./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4018350049 <...> Warning: Permanently added '10.128.0.201' (ED25519) to the list of known hosts. execve("./syz-executor4018350049", ["./syz-executor4018350049"], 0x7ffc5e8593d0 /* 10 vars */) = 0 brk(NULL) = 0x555586eaa000 brk(0x555586eaad00) = 0x555586eaad00 arch_prctl(ARCH_SET_FS, 0x555586eaa380) = 0 set_tid_address(0x555586eaa650) = 5088 set_robust_list(0x555586eaa660, 24) = 0 rseq(0x555586eaaca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor4018350049", 4096) = 28 getrandom("\x21\x64\x53\x5e\xd4\x33\x8c\x97", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555586eaad00 brk(0x555586ecbd00) = 0x555586ecbd00 brk(0x555586ecc000) = 0x555586ecc000 mprotect(0x7f7fb2a1b000, 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 5089 attached , child_tidptr=0x555586eaa650) = 5089 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5089] set_robust_list(0x555586eaa660, 24) = 0 ./strace-static-x86_64: Process 5090 attached [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5088] <... clone resumed>, child_tidptr=0x555586eaa650) = 5090 [pid 5090] set_robust_list(0x555586eaa660, 24./strace-static-x86_64: Process 5091 attached [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5090] <... set_robust_list resumed>) = 0 [pid 5091] set_robust_list(0x555586eaa660, 24 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5089] <... clone resumed>, child_tidptr=0x555586eaa650) = 5091 [pid 5091] <... set_robust_list resumed>) = 0 [pid 5091] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 5093 attached [pid 5088] <... clone resumed>, child_tidptr=0x555586eaa650) = 5093 [pid 5091] setpgid(0, 0 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5093] set_robust_list(0x555586eaa660, 24 [pid 5091] <... setpgid resumed>) = 0 [pid 5091] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5093] <... set_robust_list resumed>) = 0 [pid 5091] <... openat resumed>) = 3 [pid 5090] <... clone resumed>, child_tidptr=0x555586eaa650) = 5092 [pid 5091] write(3, "1000", 4./strace-static-x86_64: Process 5094 attached ./strace-static-x86_64: Process 5092 attached [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5088] <... clone resumed>, child_tidptr=0x555586eaa650) = 5094 [pid 5092] set_robust_list(0x555586eaa660, 24 [pid 5091] <... write resumed>) = 4 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5092] <... set_robust_list resumed>) = 0 [pid 5091] close(3) = 0 ./strace-static-x86_64: Process 5095 attached [pid 5094] set_robust_list(0x555586eaa660, 24 [pid 5092] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5091] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000./strace-static-x86_64: Process 5096 attached [pid 5095] set_robust_list(0x555586eaa660, 24 [pid 5094] <... set_robust_list resumed>) = 0 [pid 5088] <... clone resumed>, child_tidptr=0x555586eaa650) = 5096 [pid 5096] set_robust_list(0x555586eaa660, 24 [pid 5092] <... prctl resumed>) = 0 [pid 5091] <... openat resumed>) = 3 [pid 5095] <... set_robust_list resumed>) = 0 [pid 5094] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5093] <... clone resumed>, child_tidptr=0x555586eaa650) = 5095 [pid 5096] <... set_robust_list resumed>) = 0 [pid 5092] setpgid(0, 0 [pid 5091] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5095] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5096] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5095] <... prctl resumed>) = 0 [pid 5092] <... setpgid resumed>) = 0 [pid 5091] <... socketpair resumed>[4, 5]) = 0 ./strace-static-x86_64: Process 5097 attached [pid 5095] setpgid(0, 0 [pid 5092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5091] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5097] set_robust_list(0x555586eaa660, 24 [pid 5095] <... setpgid resumed>) = 0 [pid 5094] <... clone resumed>, child_tidptr=0x555586eaa650) = 5097 [pid 5097] <... set_robust_list resumed>) = 0 [pid 5095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5097] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5098 attached [pid 5095] <... openat resumed>) = 3 [pid 5092] <... openat resumed>) = 3 [pid 5091] <... socketpair resumed>[6, 7]) = 0 [pid 5096] <... clone resumed>, child_tidptr=0x555586eaa650) = 5098 [pid 5092] write(3, "1000", 4 [pid 5091] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5098] set_robust_list(0x555586eaa660, 24 [pid 5097] <... prctl resumed>) = 0 [pid 5095] write(3, "1000", 4 [pid 5092] <... write resumed>) = 4 [pid 5098] <... set_robust_list resumed>) = 0 [pid 5097] setpgid(0, 0 [pid 5095] <... write resumed>) = 4 [pid 5092] close(3 [pid 5091] <... bpf resumed>) = 8 [pid 5098] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5097] <... setpgid resumed>) = 0 [pid 5095] close(3 [pid 5092] <... close resumed>) = 0 [pid 5091] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5098] <... prctl resumed>) = 0 [pid 5097] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5095] <... close resumed>) = 0 [pid 5092] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5098] setpgid(0, 0 [pid 5097] <... openat resumed>) = 3 [pid 5095] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5092] <... openat resumed>) = 3 [pid 5091] <... bpf resumed>) = 9 [pid 5098] <... setpgid resumed>) = 0 [pid 5097] write(3, "1000", 4 [pid 5095] <... openat resumed>) = 3 [pid 5092] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5095] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5091] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5097] <... write resumed>) = 4 [pid 5095] <... socketpair resumed>[4, 5]) = 0 [pid 5092] <... socketpair resumed>[4, 5]) = 0 [pid 5098] <... openat resumed>) = 3 [pid 5097] close(3) = 0 [pid 5097] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5092] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5098] write(3, "1000", 4 [pid 5097] <... openat resumed>) = 3 [pid 5092] <... socketpair resumed>[6, 7]) = 0 [pid 5091] <... bpf resumed>) = 10 [pid 5098] <... write resumed>) = 4 [pid 5097] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5095] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5098] close(3 [pid 5097] <... socketpair resumed>[4, 5]) = 0 [pid 5092] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5098] <... close resumed>) = 0 [pid 5098] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5097] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5095] <... socketpair resumed>[6, 7]) = 0 [pid 5092] <... bpf resumed>) = 8 [pid 5091] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5098] <... openat resumed>) = 3 [pid 5097] <... socketpair resumed>[6, 7]) = 0 [pid 5095] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5092] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5098] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5097] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5095] <... bpf resumed>) = 8 [pid 5092] <... bpf resumed>) = 9 [pid 5091] <... bpf resumed>) = 11 [pid 5098] <... socketpair resumed>[4, 5]) = 0 [pid 5097] <... bpf resumed>) = 8 [pid 5098] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5097] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5095] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5092] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5098] <... socketpair resumed>[6, 7]) = 0 [pid 5097] <... bpf resumed>) = 9 [pid 5095] <... bpf resumed>) = 9 [pid 5092] <... bpf resumed>) = 10 [pid 5091] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5098] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5097] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5095] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5098] <... bpf resumed>) = 8 [pid 5097] <... bpf resumed>) = 10 [pid 5092] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5091] <... bpf resumed>) = 12 [pid 5098] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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) = 9 [pid 5097] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5092] <... bpf resumed>) = 11 [pid 5098] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5097] <... bpf resumed>) = 11 [pid 5095] <... bpf resumed>) = 10 [pid 5092] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5091] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5098] <... bpf resumed>) = 10 [pid 5097] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5095] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5092] <... bpf resumed>) = 12 [pid 5097] <... bpf resumed>) = 12 [pid 5092] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5091] <... bpf resumed>) = 13 [pid 5098] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5097] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5095] <... bpf resumed>) = 11 [pid 5092] <... bpf resumed>) = 13 [pid 5098] <... bpf resumed>) = 11 [pid 5097] <... bpf resumed>) = 13 [pid 5095] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5091] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5098] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5097] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5095] <... bpf resumed>) = 12 [pid 5092] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5098] <... bpf resumed>) = 12 [pid 5097] <... bpf resumed>) = 14 [pid 5095] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5092] <... bpf resumed>) = 14 [pid 5091] <... bpf resumed>) = 14 [pid 5098] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5097] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5098] <... bpf resumed>) = 13 [pid 5097] <... socketpair resumed>[15, 16]) = 0 [pid 5095] <... bpf resumed>) = 13 [pid 5092] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5091] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5098] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5095] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5098] <... bpf resumed>) = 14 [pid 5097] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5092] <... socketpair resumed>[15, 16]) = 0 [pid 5091] <... socketpair resumed>[15, 16]) = 0 [pid 5097] <... openat resumed>) = 17 [pid 5095] <... bpf resumed>) = 14 [pid 5091] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5095] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5092] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000) = -1 EEXIST (File exists) [pid 5092] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5098] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5092] <... bpf resumed> => 1}, 8) = 0 [pid 5098] <... socketpair resumed>[15, 16]) = 0 [pid 5097] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5095] <... socketpair resumed>[15, 16]) = 0 [pid 5092] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=1}, 4 [pid 5091] <... openat resumed>) = -1 EEXIST (File exists) [pid 5098] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5097] <... bpf resumed> => 1}, 8) = 0 [pid 5095] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5092] <... bpf resumed>) = 17 [pid 5098] <... openat resumed>) = -1 EEXIST (File exists) [pid 5097] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=1}, 4 [pid 5095] <... openat resumed>) = -1 EEXIST (File exists) [pid 5092] perf_event_open( [pid 5091] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5098] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5097] <... bpf resumed>) = 18 [pid 5095] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5091] <... bpf resumed> => 1}, 8) = 0 [pid 5098] <... bpf resumed> => 1}, 8) = 0 [pid 5097] perf_event_open( [pid 5095] <... bpf resumed> => 1}, 8) = 0 [pid 5091] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=1}, 4 [pid 5098] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=1}, 4 [pid 5095] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=1}, 4 [pid 5092] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5091] <... bpf resumed>) = 17 [pid 5098] <... bpf resumed>) = 17 [pid 5097] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 19 [pid 5095] <... bpf resumed>) = 17 [pid 5091] perf_event_open( [pid 5098] perf_event_open( [pid 5097] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5092] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5091] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5098] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5097] <... socketpair resumed>[20, 21]) = 0 [pid 5095] perf_event_open( [pid 5092] <... socketpair resumed>[19, 20]) = 0 [pid 5098] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5097] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5091] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5098] <... socketpair resumed>[19, 20]) = 0 [pid 5095] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5092] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5098] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5097] <... bpf resumed>) = 22 [pid 5095] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5092] <... bpf resumed>) = 21 [pid 5091] <... socketpair resumed>[19, 20]) = 0 [pid 5098] <... bpf resumed>) = 21 [pid 5095] <... socketpair resumed>[19, 20]) = 0 [pid 5091] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5097] perf_event_open( [pid 5095] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5092] perf_event_open( [pid 5098] perf_event_open( [pid 5097] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 23 [pid 5092] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5091] <... bpf resumed>) = 21 [pid 5098] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5098] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5095] <... bpf resumed>) = 21 [pid 5092] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5091] perf_event_open( [pid 5098] <... bpf resumed>) = 23 [pid 5097] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5095] perf_event_open( [pid 5092] <... bpf resumed>) = 23 [pid 5098] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5097] <... bpf resumed>) = 24 [pid 5092] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5091] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5095] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5091] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5098] <... openat resumed>) = 24 [pid 5097] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5095] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5092] <... openat resumed>) = 24 [pid 5098] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5097] <... openat resumed>) = 25 [pid 5091] <... bpf resumed>) = 23 [pid 5095] <... bpf resumed>) = 23 [pid 5091] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5098] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5097] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5098] perf_event_open( [pid 5097] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5092] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5091] <... openat resumed>) = 24 [pid 5098] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5097] perf_event_open( [pid 5095] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5092] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5097] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 26 [pid 5092] perf_event_open( [pid 5091] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5098] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5097] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5095] <... openat resumed>) = 24 [pid 5092] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5091] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5098] <... bpf resumed>) = 26 [pid 5097] <... bpf resumed>) = 27 [pid 5091] perf_event_open( [pid 5092] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5098] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5097] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5095] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5092] <... bpf resumed>) = 26 [pid 5091] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5097] <... bpf resumed>) = 28 [pid 5095] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5091] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5098] <... bpf resumed>) = 27 [pid 5097] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5095] perf_event_open( [pid 5092] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5097] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5092] <... bpf resumed>) = 27 [pid 5091] <... bpf resumed>) = 26 [pid 5098] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5097] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5095] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5097] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1038 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5098] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5097] <... bpf resumed>) = 29 [pid 5095] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5092] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5091] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5098] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5092] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5098] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5097] close(29 [pid 5092] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5098] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1038 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5097] <... close resumed>) = 0 [pid 5092] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5098] <... bpf resumed>) = 28 [pid 5097] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5095] <... bpf resumed>) = 26 [pid 5092] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1263 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5091] <... bpf resumed>) = 27 [pid 5095] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5097] <... socketpair resumed>[29, 30]) = 0 [pid 5092] <... bpf resumed>) = 28 [pid 5091] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5095] <... bpf resumed>) = 27 [pid 5091] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5097] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5091] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5098] close(28 [pid 5097] <... bpf resumed>) = 31 [pid 5095] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5092] close(28 [pid 5098] <... close resumed>) = 0 [pid 5097] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=31, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5095] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5092] <... close resumed>) = 0 [pid 5091] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5098] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5097] <... bpf resumed>) = 0 [pid 5095] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5092] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5091] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1295 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5098] <... socketpair resumed>[28, 29]) = 0 [pid 5097] exit_group(0 [pid 5095] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5092] <... socketpair resumed>[28, 29]) = 0 [pid 5098] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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) = 30 [pid 5097] <... exit_group resumed>) = ? [pid 5095] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 2968 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5092] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5091] <... bpf resumed>) = 28 [pid 5098] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5092] <... bpf resumed>) = 30 [pid 5095] <... bpf resumed>) = 28 [pid 5092] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32) = 0 [pid 5098] <... bpf resumed>) = 0 [pid 5092] exit_group(0 [pid 5091] close(28 [pid 5098] exit_group(0 [pid 5095] close(28 [pid 5098] <... exit_group resumed>) = ? [pid 5092] <... exit_group resumed>) = ? [pid 5097] +++ exited with 0 +++ [pid 5095] <... close resumed>) = 0 [pid 5091] <... close resumed>) = 0 [pid 5092] +++ exited with 0 +++ [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5092, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5090] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5099 attached [pid 5095] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5094] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5097, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5091] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5099] set_robust_list(0x555586eaa660, 24 [pid 5095] <... socketpair resumed>[28, 29]) = 0 [pid 5091] <... socketpair resumed>[28, 29]) = 0 [pid 5090] <... clone resumed>, child_tidptr=0x555586eaa650) = 5099 [pid 5099] <... set_robust_list resumed>) = 0 [pid 5099] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5095] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5094] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5091] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5099] <... prctl resumed>) = 0 [pid 5095] <... bpf resumed>) = 30 [pid 5099] setpgid(0, 0 [pid 5091] <... bpf resumed>) = 30 [pid 5099] <... setpgid resumed>) = 0 [pid 5095] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [ 72.388255][ T62] [ 72.390651][ T62] ====================================================== [ 72.397700][ T62] WARNING: possible circular locking dependency detected [ 72.404750][ T62] 6.9.0-rc5-syzkaller-01479-ge612b5c1d3ee #0 Not tainted [ 72.411786][ T62] ------------------------------------------------------ [ 72.418826][ T62] kworker/u8:4/62 is trying to acquire lock: [ 72.424814][ T62] ffff88802a29f220 (&stab->lock){+...}-{2:2}, at: sock_map_delete_elem+0x175/0x250 [ 72.434164][ T62] [pid 5099] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5100 attached ) = 3 [pid 5095] <... bpf resumed>) = 0 [pid 5094] <... clone resumed>, child_tidptr=0x555586eaa650) = 5100 [pid 5091] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5100] set_robust_list(0x555586eaa660, 24 [pid 5099] write(3, "1000", 4 [pid 5095] exit_group(0 [pid 5091] <... bpf resumed>) = 0 [pid 5100] <... set_robust_list resumed>) = 0 [pid 5099] <... write resumed>) = 4 [pid 5095] <... exit_group resumed>) = ? [pid 5091] exit_group(0 [pid 5100] prctl(PR_SET_PDEATHSIG, SIGKILL [ 72.434164][ T62] but task is already holding lock: [ 72.441549][ T62] ffff88807791e2b0 (&psock->link_lock){+...}-{2:2}, at: sock_map_unref+0xcc/0x5e0 [ 72.450793][ T62] [ 72.450793][ T62] which lock already depends on the new lock. [ 72.450793][ T62] [ 72.461196][ T62] [ 72.461196][ T62] the existing dependency chain (in reverse order) is: [ 72.470203][ T62] [ 72.470203][ T62] -> #1 (&psock->link_lock){+...}-{2:2}: [ 72.478032][ T62] lock_acquire+0x1ed/0x550 [ 72.483062][ T62] _raw_spin_lock_bh+0x35/0x50 [ 72.488372][ T62] sock_map_update_common+0x31c/0x5b0 [ 72.494267][ T62] sock_map_update_elem_sys+0x55f/0x910 [ 72.500335][ T62] map_update_elem+0x53a/0x6f0 [ 72.505627][ T62] __sys_bpf+0x76f/0x810 [ 72.510398][ T62] __x64_sys_bpf+0x7c/0x90 [ 72.515342][ T62] do_syscall_64+0xf5/0x240 [ 72.520372][ T62] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 72.526788][ T62] [ 72.526788][ T62] -> #0 (&stab->lock){+...}-{2:2}: [ 72.534105][ T62] validate_chain+0x18cb/0x58e0 [ 72.539489][ T62] __lock_acquire+0x1346/0x1fd0 [ 72.544858][ T62] lock_acquire+0x1ed/0x550 [ 72.549882][ T62] _raw_spin_lock_bh+0x35/0x50 [ 72.555175][ T62] sock_map_delete_elem+0x175/0x250 [ 72.560911][ T62] bpf_prog_b89bc06253186eb1+0x56/0x5a [ 72.566893][ T62] bpf_trace_run2+0x2ec/0x540 [ 72.572095][ T62] __traceiter_kfree+0x2b/0x50 [ 72.577410][ T62] kfree+0x2af/0x3a0 [ 72.581830][ T62] sock_map_unref+0x3ac/0x5e0 [ 72.587138][ T62] sock_map_free+0x1e7/0x3e0 [ 72.592257][ T62] bpf_map_free_deferred+0xe6/0x110 [ 72.597982][ T62] process_scheduled_works+0xa10/0x17c0 [ 72.604048][ T62] worker_thread+0x86d/0xd70 [ 72.609160][ T62] kthread+0x2f0/0x390 [ 72.613759][ T62] ret_from_fork+0x4b/0x80 [ 72.618707][ T62] ret_from_fork_asm+0x1a/0x30 [ 72.624006][ T62] [ 72.624006][ T62] other info that might help us debug this: [ 72.624006][ T62] [ 72.634234][ T62] Possible unsafe locking scenario: [ 72.634234][ T62] [ 72.641683][ T62] CPU0 CPU1 [ 72.647044][ T62] ---- ---- [ 72.652407][ T62] lock(&psock->link_lock); [ 72.657002][ T62] lock(&stab->lock); [ 72.663592][ T62] lock(&psock->link_lock); [ 72.670706][ T62] lock(&stab->lock); [ 72.674782][ T62] [ 72.674782][ T62] *** DEADLOCK *** [ 72.674782][ T62] [ 72.682919][ T62] 6 locks held by kworker/u8:4/62: [ 72.688113][ T62] #0: ffff888015089148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x8e0/0x17c0 [ 72.699783][ T62] #1: ffffc900015d7d00 ((work_completion)(&map->work)){+.+.}-{0:0}, at: process_scheduled_works+0x91b/0x17c0 [ 72.711618][ T62] #2: ffff888022560a58 (sk_lock-AF_UNIX){+.+.}-{0:0}, at: sock_map_free+0x11e/0x3e0 [ 72.721115][ T62] #3: ffffffff8e334e20 (rcu_read_lock){....}-{1:2}, at: sock_map_free+0x12a/0x3e0 [ 72.730452][ T62] #4: ffff88807791e2b0 (&psock->link_lock){+...}-{2:2}, at: sock_map_unref+0xcc/0x5e0 [ 72.740212][ T62] #5: ffffffff8e334e20 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run2+0x1fc/0x540 [ 72.749624][ T62] [ 72.749624][ T62] stack backtrace: [ 72.755513][ T62] CPU: 1 PID: 62 Comm: kworker/u8:4 Not tainted 6.9.0-rc5-syzkaller-01479-ge612b5c1d3ee #0 [ 72.765488][ T62] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 [ 72.775548][ T62] Workqueue: events_unbound bpf_map_free_deferred [ 72.781975][ T62] Call Trace: [ 72.785256][ T62] [ 72.788194][ T62] dump_stack_lvl+0x241/0x360 [ 72.792910][ T62] ? __pfx_dump_stack_lvl+0x10/0x10 [ 72.798247][ T62] ? print_circular_bug+0x130/0x1a0 [ 72.803549][ T62] check_noncircular+0x36a/0x4a0 [ 72.808496][ T62] ? __read_once_word_nocheck+0x9/0x20 [ 72.813972][ T62] ? __pfx_check_noncircular+0x10/0x10 [ 72.819444][ T62] ? lockdep_lock+0x123/0x2b0 [ 72.824127][ T62] ? _find_first_zero_bit+0xd4/0x100 [ 72.829424][ T62] validate_chain+0x18cb/0x58e0 [ 72.834291][ T62] ? hlock_conflict+0x59/0x1e0 [ 72.839069][ T62] ? __pfx___bfs+0x10/0x10 [ 72.843490][ T62] ? check_noncircular+0x259/0x4a0 [ 72.848608][ T62] ? __pfx_validate_chain+0x10/0x10 [ 72.853818][ T62] ? lockdep_unlock+0x16a/0x300 [ 72.858668][ T62] ? __pfx_lockdep_unlock+0x10/0x10 [ 72.863868][ T62] ? lockdep_unlock+0x16a/0x300 [ 72.868726][ T62] ? __pfx_validate_chain+0x10/0x10 [ 72.873931][ T62] ? validate_chain+0x15a2/0x58e0 [ 72.878988][ T62] ? mark_lock+0x9a/0x350 [ 72.883326][ T62] __lock_acquire+0x1346/0x1fd0 [ 72.888192][ T62] lock_acquire+0x1ed/0x550 [ 72.892699][ T62] ? sock_map_delete_elem+0x175/0x250 [ 72.898086][ T62] ? __lock_acquire+0x1346/0x1fd0 [ 72.903394][ T62] ? __pfx_lock_acquire+0x10/0x10 [ 72.908445][ T62] ? sock_map_delete_elem+0x175/0x250 [ 72.913827][ T62] ? __pfx___local_bh_disable_ip+0x10/0x10 [ 72.919640][ T62] ? sock_map_delete_elem+0x175/0x250 [ 72.925030][ T62] _raw_spin_lock_bh+0x35/0x50 [ 72.929804][ T62] ? sock_map_delete_elem+0x175/0x250 [ 72.935182][ T62] sock_map_delete_elem+0x175/0x250 [ 72.940389][ T62] ? __pfx_sock_map_delete_elem+0x10/0x10 [ 72.946117][ T62] ? bpf_trace_run2+0x1fc/0x540 [ 72.950975][ T62] bpf_prog_b89bc06253186eb1+0x56/0x5a [ 72.956449][ T62] bpf_trace_run2+0x2ec/0x540 [ 72.961139][ T62] ? __pfx_bpf_trace_run2+0x10/0x10 [ 72.966343][ T62] ? do_raw_spin_lock+0x14f/0x370 [ 72.971382][ T62] ? sock_map_unref+0x3ac/0x5e0 [ 72.976239][ T62] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 72.982576][ T62] ? sock_map_unref+0x3ac/0x5e0 [ 72.987435][ T62] __traceiter_kfree+0x2b/0x50 [ 72.992218][ T62] ? sock_map_unref+0x3ac/0x5e0 [ 72.997082][ T62] kfree+0x2af/0x3a0 [ 73.001004][ T62] sock_map_unref+0x3ac/0x5e0 [ 73.005691][ T62] sock_map_free+0x1e7/0x3e0 [ 73.010392][ T62] ? sock_map_free+0x12a/0x3e0 [ 73.015160][ T62] bpf_map_free_deferred+0xe6/0x110 [ 73.020384][ T62] ? process_scheduled_works+0x91b/0x17c0 [ 73.026105][ T62] process_scheduled_works+0xa10/0x17c0 [ 73.031673][ T62] ? __pfx_process_scheduled_works+0x10/0x10 [pid 5099] close(3 [pid 5091] <... exit_group resumed>) = ? [pid 5100] <... prctl resumed>) = 0 [pid 5099] <... close resumed>) = 0 [pid 5098] +++ exited with 0 +++ [pid 5095] +++ exited with 0 +++ [pid 5100] setpgid(0, 0 [pid 5099] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5100] <... setpgid resumed>) = 0 [pid 5100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5099] <... openat resumed>) = 3 [pid 5096] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5098, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5100] <... openat resumed>) = 3 [pid 5099] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5096] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5100] write(3, "1000", 4 [pid 5099] <... socketpair resumed>[4, 5]) = 0 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5095, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5100] <... write resumed>) = 4 [pid 5100] close(3) = 0 [pid 5099] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5100] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5099] <... socketpair resumed>[6, 7]) = 0 [pid 5100] <... openat resumed>) = 3 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5100] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5099] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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./strace-static-x86_64: Process 5102 attached ./strace-static-x86_64: Process 5101 attached ) = 8 [pid 5102] set_robust_list(0x555586eaa660, 24 [pid 5101] set_robust_list(0x555586eaa660, 24) = 0 [pid 5099] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5101] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5102] <... set_robust_list resumed>) = 0 [pid 5100] <... socketpair resumed>[4, 5]) = 0 [pid 5099] <... bpf resumed>) = 9 [pid 5102] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5101] <... prctl resumed>) = 0 [ 73.037668][ T62] ? assign_work+0x364/0x3d0 [ 73.042270][ T62] worker_thread+0x86d/0xd70 [ 73.046868][ T62] ? __kthread_parkme+0x169/0x1d0 [ 73.051903][ T62] ? __pfx_worker_thread+0x10/0x10 [ 73.057021][ T62] kthread+0x2f0/0x390 [ 73.061098][ T62] ? __pfx_worker_thread+0x10/0x10 [ 73.066217][ T62] ? __pfx_kthread+0x10/0x10 [ 73.070814][ T62] ret_from_fork+0x4b/0x80 [ 73.075240][ T62] ? __pfx_kthread+0x10/0x10 [ 73.079924][ T62] ret_from_fork_asm+0x1a/0x30 [ 73.084731][ T62] [pid 5099] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5096] <... clone resumed>, child_tidptr=0x555586eaa650) = 5102 [pid 5102] <... prctl resumed>) = 0 [pid 5101] setpgid(0, 0 [pid 5100] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5099] <... bpf resumed>) = 10 [pid 5093] <... clone resumed>, child_tidptr=0x555586eaa650) = 5101 [pid 5102] setpgid(0, 0 [pid 5101] <... setpgid resumed>) = 0 [pid 5100] <... socketpair resumed>[6, 7]) = 0 [pid 5099] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5102] <... setpgid resumed>) = 0 [pid 5100] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5102] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5101] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5100] <... bpf resumed>) = 8 [pid 5099] <... bpf resumed>) = 11 [pid 5102] <... openat resumed>) = 3 [pid 5100] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5099] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5102] write(3, "1000", 4 [pid 5101] <... openat resumed>) = 3 [pid 5100] <... bpf resumed>) = 9 [pid 5099] <... bpf resumed>) = 12 [pid 5099] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5102] <... write resumed>) = 4 [pid 5101] write(3, "1000", 4 [pid 5100] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5102] close(3 [pid 5101] <... write resumed>) = 4 [pid 5099] <... bpf resumed>) = 13 [pid 5102] <... close resumed>) = 0 [pid 5101] close(3 [pid 5100] <... bpf resumed>) = 10 [pid 5099] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5091] +++ exited with 0 +++ [pid 5102] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5101] <... close resumed>) = 0 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5091, si_uid=0, si_status=0, si_utime=0, si_stime=67 /* 0.67 s */} --- [pid 5102] <... openat resumed>) = 3 [pid 5101] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5100] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5099] <... bpf resumed>) = 14 [pid 5102] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5101] <... openat resumed>) = 3 [pid 5100] <... bpf resumed>) = 11 [pid 5101] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5100] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5099] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5102] <... socketpair resumed>[4, 5]) = 0 [pid 5101] <... socketpair resumed>[4, 5]) = 0 [pid 5100] <... bpf resumed>) = 12 [pid 5099] <... socketpair resumed>[15, 16]) = 0 [pid 5102] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5101] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5100] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5102] <... socketpair resumed>[6, 7]) = 0 [pid 5101] <... socketpair resumed>[6, 7]) = 0 [pid 5100] <... bpf resumed>) = 13 [pid 5099] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5102] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5101] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5100] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5099] <... openat resumed>) = -1 EEXIST (File exists) ./strace-static-x86_64: Process 5103 attached [pid 5102] <... bpf resumed>) = 8 [pid 5101] <... bpf resumed>) = 8 [pid 5100] <... bpf resumed>) = 14 [pid 5099] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5103] set_robust_list(0x555586eaa660, 24 [pid 5102] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5101] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5089] <... clone resumed>, child_tidptr=0x555586eaa650) = 5103 [pid 5103] <... set_robust_list resumed>) = 0 [pid 5102] <... bpf resumed>) = 9 [pid 5100] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5099] <... bpf resumed> => 6}, 8) = 0 [pid 5103] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5102] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5101] <... bpf resumed>) = 9 [pid 5100] <... socketpair resumed>[15, 16]) = 0 [pid 5099] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5103] <... prctl resumed>) = 0 [pid 5103] setpgid(0, 0 [pid 5099] <... bpf resumed>) = 17 [pid 5103] <... setpgid resumed>) = 0 [pid 5099] perf_event_open( [pid 5103] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5100] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5099] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5103] <... openat resumed>) = 3 [pid 5102] <... bpf resumed>) = 10 [pid 5101] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5100] <... openat resumed>) = -1 EEXIST (File exists) [pid 5099] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5103] write(3, "1000", 4 [pid 5102] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5099] <... socketpair resumed>[19, 20]) = 0 [pid 5100] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5099] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5103] <... write resumed>) = 4 [pid 5102] <... bpf resumed>) = 11 [pid 5101] <... bpf resumed>) = 10 [pid 5100] <... bpf resumed> => 6}, 8) = 0 [pid 5103] close(3 [pid 5102] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5100] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5099] <... bpf resumed>) = 21 [pid 5103] <... close resumed>) = 0 [pid 5102] <... bpf resumed>) = 12 [pid 5101] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5100] <... bpf resumed>) = 17 [pid 5103] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5102] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5100] perf_event_open( [pid 5099] perf_event_open( [pid 5103] <... openat resumed>) = 3 [pid 5102] <... bpf resumed>) = 13 [pid 5101] <... bpf resumed>) = 11 [pid 5100] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5099] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5103] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5100] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5101] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5103] <... socketpair resumed>[4, 5]) = 0 [pid 5102] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5101] <... bpf resumed>) = 12 [pid 5100] <... socketpair resumed>[19, 20]) = 0 [pid 5099] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5103] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5100] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5099] <... bpf resumed>) = 23 [pid 5103] <... socketpair resumed>[6, 7]) = 0 [pid 5102] <... bpf resumed>) = 14 [pid 5101] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5100] <... bpf resumed>) = 21 [pid 5099] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5103] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5102] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5101] <... bpf resumed>) = 13 [pid 5100] perf_event_open( [pid 5099] <... openat resumed>) = 24 [pid 5103] <... bpf resumed>) = 8 [pid 5103] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5102] <... socketpair resumed>[15, 16]) = 0 [pid 5101] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5100] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5103] <... bpf resumed>) = 9 [pid 5102] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5099] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5103] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5102] <... openat resumed>) = -1 EEXIST (File exists) [pid 5099] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5103] <... bpf resumed>) = 10 [pid 5102] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5100] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5099] perf_event_open( [pid 5102] <... bpf resumed> => 6}, 8) = 0 [pid 5101] <... bpf resumed>) = 14 [pid 5102] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5101] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5100] <... bpf resumed>) = 23 [pid 5099] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5103] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5099] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5103] <... bpf resumed>) = 11 [pid 5102] <... bpf resumed>) = 17 [pid 5101] <... socketpair resumed>[15, 16]) = 0 [pid 5100] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5103] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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) = 12 [pid 5102] perf_event_open( [pid 5101] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5100] <... openat resumed>) = 24 [pid 5099] <... bpf resumed>) = 26 [pid 5103] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5099] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5102] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5101] <... openat resumed>) = -1 EEXIST (File exists) [pid 5100] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5103] <... bpf resumed>) = 13 [pid 5102] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5101] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5103] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5102] <... socketpair resumed>[19, 20]) = 0 [pid 5101] <... bpf resumed> => 6}, 8) = 0 [pid 5100] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5099] <... bpf resumed>) = 27 [pid 5099] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777) = -1 ENOENT (No such file or directory) [pid 5099] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5102] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5101] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5100] perf_event_open( [pid 5099] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5103] <... bpf resumed>) = 14 [pid 5101] <... bpf resumed>) = 17 [pid 5099] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 999 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 tot"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72) = 28 [pid 5101] perf_event_open( [pid 5099] close(28 [pid 5103] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5102] <... bpf resumed>) = 21 [pid 5101] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5100] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5101] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5103] <... socketpair resumed>[15, 16]) = 0 [pid 5102] perf_event_open( [pid 5100] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5099] <... close resumed>) = 0 [pid 5103] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5101] <... socketpair resumed>[19, 20]) = 0 [pid 5103] <... openat resumed>) = -1 EEXIST (File exists) [pid 5102] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5101] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5099] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5103] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5102] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5100] <... bpf resumed>) = 26 [pid 5099] <... socketpair resumed>[28, 29]) = 0 [pid 5103] <... bpf resumed> => 6}, 8) = 0 [pid 5102] <... bpf resumed>) = 23 [pid 5101] <... bpf resumed>) = 21 [pid 5100] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5099] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5103] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5102] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5101] perf_event_open( [pid 5100] <... bpf resumed>) = 27 [pid 5099] <... bpf resumed>) = 30 [pid 5103] <... bpf resumed>) = 17 [pid 5102] <... openat resumed>) = 24 [pid 5100] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5099] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5103] perf_event_open({type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5099] <... bpf resumed>) = 0 [pid 5103] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5101] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5101] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5102] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5100] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5099] exit_group(0 [pid 5101] <... bpf resumed>) = 23 [pid 5103] <... socketpair resumed>[19, 20]) = 0 [pid 5099] <... exit_group resumed>) = ? [pid 5103] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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) = 21 [pid 5101] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5100] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5103] perf_event_open( [pid 5102] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5103] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5101] <... openat resumed>) = 24 [pid 5100] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5102] perf_event_open( [pid 5103] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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) = 23 [pid 5103] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 24 [pid 5102] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5101] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5100] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1616 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5099] +++ exited with 0 +++ [pid 5103] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5102] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5101] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5099, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5103] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5101] perf_event_open( [pid 5100] <... bpf resumed>) = 28 [pid 5101] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5103] perf_event_open( [pid 5101] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5103] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5100] close(28 [pid 5103] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5102] <... bpf resumed>) = 26 [pid 5101] <... bpf resumed>) = 26 [pid 5100] <... close resumed>) = 0 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5100] socketpair(AF_UNIX, SOCK_STREAM, 0, [28, 29]) = 0 [pid 5100] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5101] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5103] <... bpf resumed>) = 26 [pid 5101] <... bpf resumed>) = 27 [pid 5100] <... bpf resumed>) = 30 [pid 5100] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32) = 0 [pid 5100] exit_group(0) = ? [pid 5101] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777./strace-static-x86_64: Process 5104 attached [pid 5103] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5102] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5101] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5104] set_robust_list(0x555586eaa660, 24 [pid 5103] <... bpf resumed>) = 27 [pid 5101] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5104] <... set_robust_list resumed>) = 0 [pid 5102] <... bpf resumed>) = 27 [pid 5101] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5104] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5101] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1370 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5104] <... prctl resumed>) = 0 [pid 5103] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5102] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5090] <... clone resumed>, child_tidptr=0x555586eaa650) = 5104 [pid 5104] setpgid(0, 0 [pid 5103] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5101] <... bpf resumed>) = 28 [pid 5100] +++ exited with 0 +++ [pid 5104] <... setpgid resumed>) = 0 [pid 5102] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5104] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5102] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5094] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5100, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5103] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5102] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5094] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5102] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 3338 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5104] <... openat resumed>) = 3 [pid 5103] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5101] close(28 [pid 5104] write(3, "1000", 4 [pid 5103] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 953 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 tot"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5101] <... close resumed>) = 0 ./strace-static-x86_64: Process 5105 attached [pid 5104] <... write resumed>) = 4 [pid 5102] <... bpf resumed>) = 28 [pid 5101] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5094] <... clone resumed>, child_tidptr=0x555586eaa650) = 5105 [pid 5105] set_robust_list(0x555586eaa660, 24 [pid 5104] close(3 [pid 5102] close(28 [pid 5101] <... socketpair resumed>[28, 29]) = 0 [pid 5105] <... set_robust_list resumed>) = 0 [pid 5104] <... close resumed>) = 0 [pid 5101] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5105] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5104] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5102] <... close resumed>) = 0 [pid 5101] <... bpf resumed>) = 30 [pid 5105] <... prctl resumed>) = 0 [pid 5101] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5105] setpgid(0, 0 [pid 5104] <... openat resumed>) = 3 [pid 5102] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5101] <... bpf resumed>) = 0 [pid 5105] <... setpgid resumed>) = 0 [pid 5104] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5101] exit_group(0 [pid 5102] <... socketpair resumed>[28, 29]) = 0 [pid 5105] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5102] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5105] <... openat resumed>) = 3 [pid 5104] <... socketpair resumed>[4, 5]) = 0 [pid 5101] <... exit_group resumed>) = ? [pid 5105] write(3, "1000", 4 [pid 5104] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5103] <... bpf resumed>) = 28 [pid 5102] <... bpf resumed>) = 30 [pid 5102] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5105] <... write resumed>) = 4 [pid 5104] <... socketpair resumed>[6, 7]) = 0 [pid 5102] <... bpf resumed>) = 0 [pid 5105] close(3 [pid 5102] exit_group(0 [pid 5105] <... close resumed>) = 0 [pid 5105] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5104] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5103] close(28 [pid 5102] <... exit_group resumed>) = ? [pid 5105] <... openat resumed>) = 3 [pid 5104] <... bpf resumed>) = 8 [pid 5101] +++ exited with 0 +++ [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5101, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5103] <... close resumed>) = 0 [pid 5104] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5103] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5105] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5104] <... bpf resumed>) = 9 [pid 5105] <... socketpair resumed>[4, 5]) = 0 [pid 5105] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5104] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5103] <... socketpair resumed>[28, 29]) = 0 [pid 5105] <... socketpair resumed>[6, 7]) = 0 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5105] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5104] <... bpf resumed>) = 10 [pid 5103] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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./strace-static-x86_64: Process 5106 attached [pid 5105] <... bpf resumed>) = 8 [pid 5103] <... bpf resumed>) = 30 [pid 5093] <... clone resumed>, child_tidptr=0x555586eaa650) = 5106 [pid 5106] set_robust_list(0x555586eaa660, 24 [pid 5104] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5105] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5106] <... set_robust_list resumed>) = 0 [pid 5104] <... bpf resumed>) = 11 [pid 5103] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5106] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5104] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5103] <... bpf resumed>) = 0 [pid 5106] <... prctl resumed>) = 0 [pid 5105] <... bpf resumed>) = 9 [pid 5104] <... bpf resumed>) = 12 [pid 5102] +++ exited with 0 +++ [pid 5103] exit_group(0 [pid 5104] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5096] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5102, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5096] restart_syscall(<... resuming interrupted clone ...> [pid 5106] setpgid(0, 0 [pid 5105] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5096] <... restart_syscall resumed>) = 0 [pid 5106] <... setpgid resumed>) = 0 [pid 5104] <... bpf resumed>) = 13 [pid 5103] <... exit_group resumed>) = ? [pid 5106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5096] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5105] <... bpf resumed>) = 10 ./strace-static-x86_64: Process 5107 attached [pid 5107] set_robust_list(0x555586eaa660, 24 [pid 5096] <... clone resumed>, child_tidptr=0x555586eaa650) = 5107 [pid 5107] <... set_robust_list resumed>) = 0 [pid 5106] <... openat resumed>) = 3 [pid 5107] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5106] write(3, "1000", 4 [pid 5105] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5104] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5107] setpgid(0, 0 [pid 5106] <... write resumed>) = 4 [pid 5105] <... bpf resumed>) = 11 [pid 5107] <... setpgid resumed>) = 0 [pid 5106] close(3 [pid 5105] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5107] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5106] <... close resumed>) = 0 [pid 5105] <... bpf resumed>) = 12 [pid 5104] <... bpf resumed>) = 14 [pid 5107] <... openat resumed>) = 3 [pid 5104] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5107] write(3, "1000", 4 [pid 5106] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5105] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5104] <... socketpair resumed>[15, 16]) = 0 [pid 5107] <... write resumed>) = 4 [pid 5106] <... openat resumed>) = 3 [pid 5104] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5107] close(3 [pid 5104] <... openat resumed>) = -1 EEXIST (File exists) [pid 5107] <... close resumed>) = 0 [pid 5107] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5106] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5105] <... bpf resumed>) = 13 [pid 5104] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5107] <... openat resumed>) = 3 [pid 5104] <... bpf resumed> => 6}, 8) = 0 [pid 5106] <... socketpair resumed>[4, 5]) = 0 [pid 5105] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5104] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5106] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5104] <... bpf resumed>) = 17 [pid 5104] perf_event_open( [pid 5106] <... socketpair resumed>[6, 7]) = 0 [pid 5104] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5106] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5104] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [19, 20]) = 0 [pid 5107] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5106] <... bpf resumed>) = 8 [pid 5104] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5107] <... socketpair resumed>[4, 5]) = 0 [pid 5106] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5107] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5105] <... bpf resumed>) = 14 [pid 5106] <... bpf resumed>) = 9 [pid 5107] <... socketpair resumed>[6, 7]) = 0 [pid 5106] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5105] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5107] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5104] <... bpf resumed>) = 21 [pid 5105] <... socketpair resumed>[15, 16]) = 0 [pid 5104] perf_event_open( [pid 5107] <... bpf resumed>) = 8 [pid 5107] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5105] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5107] <... bpf resumed>) = 9 [pid 5105] <... openat resumed>) = -1 EEXIST (File exists) [pid 5107] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5106] <... bpf resumed>) = 10 [pid 5105] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5106] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5105] <... bpf resumed> => 6}, 8) = 0 [pid 5106] <... bpf resumed>) = 11 [pid 5105] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4) = 17 [pid 5106] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5105] perf_event_open( [pid 5107] <... bpf resumed>) = 10 [pid 5107] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5106] <... bpf resumed>) = 12 [pid 5106] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5107] <... bpf resumed>) = 11 [pid 5105] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5107] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5105] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5106] <... bpf resumed>) = 13 [pid 5105] <... socketpair resumed>[19, 20]) = 0 [pid 5107] <... bpf resumed>) = 12 [pid 5106] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5107] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5105] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5106] <... bpf resumed>) = 14 [pid 5107] <... bpf resumed>) = 13 [pid 5106] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5107] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5106] <... socketpair resumed>[15, 16]) = 0 [pid 5106] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5105] <... bpf resumed>) = 21 [pid 5106] <... openat resumed>) = -1 EEXIST (File exists) [pid 5106] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 => 6}, 8) = 0 [pid 5105] perf_event_open( [pid 5106] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5107] <... bpf resumed>) = 14 [pid 5106] <... bpf resumed>) = 17 [pid 5106] perf_event_open( [pid 5107] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [15, 16]) = 0 [pid 5106] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5104] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5105] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5106] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5105] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5107] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5106] <... socketpair resumed>[19, 20]) = 0 [pid 5104] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5107] <... openat resumed>) = -1 EEXIST (File exists) [pid 5106] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5105] <... bpf resumed>) = 23 [pid 5103] +++ exited with 0 +++ [pid 5107] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5104] <... bpf resumed>) = 23 [pid 5107] <... bpf resumed> => 6}, 8) = 0 [pid 5106] <... bpf resumed>) = 21 [pid 5107] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5103, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5107] <... bpf resumed>) = 17 [pid 5104] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5107] perf_event_open( [pid 5105] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5106] perf_event_open(./strace-static-x86_64: Process 5108 attached [pid 5107] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5106] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5105] <... openat resumed>) = 24 [pid 5104] <... openat resumed>) = 24 [pid 5089] <... clone resumed>, child_tidptr=0x555586eaa650) = 5108 [pid 5108] set_robust_list(0x555586eaa660, 24 [pid 5107] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5104] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5108] <... set_robust_list resumed>) = 0 [pid 5107] <... socketpair resumed>[19, 20]) = 0 [pid 5106] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5105] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5104] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5108] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5107] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5106] <... bpf resumed>) = 23 [pid 5105] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5104] perf_event_open( [pid 5108] <... prctl resumed>) = 0 [pid 5105] perf_event_open( [pid 5106] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5105] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5107] <... bpf resumed>) = 21 [pid 5106] <... openat resumed>) = 24 [pid 5104] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5108] setpgid(0, 0 [pid 5106] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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) = -1 EINVAL (Invalid argument) [pid 5105] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5108] <... setpgid resumed>) = 0 [pid 5107] perf_event_open( [pid 5106] perf_event_open( [pid 5104] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5107] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5106] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5105] <... bpf resumed>) = 26 [pid 5106] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5108] <... openat resumed>) = 3 [pid 5107] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5108] write(3, "1000", 4 [pid 5107] <... bpf resumed>) = 23 [pid 5106] <... bpf resumed>) = 26 [pid 5105] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5108] <... write resumed>) = 4 [pid 5108] close(3 [pid 5107] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5108] <... close resumed>) = 0 [pid 5108] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5107] <... openat resumed>) = 24 [pid 5105] <... bpf resumed>) = 27 [pid 5104] <... bpf resumed>) = 26 [pid 5106] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5108] <... openat resumed>) = 3 [pid 5104] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5108] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5107] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5105] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5108] <... socketpair resumed>[4, 5]) = 0 [pid 5107] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5106] <... bpf resumed>) = 27 [pid 5105] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5104] <... bpf resumed>) = 27 [pid 5108] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5105] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5108] <... socketpair resumed>[6, 7]) = 0 [pid 5107] perf_event_open( [pid 5105] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5104] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5106] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5105] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 2568 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5108] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5107] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5106] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5105] <... bpf resumed>) = 28 [pid 5104] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5106] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5106] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1742 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5108] <... bpf resumed>) = 8 [pid 5107] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5104] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5108] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5104] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5108] <... bpf resumed>) = 9 [pid 5106] <... bpf resumed>) = 28 [pid 5105] close(28 [pid 5104] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 4275 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5107] <... bpf resumed>) = 26 [pid 5106] close(28 [pid 5105] <... close resumed>) = 0 [pid 5106] <... close resumed>) = 0 [pid 5105] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5106] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5105] <... socketpair resumed>[28, 29]) = 0 [pid 5106] <... socketpair resumed>[28, 29]) = 0 [pid 5105] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5106] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5105] <... bpf resumed>) = 30 [pid 5106] <... bpf resumed>) = 30 [pid 5104] <... bpf resumed>) = 28 [pid 5108] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5107] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5106] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5105] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5104] close(28 [pid 5106] <... bpf resumed>) = 0 [pid 5105] <... bpf resumed>) = 0 [pid 5106] exit_group(0 [pid 5105] exit_group(0) = ? [pid 5107] <... bpf resumed>) = 27 [pid 5106] <... exit_group resumed>) = ? [pid 5108] <... bpf resumed>) = 10 [pid 5107] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5104] <... close resumed>) = 0 [pid 5108] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5107] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5104] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5107] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5104] <... socketpair resumed>[28, 29]) = 0 [pid 5107] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1482 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5108] <... bpf resumed>) = 11 [pid 5104] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5108] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5107] <... bpf resumed>) = 28 [pid 5106] +++ exited with 0 +++ [pid 5104] <... bpf resumed>) = 30 [pid 5108] <... bpf resumed>) = 12 [pid 5107] close(28 [pid 5105] +++ exited with 0 +++ [pid 5104] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5108] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5107] <... close resumed>) = 0 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5106, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5104] <... bpf resumed>) = 0 [pid 5093] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5108] <... bpf resumed>) = 13 [pid 5094] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5105, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5107] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5104] exit_group(0 [pid 5094] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5109 attached [pid 5108] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5107] <... socketpair resumed>[28, 29]) = 0 ./strace-static-x86_64: Process 5110 attached [pid 5109] set_robust_list(0x555586eaa660, 24 [pid 5107] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5104] <... exit_group resumed>) = ? [pid 5094] <... clone resumed>, child_tidptr=0x555586eaa650) = 5109 [pid 5110] set_robust_list(0x555586eaa660, 24 [pid 5109] <... set_robust_list resumed>) = 0 [pid 5108] <... bpf resumed>) = 14 [pid 5107] <... bpf resumed>) = 30 [pid 5110] <... set_robust_list resumed>) = 0 [pid 5109] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5107] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5110] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5109] <... prctl resumed>) = 0 [pid 5107] <... bpf resumed>) = 0 [pid 5109] setpgid(0, 0 [pid 5107] exit_group(0 [pid 5093] <... clone resumed>, child_tidptr=0x555586eaa650) = 5110 [pid 5110] <... prctl resumed>) = 0 [pid 5109] <... setpgid resumed>) = 0 [pid 5110] setpgid(0, 0 [pid 5108] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5107] <... exit_group resumed>) = ? [pid 5109] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5108] <... socketpair resumed>[15, 16]) = 0 [pid 5110] <... setpgid resumed>) = 0 [pid 5110] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5108] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5110] <... openat resumed>) = 3 [pid 5109] <... openat resumed>) = 3 [pid 5108] <... openat resumed>) = -1 EEXIST (File exists) [pid 5104] +++ exited with 0 +++ [pid 5110] write(3, "1000", 4 [pid 5109] write(3, "1000", 4 [pid 5108] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5110] <... write resumed>) = 4 [pid 5109] <... write resumed>) = 4 [pid 5108] <... bpf resumed> => 6}, 8) = 0 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5104, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5110] close(3 [pid 5109] close(3 [pid 5090] restart_syscall(<... resuming interrupted clone ...> [pid 5110] <... close resumed>) = 0 [pid 5109] <... close resumed>) = 0 [pid 5108] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5090] <... restart_syscall resumed>) = 0 [pid 5110] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5109] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5108] <... bpf resumed>) = 17 [pid 5110] <... openat resumed>) = 3 [pid 5109] <... openat resumed>) = 3 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5110] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5109] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5108] perf_event_open( [pid 5110] <... socketpair resumed>[4, 5]) = 0 [pid 5109] <... socketpair resumed>[4, 5]) = 0 [pid 5108] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5110] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5109] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5108] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5090] <... clone resumed>, child_tidptr=0x555586eaa650) = 5111 ./strace-static-x86_64: Process 5111 attached [pid 5110] <... socketpair resumed>[6, 7]) = 0 [pid 5109] <... socketpair resumed>[6, 7]) = 0 [pid 5108] <... socketpair resumed>[19, 20]) = 0 [pid 5110] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5109] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5111] set_robust_list(0x555586eaa660, 24 [pid 5110] <... bpf resumed>) = 8 [pid 5108] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5111] <... set_robust_list resumed>) = 0 [pid 5110] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5109] <... bpf resumed>) = 8 [pid 5111] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5108] <... bpf resumed>) = 21 [pid 5111] <... prctl resumed>) = 0 [pid 5109] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5108] perf_event_open( [pid 5111] setpgid(0, 0 [pid 5110] <... bpf resumed>) = 9 [pid 5109] <... bpf resumed>) = 9 [pid 5111] <... setpgid resumed>) = 0 [pid 5111] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5110] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5109] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5111] <... openat resumed>) = 3 [pid 5111] write(3, "1000", 4) = 4 [pid 5111] close(3) = 0 [pid 5111] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5110] <... bpf resumed>) = 10 [pid 5109] <... bpf resumed>) = 10 [pid 5111] <... openat resumed>) = 3 [pid 5110] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5109] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5111] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5110] <... bpf resumed>) = 11 [pid 5109] <... bpf resumed>) = 11 [pid 5108] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5111] <... socketpair resumed>[4, 5]) = 0 [pid 5110] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5109] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5111] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5110] <... bpf resumed>) = 12 [pid 5108] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5111] <... socketpair resumed>[6, 7]) = 0 [pid 5110] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5109] <... bpf resumed>) = 12 [pid 5108] <... bpf resumed>) = 23 [pid 5107] +++ exited with 0 +++ [pid 5111] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5108] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5111] <... bpf resumed>) = 8 [pid 5110] <... bpf resumed>) = 13 [pid 5109] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5108] <... openat resumed>) = 24 [pid 5096] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5107, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5111] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5110] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5111] <... bpf resumed>) = 9 [pid 5109] <... bpf resumed>) = 13 [pid 5108] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5096] restart_syscall(<... resuming interrupted clone ...> [pid 5111] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5108] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5096] <... restart_syscall resumed>) = 0 [pid 5111] <... bpf resumed>) = 10 [pid 5110] <... bpf resumed>) = 14 [pid 5109] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5108] perf_event_open( [pid 5111] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5110] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5108] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5108] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5109] <... bpf resumed>) = 14 [pid 5111] <... bpf resumed>) = 11 [pid 5111] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5110] <... socketpair resumed>[15, 16]) = 0 [pid 5109] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5111] <... bpf resumed>) = 12 [pid 5108] <... bpf resumed>) = 26 [pid 5110] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5096] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5108] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5111] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5110] <... openat resumed>) = -1 EEXIST (File exists) [pid 5109] <... socketpair resumed>[15, 16]) = 0 [pid 5108] <... bpf resumed>) = 27 [pid 5110] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 => 6}, 8) = 0 [pid 5110] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5109] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5108] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777./strace-static-x86_64: Process 5112 attached [pid 5111] <... bpf resumed>) = 13 [pid 5110] <... bpf resumed>) = 17 [pid 5109] <... openat resumed>) = -1 EEXIST (File exists) [pid 5112] set_robust_list(0x555586eaa660, 24 [pid 5111] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5108] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5096] <... clone resumed>, child_tidptr=0x555586eaa650) = 5112 [pid 5112] <... set_robust_list resumed>) = 0 [pid 5108] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5112] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5108] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5108] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1480 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5110] perf_event_open( [pid 5109] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5112] <... prctl resumed>) = 0 [pid 5108] <... bpf resumed>) = 28 [pid 5112] setpgid(0, 0 [pid 5111] <... bpf resumed>) = 14 [pid 5109] <... bpf resumed> => 6}, 8) = 0 [pid 5110] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5112] <... setpgid resumed>) = 0 [pid 5112] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5110] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5108] close(28 [pid 5112] write(3, "1000", 4 [pid 5108] <... close resumed>) = 0 [pid 5112] <... write resumed>) = 4 [pid 5112] close(3 [pid 5111] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5110] <... socketpair resumed>[19, 20]) = 0 [pid 5109] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5108] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5112] <... close resumed>) = 0 [pid 5111] <... socketpair resumed>[15, 16]) = 0 [pid 5110] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5109] <... bpf resumed>) = 17 [pid 5108] <... socketpair resumed>[28, 29]) = 0 [pid 5112] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5111] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5112] <... openat resumed>) = 3 [pid 5111] <... openat resumed>) = -1 EEXIST (File exists) [pid 5110] <... bpf resumed>) = 21 [pid 5109] perf_event_open( [pid 5108] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5112] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5111] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5112] <... socketpair resumed>[4, 5]) = 0 [pid 5111] <... bpf resumed> => 6}, 8) = 0 [pid 5111] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5109] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5112] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5111] <... bpf resumed>) = 17 [pid 5108] <... bpf resumed>) = 30 [pid 5112] <... socketpair resumed>[6, 7]) = 0 [pid 5111] perf_event_open({type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5112] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5111] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5112] <... bpf resumed>) = 8 [pid 5110] perf_event_open( [pid 5109] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5108] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5112] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5111] <... socketpair resumed>[19, 20]) = 0 [pid 5110] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5109] <... socketpair resumed>[19, 20]) = 0 [pid 5108] <... bpf resumed>) = 0 [pid 5112] <... bpf resumed>) = 9 [pid 5111] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5108] exit_group(0 [pid 5112] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5110] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5109] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5108] <... exit_group resumed>) = ? [pid 5111] <... bpf resumed>) = 21 [pid 5112] <... bpf resumed>) = 10 [pid 5111] perf_event_open( [pid 5110] <... bpf resumed>) = 23 [pid 5109] <... bpf resumed>) = 21 [pid 5110] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5111] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5110] <... openat resumed>) = 24 [pid 5109] perf_event_open( [pid 5112] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5111] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5110] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5111] <... bpf resumed>) = 23 [pid 5112] <... bpf resumed>) = 11 [pid 5112] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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) = 12 [pid 5112] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115) = 13 [pid 5111] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5110] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5112] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5111] <... openat resumed>) = 24 [pid 5110] perf_event_open( [pid 5111] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5112] <... bpf resumed>) = 14 [pid 5111] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5111] perf_event_open( [pid 5112] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [15, 16]) = 0 [pid 5112] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000) = -1 EEXIST (File exists) [pid 5112] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 => 6}, 8) = 0 [pid 5112] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4) = 17 [pid 5112] perf_event_open( [pid 5111] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5110] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5109] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5108] +++ exited with 0 +++ [pid 5111] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5112] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5110] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5109] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5108, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5112] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5111] <... bpf resumed>) = 26 [pid 5111] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20) = 27 [pid 5110] <... bpf resumed>) = 26 [pid 5111] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5112] <... socketpair resumed>[19, 20]) = 0 [pid 5110] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5109] <... bpf resumed>) = 23 [pid 5112] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5113 attached [pid 5111] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5110] <... bpf resumed>) = 27 [pid 5109] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5111] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5109] <... openat resumed>) = 24 [pid 5111] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1154 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5109] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5113] set_robust_list(0x555586eaa660, 24 [pid 5112] <... bpf resumed>) = 21 [pid 5110] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5109] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5089] <... clone resumed>, child_tidptr=0x555586eaa650) = 5113 [pid 5113] <... set_robust_list resumed>) = 0 [pid 5109] perf_event_open( [pid 5113] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5112] perf_event_open( [pid 5111] <... bpf resumed>) = 28 [pid 5109] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5113] <... prctl resumed>) = 0 [pid 5110] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5109] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5113] setpgid(0, 0 [pid 5112] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5111] close(28 [pid 5110] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5113] <... setpgid resumed>) = 0 [pid 5110] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5113] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5112] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5111] <... close resumed>) = 0 [pid 5109] <... bpf resumed>) = 26 [pid 5110] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 944 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 tot"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5113] <... openat resumed>) = 3 [pid 5112] <... bpf resumed>) = 23 [pid 5111] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5110] <... bpf resumed>) = 28 [pid 5109] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5112] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5113] write(3, "1000", 4) = 4 [pid 5113] close(3) = 0 [pid 5111] <... socketpair resumed>[28, 29]) = 0 [pid 5109] <... bpf resumed>) = 27 [pid 5113] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5110] close(28 [pid 5112] <... openat resumed>) = 24 [pid 5111] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5109] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5113] <... openat resumed>) = 3 [pid 5112] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5111] <... bpf resumed>) = 30 [pid 5110] <... close resumed>) = 0 [pid 5109] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5113] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5112] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5111] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5110] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5109] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5113] <... socketpair resumed>[4, 5]) = 0 [pid 5112] perf_event_open( [pid 5111] <... bpf resumed>) = 0 [pid 5110] <... socketpair resumed>[28, 29]) = 0 [pid 5113] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5109] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5113] <... socketpair resumed>[6, 7]) = 0 [pid 5112] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5110] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5113] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5112] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5111] exit_group(0 [pid 5109] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1127 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5113] <... bpf resumed>) = 8 [pid 5110] <... bpf resumed>) = 30 [pid 5111] <... exit_group resumed>) = ? [pid 5109] <... bpf resumed>) = 28 [pid 5113] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5110] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32) = 0 [pid 5110] exit_group(0) = ? [pid 5112] <... bpf resumed>) = 26 [pid 5112] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5113] <... bpf resumed>) = 9 [pid 5109] close(28) = 0 [pid 5109] socketpair(AF_UNIX, SOCK_STREAM, 0, [28, 29]) = 0 [pid 5113] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5109] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5112] <... bpf resumed>) = 27 [pid 5109] <... bpf resumed>) = 30 [pid 5112] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5109] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5112] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5109] <... bpf resumed>) = 0 [pid 5109] exit_group(0 [pid 5112] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5110] +++ exited with 0 +++ [pid 5109] <... exit_group resumed>) = ? [pid 5113] <... bpf resumed>) = 10 [pid 5112] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5112] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 6028 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72) = 28 [pid 5113] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5110, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5093] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5112] close(28 [pid 5113] <... bpf resumed>) = 11 [pid 5111] +++ exited with 0 +++ [pid 5109] +++ exited with 0 +++ [pid 5112] <... close resumed>) = 0 [pid 5113] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5112] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5094] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5109, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5111, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5113] <... bpf resumed>) = 12 [pid 5094] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5113] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115./strace-static-x86_64: Process 5116 attached ./strace-static-x86_64: Process 5114 attached ) = 13 [pid 5112] <... socketpair resumed>[28, 29]) = 0 [pid 5113] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5093] <... clone resumed>, child_tidptr=0x555586eaa650) = 5114 [pid 5116] set_robust_list(0x555586eaa660, 24 [pid 5112] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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./strace-static-x86_64: Process 5115 attached [pid 5116] <... set_robust_list resumed>) = 0 [pid 5114] set_robust_list(0x555586eaa660, 24 [pid 5113] <... bpf resumed>) = 14 [pid 5094] <... clone resumed>, child_tidptr=0x555586eaa650) = 5116 [pid 5090] <... clone resumed>, child_tidptr=0x555586eaa650) = 5115 [pid 5116] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5115] set_robust_list(0x555586eaa660, 24 [pid 5114] <... set_robust_list resumed>) = 0 [pid 5113] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5112] <... bpf resumed>) = 30 [pid 5116] <... prctl resumed>) = 0 [pid 5115] <... set_robust_list resumed>) = 0 [pid 5114] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5113] <... socketpair resumed>[15, 16]) = 0 [pid 5112] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5116] setpgid(0, 0 [pid 5115] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5114] <... prctl resumed>) = 0 [pid 5113] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5116] <... setpgid resumed>) = 0 [pid 5115] <... prctl resumed>) = 0 [pid 5114] setpgid(0, 0 [pid 5113] <... openat resumed>) = -1 EEXIST (File exists) [pid 5112] <... bpf resumed>) = 0 [pid 5116] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5115] setpgid(0, 0 [pid 5114] <... setpgid resumed>) = 0 [pid 5112] exit_group(0 [pid 5116] <... openat resumed>) = 3 [pid 5115] <... setpgid resumed>) = 0 [pid 5114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5113] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5112] <... exit_group resumed>) = ? [pid 5113] <... bpf resumed> => 6}, 8) = 0 [pid 5113] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5116] write(3, "1000", 4 [pid 5115] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5114] <... openat resumed>) = 3 [pid 5113] <... bpf resumed>) = 17 [pid 5116] <... write resumed>) = 4 [pid 5115] <... openat resumed>) = 3 [pid 5114] write(3, "1000", 4 [pid 5113] perf_event_open( [pid 5116] close(3 [pid 5114] <... write resumed>) = 4 [pid 5113] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5115] write(3, "1000", 4 [pid 5116] <... close resumed>) = 0 [pid 5115] <... write resumed>) = 4 [pid 5114] close(3 [pid 5113] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5115] close(3 [pid 5114] <... close resumed>) = 0 [pid 5113] <... socketpair resumed>[19, 20]) = 0 [pid 5115] <... close resumed>) = 0 [pid 5116] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5115] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5114] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5113] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5116] <... openat resumed>) = 3 [pid 5115] <... openat resumed>) = 3 [pid 5114] <... openat resumed>) = 3 [pid 5115] socketpair(AF_UNIX, SOCK_STREAM, 0, [4, 5]) = 0 [pid 5115] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5113] <... bpf resumed>) = 21 [pid 5116] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5115] <... socketpair resumed>[6, 7]) = 0 [pid 5114] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5115] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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) = 8 [pid 5114] <... socketpair resumed>[4, 5]) = 0 [pid 5116] <... socketpair resumed>[4, 5]) = 0 [pid 5115] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5116] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5115] <... bpf resumed>) = 9 [pid 5114] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5113] perf_event_open( [pid 5116] <... socketpair resumed>[6, 7]) = 0 [pid 5115] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5116] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5114] <... socketpair resumed>[6, 7]) = 0 [pid 5116] <... bpf resumed>) = 8 [pid 5115] <... bpf resumed>) = 10 [pid 5114] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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) = 8 [pid 5116] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5115] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5114] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5116] <... bpf resumed>) = 9 [pid 5115] <... bpf resumed>) = 11 [pid 5115] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5116] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5114] <... bpf resumed>) = 9 [pid 5113] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5112] +++ exited with 0 +++ [pid 5115] <... bpf resumed>) = 12 [pid 5116] <... bpf resumed>) = 10 [pid 5114] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5113] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5115] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5116] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16) = 11 [pid 5115] <... bpf resumed>) = 13 [pid 5116] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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) = 12 [pid 5113] <... bpf resumed>) = 23 [pid 5096] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5112, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5116] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115) = 13 [pid 5115] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5116] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5114] <... bpf resumed>) = 10 [pid 5113] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5096] restart_syscall(<... resuming interrupted clone ...> [pid 5116] <... bpf resumed>) = 14 [pid 5115] <... bpf resumed>) = 14 [pid 5116] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5115] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5114] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5113] <... openat resumed>) = 24 [pid 5096] <... restart_syscall resumed>) = 0 [pid 5116] <... socketpair resumed>[15, 16]) = 0 [pid 5115] <... socketpair resumed>[15, 16]) = 0 [pid 5114] <... bpf resumed>) = 11 [pid 5113] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5116] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5115] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5114] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5113] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5115] <... openat resumed>) = -1 EEXIST (File exists) [pid 5114] <... bpf resumed>) = 12 [pid 5113] perf_event_open( [pid 5116] <... openat resumed>) = -1 EEXIST (File exists) [pid 5115] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5114] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5113] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5096] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5116] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5115] <... bpf resumed> => 6}, 8) = 0 [pid 5114] <... bpf resumed>) = 13 [pid 5116] <... bpf resumed> => 6}, 8) = 0 [pid 5115] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5116] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4) = 17 [pid 5115] <... bpf resumed>) = 17 [pid 5114] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5116] perf_event_open( [pid 5115] perf_event_open( [pid 5114] <... bpf resumed>) = 14 [pid 5113] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72./strace-static-x86_64: Process 5117 attached [pid 5116] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5115] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5117] set_robust_list(0x555586eaa660, 24 [pid 5116] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5115] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5114] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5096] <... clone resumed>, child_tidptr=0x555586eaa650) = 5117 [pid 5117] <... set_robust_list resumed>) = 0 [pid 5116] <... socketpair resumed>[19, 20]) = 0 [pid 5115] <... socketpair resumed>[19, 20]) = 0 [pid 5113] <... bpf resumed>) = 26 [pid 5113] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5117] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5116] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5117] <... prctl resumed>) = 0 [pid 5115] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5113] <... bpf resumed>) = 27 [pid 5117] setpgid(0, 0 [pid 5116] <... bpf resumed>) = 21 [pid 5114] <... socketpair resumed>[15, 16]) = 0 [pid 5117] <... setpgid resumed>) = 0 [pid 5115] <... bpf resumed>) = 21 [pid 5113] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5116] perf_event_open( [pid 5115] perf_event_open( [pid 5114] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5113] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5117] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5116] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5115] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5114] <... openat resumed>) = -1 EEXIST (File exists) [pid 5113] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5114] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5113] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 961 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 tot"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5117] write(3, "1000", 4 [pid 5116] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5115] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5114] <... bpf resumed> => 6}, 8) = 0 [pid 5117] <... write resumed>) = 4 [pid 5116] <... bpf resumed>) = 23 [pid 5114] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5113] <... bpf resumed>) = 28 [pid 5117] close(3 [pid 5116] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5115] <... bpf resumed>) = 23 [pid 5114] <... bpf resumed>) = 17 [pid 5113] close(28 [pid 5117] <... close resumed>) = 0 [pid 5116] <... openat resumed>) = 24 [pid 5115] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5114] perf_event_open( [pid 5113] <... close resumed>) = 0 [pid 5117] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000) = 3 [pid 5117] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5114] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5117] <... socketpair resumed>[4, 5]) = 0 [pid 5113] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5117] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5116] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5115] <... openat resumed>) = 24 [pid 5114] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5113] <... socketpair resumed>[28, 29]) = 0 [pid 5117] <... socketpair resumed>[6, 7]) = 0 [pid 5117] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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) = 8 [pid 5116] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5115] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5114] <... socketpair resumed>[19, 20]) = 0 [pid 5113] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5117] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5116] perf_event_open( [pid 5115] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5114] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5113] <... bpf resumed>) = 30 [pid 5117] <... bpf resumed>) = 9 [pid 5116] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5115] perf_event_open( [pid 5114] <... bpf resumed>) = 21 [pid 5113] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5117] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5116] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5115] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5114] perf_event_open( [pid 5113] <... bpf resumed>) = 0 [pid 5117] <... bpf resumed>) = 10 [pid 5116] <... bpf resumed>) = 26 [pid 5115] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5114] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5113] exit_group(0 [pid 5117] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16) = 11 [pid 5115] <... bpf resumed>) = 26 [pid 5114] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5117] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5116] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5114] <... bpf resumed>) = 23 [pid 5113] <... exit_group resumed>) = ? [pid 5117] <... bpf resumed>) = 12 [pid 5116] <... bpf resumed>) = 27 [pid 5114] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5117] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5115] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5114] <... openat resumed>) = 24 [pid 5117] <... bpf resumed>) = 13 [pid 5116] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5115] <... bpf resumed>) = 27 [pid 5117] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5116] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5114] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5117] <... bpf resumed>) = 14 [pid 5116] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5115] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5114] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5113] +++ exited with 0 +++ [pid 5116] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5115] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5114] perf_event_open( [pid 5116] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 819 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 tot"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5115] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5114] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5117] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5116] <... bpf resumed>) = 28 [pid 5116] close(28 [pid 5115] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5116] <... close resumed>) = 0 [pid 5115] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 966 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 tot"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5114] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5113, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5117] <... socketpair resumed>[15, 16]) = 0 [pid 5116] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5115] <... bpf resumed>) = 28 [pid 5117] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5116] <... socketpair resumed>[28, 29]) = 0 [pid 5114] <... bpf resumed>) = 26 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5117] <... openat resumed>) = -1 EEXIST (File exists) [pid 5116] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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) = 30 [pid 5116] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32) = 0 [pid 5115] close(28) = 0 [pid 5117] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5116] exit_group(0 [pid 5115] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5117] <... bpf resumed> => 6}, 8) = 0 [pid 5115] <... socketpair resumed>[28, 29]) = 0 ./strace-static-x86_64: Process 5118 attached [pid 5116] <... exit_group resumed>) = ? [pid 5115] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5114] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5118] set_robust_list(0x555586eaa660, 24 [pid 5117] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5089] <... clone resumed>, child_tidptr=0x555586eaa650) = 5118 [pid 5117] <... bpf resumed>) = 17 [pid 5118] <... set_robust_list resumed>) = 0 [pid 5117] perf_event_open( [pid 5115] <... bpf resumed>) = 30 [pid 5114] <... bpf resumed>) = 27 [pid 5118] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5117] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5115] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5118] <... prctl resumed>) = 0 [pid 5117] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5115] <... bpf resumed>) = 0 [pid 5118] setpgid(0, 0 [pid 5115] exit_group(0 [pid 5117] <... socketpair resumed>[19, 20]) = 0 [pid 5117] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5118] <... setpgid resumed>) = 0 [pid 5116] +++ exited with 0 +++ [pid 5115] <... exit_group resumed>) = ? [pid 5114] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5118] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5117] <... bpf resumed>) = 21 [pid 5118] <... openat resumed>) = 3 [pid 5114] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5114] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5118] write(3, "1000", 4 [pid 5114] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 864 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 tot"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5118] <... write resumed>) = 4 [pid 5117] perf_event_open( [pid 5115] +++ exited with 0 +++ [pid 5114] <... bpf resumed>) = 28 [pid 5094] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5116, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5118] close(3) = 0 [pid 5118] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5115, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5094] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5118] <... openat resumed>) = 3 [pid 5114] close(28 [pid 5118] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5114] <... close resumed>) = 0 [pid 5118] <... socketpair resumed>[4, 5]) = 0 [pid 5118] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5114] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5117] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5118] <... socketpair resumed>[6, 7]) = 0 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5117] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5118] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5114] <... socketpair resumed>[28, 29]) = 0 ./strace-static-x86_64: Process 5119 attached [pid 5118] <... bpf resumed>) = 8 [pid 5114] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5119] set_robust_list(0x555586eaa660, 24 [pid 5118] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5114] <... bpf resumed>) = 30 ./strace-static-x86_64: Process 5120 attached [pid 5119] <... set_robust_list resumed>) = 0 [pid 5118] <... bpf resumed>) = 9 [pid 5117] <... bpf resumed>) = 23 [pid 5114] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5090] <... clone resumed>, child_tidptr=0x555586eaa650) = 5119 [pid 5120] set_robust_list(0x555586eaa660, 24 [pid 5119] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5118] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5114] <... bpf resumed>) = 0 [pid 5120] <... set_robust_list resumed>) = 0 [pid 5119] <... prctl resumed>) = 0 [pid 5118] <... bpf resumed>) = 10 [pid 5117] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5114] exit_group(0 [pid 5094] <... clone resumed>, child_tidptr=0x555586eaa650) = 5120 [pid 5120] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5119] setpgid(0, 0 [pid 5120] <... prctl resumed>) = 0 [pid 5119] <... setpgid resumed>) = 0 [pid 5120] setpgid(0, 0 [pid 5119] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5117] <... openat resumed>) = 24 [pid 5114] <... exit_group resumed>) = ? [pid 5117] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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) = -1 EINVAL (Invalid argument) [pid 5117] perf_event_open( [pid 5120] <... setpgid resumed>) = 0 [pid 5119] <... openat resumed>) = 3 [pid 5118] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5117] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5120] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5119] write(3, "1000", 4 [pid 5118] <... bpf resumed>) = 11 [pid 5119] <... write resumed>) = 4 [pid 5118] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5117] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5120] <... openat resumed>) = 3 [pid 5119] close(3 [pid 5118] <... bpf resumed>) = 12 [pid 5120] write(3, "1000", 4 [pid 5119] <... close resumed>) = 0 [pid 5117] <... bpf resumed>) = 26 [pid 5120] <... write resumed>) = 4 [pid 5119] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5118] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5120] close(3 [pid 5119] <... openat resumed>) = 3 [pid 5117] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5120] <... close resumed>) = 0 [pid 5119] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5118] <... bpf resumed>) = 13 [pid 5114] +++ exited with 0 +++ [pid 5120] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5119] <... socketpair resumed>[4, 5]) = 0 [pid 5118] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5120] <... openat resumed>) = 3 [pid 5119] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5118] <... bpf resumed>) = 14 [pid 5117] <... bpf resumed>) = 27 [pid 5120] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5119] <... socketpair resumed>[6, 7]) = 0 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5114, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5120] <... socketpair resumed>[4, 5]) = 0 [pid 5119] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5120] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5119] <... bpf resumed>) = 8 [pid 5120] <... socketpair resumed>[6, 7]) = 0 [pid 5119] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5118] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5120] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5119] <... bpf resumed>) = 9 [pid 5117] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5120] <... bpf resumed>) = 8 [pid 5118] <... socketpair resumed>[15, 16]) = 0 [pid 5120] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5119] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5118] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5120] <... bpf resumed>) = 9 [pid 5119] <... bpf resumed>) = 10 [pid 5118] <... openat resumed>) = -1 EEXIST (File exists) [pid 5117] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5120] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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) = 10 [pid 5118] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5117] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5119] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5118] <... bpf resumed> => 6}, 8) = 0 [pid 5117] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5120] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5119] <... bpf resumed>) = 11 [pid 5118] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5120] <... bpf resumed>) = 11 [pid 5119] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5118] <... bpf resumed>) = 17 [pid 5120] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5119] <... bpf resumed>) = 12 [pid 5118] perf_event_open( [pid 5117] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 961 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 tot"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72./strace-static-x86_64: Process 5121 attached [pid 5120] <... bpf resumed>) = 12 [pid 5119] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5118] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5093] <... clone resumed>, child_tidptr=0x555586eaa650) = 5121 [pid 5121] set_robust_list(0x555586eaa660, 24 [pid 5120] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5119] <... bpf resumed>) = 13 [pid 5118] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5121] <... set_robust_list resumed>) = 0 [pid 5120] <... bpf resumed>) = 13 [pid 5119] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5118] <... socketpair resumed>[19, 20]) = 0 [pid 5121] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5120] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5119] <... bpf resumed>) = 14 [pid 5118] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5117] <... bpf resumed>) = 28 [pid 5121] <... prctl resumed>) = 0 [pid 5120] <... bpf resumed>) = 14 [pid 5117] close(28 [pid 5121] setpgid(0, 0 [pid 5120] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5118] <... bpf resumed>) = 21 [pid 5117] <... close resumed>) = 0 [pid 5121] <... setpgid resumed>) = 0 [pid 5120] <... socketpair resumed>[15, 16]) = 0 [pid 5117] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5120] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5119] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5118] perf_event_open( [pid 5117] <... socketpair resumed>[28, 29]) = 0 [pid 5121] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5120] <... openat resumed>) = -1 EEXIST (File exists) [pid 5119] <... socketpair resumed>[15, 16]) = 0 [pid 5121] <... openat resumed>) = 3 [pid 5120] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5118] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5117] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5121] write(3, "1000", 4 [pid 5120] <... bpf resumed> => 6}, 8) = 0 [pid 5118] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5121] <... write resumed>) = 4 [pid 5120] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5117] <... bpf resumed>) = 30 [pid 5121] close(3 [pid 5120] <... bpf resumed>) = 17 [pid 5119] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5117] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5121] <... close resumed>) = 0 [pid 5119] <... openat resumed>) = -1 EEXIST (File exists) [pid 5118] <... bpf resumed>) = 23 [pid 5119] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 => 6}, 8) = 0 [pid 5120] perf_event_open( [pid 5119] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5121] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5120] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5119] <... bpf resumed>) = 17 [pid 5118] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5117] <... bpf resumed>) = 0 [pid 5121] <... openat resumed>) = 3 [pid 5119] perf_event_open( [pid 5121] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5119] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5117] exit_group(0 [pid 5121] <... socketpair resumed>[4, 5]) = 0 [pid 5119] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5120] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5119] <... socketpair resumed>[19, 20]) = 0 [pid 5117] <... exit_group resumed>) = ? [pid 5121] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5120] <... socketpair resumed>[19, 20]) = 0 [pid 5119] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5118] <... openat resumed>) = 24 [pid 5121] <... socketpair resumed>[6, 7]) = 0 [pid 5120] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5119] <... bpf resumed>) = 21 [pid 5121] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5119] perf_event_open( [pid 5121] <... bpf resumed>) = 8 [pid 5120] <... bpf resumed>) = 21 [pid 5118] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5120] perf_event_open( [pid 5121] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5120] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5119] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5118] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5121] <... bpf resumed>) = 9 [pid 5121] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5119] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5121] <... bpf resumed>) = 10 [pid 5120] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5119] <... bpf resumed>) = 23 [pid 5118] perf_event_open( [pid 5117] +++ exited with 0 +++ [pid 5119] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5121] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5119] <... openat resumed>) = 24 [pid 5121] <... bpf resumed>) = 11 [pid 5118] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5096] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5117, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5121] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5119] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5121] <... bpf resumed>) = 12 [pid 5119] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5121] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5120] <... bpf resumed>) = 23 [pid 5119] perf_event_open( [pid 5121] <... bpf resumed>) = 13 [pid 5120] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5119] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5118] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5121] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5119] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5121] <... bpf resumed>) = 14 [pid 5120] <... openat resumed>) = 24 [pid 5119] <... bpf resumed>) = 26 [pid 5118] <... bpf resumed>) = 26 [pid 5121] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [15, 16]) = 0 [pid 5120] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5119] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5118] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5096] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5121] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000) = -1 EEXIST (File exists) [pid 5120] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5119] <... bpf resumed>) = 27 [pid 5118] <... bpf resumed>) = 27 ./strace-static-x86_64: Process 5122 attached [pid 5121] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5120] perf_event_open( [pid 5119] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5122] set_robust_list(0x555586eaa660, 24 [pid 5121] <... bpf resumed> => 6}, 8) = 0 [pid 5120] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5119] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5118] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5096] <... clone resumed>, child_tidptr=0x555586eaa650) = 5122 [pid 5122] <... set_robust_list resumed>) = 0 [pid 5121] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5120] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5119] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5122] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5121] <... bpf resumed>) = 17 [pid 5118] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5122] <... prctl resumed>) = 0 [pid 5121] perf_event_open( [pid 5120] <... bpf resumed>) = 26 [pid 5119] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5118] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5122] setpgid(0, 0 [pid 5121] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5120] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5119] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 896 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 tot"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5122] <... setpgid resumed>) = 0 [pid 5121] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5120] <... bpf resumed>) = 27 [pid 5118] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5122] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5121] <... socketpair resumed>[19, 20]) = 0 [pid 5118] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1331 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5122] <... openat resumed>) = 3 [pid 5121] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5120] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5119] <... bpf resumed>) = 28 [pid 5122] write(3, "1000", 4 [pid 5120] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5119] close(28 [pid 5118] <... bpf resumed>) = 28 [pid 5122] <... write resumed>) = 4 [pid 5120] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5122] close(3 [pid 5121] <... bpf resumed>) = 21 [pid 5120] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5119] <... close resumed>) = 0 [pid 5118] close(28 [pid 5122] <... close resumed>) = 0 [pid 5122] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000) = 3 [pid 5122] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5120] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1289 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5122] <... socketpair resumed>[4, 5]) = 0 [pid 5121] perf_event_open( [pid 5120] <... bpf resumed>) = 28 [pid 5119] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5118] <... close resumed>) = 0 [pid 5122] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5121] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5120] close(28 [pid 5119] <... socketpair resumed>[28, 29]) = 0 [pid 5118] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5122] <... socketpair resumed>[6, 7]) = 0 [pid 5121] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5120] <... close resumed>) = 0 [pid 5118] <... socketpair resumed>[28, 29]) = 0 [pid 5122] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5119] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5121] <... bpf resumed>) = 23 [pid 5120] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5122] <... bpf resumed>) = 8 [pid 5119] <... bpf resumed>) = 30 [pid 5118] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5122] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5119] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5118] <... bpf resumed>) = 30 [pid 5122] <... bpf resumed>) = 9 [pid 5121] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5120] <... socketpair resumed>[28, 29]) = 0 [pid 5119] <... bpf resumed>) = 0 [pid 5118] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5122] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5121] <... openat resumed>) = 24 [pid 5120] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5119] exit_group(0 [pid 5118] <... bpf resumed>) = 0 [pid 5122] <... bpf resumed>) = 10 [pid 5121] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5119] <... exit_group resumed>) = ? [pid 5122] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5121] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5120] <... bpf resumed>) = 30 [pid 5118] exit_group(0 [pid 5120] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5118] <... exit_group resumed>) = ? [pid 5122] <... bpf resumed>) = 11 [pid 5121] perf_event_open( [pid 5120] <... bpf resumed>) = 0 [pid 5121] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5122] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5121] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5120] exit_group(0 [pid 5122] <... bpf resumed>) = 12 [pid 5122] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5121] <... bpf resumed>) = 26 [pid 5120] <... exit_group resumed>) = ? [pid 5122] <... bpf resumed>) = 13 [pid 5122] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5118] +++ exited with 0 +++ [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5118, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5122] <... bpf resumed>) = 14 [pid 5121] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5119] +++ exited with 0 +++ [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5119, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5121] <... bpf resumed>) = 27 [pid 5090] restart_syscall(<... resuming interrupted clone ...> [pid 5122] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5121] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5090] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 5123 attached [pid 5122] <... socketpair resumed>[15, 16]) = 0 [pid 5121] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5089] <... clone resumed>, child_tidptr=0x555586eaa650) = 5123 [pid 5120] +++ exited with 0 +++ [pid 5123] set_robust_list(0x555586eaa660, 24 [pid 5122] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5121] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5094] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5120, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5123] <... set_robust_list resumed>) = 0 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5123] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5122] <... openat resumed>) = -1 EEXIST (File exists) [pid 5121] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5123] <... prctl resumed>) = 0 [pid 5094] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5124 attached ./strace-static-x86_64: Process 5125 attached [pid 5123] setpgid(0, 0 [pid 5122] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5125] set_robust_list(0x555586eaa660, 24 [pid 5124] set_robust_list(0x555586eaa660, 24 [pid 5123] <... setpgid resumed>) = 0 [pid 5121] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1039 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5094] <... clone resumed>, child_tidptr=0x555586eaa650) = 5124 [pid 5125] <... set_robust_list resumed>) = 0 [pid 5124] <... set_robust_list resumed>) = 0 [pid 5123] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5122] <... bpf resumed> => 6}, 8) = 0 [pid 5090] <... clone resumed>, child_tidptr=0x555586eaa650) = 5125 [pid 5122] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5124] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5125] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5122] <... bpf resumed>) = 17 [pid 5122] perf_event_open( [pid 5125] <... prctl resumed>) = 0 [pid 5124] <... prctl resumed>) = 0 [pid 5123] <... openat resumed>) = 3 [pid 5122] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5125] setpgid(0, 0 [pid 5122] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5124] setpgid(0, 0 [pid 5125] <... setpgid resumed>) = 0 [pid 5124] <... setpgid resumed>) = 0 [pid 5123] write(3, "1000", 4 [pid 5122] <... socketpair resumed>[19, 20]) = 0 [pid 5121] <... bpf resumed>) = 28 [pid 5123] <... write resumed>) = 4 [pid 5122] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5125] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5124] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5123] close(3 [pid 5121] close(28 [pid 5125] <... openat resumed>) = 3 [pid 5124] <... openat resumed>) = 3 [pid 5123] <... close resumed>) = 0 [pid 5121] <... close resumed>) = 0 [pid 5122] <... bpf resumed>) = 21 [pid 5122] perf_event_open( [pid 5125] write(3, "1000", 4 [pid 5124] write(3, "1000", 4 [pid 5123] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5122] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5121] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5125] <... write resumed>) = 4 [pid 5124] <... write resumed>) = 4 [pid 5123] <... openat resumed>) = 3 [pid 5122] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5121] <... socketpair resumed>[28, 29]) = 0 [pid 5125] close(3 [pid 5124] close(3 [pid 5123] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5121] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5125] <... close resumed>) = 0 [pid 5124] <... close resumed>) = 0 [pid 5123] <... socketpair resumed>[4, 5]) = 0 [pid 5122] <... bpf resumed>) = 23 [pid 5121] <... bpf resumed>) = 30 [pid 5125] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5121] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5124] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5125] <... openat resumed>) = 3 [pid 5121] <... bpf resumed>) = 0 [pid 5121] exit_group(0) = ? [pid 5125] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5124] <... openat resumed>) = 3 [pid 5123] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5122] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5125] <... socketpair resumed>[4, 5]) = 0 [pid 5124] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5123] <... socketpair resumed>[6, 7]) = 0 [pid 5123] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5125] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5123] <... bpf resumed>) = 8 [pid 5125] <... socketpair resumed>[6, 7]) = 0 [pid 5123] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5122] <... openat resumed>) = 24 [pid 5125] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5124] <... socketpair resumed>[4, 5]) = 0 [pid 5123] <... bpf resumed>) = 9 [pid 5125] <... bpf resumed>) = 8 [pid 5124] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5123] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5122] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5125] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5124] <... socketpair resumed>[6, 7]) = 0 [pid 5123] <... bpf resumed>) = 10 [pid 5122] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5125] <... bpf resumed>) = 9 [pid 5122] perf_event_open( [pid 5123] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5124] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5125] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5124] <... bpf resumed>) = 8 [pid 5123] <... bpf resumed>) = 11 [pid 5124] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5123] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5125] <... bpf resumed>) = 10 [pid 5124] <... bpf resumed>) = 9 [pid 5123] <... bpf resumed>) = 12 [pid 5125] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5123] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5125] <... bpf resumed>) = 11 [pid 5124] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5123] <... bpf resumed>) = 13 [pid 5125] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5123] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5125] <... bpf resumed>) = 12 [pid 5124] <... bpf resumed>) = 10 [pid 5123] <... bpf resumed>) = 14 [pid 5122] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5125] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115) = 13 [pid 5121] +++ exited with 0 +++ [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5121, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5125] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5124] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5123] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5122] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5125] <... bpf resumed>) = 14 [pid 5124] <... bpf resumed>) = 11 [pid 5123] <... socketpair resumed>[15, 16]) = 0 [pid 5125] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [15, 16]) = 0 [pid 5125] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000) = -1 EEXIST (File exists) [pid 5125] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 => 6}, 8) = 0 [pid 5093] <... clone resumed>, child_tidptr=0x555586eaa650) = 5126 [pid 5125] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4) = 17 [pid 5125] perf_event_open({type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5125] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, ./strace-static-x86_64: Process 5126 attached [pid 5124] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5123] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5122] <... bpf resumed>) = 26 [pid 5126] set_robust_list(0x555586eaa660, 24) = 0 [pid 5125] <... socketpair resumed>[19, 20]) = 0 [pid 5124] <... bpf resumed>) = 12 [pid 5123] <... openat resumed>) = -1 EEXIST (File exists) [pid 5122] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5126] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5125] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5124] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5123] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5126] <... prctl resumed>) = 0 [pid 5125] <... bpf resumed>) = 21 [pid 5124] <... bpf resumed>) = 13 [pid 5123] <... bpf resumed> => 6}, 8) = 0 [pid 5122] <... bpf resumed>) = 27 [pid 5123] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5126] setpgid(0, 0 [pid 5124] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5126] <... setpgid resumed>) = 0 [pid 5125] perf_event_open( [pid 5123] <... bpf resumed>) = 17 [pid 5122] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5126] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5123] perf_event_open( [pid 5122] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5126] <... openat resumed>) = 3 [pid 5125] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5123] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5122] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5123] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5122] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5126] write(3, "1000", 4 [pid 5125] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5123] <... socketpair resumed>[19, 20]) = 0 [pid 5122] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 5106 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5126] <... write resumed>) = 4 [pid 5125] <... bpf resumed>) = 23 [pid 5124] <... bpf resumed>) = 14 [pid 5123] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5126] close(3 [pid 5125] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5122] <... bpf resumed>) = 28 [pid 5125] <... openat resumed>) = 24 [pid 5123] <... bpf resumed>) = 21 [pid 5126] <... close resumed>) = 0 [pid 5124] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5122] close(28 [pid 5125] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5122] <... close resumed>) = 0 [pid 5126] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5125] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5124] <... socketpair resumed>[15, 16]) = 0 [pid 5122] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5125] perf_event_open( [pid 5126] <... openat resumed>) = 3 [pid 5124] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5123] perf_event_open( [pid 5122] <... socketpair resumed>[28, 29]) = 0 [pid 5126] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5125] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5124] <... openat resumed>) = -1 EEXIST (File exists) [pid 5126] <... socketpair resumed>[4, 5]) = 0 [pid 5124] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5122] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5123] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5125] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5122] <... bpf resumed>) = 30 [pid 5126] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5124] <... bpf resumed> => 6}, 8) = 0 [pid 5123] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5126] <... socketpair resumed>[6, 7]) = 0 [pid 5125] <... bpf resumed>) = 26 [pid 5124] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5122] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5123] <... bpf resumed>) = 23 [pid 5126] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5124] <... bpf resumed>) = 17 [pid 5123] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5124] perf_event_open( [pid 5122] <... bpf resumed>) = 0 [pid 5123] <... openat resumed>) = 24 [pid 5122] exit_group(0 [pid 5124] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5126] <... bpf resumed>) = 8 [pid 5123] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5124] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5126] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5125] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5123] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5122] <... exit_group resumed>) = ? [pid 5126] <... bpf resumed>) = 9 [pid 5124] <... socketpair resumed>[19, 20]) = 0 [pid 5123] perf_event_open( [pid 5125] <... bpf resumed>) = 27 [pid 5126] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5125] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5124] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5125] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5123] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5123] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5126] <... bpf resumed>) = 10 [pid 5123] <... bpf resumed>) = 26 [pid 5125] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5123] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5126] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5125] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5124] <... bpf resumed>) = 21 [pid 5122] +++ exited with 0 +++ [pid 5126] <... bpf resumed>) = 11 [pid 5125] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 957 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 tot"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5124] perf_event_open( [pid 5123] <... bpf resumed>) = 27 [pid 5096] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5122, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5124] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5126] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5125] <... bpf resumed>) = 28 [pid 5124] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5123] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5126] <... bpf resumed>) = 12 [pid 5125] close(28 [pid 5096] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5126] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5125] <... close resumed>) = 0 [pid 5124] <... bpf resumed>) = 23 [pid 5123] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5096] <... clone resumed>, child_tidptr=0x555586eaa650) = 5127 ./strace-static-x86_64: Process 5127 attached [pid 5126] <... bpf resumed>) = 13 [pid 5125] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5124] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5123] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5127] set_robust_list(0x555586eaa660, 24 [pid 5126] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5123] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5127] <... set_robust_list resumed>) = 0 [pid 5125] <... socketpair resumed>[28, 29]) = 0 [pid 5124] <... openat resumed>) = 24 [pid 5123] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1019 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5127] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5126] <... bpf resumed>) = 14 [pid 5125] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5127] <... prctl resumed>) = 0 [pid 5126] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5124] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5127] setpgid(0, 0 [pid 5126] <... socketpair resumed>[15, 16]) = 0 [pid 5125] <... bpf resumed>) = 30 [pid 5124] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5123] <... bpf resumed>) = 28 [pid 5127] <... setpgid resumed>) = 0 [pid 5126] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5125] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5124] perf_event_open( [pid 5127] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5126] <... openat resumed>) = -1 EEXIST (File exists) [pid 5125] <... bpf resumed>) = 0 [pid 5123] close(28 [pid 5126] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5123] <... close resumed>) = 0 [pid 5126] <... bpf resumed> => 6}, 8) = 0 [pid 5125] exit_group(0 [pid 5124] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5123] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5127] <... openat resumed>) = 3 [pid 5126] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5125] <... exit_group resumed>) = ? [pid 5124] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5123] <... socketpair resumed>[28, 29]) = 0 [pid 5127] write(3, "1000", 4 [pid 5126] <... bpf resumed>) = 17 [pid 5127] <... write resumed>) = 4 [pid 5127] close(3) = 0 [pid 5126] perf_event_open( [pid 5127] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000) = 3 [pid 5126] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5126] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5127] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5126] <... socketpair resumed>[19, 20]) = 0 [pid 5127] <... socketpair resumed>[4, 5]) = 0 [pid 5126] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5127] socketpair(AF_UNIX, SOCK_STREAM, 0, [6, 7]) = 0 [pid 5124] <... bpf resumed>) = 26 [pid 5123] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5127] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5126] <... bpf resumed>) = 21 [pid 5123] <... bpf resumed>) = 30 [pid 5127] <... bpf resumed>) = 8 [pid 5127] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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) = 9 [pid 5126] perf_event_open({type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5123] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5127] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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) = 10 [pid 5126] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5123] <... bpf resumed>) = 0 [pid 5124] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5126] <... bpf resumed>) = 23 [pid 5125] +++ exited with 0 +++ [pid 5123] exit_group(0 [pid 5127] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5126] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5125, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5127] <... bpf resumed>) = 11 [pid 5126] <... openat resumed>) = 24 [pid 5124] <... bpf resumed>) = 27 [pid 5123] <... exit_group resumed>) = ? [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5127] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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) = 12 [pid 5126] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5124] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777./strace-static-x86_64: Process 5128 attached [pid 5127] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5128] set_robust_list(0x555586eaa660, 24 [pid 5124] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5128] <... set_robust_list resumed>) = 0 [pid 5128] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5127] <... bpf resumed>) = 13 [pid 5126] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5124] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5128] <... prctl resumed>) = 0 [pid 5127] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5126] perf_event_open( [pid 5124] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5128] setpgid(0, 0 [pid 5127] <... bpf resumed>) = 14 [pid 5126] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5124] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 2862 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5090] <... clone resumed>, child_tidptr=0x555586eaa650) = 5128 [pid 5128] <... setpgid resumed>) = 0 [pid 5126] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5128] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5127] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5126] <... bpf resumed>) = 26 [pid 5124] <... bpf resumed>) = 28 [pid 5128] <... openat resumed>) = 3 [pid 5127] <... socketpair resumed>[15, 16]) = 0 [pid 5127] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5128] write(3, "1000", 4 [pid 5127] <... openat resumed>) = -1 EEXIST (File exists) [pid 5127] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 => 6}, 8) = 0 [pid 5128] <... write resumed>) = 4 [pid 5128] close(3 [pid 5127] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5124] close(28 [pid 5128] <... close resumed>) = 0 [pid 5127] <... bpf resumed>) = 17 [pid 5127] perf_event_open( [pid 5126] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5128] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5127] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5124] <... close resumed>) = 0 [pid 5123] +++ exited with 0 +++ [pid 5127] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5126] <... bpf resumed>) = 27 [pid 5124] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5127] <... socketpair resumed>[19, 20]) = 0 [pid 5126] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5123, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5127] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5126] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5128] <... openat resumed>) = 3 [pid 5126] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5124] <... socketpair resumed>[28, 29]) = 0 [pid 5128] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5126] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5124] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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./strace-static-x86_64: Process 5129 attached [pid 5128] <... socketpair resumed>[4, 5]) = 0 [pid 5127] <... bpf resumed>) = 21 [pid 5126] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 988 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 tot"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5124] <... bpf resumed>) = 30 [pid 5129] set_robust_list(0x555586eaa660, 24 [pid 5128] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5127] perf_event_open( [pid 5124] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5129] <... set_robust_list resumed>) = 0 [pid 5128] <... socketpair resumed>[6, 7]) = 0 [pid 5126] <... bpf resumed>) = 28 [pid 5124] <... bpf resumed>) = 0 [pid 5089] <... clone resumed>, child_tidptr=0x555586eaa650) = 5129 [pid 5128] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5127] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5124] exit_group(0 [pid 5129] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5128] <... bpf resumed>) = 8 [pid 5126] close(28 [pid 5129] <... prctl resumed>) = 0 [pid 5129] setpgid(0, 0 [pid 5128] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5127] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5126] <... close resumed>) = 0 [pid 5124] <... exit_group resumed>) = ? [pid 5129] <... setpgid resumed>) = 0 [pid 5128] <... bpf resumed>) = 9 [pid 5127] <... bpf resumed>) = 23 [pid 5126] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5129] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5128] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5126] <... socketpair resumed>[28, 29]) = 0 [pid 5124] +++ exited with 0 +++ [pid 5129] <... openat resumed>) = 3 [pid 5127] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5129] write(3, "1000", 4 [pid 5094] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5124, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5129] <... write resumed>) = 4 [pid 5094] restart_syscall(<... resuming interrupted clone ...> [pid 5129] close(3) = 0 [pid 5126] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5129] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5094] <... restart_syscall resumed>) = 0 [pid 5126] <... bpf resumed>) = 30 [pid 5128] <... bpf resumed>) = 10 [pid 5126] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32) = 0 [pid 5094] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5129] <... openat resumed>) = 3 [pid 5128] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5127] <... openat resumed>) = 24 ./strace-static-x86_64: Process 5130 attached [pid 5129] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5128] <... bpf resumed>) = 11 [pid 5127] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5126] exit_group(0 [pid 5130] set_robust_list(0x555586eaa660, 24 [pid 5129] <... socketpair resumed>[4, 5]) = 0 [pid 5128] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5130] <... set_robust_list resumed>) = 0 [pid 5129] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5127] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5126] <... exit_group resumed>) = ? [pid 5094] <... clone resumed>, child_tidptr=0x555586eaa650) = 5130 [pid 5130] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5129] <... socketpair resumed>[6, 7]) = 0 [pid 5128] <... bpf resumed>) = 12 [pid 5127] perf_event_open( [pid 5130] <... prctl resumed>) = 0 [pid 5129] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5128] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5127] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5130] setpgid(0, 0 [pid 5129] <... bpf resumed>) = 8 [pid 5128] <... bpf resumed>) = 13 [pid 5130] <... setpgid resumed>) = 0 [pid 5128] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5129] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5128] <... bpf resumed>) = 14 [pid 5127] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5126] +++ exited with 0 +++ [pid 5130] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5129] <... bpf resumed>) = 9 [pid 5130] <... openat resumed>) = 3 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5126, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5093] restart_syscall(<... resuming interrupted clone ...> [pid 5130] write(3, "1000", 4) = 4 [pid 5128] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5093] <... restart_syscall resumed>) = 0 [pid 5130] close(3) = 0 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5130] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5129] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5128] <... socketpair resumed>[15, 16]) = 0 [pid 5127] <... bpf resumed>) = 26 ./strace-static-x86_64: Process 5131 attached [pid 5130] <... openat resumed>) = 3 [pid 5131] set_robust_list(0x555586eaa660, 24 [pid 5128] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5130] socketpair(AF_UNIX, SOCK_STREAM, 0, [4, 5]) = 0 [pid 5129] <... bpf resumed>) = 10 [pid 5128] <... openat resumed>) = -1 EEXIST (File exists) [pid 5127] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5131] <... set_robust_list resumed>) = 0 [pid 5130] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5128] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5131] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5130] <... socketpair resumed>[6, 7]) = 0 [pid 5129] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5128] <... bpf resumed> => 6}, 8) = 0 [pid 5131] <... prctl resumed>) = 0 [pid 5128] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5131] setpgid(0, 0 [pid 5130] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5128] <... bpf resumed>) = 17 [pid 5131] <... setpgid resumed>) = 0 [pid 5130] <... bpf resumed>) = 8 [pid 5129] <... bpf resumed>) = 11 [pid 5128] perf_event_open( [pid 5131] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5130] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5129] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5128] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5093] <... clone resumed>, child_tidptr=0x555586eaa650) = 5131 [pid 5127] <... bpf resumed>) = 27 [pid 5131] <... openat resumed>) = 3 [pid 5130] <... bpf resumed>) = 9 [pid 5131] write(3, "1000", 4 [pid 5130] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5129] <... bpf resumed>) = 12 [pid 5128] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5127] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5131] <... write resumed>) = 4 [pid 5129] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5128] <... socketpair resumed>[19, 20]) = 0 [pid 5127] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5131] close(3 [pid 5130] <... bpf resumed>) = 10 [pid 5129] <... bpf resumed>) = 13 [pid 5128] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5127] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5131] <... close resumed>) = 0 [pid 5130] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5129] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5128] <... bpf resumed>) = 21 [pid 5127] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5131] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000) = 3 [pid 5130] <... bpf resumed>) = 11 [pid 5129] <... bpf resumed>) = 14 [pid 5127] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 942 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 tot"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5130] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5131] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5130] <... bpf resumed>) = 12 [pid 5129] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5128] perf_event_open( [pid 5131] <... socketpair resumed>[4, 5]) = 0 [pid 5130] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5129] <... socketpair resumed>[15, 16]) = 0 [pid 5128] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5131] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5130] <... bpf resumed>) = 13 [pid 5128] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5131] <... socketpair resumed>[6, 7]) = 0 [pid 5130] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5129] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5128] <... bpf resumed>) = 23 [pid 5127] <... bpf resumed>) = 28 [pid 5131] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5130] <... bpf resumed>) = 14 [pid 5129] <... openat resumed>) = -1 EEXIST (File exists) [pid 5128] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5131] <... bpf resumed>) = 8 [pid 5127] close(28 [pid 5129] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5128] <... openat resumed>) = 24 [pid 5131] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5129] <... bpf resumed> => 6}, 8) = 0 [pid 5131] <... bpf resumed>) = 9 [pid 5130] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5129] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5128] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5127] <... close resumed>) = 0 [pid 5131] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5130] <... socketpair resumed>[15, 16]) = 0 [pid 5129] <... bpf resumed>) = 17 [pid 5128] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5129] perf_event_open( [pid 5127] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5130] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5129] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5128] perf_event_open( [pid 5127] <... socketpair resumed>[28, 29]) = 0 [pid 5131] <... bpf resumed>) = 10 [pid 5130] <... openat resumed>) = -1 EEXIST (File exists) [pid 5128] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5127] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5131] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5130] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5129] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5128] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5131] <... bpf resumed>) = 11 [pid 5130] <... bpf resumed> => 6}, 8) = 0 [pid 5129] <... socketpair resumed>[19, 20]) = 0 [pid 5128] <... bpf resumed>) = 26 [pid 5127] <... bpf resumed>) = 30 [pid 5131] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5130] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5129] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5131] <... bpf resumed>) = 12 [pid 5127] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5131] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5130] <... bpf resumed>) = 17 [pid 5129] <... bpf resumed>) = 21 [pid 5128] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5127] <... bpf resumed>) = 0 [pid 5131] <... bpf resumed>) = 13 [pid 5130] perf_event_open( [pid 5131] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5130] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5131] <... bpf resumed>) = 14 [pid 5130] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5129] perf_event_open( [pid 5128] <... bpf resumed>) = 27 [pid 5127] exit_group(0 [pid 5130] <... socketpair resumed>[19, 20]) = 0 [pid 5130] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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) = 21 [pid 5129] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5128] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5127] <... exit_group resumed>) = ? [pid 5129] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5131] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5128] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5131] <... socketpair resumed>[15, 16]) = 0 [pid 5130] perf_event_open( [pid 5129] <... bpf resumed>) = 23 [pid 5128] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5131] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5130] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5128] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5129] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5131] <... openat resumed>) = -1 EEXIST (File exists) [pid 5130] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5128] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 871 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 tot"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5131] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5130] <... bpf resumed>) = 23 [pid 5129] <... openat resumed>) = 24 [pid 5128] <... bpf resumed>) = 28 [pid 5131] <... bpf resumed> => 6}, 8) = 0 [pid 5130] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5131] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5130] <... openat resumed>) = 24 [pid 5129] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5131] <... bpf resumed>) = 17 [pid 5128] close(28 [pid 5131] perf_event_open( [pid 5130] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5128] <... close resumed>) = 0 [pid 5131] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5130] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5129] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5131] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5130] perf_event_open( [pid 5129] perf_event_open( [pid 5128] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5131] <... socketpair resumed>[19, 20]) = 0 [pid 5130] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5128] <... socketpair resumed>[28, 29]) = 0 [pid 5129] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5131] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5129] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5131] <... bpf resumed>) = 21 [pid 5130] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5128] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5130] <... bpf resumed>) = 26 [pid 5129] <... bpf resumed>) = 26 [pid 5128] <... bpf resumed>) = 30 [pid 5127] +++ exited with 0 +++ [pid 5131] perf_event_open( [pid 5128] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5096] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5127, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5131] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5129] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5128] <... bpf resumed>) = 0 [pid 5096] restart_syscall(<... resuming interrupted clone ...> [pid 5131] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5128] exit_group(0 [pid 5096] <... restart_syscall resumed>) = 0 [pid 5131] <... bpf resumed>) = 23 [pid 5130] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5128] <... exit_group resumed>) = ? [pid 5131] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5130] <... bpf resumed>) = 27 [pid 5129] <... bpf resumed>) = 27 [pid 5131] <... openat resumed>) = 24 [pid 5129] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5096] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5129] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) ./strace-static-x86_64: Process 5132 attached [pid 5131] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5130] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5129] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5128] +++ exited with 0 +++ [pid 5132] set_robust_list(0x555586eaa660, 24 [pid 5131] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5130] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5132] <... set_robust_list resumed>) = 0 [pid 5131] perf_event_open( [pid 5130] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5128, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5132] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5131] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5130] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5129] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5130] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 901 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 tot"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5132] <... prctl resumed>) = 0 [pid 5131] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5129] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1015 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5096] <... clone resumed>, child_tidptr=0x555586eaa650) = 5132 [pid 5132] setpgid(0, 0 [pid 5131] <... bpf resumed>) = 26 [pid 5130] <... bpf resumed>) = 28 [pid 5132] <... setpgid resumed>) = 0 [pid 5131] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5130] close(28 [pid 5132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5131] <... bpf resumed>) = 27 [pid 5129] <... bpf resumed>) = 28 [pid 5130] <... close resumed>) = 0 [pid 5130] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5132] <... openat resumed>) = 3 [pid 5130] <... socketpair resumed>[28, 29]) = 0 [pid 5129] close(28 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5129] <... close resumed>) = 0 [pid 5130] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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./strace-static-x86_64: Process 5133 attached [pid 5132] write(3, "1000", 4 [pid 5131] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5130] <... bpf resumed>) = 30 [pid 5129] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5133] set_robust_list(0x555586eaa660, 24 [pid 5132] <... write resumed>) = 4 [pid 5131] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5130] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5129] <... socketpair resumed>[28, 29]) = 0 [pid 5090] <... clone resumed>, child_tidptr=0x555586eaa650) = 5133 [pid 5133] <... set_robust_list resumed>) = 0 [pid 5132] close(3 [pid 5131] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5130] <... bpf resumed>) = 0 [pid 5132] <... close resumed>) = 0 [pid 5131] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5133] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5132] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5130] exit_group(0 [pid 5129] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5133] <... prctl resumed>) = 0 [pid 5132] <... openat resumed>) = 3 [pid 5131] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 939 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 tot"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5130] <... exit_group resumed>) = ? [pid 5133] setpgid(0, 0 [pid 5132] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5129] <... bpf resumed>) = 30 [pid 5133] <... setpgid resumed>) = 0 [pid 5129] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5133] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5129] <... bpf resumed>) = 0 [pid 5133] <... openat resumed>) = 3 [pid 5132] <... socketpair resumed>[4, 5]) = 0 [pid 5131] <... bpf resumed>) = 28 [pid 5129] exit_group(0 [pid 5132] socketpair(AF_UNIX, SOCK_STREAM, 0, [6, 7]) = 0 [pid 5132] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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) = 8 [pid 5131] close(28 [pid 5132] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5129] <... exit_group resumed>) = ? [pid 5133] write(3, "1000", 4 [pid 5132] <... bpf resumed>) = 9 [pid 5131] <... close resumed>) = 0 [pid 5133] <... write resumed>) = 4 [pid 5131] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5130] +++ exited with 0 +++ [pid 5133] close(3) = 0 [pid 5132] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5131] <... socketpair resumed>[28, 29]) = 0 [pid 5133] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000) = 3 [pid 5132] <... bpf resumed>) = 10 [pid 5131] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5094] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5130, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5133] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5131] <... bpf resumed>) = 30 [pid 5094] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5133] <... socketpair resumed>[4, 5]) = 0 [pid 5132] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5131] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5129] +++ exited with 0 +++ [pid 5133] socketpair(AF_UNIX, SOCK_STREAM, 0, ./strace-static-x86_64: Process 5134 attached [pid 5132] <... bpf resumed>) = 11 [pid 5131] <... bpf resumed>) = 0 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5129, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5134] set_robust_list(0x555586eaa660, 24 [pid 5133] <... socketpair resumed>[6, 7]) = 0 [pid 5132] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5131] exit_group(0 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5134] <... set_robust_list resumed>) = 0 [pid 5133] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5132] <... bpf resumed>) = 12 [pid 5131] <... exit_group resumed>) = ? [pid 5094] <... clone resumed>, child_tidptr=0x555586eaa650) = 5134 ./strace-static-x86_64: Process 5135 attached [pid 5134] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5133] <... bpf resumed>) = 8 [pid 5132] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5135] set_robust_list(0x555586eaa660, 24 [pid 5134] <... prctl resumed>) = 0 [pid 5132] <... bpf resumed>) = 13 [pid 5134] setpgid(0, 0 [pid 5133] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5132] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5135] <... set_robust_list resumed>) = 0 [pid 5134] <... setpgid resumed>) = 0 [pid 5133] <... bpf resumed>) = 9 [pid 5089] <... clone resumed>, child_tidptr=0x555586eaa650) = 5135 [pid 5135] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5132] <... bpf resumed>) = 14 [pid 5134] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5135] <... prctl resumed>) = 0 [pid 5135] setpgid(0, 0 [pid 5133] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5132] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5135] <... setpgid resumed>) = 0 [pid 5134] <... openat resumed>) = 3 [pid 5135] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5133] <... bpf resumed>) = 10 [pid 5132] <... socketpair resumed>[15, 16]) = 0 [pid 5134] write(3, "1000", 4 [pid 5133] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5135] <... openat resumed>) = 3 [pid 5134] <... write resumed>) = 4 [pid 5135] write(3, "1000", 4 [pid 5134] close(3 [pid 5135] <... write resumed>) = 4 [pid 5134] <... close resumed>) = 0 [pid 5135] close(3 [pid 5134] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5135] <... close resumed>) = 0 [pid 5133] <... bpf resumed>) = 11 [pid 5132] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5135] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5134] <... openat resumed>) = 3 [pid 5133] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5132] <... openat resumed>) = -1 EEXIST (File exists) [pid 5135] <... openat resumed>) = 3 [pid 5134] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5133] <... bpf resumed>) = 12 [pid 5135] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5134] <... socketpair resumed>[4, 5]) = 0 [pid 5133] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5132] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5135] <... socketpair resumed>[4, 5]) = 0 [pid 5135] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5134] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5133] <... bpf resumed>) = 13 [pid 5132] <... bpf resumed> => 6}, 8) = 0 [pid 5135] <... socketpair resumed>[6, 7]) = 0 [pid 5134] <... socketpair resumed>[6, 7]) = 0 [pid 5132] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5135] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5134] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5133] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5132] <... bpf resumed>) = 17 [pid 5135] <... bpf resumed>) = 8 [pid 5134] <... bpf resumed>) = 8 [pid 5135] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5134] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5133] <... bpf resumed>) = 14 [pid 5132] perf_event_open( [pid 5135] <... bpf resumed>) = 9 [pid 5134] <... bpf resumed>) = 9 [pid 5135] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5132] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5135] <... bpf resumed>) = 10 [pid 5134] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5132] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5134] <... bpf resumed>) = 10 [pid 5133] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5132] <... socketpair resumed>[19, 20]) = 0 [pid 5133] <... socketpair resumed>[15, 16]) = 0 [pid 5132] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5135] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5134] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5133] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5132] <... bpf resumed>) = 21 [pid 5135] <... bpf resumed>) = 11 [pid 5133] <... openat resumed>) = -1 EEXIST (File exists) [pid 5135] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5134] <... bpf resumed>) = 11 [pid 5133] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5135] <... bpf resumed>) = 12 [pid 5134] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5133] <... bpf resumed> => 6}, 8) = 0 [pid 5132] perf_event_open( [pid 5135] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5134] <... bpf resumed>) = 12 [pid 5133] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5135] <... bpf resumed>) = 13 [pid 5134] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5133] <... bpf resumed>) = 17 [pid 5135] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5134] <... bpf resumed>) = 13 [pid 5133] perf_event_open( [pid 5135] <... bpf resumed>) = 14 [pid 5134] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5133] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5134] <... bpf resumed>) = 14 [pid 5133] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [19, 20]) = 0 [pid 5135] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5133] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5135] <... socketpair resumed>[15, 16]) = 0 [pid 5134] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5133] <... bpf resumed>) = 21 [pid 5135] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5134] <... socketpair resumed>[15, 16]) = 0 [pid 5135] <... openat resumed>) = -1 EEXIST (File exists) [pid 5135] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5134] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5133] perf_event_open( [pid 5135] <... bpf resumed> => 6}, 8) = 0 [pid 5134] <... openat resumed>) = -1 EEXIST (File exists) [pid 5135] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5134] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5135] <... bpf resumed>) = 17 [pid 5134] <... bpf resumed> => 6}, 8) = 0 [pid 5135] perf_event_open( [pid 5134] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5135] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5134] <... bpf resumed>) = 17 [pid 5134] perf_event_open( [pid 5135] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5134] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5135] <... socketpair resumed>[19, 20]) = 0 [pid 5134] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5135] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5134] <... socketpair resumed>[19, 20]) = 0 [pid 5135] <... bpf resumed>) = 21 [pid 5134] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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) = 21 [pid 5135] perf_event_open( [pid 5134] perf_event_open( [pid 5135] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5133] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5132] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5131] +++ exited with 0 +++ [pid 5135] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5134] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5133] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5132] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5131, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5135] <... bpf resumed>) = 23 [pid 5134] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5133] <... bpf resumed>) = 23 [pid 5135] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5134] <... bpf resumed>) = 23 [pid 5133] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5132] <... bpf resumed>) = 23 [pid 5135] <... openat resumed>) = 24 [pid 5134] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5133] <... openat resumed>) = 24 [pid 5133] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5132] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5135] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5134] <... openat resumed>) = 24 [pid 5133] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5132] <... openat resumed>) = 24 [pid 5135] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5133] perf_event_open( [pid 5134] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5135] perf_event_open( [pid 5133] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5135] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5134] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5133] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5132] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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./strace-static-x86_64: Process 5136 attached [pid 5135] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5134] perf_event_open( [pid 5133] <... bpf resumed>) = 26 [pid 5132] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5136] set_robust_list(0x555586eaa660, 24) = 0 [pid 5134] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5133] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5132] perf_event_open( [pid 5093] <... clone resumed>, child_tidptr=0x555586eaa650) = 5136 [pid 5135] <... bpf resumed>) = 26 [pid 5134] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5135] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5132] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5136] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5135] <... bpf resumed>) = 27 [pid 5133] <... bpf resumed>) = 27 [pid 5135] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5136] <... prctl resumed>) = 0 [pid 5134] <... bpf resumed>) = 26 [pid 5133] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5132] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5135] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5136] setpgid(0, 0 [pid 5135] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5134] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5133] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5136] <... setpgid resumed>) = 0 [pid 5135] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5135] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1332 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5136] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5134] <... bpf resumed>) = 27 [pid 5133] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5136] <... openat resumed>) = 3 [pid 5134] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5133] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5132] <... bpf resumed>) = 26 [pid 5136] write(3, "1000", 4 [pid 5134] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5133] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1335 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5132] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5136] <... write resumed>) = 4 [pid 5135] <... bpf resumed>) = 28 [pid 5134] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5133] <... bpf resumed>) = 28 [pid 5136] close(3 [pid 5135] close(28 [pid 5136] <... close resumed>) = 0 [pid 5135] <... close resumed>) = 0 [pid 5134] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5133] close(28 [pid 5132] <... bpf resumed>) = 27 [pid 5136] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5135] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5134] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 2460 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5133] <... close resumed>) = 0 [pid 5136] <... openat resumed>) = 3 [pid 5135] <... socketpair resumed>[28, 29]) = 0 [pid 5133] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5132] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5136] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5135] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5133] <... socketpair resumed>[28, 29]) = 0 [pid 5132] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5136] <... socketpair resumed>[4, 5]) = 0 [pid 5135] <... bpf resumed>) = 30 [pid 5134] <... bpf resumed>) = 28 [pid 5133] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5132] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5135] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5136] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5135] <... bpf resumed>) = 0 [pid 5134] close(28 [pid 5133] <... bpf resumed>) = 30 [pid 5132] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5136] <... socketpair resumed>[6, 7]) = 0 [pid 5134] <... close resumed>) = 0 [pid 5133] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5132] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 2556 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5136] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5135] exit_group(0 [pid 5134] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5133] <... bpf resumed>) = 0 [pid 5132] <... bpf resumed>) = 28 [pid 5136] <... bpf resumed>) = 8 [pid 5135] <... exit_group resumed>) = ? [pid 5134] <... socketpair resumed>[28, 29]) = 0 [pid 5133] exit_group(0 [pid 5132] close(28 [pid 5136] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5134] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5133] <... exit_group resumed>) = ? [pid 5136] <... bpf resumed>) = 9 [pid 5132] <... close resumed>) = 0 [pid 5134] <... bpf resumed>) = 30 [pid 5132] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5136] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5134] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5136] <... bpf resumed>) = 10 [pid 5134] <... bpf resumed>) = 0 [pid 5132] <... socketpair resumed>[28, 29]) = 0 [pid 5134] exit_group(0 [pid 5132] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5136] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5135] +++ exited with 0 +++ [pid 5134] <... exit_group resumed>) = ? [pid 5133] +++ exited with 0 +++ [pid 5132] <... bpf resumed>) = 30 [pid 5136] <... bpf resumed>) = 11 [pid 5132] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5133, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5135, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5136] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5132] <... bpf resumed>) = 0 [pid 5132] exit_group(0 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5136] <... bpf resumed>) = 12 [pid 5134] +++ exited with 0 +++ [pid 5132] <... exit_group resumed>) = ? [pid 5136] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5094] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5134, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- ./strace-static-x86_64: Process 5137 attached [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5136] <... bpf resumed>) = 13 [pid 5136] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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) = 14 [pid 5089] <... clone resumed>, child_tidptr=0x555586eaa650) = 5137 [pid 5136] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, ./strace-static-x86_64: Process 5138 attached [pid 5137] set_robust_list(0x555586eaa660, 24 [pid 5090] <... clone resumed>, child_tidptr=0x555586eaa650) = 5138 [pid 5137] <... set_robust_list resumed>) = 0 [pid 5136] <... socketpair resumed>[15, 16]) = 0 [pid 5138] set_robust_list(0x555586eaa660, 24 [pid 5137] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5094] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5138] <... set_robust_list resumed>) = 0 [pid 5137] setpgid(0, 0 [pid 5136] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000./strace-static-x86_64: Process 5139 attached [pid 5138] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5139] set_robust_list(0x555586eaa660, 24 [pid 5137] <... setpgid resumed>) = 0 [pid 5136] <... openat resumed>) = -1 EEXIST (File exists) [pid 5094] <... clone resumed>, child_tidptr=0x555586eaa650) = 5139 [pid 5138] <... prctl resumed>) = 0 [pid 5139] <... set_robust_list resumed>) = 0 [pid 5137] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5136] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5139] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5138] setpgid(0, 0 [pid 5137] <... openat resumed>) = 3 [pid 5136] <... bpf resumed> => 6}, 8) = 0 [pid 5139] <... prctl resumed>) = 0 [pid 5139] setpgid(0, 0 [pid 5138] <... setpgid resumed>) = 0 [pid 5136] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5139] <... setpgid resumed>) = 0 [pid 5137] write(3, "1000", 4 [pid 5136] <... bpf resumed>) = 17 [pid 5139] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5137] <... write resumed>) = 4 [pid 5137] close(3 [pid 5136] perf_event_open( [pid 5139] <... openat resumed>) = 3 [pid 5138] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5137] <... close resumed>) = 0 [pid 5136] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5139] write(3, "1000", 4 [pid 5137] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5136] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5138] <... openat resumed>) = 3 [pid 5138] write(3, "1000", 4 [pid 5139] <... write resumed>) = 4 [pid 5138] <... write resumed>) = 4 [pid 5137] <... openat resumed>) = 3 [pid 5136] <... socketpair resumed>[19, 20]) = 0 [pid 5139] close(3 [pid 5138] close(3 [pid 5137] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5136] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5139] <... close resumed>) = 0 [pid 5138] <... close resumed>) = 0 [pid 5137] <... socketpair resumed>[4, 5]) = 0 [pid 5136] <... bpf resumed>) = 21 [pid 5139] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5138] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5139] <... openat resumed>) = 3 [pid 5137] socketpair(AF_UNIX, SOCK_STREAM, 0, [6, 7]) = 0 [pid 5139] socketpair(AF_UNIX, SOCK_STREAM, 0, [4, 5]) = 0 [pid 5138] <... openat resumed>) = 3 [pid 5137] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5138] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5139] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5137] <... bpf resumed>) = 8 [pid 5136] perf_event_open( [pid 5139] <... socketpair resumed>[6, 7]) = 0 [pid 5138] <... socketpair resumed>[4, 5]) = 0 [pid 5137] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5139] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5138] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5137] <... bpf resumed>) = 9 [pid 5139] <... bpf resumed>) = 8 [pid 5137] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5139] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5138] <... socketpair resumed>[6, 7]) = 0 [pid 5137] <... bpf resumed>) = 10 [pid 5139] <... bpf resumed>) = 9 [pid 5139] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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) = 10 [pid 5138] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5137] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5138] <... bpf resumed>) = 8 [pid 5138] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5137] <... bpf resumed>) = 11 [pid 5139] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5137] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5138] <... bpf resumed>) = 9 [pid 5138] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5139] <... bpf resumed>) = 11 [pid 5137] <... bpf resumed>) = 12 [pid 5139] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5137] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5139] <... bpf resumed>) = 12 [pid 5137] <... bpf resumed>) = 13 [pid 5139] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115) = 13 [pid 5138] <... bpf resumed>) = 10 [pid 5137] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5139] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5138] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5137] <... bpf resumed>) = 14 [pid 5139] <... bpf resumed>) = 14 [pid 5136] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5132] +++ exited with 0 +++ [pid 5138] <... bpf resumed>) = 11 [pid 5096] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5132, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5138] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5136] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5139] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5138] <... bpf resumed>) = 12 [pid 5137] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5136] <... bpf resumed>) = 23 [pid 5139] <... socketpair resumed>[15, 16]) = 0 [pid 5138] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5137] <... socketpair resumed>[15, 16]) = 0 [pid 5136] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5139] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5138] <... bpf resumed>) = 13 [pid 5137] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5139] <... openat resumed>) = -1 EEXIST (File exists) [pid 5138] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5137] <... openat resumed>) = -1 EEXIST (File exists) [pid 5136] <... openat resumed>) = 24 [pid 5096] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5139] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5137] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5139] <... bpf resumed> => 6}, 8) = 0 [pid 5137] <... bpf resumed> => 6}, 8) = 0 [pid 5139] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5137] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5136] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5139] <... bpf resumed>) = 17 [pid 5137] <... bpf resumed>) = 17 [pid 5136] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5139] perf_event_open( [pid 5137] perf_event_open( [pid 5136] perf_event_open( [pid 5139] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5138] <... bpf resumed>) = 14 [pid 5137] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5139] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5137] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5136] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5139] <... socketpair resumed>[19, 20]) = 0 [pid 5137] <... socketpair resumed>[19, 20]) = 0 [pid 5139] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5137] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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./strace-static-x86_64: Process 5140 attached [pid 5139] <... bpf resumed>) = 21 [pid 5138] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5137] <... bpf resumed>) = 21 [pid 5136] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5140] set_robust_list(0x555586eaa660, 24 [pid 5138] <... socketpair resumed>[15, 16]) = 0 [pid 5137] perf_event_open( [pid 5136] <... bpf resumed>) = 26 [pid 5096] <... clone resumed>, child_tidptr=0x555586eaa650) = 5140 [pid 5140] <... set_robust_list resumed>) = 0 [pid 5139] perf_event_open( [pid 5138] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5140] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5139] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5138] <... openat resumed>) = -1 EEXIST (File exists) [pid 5137] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5140] <... prctl resumed>) = 0 [pid 5139] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5137] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5136] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5140] setpgid(0, 0 [pid 5139] <... bpf resumed>) = 23 [pid 5138] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5137] <... bpf resumed>) = 23 [pid 5136] <... bpf resumed>) = 27 [pid 5140] <... setpgid resumed>) = 0 [pid 5139] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5138] <... bpf resumed> => 6}, 8) = 0 [pid 5137] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5140] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5139] <... openat resumed>) = 24 [pid 5138] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5137] <... openat resumed>) = 24 [pid 5138] <... bpf resumed>) = 17 [pid 5139] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5137] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5140] <... openat resumed>) = 3 [pid 5139] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5138] perf_event_open( [pid 5137] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5136] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5139] perf_event_open( [pid 5137] perf_event_open( [pid 5136] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5140] write(3, "1000", 4 [pid 5139] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5138] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5137] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5136] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5139] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5136] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5140] <... write resumed>) = 4 [pid 5139] <... bpf resumed>) = 26 [pid 5138] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5137] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5136] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 779 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 tot"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5140] close(3 [pid 5139] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5138] <... socketpair resumed>[19, 20]) = 0 [pid 5136] <... bpf resumed>) = 28 [pid 5140] <... close resumed>) = 0 [pid 5138] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5140] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000) = 3 [pid 5139] <... bpf resumed>) = 27 [pid 5138] <... bpf resumed>) = 21 [pid 5137] <... bpf resumed>) = 26 [pid 5136] close(28 [pid 5140] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5136] <... close resumed>) = 0 [pid 5139] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5136] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5140] <... socketpair resumed>[4, 5]) = 0 [pid 5139] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5137] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5136] <... socketpair resumed>[28, 29]) = 0 [pid 5140] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5139] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5138] perf_event_open( [pid 5137] <... bpf resumed>) = 27 [pid 5136] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5140] <... socketpair resumed>[6, 7]) = 0 [pid 5139] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5140] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5138] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5140] <... bpf resumed>) = 8 [pid 5138] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5140] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5138] <... bpf resumed>) = 23 [pid 5139] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 715 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 tot"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5137] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5136] <... bpf resumed>) = 30 [pid 5140] <... bpf resumed>) = 9 [pid 5139] <... bpf resumed>) = 28 [pid 5138] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5137] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5136] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5140] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5139] close(28 [pid 5137] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5136] <... bpf resumed>) = 0 [pid 5140] <... bpf resumed>) = 10 [pid 5139] <... close resumed>) = 0 [pid 5138] <... openat resumed>) = 24 [pid 5137] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5136] exit_group(0 [pid 5140] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5139] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5138] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5137] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 3337 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5136] <... exit_group resumed>) = ? [pid 5140] <... bpf resumed>) = 11 [pid 5139] <... socketpair resumed>[28, 29]) = 0 [pid 5138] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5137] <... bpf resumed>) = 28 [pid 5140] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5138] perf_event_open( [pid 5140] <... bpf resumed>) = 12 [pid 5139] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5140] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5139] <... bpf resumed>) = 30 [pid 5138] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5137] close(28 [pid 5140] <... bpf resumed>) = 13 [pid 5139] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5138] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5137] <... close resumed>) = 0 [pid 5140] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5139] <... bpf resumed>) = 0 [pid 5137] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5136] +++ exited with 0 +++ [pid 5139] exit_group(0 [pid 5137] <... socketpair resumed>[28, 29]) = 0 [pid 5139] <... exit_group resumed>) = ? [pid 5138] <... bpf resumed>) = 26 [pid 5137] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5140] <... bpf resumed>) = 14 [pid 5138] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5137] <... bpf resumed>) = 30 [pid 5137] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5136, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5137] <... bpf resumed>) = 0 [pid 5140] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5137] exit_group(0 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5137] <... exit_group resumed>) = ? [pid 5140] <... socketpair resumed>[15, 16]) = 0 [pid 5139] +++ exited with 0 +++ ./strace-static-x86_64: Process 5141 attached [pid 5140] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5138] <... bpf resumed>) = 27 [pid 5093] <... clone resumed>, child_tidptr=0x555586eaa650) = 5141 [pid 5141] set_robust_list(0x555586eaa660, 24 [pid 5140] <... openat resumed>) = -1 EEXIST (File exists) [pid 5138] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5094] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5139, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5140] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5141] <... set_robust_list resumed>) = 0 [pid 5138] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5137] +++ exited with 0 +++ [pid 5140] <... bpf resumed> => 6}, 8) = 0 [pid 5138] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5141] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5140] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5138] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5137, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5141] <... prctl resumed>) = 0 [pid 5140] <... bpf resumed>) = 17 [pid 5138] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1239 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5094] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5142 attached [pid 5141] setpgid(0, 0 [pid 5140] perf_event_open( [pid 5138] <... bpf resumed>) = 28 [pid 5142] set_robust_list(0x555586eaa660, 24 [pid 5141] <... setpgid resumed>) = 0 [pid 5140] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5138] close(28 [pid 5094] <... clone resumed>, child_tidptr=0x555586eaa650) = 5142 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5142] <... set_robust_list resumed>) = 0 [pid 5141] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5142] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5141] <... openat resumed>) = 3 [pid 5140] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5138] <... close resumed>) = 0 [pid 5142] <... prctl resumed>) = 0 [pid 5140] <... socketpair resumed>[19, 20]) = 0 [pid 5141] write(3, "1000", 4 [pid 5138] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5141] <... write resumed>) = 4 [pid 5140] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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./strace-static-x86_64: Process 5143 attached [pid 5142] setpgid(0, 0 [pid 5141] close(3 [pid 5140] <... bpf resumed>) = 21 [pid 5138] <... socketpair resumed>[28, 29]) = 0 [pid 5142] <... setpgid resumed>) = 0 [pid 5141] <... close resumed>) = 0 [pid 5143] set_robust_list(0x555586eaa660, 24 [pid 5142] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5141] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5143] <... set_robust_list resumed>) = 0 [pid 5089] <... clone resumed>, child_tidptr=0x555586eaa650) = 5143 [pid 5143] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5141] <... openat resumed>) = 3 [pid 5138] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5142] <... openat resumed>) = 3 [pid 5141] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5140] perf_event_open( [pid 5138] <... bpf resumed>) = 30 [pid 5143] <... prctl resumed>) = 0 [pid 5142] write(3, "1000", 4 [pid 5140] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5138] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5143] setpgid(0, 0 [pid 5142] <... write resumed>) = 4 [pid 5143] <... setpgid resumed>) = 0 [pid 5141] <... socketpair resumed>[4, 5]) = 0 [pid 5140] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5143] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5142] close(3 [pid 5141] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5138] <... bpf resumed>) = 0 [pid 5142] <... close resumed>) = 0 [pid 5141] <... socketpair resumed>[6, 7]) = 0 [pid 5140] <... bpf resumed>) = 23 [pid 5142] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5141] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5140] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5138] exit_group(0 [pid 5143] <... openat resumed>) = 3 [pid 5142] <... openat resumed>) = 3 [pid 5138] <... exit_group resumed>) = ? [pid 5142] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5143] write(3, "1000", 4 [pid 5142] <... socketpair resumed>[4, 5]) = 0 [pid 5141] <... bpf resumed>) = 8 [pid 5140] <... openat resumed>) = 24 [pid 5143] <... write resumed>) = 4 [pid 5141] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5143] close(3 [pid 5141] <... bpf resumed>) = 9 [pid 5140] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5143] <... close resumed>) = 0 [pid 5141] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5140] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5143] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000) = 3 [pid 5140] perf_event_open( [pid 5143] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5142] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5140] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5143] <... socketpair resumed>[4, 5]) = 0 [pid 5142] <... socketpair resumed>[6, 7]) = 0 [pid 5143] socketpair(AF_UNIX, SOCK_STREAM, 0, [6, 7]) = 0 [pid 5140] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5142] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5143] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5142] <... bpf resumed>) = 8 [pid 5141] <... bpf resumed>) = 10 [pid 5140] <... bpf resumed>) = 26 [pid 5143] <... bpf resumed>) = 8 [pid 5141] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5143] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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) = 9 [pid 5142] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5143] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5141] <... bpf resumed>) = 11 [pid 5140] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5142] <... bpf resumed>) = 9 [pid 5141] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5138] +++ exited with 0 +++ [pid 5143] <... bpf resumed>) = 10 [pid 5142] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5141] <... bpf resumed>) = 12 [pid 5143] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5141] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5140] <... bpf resumed>) = 27 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5138, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5141] <... bpf resumed>) = 13 [pid 5140] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5143] <... bpf resumed>) = 11 [pid 5141] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5140] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5090] restart_syscall(<... resuming interrupted clone ...> [pid 5143] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5142] <... bpf resumed>) = 10 [pid 5143] <... bpf resumed>) = 12 [pid 5142] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5141] <... bpf resumed>) = 14 [pid 5140] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5090] <... restart_syscall resumed>) = 0 [pid 5143] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5142] <... bpf resumed>) = 11 [pid 5141] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5140] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5142] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5143] <... bpf resumed>) = 13 [pid 5141] <... socketpair resumed>[15, 16]) = 0 [pid 5140] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1008 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5143] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5142] <... bpf resumed>) = 12 [pid 5141] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5142] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5141] <... openat resumed>) = -1 EEXIST (File exists) [pid 5140] <... bpf resumed>) = 28 [pid 5141] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5140] close(28 [pid 5141] <... bpf resumed> => 6}, 8) = 0 [pid 5140] <... close resumed>) = 0 ./strace-static-x86_64: Process 5144 attached [pid 5141] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5140] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5144] set_robust_list(0x555586eaa660, 24 [pid 5143] <... bpf resumed>) = 14 [pid 5141] <... bpf resumed>) = 17 [pid 5140] <... socketpair resumed>[28, 29]) = 0 [pid 5144] <... set_robust_list resumed>) = 0 [pid 5143] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5142] <... bpf resumed>) = 13 [pid 5141] perf_event_open( [pid 5090] <... clone resumed>, child_tidptr=0x555586eaa650) = 5144 [pid 5144] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5143] <... socketpair resumed>[15, 16]) = 0 [pid 5142] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5141] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5140] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5144] <... prctl resumed>) = 0 [pid 5143] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5141] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5140] <... bpf resumed>) = 30 [pid 5144] setpgid(0, 0 [pid 5141] <... socketpair resumed>[19, 20]) = 0 [pid 5144] <... setpgid resumed>) = 0 [pid 5143] <... openat resumed>) = -1 EEXIST (File exists) [pid 5140] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5144] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5143] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5142] <... bpf resumed>) = 14 [pid 5141] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5140] <... bpf resumed>) = 0 [pid 5144] <... openat resumed>) = 3 [pid 5143] <... bpf resumed> => 6}, 8) = 0 [pid 5142] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5143] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5144] write(3, "1000", 4 [pid 5141] <... bpf resumed>) = 21 [pid 5140] exit_group(0 [pid 5144] <... write resumed>) = 4 [pid 5143] <... bpf resumed>) = 17 [pid 5142] <... socketpair resumed>[15, 16]) = 0 [pid 5143] perf_event_open( [pid 5142] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5143] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5143] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5144] close(3 [pid 5140] <... exit_group resumed>) = ? [pid 5144] <... close resumed>) = 0 [pid 5143] <... socketpair resumed>[19, 20]) = 0 [pid 5142] <... openat resumed>) = -1 EEXIST (File exists) [pid 5141] perf_event_open( [pid 5144] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5143] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5142] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5144] <... openat resumed>) = 3 [pid 5142] <... bpf resumed> => 6}, 8) = 0 [pid 5141] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5144] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5142] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5144] <... socketpair resumed>[4, 5]) = 0 [pid 5142] <... bpf resumed>) = 17 [pid 5142] perf_event_open( [pid 5141] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5143] <... bpf resumed>) = 21 [pid 5142] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5144] socketpair(AF_UNIX, SOCK_STREAM, 0, [6, 7]) = 0 [pid 5142] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5144] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5141] <... bpf resumed>) = 23 [pid 5143] perf_event_open( [pid 5144] <... bpf resumed>) = 8 [pid 5142] <... socketpair resumed>[19, 20]) = 0 [pid 5141] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5140] +++ exited with 0 +++ [pid 5144] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5143] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5142] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5141] <... openat resumed>) = 24 [pid 5096] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5140, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5144] <... bpf resumed>) = 9 [pid 5143] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5141] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5144] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5142] <... bpf resumed>) = 21 [pid 5141] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5143] <... bpf resumed>) = 23 [pid 5142] perf_event_open( [pid 5141] perf_event_open( [pid 5143] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5144] <... bpf resumed>) = 10 [pid 5143] <... openat resumed>) = 24 [pid 5142] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5141] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5144] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5142] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5143] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5144] <... bpf resumed>) = 11 [pid 5143] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5142] <... bpf resumed>) = 23 [pid 5141] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5096] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5144] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5143] perf_event_open( [pid 5142] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5141] <... bpf resumed>) = 26 [pid 5144] <... bpf resumed>) = 12 [pid 5142] <... openat resumed>) = 24 [pid 5144] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115) = 13 [pid 5142] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5141] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20./strace-static-x86_64: Process 5145 attached [pid 5144] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5143] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5142] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5145] set_robust_list(0x555586eaa660, 24 [pid 5142] perf_event_open( [pid 5144] <... bpf resumed>) = 14 [pid 5141] <... bpf resumed>) = 27 [pid 5096] <... clone resumed>, child_tidptr=0x555586eaa650) = 5145 [pid 5145] <... set_robust_list resumed>) = 0 [pid 5144] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5143] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5142] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5141] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5145] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5144] <... socketpair resumed>[15, 16]) = 0 [pid 5142] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5141] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5145] <... prctl resumed>) = 0 [pid 5144] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5141] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5143] <... bpf resumed>) = 26 [pid 5141] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 956 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 tot"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5145] setpgid(0, 0 [pid 5144] <... openat resumed>) = -1 EEXIST (File exists) [pid 5143] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5142] <... bpf resumed>) = 26 [pid 5141] <... bpf resumed>) = 28 [pid 5145] <... setpgid resumed>) = 0 [pid 5141] close(28 [pid 5145] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5144] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5143] <... bpf resumed>) = 27 [pid 5142] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5145] <... openat resumed>) = 3 [pid 5144] <... bpf resumed> => 6}, 8) = 0 [pid 5144] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5143] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5141] <... close resumed>) = 0 [pid 5145] write(3, "1000", 4 [pid 5144] <... bpf resumed>) = 17 [pid 5145] <... write resumed>) = 4 [pid 5144] perf_event_open( [pid 5145] close(3 [pid 5144] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5145] <... close resumed>) = 0 [pid 5144] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5145] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5144] <... socketpair resumed>[19, 20]) = 0 [pid 5143] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5145] <... openat resumed>) = 3 [pid 5142] <... bpf resumed>) = 27 [pid 5141] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5144] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5143] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5145] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5144] <... bpf resumed>) = 21 [pid 5143] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5142] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5141] <... socketpair resumed>[28, 29]) = 0 [pid 5143] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 2051 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5141] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5145] <... socketpair resumed>[4, 5]) = 0 [pid 5144] perf_event_open( [pid 5142] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5145] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5144] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5143] <... bpf resumed>) = 28 [pid 5142] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5141] <... bpf resumed>) = 30 [pid 5145] <... socketpair resumed>[6, 7]) = 0 [pid 5144] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5143] close(28 [pid 5142] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5141] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5145] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5144] <... bpf resumed>) = 23 [pid 5143] <... close resumed>) = 0 [pid 5142] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1863 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5145] <... bpf resumed>) = 8 [pid 5144] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5143] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5141] <... bpf resumed>) = 0 [pid 5145] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5144] <... openat resumed>) = 24 [pid 5141] exit_group(0 [pid 5143] <... socketpair resumed>[28, 29]) = 0 [pid 5142] <... bpf resumed>) = 28 [pid 5145] <... bpf resumed>) = 9 [pid 5144] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5145] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5143] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5142] close(28 [pid 5141] <... exit_group resumed>) = ? [pid 5144] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5144] perf_event_open( [pid 5145] <... bpf resumed>) = 10 [pid 5144] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5142] <... close resumed>) = 0 [pid 5143] <... bpf resumed>) = 30 [pid 5144] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5145] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5143] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5142] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5141] +++ exited with 0 +++ [pid 5145] <... bpf resumed>) = 11 [pid 5143] <... bpf resumed>) = 0 [pid 5142] <... socketpair resumed>[28, 29]) = 0 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5141, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5144] <... bpf resumed>) = 26 [pid 5145] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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) = 12 [pid 5144] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5143] exit_group(0 [pid 5142] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5145] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115) = 13 [pid 5144] <... bpf resumed>) = 27 [pid 5143] <... exit_group resumed>) = ? [pid 5142] <... bpf resumed>) = 30 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5145] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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) = 14 [pid 5145] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, ./strace-static-x86_64: Process 5146 attached [pid 5144] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5143] +++ exited with 0 +++ [pid 5142] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5146] set_robust_list(0x555586eaa660, 24 [pid 5145] <... socketpair resumed>[15, 16]) = 0 [pid 5144] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5144] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5143, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5145] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5142] <... bpf resumed>) = 0 [pid 5146] <... set_robust_list resumed>) = 0 [pid 5145] <... openat resumed>) = -1 EEXIST (File exists) [pid 5142] exit_group(0 [pid 5093] <... clone resumed>, child_tidptr=0x555586eaa650) = 5146 [pid 5145] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5144] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5146] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5145] <... bpf resumed> => 6}, 8) = 0 [pid 5142] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5147 attached [pid 5145] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5144] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1037 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5147] set_robust_list(0x555586eaa660, 24 [pid 5146] <... prctl resumed>) = 0 [pid 5145] <... bpf resumed>) = 17 [pid 5146] setpgid(0, 0) = 0 [pid 5146] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5147] <... set_robust_list resumed>) = 0 [pid 5146] <... openat resumed>) = 3 [pid 5145] perf_event_open( [pid 5144] <... bpf resumed>) = 28 [pid 5089] <... clone resumed>, child_tidptr=0x555586eaa650) = 5147 [pid 5147] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5146] write(3, "1000", 4 [pid 5145] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5144] close(28 [pid 5147] <... prctl resumed>) = 0 [pid 5147] setpgid(0, 0 [pid 5146] <... write resumed>) = 4 [pid 5145] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5144] <... close resumed>) = 0 [pid 5147] <... setpgid resumed>) = 0 [pid 5146] close(3 [pid 5145] <... socketpair resumed>[19, 20]) = 0 [pid 5144] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5146] <... close resumed>) = 0 [pid 5147] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5146] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5145] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5144] <... socketpair resumed>[28, 29]) = 0 [pid 5147] <... openat resumed>) = 3 [pid 5146] <... openat resumed>) = 3 [pid 5147] write(3, "1000", 4 [pid 5146] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5144] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5142] +++ exited with 0 +++ [pid 5147] <... write resumed>) = 4 [pid 5146] <... socketpair resumed>[4, 5]) = 0 [pid 5145] <... bpf resumed>) = 21 [pid 5144] <... bpf resumed>) = 30 [pid 5094] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5142, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5147] close(3 [pid 5145] perf_event_open( [pid 5144] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5147] <... close resumed>) = 0 [pid 5146] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5147] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5146] <... socketpair resumed>[6, 7]) = 0 [pid 5144] <... bpf resumed>) = 0 [pid 5145] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5146] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5147] <... openat resumed>) = 3 [pid 5146] <... bpf resumed>) = 8 [pid 5145] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5144] exit_group(0 [pid 5147] socketpair(AF_UNIX, SOCK_STREAM, 0, [4, 5]) = 0 [pid 5146] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5144] <... exit_group resumed>) = ? [pid 5094] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5146] <... bpf resumed>) = 9 [pid 5146] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5147] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5146] <... bpf resumed>) = 10 [pid 5145] <... bpf resumed>) = 23 ./strace-static-x86_64: Process 5148 attached [pid 5148] set_robust_list(0x555586eaa660, 24 [pid 5147] <... socketpair resumed>[6, 7]) = 0 [pid 5148] <... set_robust_list resumed>) = 0 [pid 5148] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5148] setpgid(0, 0) = 0 [pid 5148] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5146] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5148] <... openat resumed>) = 3 [pid 5147] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5146] <... bpf resumed>) = 11 [pid 5145] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5094] <... clone resumed>, child_tidptr=0x555586eaa650) = 5148 [pid 5148] write(3, "1000", 4 [pid 5147] <... bpf resumed>) = 8 [pid 5146] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5148] <... write resumed>) = 4 [pid 5147] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5146] <... bpf resumed>) = 12 [pid 5145] <... openat resumed>) = 24 [pid 5148] close(3) = 0 [pid 5146] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5148] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5147] <... bpf resumed>) = 9 [pid 5146] <... bpf resumed>) = 13 [pid 5145] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5147] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5146] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5145] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5148] <... openat resumed>) = 3 [pid 5147] <... bpf resumed>) = 10 [pid 5145] perf_event_open( [pid 5148] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5147] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16) = 11 [pid 5148] <... socketpair resumed>[4, 5]) = 0 [pid 5147] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5148] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5147] <... bpf resumed>) = 12 [pid 5147] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5148] <... socketpair resumed>[6, 7]) = 0 [pid 5146] <... bpf resumed>) = 14 [pid 5148] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5147] <... bpf resumed>) = 13 [pid 5147] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5148] <... bpf resumed>) = 8 [pid 5146] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5147] <... bpf resumed>) = 14 [pid 5146] <... socketpair resumed>[15, 16]) = 0 [pid 5145] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5144] +++ exited with 0 +++ [pid 5148] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5147] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5146] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5145] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5148] <... bpf resumed>) = 9 [pid 5147] <... socketpair resumed>[15, 16]) = 0 [pid 5146] <... openat resumed>) = -1 EEXIST (File exists) [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5144, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5148] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5147] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5146] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5090] restart_syscall(<... resuming interrupted clone ...> [pid 5147] <... openat resumed>) = -1 EEXIST (File exists) [pid 5090] <... restart_syscall resumed>) = 0 [pid 5145] <... bpf resumed>) = 26 [pid 5147] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5148] <... bpf resumed>) = 10 [pid 5147] <... bpf resumed> => 6}, 8) = 0 [pid 5146] <... bpf resumed> => 6}, 8) = 0 [pid 5145] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5146] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4./strace-static-x86_64: Process 5149 attached [pid 5148] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5147] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5146] <... bpf resumed>) = 17 [pid 5147] <... bpf resumed>) = 17 [pid 5146] perf_event_open( [pid 5145] <... bpf resumed>) = 27 [pid 5149] set_robust_list(0x555586eaa660, 24 [pid 5148] <... bpf resumed>) = 11 [pid 5147] perf_event_open( [pid 5146] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5090] <... clone resumed>, child_tidptr=0x555586eaa650) = 5149 [pid 5149] <... set_robust_list resumed>) = 0 [pid 5147] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5146] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5147] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5149] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5148] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5146] <... socketpair resumed>[19, 20]) = 0 [pid 5149] <... prctl resumed>) = 0 [pid 5148] <... bpf resumed>) = 12 [pid 5147] <... socketpair resumed>[19, 20]) = 0 [pid 5146] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5145] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5149] setpgid(0, 0 [pid 5148] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5147] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5145] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5149] <... setpgid resumed>) = 0 [pid 5148] <... bpf resumed>) = 13 [pid 5146] <... bpf resumed>) = 21 [pid 5145] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5149] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5148] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5146] perf_event_open( [pid 5145] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5147] <... bpf resumed>) = 21 [pid 5147] perf_event_open( [pid 5149] <... openat resumed>) = 3 [pid 5148] <... bpf resumed>) = 14 [pid 5146] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5145] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1505 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5149] write(3, "1000", 4 [pid 5148] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5147] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5146] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5149] <... write resumed>) = 4 [pid 5148] <... socketpair resumed>[15, 16]) = 0 [pid 5145] <... bpf resumed>) = 28 [pid 5149] close(3 [pid 5148] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5149] <... close resumed>) = 0 [pid 5148] <... openat resumed>) = -1 EEXIST (File exists) [pid 5147] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5149] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5148] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5146] <... bpf resumed>) = 23 [pid 5145] close(28 [pid 5149] <... openat resumed>) = 3 [pid 5148] <... bpf resumed> => 6}, 8) = 0 [pid 5147] <... bpf resumed>) = 23 [pid 5146] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5145] <... close resumed>) = 0 [pid 5149] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5148] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5147] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5149] <... socketpair resumed>[4, 5]) = 0 [pid 5148] <... bpf resumed>) = 17 [pid 5146] <... openat resumed>) = 24 [pid 5145] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5149] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5148] perf_event_open( [pid 5149] <... socketpair resumed>[6, 7]) = 0 [pid 5148] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5147] <... openat resumed>) = 24 [pid 5146] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5145] <... socketpair resumed>[28, 29]) = 0 [pid 5149] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5148] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5147] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5146] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5149] <... bpf resumed>) = 8 [pid 5145] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5149] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5148] <... socketpair resumed>[19, 20]) = 0 [pid 5147] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5146] perf_event_open( [pid 5147] perf_event_open( [pid 5145] <... bpf resumed>) = 30 [pid 5149] <... bpf resumed>) = 9 [pid 5148] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5146] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5145] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5149] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5147] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5145] <... bpf resumed>) = 0 [pid 5148] <... bpf resumed>) = 21 [pid 5148] perf_event_open( [pid 5149] <... bpf resumed>) = 10 [pid 5147] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5146] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5145] exit_group(0 [pid 5149] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5148] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5147] <... bpf resumed>) = 26 [pid 5146] <... bpf resumed>) = 26 [pid 5149] <... bpf resumed>) = 11 [pid 5148] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5145] <... exit_group resumed>) = ? [pid 5149] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5147] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5146] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5149] <... bpf resumed>) = 12 [pid 5148] <... bpf resumed>) = 23 [pid 5149] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5148] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5149] <... bpf resumed>) = 13 [pid 5149] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5147] <... bpf resumed>) = 27 [pid 5146] <... bpf resumed>) = 27 [pid 5148] <... openat resumed>) = 24 [pid 5146] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5149] <... bpf resumed>) = 14 [pid 5148] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5147] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5145] +++ exited with 0 +++ [pid 5149] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5148] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5147] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5146] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5096] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5145, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5149] <... socketpair resumed>[15, 16]) = 0 [pid 5148] perf_event_open( [pid 5147] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5146] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5148] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5146] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5096] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5149] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5148] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5147] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5146] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 903 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 tot"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72./strace-static-x86_64: Process 5150 attached [pid 5149] <... openat resumed>) = -1 EEXIST (File exists) [pid 5147] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1046 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5146] <... bpf resumed>) = 28 [pid 5150] set_robust_list(0x555586eaa660, 24 [pid 5149] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5148] <... bpf resumed>) = 26 [pid 5150] <... set_robust_list resumed>) = 0 [pid 5149] <... bpf resumed> => 6}, 8) = 0 [pid 5096] <... clone resumed>, child_tidptr=0x555586eaa650) = 5150 [pid 5148] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5147] <... bpf resumed>) = 28 [pid 5146] close(28 [pid 5150] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5149] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5150] <... prctl resumed>) = 0 [pid 5149] <... bpf resumed>) = 17 [pid 5147] close(28 [pid 5146] <... close resumed>) = 0 [pid 5150] setpgid(0, 0 [pid 5149] perf_event_open( [pid 5150] <... setpgid resumed>) = 0 [pid 5149] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5148] <... bpf resumed>) = 27 [pid 5147] <... close resumed>) = 0 [pid 5146] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5150] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5149] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5148] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5147] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5146] <... socketpair resumed>[28, 29]) = 0 [pid 5148] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5150] <... openat resumed>) = 3 [pid 5149] <... socketpair resumed>[19, 20]) = 0 [pid 5148] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5146] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5147] <... socketpair resumed>[28, 29]) = 0 [pid 5150] write(3, "1000", 4 [pid 5149] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5148] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5150] <... write resumed>) = 4 [pid 5147] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5146] <... bpf resumed>) = 30 [pid 5150] close(3 [pid 5148] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 969 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 tot"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5150] <... close resumed>) = 0 [pid 5149] <... bpf resumed>) = 21 [pid 5147] <... bpf resumed>) = 30 [pid 5146] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5150] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000) = 3 [pid 5146] <... bpf resumed>) = 0 [pid 5147] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32) = 0 [pid 5149] perf_event_open( [pid 5146] exit_group(0 [pid 5150] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5148] <... bpf resumed>) = 28 [pid 5147] exit_group(0 [pid 5146] <... exit_group resumed>) = ? [pid 5149] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5150] <... socketpair resumed>[4, 5]) = 0 [pid 5147] <... exit_group resumed>) = ? [pid 5150] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5149] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5150] <... socketpair resumed>[6, 7]) = 0 [pid 5149] <... bpf resumed>) = 23 [pid 5148] close(28 [pid 5149] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 24 [pid 5149] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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) = -1 EINVAL (Invalid argument) [pid 5149] perf_event_open({type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5149] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5150] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5149] <... bpf resumed>) = 26 [pid 5148] <... close resumed>) = 0 [pid 5146] +++ exited with 0 +++ [pid 5150] <... bpf resumed>) = 8 [pid 5148] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5150] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5148] <... socketpair resumed>[28, 29]) = 0 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5146, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5148] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5150] <... bpf resumed>) = 9 [pid 5150] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5149] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5148] <... bpf resumed>) = 30 [pid 5150] <... bpf resumed>) = 10 [pid 5149] <... bpf resumed>) = 27 [pid 5148] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5147] +++ exited with 0 +++ [pid 5150] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5149] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5148] <... bpf resumed>) = 0 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5147, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5150] <... bpf resumed>) = 11 [pid 5149] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5148] exit_group(0 [pid 5149] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5150] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5148] <... exit_group resumed>) = ? [pid 5150] <... bpf resumed>) = 12 [pid 5149] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5150] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5149] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 964 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 tot"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5151 attached [pid 5150] <... bpf resumed>) = 13 [pid 5149] <... bpf resumed>) = 28 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5151] set_robust_list(0x555586eaa660, 24 [pid 5150] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5148] +++ exited with 0 +++ ./strace-static-x86_64: Process 5152 attached [pid 5149] close(28 [pid 5152] set_robust_list(0x555586eaa660, 24 [pid 5149] <... close resumed>) = 0 [pid 5152] <... set_robust_list resumed>) = 0 [pid 5149] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5094] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5148, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5152] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5151] <... set_robust_list resumed>) = 0 [pid 5149] <... socketpair resumed>[28, 29]) = 0 [pid 5094] restart_syscall(<... resuming interrupted clone ...> [pid 5152] <... prctl resumed>) = 0 [pid 5149] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5094] <... restart_syscall resumed>) = 0 [pid 5093] <... clone resumed>, child_tidptr=0x555586eaa650) = 5151 [pid 5151] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5089] <... clone resumed>, child_tidptr=0x555586eaa650) = 5152 [pid 5152] setpgid(0, 0 [pid 5151] <... prctl resumed>) = 0 [pid 5150] <... bpf resumed>) = 14 [pid 5149] <... bpf resumed>) = 30 [pid 5152] <... setpgid resumed>) = 0 [pid 5151] setpgid(0, 0 [pid 5150] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5152] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5151] <... setpgid resumed>) = 0 [pid 5150] <... socketpair resumed>[15, 16]) = 0 [pid 5149] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5152] <... openat resumed>) = 3 [pid 5151] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5152] write(3, "1000", 4 [pid 5149] <... bpf resumed>) = 0 [pid 5094] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5152] <... write resumed>) = 4 [pid 5151] <... openat resumed>) = 3 [pid 5150] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5149] exit_group(0./strace-static-x86_64: Process 5153 attached [pid 5152] close(3 [pid 5151] write(3, "1000", 4 [pid 5150] <... openat resumed>) = -1 EEXIST (File exists) [pid 5149] <... exit_group resumed>) = ? [pid 5153] set_robust_list(0x555586eaa660, 24 [pid 5152] <... close resumed>) = 0 [pid 5151] <... write resumed>) = 4 [pid 5150] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5151] close(3 [pid 5150] <... bpf resumed> => 6}, 8) = 0 [pid 5151] <... close resumed>) = 0 [pid 5150] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4) = 17 [pid 5150] perf_event_open( [pid 5153] <... set_robust_list resumed>) = 0 [pid 5152] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5151] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5150] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5153] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5152] <... openat resumed>) = 3 [pid 5151] <... openat resumed>) = 3 [pid 5150] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5153] setpgid(0, 0 [pid 5152] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5153] <... setpgid resumed>) = 0 [pid 5152] <... socketpair resumed>[4, 5]) = 0 [pid 5150] <... socketpair resumed>[19, 20]) = 0 [pid 5094] <... clone resumed>, child_tidptr=0x555586eaa650) = 5153 [pid 5153] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5151] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5150] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5153] <... openat resumed>) = 3 [pid 5152] socketpair(AF_UNIX, SOCK_STREAM, 0, [6, 7]) = 0 [pid 5151] <... socketpair resumed>[4, 5]) = 0 [pid 5153] write(3, "1000", 4 [pid 5152] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5153] <... write resumed>) = 4 [pid 5152] <... bpf resumed>) = 8 [pid 5151] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5153] close(3 [pid 5152] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5153] <... close resumed>) = 0 [pid 5152] <... bpf resumed>) = 9 [pid 5151] <... socketpair resumed>[6, 7]) = 0 [pid 5150] <... bpf resumed>) = 21 [pid 5153] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5152] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5151] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5150] perf_event_open( [pid 5153] <... openat resumed>) = 3 [pid 5152] <... bpf resumed>) = 10 [pid 5151] <... bpf resumed>) = 8 [pid 5153] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5152] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5151] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5153] <... socketpair resumed>[4, 5]) = 0 [pid 5152] <... bpf resumed>) = 11 [pid 5153] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5152] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5151] <... bpf resumed>) = 9 [pid 5150] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5149] +++ exited with 0 +++ [pid 5153] <... socketpair resumed>[6, 7]) = 0 [pid 5152] <... bpf resumed>) = 12 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5149, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5151] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5150] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5153] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5152] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5153] <... bpf resumed>) = 8 [pid 5152] <... bpf resumed>) = 13 [pid 5151] <... bpf resumed>) = 10 [pid 5150] <... bpf resumed>) = 23 [pid 5153] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5152] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5151] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5150] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5153] <... bpf resumed>) = 9 [pid 5152] <... bpf resumed>) = 14 [pid 5151] <... bpf resumed>) = 11 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5151] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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) = 12 [pid 5150] <... openat resumed>) = 24 [pid 5151] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115) = 13 [pid 5153] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5152] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5150] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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) = -1 EINVAL (Invalid argument) [pid 5151] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5153] <... bpf resumed>) = 10 [pid 5152] <... socketpair resumed>[15, 16]) = 0 [pid 5150] perf_event_open(./strace-static-x86_64: Process 5154 attached [pid 5153] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5152] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5151] <... bpf resumed>) = 14 [pid 5150] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5090] <... clone resumed>, child_tidptr=0x555586eaa650) = 5154 [pid 5154] set_robust_list(0x555586eaa660, 24 [pid 5153] <... bpf resumed>) = 11 [pid 5152] <... openat resumed>) = -1 EEXIST (File exists) [pid 5151] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5154] <... set_robust_list resumed>) = 0 [pid 5153] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5152] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5151] <... socketpair resumed>[15, 16]) = 0 [pid 5150] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5154] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5153] <... bpf resumed>) = 12 [pid 5152] <... bpf resumed> => 6}, 8) = 0 [pid 5151] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5154] <... prctl resumed>) = 0 [pid 5153] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5152] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5151] <... openat resumed>) = -1 EEXIST (File exists) [pid 5154] setpgid(0, 0 [pid 5152] <... bpf resumed>) = 17 [pid 5154] <... setpgid resumed>) = 0 [pid 5154] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5153] <... bpf resumed>) = 13 [pid 5152] perf_event_open( [pid 5151] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5152] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5153] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5154] <... openat resumed>) = 3 [pid 5153] <... bpf resumed>) = 14 [pid 5152] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5151] <... bpf resumed> => 6}, 8) = 0 [pid 5150] <... bpf resumed>) = 26 [pid 5154] write(3, "1000", 4) = 4 [pid 5154] close(3) = 0 [pid 5153] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5152] <... socketpair resumed>[19, 20]) = 0 [pid 5151] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5150] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5154] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5153] <... socketpair resumed>[15, 16]) = 0 [pid 5152] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5151] <... bpf resumed>) = 17 [pid 5154] <... openat resumed>) = 3 [pid 5153] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5150] <... bpf resumed>) = 27 [pid 5154] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5153] <... openat resumed>) = -1 EEXIST (File exists) [pid 5154] <... socketpair resumed>[4, 5]) = 0 [pid 5153] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 => 6}, 8) = 0 [pid 5153] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5152] <... bpf resumed>) = 21 [pid 5151] perf_event_open( [pid 5154] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5153] <... bpf resumed>) = 17 [pid 5150] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5154] <... socketpair resumed>[6, 7]) = 0 [pid 5153] perf_event_open( [pid 5152] perf_event_open( [pid 5151] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5151] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5150] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5153] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5151] <... socketpair resumed>[19, 20]) = 0 [pid 5154] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5153] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5152] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5151] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5150] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5154] <... bpf resumed>) = 8 [pid 5153] <... socketpair resumed>[19, 20]) = 0 [pid 5152] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5150] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5154] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5153] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5154] <... bpf resumed>) = 9 [pid 5152] <... bpf resumed>) = 23 [pid 5151] <... bpf resumed>) = 21 [pid 5150] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 2324 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5154] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5153] <... bpf resumed>) = 21 [pid 5154] <... bpf resumed>) = 10 [pid 5152] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5151] perf_event_open( [pid 5150] <... bpf resumed>) = 28 [pid 5153] perf_event_open( [pid 5154] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5153] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5152] <... openat resumed>) = 24 [pid 5151] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5150] close(28 [pid 5154] <... bpf resumed>) = 11 [pid 5153] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5154] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5152] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5151] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5150] <... close resumed>) = 0 [pid 5154] <... bpf resumed>) = 12 [pid 5153] <... bpf resumed>) = 23 [pid 5152] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5151] <... bpf resumed>) = 23 [pid 5150] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5154] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5153] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5152] perf_event_open( [pid 5151] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5150] <... socketpair resumed>[28, 29]) = 0 [pid 5154] <... bpf resumed>) = 13 [pid 5152] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5151] <... openat resumed>) = 24 [pid 5150] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5154] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5153] <... openat resumed>) = 24 [pid 5152] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5151] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5150] <... bpf resumed>) = 30 [pid 5154] <... bpf resumed>) = 14 [pid 5153] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5152] <... bpf resumed>) = 26 [pid 5151] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5150] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5154] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5153] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5152] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5151] perf_event_open( [pid 5150] <... bpf resumed>) = 0 [pid 5154] <... socketpair resumed>[15, 16]) = 0 [pid 5153] perf_event_open( [pid 5152] <... bpf resumed>) = 27 [pid 5151] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5154] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5150] exit_group(0 [pid 5154] <... openat resumed>) = -1 EEXIST (File exists) [pid 5153] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5152] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5151] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5150] <... exit_group resumed>) = ? [pid 5154] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5153] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5152] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5151] <... bpf resumed>) = 26 [pid 5154] <... bpf resumed> => 6}, 8) = 0 [pid 5154] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5153] <... bpf resumed>) = 26 [pid 5152] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5151] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5150] +++ exited with 0 +++ [pid 5154] <... bpf resumed>) = 17 [pid 5153] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5152] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5096] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5150, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5154] perf_event_open({type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5152] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1570 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5154] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [19, 20]) = 0 [pid 5153] <... bpf resumed>) = 27 [pid 5151] <... bpf resumed>) = 27 [pid 5096] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5154] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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) = 21 [pid 5152] <... bpf resumed>) = 28 [pid 5151] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777) = -1 ENOENT (No such file or directory) [pid 5151] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5151] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1082 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72./strace-static-x86_64: Process 5155 attached [pid 5154] perf_event_open( [pid 5153] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5152] close(28 [pid 5096] <... clone resumed>, child_tidptr=0x555586eaa650) = 5155 [pid 5155] set_robust_list(0x555586eaa660, 24 [pid 5152] <... close resumed>) = 0 [pid 5151] <... bpf resumed>) = 28 [pid 5155] <... set_robust_list resumed>) = 0 [pid 5154] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5153] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5152] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5155] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5153] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5151] close(28 [pid 5155] <... prctl resumed>) = 0 [pid 5154] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5153] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5152] <... socketpair resumed>[28, 29]) = 0 [pid 5151] <... close resumed>) = 0 [pid 5155] setpgid(0, 0 [pid 5153] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1012 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5151] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5155] <... setpgid resumed>) = 0 [pid 5154] <... bpf resumed>) = 23 [pid 5152] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5155] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5154] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5153] <... bpf resumed>) = 28 [pid 5152] <... bpf resumed>) = 30 [pid 5151] <... socketpair resumed>[28, 29]) = 0 [pid 5155] <... openat resumed>) = 3 [pid 5154] <... openat resumed>) = 24 [pid 5152] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5153] close(28 [pid 5155] write(3, "1000", 4 [pid 5154] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5153] <... close resumed>) = 0 [pid 5152] <... bpf resumed>) = 0 [pid 5151] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5155] <... write resumed>) = 4 [pid 5155] close(3 [pid 5154] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5155] <... close resumed>) = 0 [pid 5153] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5151] <... bpf resumed>) = 30 [pid 5155] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5154] perf_event_open( [pid 5153] <... socketpair resumed>[28, 29]) = 0 [pid 5152] exit_group(0 [pid 5151] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5155] <... openat resumed>) = 3 [pid 5154] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5153] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5151] <... bpf resumed>) = 0 [pid 5155] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5154] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5153] <... bpf resumed>) = 30 [pid 5152] <... exit_group resumed>) = ? [pid 5155] <... socketpair resumed>[4, 5]) = 0 [pid 5151] exit_group(0 [pid 5155] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5154] <... bpf resumed>) = 26 [pid 5153] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5152] +++ exited with 0 +++ [pid 5151] <... exit_group resumed>) = ? [pid 5153] <... bpf resumed>) = 0 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5152, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5155] <... socketpair resumed>[6, 7]) = 0 [pid 5153] exit_group(0) = ? [pid 5155] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5154] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5155] <... bpf resumed>) = 8 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5155] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5154] <... bpf resumed>) = 27 ./strace-static-x86_64: Process 5156 attached [pid 5155] <... bpf resumed>) = 9 [pid 5156] set_robust_list(0x555586eaa660, 24 [pid 5155] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5156] <... set_robust_list resumed>) = 0 [pid 5155] <... bpf resumed>) = 10 [pid 5154] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5089] <... clone resumed>, child_tidptr=0x555586eaa650) = 5156 [pid 5156] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5151] +++ exited with 0 +++ [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5151, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5093] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5156] <... prctl resumed>) = 0 [pid 5156] setpgid(0, 0 [pid 5155] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5154] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5156] <... setpgid resumed>) = 0 [pid 5155] <... bpf resumed>) = 11 [pid 5154] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5156] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5155] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5154] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5156] <... openat resumed>) = 3 [pid 5155] <... bpf resumed>) = 12 [pid 5154] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1013 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72./strace-static-x86_64: Process 5157 attached [pid 5156] write(3, "1000", 4 [pid 5155] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5153] +++ exited with 0 +++ [pid 5156] <... write resumed>) = 4 [pid 5155] <... bpf resumed>) = 13 [pid 5154] <... bpf resumed>) = 28 [pid 5156] close(3 [pid 5155] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5157] set_robust_list(0x555586eaa660, 24 [pid 5156] <... close resumed>) = 0 [pid 5154] close(28 [pid 5094] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5153, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5093] <... clone resumed>, child_tidptr=0x555586eaa650) = 5157 [pid 5157] <... set_robust_list resumed>) = 0 [pid 5156] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5155] <... bpf resumed>) = 14 [pid 5154] <... close resumed>) = 0 [pid 5094] restart_syscall(<... resuming interrupted clone ...> [pid 5157] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5156] <... openat resumed>) = 3 [pid 5155] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5154] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5094] <... restart_syscall resumed>) = 0 [pid 5157] <... prctl resumed>) = 0 [pid 5157] setpgid(0, 0 [pid 5156] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5155] <... socketpair resumed>[15, 16]) = 0 [pid 5154] <... socketpair resumed>[28, 29]) = 0 [pid 5157] <... setpgid resumed>) = 0 [pid 5156] <... socketpair resumed>[4, 5]) = 0 [pid 5094] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5157] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5156] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5155] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5154] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5157] <... openat resumed>) = 3 [pid 5156] <... socketpair resumed>[6, 7]) = 0 [pid 5155] <... openat resumed>) = -1 EEXIST (File exists) [pid 5154] <... bpf resumed>) = 30 ./strace-static-x86_64: Process 5158 attached [pid 5157] write(3, "1000", 4 [pid 5155] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5154] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5158] set_robust_list(0x555586eaa660, 24 [pid 5156] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5158] <... set_robust_list resumed>) = 0 [pid 5157] <... write resumed>) = 4 [pid 5155] <... bpf resumed> => 6}, 8) = 0 [pid 5094] <... clone resumed>, child_tidptr=0x555586eaa650) = 5158 [pid 5156] <... bpf resumed>) = 8 [pid 5154] <... bpf resumed>) = 0 [pid 5158] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5157] close(3 [pid 5156] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5155] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5158] <... prctl resumed>) = 0 [pid 5157] <... close resumed>) = 0 [pid 5156] <... bpf resumed>) = 9 [pid 5154] exit_group(0 [pid 5157] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5156] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5158] setpgid(0, 0 [pid 5157] <... openat resumed>) = 3 [pid 5155] <... bpf resumed>) = 17 [pid 5154] <... exit_group resumed>) = ? [pid 5158] <... setpgid resumed>) = 0 [pid 5156] <... bpf resumed>) = 10 [pid 5156] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5158] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5157] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5155] perf_event_open( [pid 5158] <... openat resumed>) = 3 [pid 5157] <... socketpair resumed>[4, 5]) = 0 [pid 5156] <... bpf resumed>) = 11 [pid 5155] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5158] write(3, "1000", 4 [pid 5157] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5155] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5158] <... write resumed>) = 4 [pid 5157] <... socketpair resumed>[6, 7]) = 0 [pid 5155] <... socketpair resumed>[19, 20]) = 0 [pid 5158] close(3 [pid 5157] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5158] <... close resumed>) = 0 [pid 5157] <... bpf resumed>) = 8 [pid 5156] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5155] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5158] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5157] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5156] <... bpf resumed>) = 12 [pid 5155] <... bpf resumed>) = 21 [pid 5158] <... openat resumed>) = 3 [pid 5157] <... bpf resumed>) = 9 [pid 5158] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5157] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5158] <... socketpair resumed>[4, 5]) = 0 [pid 5157] <... bpf resumed>) = 10 [pid 5156] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5155] perf_event_open( [pid 5158] socketpair(AF_UNIX, SOCK_STREAM, 0, [6, 7]) = 0 [pid 5156] <... bpf resumed>) = 13 [pid 5158] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5157] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5158] <... bpf resumed>) = 8 [pid 5157] <... bpf resumed>) = 11 [pid 5156] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5158] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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) = 9 [pid 5157] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5158] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5157] <... bpf resumed>) = 12 [pid 5158] <... bpf resumed>) = 10 [pid 5157] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5156] <... bpf resumed>) = 14 [pid 5157] <... bpf resumed>) = 13 [pid 5157] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5158] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5156] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5158] <... bpf resumed>) = 11 [pid 5157] <... bpf resumed>) = 14 [pid 5156] <... socketpair resumed>[15, 16]) = 0 [pid 5158] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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) = 12 [pid 5156] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5158] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115) = 13 [pid 5157] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5156] <... openat resumed>) = -1 EEXIST (File exists) [pid 5158] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5157] <... socketpair resumed>[15, 16]) = 0 [pid 5156] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5158] <... bpf resumed>) = 14 [pid 5156] <... bpf resumed> => 6}, 8) = 0 [pid 5156] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5157] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5156] <... bpf resumed>) = 17 [pid 5157] <... openat resumed>) = -1 EEXIST (File exists) [pid 5157] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 => 6}, 8) = 0 [pid 5158] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5157] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5156] perf_event_open( [pid 5158] <... socketpair resumed>[15, 16]) = 0 [pid 5157] <... bpf resumed>) = 17 [pid 5157] perf_event_open({type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5156] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5158] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5157] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5158] <... openat resumed>) = -1 EEXIST (File exists) [pid 5157] <... socketpair resumed>[19, 20]) = 0 [pid 5156] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5158] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5157] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5155] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5158] <... bpf resumed> => 6}, 8) = 0 [pid 5156] <... socketpair resumed>[19, 20]) = 0 [pid 5154] +++ exited with 0 +++ [pid 5158] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5157] <... bpf resumed>) = 21 [pid 5156] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5155] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5154, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5158] <... bpf resumed>) = 17 [pid 5155] <... bpf resumed>) = 23 [pid 5158] perf_event_open( [pid 5157] perf_event_open( [pid 5158] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5156] <... bpf resumed>) = 21 [pid 5158] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5157] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5155] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5158] <... socketpair resumed>[19, 20]) = 0 [pid 5157] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5156] perf_event_open( [pid 5155] <... openat resumed>) = 24 [pid 5158] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5157] <... bpf resumed>) = 23 [pid 5156] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5158] <... bpf resumed>) = 21 [pid 5157] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5155] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5157] <... openat resumed>) = 24 [pid 5156] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5155] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5158] perf_event_open( [pid 5157] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5155] perf_event_open( [pid 5158] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5157] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5156] <... bpf resumed>) = 23 [pid 5155] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 ./strace-static-x86_64: Process 5159 attached [pid 5158] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5157] perf_event_open( [pid 5159] set_robust_list(0x555586eaa660, 24 [pid 5158] <... bpf resumed>) = 23 [pid 5157] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5156] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5155] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5090] <... clone resumed>, child_tidptr=0x555586eaa650) = 5159 [pid 5159] <... set_robust_list resumed>) = 0 [pid 5158] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5157] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5156] <... openat resumed>) = 24 [pid 5155] <... bpf resumed>) = 26 [pid 5159] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5156] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5159] <... prctl resumed>) = 0 [pid 5159] setpgid(0, 0 [pid 5158] <... openat resumed>) = 24 [pid 5157] <... bpf resumed>) = 26 [pid 5156] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5155] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5159] <... setpgid resumed>) = 0 [pid 5158] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5156] perf_event_open( [pid 5159] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5158] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5157] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5156] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5155] <... bpf resumed>) = 27 [pid 5159] write(3, "1000", 4 [pid 5158] perf_event_open( [pid 5157] <... bpf resumed>) = 27 [pid 5159] <... write resumed>) = 4 [pid 5158] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5156] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5159] close(3 [pid 5158] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5157] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5155] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5159] <... close resumed>) = 0 [pid 5158] <... bpf resumed>) = 26 [pid 5157] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5156] <... bpf resumed>) = 26 [pid 5155] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5157] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5155] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5157] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 855 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 tot"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5155] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5159] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5158] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5157] <... bpf resumed>) = 28 [pid 5156] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5155] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 818 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 tot"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5159] <... openat resumed>) = 3 [pid 5158] <... bpf resumed>) = 27 [pid 5159] socketpair(AF_UNIX, SOCK_STREAM, 0, [4, 5]) = 0 [pid 5155] <... bpf resumed>) = 28 [pid 5157] close(28 [pid 5159] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5158] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5157] <... close resumed>) = 0 [pid 5156] <... bpf resumed>) = 27 [pid 5155] close(28 [pid 5159] <... socketpair resumed>[6, 7]) = 0 [pid 5158] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5158] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5159] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5158] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5157] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5156] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5155] <... close resumed>) = 0 [pid 5159] <... bpf resumed>) = 8 [pid 5158] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1575 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5157] <... socketpair resumed>[28, 29]) = 0 [pid 5156] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5155] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5159] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5157] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5156] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5157] <... bpf resumed>) = 30 [pid 5156] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5157] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5156] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 974 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 tot"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5158] <... bpf resumed>) = 28 [pid 5159] <... bpf resumed>) = 9 [pid 5158] close(28 [pid 5157] <... bpf resumed>) = 0 [pid 5155] <... socketpair resumed>[28, 29]) = 0 [pid 5159] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5157] exit_group(0 [pid 5156] <... bpf resumed>) = 28 [pid 5158] <... close resumed>) = 0 [pid 5157] <... exit_group resumed>) = ? [pid 5155] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5159] <... bpf resumed>) = 10 [pid 5158] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5157] +++ exited with 0 +++ [pid 5156] close(28 [pid 5159] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5158] <... socketpair resumed>[28, 29]) = 0 [pid 5156] <... close resumed>) = 0 [pid 5155] <... bpf resumed>) = 30 [pid 5159] <... bpf resumed>) = 11 [pid 5156] socketpair(AF_UNIX, SOCK_STREAM, 0, [28, 29]) = 0 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5157, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5159] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5158] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5155] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5093] restart_syscall(<... resuming interrupted clone ...> [pid 5159] <... bpf resumed>) = 12 [pid 5158] <... bpf resumed>) = 30 [pid 5159] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5156] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5155] <... bpf resumed>) = 0 [pid 5093] <... restart_syscall resumed>) = 0 [pid 5158] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5159] <... bpf resumed>) = 13 [pid 5156] <... bpf resumed>) = 30 [pid 5156] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5155] exit_group(0 [pid 5159] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5158] <... bpf resumed>) = 0 [pid 5156] <... bpf resumed>) = 0 [pid 5156] exit_group(0 [pid 5155] <... exit_group resumed>) = ? [pid 5156] <... exit_group resumed>) = ? [pid 5159] <... bpf resumed>) = 14 [pid 5158] exit_group(0 [pid 5155] +++ exited with 0 +++ [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5159] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5158] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5160 attached [pid 5159] <... socketpair resumed>[15, 16]) = 0 [pid 5160] set_robust_list(0x555586eaa660, 24 [pid 5158] +++ exited with 0 +++ [pid 5096] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5155, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5094] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5158, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5159] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000) = -1 EEXIST (File exists) [pid 5159] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5160] <... set_robust_list resumed>) = 0 [pid 5096] restart_syscall(<... resuming interrupted clone ...> [pid 5093] <... clone resumed>, child_tidptr=0x555586eaa650) = 5160 [pid 5160] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5159] <... bpf resumed> => 6}, 8) = 0 [pid 5096] <... restart_syscall resumed>) = 0 [pid 5160] <... prctl resumed>) = 0 [pid 5159] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4) = 17 [pid 5159] perf_event_open( [pid 5160] setpgid(0, 0 [pid 5159] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5096] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5094] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5160] <... setpgid resumed>) = 0 [pid 5159] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5160] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5159] <... socketpair resumed>[19, 20]) = 0 ./strace-static-x86_64: Process 5161 attached [pid 5160] write(3, "1000", 4./strace-static-x86_64: Process 5162 attached [pid 5161] set_robust_list(0x555586eaa660, 24 [pid 5160] <... write resumed>) = 4 [pid 5159] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5162] set_robust_list(0x555586eaa660, 24 [pid 5161] <... set_robust_list resumed>) = 0 [pid 5160] close(3 [pid 5096] <... clone resumed>, child_tidptr=0x555586eaa650) = 5161 [pid 5094] <... clone resumed>, child_tidptr=0x555586eaa650) = 5162 [pid 5162] <... set_robust_list resumed>) = 0 [pid 5161] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5160] <... close resumed>) = 0 [pid 5162] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5161] <... prctl resumed>) = 0 [pid 5160] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5162] <... prctl resumed>) = 0 [pid 5161] setpgid(0, 0 [pid 5160] <... openat resumed>) = 3 [pid 5160] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5159] <... bpf resumed>) = 21 [pid 5162] setpgid(0, 0 [pid 5161] <... setpgid resumed>) = 0 [pid 5156] +++ exited with 0 +++ [pid 5160] <... socketpair resumed>[4, 5]) = 0 [pid 5162] <... setpgid resumed>) = 0 [pid 5161] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5156, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5162] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5160] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5159] perf_event_open( [pid 5161] <... openat resumed>) = 3 [pid 5089] restart_syscall(<... resuming interrupted clone ...> [pid 5162] write(3, "1000", 4 [pid 5161] write(3, "1000", 4 [pid 5162] <... write resumed>) = 4 [pid 5161] <... write resumed>) = 4 [pid 5162] close(3 [pid 5161] close(3 [pid 5162] <... close resumed>) = 0 [pid 5161] <... close resumed>) = 0 [pid 5160] <... socketpair resumed>[6, 7]) = 0 [pid 5089] <... restart_syscall resumed>) = 0 [pid 5160] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5162] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5160] <... bpf resumed>) = 8 [pid 5161] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5160] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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./strace-static-x86_64: Process 5163 attached [pid 5162] <... openat resumed>) = 3 [pid 5161] <... openat resumed>) = 3 [pid 5159] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5160] <... bpf resumed>) = 9 [pid 5163] set_robust_list(0x555586eaa660, 24) = 0 [pid 5162] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5161] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5159] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5163] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5160] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5089] <... clone resumed>, child_tidptr=0x555586eaa650) = 5163 [pid 5163] <... prctl resumed>) = 0 [pid 5162] <... socketpair resumed>[4, 5]) = 0 [pid 5161] <... socketpair resumed>[4, 5]) = 0 [pid 5159] <... bpf resumed>) = 23 [pid 5163] setpgid(0, 0 [pid 5162] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5161] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5159] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5163] <... setpgid resumed>) = 0 [pid 5162] <... socketpair resumed>[6, 7]) = 0 [pid 5160] <... bpf resumed>) = 10 [pid 5163] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5162] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5161] <... socketpair resumed>[6, 7]) = 0 [pid 5159] <... openat resumed>) = 24 [pid 5160] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5162] <... bpf resumed>) = 8 [pid 5161] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5160] <... bpf resumed>) = 11 [pid 5163] <... openat resumed>) = 3 [pid 5162] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5161] <... bpf resumed>) = 8 [pid 5160] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5159] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5163] write(3, "1000", 4 [pid 5162] <... bpf resumed>) = 9 [pid 5161] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5160] <... bpf resumed>) = 12 [pid 5163] <... write resumed>) = 4 [pid 5162] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5160] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5159] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5163] close(3 [pid 5161] <... bpf resumed>) = 9 [pid 5160] <... bpf resumed>) = 13 [pid 5159] perf_event_open( [pid 5163] <... close resumed>) = 0 [pid 5160] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5163] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5162] <... bpf resumed>) = 10 [pid 5162] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5161] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5159] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5163] <... openat resumed>) = 3 [pid 5160] <... bpf resumed>) = 14 [pid 5163] socketpair(AF_UNIX, SOCK_STREAM, 0, [4, 5]) = 0 [pid 5161] <... bpf resumed>) = 10 [pid 5163] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5162] <... bpf resumed>) = 11 [pid 5163] <... socketpair resumed>[6, 7]) = 0 [pid 5162] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5163] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5162] <... bpf resumed>) = 12 [pid 5161] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5163] <... bpf resumed>) = 8 [pid 5162] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5160] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5159] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5163] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5162] <... bpf resumed>) = 13 [pid 5161] <... bpf resumed>) = 11 [pid 5160] <... socketpair resumed>[15, 16]) = 0 [pid 5163] <... bpf resumed>) = 9 [pid 5162] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5160] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5163] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5161] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5160] <... openat resumed>) = -1 EEXIST (File exists) [pid 5163] <... bpf resumed>) = 10 [pid 5162] <... bpf resumed>) = 14 [pid 5159] <... bpf resumed>) = 26 [pid 5160] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 => 6}, 8) = 0 [pid 5160] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4) = 17 [pid 5160] perf_event_open({type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5160] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5161] <... bpf resumed>) = 12 [pid 5160] <... socketpair resumed>[19, 20]) = 0 [pid 5163] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5162] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5161] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5159] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5163] <... bpf resumed>) = 11 [pid 5160] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5163] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5162] <... socketpair resumed>[15, 16]) = 0 [pid 5161] <... bpf resumed>) = 13 [pid 5159] <... bpf resumed>) = 27 [pid 5163] <... bpf resumed>) = 12 [pid 5160] <... bpf resumed>) = 21 [pid 5163] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5162] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5161] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5163] <... bpf resumed>) = 13 [pid 5162] <... openat resumed>) = -1 EEXIST (File exists) [pid 5161] <... bpf resumed>) = 14 [pid 5160] perf_event_open( [pid 5159] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5163] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5162] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 => 6}, 8) = 0 [pid 5161] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5160] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5159] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5162] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5161] <... socketpair resumed>[15, 16]) = 0 [pid 5163] <... bpf resumed>) = 14 [pid 5162] <... bpf resumed>) = 17 [pid 5163] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5162] perf_event_open( [pid 5161] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5163] <... socketpair resumed>[15, 16]) = 0 [pid 5162] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5161] <... openat resumed>) = -1 EEXIST (File exists) [pid 5160] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5159] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5163] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5162] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5161] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5160] <... bpf resumed>) = 23 [pid 5159] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5163] <... openat resumed>) = -1 EEXIST (File exists) [pid 5162] <... socketpair resumed>[19, 20]) = 0 [pid 5161] <... bpf resumed> => 6}, 8) = 0 [pid 5160] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5159] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1716 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5163] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5162] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5161] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5160] <... openat resumed>) = 24 [pid 5159] <... bpf resumed>) = 28 [pid 5163] <... bpf resumed> => 6}, 8) = 0 [pid 5160] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5159] close(28 [pid 5163] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=6}, 4 [pid 5161] <... bpf resumed>) = 17 [pid 5163] <... bpf resumed>) = 17 [pid 5161] perf_event_open( [pid 5160] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5159] <... close resumed>) = 0 [pid 5163] perf_event_open( [pid 5161] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5163] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5161] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5160] perf_event_open( [pid 5159] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5163] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5161] <... socketpair resumed>[19, 20]) = 0 [pid 5163] <... socketpair resumed>[19, 20]) = 0 [pid 5161] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5160] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5163] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5162] <... bpf resumed>) = 21 [pid 5162] perf_event_open( [pid 5160] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5159] <... socketpair resumed>[28, 29]) = 0 [pid 5163] <... bpf resumed>) = 21 [pid 5161] <... bpf resumed>) = 21 [pid 5159] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5163] perf_event_open( [pid 5161] perf_event_open( [pid 5163] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5161] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5163] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5161] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5160] <... bpf resumed>) = 26 [pid 5163] <... bpf resumed>) = 23 [pid 5162] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5161] <... bpf resumed>) = 23 [pid 5159] <... bpf resumed>) = 30 [pid 5161] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5163] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5162] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5161] <... openat resumed>) = 24 [pid 5160] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5159] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5163] <... openat resumed>) = 24 [pid 5159] <... bpf resumed>) = 0 [pid 5161] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5162] <... bpf resumed>) = 23 [pid 5159] exit_group(0 [pid 5163] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5161] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5163] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5162] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5161] perf_event_open( [pid 5163] perf_event_open( [pid 5161] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5159] <... exit_group resumed>) = ? [pid 5162] <... openat resumed>) = 24 [pid 5163] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5163] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5161] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5162] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5161] <... bpf resumed>) = 26 [pid 5160] <... bpf resumed>) = 27 [pid 5163] <... bpf resumed>) = 26 [pid 5162] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5160] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5162] perf_event_open( [pid 5160] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5163] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20) = 27 [pid 5162] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5160] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5159] +++ exited with 0 +++ [pid 5162] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5163] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5161] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5160] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5162] <... bpf resumed>) = 26 [pid 5161] <... bpf resumed>) = 27 [pid 5160] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 982 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 tot"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5159, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5163] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5162] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5161] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5163] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5161] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5160] <... bpf resumed>) = 28 [pid 5163] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5161] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH./strace-static-x86_64: Process 5164 attached [pid 5164] set_robust_list(0x555586eaa660, 24 [pid 5163] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 3855 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5164] <... set_robust_list resumed>) = 0 [pid 5162] <... bpf resumed>) = 27 [pid 5161] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5160] close(28 [pid 5090] <... clone resumed>, child_tidptr=0x555586eaa650) = 5164 [pid 5163] <... bpf resumed>) = 28 [pid 5164] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5161] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 944 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 tot"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5160] <... close resumed>) = 0 [pid 5164] <... prctl resumed>) = 0 [pid 5163] close(28 [pid 5162] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5160] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5164] setpgid(0, 0 [pid 5160] <... socketpair resumed>[28, 29]) = 0 [pid 5164] <... setpgid resumed>) = 0 [pid 5163] <... close resumed>) = 0 [pid 5160] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5164] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5163] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5162] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5161] <... bpf resumed>) = 28 [pid 5162] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5160] <... bpf resumed>) = 30 [pid 5163] <... socketpair resumed>[28, 29]) = 0 [pid 5164] <... openat resumed>) = 3 [pid 5162] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5161] close(28 [pid 5160] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5163] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5162] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1000 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5161] <... close resumed>) = 0 [pid 5164] write(3, "1000", 4 [pid 5163] <... bpf resumed>) = 30 [pid 5160] <... bpf resumed>) = 0 [pid 5161] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5164] <... write resumed>) = 4 [pid 5161] <... socketpair resumed>[28, 29]) = 0 [pid 5163] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5164] close(3 [pid 5163] <... bpf resumed>) = 0 [pid 5162] <... bpf resumed>) = 28 [pid 5161] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5160] exit_group(0 [pid 5164] <... close resumed>) = 0 [pid 5163] exit_group(0 [pid 5162] close(28 [pid 5164] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5163] <... exit_group resumed>) = ? [pid 5162] <... close resumed>) = 0 [pid 5161] <... bpf resumed>) = 30 [pid 5160] <... exit_group resumed>) = ? [pid 5164] <... openat resumed>) = 3 [pid 5164] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5163] +++ exited with 0 +++ [pid 5162] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5161] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5160] +++ exited with 0 +++ [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5160, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5163, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5162] <... socketpair resumed>[28, 29]) = 0 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5162] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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./strace-static-x86_64: Process 5166 attached ./strace-static-x86_64: Process 5165 attached [pid 5164] <... socketpair resumed>[4, 5]) = 0 [pid 5161] <... bpf resumed>) = 0 [pid 5093] <... clone resumed>, child_tidptr=0x555586eaa650) = 5166 [pid 5162] <... bpf resumed>) = 30 [pid 5089] <... clone resumed>, child_tidptr=0x555586eaa650) = 5165 [pid 5166] set_robust_list(0x555586eaa660, 24 [pid 5165] set_robust_list(0x555586eaa660, 24 [pid 5166] <... set_robust_list resumed>) = 0 [pid 5164] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5161] exit_group(0 [pid 5166] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5164] <... socketpair resumed>[6, 7]) = 0 [pid 5166] <... prctl resumed>) = 0 [pid 5165] <... set_robust_list resumed>) = 0 [pid 5164] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5162] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5166] setpgid(0, 0 [pid 5165] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5161] <... exit_group resumed>) = ? [pid 5162] <... bpf resumed>) = 0 [pid 5164] <... bpf resumed>) = 8 [pid 5166] <... setpgid resumed>) = 0 [pid 5165] <... prctl resumed>) = 0 [pid 5164] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5162] exit_group(0 [pid 5165] setpgid(0, 0 [pid 5162] <... exit_group resumed>) = ? [pid 5166] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5165] <... setpgid resumed>) = 0 [pid 5164] <... bpf resumed>) = 9 [pid 5166] <... openat resumed>) = 3 [pid 5165] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5166] write(3, "1000", 4 [pid 5165] <... openat resumed>) = 3 [pid 5164] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5162] +++ exited with 0 +++ [pid 5166] <... write resumed>) = 4 [pid 5165] write(3, "1000", 4 [pid 5166] close(3) = 0 [pid 5094] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5162, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5094] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5166] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5165] <... write resumed>) = 4 [pid 5164] <... bpf resumed>) = 10 [pid 5166] <... openat resumed>) = 3 [pid 5165] close(3./strace-static-x86_64: Process 5167 attached ) = 0 [pid 5167] set_robust_list(0x555586eaa660, 24 [pid 5166] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5165] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5164] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5094] <... clone resumed>, child_tidptr=0x555586eaa650) = 5167 [pid 5167] <... set_robust_list resumed>) = 0 [pid 5165] <... openat resumed>) = 3 [pid 5164] <... bpf resumed>) = 11 [pid 5164] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5167] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5166] <... socketpair resumed>[4, 5]) = 0 [pid 5165] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5164] <... bpf resumed>) = 12 [pid 5167] <... prctl resumed>) = 0 [pid 5166] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5165] <... socketpair resumed>[4, 5]) = 0 [pid 5164] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5167] setpgid(0, 0 [pid 5166] <... socketpair resumed>[6, 7]) = 0 [pid 5165] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5167] <... setpgid resumed>) = 0 [pid 5166] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5167] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5164] <... bpf resumed>) = 13 [pid 5166] <... bpf resumed>) = 8 [pid 5165] <... socketpair resumed>[6, 7]) = 0 [pid 5167] <... openat resumed>) = 3 [pid 5166] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5167] write(3, "1000", 4 [pid 5166] <... bpf resumed>) = 9 [pid 5165] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5164] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5167] <... write resumed>) = 4 [pid 5166] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5165] <... bpf resumed>) = 8 [pid 5165] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5167] close(3) = 0 [pid 5167] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5166] <... bpf resumed>) = 10 [pid 5165] <... bpf resumed>) = 9 [pid 5166] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5167] <... openat resumed>) = 3 [pid 5165] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5164] <... bpf resumed>) = 14 [pid 5164] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5167] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5164] <... socketpair resumed>[15, 16]) = 0 [pid 5164] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000) = -1 EEXIST (File exists) [pid 5167] <... socketpair resumed>[4, 5]) = 0 [pid 5165] <... bpf resumed>) = 10 [pid 5167] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5165] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5164] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 => 71}, 8) = 0 [pid 5164] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=71}, 4) = 17 [pid 5164] perf_event_open({type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5164] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [19, 20]) = 0 [pid 5164] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5167] <... socketpair resumed>[6, 7]) = 0 [pid 5167] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5166] <... bpf resumed>) = 11 [pid 5165] <... bpf resumed>) = 11 [pid 5164] <... bpf resumed>) = 21 [pid 5161] +++ exited with 0 +++ [pid 5167] <... bpf resumed>) = 8 [pid 5165] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5096] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5161, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5167] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5166] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5165] <... bpf resumed>) = 12 [pid 5096] restart_syscall(<... resuming interrupted clone ...> [pid 5167] <... bpf resumed>) = 9 [pid 5166] <... bpf resumed>) = 12 [pid 5165] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5164] perf_event_open( [pid 5096] <... restart_syscall resumed>) = 0 [pid 5167] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5166] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5165] <... bpf resumed>) = 13 [pid 5165] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5164] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5167] <... bpf resumed>) = 10 [pid 5166] <... bpf resumed>) = 13 [pid 5096] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5167] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16) = 11 [pid 5166] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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./strace-static-x86_64: Process 5168 attached [pid 5167] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5166] <... bpf resumed>) = 14 [pid 5165] <... bpf resumed>) = 14 [pid 5164] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5168] set_robust_list(0x555586eaa660, 24 [pid 5167] <... bpf resumed>) = 12 [pid 5166] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5165] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5096] <... clone resumed>, child_tidptr=0x555586eaa650) = 5168 [pid 5168] <... set_robust_list resumed>) = 0 [pid 5167] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5166] <... socketpair resumed>[15, 16]) = 0 [pid 5165] <... socketpair resumed>[15, 16]) = 0 [pid 5164] <... bpf resumed>) = 23 [pid 5168] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5165] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5168] <... prctl resumed>) = 0 [pid 5167] <... bpf resumed>) = 13 [pid 5166] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5165] <... openat resumed>) = -1 EEXIST (File exists) [pid 5164] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5168] setpgid(0, 0 [pid 5167] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5166] <... openat resumed>) = -1 EEXIST (File exists) [pid 5168] <... setpgid resumed>) = 0 [pid 5166] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5165] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5164] <... openat resumed>) = 24 [pid 5166] <... bpf resumed> => 71}, 8) = 0 [pid 5164] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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) = -1 EINVAL (Invalid argument) [pid 5164] perf_event_open( [pid 5168] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5167] <... bpf resumed>) = 14 [pid 5166] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=71}, 4 [pid 5165] <... bpf resumed> => 71}, 8) = 0 [pid 5164] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5164] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5168] <... openat resumed>) = 3 [pid 5167] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5166] <... bpf resumed>) = 17 [pid 5165] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=71}, 4 [pid 5166] perf_event_open( [pid 5165] <... bpf resumed>) = 17 [pid 5168] write(3, "1000", 4 [pid 5167] <... socketpair resumed>[15, 16]) = 0 [pid 5166] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5165] perf_event_open( [pid 5164] <... bpf resumed>) = 26 [pid 5168] <... write resumed>) = 4 [pid 5165] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5167] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5166] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5168] close(3) = 0 [pid 5168] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5167] <... openat resumed>) = -1 EEXIST (File exists) [pid 5166] <... socketpair resumed>[19, 20]) = 0 [pid 5165] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5168] <... openat resumed>) = 3 [pid 5168] socketpair(AF_UNIX, SOCK_STREAM, 0, [4, 5]) = 0 [pid 5168] socketpair(AF_UNIX, SOCK_STREAM, 0, [6, 7]) = 0 [pid 5167] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5165] <... socketpair resumed>[19, 20]) = 0 [pid 5164] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5166] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5168] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5167] <... bpf resumed> => 71}, 8) = 0 [pid 5165] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5164] <... bpf resumed>) = 27 [pid 5168] <... bpf resumed>) = 8 [pid 5167] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=71}, 4 [pid 5168] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5167] <... bpf resumed>) = 17 [pid 5164] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5168] <... bpf resumed>) = 9 [pid 5164] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5164] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5168] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5164] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1026 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5168] <... bpf resumed>) = 10 [pid 5167] perf_event_open( [pid 5166] <... bpf resumed>) = 21 [pid 5165] <... bpf resumed>) = 21 [pid 5168] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5167] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5166] perf_event_open( [pid 5164] <... bpf resumed>) = 28 [pid 5168] <... bpf resumed>) = 11 [pid 5167] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5165] perf_event_open( [pid 5168] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5166] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5167] <... socketpair resumed>[19, 20]) = 0 [pid 5168] <... bpf resumed>) = 12 [pid 5167] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5166] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5165] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5164] close(28 [pid 5168] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115) = 13 [pid 5167] <... bpf resumed>) = 21 [pid 5166] <... bpf resumed>) = 23 [pid 5165] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5164] <... close resumed>) = 0 [pid 5168] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5167] perf_event_open( [pid 5166] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5165] <... bpf resumed>) = 23 [pid 5164] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5165] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5168] <... bpf resumed>) = 14 [pid 5167] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5165] <... openat resumed>) = 24 [pid 5164] <... socketpair resumed>[28, 29]) = 0 [pid 5168] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5166] <... openat resumed>) = 24 [pid 5165] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5168] <... socketpair resumed>[15, 16]) = 0 [pid 5167] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5166] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5165] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5164] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5168] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5167] <... bpf resumed>) = 23 [pid 5166] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5165] perf_event_open( [pid 5167] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5166] perf_event_open( [pid 5168] <... openat resumed>) = -1 EEXIST (File exists) [pid 5168] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 => 71}, 8) = 0 [pid 5168] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=71}, 4) = 17 [pid 5164] <... bpf resumed>) = 30 [pid 5168] perf_event_open({type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5165] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5164] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5168] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [19, 20]) = 0 [pid 5164] <... bpf resumed>) = 0 [pid 5168] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5167] <... openat resumed>) = 24 [pid 5166] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5165] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5164] exit_group(0 [pid 5168] <... bpf resumed>) = 21 [pid 5168] perf_event_open({type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5167] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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) = -1 EINVAL (Invalid argument) [pid 5167] perf_event_open( [pid 5164] <... exit_group resumed>) = ? [pid 5168] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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) = 23 [pid 5168] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 24 [pid 5168] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5167] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5166] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5165] <... bpf resumed>) = 26 [pid 5164] +++ exited with 0 +++ [pid 5168] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5168] perf_event_open( [pid 5167] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5165] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5164, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5168] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5167] <... bpf resumed>) = 26 [pid 5166] <... bpf resumed>) = 26 [pid 5168] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5167] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5166] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5168] <... bpf resumed>) = 26 [pid 5167] <... bpf resumed>) = 27 [pid 5166] <... bpf resumed>) = 27 [pid 5165] <... bpf resumed>) = 27 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5167] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777./strace-static-x86_64: Process 5169 attached [pid 5168] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5166] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5165] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5169] set_robust_list(0x555586eaa660, 24 [pid 5167] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5166] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5165] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5090] <... clone resumed>, child_tidptr=0x555586eaa650) = 5169 [pid 5166] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5165] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5169] <... set_robust_list resumed>) = 0 [pid 5168] <... bpf resumed>) = 27 [pid 5167] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5166] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5169] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5168] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5167] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5166] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 930 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 tot"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5165] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5169] <... prctl resumed>) = 0 [pid 5168] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5167] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 956 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 tot"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5165] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 3487 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5169] setpgid(0, 0 [pid 5168] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5166] <... bpf resumed>) = 28 [pid 5165] <... bpf resumed>) = 28 [pid 5169] <... setpgid resumed>) = 0 [pid 5168] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5167] <... bpf resumed>) = 28 [pid 5165] close(28 [pid 5169] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5168] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1065 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5167] close(28 [pid 5166] close(28 [pid 5169] <... openat resumed>) = 3 [pid 5165] <... close resumed>) = 0 [pid 5165] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5168] <... bpf resumed>) = 28 [pid 5167] <... close resumed>) = 0 [pid 5166] <... close resumed>) = 0 [pid 5165] <... socketpair resumed>[28, 29]) = 0 [pid 5169] write(3, "1000", 4 [pid 5165] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5169] <... write resumed>) = 4 [pid 5168] close(28 [pid 5167] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5166] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5165] <... bpf resumed>) = 30 [pid 5169] close(3 [pid 5165] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5167] <... socketpair resumed>[28, 29]) = 0 [pid 5169] <... close resumed>) = 0 [pid 5168] <... close resumed>) = 0 [pid 5166] <... socketpair resumed>[28, 29]) = 0 [pid 5165] <... bpf resumed>) = 0 [pid 5169] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5168] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5167] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5166] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5165] exit_group(0 [pid 5169] <... openat resumed>) = 3 [pid 5168] <... socketpair resumed>[28, 29]) = 0 [pid 5167] <... bpf resumed>) = 30 [pid 5169] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5168] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5167] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5166] <... bpf resumed>) = 30 [pid 5165] <... exit_group resumed>) = ? [pid 5169] <... socketpair resumed>[4, 5]) = 0 [pid 5168] <... bpf resumed>) = 30 [pid 5167] <... bpf resumed>) = 0 [pid 5166] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5168] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5167] exit_group(0 [pid 5166] <... bpf resumed>) = 0 [pid 5169] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5168] <... bpf resumed>) = 0 [pid 5167] <... exit_group resumed>) = ? [pid 5166] exit_group(0 [pid 5169] <... socketpair resumed>[6, 7]) = 0 [pid 5168] exit_group(0 [pid 5166] <... exit_group resumed>) = ? [pid 5165] +++ exited with 0 +++ [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5165, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5169] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5168] <... exit_group resumed>) = ? [pid 5167] +++ exited with 0 +++ [pid 5169] <... bpf resumed>) = 8 [pid 5166] +++ exited with 0 +++ [pid 5169] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5094] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5167, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5166, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- ./strace-static-x86_64: Process 5170 attached [pid 5169] <... bpf resumed>) = 9 [pid 5094] restart_syscall(<... resuming interrupted clone ...> [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5170] set_robust_list(0x555586eaa660, 24 [pid 5169] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5094] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 5171 attached [pid 5170] <... set_robust_list resumed>) = 0 [pid 5089] <... clone resumed>, child_tidptr=0x555586eaa650) = 5170 [pid 5171] set_robust_list(0x555586eaa660, 24) = 0 [pid 5170] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5171] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5169] <... bpf resumed>) = 10 [pid 5093] <... clone resumed>, child_tidptr=0x555586eaa650) = 5171 [pid 5171] <... prctl resumed>) = 0 [pid 5170] <... prctl resumed>) = 0 [pid 5169] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5094] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5171] setpgid(0, 0 [pid 5170] setpgid(0, 0 [pid 5169] <... bpf resumed>) = 11 [pid 5170] <... setpgid resumed>) = 0 [pid 5169] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5170] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5169] <... bpf resumed>) = 12 ./strace-static-x86_64: Process 5172 attached [pid 5171] <... setpgid resumed>) = 0 [pid 5169] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5172] set_robust_list(0x555586eaa660, 24 [pid 5170] <... openat resumed>) = 3 [pid 5169] <... bpf resumed>) = 13 [pid 5172] <... set_robust_list resumed>) = 0 [pid 5170] write(3, "1000", 4 [pid 5094] <... clone resumed>, child_tidptr=0x555586eaa650) = 5172 [pid 5172] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5171] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5170] <... write resumed>) = 4 [pid 5169] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5172] <... prctl resumed>) = 0 [pid 5172] setpgid(0, 0 [pid 5171] <... openat resumed>) = 3 [pid 5170] close(3 [pid 5169] <... bpf resumed>) = 14 [pid 5172] <... setpgid resumed>) = 0 [pid 5171] write(3, "1000", 4 [pid 5170] <... close resumed>) = 0 [pid 5169] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5172] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5171] <... write resumed>) = 4 [pid 5170] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5169] <... socketpair resumed>[15, 16]) = 0 [pid 5171] close(3 [pid 5170] <... openat resumed>) = 3 [pid 5169] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5172] <... openat resumed>) = 3 [pid 5171] <... close resumed>) = 0 [pid 5170] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5169] <... openat resumed>) = -1 EEXIST (File exists) [pid 5172] write(3, "1000", 4 [pid 5171] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5170] <... socketpair resumed>[4, 5]) = 0 [pid 5169] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5172] <... write resumed>) = 4 [pid 5169] <... bpf resumed> => 71}, 8) = 0 [pid 5172] close(3) = 0 [pid 5171] <... openat resumed>) = 3 [pid 5170] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5169] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=71}, 4 [pid 5171] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5169] <... bpf resumed>) = 17 [pid 5172] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5171] <... socketpair resumed>[4, 5]) = 0 [pid 5170] <... socketpair resumed>[6, 7]) = 0 [pid 5169] perf_event_open( [pid 5171] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5170] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5172] <... openat resumed>) = 3 [pid 5171] <... socketpair resumed>[6, 7]) = 0 [pid 5169] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5171] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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) = 8 [pid 5169] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5172] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5171] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5172] <... socketpair resumed>[4, 5]) = 0 [pid 5169] <... socketpair resumed>[19, 20]) = 0 [pid 5172] socketpair(AF_UNIX, SOCK_STREAM, 0, [6, 7]) = 0 [pid 5171] <... bpf resumed>) = 9 [pid 5171] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5172] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5170] <... bpf resumed>) = 8 [pid 5169] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5172] <... bpf resumed>) = 8 [pid 5171] <... bpf resumed>) = 10 [pid 5170] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5172] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5170] <... bpf resumed>) = 9 [pid 5169] <... bpf resumed>) = 21 [pid 5172] <... bpf resumed>) = 9 [pid 5171] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5170] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5168] +++ exited with 0 +++ [pid 5169] perf_event_open( [pid 5172] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5171] <... bpf resumed>) = 11 [pid 5096] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5168, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5171] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5170] <... bpf resumed>) = 10 [pid 5169] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5172] <... bpf resumed>) = 10 [pid 5171] <... bpf resumed>) = 12 [pid 5170] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5171] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5170] <... bpf resumed>) = 11 [pid 5169] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5096] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5172] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5171] <... bpf resumed>) = 13 [pid 5170] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5169] <... bpf resumed>) = 23 ./strace-static-x86_64: Process 5173 attached [pid 5172] <... bpf resumed>) = 11 [pid 5171] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5170] <... bpf resumed>) = 12 [pid 5173] set_robust_list(0x555586eaa660, 24 [pid 5172] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5170] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5169] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5096] <... clone resumed>, child_tidptr=0x555586eaa650) = 5173 [pid 5173] <... set_robust_list resumed>) = 0 [pid 5172] <... bpf resumed>) = 12 [pid 5171] <... bpf resumed>) = 14 [pid 5170] <... bpf resumed>) = 13 [pid 5170] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5173] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5172] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5171] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5169] <... openat resumed>) = 24 [pid 5173] <... prctl resumed>) = 0 [pid 5171] <... socketpair resumed>[15, 16]) = 0 [pid 5172] <... bpf resumed>) = 13 [pid 5169] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5173] setpgid(0, 0 [pid 5172] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5171] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5170] <... bpf resumed>) = 14 [pid 5169] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5173] <... setpgid resumed>) = 0 [pid 5171] <... openat resumed>) = -1 EEXIST (File exists) [pid 5170] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5169] perf_event_open( [pid 5173] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5172] <... bpf resumed>) = 14 [pid 5171] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5170] <... socketpair resumed>[15, 16]) = 0 [pid 5169] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5173] <... openat resumed>) = 3 [pid 5172] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5173] write(3, "1000", 4 [pid 5171] <... bpf resumed> => 71}, 8) = 0 [pid 5170] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5169] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5173] <... write resumed>) = 4 [pid 5172] <... socketpair resumed>[15, 16]) = 0 [pid 5171] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=71}, 4 [pid 5170] <... openat resumed>) = -1 EEXIST (File exists) [pid 5172] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000) = -1 EEXIST (File exists) [pid 5172] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5173] close(3 [pid 5171] <... bpf resumed>) = 17 [pid 5170] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5169] <... bpf resumed>) = 26 [pid 5169] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5173] <... close resumed>) = 0 [pid 5172] <... bpf resumed> => 71}, 8) = 0 [pid 5171] perf_event_open( [pid 5170] <... bpf resumed> => 71}, 8) = 0 [pid 5173] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5172] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=71}, 4 [pid 5171] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5170] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=71}, 4 [pid 5169] <... bpf resumed>) = 27 [pid 5173] <... openat resumed>) = 3 [pid 5172] <... bpf resumed>) = 17 [pid 5171] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5170] <... bpf resumed>) = 17 [pid 5169] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5172] perf_event_open( [pid 5170] perf_event_open( [pid 5173] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5172] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5171] <... socketpair resumed>[19, 20]) = 0 [pid 5170] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5169] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5173] <... socketpair resumed>[4, 5]) = 0 [pid 5172] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5171] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5170] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5169] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5173] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5172] <... socketpair resumed>[19, 20]) = 0 [pid 5169] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5173] <... socketpair resumed>[6, 7]) = 0 [pid 5172] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5171] <... bpf resumed>) = 21 [pid 5169] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1366 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5173] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5170] <... socketpair resumed>[19, 20]) = 0 [pid 5171] perf_event_open( [pid 5173] <... bpf resumed>) = 8 [pid 5172] <... bpf resumed>) = 21 [pid 5170] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5169] <... bpf resumed>) = 28 [pid 5173] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5172] perf_event_open( [pid 5171] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5169] close(28 [pid 5173] <... bpf resumed>) = 9 [pid 5171] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5169] <... close resumed>) = 0 [pid 5173] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5172] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5171] <... bpf resumed>) = 23 [pid 5170] <... bpf resumed>) = 21 [pid 5169] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5171] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5169] <... socketpair resumed>[28, 29]) = 0 [pid 5171] <... openat resumed>) = 24 [pid 5173] <... bpf resumed>) = 10 [pid 5172] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5173] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5171] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5170] perf_event_open( [pid 5169] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5173] <... bpf resumed>) = 11 [pid 5172] <... bpf resumed>) = 23 [pid 5171] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5170] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5169] <... bpf resumed>) = 30 [pid 5173] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5172] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5171] perf_event_open( [pid 5170] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5169] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5173] <... bpf resumed>) = 12 [pid 5172] <... openat resumed>) = 24 [pid 5169] <... bpf resumed>) = 0 [pid 5171] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5169] exit_group(0 [pid 5173] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5169] <... exit_group resumed>) = ? [pid 5173] <... bpf resumed>) = 13 [pid 5172] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5171] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5170] <... bpf resumed>) = 23 [pid 5173] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5172] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5169] +++ exited with 0 +++ [pid 5170] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5172] perf_event_open( [pid 5170] <... openat resumed>) = 24 [pid 5173] <... bpf resumed>) = 14 [pid 5172] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5171] <... bpf resumed>) = 26 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5169, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5171] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5170] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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./strace-static-x86_64: Process 5174 attached [pid 5173] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5171] <... bpf resumed>) = 27 [pid 5170] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5174] set_robust_list(0x555586eaa660, 24) = 0 [pid 5174] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5170] perf_event_open( [pid 5173] <... socketpair resumed>[15, 16]) = 0 [pid 5173] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5174] <... prctl resumed>) = 0 [pid 5172] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5171] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5170] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5090] <... clone resumed>, child_tidptr=0x555586eaa650) = 5174 [pid 5174] setpgid(0, 0 [pid 5173] <... openat resumed>) = -1 EEXIST (File exists) [pid 5174] <... setpgid resumed>) = 0 [pid 5173] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 => 71}, 8) = 0 [pid 5170] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5174] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5173] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=71}, 4 [pid 5171] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5170] <... bpf resumed>) = 26 [pid 5173] <... bpf resumed>) = 17 [pid 5173] perf_event_open( [pid 5171] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5173] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5171] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5171] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1008 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5170] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5174] write(3, "1000", 4 [pid 5173] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5172] <... bpf resumed>) = 26 [pid 5174] <... write resumed>) = 4 [pid 5171] <... bpf resumed>) = 28 [pid 5170] <... bpf resumed>) = 27 [pid 5173] <... socketpair resumed>[19, 20]) = 0 [pid 5170] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5174] close(3 [pid 5173] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5172] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5171] close(28 [pid 5174] <... close resumed>) = 0 [pid 5173] <... bpf resumed>) = 21 [pid 5171] <... close resumed>) = 0 [pid 5170] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5174] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5172] <... bpf resumed>) = 27 [pid 5172] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5174] <... openat resumed>) = 3 [pid 5172] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5171] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5170] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5174] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5173] perf_event_open( [pid 5172] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5171] <... socketpair resumed>[28, 29]) = 0 [pid 5170] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5174] <... socketpair resumed>[4, 5]) = 0 [pid 5172] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5171] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5170] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 931 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 tot"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5174] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5173] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5171] <... bpf resumed>) = 30 [pid 5174] <... socketpair resumed>[6, 7]) = 0 [pid 5172] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 2162 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5173] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5170] <... bpf resumed>) = 28 [pid 5173] <... bpf resumed>) = 23 [pid 5171] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5170] close(28 [pid 5172] <... bpf resumed>) = 28 [pid 5171] <... bpf resumed>) = 0 [pid 5170] <... close resumed>) = 0 [pid 5174] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5173] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5172] close(28 [pid 5171] exit_group(0 [pid 5172] <... close resumed>) = 0 [pid 5171] <... exit_group resumed>) = ? [pid 5170] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5174] <... bpf resumed>) = 8 [pid 5173] <... openat resumed>) = 24 [pid 5172] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5170] <... socketpair resumed>[28, 29]) = 0 [pid 5174] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5173] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5172] <... socketpair resumed>[28, 29]) = 0 [pid 5170] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5174] <... bpf resumed>) = 9 [pid 5173] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5172] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5171] +++ exited with 0 +++ [pid 5170] <... bpf resumed>) = 30 [pid 5173] perf_event_open( [pid 5172] <... bpf resumed>) = 30 [pid 5170] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5174] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5173] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5170] <... bpf resumed>) = 0 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5171, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5172] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5173] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5172] <... bpf resumed>) = 0 [pid 5170] exit_group(0 [pid 5174] <... bpf resumed>) = 10 [pid 5174] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5172] exit_group(0 [pid 5170] <... exit_group resumed>) = ? [pid 5174] <... bpf resumed>) = 11 [pid 5174] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5173] <... bpf resumed>) = 26 [pid 5172] <... exit_group resumed>) = ? [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5174] <... bpf resumed>) = 12 [pid 5174] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115) = 13 [pid 5173] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20./strace-static-x86_64: Process 5175 attached ) = 27 [pid 5170] +++ exited with 0 +++ [pid 5174] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5170, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5175] set_robust_list(0x555586eaa660, 24 [pid 5174] <... bpf resumed>) = 14 [pid 5172] +++ exited with 0 +++ [pid 5093] <... clone resumed>, child_tidptr=0x555586eaa650) = 5175 [pid 5175] <... set_robust_list resumed>) = 0 [pid 5173] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5175] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5094] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5172, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5175] <... prctl resumed>) = 0 [pid 5173] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5175] setpgid(0, 0 [pid 5173] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5175] <... setpgid resumed>) = 0 [pid 5173] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5175] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5094] restart_syscall(<... resuming interrupted clone ...> [pid 5174] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5175] <... openat resumed>) = 3 [pid 5173] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1708 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5174] <... socketpair resumed>[15, 16]) = 0 [pid 5094] <... restart_syscall resumed>) = 0 [pid 5175] write(3, "1000", 4 [pid 5174] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5173] <... bpf resumed>) = 28 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5175] <... write resumed>) = 4 [pid 5174] <... openat resumed>) = -1 EEXIST (File exists) [pid 5173] close(28 [pid 5175] close(3 [pid 5174] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5175] <... close resumed>) = 0 [pid 5173] <... close resumed>) = 0 [pid 5094] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5175] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000) = 3 [pid 5173] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5175] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5173] <... socketpair resumed>[28, 29]) = 0 ./strace-static-x86_64: Process 5177 attached ./strace-static-x86_64: Process 5176 attached [pid 5175] <... socketpair resumed>[4, 5]) = 0 [pid 5174] <... bpf resumed> => 71}, 8) = 0 [pid 5177] set_robust_list(0x555586eaa660, 24 [pid 5176] set_robust_list(0x555586eaa660, 24 [pid 5174] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=71}, 4 [pid 5175] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5173] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5177] <... set_robust_list resumed>) = 0 [pid 5176] <... set_robust_list resumed>) = 0 [pid 5175] <... socketpair resumed>[6, 7]) = 0 [pid 5174] <... bpf resumed>) = 17 [pid 5173] <... bpf resumed>) = 30 [pid 5094] <... clone resumed>, child_tidptr=0x555586eaa650) = 5176 [pid 5089] <... clone resumed>, child_tidptr=0x555586eaa650) = 5177 [pid 5175] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5173] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5177] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5176] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5175] <... bpf resumed>) = 8 [pid 5174] perf_event_open( [pid 5173] <... bpf resumed>) = 0 [pid 5177] <... prctl resumed>) = 0 [pid 5176] <... prctl resumed>) = 0 [pid 5175] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5174] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5177] setpgid(0, 0 [pid 5176] setpgid(0, 0 [pid 5177] <... setpgid resumed>) = 0 [pid 5176] <... setpgid resumed>) = 0 [pid 5174] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5177] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5175] <... bpf resumed>) = 9 [pid 5174] <... socketpair resumed>[19, 20]) = 0 [pid 5173] exit_group(0 [pid 5176] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5175] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5173] <... exit_group resumed>) = ? [pid 5177] <... openat resumed>) = 3 [pid 5176] <... openat resumed>) = 3 [pid 5175] <... bpf resumed>) = 10 [pid 5174] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5177] write(3, "1000", 4 [pid 5175] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5177] <... write resumed>) = 4 [pid 5176] write(3, "1000", 4 [pid 5177] close(3 [pid 5176] <... write resumed>) = 4 [pid 5175] <... bpf resumed>) = 11 [pid 5177] <... close resumed>) = 0 [pid 5176] close(3 [pid 5175] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5177] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5176] <... close resumed>) = 0 [pid 5175] <... bpf resumed>) = 12 [pid 5174] <... bpf resumed>) = 21 [pid 5176] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5175] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5177] <... openat resumed>) = 3 [pid 5176] <... openat resumed>) = 3 [pid 5175] <... bpf resumed>) = 13 [pid 5174] perf_event_open( [pid 5177] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5176] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5175] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5177] <... socketpair resumed>[4, 5]) = 0 [pid 5176] <... socketpair resumed>[4, 5]) = 0 [pid 5175] <... bpf resumed>) = 14 [pid 5177] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5176] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5175] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5177] <... socketpair resumed>[6, 7]) = 0 [pid 5176] <... socketpair resumed>[6, 7]) = 0 [pid 5174] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5173] +++ exited with 0 +++ [pid 5177] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5176] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5175] <... socketpair resumed>[15, 16]) = 0 [pid 5174] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5096] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5173, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5177] <... bpf resumed>) = 8 [pid 5176] <... bpf resumed>) = 8 [pid 5175] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5176] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5175] <... openat resumed>) = -1 EEXIST (File exists) [pid 5176] <... bpf resumed>) = 9 [pid 5175] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5174] <... bpf resumed>) = 23 [pid 5177] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5176] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5175] <... bpf resumed> => 71}, 8) = 0 [pid 5177] <... bpf resumed>) = 9 [pid 5174] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5175] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=71}, 4 [pid 5096] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5176] <... bpf resumed>) = 10 [pid 5175] <... bpf resumed>) = 17 [pid 5176] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5175] perf_event_open( [pid 5176] <... bpf resumed>) = 11 [pid 5175] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5175] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5176] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5175] <... socketpair resumed>[19, 20]) = 0 [pid 5177] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5174] <... openat resumed>) = 24 [pid 5176] <... bpf resumed>) = 12 [pid 5175] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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./strace-static-x86_64: Process 5178 attached [pid 5176] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5175] <... bpf resumed>) = 21 [pid 5178] set_robust_list(0x555586eaa660, 24 [pid 5177] <... bpf resumed>) = 10 [pid 5176] <... bpf resumed>) = 13 [pid 5174] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5177] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5175] perf_event_open( [pid 5096] <... clone resumed>, child_tidptr=0x555586eaa650) = 5178 [pid 5174] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5178] <... set_robust_list resumed>) = 0 [pid 5176] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5178] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5177] <... bpf resumed>) = 11 [pid 5175] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5174] perf_event_open( [pid 5178] <... prctl resumed>) = 0 [pid 5176] <... bpf resumed>) = 14 [pid 5178] setpgid(0, 0 [pid 5177] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5178] <... setpgid resumed>) = 0 [pid 5176] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5175] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5178] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5177] <... bpf resumed>) = 12 [pid 5176] <... socketpair resumed>[15, 16]) = 0 [pid 5174] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5178] <... openat resumed>) = 3 [pid 5177] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5176] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5175] <... bpf resumed>) = 23 [pid 5178] write(3, "1000", 4 [pid 5177] <... bpf resumed>) = 13 [pid 5176] <... openat resumed>) = -1 EEXIST (File exists) [pid 5178] <... write resumed>) = 4 [pid 5176] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5174] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5175] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5178] close(3 [pid 5177] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5176] <... bpf resumed> => 71}, 8) = 0 [pid 5178] <... close resumed>) = 0 [pid 5176] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=71}, 4 [pid 5175] <... openat resumed>) = 24 [pid 5178] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5176] <... bpf resumed>) = 17 [pid 5178] <... openat resumed>) = 3 [pid 5176] perf_event_open({type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5178] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5177] <... bpf resumed>) = 14 [pid 5175] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5174] <... bpf resumed>) = 26 [pid 5177] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5176] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5178] <... socketpair resumed>[4, 5]) = 0 [pid 5175] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5174] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5178] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5177] <... socketpair resumed>[15, 16]) = 0 [pid 5176] <... socketpair resumed>[19, 20]) = 0 [pid 5175] perf_event_open( [pid 5174] <... bpf resumed>) = 27 [pid 5178] <... socketpair resumed>[6, 7]) = 0 [pid 5177] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5176] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5178] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5177] <... openat resumed>) = -1 EEXIST (File exists) [pid 5175] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5174] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5178] <... bpf resumed>) = 8 [pid 5176] <... bpf resumed>) = 21 [pid 5177] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5178] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5176] perf_event_open( [pid 5174] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5177] <... bpf resumed> => 71}, 8) = 0 [pid 5175] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5178] <... bpf resumed>) = 9 [pid 5177] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=71}, 4 [pid 5174] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5176] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5177] <... bpf resumed>) = 17 [pid 5176] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5174] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5178] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5177] perf_event_open( [pid 5176] <... bpf resumed>) = 23 [pid 5176] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5174] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 2521 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5177] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5176] <... openat resumed>) = 24 [pid 5175] <... bpf resumed>) = 26 [pid 5176] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5178] <... bpf resumed>) = 10 [pid 5177] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5175] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5174] <... bpf resumed>) = 28 [pid 5178] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5177] <... socketpair resumed>[19, 20]) = 0 [pid 5176] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5178] <... bpf resumed>) = 11 [pid 5174] close(28 [pid 5177] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5176] perf_event_open( [pid 5174] <... close resumed>) = 0 [pid 5178] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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) = 12 [pid 5176] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5178] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5177] <... bpf resumed>) = 21 [pid 5175] <... bpf resumed>) = 27 [pid 5174] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5178] <... bpf resumed>) = 13 [pid 5177] perf_event_open( [pid 5176] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5174] <... socketpair resumed>[28, 29]) = 0 [pid 5178] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5177] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5175] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5174] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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) = 30 [pid 5174] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32) = 0 [pid 5177] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5175] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5174] exit_group(0) = ? [pid 5176] <... bpf resumed>) = 26 [pid 5178] <... bpf resumed>) = 14 [pid 5177] <... bpf resumed>) = 23 [pid 5176] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5175] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5177] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5175] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5178] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5177] <... openat resumed>) = 24 [pid 5176] <... bpf resumed>) = 27 [pid 5175] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 2018 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5178] <... socketpair resumed>[15, 16]) = 0 [pid 5177] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5176] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5174] +++ exited with 0 +++ [pid 5178] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5175] <... bpf resumed>) = 28 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5174, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5178] <... openat resumed>) = -1 EEXIST (File exists) [pid 5177] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5176] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5090] restart_syscall(<... resuming interrupted clone ...> [pid 5175] close(28 [pid 5090] <... restart_syscall resumed>) = 0 [pid 5176] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5178] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5177] perf_event_open( [pid 5175] <... close resumed>) = 0 [pid 5178] <... bpf resumed> => 71}, 8) = 0 [pid 5176] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5178] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=71}, 4 [pid 5175] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5178] <... bpf resumed>) = 17 [pid 5177] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5176] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 3752 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5175] <... socketpair resumed>[28, 29]) = 0 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5178] perf_event_open( [pid 5177] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5175] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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./strace-static-x86_64: Process 5180 attached [pid 5178] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5176] <... bpf resumed>) = 28 [pid 5178] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5177] <... bpf resumed>) = 26 [pid 5175] <... bpf resumed>) = 30 [pid 5180] set_robust_list(0x555586eaa660, 24 [pid 5176] close(28 [pid 5090] <... clone resumed>, child_tidptr=0x555586eaa650) = 5180 [pid 5180] <... set_robust_list resumed>) = 0 [pid 5178] <... socketpair resumed>[19, 20]) = 0 [pid 5176] <... close resumed>) = 0 [pid 5180] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5178] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5177] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5176] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5175] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5180] <... prctl resumed>) = 0 [pid 5176] <... socketpair resumed>[28, 29]) = 0 [pid 5180] setpgid(0, 0 [pid 5176] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5175] <... bpf resumed>) = 0 [pid 5178] <... bpf resumed>) = 21 [pid 5177] <... bpf resumed>) = 27 [pid 5175] exit_group(0 [pid 5180] <... setpgid resumed>) = 0 [pid 5178] perf_event_open( [pid 5176] <... bpf resumed>) = 30 [pid 5175] <... exit_group resumed>) = ? [pid 5180] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5178] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5177] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5176] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5178] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5177] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5180] write(3, "1000", 4 [pid 5178] <... bpf resumed>) = 23 [pid 5177] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5176] <... bpf resumed>) = 0 [pid 5180] <... write resumed>) = 4 [pid 5178] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5177] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5176] exit_group(0 [pid 5175] +++ exited with 0 +++ [pid 5180] close(3 [pid 5177] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1072 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5176] <... exit_group resumed>) = ? [pid 5180] <... close resumed>) = 0 [pid 5178] <... openat resumed>) = 24 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5175, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5093] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5180] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5178] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5180] <... openat resumed>) = 3 [pid 5178] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5177] <... bpf resumed>) = 28 [pid 5178] perf_event_open( [pid 5180] socketpair(AF_UNIX, SOCK_STREAM, 0, [4, 5]) = 0 [pid 5180] socketpair(AF_UNIX, SOCK_STREAM, 0, [6, 7]) = 0 [pid 5178] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5177] close(28 [pid 5176] +++ exited with 0 +++ [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5178] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5094] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5176, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5180] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5177] <... close resumed>) = 0 [pid 5180] <... bpf resumed>) = 8 [pid 5177] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5180] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5177] <... socketpair resumed>[28, 29]) = 0 [pid 5094] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5180] <... bpf resumed>) = 9 [pid 5178] <... bpf resumed>) = 26 ./strace-static-x86_64: Process 5181 attached [pid 5180] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5177] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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./strace-static-x86_64: Process 5182 attached [pid 5181] set_robust_list(0x555586eaa660, 24 [pid 5178] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5094] <... clone resumed>, child_tidptr=0x555586eaa650) = 5181 [pid 5182] set_robust_list(0x555586eaa660, 24 [pid 5181] <... set_robust_list resumed>) = 0 [pid 5180] <... bpf resumed>) = 10 [pid 5177] <... bpf resumed>) = 30 [pid 5093] <... clone resumed>, child_tidptr=0x555586eaa650) = 5182 [pid 5181] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5182] <... set_robust_list resumed>) = 0 [pid 5181] <... prctl resumed>) = 0 [pid 5182] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5181] setpgid(0, 0 [pid 5177] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5181] <... setpgid resumed>) = 0 [pid 5177] <... bpf resumed>) = 0 [pid 5181] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5177] exit_group(0) = ? [pid 5182] <... prctl resumed>) = 0 [pid 5178] <... bpf resumed>) = 27 [pid 5182] setpgid(0, 0 [pid 5181] <... openat resumed>) = 3 [pid 5180] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5178] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5182] <... setpgid resumed>) = 0 [pid 5181] write(3, "1000", 4 [pid 5182] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5180] <... bpf resumed>) = 11 [pid 5178] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5177] +++ exited with 0 +++ [pid 5182] <... openat resumed>) = 3 [pid 5181] <... write resumed>) = 4 [pid 5180] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5178] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5182] write(3, "1000", 4 [pid 5181] close(3 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5177, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5182] <... write resumed>) = 4 [pid 5180] <... bpf resumed>) = 12 [pid 5178] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5181] <... close resumed>) = 0 [pid 5182] close(3 [pid 5178] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 953 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 tot"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5182] <... close resumed>) = 0 [pid 5181] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5180] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5182] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000) = 3 [pid 5181] <... openat resumed>) = 3 [pid 5180] <... bpf resumed>) = 13 [pid 5178] <... bpf resumed>) = 28 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5182] socketpair(AF_UNIX, SOCK_STREAM, 0, [4, 5]) = 0 ./strace-static-x86_64: Process 5183 attached [pid 5182] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5181] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5180] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5178] close(28 [pid 5183] set_robust_list(0x555586eaa660, 24 [pid 5182] <... socketpair resumed>[6, 7]) = 0 [pid 5181] <... socketpair resumed>[4, 5]) = 0 [pid 5183] <... set_robust_list resumed>) = 0 [pid 5178] <... close resumed>) = 0 [pid 5181] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5089] <... clone resumed>, child_tidptr=0x555586eaa650) = 5183 [pid 5183] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5178] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5183] <... prctl resumed>) = 0 [pid 5183] setpgid(0, 0 [pid 5181] <... socketpair resumed>[6, 7]) = 0 [pid 5178] <... socketpair resumed>[28, 29]) = 0 [pid 5183] <... setpgid resumed>) = 0 [pid 5183] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5182] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5183] <... openat resumed>) = 3 [pid 5182] <... bpf resumed>) = 8 [pid 5181] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5178] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5183] write(3, "1000", 4 [pid 5182] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5181] <... bpf resumed>) = 8 [pid 5180] <... bpf resumed>) = 14 [pid 5183] <... write resumed>) = 4 [pid 5178] <... bpf resumed>) = 30 [pid 5183] close(3) = 0 [pid 5183] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5181] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5180] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5182] <... bpf resumed>) = 9 [pid 5183] <... openat resumed>) = 3 [pid 5178] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5183] socketpair(AF_UNIX, SOCK_STREAM, 0, [4, 5]) = 0 [pid 5183] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5182] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5181] <... bpf resumed>) = 9 [pid 5180] <... socketpair resumed>[15, 16]) = 0 [pid 5178] <... bpf resumed>) = 0 [pid 5178] exit_group(0 [pid 5183] <... socketpair resumed>[6, 7]) = 0 [pid 5178] <... exit_group resumed>) = ? [pid 5183] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5182] <... bpf resumed>) = 10 [pid 5181] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5180] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5183] <... bpf resumed>) = 8 [pid 5182] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5180] <... openat resumed>) = -1 EEXIST (File exists) [pid 5183] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5182] <... bpf resumed>) = 11 [pid 5181] <... bpf resumed>) = 10 [pid 5180] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5182] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5181] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5180] <... bpf resumed> => 71}, 8) = 0 [pid 5183] <... bpf resumed>) = 9 [pid 5182] <... bpf resumed>) = 12 [pid 5181] <... bpf resumed>) = 11 [pid 5180] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=71}, 4 [pid 5183] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5182] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5181] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5180] <... bpf resumed>) = 17 [pid 5182] <... bpf resumed>) = 13 [pid 5181] <... bpf resumed>) = 12 [pid 5182] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5181] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5183] <... bpf resumed>) = 10 [pid 5180] perf_event_open( [pid 5183] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5182] <... bpf resumed>) = 14 [pid 5181] <... bpf resumed>) = 13 [pid 5180] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5183] <... bpf resumed>) = 11 [pid 5182] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5181] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5180] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5183] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5182] <... socketpair resumed>[15, 16]) = 0 [pid 5180] <... socketpair resumed>[19, 20]) = 0 [pid 5183] <... bpf resumed>) = 12 [pid 5182] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5181] <... bpf resumed>) = 14 [pid 5180] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5183] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5182] <... openat resumed>) = -1 EEXIST (File exists) [pid 5181] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [15, 16]) = 0 [pid 5181] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000) = -1 EEXIST (File exists) [pid 5180] <... bpf resumed>) = 21 [pid 5181] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5183] <... bpf resumed>) = 13 [pid 5182] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5180] perf_event_open( [pid 5183] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5182] <... bpf resumed> => 71}, 8) = 0 [pid 5181] <... bpf resumed> => 71}, 8) = 0 [pid 5178] +++ exited with 0 +++ [pid 5182] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=71}, 4 [pid 5181] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=71}, 4 [pid 5180] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5096] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5178, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5182] <... bpf resumed>) = 17 [pid 5182] perf_event_open({type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5183] <... bpf resumed>) = 14 [pid 5182] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5183] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5181] <... bpf resumed>) = 17 [pid 5180] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5183] <... socketpair resumed>[15, 16]) = 0 [pid 5182] <... socketpair resumed>[19, 20]) = 0 [pid 5181] perf_event_open( [pid 5183] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5182] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5181] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5180] <... bpf resumed>) = 23 [pid 5096] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5183] <... openat resumed>) = -1 EEXIST (File exists) [pid 5182] <... bpf resumed>) = 21 [pid 5183] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5181] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5180] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000./strace-static-x86_64: Process 5184 attached [pid 5183] <... bpf resumed> => 71}, 8) = 0 [pid 5184] set_robust_list(0x555586eaa660, 24 [pid 5183] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=71}, 4 [pid 5181] <... socketpair resumed>[19, 20]) = 0 [pid 5184] <... set_robust_list resumed>) = 0 [pid 5183] <... bpf resumed>) = 17 [pid 5184] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5096] <... clone resumed>, child_tidptr=0x555586eaa650) = 5184 [pid 5183] perf_event_open( [pid 5184] <... prctl resumed>) = 0 [pid 5184] setpgid(0, 0 [pid 5183] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5184] <... setpgid resumed>) = 0 [pid 5183] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5181] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5184] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5183] <... socketpair resumed>[19, 20]) = 0 [pid 5180] <... openat resumed>) = 24 [pid 5182] perf_event_open( [pid 5184] <... openat resumed>) = 3 [pid 5184] write(3, "1000", 4) = 4 [pid 5184] close(3) = 0 [pid 5184] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5181] <... bpf resumed>) = 21 [pid 5182] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5183] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5180] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5184] <... openat resumed>) = 3 [pid 5182] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5181] perf_event_open( [pid 5184] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5180] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5184] <... socketpair resumed>[4, 5]) = 0 [pid 5182] <... bpf resumed>) = 23 [pid 5184] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5182] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5181] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5180] perf_event_open( [pid 5184] <... socketpair resumed>[6, 7]) = 0 [pid 5184] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5183] <... bpf resumed>) = 21 [pid 5182] <... openat resumed>) = 24 [pid 5181] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5180] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5184] <... bpf resumed>) = 8 [pid 5183] perf_event_open( [pid 5182] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5184] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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) = 9 [pid 5183] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5182] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5181] <... bpf resumed>) = 23 [pid 5180] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5184] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5183] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5182] perf_event_open( [pid 5181] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5184] <... bpf resumed>) = 10 [pid 5180] <... bpf resumed>) = 26 [pid 5184] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5180] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5184] <... bpf resumed>) = 11 [pid 5183] <... bpf resumed>) = 23 [pid 5182] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5181] <... openat resumed>) = 24 [pid 5184] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5183] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5182] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5181] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5184] <... bpf resumed>) = 12 [pid 5183] <... openat resumed>) = 24 [pid 5180] <... bpf resumed>) = 27 [pid 5184] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5181] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5180] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5183] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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) = -1 EINVAL (Invalid argument) [pid 5182] <... bpf resumed>) = 26 [pid 5183] perf_event_open( [pid 5184] <... bpf resumed>) = 13 [pid 5182] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5181] perf_event_open( [pid 5180] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5183] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5184] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5183] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5181] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5180] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5182] <... bpf resumed>) = 27 [pid 5182] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5180] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5182] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5182] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5184] <... bpf resumed>) = 14 [pid 5182] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5181] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5180] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1251 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5183] <... bpf resumed>) = 26 [pid 5182] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1564 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5183] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5184] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5183] <... bpf resumed>) = 27 [pid 5181] <... bpf resumed>) = 26 [pid 5184] <... socketpair resumed>[15, 16]) = 0 [pid 5184] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000) = -1 EEXIST (File exists) [pid 5184] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5182] <... bpf resumed>) = 28 [pid 5184] <... bpf resumed> => 71}, 8) = 0 [pid 5181] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5184] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=71}, 4) = 17 [pid 5183] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5182] close(28 [pid 5180] <... bpf resumed>) = 28 [pid 5184] perf_event_open( [pid 5183] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5182] <... close resumed>) = 0 [pid 5181] <... bpf resumed>) = 27 [pid 5184] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5182] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5184] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5183] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5181] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5184] <... socketpair resumed>[19, 20]) = 0 [pid 5183] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5182] <... socketpair resumed>[28, 29]) = 0 [pid 5181] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5180] close(28 [pid 5184] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5183] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1452 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5181] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5182] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5181] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5180] <... close resumed>) = 0 [pid 5180] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5184] <... bpf resumed>) = 21 [pid 5183] <... bpf resumed>) = 28 [pid 5181] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 992 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 tot"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5180] <... socketpair resumed>[28, 29]) = 0 [pid 5182] <... bpf resumed>) = 30 [pid 5184] perf_event_open( [pid 5183] close(28) = 0 [pid 5183] socketpair(AF_UNIX, SOCK_STREAM, 0, [28, 29]) = 0 [pid 5182] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5183] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5182] <... bpf resumed>) = 0 [pid 5183] <... bpf resumed>) = 30 [pid 5183] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5184] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5182] exit_group(0 [pid 5181] <... bpf resumed>) = 28 [pid 5180] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5182] <... exit_group resumed>) = ? [pid 5181] close(28 [pid 5184] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5183] <... bpf resumed>) = 0 [pid 5180] <... bpf resumed>) = 30 [pid 5184] <... bpf resumed>) = 23 [pid 5183] exit_group(0 [pid 5180] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5184] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5183] <... exit_group resumed>) = ? [pid 5180] <... bpf resumed>) = 0 [pid 5184] <... openat resumed>) = 24 [pid 5181] <... close resumed>) = 0 [pid 5181] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5180] exit_group(0 [pid 5184] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5181] <... socketpair resumed>[28, 29]) = 0 [pid 5181] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5184] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5183] +++ exited with 0 +++ [pid 5182] +++ exited with 0 +++ [pid 5180] <... exit_group resumed>) = ? [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5183, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5184] perf_event_open( [pid 5181] <... bpf resumed>) = 30 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5182, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5184] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5181] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5184] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5181] <... bpf resumed>) = 0 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5184] <... bpf resumed>) = 26 [pid 5181] exit_group(0./strace-static-x86_64: Process 5186 attached ./strace-static-x86_64: Process 5185 attached ) = ? [pid 5186] set_robust_list(0x555586eaa660, 24 [pid 5185] set_robust_list(0x555586eaa660, 24 [pid 5184] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5180] +++ exited with 0 +++ [pid 5093] <... clone resumed>, child_tidptr=0x555586eaa650) = 5186 [pid 5089] <... clone resumed>, child_tidptr=0x555586eaa650) = 5185 [pid 5186] <... set_robust_list resumed>) = 0 [pid 5185] <... set_robust_list resumed>) = 0 [pid 5186] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5185] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5184] <... bpf resumed>) = 27 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5180, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5090] restart_syscall(<... resuming interrupted clone ...> [pid 5186] <... prctl resumed>) = 0 [pid 5185] <... prctl resumed>) = 0 [pid 5184] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5181] +++ exited with 0 +++ [pid 5090] <... restart_syscall resumed>) = 0 [pid 5186] setpgid(0, 0 [pid 5185] setpgid(0, 0 [pid 5184] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5094] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5181, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5186] <... setpgid resumed>) = 0 [pid 5185] <... setpgid resumed>) = 0 [pid 5184] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5186] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5094] restart_syscall(<... resuming interrupted clone ...> [pid 5185] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5184] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5094] <... restart_syscall resumed>) = 0 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5186] <... openat resumed>) = 3 [pid 5185] <... openat resumed>) = 3 [pid 5184] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 947 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 tot"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72./strace-static-x86_64: Process 5187 attached [pid 5186] write(3, "1000", 4 [pid 5185] write(3, "1000", 4 [pid 5094] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5186] <... write resumed>) = 4 [pid 5185] <... write resumed>) = 4 [pid 5184] <... bpf resumed>) = 28 [pid 5186] close(3 [pid 5185] close(3 [pid 5186] <... close resumed>) = 0 [pid 5185] <... close resumed>) = 0 [pid 5184] close(28 [pid 5186] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5185] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5184] <... close resumed>) = 0 [pid 5186] <... openat resumed>) = 3 [pid 5185] <... openat resumed>) = 3 [pid 5186] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5185] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5184] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5186] <... socketpair resumed>[4, 5]) = 0 [pid 5185] <... socketpair resumed>[4, 5]) = 0 [pid 5184] <... socketpair resumed>[28, 29]) = 0 [pid 5090] <... clone resumed>, child_tidptr=0x555586eaa650) = 5187 [pid 5187] set_robust_list(0x555586eaa660, 24 [pid 5186] socketpair(AF_UNIX, SOCK_STREAM, 0, [6, 7]) = 0 [pid 5185] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5184] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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./strace-static-x86_64: Process 5188 attached [pid 5187] <... set_robust_list resumed>) = 0 [pid 5186] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5185] <... socketpair resumed>[6, 7]) = 0 [pid 5094] <... clone resumed>, child_tidptr=0x555586eaa650) = 5188 [pid 5188] set_robust_list(0x555586eaa660, 24 [pid 5187] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5186] <... bpf resumed>) = 8 [pid 5184] <... bpf resumed>) = 30 [pid 5188] <... set_robust_list resumed>) = 0 [pid 5187] <... prctl resumed>) = 0 [pid 5188] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5187] setpgid(0, 0 [pid 5186] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5185] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5184] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5188] <... prctl resumed>) = 0 [pid 5187] <... setpgid resumed>) = 0 [pid 5186] <... bpf resumed>) = 9 [pid 5185] <... bpf resumed>) = 8 [pid 5188] setpgid(0, 0 [pid 5187] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5185] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5184] <... bpf resumed>) = 0 [pid 5186] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5188] <... setpgid resumed>) = 0 [pid 5187] <... openat resumed>) = 3 [pid 5185] <... bpf resumed>) = 9 [pid 5184] exit_group(0 [pid 5188] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5187] write(3, "1000", 4 [pid 5185] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5188] <... openat resumed>) = 3 [pid 5187] <... write resumed>) = 4 [pid 5186] <... bpf resumed>) = 10 [pid 5185] <... bpf resumed>) = 10 [pid 5184] <... exit_group resumed>) = ? [pid 5188] write(3, "1000", 4 [pid 5187] close(3 [pid 5186] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5188] <... write resumed>) = 4 [pid 5187] <... close resumed>) = 0 [pid 5185] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5188] close(3 [pid 5187] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5186] <... bpf resumed>) = 11 [pid 5188] <... close resumed>) = 0 [pid 5187] <... openat resumed>) = 3 [pid 5186] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5185] <... bpf resumed>) = 11 [pid 5188] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5187] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5186] <... bpf resumed>) = 12 [pid 5185] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5188] <... openat resumed>) = 3 [pid 5187] <... socketpair resumed>[4, 5]) = 0 [pid 5186] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5188] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5187] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5185] <... bpf resumed>) = 12 [pid 5185] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5188] <... socketpair resumed>[4, 5]) = 0 [pid 5186] <... bpf resumed>) = 13 [pid 5187] <... socketpair resumed>[6, 7]) = 0 [pid 5185] <... bpf resumed>) = 13 [pid 5185] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5188] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5187] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5186] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5188] <... socketpair resumed>[6, 7]) = 0 [pid 5187] <... bpf resumed>) = 8 [pid 5186] <... bpf resumed>) = 14 [pid 5185] <... bpf resumed>) = 14 [pid 5185] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5188] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5187] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5186] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5185] <... socketpair resumed>[15, 16]) = 0 [pid 5188] <... bpf resumed>) = 8 [pid 5185] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5188] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5187] <... bpf resumed>) = 9 [pid 5186] <... socketpair resumed>[15, 16]) = 0 [pid 5185] <... openat resumed>) = -1 EEXIST (File exists) [pid 5188] <... bpf resumed>) = 9 [pid 5187] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5185] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5188] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5187] <... bpf resumed>) = 10 [pid 5186] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5185] <... bpf resumed> => 71}, 8) = 0 [pid 5188] <... bpf resumed>) = 10 [pid 5186] <... openat resumed>) = -1 EEXIST (File exists) [pid 5185] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=71}, 4 [pid 5184] +++ exited with 0 +++ [pid 5185] <... bpf resumed>) = -1 ENOENT (No such file or directory) [pid 5186] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5185] perf_event_open( [pid 5096] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5184, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5188] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5187] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5186] <... bpf resumed> => 91}, 8) = 0 [pid 5096] restart_syscall(<... resuming interrupted clone ...> [pid 5188] <... bpf resumed>) = 11 [pid 5187] <... bpf resumed>) = 11 [pid 5186] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=91}, 4 [pid 5185] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 17 [pid 5096] <... restart_syscall resumed>) = 0 [pid 5188] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5187] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5186] <... bpf resumed>) = 17 [pid 5185] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5188] <... bpf resumed>) = 12 [pid 5187] <... bpf resumed>) = 12 [pid 5186] perf_event_open( [pid 5185] <... socketpair resumed>[18, 19]) = 0 [pid 5188] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5187] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5186] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5096] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5185] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5188] <... bpf resumed>) = 13 [pid 5187] <... bpf resumed>) = 13 [pid 5186] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [19, 20]) = 0 [pid 5187] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5186] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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./strace-static-x86_64: Process 5189 attached [pid 5188] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5185] <... bpf resumed>) = 20 [pid 5096] <... clone resumed>, child_tidptr=0x555586eaa650) = 5189 [pid 5189] set_robust_list(0x555586eaa660, 24 [pid 5187] <... bpf resumed>) = 14 [pid 5186] <... bpf resumed>) = 21 [pid 5187] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [15, 16]) = 0 [pid 5187] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000) = -1 EEXIST (File exists) [pid 5189] <... set_robust_list resumed>) = 0 [pid 5188] <... bpf resumed>) = 14 [pid 5186] perf_event_open( [pid 5185] perf_event_open( [pid 5189] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5187] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5186] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5189] <... prctl resumed>) = 0 [pid 5187] <... bpf resumed> => 91}, 8) = 0 [pid 5185] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 21 [pid 5189] setpgid(0, 0 [pid 5188] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5187] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=91}, 4 [pid 5186] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5185] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5189] <... setpgid resumed>) = 0 [pid 5188] <... socketpair resumed>[15, 16]) = 0 [pid 5187] <... bpf resumed>) = 17 [pid 5186] <... bpf resumed>) = 23 [pid 5185] <... bpf resumed>) = 22 [pid 5189] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5188] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5187] perf_event_open( [pid 5186] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5189] <... openat resumed>) = 3 [pid 5188] <... openat resumed>) = -1 EEXIST (File exists) [pid 5187] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5185] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5189] write(3, "1000", 4 [pid 5188] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5187] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5186] <... openat resumed>) = 24 [pid 5189] <... write resumed>) = 4 [pid 5188] <... bpf resumed> => 91}, 8) = 0 [pid 5185] <... openat resumed>) = 23 [pid 5189] close(3 [pid 5188] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=91}, 4 [pid 5187] <... socketpair resumed>[19, 20]) = 0 [pid 5186] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5189] <... close resumed>) = 0 [pid 5188] <... bpf resumed>) = 17 [pid 5187] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5186] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5185] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5189] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5188] perf_event_open( [pid 5186] perf_event_open( [pid 5189] <... openat resumed>) = 3 [pid 5187] <... bpf resumed>) = 21 [pid 5189] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5188] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5187] perf_event_open( [pid 5186] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5185] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5187] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5186] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5189] <... socketpair resumed>[4, 5]) = 0 [pid 5188] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5187] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5185] perf_event_open( [pid 5189] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5188] <... socketpair resumed>[19, 20]) = 0 [pid 5187] <... bpf resumed>) = 23 [pid 5186] <... bpf resumed>) = 26 [pid 5185] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 24 [pid 5188] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5189] <... socketpair resumed>[6, 7]) = 0 [pid 5187] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5186] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5185] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5189] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5188] <... bpf resumed>) = 21 [pid 5187] <... openat resumed>) = 24 [pid 5186] <... bpf resumed>) = 27 [pid 5185] <... bpf resumed>) = 25 [pid 5189] <... bpf resumed>) = 8 [pid 5187] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5189] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5188] perf_event_open( [pid 5187] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5186] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5185] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5189] <... bpf resumed>) = 9 [pid 5188] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5187] perf_event_open( [pid 5186] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5185] <... bpf resumed>) = 26 [pid 5189] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5188] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5187] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5186] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5188] <... bpf resumed>) = 23 [pid 5187] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5186] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5185] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5189] <... bpf resumed>) = 10 [pid 5188] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5186] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1440 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5185] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5188] <... openat resumed>) = 24 [pid 5187] <... bpf resumed>) = 26 [pid 5188] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5185] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5189] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5188] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5185] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5189] <... bpf resumed>) = 11 [pid 5188] perf_event_open( [pid 5185] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 935 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 tot"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5189] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5188] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5187] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5186] <... bpf resumed>) = 28 [pid 5189] <... bpf resumed>) = 12 [pid 5188] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5186] close(28 [pid 5189] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5188] <... bpf resumed>) = 26 [pid 5187] <... bpf resumed>) = 27 [pid 5186] <... close resumed>) = 0 [pid 5185] <... bpf resumed>) = 27 [pid 5188] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5189] <... bpf resumed>) = 13 [pid 5187] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5186] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5185] close(27 [pid 5189] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5188] <... bpf resumed>) = 27 [pid 5187] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5186] <... socketpair resumed>[28, 29]) = 0 [pid 5185] <... close resumed>) = 0 [pid 5187] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5186] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5185] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5187] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5188] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5187] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1043 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5186] <... bpf resumed>) = 30 [pid 5185] <... socketpair resumed>[27, 28]) = 0 [pid 5189] <... bpf resumed>) = 14 [pid 5188] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5188] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5186] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5185] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5189] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5187] <... bpf resumed>) = 28 [pid 5188] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5186] <... bpf resumed>) = 0 [pid 5185] <... bpf resumed>) = 29 [pid 5189] <... socketpair resumed>[15, 16]) = 0 [pid 5188] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 936 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 tot"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5185] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=29, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5189] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5187] close(28 [pid 5186] exit_group(0 [pid 5189] <... openat resumed>) = -1 EEXIST (File exists) [pid 5188] <... bpf resumed>) = 28 [pid 5187] <... close resumed>) = 0 [pid 5186] <... exit_group resumed>) = ? [pid 5185] <... bpf resumed>) = 0 [pid 5189] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5188] close(28 [pid 5187] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5185] exit_group(0 [pid 5189] <... bpf resumed> => 91}, 8) = 0 [pid 5188] <... close resumed>) = 0 [pid 5185] <... exit_group resumed>) = ? [pid 5189] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=91}, 4 [pid 5188] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5187] <... socketpair resumed>[28, 29]) = 0 [pid 5188] <... socketpair resumed>[28, 29]) = 0 [pid 5188] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5189] <... bpf resumed>) = 17 [pid 5189] perf_event_open( [pid 5187] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5189] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5188] <... bpf resumed>) = 30 [pid 5187] <... bpf resumed>) = 30 [pid 5186] +++ exited with 0 +++ [pid 5189] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5188] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5187] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5189] <... socketpair resumed>[19, 20]) = 0 [pid 5188] <... bpf resumed>) = 0 [pid 5187] <... bpf resumed>) = 0 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5186, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5189] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5188] exit_group(0 [pid 5187] exit_group(0 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5189] <... bpf resumed>) = 21 [pid 5188] <... exit_group resumed>) = ? [pid 5187] <... exit_group resumed>) = ? [pid 5185] +++ exited with 0 +++ [pid 5189] perf_event_open({type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5185, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 5190 attached [pid 5093] <... clone resumed>, child_tidptr=0x555586eaa650) = 5190 [pid 5189] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5190] set_robust_list(0x555586eaa660, 24 [pid 5189] <... bpf resumed>) = 23 [pid 5189] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 24 [pid 5188] +++ exited with 0 +++ [pid 5190] <... set_robust_list resumed>) = 0 [pid 5189] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5189] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5094] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5188, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5189] perf_event_open( [pid 5094] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5094] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5190] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5191 attached ) = 0 [pid 5191] set_robust_list(0x555586eaa660, 24 [pid 5190] setpgid(0, 0 [pid 5191] <... set_robust_list resumed>) = 0 [pid 5191] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5190] <... setpgid resumed>) = 0 [pid 5089] <... clone resumed>, child_tidptr=0x555586eaa650) = 5191 ./strace-static-x86_64: Process 5192 attached [pid 5191] <... prctl resumed>) = 0 [pid 5190] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5192] set_robust_list(0x555586eaa660, 24 [pid 5191] setpgid(0, 0 [pid 5094] <... clone resumed>, child_tidptr=0x555586eaa650) = 5192 [pid 5192] <... set_robust_list resumed>) = 0 [pid 5191] <... setpgid resumed>) = 0 [pid 5192] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5191] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5190] <... openat resumed>) = 3 [pid 5192] <... prctl resumed>) = 0 [pid 5192] setpgid(0, 0) = 0 [pid 5191] <... openat resumed>) = 3 [pid 5192] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5190] write(3, "1000", 4) = 4 [pid 5192] <... openat resumed>) = 3 [pid 5191] write(3, "1000", 4 [pid 5190] close(3 [pid 5189] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5187] +++ exited with 0 +++ [pid 5192] write(3, "1000", 4 [pid 5191] <... write resumed>) = 4 [pid 5190] <... close resumed>) = 0 [pid 5189] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5192] <... write resumed>) = 4 [pid 5191] close(3 [pid 5190] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5187, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5192] close(3 [pid 5191] <... close resumed>) = 0 [pid 5190] <... openat resumed>) = 3 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5189] <... bpf resumed>) = 26 [pid 5192] <... close resumed>) = 0 [pid 5191] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5190] socketpair(AF_UNIX, SOCK_STREAM, 0, ./strace-static-x86_64: Process 5193 attached [pid 5192] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5191] <... openat resumed>) = 3 [pid 5190] <... socketpair resumed>[4, 5]) = 0 [pid 5189] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5193] set_robust_list(0x555586eaa660, 24 [pid 5191] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5190] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5189] <... bpf resumed>) = 27 [pid 5193] <... set_robust_list resumed>) = 0 [pid 5192] <... openat resumed>) = 3 [pid 5191] <... socketpair resumed>[4, 5]) = 0 [pid 5090] <... clone resumed>, child_tidptr=0x555586eaa650) = 5193 [pid 5192] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5193] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5192] <... socketpair resumed>[4, 5]) = 0 [pid 5190] <... socketpair resumed>[6, 7]) = 0 [pid 5191] socketpair(AF_UNIX, SOCK_STREAM, 0, [6, 7]) = 0 [pid 5192] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5190] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5192] <... socketpair resumed>[6, 7]) = 0 [pid 5190] <... bpf resumed>) = 8 [pid 5193] <... prctl resumed>) = 0 [pid 5191] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5189] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5193] setpgid(0, 0 [pid 5192] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5191] <... bpf resumed>) = 8 [pid 5190] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5189] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5193] <... setpgid resumed>) = 0 [pid 5192] <... bpf resumed>) = 8 [pid 5191] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5189] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5193] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5192] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5191] <... bpf resumed>) = 9 [pid 5190] <... bpf resumed>) = 9 [pid 5189] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5193] <... openat resumed>) = 3 [pid 5192] <... bpf resumed>) = 9 [pid 5191] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5189] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1241 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5193] write(3, "1000", 4 [pid 5192] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5191] <... bpf resumed>) = 10 [pid 5190] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5193] <... write resumed>) = 4 [pid 5193] close(3 [pid 5192] <... bpf resumed>) = 10 [pid 5189] <... bpf resumed>) = 28 [pid 5189] close(28) = 0 [pid 5189] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5193] <... close resumed>) = 0 [pid 5192] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5191] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5190] <... bpf resumed>) = 10 [pid 5189] <... socketpair resumed>[28, 29]) = 0 [pid 5193] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5191] <... bpf resumed>) = 11 [pid 5189] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5192] <... bpf resumed>) = 11 [pid 5191] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5189] <... bpf resumed>) = 30 [pid 5193] <... openat resumed>) = 3 [pid 5193] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5192] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5191] <... bpf resumed>) = 12 [pid 5190] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5193] <... socketpair resumed>[4, 5]) = 0 [pid 5192] <... bpf resumed>) = 12 [pid 5191] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5190] <... bpf resumed>) = 11 [pid 5189] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5193] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5192] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5191] <... bpf resumed>) = 13 [pid 5190] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5189] <... bpf resumed>) = 0 [pid 5193] <... socketpair resumed>[6, 7]) = 0 [pid 5192] <... bpf resumed>) = 13 [pid 5191] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5190] <... bpf resumed>) = 12 [pid 5189] exit_group(0 [pid 5193] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5192] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5191] <... bpf resumed>) = 14 [pid 5189] <... exit_group resumed>) = ? [pid 5193] <... bpf resumed>) = 8 [pid 5192] <... bpf resumed>) = 14 [pid 5190] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5193] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5191] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5193] <... bpf resumed>) = 9 [pid 5192] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5191] <... socketpair resumed>[15, 16]) = 0 [pid 5190] <... bpf resumed>) = 13 [pid 5193] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5192] <... socketpair resumed>[15, 16]) = 0 [pid 5191] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5190] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5193] <... bpf resumed>) = 10 [pid 5191] <... openat resumed>) = -1 EEXIST (File exists) [pid 5192] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000) = -1 EEXIST (File exists) [pid 5191] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 => 91}, 8) = 0 [pid 5192] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5191] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=91}, 4 [pid 5192] <... bpf resumed> => 91}, 8) = 0 [pid 5191] <... bpf resumed>) = 17 [pid 5192] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=91}, 4 [pid 5191] perf_event_open( [pid 5192] <... bpf resumed>) = 17 [pid 5191] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5192] perf_event_open( [pid 5191] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5193] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5192] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5191] <... socketpair resumed>[19, 20]) = 0 [pid 5190] <... bpf resumed>) = 14 [pid 5192] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5193] <... bpf resumed>) = 11 [pid 5192] <... socketpair resumed>[19, 20]) = 0 [pid 5191] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5190] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5193] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5192] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5191] <... bpf resumed>) = 21 [pid 5190] <... socketpair resumed>[15, 16]) = 0 [pid 5193] <... bpf resumed>) = 12 [pid 5192] <... bpf resumed>) = 21 [pid 5193] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5190] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000) = -1 EEXIST (File exists) [pid 5192] perf_event_open( [pid 5191] perf_event_open( [pid 5190] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5193] <... bpf resumed>) = 13 [pid 5190] <... bpf resumed> => 91}, 8) = 0 [pid 5193] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5190] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=91}, 4 [pid 5191] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5192] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5191] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5190] <... bpf resumed>) = 17 [pid 5192] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5191] <... bpf resumed>) = 23 [pid 5190] perf_event_open( [pid 5192] <... bpf resumed>) = 23 [pid 5191] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5190] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5192] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5191] <... openat resumed>) = 24 [pid 5190] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5193] <... bpf resumed>) = 14 [pid 5192] <... openat resumed>) = 24 [pid 5189] +++ exited with 0 +++ [pid 5193] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5190] <... socketpair resumed>[19, 20]) = 0 [pid 5193] <... socketpair resumed>[15, 16]) = 0 [pid 5193] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5192] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5096] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5189, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5193] <... openat resumed>) = -1 EEXIST (File exists) [pid 5192] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5191] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5190] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5096] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5193] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5192] perf_event_open( [pid 5191] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5190] <... bpf resumed>) = 21 ./strace-static-x86_64: Process 5194 attached [pid 5193] <... bpf resumed> => 91}, 8) = 0 [pid 5192] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5191] perf_event_open( [pid 5194] set_robust_list(0x555586eaa660, 24 [pid 5193] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=91}, 4 [pid 5191] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5194] <... set_robust_list resumed>) = 0 [pid 5190] perf_event_open( [pid 5193] <... bpf resumed>) = 17 [pid 5194] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5192] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5191] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5190] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5193] perf_event_open( [pid 5096] <... clone resumed>, child_tidptr=0x555586eaa650) = 5194 [pid 5194] <... prctl resumed>) = 0 [pid 5193] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5192] <... bpf resumed>) = 26 [pid 5194] setpgid(0, 0 [pid 5190] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5194] <... setpgid resumed>) = 0 [pid 5193] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5191] <... bpf resumed>) = 26 [pid 5190] <... bpf resumed>) = 23 [pid 5192] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5190] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5194] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5193] <... socketpair resumed>[19, 20]) = 0 [pid 5192] <... bpf resumed>) = 27 [pid 5191] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5190] <... openat resumed>) = 24 [pid 5194] <... openat resumed>) = 3 [pid 5193] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5194] write(3, "1000", 4 [pid 5190] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5192] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5191] <... bpf resumed>) = 27 [pid 5190] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5193] <... bpf resumed>) = 21 [pid 5192] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5192] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5190] perf_event_open( [pid 5194] <... write resumed>) = 4 [pid 5193] perf_event_open( [pid 5190] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5194] close(3 [pid 5192] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5194] <... close resumed>) = 0 [pid 5192] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 845 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 tot"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5194] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5193] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5192] <... bpf resumed>) = 28 [pid 5191] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5190] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5194] <... openat resumed>) = 3 [pid 5193] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5192] close(28 [pid 5191] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5190] <... bpf resumed>) = 26 [pid 5194] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5192] <... close resumed>) = 0 [pid 5191] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5193] <... bpf resumed>) = 23 [pid 5194] <... socketpair resumed>[4, 5]) = 0 [pid 5192] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5191] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5190] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5193] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5194] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5192] <... socketpair resumed>[28, 29]) = 0 [pid 5191] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 2356 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5190] <... bpf resumed>) = 27 [pid 5194] <... socketpair resumed>[6, 7]) = 0 [pid 5193] <... openat resumed>) = 24 [pid 5192] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5194] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5193] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5191] <... bpf resumed>) = 28 [pid 5190] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5192] <... bpf resumed>) = 30 [pid 5194] <... bpf resumed>) = 8 [pid 5193] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5192] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5191] close(28 [pid 5190] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5194] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5193] perf_event_open( [pid 5192] <... bpf resumed>) = 0 [pid 5191] <... close resumed>) = 0 [pid 5190] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5194] <... bpf resumed>) = 9 [pid 5193] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5192] exit_group(0 [pid 5191] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5190] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5194] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5193] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5192] <... exit_group resumed>) = ? [pid 5190] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1373 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5194] <... bpf resumed>) = 10 [pid 5190] <... bpf resumed>) = 28 [pid 5190] close(28 [pid 5194] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5193] <... bpf resumed>) = 26 [pid 5192] +++ exited with 0 +++ [pid 5191] <... socketpair resumed>[28, 29]) = 0 [pid 5194] <... bpf resumed>) = 11 [pid 5193] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5191] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5190] <... close resumed>) = 0 [pid 5194] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5191] <... bpf resumed>) = 30 [pid 5190] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5094] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5192, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5194] <... bpf resumed>) = 12 [pid 5193] <... bpf resumed>) = 27 [pid 5191] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5094] restart_syscall(<... resuming interrupted clone ...> [pid 5193] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5191] <... bpf resumed>) = 0 [pid 5190] <... socketpair resumed>[28, 29]) = 0 [pid 5094] <... restart_syscall resumed>) = 0 [pid 5194] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5193] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5191] exit_group(0 [pid 5190] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5194] <... bpf resumed>) = 13 [pid 5193] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5191] <... exit_group resumed>) = ? [pid 5190] <... bpf resumed>) = 30 [pid 5194] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5193] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5190] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32) = 0 [pid 5094] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5190] exit_group(0) = ? [pid 5194] <... bpf resumed>) = 14 [pid 5193] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1114 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5190] +++ exited with 0 +++ [pid 5194] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, ./strace-static-x86_64: Process 5195 attached [pid 5195] set_robust_list(0x555586eaa660, 24 [pid 5194] <... socketpair resumed>[15, 16]) = 0 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5190, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5194] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5193] <... bpf resumed>) = 28 [pid 5191] +++ exited with 0 +++ [pid 5094] <... clone resumed>, child_tidptr=0x555586eaa650) = 5195 [pid 5194] <... openat resumed>) = -1 EEXIST (File exists) [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5191, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5195] <... set_robust_list resumed>) = 0 [pid 5195] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5194] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5193] close(28 [pid 5195] <... prctl resumed>) = 0 [pid 5194] <... bpf resumed> => 91}, 8) = 0 [pid 5195] setpgid(0, 0 [pid 5193] <... close resumed>) = 0 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5195] <... setpgid resumed>) = 0 [pid 5194] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=91}, 4 [pid 5193] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5195] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5194] <... bpf resumed>) = 17 [pid 5194] perf_event_open( [pid 5195] write(3, "1000", 4) = 4 [pid 5193] <... socketpair resumed>[28, 29]) = 0 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5195] close(3 [pid 5194] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5195] <... close resumed>) = 0 [pid 5195] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000) = 3 ./strace-static-x86_64: Process 5197 attached ./strace-static-x86_64: Process 5196 attached [pid 5194] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5193] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5194] <... socketpair resumed>[19, 20]) = 0 [pid 5093] <... clone resumed>, child_tidptr=0x555586eaa650) = 5197 [pid 5197] set_robust_list(0x555586eaa660, 24 [pid 5196] set_robust_list(0x555586eaa660, 24 [pid 5195] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5193] <... bpf resumed>) = 30 [pid 5089] <... clone resumed>, child_tidptr=0x555586eaa650) = 5196 [pid 5197] <... set_robust_list resumed>) = 0 [pid 5196] <... set_robust_list resumed>) = 0 [pid 5195] <... socketpair resumed>[4, 5]) = 0 [pid 5194] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5193] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5197] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5196] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5195] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5193] <... bpf resumed>) = 0 [pid 5197] <... prctl resumed>) = 0 [pid 5196] <... prctl resumed>) = 0 [pid 5195] <... socketpair resumed>[6, 7]) = 0 [pid 5193] exit_group(0 [pid 5197] setpgid(0, 0 [pid 5196] setpgid(0, 0 [pid 5193] <... exit_group resumed>) = ? [pid 5197] <... setpgid resumed>) = 0 [pid 5196] <... setpgid resumed>) = 0 [pid 5195] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5194] <... bpf resumed>) = 21 [pid 5197] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5196] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5195] <... bpf resumed>) = 8 [pid 5194] perf_event_open( [pid 5197] <... openat resumed>) = 3 [pid 5196] <... openat resumed>) = 3 [pid 5195] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5194] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5197] write(3, "1000", 4 [pid 5196] write(3, "1000", 4 [pid 5195] <... bpf resumed>) = 9 [pid 5194] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5197] <... write resumed>) = 4 [pid 5196] <... write resumed>) = 4 [pid 5195] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5197] close(3 [pid 5196] close(3 [pid 5197] <... close resumed>) = 0 [pid 5197] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5194] <... bpf resumed>) = 23 [pid 5196] <... close resumed>) = 0 [pid 5197] <... openat resumed>) = 3 [pid 5195] <... bpf resumed>) = 10 [pid 5194] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5195] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5194] <... openat resumed>) = 24 [pid 5195] <... bpf resumed>) = 11 [pid 5195] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5196] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5195] <... bpf resumed>) = 12 [pid 5197] socketpair(AF_UNIX, SOCK_STREAM, 0, [4, 5]) = 0 [pid 5196] <... openat resumed>) = 3 [pid 5195] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5194] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5197] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5196] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5194] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5193] +++ exited with 0 +++ [pid 5197] <... socketpair resumed>[6, 7]) = 0 [pid 5196] <... socketpair resumed>[4, 5]) = 0 [pid 5195] <... bpf resumed>) = 13 [pid 5194] perf_event_open( [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5193, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5197] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5196] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5195] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5090] restart_syscall(<... resuming interrupted clone ...> [pid 5197] <... bpf resumed>) = 8 [pid 5196] <... socketpair resumed>[6, 7]) = 0 [pid 5194] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5090] <... restart_syscall resumed>) = 0 [pid 5197] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5196] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5195] <... bpf resumed>) = 14 [pid 5194] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5197] <... bpf resumed>) = 9 [pid 5196] <... bpf resumed>) = 8 [pid 5195] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5196] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5195] <... socketpair resumed>[15, 16]) = 0 [pid 5197] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5194] <... bpf resumed>) = 26 [pid 5196] <... bpf resumed>) = 9 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5195] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000) = -1 EEXIST (File exists) [pid 5195] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 => 91}, 8) = 0 [pid 5195] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=91}, 4) = 17 [pid 5195] perf_event_open({type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5195] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, ./strace-static-x86_64: Process 5198 attached [19, 20]) = 0 [pid 5198] set_robust_list(0x555586eaa660, 24) = 0 [pid 5195] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5198] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5197] <... bpf resumed>) = 10 [pid 5194] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5198] <... prctl resumed>) = 0 [pid 5196] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5195] <... bpf resumed>) = 21 [pid 5198] setpgid(0, 0 [pid 5090] <... clone resumed>, child_tidptr=0x555586eaa650) = 5198 [pid 5198] <... setpgid resumed>) = 0 [pid 5198] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5197] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5196] <... bpf resumed>) = 10 [pid 5195] perf_event_open( [pid 5194] <... bpf resumed>) = 27 [pid 5196] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5197] <... bpf resumed>) = 11 [pid 5196] <... bpf resumed>) = 11 [pid 5196] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5198] write(3, "1000", 4 [pid 5197] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5195] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5194] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5197] <... bpf resumed>) = 12 [pid 5197] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5195] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5198] <... write resumed>) = 4 [pid 5197] <... bpf resumed>) = 13 [pid 5196] <... bpf resumed>) = 12 [pid 5194] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5198] close(3 [pid 5196] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5198] <... close resumed>) = 0 [pid 5198] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5197] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5196] <... bpf resumed>) = 13 [pid 5195] <... bpf resumed>) = 23 [pid 5194] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5198] <... openat resumed>) = 3 [pid 5195] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5198] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5196] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5194] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5198] <... socketpair resumed>[4, 5]) = 0 [pid 5197] <... bpf resumed>) = 14 [pid 5195] <... openat resumed>) = 24 [pid 5198] socketpair(AF_UNIX, SOCK_STREAM, 0, [6, 7]) = 0 [pid 5197] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5194] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1353 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5198] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5197] <... socketpair resumed>[15, 16]) = 0 [pid 5196] <... bpf resumed>) = 14 [pid 5195] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5197] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5195] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5198] <... bpf resumed>) = 8 [pid 5197] <... openat resumed>) = -1 EEXIST (File exists) [pid 5196] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5195] perf_event_open( [pid 5197] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5196] <... socketpair resumed>[15, 16]) = 0 [pid 5195] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5198] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5197] <... bpf resumed> => 91}, 8) = 0 [pid 5194] <... bpf resumed>) = 28 [pid 5197] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=91}, 4 [pid 5195] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5198] <... bpf resumed>) = 9 [pid 5197] <... bpf resumed>) = 17 [pid 5196] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5194] close(28 [pid 5198] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5197] perf_event_open( [pid 5196] <... openat resumed>) = -1 EEXIST (File exists) [pid 5197] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5196] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5195] <... bpf resumed>) = 26 [pid 5194] <... close resumed>) = 0 [pid 5197] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5196] <... bpf resumed> => 91}, 8) = 0 [pid 5198] <... bpf resumed>) = 10 [pid 5197] <... socketpair resumed>[19, 20]) = 0 [pid 5196] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=91}, 4 [pid 5195] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5194] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5198] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5196] <... bpf resumed>) = 17 [pid 5194] <... socketpair resumed>[28, 29]) = 0 [pid 5197] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5198] <... bpf resumed>) = 11 [pid 5196] perf_event_open( [pid 5194] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5198] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5196] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5195] <... bpf resumed>) = 27 [pid 5194] <... bpf resumed>) = 30 [pid 5198] <... bpf resumed>) = 12 [pid 5197] <... bpf resumed>) = 21 [pid 5196] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5194] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5197] perf_event_open( [pid 5195] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5198] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5197] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5196] <... socketpair resumed>[19, 20]) = 0 [pid 5194] <... bpf resumed>) = 0 [pid 5196] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5195] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5194] exit_group(0 [pid 5198] <... bpf resumed>) = 13 [pid 5197] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5195] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5196] <... bpf resumed>) = 21 [pid 5195] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5194] <... exit_group resumed>) = ? [pid 5198] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5197] <... bpf resumed>) = 23 [pid 5195] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1073 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5197] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5198] <... bpf resumed>) = 14 [pid 5197] <... openat resumed>) = 24 [pid 5196] perf_event_open( [pid 5195] <... bpf resumed>) = 28 [pid 5195] close(28 [pid 5198] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5197] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5196] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5194] +++ exited with 0 +++ [pid 5198] <... socketpair resumed>[15, 16]) = 0 [pid 5197] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5195] <... close resumed>) = 0 [pid 5096] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5194, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5197] perf_event_open( [pid 5195] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5198] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5196] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5198] <... openat resumed>) = -1 EEXIST (File exists) [pid 5096] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5195] <... socketpair resumed>[28, 29]) = 0 ./strace-static-x86_64: Process 5199 attached [pid 5198] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5197] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5196] <... bpf resumed>) = 23 [pid 5199] set_robust_list(0x555586eaa660, 24 [pid 5198] <... bpf resumed> => 91}, 8) = 0 [pid 5197] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5196] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5195] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5096] <... clone resumed>, child_tidptr=0x555586eaa650) = 5199 [pid 5199] <... set_robust_list resumed>) = 0 [pid 5198] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=91}, 4 [pid 5196] <... openat resumed>) = 24 [pid 5199] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5199] setpgid(0, 0) = 0 [pid 5197] <... bpf resumed>) = 26 [pid 5195] <... bpf resumed>) = 30 [pid 5198] <... bpf resumed>) = 17 [pid 5199] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5198] perf_event_open( [pid 5197] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5196] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5195] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5199] <... openat resumed>) = 3 [pid 5198] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5196] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5199] write(3, "1000", 4 [pid 5198] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5196] perf_event_open( [pid 5195] <... bpf resumed>) = 0 [pid 5199] <... write resumed>) = 4 [pid 5199] close(3 [pid 5198] <... socketpair resumed>[19, 20]) = 0 [pid 5199] <... close resumed>) = 0 [pid 5198] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5196] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5195] exit_group(0 [pid 5199] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5197] <... bpf resumed>) = 27 [pid 5196] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5195] <... exit_group resumed>) = ? [pid 5199] <... openat resumed>) = 3 [pid 5198] <... bpf resumed>) = 21 [pid 5197] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777) = -1 ENOENT (No such file or directory) [pid 5197] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5198] perf_event_open( [pid 5199] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5197] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1008 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5196] <... bpf resumed>) = 26 [pid 5195] +++ exited with 0 +++ [pid 5199] <... socketpair resumed>[4, 5]) = 0 [pid 5198] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5196] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5094] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5195, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5199] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5197] <... bpf resumed>) = 28 [pid 5196] <... bpf resumed>) = 27 [pid 5198] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5199] <... socketpair resumed>[6, 7]) = 0 [pid 5197] close(28) = 0 [pid 5196] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5199] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5198] <... bpf resumed>) = 23 [pid 5197] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5094] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5198] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5196] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5199] <... bpf resumed>) = 8 [pid 5198] <... openat resumed>) = 24 [pid 5197] <... socketpair resumed>[28, 29]) = 0 [pid 5196] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5198] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5196] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 2102 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5199] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5197] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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./strace-static-x86_64: Process 5200 attached [pid 5199] <... bpf resumed>) = 9 [pid 5198] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5196] <... bpf resumed>) = 28 [pid 5200] set_robust_list(0x555586eaa660, 24 [pid 5199] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5198] perf_event_open( [pid 5197] <... bpf resumed>) = 30 [pid 5196] close(28 [pid 5094] <... clone resumed>, child_tidptr=0x555586eaa650) = 5200 [pid 5200] <... set_robust_list resumed>) = 0 [pid 5197] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5200] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5197] <... bpf resumed>) = 0 [pid 5199] <... bpf resumed>) = 10 [pid 5198] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5196] <... close resumed>) = 0 [pid 5196] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5198] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5197] exit_group(0 [pid 5196] <... socketpair resumed>[28, 29]) = 0 [pid 5200] setpgid(0, 0 [pid 5199] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5200] <... setpgid resumed>) = 0 [pid 5199] <... bpf resumed>) = 11 [pid 5197] <... exit_group resumed>) = ? [pid 5200] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5199] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5200] <... openat resumed>) = 3 [pid 5199] <... bpf resumed>) = 12 [pid 5200] write(3, "1000", 4 [pid 5199] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5200] <... write resumed>) = 4 [pid 5199] <... bpf resumed>) = 13 [pid 5200] close(3 [pid 5199] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5200] <... close resumed>) = 0 [pid 5199] <... bpf resumed>) = 14 [pid 5200] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000) = 3 [pid 5200] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5199] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5198] <... bpf resumed>) = 26 [pid 5197] +++ exited with 0 +++ [pid 5196] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5199] <... socketpair resumed>[15, 16]) = 0 [pid 5198] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5199] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5197, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5200] <... socketpair resumed>[4, 5]) = 0 [pid 5199] <... openat resumed>) = -1 EEXIST (File exists) [pid 5196] <... bpf resumed>) = 30 [pid 5200] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5196] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5200] <... socketpair resumed>[6, 7]) = 0 [pid 5199] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5196] <... bpf resumed>) = 0 [pid 5200] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5199] <... bpf resumed> => 91}, 8) = 0 [pid 5196] exit_group(0 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5200] <... bpf resumed>) = 8 [pid 5199] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=91}, 4 [pid 5196] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5201 attached [pid 5200] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5199] <... bpf resumed>) = 17 [pid 5198] <... bpf resumed>) = 27 [pid 5199] perf_event_open( [pid 5201] set_robust_list(0x555586eaa660, 24) = 0 [pid 5201] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5200] <... bpf resumed>) = 9 [pid 5199] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5198] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5201] <... prctl resumed>) = 0 [pid 5198] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5201] setpgid(0, 0 [pid 5200] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5199] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5198] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5201] <... setpgid resumed>) = 0 [pid 5199] <... socketpair resumed>[19, 20]) = 0 [pid 5198] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5196] +++ exited with 0 +++ [pid 5093] <... clone resumed>, child_tidptr=0x555586eaa650) = 5201 [pid 5201] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5200] <... bpf resumed>) = 10 [pid 5199] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5196, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5201] <... openat resumed>) = 3 [pid 5200] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5198] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 5794 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5201] write(3, "1000", 4 [pid 5200] <... bpf resumed>) = 11 [pid 5201] <... write resumed>) = 4 [pid 5200] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5201] close(3 [pid 5200] <... bpf resumed>) = 12 [pid 5199] <... bpf resumed>) = 21 [pid 5198] <... bpf resumed>) = 28 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5201] <... close resumed>) = 0 [pid 5200] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5198] close(28./strace-static-x86_64: Process 5202 attached [pid 5201] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5200] <... bpf resumed>) = 13 [pid 5199] perf_event_open( [pid 5198] <... close resumed>) = 0 [pid 5202] set_robust_list(0x555586eaa660, 24 [pid 5201] <... openat resumed>) = 3 [pid 5200] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5202] <... set_robust_list resumed>) = 0 [pid 5199] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5198] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5089] <... clone resumed>, child_tidptr=0x555586eaa650) = 5202 [pid 5202] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5201] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5202] <... prctl resumed>) = 0 [pid 5201] <... socketpair resumed>[4, 5]) = 0 [pid 5202] setpgid(0, 0 [pid 5201] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5200] <... bpf resumed>) = 14 [pid 5199] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5198] <... socketpair resumed>[28, 29]) = 0 [pid 5202] <... setpgid resumed>) = 0 [pid 5201] <... socketpair resumed>[6, 7]) = 0 [pid 5200] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5202] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5199] <... bpf resumed>) = 23 [pid 5198] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5201] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5200] <... socketpair resumed>[15, 16]) = 0 [pid 5199] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5202] <... openat resumed>) = 3 [pid 5201] <... bpf resumed>) = 8 [pid 5198] <... bpf resumed>) = 30 [pid 5202] write(3, "1000", 4 [pid 5201] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5202] <... write resumed>) = 4 [pid 5200] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5199] <... openat resumed>) = 24 [pid 5198] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5201] <... bpf resumed>) = 9 [pid 5202] close(3 [pid 5200] <... openat resumed>) = -1 EEXIST (File exists) [pid 5202] <... close resumed>) = 0 [pid 5199] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5198] <... bpf resumed>) = 0 [pid 5200] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5201] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5199] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5202] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5200] <... bpf resumed> => 91}, 8) = 0 [pid 5199] perf_event_open({type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5201] <... bpf resumed>) = 10 [pid 5199] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5202] <... openat resumed>) = 3 [pid 5201] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5200] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=91}, 4 [pid 5198] exit_group(0 [pid 5202] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5201] <... bpf resumed>) = 11 [pid 5200] <... bpf resumed>) = 17 [pid 5198] <... exit_group resumed>) = ? [pid 5199] <... bpf resumed>) = 26 [pid 5202] <... socketpair resumed>[4, 5]) = 0 [pid 5201] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5200] perf_event_open( [pid 5202] socketpair(AF_UNIX, SOCK_STREAM, 0, [6, 7]) = 0 [pid 5200] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5199] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5202] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5201] <... bpf resumed>) = 12 [pid 5200] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5199] <... bpf resumed>) = 27 [pid 5202] <... bpf resumed>) = 8 [pid 5201] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5202] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5201] <... bpf resumed>) = 13 [pid 5200] <... socketpair resumed>[19, 20]) = 0 [pid 5201] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5199] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5202] <... bpf resumed>) = 9 [pid 5200] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5198] +++ exited with 0 +++ [pid 5202] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5199] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5198, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5200] <... bpf resumed>) = 21 [pid 5199] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5202] <... bpf resumed>) = 10 [pid 5199] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1183 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5202] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5201] <... bpf resumed>) = 14 [pid 5200] perf_event_open( [pid 5202] <... bpf resumed>) = 11 [pid 5200] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5201] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5199] <... bpf resumed>) = 28 [pid 5202] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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) = 12 [pid 5201] <... socketpair resumed>[15, 16]) = 0 [pid 5200] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5199] close(28 [pid 5202] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5201] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5199] <... close resumed>) = 0 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5202] <... bpf resumed>) = 13 [pid 5201] <... openat resumed>) = -1 EEXIST (File exists) [pid 5200] <... bpf resumed>) = 23 [pid 5202] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5201] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5200] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5199] socketpair(AF_UNIX, SOCK_STREAM, 0, ./strace-static-x86_64: Process 5203 attached [28, 29]) = 0 [pid 5203] set_robust_list(0x555586eaa660, 24) = 0 [pid 5199] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5090] <... clone resumed>, child_tidptr=0x555586eaa650) = 5203 [pid 5203] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5201] <... bpf resumed> => 91}, 8) = 0 [pid 5200] <... openat resumed>) = 24 [pid 5199] <... bpf resumed>) = 30 [pid 5203] <... prctl resumed>) = 0 [pid 5202] <... bpf resumed>) = 14 [pid 5201] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=91}, 4 [pid 5200] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5203] setpgid(0, 0 [pid 5202] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5201] <... bpf resumed>) = 17 [pid 5199] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5203] <... setpgid resumed>) = 0 [pid 5202] <... socketpair resumed>[15, 16]) = 0 [pid 5201] perf_event_open( [pid 5200] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5203] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5201] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5200] perf_event_open( [pid 5199] <... bpf resumed>) = 0 [pid 5202] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5201] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5203] <... openat resumed>) = 3 [pid 5200] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5203] write(3, "1000", 4 [pid 5201] <... socketpair resumed>[19, 20]) = 0 [pid 5203] <... write resumed>) = 4 [pid 5202] <... openat resumed>) = -1 EEXIST (File exists) [pid 5203] close(3 [pid 5202] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5199] exit_group(0 [pid 5203] <... close resumed>) = 0 [pid 5202] <... bpf resumed> => 91}, 8) = 0 [pid 5201] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5200] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5199] <... exit_group resumed>) = ? [pid 5203] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5202] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=91}, 4 [pid 5203] <... openat resumed>) = 3 [pid 5202] <... bpf resumed>) = 17 [pid 5203] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5202] perf_event_open( [pid 5203] <... socketpair resumed>[4, 5]) = 0 [pid 5202] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5203] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5202] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5201] <... bpf resumed>) = 21 [pid 5203] <... socketpair resumed>[6, 7]) = 0 [pid 5202] <... socketpair resumed>[19, 20]) = 0 [pid 5200] <... bpf resumed>) = 26 [pid 5203] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5202] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5203] <... bpf resumed>) = 8 [pid 5202] <... bpf resumed>) = 21 [pid 5201] perf_event_open( [pid 5200] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5203] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5199] +++ exited with 0 +++ [pid 5201] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5096] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5199, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5203] <... bpf resumed>) = 9 [pid 5203] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5096] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5201] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5202] perf_event_open( [pid 5200] <... bpf resumed>) = 27 ./strace-static-x86_64: Process 5204 attached [pid 5203] <... bpf resumed>) = 10 [pid 5202] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5201] <... bpf resumed>) = 23 [pid 5200] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5204] set_robust_list(0x555586eaa660, 24 [pid 5203] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5202] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5201] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5200] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5096] <... clone resumed>, child_tidptr=0x555586eaa650) = 5204 [pid 5204] <... set_robust_list resumed>) = 0 [pid 5203] <... bpf resumed>) = 11 [pid 5202] <... bpf resumed>) = 23 [pid 5201] <... openat resumed>) = 24 [pid 5200] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5204] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5203] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5202] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5200] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5204] <... prctl resumed>) = 0 [pid 5200] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 4011 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5204] setpgid(0, 0 [pid 5203] <... bpf resumed>) = 12 [pid 5202] <... openat resumed>) = 24 [pid 5201] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5204] <... setpgid resumed>) = 0 [pid 5203] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5202] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5201] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5200] <... bpf resumed>) = 28 [pid 5204] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5203] <... bpf resumed>) = 13 [pid 5202] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5201] perf_event_open( [pid 5204] <... openat resumed>) = 3 [pid 5203] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5202] perf_event_open( [pid 5200] close(28 [pid 5204] write(3, "1000", 4 [pid 5201] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5200] <... close resumed>) = 0 [pid 5200] socketpair(AF_UNIX, SOCK_STREAM, 0, [28, 29]) = 0 [pid 5200] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5204] <... write resumed>) = 4 [pid 5203] <... bpf resumed>) = 14 [pid 5202] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5201] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5204] close(3 [pid 5203] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5202] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5200] <... bpf resumed>) = 30 [pid 5204] <... close resumed>) = 0 [pid 5203] <... socketpair resumed>[15, 16]) = 0 [pid 5202] <... bpf resumed>) = 26 [pid 5200] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32) = 0 [pid 5200] exit_group(0) = ? [pid 5204] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5203] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5202] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5201] <... bpf resumed>) = 26 [pid 5203] <... openat resumed>) = -1 EEXIST (File exists) [pid 5204] <... openat resumed>) = 3 [pid 5203] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5201] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5204] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5203] <... bpf resumed> => 91}, 8) = 0 [pid 5202] <... bpf resumed>) = 27 [pid 5204] <... socketpair resumed>[4, 5]) = 0 [pid 5203] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=91}, 4 [pid 5201] <... bpf resumed>) = 27 [pid 5203] <... bpf resumed>) = 17 [pid 5203] perf_event_open( [pid 5200] +++ exited with 0 +++ [pid 5094] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5200, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5204] socketpair(AF_UNIX, SOCK_STREAM, 0, [6, 7]) = 0 [pid 5203] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5202] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5201] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5094] restart_syscall(<... resuming interrupted clone ...> [pid 5204] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5203] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5094] <... restart_syscall resumed>) = 0 [pid 5202] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5201] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5202] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5203] <... socketpair resumed>[19, 20]) = 0 [pid 5202] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5201] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5204] <... bpf resumed>) = 8 [pid 5202] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 944 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 tot"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5201] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5204] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5203] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5094] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5204] <... bpf resumed>) = 9 [pid 5202] <... bpf resumed>) = 28 [pid 5201] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 2349 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5203] <... bpf resumed>) = 21 [pid 5202] close(28 [pid 5201] <... bpf resumed>) = 28 [pid 5202] <... close resumed>) = 0 [pid 5202] socketpair(AF_UNIX, SOCK_STREAM, 0, [28, 29]) = 0 [pid 5202] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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) = 30 [pid 5201] close(28 [pid 5202] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5201] <... close resumed>) = 0 [pid 5202] <... bpf resumed>) = 0 [pid 5201] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5204] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5202] exit_group(0 [pid 5201] <... socketpair resumed>[28, 29]) = 0 [pid 5203] perf_event_open( [pid 5202] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5205 attached [pid 5204] <... bpf resumed>) = 10 [pid 5203] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5201] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5094] <... clone resumed>, child_tidptr=0x555586eaa650) = 5205 [pid 5205] set_robust_list(0x555586eaa660, 24 [pid 5204] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16) = 11 [pid 5203] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5201] <... bpf resumed>) = 30 [pid 5205] <... set_robust_list resumed>) = 0 [pid 5204] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5203] <... bpf resumed>) = 23 [pid 5201] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5205] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5204] <... bpf resumed>) = 12 [pid 5203] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5201] <... bpf resumed>) = 0 [pid 5205] <... prctl resumed>) = 0 [pid 5204] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5203] <... openat resumed>) = 24 [pid 5202] +++ exited with 0 +++ [pid 5201] exit_group(0 [pid 5205] setpgid(0, 0 [pid 5204] <... bpf resumed>) = 13 [pid 5203] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5205] <... setpgid resumed>) = 0 [pid 5204] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5203] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5201] <... exit_group resumed>) = ? [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5202, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5205] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5089] restart_syscall(<... resuming interrupted clone ...> [pid 5203] perf_event_open({type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5203] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5204] <... bpf resumed>) = 14 [pid 5203] <... bpf resumed>) = 26 [pid 5089] <... restart_syscall resumed>) = 0 [pid 5203] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5205] <... openat resumed>) = 3 [pid 5204] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5201] +++ exited with 0 +++ [pid 5205] write(3, "1000", 4) = 4 [pid 5204] <... socketpair resumed>[15, 16]) = 0 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5201, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5205] close(3 [pid 5204] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5203] <... bpf resumed>) = 27 [pid 5093] restart_syscall(<... resuming interrupted clone ...> [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5205] <... close resumed>) = 0 [pid 5204] <... openat resumed>) = -1 EEXIST (File exists) [pid 5203] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5093] <... restart_syscall resumed>) = 0 [pid 5205] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000./strace-static-x86_64: Process 5206 attached ) = 3 [pid 5204] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5203] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5206] set_robust_list(0x555586eaa660, 24 [pid 5205] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5204] <... bpf resumed> => 91}, 8) = 0 [pid 5203] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5206] <... set_robust_list resumed>) = 0 [pid 5205] <... socketpair resumed>[4, 5]) = 0 [pid 5204] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=91}, 4 [pid 5203] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5089] <... clone resumed>, child_tidptr=0x555586eaa650) = 5206 [pid 5204] <... bpf resumed>) = 17 [pid 5205] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5204] perf_event_open( [pid 5203] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 957 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 tot"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5206] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5205] <... socketpair resumed>[6, 7]) = 0 ./strace-static-x86_64: Process 5207 attached [pid 5206] <... prctl resumed>) = 0 [pid 5204] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5093] <... clone resumed>, child_tidptr=0x555586eaa650) = 5207 [pid 5206] setpgid(0, 0) = 0 [pid 5207] set_robust_list(0x555586eaa660, 24 [pid 5206] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5205] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5204] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5203] <... bpf resumed>) = 28 [pid 5207] <... set_robust_list resumed>) = 0 [pid 5206] <... openat resumed>) = 3 [pid 5205] <... bpf resumed>) = 8 [pid 5206] write(3, "1000", 4) = 4 [pid 5206] close(3 [pid 5207] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5205] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5204] <... socketpair resumed>[19, 20]) = 0 [pid 5203] close(28 [pid 5207] <... prctl resumed>) = 0 [pid 5206] <... close resumed>) = 0 [pid 5204] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5203] <... close resumed>) = 0 [pid 5207] setpgid(0, 0 [pid 5206] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5205] <... bpf resumed>) = 9 [pid 5207] <... setpgid resumed>) = 0 [pid 5203] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5206] <... openat resumed>) = 3 [pid 5205] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5204] <... bpf resumed>) = 21 [pid 5203] <... socketpair resumed>[28, 29]) = 0 [pid 5207] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5206] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5204] perf_event_open( [pid 5203] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5207] <... openat resumed>) = 3 [pid 5206] <... socketpair resumed>[4, 5]) = 0 [pid 5205] <... bpf resumed>) = 10 [pid 5204] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5207] write(3, "1000", 4 [pid 5206] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5205] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5204] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5203] <... bpf resumed>) = 30 [pid 5207] <... write resumed>) = 4 [pid 5206] <... socketpair resumed>[6, 7]) = 0 [pid 5205] <... bpf resumed>) = 11 [pid 5204] <... bpf resumed>) = 23 [pid 5203] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5205] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5204] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5203] <... bpf resumed>) = 0 [pid 5205] <... bpf resumed>) = 12 [pid 5207] close(3 [pid 5206] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5205] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5204] <... openat resumed>) = 24 [pid 5203] exit_group(0 [pid 5207] <... close resumed>) = 0 [pid 5206] <... bpf resumed>) = 8 [pid 5205] <... bpf resumed>) = 13 [pid 5207] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5206] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5204] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5203] <... exit_group resumed>) = ? [pid 5205] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5207] <... openat resumed>) = 3 [pid 5206] <... bpf resumed>) = 9 [pid 5204] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5204] perf_event_open( [pid 5206] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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) = 10 [pid 5206] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5207] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5205] <... bpf resumed>) = 14 [pid 5204] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5203] +++ exited with 0 +++ [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5203, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5205] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5206] <... bpf resumed>) = 11 [pid 5205] <... socketpair resumed>[15, 16]) = 0 [pid 5204] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5207] <... socketpair resumed>[4, 5]) = 0 [pid 5206] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5205] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5207] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5206] <... bpf resumed>) = 12 [pid 5205] <... openat resumed>) = -1 EEXIST (File exists) [pid 5207] <... socketpair resumed>[6, 7]) = 0 [pid 5206] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5205] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13./strace-static-x86_64: Process 5208 attached [pid 5207] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5206] <... bpf resumed>) = 13 [pid 5205] <... bpf resumed> => 91}, 8) = 0 [pid 5204] <... bpf resumed>) = 26 [pid 5207] <... bpf resumed>) = 8 [pid 5205] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=91}, 4 [pid 5206] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5207] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5205] <... bpf resumed>) = 17 [pid 5208] set_robust_list(0x555586eaa660, 24 [pid 5206] <... bpf resumed>) = 14 [pid 5205] perf_event_open( [pid 5204] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5090] <... clone resumed>, child_tidptr=0x555586eaa650) = 5208 [pid 5208] <... set_robust_list resumed>) = 0 [pid 5207] <... bpf resumed>) = 9 [pid 5206] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5205] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5207] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5206] <... socketpair resumed>[15, 16]) = 0 [pid 5205] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5208] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5204] <... bpf resumed>) = 27 [pid 5207] <... bpf resumed>) = 10 [pid 5205] <... socketpair resumed>[19, 20]) = 0 [pid 5208] <... prctl resumed>) = 0 [pid 5207] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5206] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5205] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5204] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5208] setpgid(0, 0 [pid 5207] <... bpf resumed>) = 11 [pid 5206] <... openat resumed>) = -1 EEXIST (File exists) [pid 5204] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5208] <... setpgid resumed>) = 0 [pid 5204] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5208] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5205] <... bpf resumed>) = 21 [pid 5204] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5208] <... openat resumed>) = 3 [pid 5207] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5206] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5205] perf_event_open( [pid 5204] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 2643 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5208] write(3, "1000", 4 [pid 5207] <... bpf resumed>) = 12 [pid 5206] <... bpf resumed> => 91}, 8) = 0 [pid 5207] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5206] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=91}, 4 [pid 5205] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5207] <... bpf resumed>) = 13 [pid 5206] <... bpf resumed>) = 17 [pid 5207] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5206] perf_event_open( [pid 5208] <... write resumed>) = 4 [pid 5205] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5204] <... bpf resumed>) = 28 [pid 5208] close(3 [pid 5207] <... bpf resumed>) = 14 [pid 5206] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5208] <... close resumed>) = 0 [pid 5205] <... bpf resumed>) = 23 [pid 5208] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5207] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5206] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5205] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5204] close(28 [pid 5208] <... openat resumed>) = 3 [pid 5207] <... socketpair resumed>[15, 16]) = 0 [pid 5206] <... socketpair resumed>[19, 20]) = 0 [pid 5205] <... openat resumed>) = 24 [pid 5204] <... close resumed>) = 0 [pid 5206] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5208] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5207] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5205] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5204] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5207] <... openat resumed>) = -1 EEXIST (File exists) [pid 5206] <... bpf resumed>) = 21 [pid 5205] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5204] <... socketpair resumed>[28, 29]) = 0 [pid 5208] <... socketpair resumed>[4, 5]) = 0 [pid 5207] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5205] perf_event_open( [pid 5208] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5207] <... bpf resumed> => 91}, 8) = 0 [pid 5206] perf_event_open( [pid 5204] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5208] <... socketpair resumed>[6, 7]) = 0 [pid 5207] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=91}, 4) = 17 [pid 5204] <... bpf resumed>) = 30 [pid 5206] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5205] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5205] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5208] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5207] perf_event_open( [pid 5206] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5204] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5208] <... bpf resumed>) = 8 [pid 5207] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5206] <... bpf resumed>) = 23 [pid 5208] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5206] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5208] <... bpf resumed>) = 9 [pid 5207] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5206] <... openat resumed>) = 24 [pid 5205] <... bpf resumed>) = 26 [pid 5204] <... bpf resumed>) = 0 [pid 5208] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5207] <... socketpair resumed>[19, 20]) = 0 [pid 5206] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5205] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5204] exit_group(0 [pid 5208] <... bpf resumed>) = 10 [pid 5207] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5206] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5205] <... bpf resumed>) = 27 [pid 5204] <... exit_group resumed>) = ? [pid 5208] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5206] perf_event_open( [pid 5207] <... bpf resumed>) = 21 [pid 5207] perf_event_open( [pid 5205] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5208] <... bpf resumed>) = 11 [pid 5207] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5206] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5205] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5207] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5205] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5208] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5206] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5208] <... bpf resumed>) = 12 [pid 5207] <... bpf resumed>) = 23 [pid 5205] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5208] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5207] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5206] <... bpf resumed>) = 26 [pid 5205] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1772 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5204] +++ exited with 0 +++ [pid 5096] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5204, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5208] <... bpf resumed>) = 13 [pid 5206] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5207] <... openat resumed>) = 24 [pid 5207] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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) = -1 EINVAL (Invalid argument) [pid 5207] perf_event_open( [pid 5208] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5206] <... bpf resumed>) = 27 [pid 5205] <... bpf resumed>) = 28 [pid 5096] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5207] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5207] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5208] <... bpf resumed>) = 14 ./strace-static-x86_64: Process 5209 attached [pid 5208] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5207] <... bpf resumed>) = 26 [pid 5206] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5205] close(28 [pid 5209] set_robust_list(0x555586eaa660, 24 [pid 5208] <... socketpair resumed>[15, 16]) = 0 [pid 5205] <... close resumed>) = 0 [pid 5207] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5209] <... set_robust_list resumed>) = 0 [pid 5208] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5206] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5205] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5096] <... clone resumed>, child_tidptr=0x555586eaa650) = 5209 [pid 5209] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5208] <... openat resumed>) = -1 EEXIST (File exists) [pid 5207] <... bpf resumed>) = 27 [pid 5206] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5205] <... socketpair resumed>[28, 29]) = 0 [pid 5209] <... prctl resumed>) = 0 [pid 5208] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5206] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5209] setpgid(0, 0 [pid 5208] <... bpf resumed> => 91}, 8) = 0 [pid 5207] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5209] <... setpgid resumed>) = 0 [pid 5208] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=91}, 4 [pid 5206] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 1573 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5205] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5209] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5208] <... bpf resumed>) = 17 [pid 5207] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5205] <... bpf resumed>) = 30 [pid 5207] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5205] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5207] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5206] <... bpf resumed>) = 28 [pid 5205] <... bpf resumed>) = 0 [pid 5209] <... openat resumed>) = 3 [pid 5208] perf_event_open( [pid 5207] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 943 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 tot"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5205] exit_group(0 [pid 5209] write(3, "1000", 4 [pid 5208] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5206] close(28 [pid 5209] <... write resumed>) = 4 [pid 5208] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5205] <... exit_group resumed>) = ? [pid 5207] <... bpf resumed>) = 28 [pid 5209] close(3 [pid 5208] <... socketpair resumed>[19, 20]) = 0 [pid 5206] <... close resumed>) = 0 [pid 5209] <... close resumed>) = 0 [pid 5208] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5207] close(28 [pid 5206] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5209] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5208] <... bpf resumed>) = 21 [pid 5207] <... close resumed>) = 0 [pid 5206] <... socketpair resumed>[28, 29]) = 0 [pid 5209] <... openat resumed>) = 3 [pid 5207] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5205] +++ exited with 0 +++ [pid 5207] <... socketpair resumed>[28, 29]) = 0 [pid 5207] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5209] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5208] perf_event_open( [pid 5207] <... bpf resumed>) = 30 [pid 5206] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5094] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5205, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5209] <... socketpair resumed>[4, 5]) = 0 [pid 5207] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5206] <... bpf resumed>) = 30 [pid 5209] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5207] <... bpf resumed>) = 0 [pid 5094] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5208] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5207] exit_group(0 [pid 5206] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32 [pid 5207] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5210 attached [pid 5209] <... socketpair resumed>[6, 7]) = 0 [pid 5208] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5206] <... bpf resumed>) = 0 [pid 5210] set_robust_list(0x555586eaa660, 24 [pid 5209] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5208] <... bpf resumed>) = 23 [pid 5206] exit_group(0 [pid 5210] <... set_robust_list resumed>) = 0 [pid 5210] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5209] <... bpf resumed>) = 8 [pid 5208] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5206] <... exit_group resumed>) = ? [pid 5210] <... prctl resumed>) = 0 [pid 5209] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5207] +++ exited with 0 +++ [pid 5094] <... clone resumed>, child_tidptr=0x555586eaa650) = 5210 [pid 5210] setpgid(0, 0) = 0 [pid 5210] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5208] <... openat resumed>) = 24 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5207, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5210] write(3, "1000", 4) = 4 [pid 5210] close(3) = 0 [pid 5208] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5210] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5208] <... bpf resumed>) = -1 EINVAL (Invalid argument) [pid 5209] <... bpf resumed>) = 9 [pid 5208] perf_event_open( [pid 5210] <... openat resumed>) = 3 [pid 5209] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5210] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5209] <... bpf resumed>) = 10 [pid 5209] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5210] <... socketpair resumed>[4, 5]) = 0 [pid 5209] <... bpf resumed>) = 11 [pid 5209] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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./strace-static-x86_64: Process 5211 attached [pid 5210] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5208] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=323, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 25 [pid 5206] +++ exited with 0 +++ [pid 5211] set_robust_list(0x555586eaa660, 24 [pid 5210] <... socketpair resumed>[6, 7]) = 0 [pid 5209] <... bpf resumed>) = 12 [pid 5208] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=3, insns=0x20001d00, license="GPL", log_level=5, log_size=594, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5093] <... clone resumed>, child_tidptr=0x555586eaa650) = 5211 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5206, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5211] <... set_robust_list resumed>) = 0 [pid 5210] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5209] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5211] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5210] <... bpf resumed>) = 8 [pid 5211] <... prctl resumed>) = 0 [pid 5210] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5209] <... bpf resumed>) = 13 [pid 5208] <... bpf resumed>) = 26 [pid 5211] setpgid(0, 0 [pid 5209] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5211] <... setpgid resumed>) = 0 [pid 5210] <... bpf resumed>) = 9 [pid 5208] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x20000800, license="GPL"}, 20 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5211] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5210] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5209] <... bpf resumed>) = 14 [pid 5208] <... bpf resumed>) = 27 ./strace-static-x86_64: Process 5212 attached [pid 5211] <... openat resumed>) = 3 [pid 5212] set_robust_list(0x555586eaa660, 24 [pid 5210] <... bpf resumed>) = 10 [pid 5212] <... set_robust_list resumed>) = 0 [pid 5211] write(3, "1000", 4 [pid 5210] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5209] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5208] mkdirat(AT_FDCWD, "./cgroup.cpu/syz0", 0777 [pid 5089] <... clone resumed>, child_tidptr=0x555586eaa650) = 5212 [pid 5212] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5211] <... write resumed>) = 4 [pid 5208] <... mkdirat resumed>) = -1 ENOENT (No such file or directory) [pid 5211] close(3) = 0 [pid 5212] <... prctl resumed>) = 0 [pid 5211] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5210] <... bpf resumed>) = 11 [pid 5209] <... socketpair resumed>[15, 16]) = 0 [pid 5208] openat(AT_FDCWD, "./cgroup.cpu/syz0", O_RDWR|O_PATH [pid 5212] setpgid(0, 0 [pid 5211] <... openat resumed>) = 3 [pid 5210] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5209] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5208] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5212] <... setpgid resumed>) = 0 [pid 5211] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5210] <... bpf resumed>) = 12 [pid 5208] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_MSG, insn_cnt=4, insns=0x20000040, license="GPL", log_level=2, log_size=64912, log_buf="verification time 2131 usec\nstack depth 0\nprocessed 4 insns (limit 1000000) max_states_per_insn 0 to"..., kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72 [pid 5212] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5211] <... socketpair resumed>[4, 5]) = 0 [pid 5210] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5209] <... openat resumed>) = -1 EEXIST (File exists) [pid 5212] <... openat resumed>) = 3 [pid 5211] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5212] write(3, "1000", 4 [pid 5211] <... socketpair resumed>[6, 7]) = 0 [pid 5210] <... bpf resumed>) = 13 [pid 5209] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5208] <... bpf resumed>) = 28 [pid 5212] <... write resumed>) = 4 [pid 5211] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5209] <... bpf resumed> => 91}, 8) = 0 [pid 5212] close(3 [pid 5211] <... bpf resumed>) = 8 [pid 5210] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5209] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=91}, 4 [pid 5208] close(28 [pid 5212] <... close resumed>) = 0 [pid 5211] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5212] openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|O_CLOEXEC, 000 [pid 5211] <... bpf resumed>) = 9 [pid 5209] <... bpf resumed>) = 17 [pid 5208] <... close resumed>) = 0 [pid 5211] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5212] <... openat resumed>) = 3 [pid 5211] <... bpf resumed>) = 10 [pid 5210] <... bpf resumed>) = 14 [pid 5209] perf_event_open( [pid 5208] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5212] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5211] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5210] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5209] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5212] <... socketpair resumed>[4, 5]) = 0 [pid 5211] <... bpf resumed>) = 11 [pid 5210] <... socketpair resumed>[15, 16]) = 0 [pid 5209] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5208] <... socketpair resumed>[28, 29]) = 0 [pid 5212] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5211] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5210] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5209] <... socketpair resumed>[19, 20]) = 0 [pid 5208] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=4, max_entries=18, map_flags=0, inner_map_fd=-1, 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 [pid 5212] <... socketpair resumed>[6, 7]) = 0 [pid 5211] <... bpf resumed>) = 12 [pid 5210] <... openat resumed>) = -1 EEXIST (File exists) [pid 5209] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5208] <... bpf resumed>) = 30 [pid 5212] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_SOCKMAP, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, 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 [pid 5211] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_PERCPU_HASH, key_size=4, value_size=2, max_entries=12, map_flags=0, inner_map_fd=-1, 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}, 115 [pid 5210] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5209] <... bpf resumed>) = 21 [pid 5208] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=30, key=0x20000000, value=0x20000080, flags=BPF_ANY}, 32) = 0 [pid 5212] <... bpf resumed>) = 8 [pid 5211] <... bpf resumed>) = 13 [pid 5210] <... bpf resumed> => 91}, 8) = 0 [pid 5209] perf_event_open( [pid 5208] exit_group(0 [pid 5212] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5211] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000040, license="syzkaller", 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=-1, 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 [pid 5210] bpf(BPF_LINK_GET_FD_BY_ID, {link_id=91}, 4 [pid 5208] <... exit_group resumed>) = ? [pid 5212] <... bpf resumed>) = 9 [pid 5211] <... bpf resumed>) = 14 [pid 5210] <... bpf resumed>) = 17 [pid 5209] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=2106, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 22 [pid 5212] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=16, insns=0x20000280, license="syzkaller", 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=-1, 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 [pid 5211] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [pid 5210] perf_event_open( [pid 5209] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, 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 [pid 5212] <... bpf resumed>) = 10 [pid 5211] <... socketpair resumed>[15, 16]) = 0 [pid 5210] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=0, sample_type=0, read_format=0, inherit=1, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 18 [pid 5210] socketpair(AF_UNIX, SOCK_SEQPACKET|SOCK_NONBLOCK, 0, [pid 5209] <... bpf resumed>) = 23 [pid 5212] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=10}}, 16 [pid 5211] openat(AT_FDCWD, "cgroup.controllers", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000 [pid 5210] <... socketpair resumed>[19, 20]) = 0 [pid 5209] openat(AT_FDCWD, "cgroup.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5208] +++ exited with 0 +++ [pid 5212] <... bpf resumed>) = 11 [pid 5211] <... openat resumed>) = -1 EEXIST (File exists) [pid 5210] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=19, insns=0x20000340, 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 [pid 5212] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=4, max_entries=2, map_flags=0, inner_map_fd=1, 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 [pid 5211] bpf(BPF_LINK_GET_NEXT_ID, {start_id=0, next_id=13 [pid 5209] <... openat resumed>) = 24 [pid 5212] <... bpf resumed>) = 12 [pid 5211] <... bpf resumed> => 91}, 8) = 0 [pid 5209] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_CGROUP_SOCK_ADDR, insn_cnt=3, insns=NULL, license=NULL, 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=-1, 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 [pid 5212] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_T