./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3064791522 <...> Starting sshd: OK [ 6.707684][ T133] rcS (133) used greatest stack depth: 26576 bytes left syzkaller syzkaller login: [ 13.923337][ T261] cat (261) used greatest stack depth: 26464 bytes left [ 14.747837][ T22] kauditd_printk_skb: 60 callbacks suppressed [ 14.747845][ T22] audit: type=1400 audit(1654334144.129:71): avc: denied { transition } for pid=265 comm="sshd" path="/bin/sh" dev="sda1" ino=73 scontext=system_u:system_r:initrc_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 14.776253][ T22] audit: type=1400 audit(1654334144.139:72): avc: denied { write } for pid=265 comm="sh" path="pipe:[10095]" dev="pipefs" ino=10095 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:initrc_t tclass=fifo_file permissive=1 Warning: Permanently added '10.128.0.247' (ECDSA) to the list of known hosts. execve("./syz-executor3064791522", ["./syz-executor3064791522"], 0x7fff4ef94880 /* 10 vars */) = 0 brk(NULL) = 0x555556a85000 brk(0x555556a85c40) = 0x555556a85c40 arch_prctl(ARCH_SET_FS, 0x555556a85300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor3064791522", 4096) = 28 brk(0x555556aa6c40) = 0x555556aa6c40 brk(0x555556aa7000) = 0x555556aa7000 mprotect(0x7fe6248cc000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556a855d0) = 305 ./strace-static-x86_64: Process 305 attached [pid 305] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 305] setpgid(0, 0) = 0 [pid 305] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 305] write(3, "1000", 4) = 4 [pid 305] close(3) = 0 [pid 305] mkdir("./file0", 000) = 0 [pid 305] pipe2([3, 4], 0) = 0 [pid 305] write(4, "\x15\x15\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [ 21.735593][ T22] audit: type=1400 audit(1654334151.119:73): avc: denied { execmem } for pid=304 comm="syz-executor306" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 21.756751][ T22] audit: type=1400 audit(1654334151.139:74): avc: denied { mounton } for pid=305 comm="syz-executor306" path="/root/file0" dev="sda1" ino=1138 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [pid 305] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004" [pid 304] kill(-305, SIGKILL) = 0 [pid 304] kill(305, SIGKILL) = 0 [pid 304] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 304] fstat(3, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 [pid 304] getdents64(3, 0x555556a86620 /* 2 entries */, 32768) = 48 [pid 304] getdents64(3, 0x555556a86620 /* 0 entries */, 32768) = 0 [pid 304] close(3) = 0 [ 66.818577][ T67] cfg80211: failed to load regulatory.db