./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor814310287 <...> Warning: Permanently added '10.128.0.55' (ED25519) to the list of known hosts. execve("./syz-executor814310287", ["./syz-executor814310287"], 0x7ffd1ec0dec0 /* 10 vars */) = 0 brk(NULL) = 0x55555be21000 brk(0x55555be21e00) = 0x55555be21e00 arch_prctl(ARCH_SET_FS, 0x55555be21480) = 0 set_tid_address(0x55555be21750) = 5839 set_robust_list(0x55555be21760, 24) = 0 rseq(0x55555be21da0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor814310287", 4096) = 27 getrandom("\x81\xd2\xce\xf0\x91\x79\xcf\xfb", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555be21e00 brk(0x55555be42e00) = 0x55555be42e00 brk(0x55555be43000) = 0x55555be43000 mprotect(0x7f9e0f883000, 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 5840 attached , child_tidptr=0x55555be21750) = 5840 [pid 5839] openat(AT_FDCWD, "/sys/kernel/debug/x86/nmi_longest_ns", O_WRONLY|O_CLOEXEC [pid 5840] set_robust_list(0x55555be21760, 24) = 0 [pid 5839] <... openat resumed>) = 3 [pid 5839] write(3, "10000000000", 11) = 11 [ 105.270314][ T30] audit: type=1400 audit(1744964076.722:88): avc: denied { execmem } for pid=5839 comm="syz-executor814" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [pid 5839] close(3) = 0 [pid 5839] openat(AT_FDCWD, "/proc/sys/kernel/hung_task_check_interval_secs", O_WRONLY|O_CLOEXEC) = 3 [pid 5839] write(3, "20", 2) = 2 [pid 5839] close(3) = 0 [pid 5839] openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_kallsyms", O_WRONLY|O_CLOEXEC) = 3 [pid 5839] write(3, "1", 1) = 1 [pid 5839] close(3) = 0 [pid 5839] openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_harden", O_WRONLY|O_CLOEXEC) = 3 [pid 5839] write(3, "0", 1) = 1 [pid 5839] close(3) = 0 [pid 5839] openat(AT_FDCWD, "/proc/sys/kernel/kptr_restrict", O_WRONLY|O_CLOEXEC) = 3 [pid 5839] write(3, "0", 1) = 1 [pid 5839] close(3) = 0 [pid 5839] openat(AT_FDCWD, "/proc/sys/kernel/softlockup_all_cpu_backtrace", O_WRONLY|O_CLOEXEC) = 3 [pid 5839] write(3, "1", 1) = 1 [pid 5839] close(3) = 0 [pid 5839] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3 [pid 5839] write(3, "100", 3) = 3 [pid 5839] close(3) = 0 [pid 5839] openat(AT_FDCWD, "/proc/sys/vm/oom_dump_tasks", O_WRONLY|O_CLOEXEC) = 3 [pid 5839] write(3, "0", 1) = 1 [pid 5839] close(3) = 0 [pid 5839] openat(AT_FDCWD, "/proc/sys/debug/exception-trace", O_WRONLY|O_CLOEXEC) = 3 [pid 5839] write(3, "0", 1) = 1 [pid 5839] close(3) = 0 [pid 5839] openat(AT_FDCWD, "/proc/sys/kernel/printk", O_WRONLY|O_CLOEXEC) = 3 [pid 5839] write(3, "7 4 1 3", 7) = 7 [pid 5839] close(3) = 0 [pid 5839] openat(AT_FDCWD, "/proc/sys/kernel/keys/gc_delay", O_WRONLY|O_CLOEXEC) = 3 [pid 5839] write(3, "1", 1) = 1 [pid 5839] close(3) = 0 [pid 5839] openat(AT_FDCWD, "/proc/sys/vm/oom_kill_allocating_task", O_WRONLY|O_CLOEXEC) = 3 [pid 5839] write(3, "1", 1) = 1 [pid 5839] close(3) = 0 [pid 5839] openat(AT_FDCWD, "/proc/sys/kernel/ctrl-alt-del", O_WRONLY|O_CLOEXEC) = 3 [pid 5839] write(3, "0", 1) = 1 [pid 5839] close(3) = 0 [pid 5839] openat(AT_FDCWD, "/proc/sys/kernel/cad_pid", O_WRONLY|O_CLOEXEC) = 3 [pid 5839] write(3, "5840", 4) = 4 [pid 5839] close(3) = 0 [pid 5839] kill(5840, SIGKILL) = 0 [pid 5840] +++ killed by SIGKILL +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5840, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} --- chmod("/dev/raw-gadget", 0666) = 0 rt_sigaction(SIGRTMIN, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGSEGV, {sa_handler=0x7f9e0f7c3120, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f9e0f7cfd00}, NULL, 8) = 0 rt_sigaction(SIGBUS, {sa_handler=0x7f9e0f7c3120, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f9e0f7cfd00}, NULL, 8) = 0 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5841 attached , child_tidptr=0x55555be21750) = 5841 [pid 5841] set_robust_list(0x55555be21760, 24) = 0 [ 105.714151][ T30] audit: type=1400 audit(1744964077.172:89): avc: denied { setattr } for pid=5839 comm="syz-executor814" name="raw-gadget" dev="devtmpfs" ino=820 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [pid 5841] socket(AF_BLUETOOTH, SOCK_RAW, BTPROTO_HCI) = 3 [pid 5841] openat(AT_FDCWD, "/dev/vhci", O_RDWR) = 4 [pid 5841] dup2(4, 202) = 202 [pid 5841] close(4) = 0 [ 105.780461][ T30] audit: type=1400 audit(1744964077.232:90): avc: denied { create } for pid=5841 comm="syz-executor814" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bluetooth_socket permissive=1 [ 105.802020][ T30] audit: type=1400 audit(1744964077.262:91): avc: denied { read write } for pid=5841 comm="syz-executor814" name="vhci" dev="devtmpfs" ino=1268 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:vhost_device_t tclass=chr_file permissive=1 [pid 5841] write(202, "\xff\x00", 2) = 2 [pid 5841] read(202, "\xff\x00\x00\x00", 4) = 4 [pid 5841] rt_sigaction(SIGRT_1, {sa_handler=0x7f9e0f82da20, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f9e0f7cfd00}, NULL, 8) = 0 [pid 5841] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [ 105.826081][ T30] audit: type=1400 audit(1744964077.262:92): avc: denied { open } for pid=5841 comm="syz-executor814" path="/dev/vhci" dev="devtmpfs" ino=1268 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:vhost_device_t tclass=chr_file permissive=1 [pid 5841] mmap(NULL, 8392704, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f9e0efaf000 [pid 5841] mprotect(0x7f9e0efb0000, 8388608, PROT_READ|PROT_WRITE) = 0 [pid 5841] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5841] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f9e0f7af990, parent_tid=0x7f9e0f7af990, exit_signal=0, stack=0x7f9e0efaf000, stack_size=0x800240, tls=0x7f9e0f7af6c0}./strace-static-x86_64: Process 5843 attached => {parent_tid=[2]}, 88) = 2 [pid 5843] rseq(0x7f9e0f7affe0, 0x20, 0, 0x53053053 [pid 5841] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5843] <... rseq resumed>) = 0 [pid 5843] set_robust_list(0x7f9e0f7af9a0, 24 [pid 5841] ioctl(3, HCIDEVUP [pid 5843] <... set_robust_list resumed>) = 0 [pid 5843] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5843] read(202, "\x01\x03\x0c\x00", 1024) = 4 [pid 5843] writev(202, [{iov_base="\x04", iov_len=1}, {iov_base="\x0e\xfc", iov_len=2}, {iov_base="\x01\x03\x0c", iov_len=3}, {iov_base="\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"..., iov_len=249}], 4) = 255 [pid 5843] read(202, "\x01\x03\x10\x00", 1024) = 4 [pid 5843] writev(202, [{iov_base="\x04", iov_len=1}, {iov_base="\x0e\xfc", iov_len=2}, {iov_base="\x01\x03\x10", iov_len=3}, {iov_base="\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"..., iov_len=249}], 4) = 255 [ 105.936137][ T30] audit: type=1400 audit(1744964077.392:93): avc: denied { ioctl } for pid=5841 comm="syz-executor814" path="socket:[3658]" dev="sockfs" ino=3658 ioctlcmd=0x48c9 scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bluetooth_socket permissive=1 [ 105.937784][ T55] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [pid 5843] read(202, "\x01\x01\x10\x00", 1024) = 4 [pid 5843] writev(202, [{iov_base="\x04", iov_len=1}, {iov_base="\x0e\xfc", iov_len=2}, {iov_base="\x01\x01\x10", iov_len=3}, {iov_base="\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"..., iov_len=249}], 4) = 255 [ 105.980550][ T55] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [pid 5843] read(202, "\x01\x09\x10\x00", 1024) = 4 [pid 5843] writev(202, [{iov_base="\x04", iov_len=1}, {iov_base="\x0e\x0a", iov_len=2}, {iov_base="\x01\x09\x10", iov_len=3}, {iov_base="\x00\xaa\xaa\xaa\xaa\xaa\xaa", iov_len=7}], 4) = 13 [pid 5843] read(202, "\x01\x05\x10\x00", 1024) = 4 [pid 5843] writev(202, [{iov_base="\x04", iov_len=1}, {iov_base="\x0e\x0b", iov_len=2}, {iov_base="\x01\x05\x10", iov_len=3}, {iov_base="\x00\xfd\x03\x60\x04\x00\x06\x00", iov_len=8}], 4) = 14 [pid 5843] read(202, "\x01\x23\x0c\x00", 1024) = 4 [ 106.011537][ T55] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [pid 5843] writev(202, [{iov_base="\x04", iov_len=1}, {iov_base="\x0e\xfc", iov_len=2}, {iov_base="\x01\x23\x0c", iov_len=3}, {iov_base="\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"..., iov_len=249}], 4) = 255 [pid 5843] read(202, "\x01\x14\x0c\x00", 1024) = 4 [pid 5843] writev(202, [{iov_base="\x04", iov_len=1}, {iov_base="\x0e\xfc", iov_len=2}, {iov_base="\x01\x14\x0c", iov_len=3}, {iov_base="\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"..., iov_len=249}], 4) = 255 [pid 5843] read(202, "\x01\x38\x0c\x00", 1024) = 4 [ 106.064427][ T55] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [pid 5843] writev(202, [{iov_base="\x04", iov_len=1}, {iov_base="\x0e\xfc", iov_len=2}, {iov_base="\x01\x38\x0c", iov_len=3}, {iov_base="\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"..., iov_len=249}], 4) = 255 [pid 5843] read(202, "\x01\x39\x0c\x00", 1024) = 4 [pid 5843] writev(202, [{iov_base="\x04", iov_len=1}, {iov_base="\x0e\xfc", iov_len=2}, {iov_base="\x01\x39\x0c", iov_len=3}, {iov_base="\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"..., iov_len=249}], 4) = 255 [pid 5843] read(202, "\x01\x16\x0c\x02\x00\x7d", 1024) = 6 [pid 5843] writev(202, [{iov_base="\x04", iov_len=1}, {iov_base="\x0e\xfc", iov_len=2}, {iov_base="\x01\x16\x0c", iov_len=3}, {iov_base="\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"..., iov_len=249}], 4) = 255 [pid 5843] read(202, [pid 5841] <... ioctl resumed>, 0) = -1 EALREADY (Operation already in progress) [pid 5841] ioctl(3, HCISETSCAN [pid 5843] <... read resumed>"\x01\x1a\x0c\x01\x02", 1024) = 5 [pid 5843] writev(202, [{iov_base="\x04", iov_len=1}, {iov_base="\x0e\x04", iov_len=2}, {iov_base="\x01\x1a\x0c", iov_len=3}, {iov_base="\x00", iov_len=1}], 4) = 7 [pid 5841] <... ioctl resumed>, 0x7ffed527ed28) = 0 [pid 5843] rt_sigprocmask(SIG_BLOCK, ~[RT_1], [pid 5841] writev(202, [{iov_base="\x04", iov_len=1}, {iov_base="\x04\x0a", iov_len=2}, {iov_base="\xaa\xaa\xaa\xaa\xaa\x10\x00\x00\x00\x01", iov_len=10}], 3 [pid 5843] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5841] <... writev resumed>) = 13 [pid 5841] writev(202, [{iov_base="\x04", iov_len=1}, {iov_base="\x03\x0b", iov_len=2}, {iov_base="\x00\xc8\x00\xaa\xaa\xaa\xaa\xaa\x10\x01\x00", iov_len=11}], 3) = 14 [ 106.126727][ T55] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [pid 5841] writev(202, [{iov_base="\x04", iov_len=1}, {iov_base="\v\v", iov_len=2}, {iov_base="\x00\xc8\x00\x00\x00\x00\x00\x00\x00\x00\x00", iov_len=11}], 3 [pid 5843] madvise(0x7f9e0efaf000, 8372224, MADV_DONTNEED [pid 5841] <... writev resumed>) = 14 [pid 5841] writev(202, [{iov_base="\x04", iov_len=1}, {iov_base="\x3e\x13", iov_len=2}, {iov_base="\x01\x00\xc9\x00\x01\x00\xaa\xaa\xaa\xaa\xaa\x11\x00\x00\x00\x00\x00\x00\x00", iov_len=19}], 3) = 22 [pid 5841] futex(0x7f9e0f7af990, FUTEX_WAIT_BITSET|FUTEX_CLOCK_REALTIME, 2, NULL, FUTEX_BITSET_MATCH_ANY [pid 5843] <... madvise resumed>) = 0 [pid 5843] exit(0) = ? [pid 5843] +++ exited with 0 +++ [pid 5841] <... futex resumed>) = 0 [pid 5841] close(3) = 0 [pid 5841] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5841] getppid() = 0 [pid 5841] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5841] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5841] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5841] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5841] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5841] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5841] unshare(CLONE_NEWNS) = 0 [pid 5841] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5841] unshare(CLONE_NEWIPC) = 0 [pid 5841] unshare(CLONE_NEWCGROUP) = 0 [pid 5841] unshare(CLONE_NEWUTS) = 0 [ 106.331632][ T30] audit: type=1400 audit(1744964077.792:94): avc: denied { mounton } for pid=5841 comm="syz-executor814" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1 [pid 5841] unshare(CLONE_SYSVSEM) = 0 [pid 5841] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5841] write(3, "16777216", 8) = 8 [pid 5841] close(3) = 0 [pid 5841] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5841] write(3, "536870912", 9) = 9 [pid 5841] close(3) = 0 [pid 5841] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5841] write(3, "1024", 4) = 4 [pid 5841] close(3) = 0 [pid 5841] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5841] write(3, "8192", 4) = 4 [pid 5841] close(3) = 0 [pid 5841] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5841] write(3, "1024", 4) = 4 [pid 5841] close(3) = 0 [pid 5841] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5841] write(3, "1024", 4) = 4 [pid 5841] close(3) = 0 [pid 5841] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5841] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5841] close(3) = 0 [pid 5841] getpid() = 1 [pid 5841] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 52500(ms) [ 228.607906][ C0] rcu: (detected by 0, t=10505 jiffies, g=8821, q=143 ncpus=2) [ 228.615527][ C0] Sending NMI from CPU 0 to CPUs 1: [ 228.615548][ C1] NMI backtrace for cpu 1 [ 228.615559][ C1] CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.15.0-rc2-syzkaller-00257-gb5c6891b2c5b #0 PREEMPT(full) [ 228.615575][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 228.615582][ C1] RIP: 0010:lock_is_held_type+0x2d/0x150 [ 228.615622][ C1] Code: fa 41 57 41 56 41 55 41 bd ff ff ff ff 41 54 55 53 48 83 ec 08 8b 0d 46 11 14 05 85 c9 0f 84 dd 00 00 00 65 8b 05 0b b8 34 08 <85> c0 0f 85 ce 00 00 00 65 4c 8b 25 8b 7a 34 08 41 8b 94 24 ec 0a [ 228.615634][ C1] RSP: 0018:ffffc90000a08d50 EFLAGS: 00000002 [ 228.615646][ C1] RAX: 0000000000000000 RBX: ffff88807608c340 RCX: 0000000000000001 [ 228.615654][ C1] RDX: ffff88801dae2440 RSI: 00000000ffffffff RDI: ffff88807608c300 [ 228.615663][ C1] RBP: ffff88803567f400 R08: 0000000000000005 R09: 0000000000000000 [ 228.615671][ C1] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000001 [ 228.615679][ C1] R13: 00000000ffffffff R14: ffff88807608c340 R15: ffffffff8982a1f0 [ 228.615687][ C1] FS: 0000000000000000(0000) GS:ffff888124ab0000(0000) knlGS:0000000000000000 [ 228.615702][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 228.615711][ C1] CR2: 0000000000000000 CR3: 0000000078574000 CR4: 00000000003526f0 [ 228.615719][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 228.615727][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 228.615735][ C1] Call Trace: [ 228.615740][ C1] [ 228.615746][ C1] ? __pfx_advance_sched+0x10/0x10 [ 228.615760][ C1] advance_sched+0x721/0xc80 [ 228.615773][ C1] ? find_held_lock+0x2b/0x80 [ 228.615791][ C1] ? do_raw_spin_unlock+0x172/0x230 [ 228.615807][ C1] ? __pfx_advance_sched+0x10/0x10 [ 228.615818][ C1] __hrtimer_run_queues+0x1ff/0xad0 [ 228.615837][ C1] ? __pfx___hrtimer_run_queues+0x10/0x10 [ 228.615850][ C1] ? read_tsc+0x9/0x20 [ 228.615870][ C1] hrtimer_interrupt+0x397/0x8e0 [ 228.615889][ C1] __sysvec_apic_timer_interrupt+0x108/0x3f0 [ 228.615905][ C1] sysvec_apic_timer_interrupt+0x9f/0xc0 [ 228.615921][ C1] [ 228.615925][ C1] [ 228.615929][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 228.615944][ C1] RIP: 0010:pv_native_safe_halt+0xf/0x20 [ 228.615960][ C1] Code: 45 5d 02 c3 cc cc cc cc 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 93 5c 17 00 fb f4 cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90 [ 228.615971][ C1] RSP: 0018:ffffc90000197df8 EFLAGS: 000002c6 [ 228.615981][ C1] RAX: 000000000006f90b RBX: 0000000000000001 RCX: ffffffff8b729439 [ 228.615990][ C1] RDX: 0000000000000000 RSI: ffffffff8dbef927 RDI: ffffffff8bf464c0 [ 228.615998][ C1] RBP: ffffed1003b5c488 R08: 0000000000000001 R09: ffffed10170a65bd [ 228.616006][ C1] R10: ffff8880b8532deb R11: 0000000000000000 R12: 0000000000000001 [ 228.616014][ C1] R13: ffff88801dae2440 R14: ffffffff90866710 R15: 0000000000000000 [ 228.616025][ C1] ? ct_kernel_exit+0x139/0x190 [ 228.616044][ C1] default_idle+0x13/0x20 [ 228.616060][ C1] default_idle_call+0x6d/0xb0 [ 228.616077][ C1] do_idle+0x391/0x510 [ 228.616093][ C1] ? __pfx_do_idle+0x10/0x10 [ 228.616109][ C1] ? trace_sched_exit_tp+0x31/0x130 [ 228.616130][ C1] cpu_startup_entry+0x4f/0x60 [ 228.616145][ C1] start_secondary+0x21d/0x2b0 [ 228.616158][ C1] ? __pfx_start_secondary+0x10/0x10 [ 228.616173][ C1] common_startup_64+0x13e/0x148 [ 228.616193][ C1] [ 228.616543][ C0] rcu: rcu_preempt kthread starved for 490 jiffies! g8821 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 228.964485][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 228.974446][ C0] rcu: RCU grace-period kthread stack dump: [ 228.980323][ C0] task:rcu_preempt state:R running task stack:28712 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00004000 [ 228.993818][ C0] Call Trace: [ 228.997091][ C0] [ 229.000025][ C0] __schedule+0x116f/0x5de0 [ 229.004536][ C0] ? find_held_lock+0x2b/0x80 [ 229.009214][ C0] ? __lock_acquire+0x5ca/0x1ba0 [ 229.014147][ C0] ? __pfx___schedule+0x10/0x10 [ 229.019003][ C0] ? find_held_lock+0x2b/0x80 [ 229.023682][ C0] ? schedule+0x2d7/0x3a0 [ 229.028027][ C0] schedule+0xe7/0x3a0 [ 229.032107][ C0] schedule_timeout+0x123/0x290 [ 229.036959][ C0] ? __pfx_schedule_timeout+0x10/0x10 [ 229.042326][ C0] ? __pfx_process_timeout+0x10/0x10 [ 229.047611][ C0] ? _raw_spin_unlock_irqrestore+0x3b/0x80 [ 229.053416][ C0] ? prepare_to_swait_event+0xf5/0x480 [ 229.058884][ C0] rcu_gp_fqs_loop+0x1ea/0xb00 [ 229.063644][ C0] ? __pfx_rcu_gp_fqs_loop+0x10/0x10 [ 229.068927][ C0] ? rcu_is_watching+0x12/0xc0 [ 229.073684][ C0] ? _raw_spin_unlock_irqrestore+0x52/0x80 [ 229.079487][ C0] rcu_gp_kthread+0x270/0x380 [ 229.084176][ C0] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 229.089366][ C0] ? rcu_is_watching+0x12/0xc0 [ 229.094146][ C0] ? lockdep_hardirqs_on+0x7c/0x110 [ 229.099389][ C0] ? __kthread_parkme+0x19e/0x250 [ 229.104425][ C0] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 229.109615][ C0] kthread+0x3c2/0x780 [ 229.113680][ C0] ? __pfx_kthread+0x10/0x10 [ 229.118261][ C0] ? __pfx_kthread+0x10/0x10 [ 229.122841][ C0] ? __pfx_kthread+0x10/0x10 [ 229.127420][ C0] ? __pfx_kthread+0x10/0x10 [ 229.132001][ C0] ? rcu_is_watching+0x12/0xc0 [ 229.136760][ C0] ? __pfx_kthread+0x10/0x10 [ 229.141341][ C0] ret_from_fork+0x45/0x80 [ 229.145753][ C0] ? __pfx_kthread+0x10/0x10 [ 229.150334][ C0] ret_from_fork_asm+0x1a/0x30 [ 229.155109][ C0] [ 229.158125][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 229.164435][ C0] CPU: 0 UID: 0 PID: 5493 Comm: dhcpcd Not tainted 6.15.0-rc2-syzkaller-00257-gb5c6891b2c5b #0 PREEMPT(full) [ 229.176051][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 229.186097][ C0] RIP: 0010:smp_call_function_many_cond+0x4a5/0x1290 [ 229.192767][ C0] Code: 89 ee e8 5e 12 0c 00 85 ed 74 48 48 8b 44 24 20 49 89 c4 83 e0 07 49 c1 ec 03 48 89 c5 4d 01 f4 83 c5 03 e8 fd 16 0c 00 f3 90 <41> 0f b6 04 24 40 38 c5 7c 08 84 c0 0f 85 de 0b 00 00 8b 43 08 31 [ 229.212364][ C0] RSP: 0018:ffffc90003ebf8b8 EFLAGS: 00000293 [ 229.218425][ C0] RAX: 0000000000000000 RBX: ffff8880b853f740 RCX: ffffffff81af2699 [ 229.226386][ C0] RDX: ffff88802e42c880 RSI: ffffffff81af2673 RDI: 0000000000000005 [ 229.234347][ C0] RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000 [ 229.242307][ C0] R10: 0000000000000001 R11: 0000000000000000 R12: ffffed10170a7ee9 [ 229.250266][ C0] R13: 0000000000000001 R14: dffffc0000000000 R15: ffff8880b843b040 [ 229.258226][ C0] FS: 00007f8a2de55740(0000) GS:ffff8881249b0000(0000) knlGS:0000000000000000 [ 229.267148][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 229.273729][ C0] CR2: 00007f8a2e001580 CR3: 000000002a412000 CR4: 00000000003526f0 [ 229.281691][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 229.289668][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 229.297648][ C0] Call Trace: [ 229.300925][ C0] [ 229.303857][ C0] ? __pfx_flush_tlb_func+0x10/0x10 [ 229.309050][ C0] on_each_cpu_cond_mask+0x40/0x90 [ 229.314163][ C0] flush_tlb_mm_range+0x322/0x1780 [ 229.319268][ C0] ? find_held_lock+0x2b/0x80 [ 229.323940][ C0] ? copy_process+0x7947/0x91a0 [ 229.328796][ C0] ? __pfx_flush_tlb_mm_range+0x10/0x10 [ 229.334330][ C0] ? up_write+0x1b2/0x520 [ 229.338655][ C0] copy_process+0x7961/0x91a0 [ 229.343348][ C0] ? __pfx_copy_process+0x10/0x10 [ 229.348370][ C0] ? find_held_lock+0x2b/0x80 [ 229.353119][ C0] ? sk_setsockopt+0xd5f/0x3810 [ 229.357980][ C0] ? sk_setsockopt+0x267/0x3810 [ 229.362832][ C0] ? __pfx_sk_setsockopt+0x10/0x10 [ 229.367937][ C0] ? selinux_netlbl_socket_setsockopt+0x183/0x470 [ 229.374370][ C0] kernel_clone+0xfc/0x960 [ 229.378787][ C0] ? __pfx_kernel_clone+0x10/0x10 [ 229.383820][ C0] __do_sys_clone+0xce/0x120 [ 229.388421][ C0] ? __pfx___do_sys_clone+0x10/0x10 [ 229.393624][ C0] ? __sys_setsockopt+0x1a0/0x230 [ 229.398638][ C0] ? __sys_setsockopt+0x1cd/0x230 [ 229.403662][ C0] do_syscall_64+0xcd/0x260 [ 229.408165][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 229.414049][ C0] RIP: 0033:0x7f8a2df05a12 [ 229.418454][ C0] Code: 41 5d 41 5e 41 5f c3 64 48 8b 04 25 10 00 00 00 45 31 c0 31 d2 31 f6 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 10 48 8b 15 e7 43 0f 00 f7 d8 64 89 02 48 83 [ 229.438052][ C0] RSP: 002b:00007fffe26f61c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 229.446456][ C0] RAX: ffffffffffffffda RBX: 0000558010850d01 RCX: 00007f8a2df05a12 [ 229.454418][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 [ 229.462382][ C0] RBP: 00007fffe2716738 R08: 0000000000000000 R09: 0000558010850d40 [ 229.470340][ C0] R10: 00007f8a2de55a10 R11: 0000000000000246 R12: 0000000000000000 [ 229.478303][ C0] R13: 0000000000000000 R14: 0000000000000000 R15: 0000558010850d74 [ 229.486275][ C0]