ci2-android-6-1/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci2-android-6-1/syz-executor3496012539 <...> Warning: Permanently added '10.128.1.26' (ED25519) to the list of known hosts. execve("ci2-android-6-1/syz-executor3496012539", ["ci2-android-6-1/syz-executor3496012539"], 0x7ffd369170b0 /* 10 vars */) = 0 brk(NULL) = 0x5555948e8000 brk(0x5555948e8d40) = 0x5555948e8d40 arch_prctl(ARCH_SET_FS, 0x5555948e83c0) = 0 set_tid_address(0x5555948e8690) = 306 set_robust_list(0x5555948e86a0, 24) = 0 rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 32, 0, 0x53053053) = -1 ENOSYS (Function not implemented) prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlinkat(AT_FDCWD, "/proc/self/exe", "/root/ci2-android-6-1/syz-executor3496012539", 4096) = 44 getrandom("\xa9\x85\xd6\x47\xd2\x02\x54\x1b", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555948e8d40 brk(0x555594909d40) = 0x555594909d40 brk(0x55559490a000) = 0x55559490a000 mprotect(0x7fafad7de000, 20480, 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 openat(AT_FDCWD, "/dev/net/tun", O_RDWR) = 4 ioctl(4, TUNSETIFF, 0x200000000040) = 0 ioctl(3, SIOCGIFINDEX, {ifr_name="syzkaller0", ifr_ifindex=15}) = 0 socket(AF_INET, SOCK_DGRAM, IPPROTO_IP) = 5 ioctl(5, SIOCSIFFLAGS, {ifr_name="syzkaller0", ifr_flags=IFF_UP}) = 0 sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base=[{nlmsg_len=48, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x400, nlmsg_seq=8192, nlmsg_pid=0}, "\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\xff\xff\xf1\xff\xff\xff\x00\x00\x00\x00\x0c\x00\x01\x00\x69\x6e\x67\x72\x65\x73\x73\x00"], iov_len=48}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 48 sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base=[{nlmsg_len=92, nlmsg_type=0x2c /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x400, nlmsg_seq=0, nlmsg_pid=0}, "\x00\x00\x00\x00\x0f\x00\x00\x00\x01\x00\x09\x00\xff\xff\xff\xff\x00\x03\x01\x00\x0a\x00\x01\x00\x62\x61\x73\x69\x63\x00\x00\x00\x2c\x00\x02\x00\x28\x00\x02\x80\x08\x00\x01\x00\x01\x00\x00\x00\x1c\x00\x02\x80\x18\x00\x01\x00\x00\x00\x04\x00\x00\x00\x00\x00\x0c\x00\x01\x00\x02\x10\xfd\x00\x04\x10\x00\x00"], iov_len=92}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 92 [ 23.988019][ T28] audit: type=1400 audit(1791698523.997:64): avc: denied { execmem } for pid=306 comm="syz-executor349" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 24.008897][ T306] ================================================================================ [ 24.016096][ T28] audit: type=1400 audit(1791698524.007:65): avc: denied { module_request } for pid=304 comm="strace-static-x" kmod="net-pf-16-proto-4-type-16" scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:kernel_t tclass=system permissive=1 [ 24.019248][ T306] UBSAN: shift-out-of-bounds in net/sched/em_meta.c:766:14 [ 24.019275][ T306] shift exponent 253 is too large for 64-bit type 'unsigned long' [ 24.046813][ T28] audit: type=1400 audit(1791698524.057:66): avc: denied { read } for pid=142 comm="dhcpcd" scontext=system_u:system_r:dhcpc_t tcontext=system_u:system_r:dhcpc_t tclass=netlink_kobject_uevent_socket permissive=1 [ 24.049535][ T306] CPU: 1 PID: 306 Comm: syz-executor349 Not tainted syzkaller #0 [ 24.049553][ T306] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 24.049570][ T306] Call Trace: [ 24.049575][ T306] [ 24.049581][ T306] __dump_stack+0x21/0x24 [ 24.106318][ T306] dump_stack_lvl+0x110/0x170 [ 24.111004][ T306] ? __cfi_dump_stack_lvl+0x8/0x8 [ 24.116040][ T306] ? __cfi_netdev_run_todo+0x10/0x10 [ 24.121328][ T306] dump_stack+0x15/0x24 [ 24.125487][ T306] ubsan_epilogue+0xe/0x40 [ 24.129899][ T306] __ubsan_handle_shift_out_of_bounds+0x364/0x3f0 [ 24.136321][ T306] ? rtnl_unlock+0xe/0x10 [ 24.140658][ T306] meta_int_apply_extras+0x13d/0x150 [ 24.145943][ T306] meta_get+0x215/0x410 [ 24.150097][ T306] ? meta_int_dump+0x1f0/0x1f0 [ 24.154859][ T306] em_meta_match+0xec/0x300 [ 24.159366][ T306] ? __cfi_em_meta_match+0x10/0x10 [ 24.164483][ T306] ? _raw_spin_lock_irqsave+0xc2/0x130 [ 24.169950][ T306] __tcf_em_tree_match+0x1dc/0x7b0 [ 24.175064][ T306] ? __cfi___tcf_em_tree_match+0x10/0x10 [ 24.180700][ T306] ? alloc_skb_with_frags+0xa8/0x620 [ 24.185965][ T306] basic_classify+0xd9/0x240 [ 24.190532][ T306] tcf_classify+0x18c/0x470 [ 24.195011][ T306] __netif_receive_skb_core+0x1ba2/0x3580 [ 24.200706][ T306] ? qdisc_run+0x240/0x240 [ 24.205095][ T306] ? __kasan_check_write+0x14/0x20 [ 24.210180][ T306] ? __build_skb_around+0x24c/0x470 [ 24.215376][ T306] ? __alloc_skb+0x2d0/0x4a0 [ 24.219944][ T306] ? tun_rx_batched+0x16d/0x7b0 [ 24.224771][ T306] __netif_receive_skb+0x72/0x2a0 [ 24.229773][ T306] ? tun_rx_batched+0x16d/0x7b0 [ 24.234599][ T306] netif_receive_skb+0x98/0x3e0 [ 24.239432][ T306] ? __cfi_netif_receive_skb+0x10/0x10 [ 24.244865][ T306] ? __cfi__copy_from_iter+0x10/0x10 [ 24.250125][ T306] ? tun_rx_batched+0x16d/0x7b0 [ 24.254953][ T306] tun_rx_batched+0x1cb/0x7b0 [ 24.259606][ T306] ? __check_object_size+0x45a/0x600 [ 24.264884][ T306] ? pskb_may_pull+0x100/0x100 [ 24.269626][ T306] ? tun_get_user+0x1fc0/0x32f0 [ 24.274454][ T306] tun_get_user+0x2456/0x32f0 [ 24.279107][ T306] ? xfd_validate_state+0x70/0x150 [ 24.284195][ T306] ? save_fpregs_to_fpstate+0x199/0x220 [ 24.289715][ T306] ? tun_do_read+0x1d70/0x1d70 [ 24.294451][ T306] ? __kasan_check_write+0x14/0x20 [ 24.299538][ T306] ? ref_tracker_alloc+0x319/0x4a0 [ 24.304640][ T306] ? __cfi_ref_tracker_alloc+0x10/0x10 [ 24.310074][ T306] ? avc_policy_seqno+0x1b/0x70 [ 24.314900][ T306] ? selinux_file_permission+0x2a5/0x510 [ 24.320507][ T306] tun_chr_write_iter+0x1f9/0x300 [ 24.325511][ T306] vfs_write+0x5ef/0xd00 [ 24.329730][ T306] ? __cfi_vfs_write+0x10/0x10 [ 24.334471][ T306] ? memset+0x35/0x40 [ 24.338451][ T306] ? __kasan_check_read+0x11/0x20 [ 24.343448][ T306] ? __fdget_pos+0x1f2/0x380 [ 24.348011][ T306] ksys_write+0x14a/0x260 [ 24.352313][ T306] ? __cfi_ksys_write+0x10/0x10 [ 24.357138][ T306] ? fpregs_restore_userregs+0x128/0x260 [ 24.362746][ T306] __x64_sys_write+0x7b/0x90 [ 24.367310][ T306] x64_sys_call+0x27b/0x9a0 [ 24.371790][ T306] do_syscall_64+0x4c/0xa0 [ 24.376197][ T306] ? clear_bhb_loop+0x30/0x80 [ 24.380852][ T306] ? clear_bhb_loop+0x30/0x80 [ 24.385522][ T306] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 24.391390][ T306] RIP: 0033:0x7fafad74e0b9 [ 24.395786][ T306] Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 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 d8 ff ff ff f7 d8 64 89 01 48 [ 24.415377][ T306] RSP: 002b:00007ffd62133eb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 24.423777][ T306] RAX: ffffffffffffffda RBX: 00007ffd62133fe8 RCX: 00007fafad74e0b9 [ 24.431733][ T306] RDX: 0000000000000020 RSI: 0000200000000500 RDI: 0000000000000004 write(4, "\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", 32) = 32 exit_group(0) = ? [ 24.439765][ T306] RBP: 0000000000000001 R08: 00007ffd62133fe8 R09: 00007ffd62133fe8 [ 24.447712][ T306] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd62133fd8 [ 24.455662][ T306] R13: 0000000000000002 R14: 00007fafad7deca0 R15: 0000000000000002 [ 24.463617][ T306] [ 24.466651][ T306] ================================================================================ +++ exited with 0 +++