./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1835643002 <...> Warning: Permanently added '10.128.0.254' (ED25519) to the list of known hosts. execve("./syz-executor1835643002", ["./syz-executor1835643002"], 0x7ffecbf1f3e0 /* 10 vars */) = 0 brk(NULL) = 0x555565a02000 brk(0x555565a02d00) = 0x555565a02d00 arch_prctl(ARCH_SET_FS, 0x555565a02380) = 0 set_tid_address(0x555565a02650) = 547 set_robust_list(0x555565a02660, 24) = 0 rseq(0x555565a02ca0, 0x20, 0, 0x53053053) = -1 ENOSYS (Function not implemented) prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1835643002", 4096) = 28 getrandom("\xfe\xac\x01\xb6\x6e\x5e\x8c\x15", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555565a02d00 brk(0x555565a23d00) = 0x555565a23d00 brk(0x555565a24000) = 0x555565a24000 mprotect(0x7f23daa28000, 16384, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555565a02650) = 549 ./strace-static-x86_64: Process 549 attached [pid 549] set_robust_list(0x555565a02660, 24) = 0 [pid 549] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 549] setpgid(0, 0) = 0 [pid 549] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 549] write(3, "1000", 4executing program ) = 4 [pid 549] close(3) = 0 [pid 549] write(1, "executing program\n", 18) = 18 [pid 549] memfd_create("syzkaller", 0) = 3 [pid 549] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f23d2575000 [pid 549] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144 [pid 549] munmap(0x7f23d2575000, 138412032) = 0 [pid 549] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 283.068324][ T24] audit: type=1400 audit(1745665730.400:66): avc: denied { execmem } for pid=547 comm="syz-executor183" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 283.088972][ T24] audit: type=1400 audit(1745665730.400:67): avc: denied { read write } for pid=547 comm="syz-executor183" name="loop0" dev="devtmpfs" ino=111 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [pid 549] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 549] close(3) = 0 [ 283.116081][ T24] audit: type=1400 audit(1745665730.400:68): avc: denied { open } for pid=547 comm="syz-executor183" path="/dev/loop0" dev="devtmpfs" ino=111 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 283.144269][ T24] audit: type=1400 audit(1745665730.400:69): avc: denied { ioctl } for pid=547 comm="syz-executor183" path="/dev/loop0" dev="devtmpfs" ino=111 ioctlcmd=0x4c01 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [pid 549] close(4) = 0 [pid 549] mkdir("./file1", 0777) = 0 [ 283.216359][ T24] audit: type=1400 audit(1745665730.540:70): avc: denied { mounton } for pid=549 comm="syz-executor183" path="/root/file1" dev="sda1" ino=1927 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 283.250042][ T549] EXT4-fs (loop0): mounted filesystem without journal. Opts: grpquota,abort,errors=remount-ro, [pid 549] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_POSIXACL|MS_RELATIME, "grpquota,abort,errors=remount-ro,") = 0 [pid 549] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 549] chdir("./file1") = 0 [pid 549] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 549] ioctl(4, LOOP_CLR_FD) = 0 [pid 549] close(4) = 0 [pid 549] openat(AT_FDCWD, "./file0", O_RDONLY) = 4 [pid 549] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_UNSPEC, insn_cnt=12, insns=0x200000000440, 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 EFAULT (Bad address) [pid 549] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=6, max_entries=5, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 5 [pid 549] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_UNSPEC, insn_cnt=12, insns=0x200000000440, 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}, 148) = -1 EFAULT (Bad address) [pid 549] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200000000440, 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}, 148) = -1 EFAULT (Bad address) [pid 549] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_UNSPEC, insn_cnt=4, insns=0x200000000480, license=NULL, log_level=4, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 EFAULT (Bad address) [ 283.260827][ T24] audit: type=1400 audit(1745665730.590:71): avc: denied { mount } for pid=549 comm="syz-executor183" name="/" dev="loop0" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 [ 283.260858][ T549] ext4 filesystem being mounted at /root/file1 supports timestamps until 2038-01-19 (0x7fffffff) [ 283.298301][ T24] audit: type=1400 audit(1745665730.630:72): avc: denied { prog_load } for pid=549 comm="syz-executor183" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bpf permissive=1 [ 283.319259][ T24] audit: type=1400 audit(1745665730.630:73): avc: denied { map_create } for pid=549 comm="syz-executor183" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bpf permissive=1 [ 283.340827][ T24] audit: type=1400 audit(1745665730.630:74): avc: denied { perfmon } for pid=549 comm="syz-executor183" capability=38 scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=capability2 permissive=1 [ 283.363937][ T24] audit: type=1400 audit(1745665730.630:75): avc: denied { map_read map_write } for pid=549 comm="syz-executor183" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bpf permissive=1 [pid 549] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=12, insns=0x200000000440, 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) = 6 [ 283.428660][ T549] EXT4-fs error (device loop0): ext4_readdir:263: inode #12: block 32: comm syz-executor183: path /root/file1/file0: bad entry in directory: rec_len is smaller than minimal - offset=0, inode=3, rec_len=0, size=2048 fake=0 [ 283.452649][ T549] EXT4-fs (loop0): Remounting filesystem read-only [ 400.577631][ T24] kauditd_printk_skb: 2 callbacks suppressed [ 400.577642][ T24] audit: type=1400 audit(1745665847.910:78): avc: denied { remove_name } for pid=77 comm="syslogd" name="messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 400.756898][ T24] audit: type=1400 audit(1745665847.910:79): avc: denied { rename } for pid=77 comm="syslogd" name="messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1