./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor8989315 <...> Warning: Permanently added '10.128.0.128' (ED25519) to the list of known hosts. execve("./syz-executor8989315", ["./syz-executor8989315"], 0x7ffef8ccb500 /* 10 vars */) = 0 brk(NULL) = 0x55556da13000 brk(0x55556da13d00) = 0x55556da13d00 arch_prctl(ARCH_SET_FS, 0x55556da13380) = 0 set_tid_address(0x55556da13650) = 5229 set_robust_list(0x55556da13660, 24) = 0 rseq(0x55556da13ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor8989315", 4096) = 25 getrandom("\xfa\x2a\xd6\x05\x43\x91\xdf\xc0", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556da13d00 brk(0x55556da34d00) = 0x55556da34d00 brk(0x55556da35000) = 0x55556da35000 mprotect(0x7f3ba2bee000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5230 attached [pid 5230] set_robust_list(0x55556da13660, 24 [pid 5229] <... clone resumed>, child_tidptr=0x55556da13650) = 5230 [pid 5230] <... set_robust_list resumed>) = 0 [pid 5230] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5230] setpgid(0, 0) = 0 [pid 5230] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5230] write(3, "1000", 4) = 4 [pid 5230] close(3) = 0 [pid 5230] write(1, "executing program\n", 18executing program ) = 18 [pid 5230] socket(AF_NETLINK, SOCK_RAW, NETLINK_XFRM) = 3 [pid 5230] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\x5c\x01\x00\x00\x10\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xbb\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xac\x14\x14\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x6c\x00\x00\x00\x00\x00\x00\x00"..., iov_len=348}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 348 [pid 5230] socket(AF_INET6, SOCK_RAW, IPPROTO_UDPLITE) = 4 [pid 5230] setsockopt(4, SOL_IPV6, IPV6_XFRM_POLICY, "\xac\x14\x14\xaa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 232) = 0 [ 70.873414][ T5230] ------------[ cut here ]------------ [ 70.879419][ T5230] UBSAN: shift-out-of-bounds in ./include/net/xfrm.h:905:23 [ 70.886822][ T5230] shift exponent -96 is negative [ 70.891823][ T5230] CPU: 1 UID: 0 PID: 5230 Comm: syz-executor898 Not tainted 6.11.0-next-20240927-syzkaller #0 [ 70.902108][ T5230] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 70.912375][ T5230] Call Trace: [ 70.915683][ T5230] [ 70.918632][ T5230] dump_stack_lvl+0x241/0x360 [ 70.923373][ T5230] ? __pfx_dump_stack_lvl+0x10/0x10 [ 70.928611][ T5230] ? __pfx__printk+0x10/0x10 [ 70.933425][ T5230] __ubsan_handle_shift_out_of_bounds+0x3c8/0x420 [ 70.940130][ T5230] xfrm_selector_match+0xe9b/0x1030 [ 70.945399][ T5230] xfrm_state_look_at+0xe8/0x480 [ 70.950405][ T5230] xfrm_state_find+0xd9f/0x4d70 [ 70.955369][ T5230] ? __pfx_validate_chain+0x10/0x10 [ 70.960595][ T5230] ? xfrm_state_find+0x42f/0x4d70 [ 70.965639][ T5230] ? __pfx_xfrm_state_find+0x10/0x10 [ 70.970948][ T5230] ? __pfx_validate_chain+0x10/0x10 [ 70.976156][ T5230] ? stack_trace_save+0x118/0x1d0 [ 70.981221][ T5230] ? __pfx_validate_chain+0x10/0x10 [ 70.986481][ T5230] ? mark_lock+0x9a/0x360 [ 70.990925][ T5230] ? __lock_acquire+0x1384/0x2050 [ 70.995965][ T5230] xfrm_resolve_and_create_bundle+0x7de/0x3360 [ 71.002163][ T5230] ? __pfx_xfrm_resolve_and_create_bundle+0x10/0x10 [ 71.008800][ T5230] ? __pfx_lock_acquire+0x10/0x10 [ 71.013885][ T5230] ? xfrm_sk_policy_lookup+0x93/0x840 [ 71.019287][ T5230] ? xfrm_sk_policy_lookup+0x7ef/0x840 [ 71.024769][ T5230] ? xfrm_sk_policy_lookup+0x93/0x840 [ 71.030198][ T5230] ? __pfx_lock_release+0x10/0x10 [ 71.035251][ T5230] ? xfrm_expand_policies+0x3fb/0x690 [ 71.040660][ T5230] xfrm_lookup_with_ifid+0x334/0x1ee0 [ 71.046165][ T5230] ? ip_route_output_key_hash+0x226/0x2b0 [ 71.051910][ T5230] ? __pfx_xfrm_lookup_with_ifid+0x10/0x10 [ 71.057818][ T5230] ? ip_route_output_key_hash+0xdf/0x2b0 [ 71.063465][ T5230] ? __pfx_ip_route_output_key_hash+0x10/0x10 [ 71.069558][ T5230] ? rcuref_put+0x1e3/0x240 [ 71.074082][ T5230] xfrm_lookup_route+0x3c/0x1c0 [ 71.079068][ T5230] __ip4_datagram_connect+0x96c/0x1260 [ 71.084562][ T5230] __ip6_datagram_connect+0x194/0x1230 [ 71.090128][ T5230] ? __pfx___ip6_datagram_connect+0x10/0x10 [ 71.096047][ T5230] ? ip6_datagram_connect_v6_only+0x55/0xa0 [ 71.102019][ T5230] ? __pfx___local_bh_enable_ip+0x10/0x10 [ 71.107763][ T5230] ? do_raw_spin_unlock+0x13c/0x8b0 [ 71.112981][ T5230] ? __pfx_inet_dgram_connect+0x10/0x10 [ 71.118538][ T5230] ? __pfx_inet_dgram_connect+0x10/0x10 [ 71.124102][ T5230] ip6_datagram_connect_v6_only+0x63/0xa0 [ 71.129931][ T5230] __sys_connect+0x2d1/0x300 [ 71.134582][ T5230] ? lockdep_hardirqs_on+0x99/0x150 [ 71.139815][ T5230] ? __pfx___sys_connect+0x10/0x10 [ 71.145045][ T5230] ? ptrace_notify+0x279/0x380 [ 71.149844][ T5230] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 71.156282][ T5230] ? do_syscall_64+0x100/0x230 [ 71.161065][ T5230] __x64_sys_connect+0x7a/0x90 [ 71.165843][ T5230] do_syscall_64+0xf3/0x230 [ 71.170361][ T5230] ? clear_bhb_loop+0x35/0x90 [ 71.175153][ T5230] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 71.181069][ T5230] RIP: 0033:0x7f3ba2b7aeb9 [ 71.185499][ T5230] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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 b8 ff ff ff f7 d8 64 89 01 48 [ 71.205119][ T5230] RSP: 002b:00007ffffd2ac058 EFLAGS: 00000246 ORIG_RAX: 000000000000002a [ 71.213678][ T5230] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3ba2b7aeb9 [ 71.221664][ T5230] RDX: 000000000000001c RSI: 0000000020000000 RDI: 0000000000000004 [ 71.229646][ T5230] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006 [ 71.237678][ T5230] R10: 00000000000000e8 R11: 0000000000000246 R12: 0000000000000000 [ 71.245655][ T5230] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001 [ 71.253651][ T5230] [ 71.258136][ T5230] ---[ end trace ]--- [ 71.262259][ T5230] Kernel panic - not syncing: UBSAN: panic_on_warn set ... [ 71.269484][ T5230] CPU: 1 UID: 0 PID: 5230 Comm: syz-executor898 Not tainted 6.11.0-next-20240927-syzkaller #0 [ 71.279844][ T5230] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 71.289950][ T5230] Call Trace: [ 71.293232][ T5230] [ 71.296177][ T5230] dump_stack_lvl+0x241/0x360 [ 71.300869][ T5230] ? __pfx_dump_stack_lvl+0x10/0x10 [ 71.306096][ T5230] ? __pfx__printk+0x10/0x10 [ 71.310714][ T5230] ? lockdep_hardirqs_on+0x99/0x150 [ 71.315941][ T5230] ? vscnprintf+0x5d/0x90 [ 71.320292][ T5230] panic+0x349/0x880 [ 71.324214][ T5230] ? check_panic_on_warn+0x21/0xb0 [ 71.329769][ T5230] ? __pfx_panic+0x10/0x10 [ 71.334188][ T5230] ? _printk+0xd5/0x120 [ 71.338352][ T5230] ? __pfx__printk+0x10/0x10 [ 71.342962][ T5230] check_panic_on_warn+0x86/0xb0 [ 71.347909][ T5230] __ubsan_handle_shift_out_of_bounds+0x3e7/0x420 [ 71.354354][ T5230] xfrm_selector_match+0xe9b/0x1030 [ 71.359572][ T5230] xfrm_state_look_at+0xe8/0x480 [ 71.364532][ T5230] xfrm_state_find+0xd9f/0x4d70 [ 71.369425][ T5230] ? __pfx_validate_chain+0x10/0x10 [ 71.374653][ T5230] ? xfrm_state_find+0x42f/0x4d70 [ 71.380228][ T5230] ? __pfx_xfrm_state_find+0x10/0x10 [ 71.385544][ T5230] ? __pfx_validate_chain+0x10/0x10 [ 71.390765][ T5230] ? stack_trace_save+0x118/0x1d0 [ 71.395914][ T5230] ? __pfx_validate_chain+0x10/0x10 [ 71.401225][ T5230] ? mark_lock+0x9a/0x360 [ 71.405654][ T5230] ? __lock_acquire+0x1384/0x2050 [ 71.410689][ T5230] xfrm_resolve_and_create_bundle+0x7de/0x3360 [ 71.416883][ T5230] ? __pfx_xfrm_resolve_and_create_bundle+0x10/0x10 [ 71.423583][ T5230] ? __pfx_lock_acquire+0x10/0x10 [ 71.428628][ T5230] ? xfrm_sk_policy_lookup+0x93/0x840 [ 71.434029][ T5230] ? xfrm_sk_policy_lookup+0x7ef/0x840 [ 71.439593][ T5230] ? xfrm_sk_policy_lookup+0x93/0x840 [ 71.445076][ T5230] ? __pfx_lock_release+0x10/0x10 [ 71.450111][ T5230] ? xfrm_expand_policies+0x3fb/0x690 [ 71.455588][ T5230] xfrm_lookup_with_ifid+0x334/0x1ee0 [ 71.460979][ T5230] ? ip_route_output_key_hash+0x226/0x2b0 [ 71.466714][ T5230] ? __pfx_xfrm_lookup_with_ifid+0x10/0x10 [ 71.472542][ T5230] ? ip_route_output_key_hash+0xdf/0x2b0 [ 71.478212][ T5230] ? __pfx_ip_route_output_key_hash+0x10/0x10 [ 71.484301][ T5230] ? rcuref_put+0x1e3/0x240 [ 71.488828][ T5230] xfrm_lookup_route+0x3c/0x1c0 [ 71.493696][ T5230] __ip4_datagram_connect+0x96c/0x1260 [ 71.499220][ T5230] __ip6_datagram_connect+0x194/0x1230 [ 71.504698][ T5230] ? __pfx___ip6_datagram_connect+0x10/0x10 [ 71.510596][ T5230] ? ip6_datagram_connect_v6_only+0x55/0xa0 [ 71.516495][ T5230] ? __pfx___local_bh_enable_ip+0x10/0x10 [ 71.522234][ T5230] ? do_raw_spin_unlock+0x13c/0x8b0 [ 71.527453][ T5230] ? __pfx_inet_dgram_connect+0x10/0x10 [ 71.533011][ T5230] ? __pfx_inet_dgram_connect+0x10/0x10 [ 71.538567][ T5230] ip6_datagram_connect_v6_only+0x63/0xa0 [ 71.544646][ T5230] __sys_connect+0x2d1/0x300 [ 71.549251][ T5230] ? lockdep_hardirqs_on+0x99/0x150 [ 71.554467][ T5230] ? __pfx___sys_connect+0x10/0x10 [ 71.559597][ T5230] ? ptrace_notify+0x279/0x380 [ 71.564473][ T5230] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 71.570824][ T5230] ? do_syscall_64+0x100/0x230 [ 71.575625][ T5230] __x64_sys_connect+0x7a/0x90 [ 71.580418][ T5230] do_syscall_64+0xf3/0x230 [ 71.584942][ T5230] ? clear_bhb_loop+0x35/0x90 [ 71.589722][ T5230] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 71.595663][ T5230] RIP: 0033:0x7f3ba2b7aeb9 [ 71.600090][ T5230] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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 b8 ff ff ff f7 d8 64 89 01 48 [ 71.619800][ T5230] RSP: 002b:00007ffffd2ac058 EFLAGS: 00000246 ORIG_RAX: 000000000000002a [ 71.628237][ T5230] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3ba2b7aeb9 [ 71.636305][ T5230] RDX: 000000000000001c RSI: 0000000020000000 RDI: 0000000000000004 [ 71.644376][ T5230] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006 [ 71.652362][ T5230] R10: 00000000000000e8 R11: 0000000000000246 R12: 0000000000000000 [ 71.660356][ T5230] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001 [ 71.668355][ T5230] [ 71.673478][ T5230] Kernel Offset: disabled [ 71.677855][ T5230] Rebooting in 86400 seconds..