[   89.371170][ T5837]  ? __pfx_dump_stack_lvl+0x10/0x10
[   89.376395][ T5837]  ? __pfx__printk+0x10/0x10
[   89.381001][ T5837]  panic+0x2db/0x790
[   89.384918][ T5837]  ? __pfx_panic+0x10/0x10
[   89.389350][ T5837]  ? _printk+0xcf/0x120
[   89.393521][ T5837]  ? __pfx__printk+0x10/0x10
[   89.398109][ T5837]  ? _raw_spin_unlock_irqrestore+0xad/0x110
[   89.404025][ T5837]  check_panic_on_warn+0x89/0xb0
[   89.409001][ T5837]  __ubsan_handle_out_of_bounds+0xe9/0xf0
[   89.414741][ T5837]  ? __asan_memcpy+0x40/0x70
[   89.419349][ T5837]  ipv6_addr_prefix+0x145/0x1d0
[   89.424207][ T5837]  ip6_route_info_create+0x629/0xa70
[   89.429507][ T5837]  inet6_rtm_newroute+0x578/0x1c70
[   89.434625][ T5837]  ? __lock_acquire+0xaac/0xd20
[   89.439482][ T5837]  ? __pfx_inet6_rtm_newroute+0x10/0x10
[   89.445070][ T5837]  ? __pfx_inet6_rtm_newroute+0x10/0x10
[   89.450615][ T5837]  rtnetlink_rcv_msg+0x7cc/0xb70
[   89.455557][ T5837]  ? kasan_save_track+0x4f/0x80
[   89.460424][ T5837]  ? rtnetlink_rcv_msg+0x1ab/0xb70
[   89.465543][ T5837]  ? __pfx_rtnetlink_rcv_msg+0x10/0x10
[   89.471007][ T5837]  ? __lock_acquire+0xaac/0xd20
[   89.475890][ T5837]  netlink_rcv_skb+0x219/0x490
[   89.480682][ T5837]  ? __pfx_rtnetlink_rcv_msg+0x10/0x10
[   89.486162][ T5837]  ? __pfx_netlink_rcv_skb+0x10/0x10
[   89.491473][ T5837]  ? netlink_deliver_tap+0x2e/0x1b0
[   89.496682][ T5837]  ? netlink_deliver_tap+0x2e/0x1b0
[   89.501897][ T5837]  netlink_unicast+0x758/0x8d0
[   89.506681][ T5837]  netlink_sendmsg+0x805/0xb30
[   89.511512][ T5837]  ? __pfx_netlink_sendmsg+0x10/0x10
[   89.516809][ T5837]  ? aa_sock_msg_perm+0x94/0x160
[   89.521744][ T5837]  ? bpf_lsm_socket_sendmsg+0x9/0x20
[   89.527033][ T5837]  ? __pfx_netlink_sendmsg+0x10/0x10
[   89.532324][ T5837]  __sock_sendmsg+0x219/0x270
[   89.537004][ T5837]  ____sys_sendmsg+0x505/0x830
[   89.541771][ T5837]  ? __pfx_____sys_sendmsg+0x10/0x10
[   89.547057][ T5837]  ? import_iovec+0x74/0xa0
[   89.551572][ T5837]  ___sys_sendmsg+0x21f/0x2a0
[   89.556268][ T5837]  ? __pfx____sys_sendmsg+0x10/0x10
[   89.561466][ T5837]  ? do_raw_spin_lock+0x121/0x290
[   89.566512][ T5837]  ? _raw_spin_lock_irq+0xae/0xf0
[   89.571568][ T5837]  __x64_sys_sendmsg+0x19b/0x260
[   89.576607][ T5837]  ? __pfx___x64_sys_sendmsg+0x10/0x10
[   89.582096][ T5837]  do_syscall_64+0xf6/0x210
[   89.586626][ T5837]  ? clear_bhb_loop+0x45/0xa0
[   89.591325][ T5837]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   89.597226][ T5837] RIP: 0033:0x7fc65575d369
[   89.601662][ T5837] Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 00 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 b8 ff ff ff f7 d8 64 89 01 48
[   89.621281][ T5837] RSP: 002b:00007fff8937e028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   89.629708][ T5837] RAX: ffffffffffffffda RBX: 00007fff8937e1f8 RCX: 00007fc65575d369
[   89.637679][ T5837] RDX: 0000000000000000 RSI: 0000200000000000 RDI: 0000000000000003
[   89.645663][ T5837] RBP: 00007fc6557d0610 R08: 0000000000000000 R09: 00007fff8937e1f8
[   89.653642][ T5837] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[   89.661611][ T5837] R13: 00007fff8937e1e8 R14: 0000000000000001 R15: 0000000000000001
[   89.669595][ T5837]  </TASK>
[   89.672965][ T5837] Kernel Offset: disabled
[   89.677297][ T5837] Rebooting in 86400 seconds..