./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3359864920 <...> Warning: Permanently added '10.128.1.62' (ED25519) to the list of known hosts. execve("./syz-executor3359864920", ["./syz-executor3359864920"], 0x7fff678b2980 /* 10 vars */) = 0 brk(NULL) = 0x555560142000 brk(0x555560142d00) = 0x555560142d00 arch_prctl(ARCH_SET_FS, 0x555560142380) = 0 set_tid_address(0x555560142650) = 5018 set_robust_list(0x555560142660, 24) = 0 rseq(0x555560142ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3359864920", 4096) = 28 getrandom("\x46\x2c\xae\xd9\x20\xea\xca\xe8", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555560142d00 brk(0x555560163d00) = 0x555560163d00 brk(0x555560164000) = 0x555560164000 mprotect(0x7fe372298000, 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, child_tidptr=0x555560142650) = 5019 ./strace-static-x86_64: Process 5019 attached [pid 5019] set_robust_list(0x555560142660, 24) = 0 [pid 5019] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5019] setpgid(0, 0) = 0 [pid 5019] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5019] write(3, "1000", 4) = 4 [pid 5019] close(3) = 0 [pid 5019] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 5019] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=16, insns=0x20000000, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [ 151.512420][ T5019] ===================================================== [ 151.519790][ T5019] BUG: KMSAN: uninit-value in __bpf_strtoull+0x245/0x5b0 [ 151.527161][ T5019] __bpf_strtoull+0x245/0x5b0 [ 151.532013][ T5019] bpf_strtol+0x7c/0x270 [ 151.536578][ T5019] ___bpf_prog_run+0x13fe/0xe0f0 [ 151.541798][ T5019] __bpf_prog_run96+0xb5/0xe0 [ 151.546749][ T5019] bpf_test_run+0x43e/0xc30 [ 151.551499][ T5019] bpf_prog_test_run_xdp+0xeaa/0x1a40 [ 151.557181][ T5019] bpf_prog_test_run+0x6b7/0xad0 [ 151.562403][ T5019] __sys_bpf+0x6aa/0xd90 [ 151.566775][ T5019] __x64_sys_bpf+0xa0/0xe0 [ 151.571298][ T5019] do_syscall_64+0xd5/0x1f0 [ 151.576091][ T5019] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 151.582294][ T5019] [ 151.584713][ T5019] Local variable stack created at: [ 151.589909][ T5019] __bpf_prog_run96+0x45/0xe0 [ 151.594904][ T5019] bpf_test_run+0x43e/0xc30 [ 151.599602][ T5019] [ 151.601983][ T5019] CPU: 1 PID: 5019 Comm: syz-executor335 Not tainted 6.9.0-rc1-syzkaller-00061-g8d025e2092e2 #0 [ 151.612928][ T5019] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 151.623280][ T5019] ===================================================== [ 151.630335][ T5019] Disabling lock debugging due to kernel taint [ 151.636732][ T5019] Kernel panic - not syncing: kmsan.panic set ... [ 151.643288][ T5019] CPU: 1 PID: 5019 Comm: syz-executor335 Tainted: G B 6.9.0-rc1-syzkaller-00061-g8d025e2092e2 #0 [ 151.655374][ T5019] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 151.666089][ T5019] Call Trace: [ 151.669467][ T5019] [ 151.672491][ T5019] dump_stack_lvl+0x216/0x2d0 [ 151.677396][ T5019] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 151.683717][ T5019] dump_stack+0x1e/0x30 [ 151.688153][ T5019] panic+0x4e2/0xcd0 [ 151.692234][ T5019] ? kmsan_get_metadata+0x101/0x1d0 [ 151.697639][ T5019] kmsan_report+0x2d5/0x2e0 [ 151.702394][ T5019] ? kmsan_get_metadata+0x146/0x1d0 [ 151.707799][ T5019] ? __msan_warning+0x95/0x120 [ 151.712814][ T5019] ? __bpf_strtoull+0x245/0x5b0 [ 151.717898][ T5019] ? bpf_strtol+0x7c/0x270 [ 151.722454][ T5019] ? ___bpf_prog_run+0x13fe/0xe0f0 [ 151.727988][ T5019] ? __bpf_prog_run96+0xb5/0xe0 [ 151.733147][ T5019] ? bpf_test_run+0x43e/0xc30 [ 151.738207][ T5019] ? bpf_prog_test_run_xdp+0xeaa/0x1a40 [ 151.743908][ T5019] ? bpf_prog_test_run+0x6b7/0xad0 [ 151.749240][ T5019] ? __sys_bpf+0x6aa/0xd90 [ 151.753874][ T5019] ? __x64_sys_bpf+0xa0/0xe0 [ 151.758752][ T5019] ? do_syscall_64+0xd5/0x1f0 [ 151.763645][ T5019] ? entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 151.770032][ T5019] ? kmsan_get_metadata+0x146/0x1d0 [ 151.775553][ T5019] ? kmsan_internal_set_shadow_origin+0x66/0xe0 [ 151.781980][ T5019] ? kmsan_get_metadata+0x146/0x1d0 [ 151.787555][ T5019] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 151.793648][ T5019] ? _raw_spin_unlock_irqrestore+0x3f/0x60 [ 151.799742][ T5019] ? stack_depot_save_flags+0x66d/0x6e0 [ 151.805756][ T5019] ? kmsan_get_metadata+0x146/0x1d0 [ 151.812095][ T5019] ? kmsan_internal_set_shadow_origin+0x66/0xe0 [ 151.818788][ T5019] ? kmsan_get_metadata+0x146/0x1d0 [ 151.824333][ T5019] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 151.830360][ T5019] __msan_warning+0x95/0x120 [ 151.835377][ T5019] __bpf_strtoull+0x245/0x5b0 [ 151.840290][ T5019] ? bpf_strtol+0x5c/0x270 [ 151.844956][ T5019] ? ___bpf_prog_run+0x13fe/0xe0f0 [ 151.850388][ T5019] bpf_strtol+0x7c/0x270 [ 151.854882][ T5019] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 151.860896][ T5019] ___bpf_prog_run+0x13fe/0xe0f0 [ 151.866055][ T5019] ? kmsan_get_metadata+0x146/0x1d0 [ 151.871386][ T5019] __bpf_prog_run96+0xb5/0xe0 [ 151.876299][ T5019] ? __pfx___bpf_prog_run96+0x10/0x10 [ 151.881885][ T5019] bpf_test_run+0x43e/0xc30 [ 151.886539][ T5019] ? bpf_test_run+0x388/0xc30 [ 151.891445][ T5019] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 151.897447][ T5019] bpf_prog_test_run_xdp+0xeaa/0x1a40 [ 151.903070][ T5019] ? _raw_spin_unlock_irqrestore+0x3f/0x60 [ 151.909112][ T5019] ? kmsan_get_metadata+0x146/0x1d0 [ 151.914475][ T5019] ? __pfx_bpf_prog_test_run_xdp+0x10/0x10 [ 151.920499][ T5019] bpf_prog_test_run+0x6b7/0xad0 [ 151.925578][ T5019] __sys_bpf+0x6aa/0xd90 [ 151.930031][ T5019] __x64_sys_bpf+0xa0/0xe0 [ 151.934657][ T5019] do_syscall_64+0xd5/0x1f0 [ 151.939320][ T5019] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 151.945808][ T5019] RIP: 0033:0x7fe372224c39 [ 151.950334][ T5019] 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 [ 151.970179][ T5019] RSP: 002b:00007fffbfc35b88 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 151.979037][ T5019] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe372224c39 [ 151.987573][ T5019] RDX: 0000000000000050 RSI: 0000000020000640 RDI: 000000000000000a [ 151.995695][ T5019] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006 [ 152.003781][ T5019] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 152.011925][ T5019] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001 [ 152.020237][ T5019] [ 152.023784][ T5019] Kernel Offset: disabled [ 152.028212][ T5019] Rebooting in 86400 seconds..