./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2000009596

<...>
[   28.386737][ T4671] dhcpcd-run-hook (4671) used greatest stack depth: 22640 bytes left
forked to background, child pid 4667
[   29.756198][ T4668] 8021q: adding VLAN 0 to HW filter on device bond0
[   29.766587][ T4668] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK

syzkaller
Warning: Permanently added '10.128.10.7' (ECDSA) to the list of known hosts.
execve("./syz-executor2000009596", ["./syz-executor2000009596"], 0x7fff481796a0 /* 10 vars */) = 0
brk(NULL)                               = 0x55555644a000
brk(0x55555644ac40)                     = 0x55555644ac40
arch_prctl(ARCH_SET_FS, 0x55555644a300) = 0
uname({sysname="Linux", nodename="syzkaller", ...}) = 0
set_tid_address(0x55555644a5d0)         = 4998
set_robust_list(0x55555644a5e0, 24)     = 0
rt_sigaction(SIGRTMIN, {sa_handler=0x7f5568ed9dc0, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7f5568eda490}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {sa_handler=0x7f5568ed9e60, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5568eda490}, NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor2000009596", 4096) = 28
brk(0x55555646bc40)                     = 0x55555646bc40
brk(0x55555646c000)                     = 0x55555646c000
mprotect(0x7f5568f9b000, 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
unshare(CLONE_NEWPID)                   = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4999 attached
, child_tidptr=0x55555644a5d0) = 4999
[pid  4999] set_robust_list(0x55555644a5e0, 24) = 0
[pid  4999] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid  4999] socket(AF_BLUETOOTH, SOCK_RAW, BTPROTO_HCI) = 3
[pid  4999] openat(AT_FDCWD, "/dev/vhci", O_RDWR) = 4
[pid  4999] dup2(4, 202)                = 202
[pid  4999] close(4)                    = 0
[pid  4999] write(202, "\xff\x00", 2)   = 2
[pid  4999] read(202, "\xff\x00\x00\x00", 4) = 4
[pid  4999] mmap(NULL, 8392704, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f55686c9000
[pid  4999] mprotect(0x7f55686ca000, 8388608, PROT_READ|PROT_WRITE) = 0
[pid  4999] clone(child_stack=0x7f5568ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[2], tls=0x7f5568ec9700, child_tidptr=0x7f5568ec99d0) = 2
[pid  4999] ioctl(3, HCIDEVUP./strace-static-x86_64: Process 5001 attached
 <unfinished ...>
[pid  5001] set_robust_list(0x7f5568ec99e0, 24) = 0
[pid  5001] read(202, "\x01\x03\x0c\x00", 1024) = 4
[pid  5001] 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  5001] read(202, "\x01\x03\x10\x00", 1024) = 4
[pid  5001] 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
[pid  5001] read(202, "\x01\x01\x10\x00", 1024) = 4
[pid  5001] 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
[pid  5001] read(202, "\x01\x09\x10\x00", 1024) = 4
[pid  5001] 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  5001] read(202, "\x01\x05\x10\x00", 1024) = 4
[pid  5001] 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  5001] read(202, "\x01\x23\x0c\x00", 1024) = 4
[pid  5001] 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  5001] read(202, "\x01\x14\x0c\x00", 1024) = 4
[pid  5001] 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  5001] read(202, "\x01\x25\x0c\x00", 1024) = 4
[pid  5001] writev(202, [{iov_base="\x04", iov_len=1}, {iov_base="\x0e\xfc", iov_len=2}, {iov_base="\x01\x25\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  5001] read(202, "\x01\x38\x0c\x00", 1024) = 4
syzkaller login: [   54.724537][ T5000] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1
[   54.732573][ T5000] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9
[   54.740839][ T5000] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9
[   54.753432][ T5000] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4
[   54.764006][ T5000] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3
[pid  5001] 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  5001] read(202, "\x01\x39\x0c\x00", 1024) = 4
[pid  5001] 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  5001] read(202, "\x01\x16\x0c\x02\x00\x7d", 1024) = 6
[pid  5001] 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  4999] <... ioctl resumed>, 0)     = -1 EALREADY (Operation already in progress)
[pid  4999] ioctl(3, HCISETSCAN <unfinished ...>
[pid  5001] read(202, "\x01\x1a\x0c\x01\x02", 1024) = 5
[pid  5001] 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  4999] <... ioctl resumed>, 0x7ffe945710b0) = 0
[pid  4999] 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 <unfinished ...>
[pid  5001] madvise(0x7f55686c9000, 8372224, MADV_DONTNEED <unfinished ...>
[pid  4999] <... writev resumed>)       = 13
[pid  4999] 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
[pid  4999] 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) = 14
[pid  4999] 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  4999] futex(0x7f5568ec99d0, FUTEX_WAIT, 2, NULL <unfinished ...>
[pid  5001] <... madvise resumed>)      = 0
[pid  5001] exit(0)                     = ?
[pid  5001] +++ exited with 0 +++
[pid  4999] <... futex resumed>)        = 0
[pid  4999] close(3)                    = 0
[pid  4999] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  4999] setsid()                    = 1
[pid  4999] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  4999] dup2(3, 201)                = 201
[pid  4999] close(3)                    = 0
[pid  4999] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid  4999] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid  4999] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid  4999] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid  4999] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid  4999] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid  4999] unshare(CLONE_NEWNS)        = 0
[pid  4999] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[pid  4999] unshare(CLONE_NEWIPC)       = 0
[pid  4999] unshare(CLONE_NEWCGROUP)    = 0
[pid  4999] unshare(CLONE_NEWUTS)       = 0
[pid  4999] unshare(CLONE_SYSVSEM)      = 0
[pid  4999] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3
[pid  4999] write(3, "16777216", 8)     = 8
[pid  4999] close(3)                    = 0
[pid  4999] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3
[pid  4999] write(3, "536870912", 9)    = 9
[pid  4999] close(3)                    = 0
[pid  4999] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3
[pid  4999] write(3, "1024", 4)         = 4
[pid  4999] close(3)                    = 0
[pid  4999] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3
[pid  4999] write(3, "8192", 4)         = 4
[pid  4999] close(3)                    = 0
[pid  4999] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3
[pid  4999] write(3, "1024", 4)         = 4
[pid  4999] close(3)                    = 0
[pid  4999] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3
[pid  4999] write(3, "1024", 4)         = 4
[pid  4999] close(3)                    = 0
[pid  4999] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3
[pid  4999] write(3, "1024 1048576 500 1024", 21) = 21
[   54.772975][ T5000] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2
[pid  4999] close(3)                    = 0
[pid  4999] getpid()                    = 1
[pid  4999] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PTRACE|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_NICE|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, permitted=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PTRACE|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_NICE|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, inheritable=0}) = 0
[pid  4999] capset({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, permitted=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, inheritable=0}) = 0
[pid  4999] unshare(CLONE_NEWNET)       = 0
[pid  4999] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid  4999] write(3, "0 65535", 7)      = 7
[pid  4999] close(3)                    = 0
[pid  4999] mkdir("/dev/binderfs", 0777) = 0
[pid  4999] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0
[pid  4999] symlink("/dev/binderfs", "./binderfs") = 0
[pid  4999] futex(0x7f5568fa140c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4999] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f55686a8000
[pid  4999] mprotect(0x7f55686a9000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  4999] clone(child_stack=0x7f55686c83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5005 attached
, parent_tid=[3], tls=0x7f55686c8700, child_tidptr=0x7f55686c89d0) = 3
[pid  4999] futex(0x7f5568fa1408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4999] futex(0x7f5568fa140c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5005] set_robust_list(0x7f55686c89e0, 24) = 0
[pid  5005] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  5005] setns(201, 0)               = 0
[pid  5005] socket(AF_BLUETOOTH, SOCK_SEQPACKET, BTPROTO_SCO) = 4
[pid  5005] setns(3, 0)                 = 0
[pid  5005] close(3)                    = 0
[pid  5005] futex(0x7f5568fa140c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  4999] <... futex resumed>)        = 0
[pid  4999] futex(0x7f5568fa1408, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4999] futex(0x7f5568fa140c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5005] connect(4, {sa_family=AF_BLUETOOTH, sco_bdaddr=aa:aa:aa:aa:aa:00}, 8 <unfinished ...>
[pid  4999] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  4999] futex(0x7f5568fa141c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4999] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f5568687000
[pid  4999] mprotect(0x7f5568688000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  4999] clone(child_stack=0x7f55686a73f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5006 attached
, parent_tid=[4], tls=0x7f55686a7700, child_tidptr=0x7f55686a79d0) = 4
[pid  4999] futex(0x7f5568fa1418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4999] futex(0x7f5568fa141c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=550000000} <unfinished ...>
[pid  5006] set_robust_list(0x7f55686a79e0, 24) = 0
[pid  5006] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", 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_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128) = 3
[pid  5006] futex(0x7f5568fa141c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  4999] <... futex resumed>)        = 0
[pid  4999] futex(0x7f5568fa1418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4999] futex(0x7f5568fa141c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=550000000} <unfinished ...>
[pid  5006] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="percpu_alloc_percpu", prog_fd=3}}, 16) = 5
[pid  5006] futex(0x7f5568fa141c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  4999] <... futex resumed>)        = 0
[pid  5006] futex(0x7f5568fa1418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  4999] exit_group(1 <unfinished ...>
[pid  5006] <... futex resumed>)        = ?
[pid  5005] <... connect resumed>)      = ?
[pid  5006] +++ exited with 1 +++
[pid  5005] +++ exited with 1 +++
[pid  4999] <... exit_group resumed>)   = ?
[   55.059808][ T4999] ==================================================================
[   55.067874][ T4999] BUG: KASAN: slab-use-after-free in hci_conn_hash_flush+0x244/0x270
[   55.075945][ T4999] Read of size 8 at addr ffff88807dfcc000 by task syz-executor200/4999
[   55.084162][ T4999] 
[   55.086470][ T4999] CPU: 1 PID: 4999 Comm: syz-executor200 Not tainted 6.3.0-syzkaller-07946-g281900a923d4 #0
[   55.096526][ T4999] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
[   55.106569][ T4999] Call Trace:
[   55.109832][ T4999]  <TASK>
[   55.112750][ T4999]  dump_stack_lvl+0xd9/0x150
[   55.117326][ T4999]  print_address_description.constprop.0+0x2c/0x3c0
[   55.123909][ T4999]  ? hci_conn_hash_flush+0x244/0x270
[   55.129195][ T4999]  kasan_report+0x11c/0x130
[   55.133693][ T4999]  ? hci_conn_hash_flush+0x244/0x270
[   55.138972][ T4999]  hci_conn_hash_flush+0x244/0x270
[   55.144089][ T4999]  hci_dev_close_sync+0x5fb/0x1200
[   55.149219][ T4999]  ? hci_reset_sync+0x50/0x50
[   55.153924][ T4999]  ? __kmem_cache_free+0xaf/0x2d0
[   55.158964][ T4999]  hci_dev_do_close+0x31/0x70
[   55.163649][ T4999]  hci_unregister_dev+0x1ce/0x580
[   55.168674][ T4999]  vhci_release+0x80/0xf0
[   55.173006][ T4999]  __fput+0x27c/0xa90
[   55.177057][ T4999]  ? vhci_close_dev+0x50/0x50
[   55.181738][ T4999]  task_work_run+0x16f/0x270
[   55.186332][ T4999]  ? task_work_cancel+0x30/0x30
[   55.191186][ T4999]  do_exit+0xad3/0x2960
[   55.195348][ T4999]  ? preempt_schedule_thunk+0x1a/0x20
[   55.200728][ T4999]  ? mm_update_next_owner+0x7b0/0x7b0
[   55.206096][ T4999]  ? preempt_schedule_thunk+0x1a/0x20
[   55.211479][ T4999]  do_group_exit+0xd4/0x2a0
[   55.215984][ T4999]  __x64_sys_exit_group+0x3e/0x50
[   55.221007][ T4999]  do_syscall_64+0x39/0xb0
[   55.225423][ T4999]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   55.231321][ T4999] RIP: 0033:0x7f5568f16be9
[   55.235731][ T4999] Code: Unable to access opcode bytes at 0x7f5568f16bbf.
[   55.242735][ T4999] RSP: 002b:00007ffe94571018 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   55.251142][ T4999] RAX: ffffffffffffffda RBX: 00007f5568fa13b0 RCX: 00007f5568f16be9
[   55.259108][ T4999] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
[   55.267070][ T4999] RBP: 0000000000000001 R08: ffffffffffffffb8 R09: 0000000000000010
[   55.275033][ T4999] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5568fa13b0
[   55.282995][ T4999] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001
[   55.290965][ T4999]  </TASK>
[   55.293974][ T4999] 
[   55.296286][ T4999] Allocated by task 5005:
[   55.300601][ T4999]  kasan_save_stack+0x22/0x40
[   55.305274][ T4999]  kasan_set_track+0x25/0x30
[   55.309864][ T4999]  __kasan_kmalloc+0xa2/0xb0
[   55.314446][ T4999]  hci_conn_add+0xb8/0x16b0
[   55.318950][ T4999]  hci_connect_sco+0x3c7/0x1050
[   55.323802][ T4999]  sco_sock_connect+0x2d7/0xae0
[   55.328652][ T4999]  __sys_connect_file+0x153/0x1a0
[   55.333672][ T4999]  __sys_connect+0x165/0x1a0
[   55.338258][ T4999]  __x64_sys_connect+0x73/0xb0
[   55.343015][ T4999]  do_syscall_64+0x39/0xb0
[   55.347424][ T4999]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   55.353317][ T4999] 
[   55.355628][ T4999] Freed by task 4999:
[   55.359592][ T4999]  kasan_save_stack+0x22/0x40
[   55.364263][ T4999]  kasan_set_track+0x25/0x30
[   55.368854][ T4999]  kasan_save_free_info+0x2e/0x40
[   55.373875][ T4999]  ____kasan_slab_free+0x160/0x1c0
[   55.378986][ T4999]  slab_free_freelist_hook+0x8b/0x1c0
[   55.384350][ T4999]  __kmem_cache_free+0xaf/0x2d0
[   55.389194][ T4999]  device_release+0xa3/0x240
[   55.393780][ T4999]  kobject_put+0x1c2/0x4d0
[   55.398205][ T4999]  put_device+0x1f/0x30
[   55.402360][ T4999]  hci_conn_del+0x1e5/0x950
[   55.406865][ T4999]  hci_conn_unlink+0x2ce/0x460
[   55.411625][ T4999]  hci_conn_unlink+0x362/0x460
[   55.416384][ T4999]  hci_conn_hash_flush+0x19b/0x270
[   55.421499][ T4999]  hci_dev_close_sync+0x5fb/0x1200
[   55.426619][ T4999]  hci_dev_do_close+0x31/0x70
[   55.431286][ T4999]  hci_unregister_dev+0x1ce/0x580
[   55.436315][ T4999]  vhci_release+0x80/0xf0
[   55.440640][ T4999]  __fput+0x27c/0xa90
[   55.444623][ T4999]  task_work_run+0x16f/0x270
[   55.449203][ T4999]  do_exit+0xad3/0x2960
[   55.453351][ T4999]  do_group_exit+0xd4/0x2a0
[   55.457852][ T4999]  __x64_sys_exit_group+0x3e/0x50
[   55.462868][ T4999]  do_syscall_64+0x39/0xb0
[   55.467276][ T4999]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   55.473168][ T4999] 
[   55.475483][ T4999] The buggy address belongs to the object at ffff88807dfcc000
[   55.475483][ T4999]  which belongs to the cache kmalloc-4k of size 4096
[   55.489527][ T4999] The buggy address is located 0 bytes inside of
[   55.489527][ T4999]  freed 4096-byte region [ffff88807dfcc000, ffff88807dfcd000)
[   55.503226][ T4999] 
[   55.505538][ T4999] The buggy address belongs to the physical page:
[   55.511937][ T4999] page:ffffea0001f7f200 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7dfc8
[   55.522079][ T4999] head:ffffea0001f7f200 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   55.531003][ T4999] anon flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
[   55.539413][ T4999] raw: 00fff00000010200 ffff888012442140 0000000000000000 dead000000000001
[   55.547985][ T4999] raw: 0000000000000000 0000000000040004 00000001ffffffff 0000000000000000
[   55.556552][ T4999] page dumped because: kasan: bad access detected
[   55.562948][ T4999] page_owner tracks the page as allocated
[   55.568646][ T4999] page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd2040(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 4462, tgid 4462 (udevd), ts 17857499357, free_ts 17843573034
[   55.588608][ T4999]  post_alloc_hook+0x2db/0x350
[   55.593372][ T4999]  get_page_from_freelist+0x1190/0x2e20
[   55.598915][ T4999]  __alloc_pages+0x1cb/0x4a0
[   55.603504][ T4999]  alloc_pages+0x1aa/0x270
[   55.607915][ T4999]  allocate_slab+0x25f/0x390
[   55.612497][ T4999]  ___slab_alloc+0xa91/0x1400
[   55.617169][ T4999]  __slab_alloc.constprop.0+0x56/0xa0
[   55.622535][ T4999]  __kmem_cache_alloc_node+0x136/0x320
[   55.627989][ T4999]  __kmalloc+0x4e/0x190
[   55.632162][ T4999]  tomoyo_realpath_from_path+0xc3/0x600
[   55.637706][ T4999]  tomoyo_check_open_permission+0x29a/0x3a0
[   55.643598][ T4999]  tomoyo_file_open+0xa1/0xc0
[   55.648275][ T4999]  security_file_open+0x49/0xb0
[   55.653125][ T4999]  do_dentry_open+0x575/0x13f0
[   55.657880][ T4999]  path_openat+0x1baa/0x2750
[   55.662459][ T4999]  do_filp_open+0x1ba/0x410
[   55.666954][ T4999] page last free stack trace:
[   55.671613][ T4999]  free_pcp_prepare+0x5da/0xa60
[   55.676471][ T4999]  free_unref_page+0x1d/0x490
[   55.681146][ T4999]  __unfreeze_partials+0x17c/0x1a0
[   55.686250][ T4999]  qlist_free_all+0x6a/0x170
[   55.690843][ T4999]  kasan_quarantine_reduce+0x195/0x220
[   55.696302][ T4999]  __kasan_slab_alloc+0x63/0x90
[   55.701151][ T4999]  kmem_cache_alloc+0x17c/0x3b0
[   55.705994][ T4999]  getname_flags.part.0+0x50/0x4f0
[   55.711099][ T4999]  getname+0x92/0xd0
[   55.714983][ T4999]  do_sys_openat2+0xf5/0x4c0
[   55.719567][ T4999]  __x64_sys_openat+0x143/0x1f0
[   55.724411][ T4999]  do_syscall_64+0x39/0xb0
[   55.728825][ T4999]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   55.734724][ T4999] 
[   55.737037][ T4999] Memory state around the buggy address:
[   55.742652][ T4999]  ffff88807dfcbf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   55.750714][ T4999]  ffff88807dfcbf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   55.758765][ T4999] >ffff88807dfcc000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   55.766810][ T4999]                    ^
[   55.770871][ T4999]  ffff88807dfcc080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   55.778920][ T4999]  ffff88807dfcc100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   55.786968][ T4999] ==================================================================
[   55.795389][ T4999] Kernel panic - not syncing: KASAN: panic_on_warn set ...
[   55.802595][ T4999] CPU: 0 PID: 4999 Comm: syz-executor200 Not tainted 6.3.0-syzkaller-07946-g281900a923d4 #0
[   55.812669][ T4999] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
[   55.822718][ T4999] Call Trace:
[   55.825979][ T4999]  <TASK>
[   55.828910][ T4999]  dump_stack_lvl+0xd9/0x150
[   55.833486][ T4999]  panic+0x688/0x730
[   55.837368][ T4999]  ? panic_smp_self_stop+0x90/0x90
[   55.842466][ T4999]  ? preempt_schedule_thunk+0x1a/0x20
[   55.847826][ T4999]  ? preempt_schedule_common+0x45/0xb0
[   55.853271][ T4999]  check_panic_on_warn+0xb1/0xc0
[   55.858761][ T4999]  end_report+0xe9/0x120
[   55.862989][ T4999]  ? hci_conn_hash_flush+0x244/0x270
[   55.868260][ T4999]  kasan_report+0xf9/0x130
[   55.872661][ T4999]  ? hci_conn_hash_flush+0x244/0x270
[   55.877950][ T4999]  hci_conn_hash_flush+0x244/0x270
[   55.883048][ T4999]  hci_dev_close_sync+0x5fb/0x1200
[   55.888146][ T4999]  ? hci_reset_sync+0x50/0x50
[   55.892806][ T4999]  ? __kmem_cache_free+0xaf/0x2d0
[   55.897836][ T4999]  hci_dev_do_close+0x31/0x70
[   55.902510][ T4999]  hci_unregister_dev+0x1ce/0x580
[   55.907517][ T4999]  vhci_release+0x80/0xf0
[   55.911830][ T4999]  __fput+0x27c/0xa90
[   55.915797][ T4999]  ? vhci_close_dev+0x50/0x50
[   55.920459][ T4999]  task_work_run+0x16f/0x270
[   55.925035][ T4999]  ? task_work_cancel+0x30/0x30
[   55.929867][ T4999]  do_exit+0xad3/0x2960
[   55.934004][ T4999]  ? preempt_schedule_thunk+0x1a/0x20
[   55.939382][ T4999]  ? mm_update_next_owner+0x7b0/0x7b0
[   55.944740][ T4999]  ? preempt_schedule_thunk+0x1a/0x20
[   55.950102][ T4999]  do_group_exit+0xd4/0x2a0
[   55.954597][ T4999]  __x64_sys_exit_group+0x3e/0x50
[   55.959620][ T4999]  do_syscall_64+0x39/0xb0
[   55.964019][ T4999]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   55.969900][ T4999] RIP: 0033:0x7f5568f16be9
[   55.974296][ T4999] Code: Unable to access opcode bytes at 0x7f5568f16bbf.
[   55.981295][ T4999] RSP: 002b:00007ffe94571018 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   55.989690][ T4999] RAX: ffffffffffffffda RBX: 00007f5568fa13b0 RCX: 00007f5568f16be9
[   55.997642][ T4999] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
[   56.005592][ T4999] RBP: 0000000000000001 R08: ffffffffffffffb8 R09: 0000000000000010
[   56.013543][ T4999] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5568fa13b0
[   56.021493][ T4999] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001
[   56.029448][ T4999]  </TASK>
[   56.032608][ T4999] Kernel Offset: disabled
[   56.036920][ T4999] Rebooting in 86400 seconds..