./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1260017551

<...>
Warning: Permanently added '10.128.0.209' (ED25519) to the list of known hosts.
execve("./syz-executor1260017551", ["./syz-executor1260017551"], 0x7ffd97546f70 /* 10 vars */) = 0
brk(NULL)                               = 0x555556559000
brk(0x555556559d40)                     = 0x555556559d40
arch_prctl(ARCH_SET_FS, 0x5555565593c0) = 0
set_tid_address(0x555556559690)         = 5052
set_robust_list(0x5555565596a0, 24)     = 0
rseq(0x555556559ce0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor1260017551", 4096) = 28
getrandom("\x25\x64\x44\xce\x97\x12\xb2\x30", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x555556559d40
brk(0x55555657ad40)                     = 0x55555657ad40
brk(0x55555657b000)                     = 0x55555657b000
mprotect(0x7f829740c000, 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 5053 attached
, child_tidptr=0x555556559690) = 5053
[pid  5053] set_robust_list(0x5555565596a0, 24) = 0
[pid  5053] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid  5053] socket(AF_BLUETOOTH, SOCK_RAW, BTPROTO_HCI) = 3
[pid  5053] openat(AT_FDCWD, "/dev/vhci", O_RDWR) = 4
[pid  5053] dup2(4, 202)                = 202
[pid  5053] close(4)                    = 0
[pid  5053] write(202, "\xff\x00", 2)   = 2
[pid  5053] read(202, "\xff\x00\x00\x00", 4) = 4
[pid  5053] rt_sigaction(SIGRT_1, {sa_handler=0x7f82973ae440, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f829739fac0}, NULL, 8) = 0
[pid  5053] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5053] mmap(NULL, 8392704, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f8296b49000
[pid  5053] mprotect(0x7f8296b4a000, 8388608, PROT_READ|PROT_WRITE) = 0
[pid  5053] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5053] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f8297349990, parent_tid=0x7f8297349990, exit_signal=0, stack=0x7f8296b49000, stack_size=0x800300, tls=0x7f82973496c0}./strace-static-x86_64: Process 5056 attached
 <unfinished ...>
[pid  5056] rseq(0x7f8297349fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5053] <... clone3 resumed> => {parent_tid=[2]}, 88) = 2
[pid  5056] <... rseq resumed>)         = 0
[pid  5053] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5056] set_robust_list(0x7f82973499a0, 24 <unfinished ...>
[pid  5053] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5056] <... set_robust_list resumed>) = 0
[pid  5053] ioctl(3, HCIDEVUP <unfinished ...>
[pid  5056] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5056] read(202, "\x01\x03\x0c\x00", 1024) = 4
[pid  5056] 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  5056] read(202, "\x01\x03\x10\x00", 1024) = 4
[pid  5056] 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  5056] read(202, "\x01\x01\x10\x00", 1024) = 4
[pid  5056] 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  5056] read(202, "\x01\x09\x10\x00", 1024) = 4
[pid  5056] 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  5056] read(202, "\x01\x05\x10\x00", 1024) = 4
[pid  5056] 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  5056] read(202, "\x01\x23\x0c\x00", 1024) = 4
[   87.383488][ T5054] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1
[   87.393457][ T5054] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9
[   87.402433][ T5054] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9
[pid  5056] 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  5056] read(202, "\x01\x14\x0c\x00", 1024) = 4
[pid  5056] 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  5056] read(202, "\x01\x25\x0c\x00", 1024) = 4
[   87.433232][ T5054] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4
[pid  5056] 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  5056] read(202, "\x01\x38\x0c\x00", 1024) = 4
[pid  5056] 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  5056] read(202, "\x01\x39\x0c\x00", 1024) = 4
[pid  5056] 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  5056] read(202, "\x01\x16\x0c\x02\x00\x7d", 1024) = 6
[pid  5056] 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  5053] <... ioctl resumed>, 0)     = -1 EALREADY (Operation already in progress)
[pid  5053] ioctl(3, HCISETSCAN <unfinished ...>
[pid  5056] read(202, "\x01\x1a\x0c\x01\x02", 1024) = 5
[pid  5056] 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  5056] rt_sigprocmask(SIG_BLOCK, ~[RT_1],  <unfinished ...>
[pid  5053] <... ioctl resumed>, 0x7ffc9ef0d084) = 0
[pid  5056] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5053] 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  5056] madvise(0x7f8296b49000, 8372224, MADV_DONTNEED) = 0
[pid  5056] exit(0)                     = ?
[pid  5053] <... writev resumed>)       = 13
[pid  5056] +++ exited with 0 +++
[pid  5053] 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  5053] 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
[   87.474866][ T5054] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3
[   87.483402][ T5054] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2
[pid  5053] 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  5053] close(3)                    = 0
[pid  5053] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5053] setsid()                    = 1
[pid  5053] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid  5053] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid  5053] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid  5053] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid  5053] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid  5053] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid  5053] unshare(CLONE_NEWNS)        = 0
[pid  5053] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[pid  5053] unshare(CLONE_NEWIPC)       = 0
[pid  5053] unshare(CLONE_NEWCGROUP)    = 0
[pid  5053] unshare(CLONE_NEWUTS)       = 0
[pid  5053] unshare(CLONE_SYSVSEM)      = 0
[pid  5053] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3
[pid  5053] write(3, "16777216", 8)     = 8
[pid  5053] close(3)                    = 0
[pid  5053] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3
[pid  5053] write(3, "536870912", 9)    = 9
[pid  5053] close(3)                    = 0
[pid  5053] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3
[pid  5053] write(3, "1024", 4)         = 4
[pid  5053] close(3)                    = 0
[pid  5053] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3
[pid  5053] write(3, "8192", 4)         = 4
[pid  5053] close(3)                    = 0
[pid  5053] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3
[pid  5053] write(3, "1024", 4)         = 4
[pid  5053] close(3)                    = 0
[pid  5053] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3
[pid  5053] write(3, "1024", 4)         = 4
[pid  5053] close(3)                    = 0
[pid  5053] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3
[pid  5053] write(3, "1024 1048576 500 1024", 21) = 21
[pid  5053] close(3)                    = 0
[pid  5053] getpid()                    = 1
[pid  5053] 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  5053] 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  5053] unshare(CLONE_NEWNET)       = 0
[pid  5053] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid  5053] write(3, "0 65535", 7)      = 7
[pid  5053] close(3)                    = 0
[pid  5053] mkdir("/dev/binderfs", 0777) = 0
[pid  5053] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0
[pid  5053] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5053] openat(AT_FDCWD, "/dev/rfkill", O_WRONLY|O_NONBLOCK) = 3
[   87.876766][ T5053] 
[   87.879136][ T5053] ======================================================
[   87.886166][ T5053] WARNING: possible circular locking dependency detected
[   87.893210][ T5053] 6.6.0-rc2-next-20230921-syzkaller #0 Not tainted
[   87.899725][ T5053] ------------------------------------------------------
[   87.907364][ T5053] syz-executor126/5053 is trying to acquire lock:
[   87.913803][ T5053] ffff88807df1cdc0 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}, at: __flush_work+0xfa/0xa10
[   87.924329][ T5053] 
[   87.924329][ T5053] but task is already holding lock:
[   87.931889][ T5053] ffff88807df1d0b8 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close+0x26/0x90
[   87.941195][ T5053] 
[   87.941195][ T5053] which lock already depends on the new lock.
[   87.941195][ T5053] 
[   87.951625][ T5053] 
[   87.951625][ T5053] the existing dependency chain (in reverse order) is:
[   87.960744][ T5053] 
[   87.960744][ T5053] -> #3 (&hdev->req_lock){+.+.}-{3:3}:
[   87.968425][ T5053]        __mutex_lock+0x181/0x1340
[   87.973672][ T5053]        hci_dev_do_close+0x26/0x90
[   87.978900][ T5053]        hci_rfkill_set_block+0x1b9/0x200
[   87.984631][ T5053]        rfkill_set_block+0x200/0x550
[   87.990011][ T5053]        rfkill_fop_write+0x2d4/0x570
[   87.995420][ T5053]        vfs_write+0x2a4/0xe40
[   88.000205][ T5053]        ksys_write+0x1f0/0x250
[   88.005093][ T5053]        do_syscall_64+0x38/0xb0
[   88.010049][ T5053]        entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   88.016491][ T5053] 
[   88.016491][ T5053] -> #2 (rfkill_global_mutex){+.+.}-{3:3}:
[   88.024506][ T5053]        __mutex_lock+0x181/0x1340
[   88.029639][ T5053]        rfkill_register+0x3a/0xb30
[   88.034902][ T5053]        hci_register_dev+0x43a/0xd40
[   88.040309][ T5053]        __vhci_create_device+0x393/0x800
[   88.046217][ T5053]        vhci_write+0x2c7/0x470
[   88.051083][ T5053]        vfs_write+0x650/0xe40
[   88.055902][ T5053]        ksys_write+0x12f/0x250
[   88.060899][ T5053]        do_syscall_64+0x38/0xb0
[   88.065869][ T5053]        entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   88.072315][ T5053] 
[   88.072315][ T5053] -> #1 (&data->open_mutex){+.+.}-{3:3}:
[   88.080231][ T5053]        __mutex_lock+0x181/0x1340
[   88.085389][ T5053]        vhci_send_frame+0x67/0xa0
[   88.090541][ T5053]        hci_send_frame+0x220/0x470
[   88.095842][ T5053]        hci_tx_work+0x1456/0x1e40
[   88.100977][ T5053]        process_one_work+0x884/0x15c0
[   88.106465][ T5053]        worker_thread+0x8b9/0x1290
[   88.111684][ T5053]        kthread+0x33c/0x440
[   88.116308][ T5053]        ret_from_fork+0x45/0x80
[   88.121284][ T5053]        ret_from_fork_asm+0x11/0x20
[   88.126590][ T5053] 
[   88.126590][ T5053] -> #0 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}:
[   88.135811][ T5053]        __lock_acquire+0x2e3d/0x5de0
[   88.141214][ T5053]        lock_acquire+0x1ae/0x510
[   88.146263][ T5053]        __flush_work+0x103/0xa10
[   88.151298][ T5053]        hci_dev_close_sync+0x22d/0x1160
[   88.156938][ T5053]        hci_dev_do_close+0x2e/0x90
[   88.162140][ T5053]        hci_rfkill_set_block+0x1b9/0x200
[   88.167881][ T5053]        rfkill_set_block+0x200/0x550
[   88.173286][ T5053]        rfkill_fop_write+0x2d4/0x570
[   88.178698][ T5053]        vfs_write+0x2a4/0xe40
[   88.183585][ T5053]        ksys_write+0x1f0/0x250
[   88.188456][ T5053]        do_syscall_64+0x38/0xb0
[   88.193414][ T5053]        entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   88.199852][ T5053] 
[   88.199852][ T5053] other info that might help us debug this:
[   88.199852][ T5053] 
[   88.210082][ T5053] Chain exists of:
[   88.210082][ T5053]   (work_completion)(&hdev->tx_work) --> rfkill_global_mutex --> &hdev->req_lock
[   88.210082][ T5053] 
[   88.225049][ T5053]  Possible unsafe locking scenario:
[   88.225049][ T5053] 
[   88.232663][ T5053]        CPU0                    CPU1
[   88.238025][ T5053]        ----                    ----
[   88.243394][ T5053]   lock(&hdev->req_lock);
[   88.247818][ T5053]                                lock(rfkill_global_mutex);
[   88.255113][ T5053]                                lock(&hdev->req_lock);
[   88.262321][ T5053]   lock((work_completion)(&hdev->tx_work));
[   88.268326][ T5053] 
[   88.268326][ T5053]  *** DEADLOCK ***
[   88.268326][ T5053] 
[   88.276467][ T5053] 2 locks held by syz-executor126/5053:
[   88.282009][ T5053]  #0: ffffffff8ea842a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x16e/0x570
[   88.292138][ T5053]  #1: ffff88807df1d0b8 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close+0x26/0x90
[   88.301745][ T5053] 
[   88.301745][ T5053] stack backtrace:
[   88.307621][ T5053] CPU: 1 PID: 5053 Comm: syz-executor126 Not tainted 6.6.0-rc2-next-20230921-syzkaller #0
[   88.317689][ T5053] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
[   88.328002][ T5053] Call Trace:
[   88.331297][ T5053]  <TASK>
[   88.334416][ T5053]  dump_stack_lvl+0xd9/0x1b0
[   88.339187][ T5053]  check_noncircular+0x311/0x3f0
[   88.344336][ T5053]  ? print_circular_bug+0x750/0x750
[   88.349560][ T5053]  ? is_bpf_text_address+0x94/0x1a0
[   88.354786][ T5053]  ? unwind_get_return_address+0x45/0xe0
[   88.360452][ T5053]  ? arch_stack_walk+0x112/0x170
[   88.365404][ T5053]  __lock_acquire+0x2e3d/0x5de0
[   88.370318][ T5053]  ? lockdep_hardirqs_on_prepare+0x410/0x410
[   88.376492][ T5053]  ? save_trace+0x4e/0xb30
[   88.380919][ T5053]  ? _find_first_zero_bit+0x94/0xb0
[   88.386140][ T5053]  lock_acquire+0x1ae/0x510
[   88.390661][ T5053]  ? __flush_work+0xfa/0xa10
[   88.395266][ T5053]  ? lock_sync+0x190/0x190
[   88.399712][ T5053]  ? __flush_work+0xfa/0xa10
[   88.404319][ T5053]  __flush_work+0x103/0xa10
[   88.408835][ T5053]  ? __flush_work+0xfa/0xa10
[   88.413443][ T5053]  ? cancel_delayed_work+0x20/0x20
[   88.418589][ T5053]  hci_dev_close_sync+0x22d/0x1160
[   88.423803][ T5053]  ? find_held_lock+0x2d/0x110
[   88.428588][ T5053]  ? hci_reset_sync+0x50/0x50
[   88.433285][ T5053]  ? reacquire_held_locks+0x4b0/0x4b0
[   88.438682][ T5053]  hci_dev_do_close+0x2e/0x90
[   88.443398][ T5053]  hci_rfkill_set_block+0x1b9/0x200
[   88.448627][ T5053]  ? lockdep_hardirqs_on+0x7d/0x100
[   88.453872][ T5053]  ? hci_power_on+0x670/0x670
[   88.458573][ T5053]  rfkill_set_block+0x200/0x550
[   88.463454][ T5053]  rfkill_fop_write+0x2d4/0x570
[   88.468424][ T5053]  ? rfkill_register+0xb30/0xb30
[   88.473411][ T5053]  ? bpf_lsm_inode_removexattr+0x10/0x10
[   88.479081][ T5053]  ? security_file_permission+0x94/0x100
[   88.484841][ T5053]  vfs_write+0x2a4/0xe40
[   88.489209][ T5053]  ? rfkill_register+0xb30/0xb30
[   88.494264][ T5053]  ? kernel_write+0x6c0/0x6c0
[   88.499004][ T5053]  ? ptrace_stop.part.0+0x61a/0x900
[   88.504315][ T5053]  ? find_held_lock+0x2d/0x110
[   88.509189][ T5053]  ? ptrace_notify+0xf4/0x130
[   88.513966][ T5053]  ? reacquire_held_locks+0x4b0/0x4b0
[   88.519372][ T5053]  ? __fget_light+0x1fc/0x260
[   88.524262][ T5053]  ksys_write+0x1f0/0x250
[   88.528605][ T5053]  ? __ia32_sys_read+0xb0/0xb0
[   88.533388][ T5053]  ? lockdep_hardirqs_on+0x7d/0x100
[   88.539322][ T5053]  ? _raw_spin_unlock_irq+0x2e/0x50
[   88.544752][ T5053]  ? ptrace_notify+0xf4/0x130
[   88.549789][ T5053]  do_syscall_64+0x38/0xb0
[   88.554303][ T5053]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   88.560213][ T5053] RIP: 0033:0x7f8297388479
[   88.564803][ T5053] Code: 48 83 c4 28 c3 e8 e7 18 00 00 0f 1f 80 00 00 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 b0 ff ff ff f7 d8 64 89 01 48
[   88.584676][ T5053] RSP: 002b:00007ffc9ef0d068 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   88.593105][ T5053] RAX: ffffffffffffffda RBX: 00007f82973df043 RCX: 00007f8297388479
[   88.601077][ T5053] RDX: 0000000000000008 RSI: 0000000020000080 RDI: 0000000000000003
[   88.609048][ T5053] RBP: 00007ffc9ef0d0b0 R08: 000000ff00ffa650 R09: 000000ff00ffa650
[   88.617217][ T5053] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc9ef0d098
[pid  5053] write(3, "\x00\x00\x00\x00\x00\x03\x01\x00", 8) = 8
[pid  5053] exit_group(1)               = ?
[pid  5053] +++ exited with 1 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5053, si_uid=0, si_status=1, si_utime=0, si_stime=13 /* 0.13 s */} ---
exit_group(0)                           = ?
+++ exited with 0 +++
[   88.625190][ T5053] R13: 00007f829740c5b0 R14: 0000000000000000 R15: 0000000000000001
[   88.633466][ T5053]  </TASK>