./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2115002224 <...> Warning: Permanently added '10.128.0.101' (ED25519) to the list of known hosts. execve("./syz-executor2115002224", ["./syz-executor2115002224"], 0x7ffc55e59dc0 /* 10 vars */) = 0 brk(NULL) = 0x55557496d000 brk(0x55557496dd00) = 0x55557496dd00 arch_prctl(ARCH_SET_FS, 0x55557496d380) = 0 set_tid_address(0x55557496d650) = 5848 set_robust_list(0x55557496d660, 24) = 0 rseq(0x55557496dca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2115002224", 4096) = 28 getrandom("\xc6\x7b\x14\x8d\x61\x8b\x1f\xc6", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557496dd00 brk(0x55557498ed00) = 0x55557498ed00 brk(0x55557498f000) = 0x55557498f000 mprotect(0x7f666ce97000, 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 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5849 attached [pid 5849] set_robust_list(0x55557496d660, 24 [pid 5848] <... clone resumed>, child_tidptr=0x55557496d650) = 5849 [pid 5849] <... set_robust_list resumed>) = 0 [pid 5849] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5849] getppid() = 0 [pid 5849] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5849] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5849] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5849] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5849] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5849] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5849] unshare(CLONE_NEWNS) = 0 [pid 5849] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5849] unshare(CLONE_NEWIPC) = 0 [pid 5849] unshare(CLONE_NEWCGROUP) = 0 [pid 5849] unshare(CLONE_NEWUTS) = 0 [pid 5849] unshare(CLONE_SYSVSEM) = 0 [pid 5849] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5849] write(3, "16777216", 8) = 8 [pid 5849] close(3) = 0 [pid 5849] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5849] write(3, "536870912", 9) = 9 [pid 5849] close(3) = 0 [pid 5849] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5849] write(3, "1024", 4) = 4 [pid 5849] close(3) = 0 [pid 5849] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5849] write(3, "8192", 4) = 4 [pid 5849] close(3) = 0 [pid 5849] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5849] write(3, "1024", 4) = 4 [pid 5849] close(3) = 0 [pid 5849] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5849] write(3, "1024", 4) = 4 [pid 5849] close(3) = 0 [pid 5849] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5849] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5849] close(3) = 0 [pid 5849] getpid() = 1 [pid 5849] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5871] set_robust_list(0x55557496d660, 24 [pid 5849] <... clone resumed>, child_tidptr=0x55557496d650) = 2 [pid 5871] <... set_robust_list resumed>) = 0 [pid 5871] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5871] setpgid(0, 0) = 0 [pid 5871] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5871] write(3, "1000", 4) = 4 [pid 5871] close(3) = 0 [pid 5871] write(1, "executing program\n", 18executing program ) = 18 [pid 5871] socket(AF_PACKET, SOCK_RAW, htons(0 /* ETH_P_??? */)) = 3 [pid 5871] setsockopt(3, SOL_PACKET, PACKET_VNET_HDR, [-1], 4) = 0 [ 83.374165][ T5871] ------------[ cut here ]------------ [ 83.379755][ T5871] WARNING: CPU: 0 PID: 5871 at ./include/linux/skbuff.h:3032 ipv6_gso_segment+0x15e2/0x21e0 [ 83.389927][ T5871] Modules linked in: [ 83.393968][ T5871] CPU: 0 UID: 0 PID: 5871 Comm: syz-executor211 Not tainted 6.16.0-rc6-syzkaller-g7abc678e3084 #0 PREEMPT(full) [ 83.405904][ T5871] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 83.416007][ T5871] RIP: 0010:ipv6_gso_segment+0x15e2/0x21e0 [ 83.421828][ T5871] Code: ff ff e8 f1 db 80 f7 49 c7 c5 a3 ff ff ff e9 27 fe ff ff e8 e0 db 80 f7 49 c7 c5 a3 ff ff ff e9 16 fe ff ff e8 cf db 80 f7 90 <0f> 0b 90 e9 71 f5 ff ff e8 c1 db 80 f7 e9 d3 00 00 00 e8 b7 db 80 [ 83.441484][ T5871] RSP: 0018:ffffc9000405ed00 EFLAGS: 00010293 [ 83.447581][ T5871] RAX: ffffffff8a3f4d21 RBX: ffffffff8de66da0 RCX: ffff88802a48bc00 [ 83.455578][ T5871] RDX: 0000000000000000 RSI: 00000000000100f4 RDI: 0000000000010000 [ 83.463572][ T5871] RBP: ffffc9000405ee30 R08: ffffea0000cc43c0 R09: 0000013a000001a7 [ 83.471547][ T5871] R10: ffffea0000cc43c0 R11: 0000013a000001a7 R12: 1ffffffff1bccdb4 [ 83.479598][ T5871] R13: ffff888031129140 R14: 00000000000100f4 R15: ffff888031129210 [ 83.487607][ T5871] FS: 000055557496d380(0000) GS:ffff888125c23000(0000) knlGS:0000000000000000 [ 83.496567][ T5871] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 83.503183][ T5871] CR2: 0000200000010000 CR3: 0000000077872000 CR4: 00000000003526f0 [ 83.511168][ T5871] Call Trace: [ 83.514480][ T5871] [ 83.517423][ T5871] ? __pfx_ipv6_gso_segment+0x10/0x10 [ 83.522851][ T5871] ? __pfx_ipv6_gso_segment+0x10/0x10 [ 83.528240][ T5871] skb_mac_gso_segment+0x31c/0x640 [ 83.533414][ T5871] ? skb_mac_gso_segment+0x17e/0x640 [ 83.538715][ T5871] ? __pfx_skb_mac_gso_segment+0x10/0x10 [ 83.544412][ T5871] ? __lock_acquire+0xab9/0xd20 [ 83.549280][ T5871] nsh_gso_segment+0x54a/0xe10 [ 83.554099][ T5871] ? __pfx_nsh_gso_segment+0x10/0x10 [ 83.559398][ T5871] skb_mac_gso_segment+0x31c/0x640 [ 83.564551][ T5871] ? skb_mac_gso_segment+0x17e/0x640 [ 83.569848][ T5871] ? __pfx_skb_mac_gso_segment+0x10/0x10 [ 83.575538][ T5871] __skb_gso_segment+0x342/0x510 [ 83.580499][ T5871] validate_xmit_skb+0x857/0x11b0 [ 83.585560][ T5871] ? __pfx_validate_xmit_skb+0x10/0x10 [ 83.591028][ T5871] validate_xmit_skb_list+0x84/0x120 [ 83.596352][ T5871] sch_direct_xmit+0xd3/0x4b0 [ 83.601044][ T5871] ? __pfx_sch_direct_xmit+0x10/0x10 [ 83.606363][ T5871] __dev_queue_xmit+0x17b6/0x3a70 [ 83.611396][ T5871] ? __dev_queue_xmit+0x27e/0x3a70 [ 83.616540][ T5871] ? __pskb_pull_tail+0xb59/0x15b0 [ 83.621656][ T5871] ? __asan_memcpy+0x40/0x70 [ 83.626283][ T5871] ? __pfx___dev_queue_xmit+0x10/0x10 [ 83.631660][ T5871] ? skb_partial_csum_set+0x107/0x360 [ 83.637077][ T5871] ? virtio_net_hdr_to_skb+0x9e1/0x1490 [ 83.642663][ T5871] ? packet_parse_headers+0x7ff/0xb60 [ 83.648070][ T5871] ? __pfx_virtio_net_hdr_to_skb+0x10/0x10 [ 83.653942][ T5871] ? packet_xmit+0x68/0x330 [ 83.658462][ T5871] packet_sendmsg+0x3e16/0x5060 [ 83.663360][ T5871] ? aa_bind_mount+0x140/0x590 [ 83.668168][ T5871] ? __pfx___might_resched+0x10/0x10 [ 83.673525][ T5871] ? cpuacct_charge+0x117/0x320 [ 83.678387][ T5871] ? xfd_validate_state+0x6d/0x150 [ 83.683518][ T5871] ? save_fpregs_to_fpstate+0xa3/0x210 [ 83.688985][ T5871] ? __pfx_packet_sendmsg+0x10/0x10 [ 83.694220][ T5871] ? aa_sk_perm+0x81e/0x950 [ 83.698731][ T5871] ? tomoyo_socket_sendmsg_permission+0x1e1/0x300 [ 83.705176][ T5871] ? __lock_acquire+0xab9/0xd20 [ 83.710031][ T5871] ? aa_sock_msg_perm+0x94/0x160 [ 83.714995][ T5871] ? bpf_lsm_socket_sendmsg+0x9/0x20 [ 83.720287][ T5871] ? __pfx_packet_sendmsg+0x10/0x10 [ 83.725523][ T5871] __sock_sendmsg+0x21c/0x270 [ 83.730211][ T5871] ____sys_sendmsg+0x505/0x830 [ 83.735013][ T5871] ? __pfx_____sys_sendmsg+0x10/0x10 [ 83.740315][ T5871] ? import_iovec+0x74/0xa0 [ 83.744855][ T5871] ___sys_sendmsg+0x21f/0x2a0 [ 83.749543][ T5871] ? __pfx____sys_sendmsg+0x10/0x10 [ 83.754778][ T5871] ? do_raw_spin_lock+0x121/0x290 [ 83.759847][ T5871] __x64_sys_sendmsg+0x19b/0x260 [ 83.764815][ T5871] ? _raw_spin_unlock_irq+0x2e/0x50 [ 83.770015][ T5871] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 83.775534][ T5871] ? rcu_is_watching+0x15/0xb0 [ 83.780323][ T5871] do_syscall_64+0xfa/0x3b0 [ 83.784870][ T5871] ? lockdep_hardirqs_on+0x9c/0x150 [ 83.790077][ T5871] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 83.796181][ T5871] ? clear_bhb_loop+0x60/0xb0 [ 83.800874][ T5871] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 83.806796][ T5871] RIP: 0033:0x7f666ce1dea9 [ 83.811233][ T5871] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 01 1a 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 [ 83.830906][ T5871] RSP: 002b:00007ffd9d1a1e28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 83.839361][ T5871] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f666ce1dea9 [ 83.847372][ T5871] RDX: 00000000200400c4 RSI: 0000200000000180 RDI: 0000000000000003 [ 83.855375][ T5871] RBP: 00000000000f4240 R08: 0000000000000001 R09: 0000000000000001 [ 83.863419][ T5871] R10: 0000200000000180 R11: 0000000000000246 R12: 00007ffd9d1a1e80 [ 83.871414][ T5871] R13: 00007f666ce6b3fe R14: 0000000000000003 R15: 00007ffd9d1a1e60 [ 83.879447][ T5871] [ 83.882511][ T5871] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 83.889790][ T5871] CPU: 0 UID: 0 PID: 5871 Comm: syz-executor211 Not tainted 6.16.0-rc6-syzkaller-g7abc678e3084 #0 PREEMPT(full) [ 83.901750][ T5871] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 83.911797][ T5871] Call Trace: [ 83.915076][ T5871] [ 83.918001][ T5871] dump_stack_lvl+0x99/0x250 [ 83.922593][ T5871] ? __asan_memcpy+0x40/0x70 [ 83.927178][ T5871] ? __pfx_dump_stack_lvl+0x10/0x10 [ 83.932375][ T5871] ? __pfx__printk+0x10/0x10 [ 83.936984][ T5871] panic+0x2db/0x790 [ 83.940880][ T5871] ? __pfx_panic+0x10/0x10 [ 83.945290][ T5871] ? show_trace_log_lvl+0x4fb/0x550 [ 83.950497][ T5871] __warn+0x31b/0x4b0 [ 83.954470][ T5871] ? ipv6_gso_segment+0x15e2/0x21e0 [ 83.959664][ T5871] ? ipv6_gso_segment+0x15e2/0x21e0 [ 83.964860][ T5871] report_bug+0x2be/0x4f0 [ 83.969186][ T5871] ? ipv6_gso_segment+0x15e2/0x21e0 [ 83.974380][ T5871] ? ipv6_gso_segment+0x15e2/0x21e0 [ 83.979570][ T5871] ? ipv6_gso_segment+0x15e4/0x21e0 [ 83.984758][ T5871] handle_bug+0x84/0x160 [ 83.989001][ T5871] exc_invalid_op+0x1a/0x50 [ 83.993504][ T5871] asm_exc_invalid_op+0x1a/0x20 [ 83.998343][ T5871] RIP: 0010:ipv6_gso_segment+0x15e2/0x21e0 [ 84.004143][ T5871] Code: ff ff e8 f1 db 80 f7 49 c7 c5 a3 ff ff ff e9 27 fe ff ff e8 e0 db 80 f7 49 c7 c5 a3 ff ff ff e9 16 fe ff ff e8 cf db 80 f7 90 <0f> 0b 90 e9 71 f5 ff ff e8 c1 db 80 f7 e9 d3 00 00 00 e8 b7 db 80 [ 84.023744][ T5871] RSP: 0018:ffffc9000405ed00 EFLAGS: 00010293 [ 84.029806][ T5871] RAX: ffffffff8a3f4d21 RBX: ffffffff8de66da0 RCX: ffff88802a48bc00 [ 84.037773][ T5871] RDX: 0000000000000000 RSI: 00000000000100f4 RDI: 0000000000010000 [ 84.045741][ T5871] RBP: ffffc9000405ee30 R08: ffffea0000cc43c0 R09: 0000013a000001a7 [ 84.053706][ T5871] R10: ffffea0000cc43c0 R11: 0000013a000001a7 R12: 1ffffffff1bccdb4 [ 84.061666][ T5871] R13: ffff888031129140 R14: 00000000000100f4 R15: ffff888031129210 [ 84.069641][ T5871] ? ipv6_gso_segment+0x15e1/0x21e0 [ 84.074858][ T5871] ? __pfx_ipv6_gso_segment+0x10/0x10 [ 84.080231][ T5871] ? __pfx_ipv6_gso_segment+0x10/0x10 [ 84.085686][ T5871] skb_mac_gso_segment+0x31c/0x640 [ 84.090802][ T5871] ? skb_mac_gso_segment+0x17e/0x640 [ 84.096256][ T5871] ? __pfx_skb_mac_gso_segment+0x10/0x10 [ 84.101889][ T5871] ? __lock_acquire+0xab9/0xd20 [ 84.106739][ T5871] nsh_gso_segment+0x54a/0xe10 [ 84.111514][ T5871] ? __pfx_nsh_gso_segment+0x10/0x10 [ 84.116798][ T5871] skb_mac_gso_segment+0x31c/0x640 [ 84.121910][ T5871] ? skb_mac_gso_segment+0x17e/0x640 [ 84.127192][ T5871] ? __pfx_skb_mac_gso_segment+0x10/0x10 [ 84.132834][ T5871] __skb_gso_segment+0x342/0x510 [ 84.137773][ T5871] validate_xmit_skb+0x857/0x11b0 [ 84.142799][ T5871] ? __pfx_validate_xmit_skb+0x10/0x10 [ 84.148275][ T5871] validate_xmit_skb_list+0x84/0x120 [ 84.153581][ T5871] sch_direct_xmit+0xd3/0x4b0 [ 84.158285][ T5871] ? __pfx_sch_direct_xmit+0x10/0x10 [ 84.163597][ T5871] __dev_queue_xmit+0x17b6/0x3a70 [ 84.168639][ T5871] ? __dev_queue_xmit+0x27e/0x3a70 [ 84.173759][ T5871] ? __pskb_pull_tail+0xb59/0x15b0 [ 84.178878][ T5871] ? __asan_memcpy+0x40/0x70 [ 84.183471][ T5871] ? __pfx___dev_queue_xmit+0x10/0x10 [ 84.188841][ T5871] ? skb_partial_csum_set+0x107/0x360 [ 84.194219][ T5871] ? virtio_net_hdr_to_skb+0x9e1/0x1490 [ 84.199758][ T5871] ? packet_parse_headers+0x7ff/0xb60 [ 84.205135][ T5871] ? __pfx_virtio_net_hdr_to_skb+0x10/0x10 [ 84.210936][ T5871] ? packet_xmit+0x68/0x330 [ 84.215433][ T5871] packet_sendmsg+0x3e16/0x5060 [ 84.220292][ T5871] ? aa_bind_mount+0x140/0x590 [ 84.225073][ T5871] ? __pfx___might_resched+0x10/0x10 [ 84.230351][ T5871] ? cpuacct_charge+0x117/0x320 [ 84.235203][ T5871] ? xfd_validate_state+0x6d/0x150 [ 84.240306][ T5871] ? save_fpregs_to_fpstate+0xa3/0x210 [ 84.245760][ T5871] ? __pfx_packet_sendmsg+0x10/0x10 [ 84.250954][ T5871] ? aa_sk_perm+0x81e/0x950 [ 84.255454][ T5871] ? tomoyo_socket_sendmsg_permission+0x1e1/0x300 [ 84.261866][ T5871] ? __lock_acquire+0xab9/0xd20 [ 84.266706][ T5871] ? aa_sock_msg_perm+0x94/0x160 [ 84.271637][ T5871] ? bpf_lsm_socket_sendmsg+0x9/0x20 [ 84.276915][ T5871] ? __pfx_packet_sendmsg+0x10/0x10 [ 84.282113][ T5871] __sock_sendmsg+0x21c/0x270 [ 84.286790][ T5871] ____sys_sendmsg+0x505/0x830 [ 84.291556][ T5871] ? __pfx_____sys_sendmsg+0x10/0x10 [ 84.296847][ T5871] ? import_iovec+0x74/0xa0 [ 84.301349][ T5871] ___sys_sendmsg+0x21f/0x2a0 [ 84.306028][ T5871] ? __pfx____sys_sendmsg+0x10/0x10 [ 84.311232][ T5871] ? do_raw_spin_lock+0x121/0x290 [ 84.316290][ T5871] __x64_sys_sendmsg+0x19b/0x260 [ 84.321227][ T5871] ? _raw_spin_unlock_irq+0x2e/0x50 [ 84.326421][ T5871] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 84.331973][ T5871] ? rcu_is_watching+0x15/0xb0 [ 84.336760][ T5871] do_syscall_64+0xfa/0x3b0 [ 84.341274][ T5871] ? lockdep_hardirqs_on+0x9c/0x150 [ 84.346482][ T5871] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 84.352557][ T5871] ? clear_bhb_loop+0x60/0xb0 [ 84.357235][ T5871] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 84.363553][ T5871] RIP: 0033:0x7f666ce1dea9 [ 84.367964][ T5871] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 01 1a 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 [ 84.387820][ T5871] RSP: 002b:00007ffd9d1a1e28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 84.396232][ T5871] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f666ce1dea9 [ 84.404194][ T5871] RDX: 00000000200400c4 RSI: 0000200000000180 RDI: 0000000000000003 [ 84.412155][ T5871] RBP: 00000000000f4240 R08: 0000000000000001 R09: 0000000000000001 [ 84.420245][ T5871] R10: 0000200000000180 R11: 0000000000000246 R12: 00007ffd9d1a1e80 [ 84.428207][ T5871] R13: 00007f666ce6b3fe R14: 0000000000000003 R15: 00007ffd9d1a1e60 [ 84.436224][ T5871] [ 84.439521][ T5871] Kernel Offset: disabled [ 84.443836][ T5871] Rebooting in 86400 seconds..