./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4228389798 <...> Warning: Permanently added '10.128.0.208' (ED25519) to the list of known hosts. execve("./syz-executor4228389798", ["./syz-executor4228389798"], 0x7fffbd57d120 /* 10 vars */) = 0 brk(NULL) = 0x55557fdd3000 brk(0x55557fdd3d00) = 0x55557fdd3d00 arch_prctl(ARCH_SET_FS, 0x55557fdd3380) = 0 set_tid_address(0x55557fdd3650) = 296 set_robust_list(0x55557fdd3660, 24) = 0 rseq(0x55557fdd3ca0, 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-executor4228389798", 4096) = 28 getrandom("\x99\x2a\x66\x3c\x69\x19\x68\xb2", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557fdd3d00 brk(0x55557fdf4d00) = 0x55557fdf4d00 brk(0x55557fdf5000) = 0x55557fdf5000 mprotect(0x7fb1fcc5b000, 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 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557fdd3650) = 297 ./strace-static-x86_64: Process 297 attached [pid 297] set_robust_list(0x55557fdd3660, 24) = 0 [pid 297] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 297] getppid() = 0 [pid 297] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 297] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 297] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 297] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 297] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 297] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 297] unshare(CLONE_NEWNS) = 0 [pid 297] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 297] unshare(CLONE_NEWIPC) = -1 EINVAL (Invalid argument) [pid 297] unshare(CLONE_NEWCGROUP) = 0 [pid 297] unshare(CLONE_NEWUTS) = 0 [pid 297] unshare(CLONE_SYSVSEM) = 0 [pid 297] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 297] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 297] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 297] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 297] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 297] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 297] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 297] getpid() = 1 [pid 297] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b 48 c7 45 d0 fb ff ff ff eb d7 e8 bd bd 40 ff e8 f8 a2 96 ff [ 27.124534][ T36] audit: type=1400 audit(1750672686.159:72): avc: denied { unmount } for pid=297 comm="syz-executor422" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 [ 27.129677][ T297] RSP: 0018:ffffc9000125fd88 EFLAGS: 00010293 [ 27.155801][ T36] audit: type=1400 audit(1750672686.179:73): avc: denied { mounton } for pid=297 comm="syz-executor422" path="/dev/gadgetfs" dev="devtmpfs" ino=434 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1 [ 27.175530][ T297] [ 27.226448][ T297] RAX: ffffffff8244dd92 RBX: ffff8881056bbf00 RCX: ffff888121a68000 [ 27.234459][ T297] RDX: 0000000000000000 RSI: 0000000000000011 RDI: 0000000000000012 [ 27.242435][ T297] RBP: ffffc9000125fdc8 R08: ffff88812228a707 R09: 1ffff110244514e0 [ 27.251492][ T297] R10: dffffc0000000000 R11: ffffed10244514e1 R12: ffffffffffffffff [ 27.259507][ T297] R13: 0000000000000012 R14: ffff888121d12f48 R15: ffff8881056bb601 [ 27.267498][ T297] FS: 000055557fdd3380(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 27.276453][ T297] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 27.283060][ T297] CR2: 0000200000001000 CR3: 00000001319ba000 CR4: 00000000003526b0 [ 27.291037][ T297] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 27.299081][ T297] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 27.307104][ T297] Call Trace: [ 27.310368][ T297] [ 27.313306][ T297] ? __cfi_ovl_listxattr+0x10/0x10 [ 27.318468][ T297] listxattr+0x13a/0x360 [ 27.322710][ T297] path_listxattr+0xda/0x1c0 [ 27.327386][ T297] ? getxattr+0x1c0/0x1c0 [ 27.331718][ T297] ? __kasan_check_write+0x18/0x20 [ 27.336862][ T297] __x64_sys_llistxattr+0x81/0x90 [ 27.341888][ T297] x64_sys_call+0x2cb0/0x2ee0 [ 27.346600][ T297] do_syscall_64+0x58/0xf0 [ 27.351043][ T297] ? clear_bhb_loop+0x50/0xa0 [ 27.355758][ T297] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 27.361653][ T297] RIP: 0033:0x7fb1fcbe7a39 [ 27.366123][ T297] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 27.385758][ T297] RSP: 002b:00007ffde9f34b58 EFLAGS: 00000206 ORIG_RAX: 00000000000000c3 [ 27.394206][ T297] RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007fb1fcbe7a39 [ 27.402172][ T297] RDX: 0000000000000088 RSI: 0000200000000200 RDI: 0000200000000000 [ 27.410173][ T297] RBP: 00007fb1fcc3111a R08: 0000000000000006 R09: 0000000000000006 [ 27.418177][ T297] R10: 0000200000000300 R11: 0000000000000206 R12: 00007fb1fcc3617c [pid 297] llistxattr("./file0", 0x200000000200, 136) = -1 EIO (Input/output error) [pid 297] exit_group(1) = ? [pid 297] +++ exited with 1 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=297, si_uid=0, si_status=1, si_utime=0, si_stime=36} --- exit_group(0) = ? +++ exited with 0 +++ [ 27.