./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor303097079 <...> "sda1" ino=1915 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:var_t tclass=lnk_file permissive=1 [ 76.040635][ T24] cfg80211: failed to load regulatory.db [ 220.795013][ T30] audit: type=1400 audit(1745590159.581:84): avc: denied { write } for pid=5829 comm="sftp-server" path="pipe:[2979]" dev="pipefs" ino=2979 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 [ 222.679694][ T30] audit: type=1400 audit(1745590161.471:85): avc: denied { append } for pid=5179 comm="syslogd" name="messages" dev="tmpfs" ino=3 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 222.701899][ T30] audit: type=1400 audit(1745590161.471:86): avc: denied { open } for pid=5179 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=3 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 222.724312][ T30] audit: type=1400 audit(1745590161.471:87): avc: denied { getattr } for pid=5179 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=3 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 Warning: Permanently added '10.128.0.190' (ED25519) to the list of known hosts. execve("./syz-executor303097079", ["./syz-executor303097079"], 0x7ffdbc8054a0 /* 10 vars */) = 0 brk(NULL) = 0x55555aadb000 brk(0x55555aadbd00) = 0x55555aadbd00 arch_prctl(ARCH_SET_FS, 0x55555aadb380) = 0 set_tid_address(0x55555aadb650) = 5850 set_robust_list(0x55555aadb660, 24) = 0 rseq(0x55555aadbca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor303097079", 4096) = 27 getrandom("\x66\xe0\x37\x6e\x2b\x23\x86\xfd", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555aadbd00 brk(0x55555aafcd00) = 0x55555aafcd00 brk(0x55555aafd000) = 0x55555aafd000 mprotect(0x7f596c87c000, 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 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5851 attached , child_tidptr=0x55555aadb650) = 5851 [pid 5851] set_robust_list(0x55555aadb660, 24) = 0 [pid 5850] openat(AT_FDCWD, "/sys/kernel/debug/x86/nmi_longest_ns", O_WRONLY|O_CLOEXEC) = 3 [pid 5850] write(3, "10000000000", 11) = 11 [pid 5850] close(3) = 0 [ 234.955494][ T30] audit: type=1400 audit(1745590173.741:88): avc: denied { execmem } for pid=5850 comm="syz-executor303" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [pid 5850] openat(AT_FDCWD, "/proc/sys/kernel/hung_task_check_interval_secs", O_WRONLY|O_CLOEXEC) = 3 [pid 5850] write(3, "20", 2) = 2 [pid 5850] close(3) = 0 [pid 5850] openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_kallsyms", O_WRONLY|O_CLOEXEC) = 3 [pid 5850] write(3, "1", 1) = 1 [pid 5850] close(3) = 0 [pid 5850] openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_harden", O_WRONLY|O_CLOEXEC) = 3 [pid 5850] write(3, "0", 1) = 1 [pid 5850] close(3) = 0 [pid 5850] openat(AT_FDCWD, "/proc/sys/kernel/kptr_restrict", O_WRONLY|O_CLOEXEC) = 3 [pid 5850] write(3, "0", 1) = 1 [pid 5850] close(3) = 0 [pid 5850] openat(AT_FDCWD, "/proc/sys/kernel/softlockup_all_cpu_backtrace", O_WRONLY|O_CLOEXEC) = 3 [pid 5850] write(3, "1", 1) = 1 [pid 5850] close(3) = 0 [pid 5850] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3 [pid 5850] write(3, "100", 3) = 3 [pid 5850] close(3) = 0 [pid 5850] openat(AT_FDCWD, "/proc/sys/vm/oom_dump_tasks", O_WRONLY|O_CLOEXEC) = 3 [pid 5850] write(3, "0", 1) = 1 [pid 5850] close(3) = 0 [pid 5850] openat(AT_FDCWD, "/proc/sys/debug/exception-trace", O_WRONLY|O_CLOEXEC) = 3 [pid 5850] write(3, "0", 1) = 1 [pid 5850] close(3) = 0 [pid 5850] openat(AT_FDCWD, "/proc/sys/kernel/printk", O_WRONLY|O_CLOEXEC) = 3 [pid 5850] write(3, "7 4 1 3", 7) = 7 [pid 5850] close(3) = 0 [pid 5850] openat(AT_FDCWD, "/proc/sys/kernel/keys/gc_delay", O_WRONLY|O_CLOEXEC) = 3 [pid 5850] write(3, "1", 1) = 1 [pid 5850] close(3) = 0 [pid 5850] openat(AT_FDCWD, "/proc/sys/vm/oom_kill_allocating_task", O_WRONLY|O_CLOEXEC) = 3 [pid 5850] write(3, "1", 1) = 1 [pid 5850] close(3) = 0 [pid 5850] openat(AT_FDCWD, "/proc/sys/kernel/ctrl-alt-del", O_WRONLY|O_CLOEXEC) = 3 [pid 5850] write(3, "0", 1) = 1 [pid 5850] close(3) = 0 [pid 5850] openat(AT_FDCWD, "/proc/sys/kernel/cad_pid", O_WRONLY|O_CLOEXEC) = 3 [pid 5850] write(3, "5851", 4) = 4 [pid 5850] close(3) = 0 [pid 5850] kill(5851, SIGKILL) = 0 [pid 5851] +++ killed by SIGKILL +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5851, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} --- unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5852 attached , child_tidptr=0x55555aadb650) = 5852 [pid 5852] set_robust_list(0x55555aadb660, 24) = 0 [pid 5852] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5852] getppid() = 0 [pid 5852] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5852] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5852] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5852] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5852] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5852] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5852] unshare(CLONE_NEWNS) = 0 [pid 5852] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5852] unshare(CLONE_NEWIPC) = 0 [pid 5852] unshare(CLONE_NEWCGROUP) = 0 [pid 5852] unshare(CLONE_NEWUTS) = 0 [ 235.573536][ T30] audit: type=1400 audit(1745590174.371:89): avc: denied { mounton } for pid=5852 comm="syz-executor303" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1 [pid 5852] unshare(CLONE_SYSVSEM) = 0 [pid 5852] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5852] write(3, "16777216", 8) = 8 [pid 5852] close(3) = 0 [pid 5852] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5852] write(3, "536870912", 9) = 9 [pid 5852] close(3) = 0 [pid 5852] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5852] write(3, "1024", 4) = 4 [pid 5852] close(3) = 0 [pid 5852] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5852] write(3, "8192", 4) = 4 [pid 5852] close(3) = 0 [pid 5852] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5852] write(3, "1024", 4) = 4 [pid 5852] close(3) = 0 [pid 5852] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5852] write(3, "1024", 4) = 4 [pid 5852] close(3) = 0 [pid 5852] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5852] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5852] close(3) = 0 [pid 5852] getpid() = 1 [pid 5852] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5864] set_robust_list(0x55555aadb660, 24) = 0 [pid 5864] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5864] setpgid(0, 0) = 0 [pid 5864] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5852] <... clone resumed>, child_tidptr=0x55555aadb650) = 3 [pid 5864] <... openat resumed>) = 3 [pid 5864] write(3, "1000", 4) = 4 [pid 5864] close(3) = 0 [pid 5864] read(200, 0x7ffd4ecf5420, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5864] write(1, "executing program\n", 18executing program ) = 18 [pid 5864] socket(AF_NETLINK, SOCK_RAW, NETLINK_NETFILTER) = 3 [pid 5864] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\x14\x00\x00\x00\x10\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0a\x20\x00\x00\x00\x00\x0a\x01\x03\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\xff\xfd\x09\x00\x01\x00\x73\x79\x7a\x30\x00\x00\x00\x00\x40\x00\x00\x00\x03\x0a\x01\x02\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x09\x00\x03\x00\x73\x79\x7a\x32\x00\x00\x00\x00\x14\x00\x04\x80\x08\x00\x02\x40\x32\x65\x8a\xeb\x08\x00\x01\x40"..., iov_len=204}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 204 [pid 5864] write(200, "\xaa\xaa\xaa\xaa\xaa\xaa\xff\xff\xff\xff\xff\xff\x08\x00\x45\x00\x00\x28\x00\x00\x00\x00\x00\x06\xba\xd1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x4e\x29\x44\x43\x42\x41\x44\x43\x42\x41\x50\x16\x00\x01\x54\x9c\x00\x00", 54) = 54 [pid 5864] close(3) = 0 [pid 5864] close(4) = -1 EBADF (Bad file descriptor) [pid 5864] close(5) = -1 EBADF (Bad file descriptor) [pid 5864] close(6) = -1 EBADF (Bad file descriptor) [pid 5864] close(7) = -1 EBADF (Bad file descriptor) [pid 5864] close(8) = -1 EBADF (Bad file descriptor) [pid 5864] close(9) = -1 EBADF (Bad file descriptor) [pid 5864] close(10) = -1 EBADF (Bad file descriptor) [pid 5864] close(11) = -1 EBADF (Bad file descriptor) [pid 5864] close(12) = -1 EBADF (Bad file descriptor) [pid 5864] close(13) = -1 EBADF (Bad file descriptor) [pid 5864] close(14) = -1 EBADF (Bad file descriptor) [pid 5864] close(15) = -1 EBADF (Bad file descriptor) [pid 5864] close(16) = -1 EBADF (Bad file descriptor) [pid 5864] close(17) = -1 EBADF (Bad file descriptor) [pid 5864] close(18) = -1 EBADF (Bad file descriptor) [pid 5864] close(19) = -1 EBADF (Bad file descriptor) [pid 5864] close(20) = -1 EBADF (Bad file descriptor) [pid 5864] close(21) = -1 EBADF (Bad file descriptor) [pid 5864] close(22) = -1 EBADF (Bad file descriptor) [pid 5864] close(23) = -1 EBADF (Bad file descriptor) [pid 5864] close(24) = -1 EBADF (Bad file descriptor) [pid 5864] close(25) = -1 EBADF (Bad file descriptor) [pid 5864] close(26) = -1 EBADF (Bad file descriptor) [pid 5864] close(27) = -1 EBADF (Bad file descriptor) [pid 5864] close(28) = -1 EBADF (Bad file descriptor) [pid 5864] close(29) = -1 EBADF (Bad file descriptor) [pid 5864] exit_group(0) = ? [pid 5864] +++ exited with 0 +++ [pid 5852] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5852] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555aadb650) = 4 ./strace-static-x86_64: Process 5865 attached executing program [pid 5865] set_robust_list(0x55555aadb660, 24) = 0 [pid 5865] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5865] setpgid(0, 0) = 0 [pid 5865] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5865] write(3, "1000", 4) = 4 [pid 5865] close(3) = 0 [pid 5865] read(200, 0x7ffd4ecf5420, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5865] write(1, "executing program\n", 18) = 18 [pid 5865] socket(AF_NETLINK, SOCK_RAW, NETLINK_NETFILTER) = 3 [ 256.348303][ C1] sched: DL replenish lagged too much [pid 5865] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\x14\x00\x00\x00\x10\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0a\x20\x00\x00\x00\x00\x0a\x01\x03\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\xff\xfd\x09\x00\x01\x00\x73\x79\x7a\x30\x00\x00\x00\x00\x40\x00\x00\x00\x03\x0a\x01\x02\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x09\x00\x03\x00\x73\x79\x7a\x32\x00\x00\x00\x00\x14\x00\x04\x80\x08\x00\x02\x40\x32\x65\x8a\xeb\x08\x00\x01\x40"..., iov_len=204}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 [pid 5852] kill(-4, SIGKILL) = 0 [pid 5852] kill(4, SIGKILL) = 0 [pid 5865] <... sendmsg resumed>) = ? [pid 5865] +++ killed by SIGKILL +++ [pid 5852] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=4, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5852] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5867 attached [pid 5867] set_robust_list(0x55555aadb660, 24) = 0 [pid 5867] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5867] setpgid(0, 0) = 0 [pid 5867] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5852] <... clone resumed>, child_tidptr=0x55555aadb650) = 5 [pid 5852] kill(-5, SIGKILL) = 0 [pid 5852] kill(5, SIGKILL) = 0 [pid 5867] <... openat resumed>) = ? [pid 5867] +++ killed by SIGKILL +++ [pid 5852] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5852] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5869 attached [pid 5869] set_robust_list(0x55555aadb660, 24) = 0 [pid 5869] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5869] setpgid(0, 0) = 0 [pid 5869] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5852] <... clone resumed>, child_tidptr=0x55555aadb650) = 6 [pid 5852] kill(-6, SIGKILL) = 0 [pid 5852] kill(6, SIGKILL) = 0 [pid 5869] <... openat resumed>) = ? [pid 5869] +++ killed by SIGKILL +++ [pid 5852] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=6, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5852] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555aadb650) = 7 ./strace-static-x86_64: Process 5873 attached [pid 5873] set_robust_list(0x55555aadb660, 24) = 0 [pid 5873] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5873] setpgid(0, 0) = 0 [pid 5873] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5852] kill(-7, SIGKILL) = 0 [pid 5852] kill(7, SIGKILL) = 0 [ 502.503946][ T31] INFO: task kworker/1:3:5861 blocked for more than 144 seconds. [ 502.538536][ T31] Not tainted 6.15.0-rc3-syzkaller-00094-g02ddfb981de8 #0 [ 502.572998][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 511.280738][ T31] task:kworker/1:3 state:D stack:25608 pid:5861 tgid:5861 ppid:2 task_flags:0x4208060 flags:0x00004000