./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3774971707
<...>
Warning: Permanently added '10.128.1.135' (ED25519) to the list of known hosts.
execve("./syz-executor3774971707", ["./syz-executor3774971707"], 0x7fff593a1710 /* 10 vars */) = 0
brk(NULL) = 0x555557406000
brk(0x555557406d00) = 0x555557406d00
arch_prctl(ARCH_SET_FS, 0x555557406380) = 0
set_tid_address(0x555557406650) = 5017
set_robust_list(0x555557406660, 24) = 0
rseq(0x555557406ca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor3774971707", 4096) = 28
getrandom("\x77\x83\x6a\xb9\x3a\x3f\x49\x30", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x555557406d00
brk(0x555557427d00) = 0x555557427d00
brk(0x555557428000) = 0x555557428000
mprotect(0x7f65bbe66000, 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=0x555557406650) = 5018
./strace-static-x86_64: Process 5018 attached
[pid 5018] set_robust_list(0x555557406660, 24) = 0
[pid 5018] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5018] setpgid(0, 0) = 0
[pid 5018] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5018] write(3, "1000", 4) = 4
[pid 5018] close(3) = 0
[pid 5018] 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=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3
[pid 5018] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=3, key=0x20000100, value=0x20000140, flags=BPF_ANY}, 32) = 0
[pid 5018] bpf(BPF_MAP_FREEZE, {map_fd=3}, 4) = 0
[pid 5018] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_FLOW_DISSECTOR, insn_cnt=16, insns=0x20000040, 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
[ 147.580292][ T5018] =====================================================
[ 147.588154][ T5018] BUG: KMSAN: uninit-value in bpf_bprintf_prepare+0x1ec4/0x23b0
[ 147.596410][ T5018] bpf_bprintf_prepare+0x1ec4/0x23b0
[ 147.601997][ T5018] bpf_snprintf+0x141/0x360
[ 147.606706][ T5018] ___bpf_prog_run+0x2180/0xdb80
[ 147.611897][ T5018] __bpf_prog_run288+0xb5/0xe0
[ 147.616815][ T5018] bpf_flow_dissect+0x127/0x470
[ 147.621938][ T5018] bpf_prog_test_run_flow_dissector+0x6f4/0xa20
[ 147.628419][ T5018] bpf_prog_test_run+0x6af/0xac0
[ 147.633634][ T5018] __sys_bpf+0x649/0xd60
[ 147.638056][ T5018] __x64_sys_bpf+0xa0/0xe0
[ 147.642783][ T5018] do_syscall_64+0xcf/0x1e0
[ 147.647451][ T5018] entry_SYSCALL_64_after_hwframe+0x63/0x6b
[ 147.653746][ T5018]
[ 147.656162][ T5018] Local variable stack created at:
[ 147.661357][ T5018] __bpf_prog_run288+0x45/0xe0
[ 147.666318][ T5018] bpf_flow_dissect+0x127/0x470
[ 147.671349][ T5018]
[ 147.673853][ T5018] CPU: 0 PID: 5018 Comm: syz-executor377 Not tainted 6.8.0-rc6-syzkaller-00250-g04b8076df253 #0
[ 147.684536][ T5018] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
[ 147.694817][ T5018] =====================================================
[ 147.701961][ T5018] Disabling lock debugging due to kernel taint
[ 147.708228][ T5018] Kernel panic - not syncing: kmsan.panic set ...
[ 147.714769][ T5018] CPU: 0 PID: 5018 Comm: syz-executor377 Tainted: G B 6.8.0-rc6-syzkaller-00250-g04b8076df253 #0
[ 147.726837][ T5018] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
[ 147.737009][ T5018] Call Trace:
[ 147.740372][ T5018] <TASK>
[ 147.743360][ T5018] dump_stack_lvl+0x1bf/0x240
[ 147.748178][ T5018] dump_stack+0x1e/0x20
[ 147.752521][ T5018] panic+0x4de/0xc90
[ 147.756621][ T5018] kmsan_report+0x2d0/0x2d0
[ 147.761246][ T5018] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0
[ 147.767211][ T5018] ? __msan_warning+0x96/0x120
[ 147.772161][ T5018] ? bpf_bprintf_prepare+0x1ec4/0x23b0
[ 147.777835][ T5018] ? bpf_snprintf+0x141/0x360
[ 147.782647][ T5018] ? ___bpf_prog_run+0x2180/0xdb80
[ 147.787906][ T5018] ? __bpf_prog_run288+0xb5/0xe0
[ 147.793041][ T5018] ? bpf_flow_dissect+0x127/0x470
[ 147.798225][ T5018] ? bpf_prog_test_run_flow_dissector+0x6f4/0xa20
[ 147.804782][ T5018] ? bpf_prog_test_run+0x6af/0xac0
[ 147.810041][ T5018] ? __sys_bpf+0x649/0xd60
[ 147.814651][ T5018] ? __x64_sys_bpf+0xa0/0xe0
[ 147.819433][ T5018] ? do_syscall_64+0xcf/0x1e0
[ 147.824292][ T5018] ? entry_SYSCALL_64_after_hwframe+0x63/0x6b
[ 147.830601][ T5018] ? kmsan_get_metadata+0x146/0x1c0
[ 147.836020][ T5018] ? kmsan_internal_set_shadow_origin+0x66/0xe0
[ 147.842523][ T5018] ? kmsan_get_metadata+0x146/0x1c0
[ 147.847894][ T5018] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0
[ 147.853850][ T5018] ? _raw_spin_unlock_irqrestore+0x3f/0x60
[ 147.859915][ T5018] ? kmsan_get_metadata+0x146/0x1c0
[ 147.865391][ T5018] ? kmsan_get_metadata+0x146/0x1c0
[ 147.870743][ T5018] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0
[ 147.876681][ T5018] ? kmsan_get_metadata+0x146/0x1c0
[ 147.882049][ T5018] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0
[ 147.888008][ T5018] __msan_warning+0x96/0x120
[ 147.893182][ T5018] bpf_bprintf_prepare+0x1ec4/0x23b0
[ 147.898717][ T5018] ? __msan_memcpy+0x108/0x1c0
[ 147.903730][ T5018] bpf_snprintf+0x141/0x360
[ 147.908467][ T5018] ___bpf_prog_run+0x2180/0xdb80
[ 147.913563][ T5018] ? stack_depot_save_flags+0x665/0x6e0
[ 147.919273][ T5018] ? kmsan_get_metadata+0x146/0x1c0
[ 147.924678][ T5018] __bpf_prog_run288+0xb5/0xe0
[ 147.929555][ T5018] ? zlib_tr_flush_block+0x26af/0x3cb0
[ 147.935183][ T5018] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0
[ 147.941203][ T5018] ? kmsan_get_metadata+0x146/0x1c0
[ 147.946585][ T5018] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0
[ 147.952575][ T5018] ? kmsan_get_metadata+0x146/0x1c0
[ 147.957975][ T5018] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0
[ 147.963978][ T5018] ? zlib_tr_flush_block+0x26af/0x3cb0
[ 147.969607][ T5018] ? __bpf_prog_run256+0xe0/0xe0
[ 147.974711][ T5018] ? __bpf_prog_run256+0xe0/0xe0
[ 147.979757][ T5018] bpf_flow_dissect+0x127/0x470
[ 147.984781][ T5018] bpf_prog_test_run_flow_dissector+0x6f4/0xa20
[ 147.991317][ T5018] ? xdp_convert_buff_to_md+0x2a0/0x2a0
[ 147.997076][ T5018] bpf_prog_test_run+0x6af/0xac0
[ 148.002155][ T5018] __sys_bpf+0x649/0xd60
[ 148.006534][ T5018] __x64_sys_bpf+0xa0/0xe0
[ 148.011063][ T5018] do_syscall_64+0xcf/0x1e0
[ 148.015679][ T5018] entry_SYSCALL_64_after_hwframe+0x63/0x6b
[ 148.021732][ T5018] RIP: 0033:0x7f65bbdf2d39
[ 148.026296][ T5018] 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
[ 148.046074][ T5018] RSP: 002b:00007ffced8ac6a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
[ 148.054682][ T5018] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f65bbdf2d39
[ 148.062788][ T5018] RDX: 0000000000000050 RSI: 0000000020000640 RDI: 000000000000000a
[ 148.070868][ T5018] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[ 148.079000][ T5018] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 148.087094][ T5018] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[ 148.095195][ T5018] </TASK>
[ 148.098601][ T5018] Kernel Offset: disabled
[ 148.102983][ T5018] Rebooting in 86400 seconds..