./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3666027125

<...>
Warning: Permanently added '10.128.10.14' (ED25519) to the list of known hosts.
execve("./syz-executor3666027125", ["./syz-executor3666027125"], 0x7ffdb09661f0 /* 10 vars */) = 0
brk(NULL)                               = 0x555557316000
brk(0x555557316d40)                     = 0x555557316d40
arch_prctl(ARCH_SET_FS, 0x5555573163c0) = 0
set_tid_address(0x555557316690)         = 5044
set_robust_list(0x5555573166a0, 24)     = 0
rseq(0x555557316ce0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor3666027125", 4096) = 28
getrandom("\x38\x68\x2f\x09\xc7\x38\x6d\xc0", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x555557316d40
brk(0x555557337d40)                     = 0x555557337d40
brk(0x555557338000)                     = 0x555557338000
mprotect(0x7f3d45200000, 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, child_tidptr=0x555557316690) = 5045
./strace-static-x86_64: Process 5045 attached
[pid  5045] set_robust_list(0x5555573166a0, 24) = 0
[pid  5045] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid  5045] socket(AF_BLUETOOTH, SOCK_RAW, BTPROTO_HCI) = 3
[pid  5045] openat(AT_FDCWD, "/dev/vhci", O_RDWR) = 4
[pid  5045] dup2(4, 202)                = 202
[pid  5045] close(4)                    = 0
[pid  5045] write(202, "\xff\x00", 2)   = 2
[pid  5045] read(202, "\xff\x00\x00\x00", 4) = 4
[pid  5045] rt_sigaction(SIGRT_1, {sa_handler=0x7f3d451a1d40, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3d451933c0}, NULL, 8) = 0
[pid  5045] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5045] mmap(NULL, 8392704, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3d4493c000
[pid  5045] mprotect(0x7f3d4493d000, 8388608, PROT_READ|PROT_WRITE) = 0
[pid  5045] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5045] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3d4513c990, parent_tid=0x7f3d4513c990, exit_signal=0, stack=0x7f3d4493c000, stack_size=0x800300, tls=0x7f3d4513c6c0} => {parent_tid=[2]}, 88) = 2
./strace-static-x86_64: Process 5046 attached
[pid  5046] rseq(0x7f3d4513cfe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5045] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5046] <... rseq resumed>)         = 0
[pid  5045] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5045] ioctl(3, HCIDEVUP <unfinished ...>
[pid  5046] set_robust_list(0x7f3d4513c9a0, 24) = 0
[pid  5046] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5046] read(202, "\x01\x03\x0c\x00", 1024) = 4
[pid  5046] 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  5046] read(202, "\x01\x03\x10\x00", 1024) = 4
[pid  5046] 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  5046] read(202, "\x01\x01\x10\x00", 1024) = 4
[pid  5046] 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  5046] read(202, "\x01\x09\x10\x00", 1024) = 4
[pid  5046] 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  5046] read(202, "\x01\x05\x10\x00", 1024) = 4
[pid  5046] 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  5046] read(202, "\x01\x23\x0c\x00", 1024) = 4
[pid  5046] 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  5046] read(202, "\x01\x14\x0c\x00", 1024) = 4
[pid  5046] 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  5046] read(202, "\x01\x25\x0c\x00", 1024) = 4
[pid  5046] 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  5046] read(202, "\x01\x38\x0c\x00", 1024) = 4
[pid  5046] 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
[   83.700183][ T5047] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1
[   83.710278][ T5047] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9
[   83.719212][ T5047] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9
[   83.729767][ T5047] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4
[   83.738610][ T5047] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3
[pid  5046] read(202, "\x01\x39\x0c\x00", 1024) = 4
[pid  5046] 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  5046] read(202, "\x01\x16\x0c\x02\x00\x7d", 1024) = 6
[pid  5046] 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  5046] read(202,  <unfinished ...>
[pid  5045] <... ioctl resumed>, 0)     = -1 EALREADY (Operation already in progress)
[pid  5045] ioctl(3, HCISETSCAN <unfinished ...>
[pid  5046] <... read resumed>"\x01\x1a\x0c\x01\x02", 1024) = 5
[pid  5046] 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  5045] <... ioctl resumed>, 0x7ffc902cd67c) = 0
[pid  5046] rt_sigprocmask(SIG_BLOCK, ~[RT_1], NULL, 8) = 0
[pid  5046] madvise(0x7f3d4493c000, 8372224, MADV_DONTNEED) = 0
[pid  5046] exit(0 <unfinished ...>
[pid  5045] 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  5046] <... exit resumed>)         = ?
[pid  5045] <... writev resumed>)       = 13
[pid  5046] +++ exited with 0 +++
[pid  5045] 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  5045] 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  5045] 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  5045] close(3)                    = 0
[pid  5045] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5045] setsid()                    = 1
[pid  5045] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  5045] dup2(3, 201)                = 201
[pid  5045] close(3)                    = 0
[pid  5045] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid  5045] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid  5045] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid  5045] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid  5045] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid  5045] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid  5045] unshare(CLONE_NEWNS)        = 0
[pid  5045] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[pid  5045] unshare(CLONE_NEWIPC)       = 0
[pid  5045] unshare(CLONE_NEWCGROUP)    = 0
[pid  5045] unshare(CLONE_NEWUTS)       = 0
[pid  5045] unshare(CLONE_SYSVSEM)      = 0
[pid  5045] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3
[pid  5045] write(3, "16777216", 8)     = 8
[pid  5045] close(3)                    = 0
[   83.746614][ T5047] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2
[pid  5045] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3
[pid  5045] write(3, "536870912", 9)    = 9
[pid  5045] close(3)                    = 0
[pid  5045] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3
[pid  5045] write(3, "1024", 4)         = 4
[pid  5045] close(3)                    = 0
[pid  5045] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3
[pid  5045] write(3, "8192", 4)         = 4
[pid  5045] close(3)                    = 0
[pid  5045] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3
[pid  5045] write(3, "1024", 4)         = 4
[pid  5045] close(3)                    = 0
[pid  5045] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3
[pid  5045] write(3, "1024", 4)         = 4
[pid  5045] close(3)                    = 0
[pid  5045] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3
[pid  5045] write(3, "1024 1048576 500 1024", 21) = 21
[pid  5045] close(3)                    = 0
[pid  5045] getpid()                    = 1
[pid  5045] 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  5045] 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  5045] unshare(CLONE_NEWNET)       = 0
[pid  5045] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid  5045] write(3, "0 65535", 7)      = 7
[pid  5045] close(3)                    = 0
[pid  5045] mkdir("/dev/binderfs", 0777) = 0
[pid  5045] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0
[pid  5045] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5051 attached
, child_tidptr=0x555557316690) = 3
[pid  5051] set_robust_list(0x5555573166a0, 24) = 0
[pid  5051] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5051] setpgid(0, 0)               = 0
[pid  5051] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5051] write(3, "1000", 4)         = 4
[pid  5051] close(3)                    = 0
[pid  5051] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  5051] setns(201, 0)               = 0
[pid  5051] socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM) = 4
[pid  5051] setns(3, 0)                 = 0
[pid  5051] close(3)                    = 0
[   85.805478][ T4445] Bluetooth: hci0: command 0x0409 tx timeout
[   87.894723][ T4445] Bluetooth: hci0: command 0x041b tx timeout
[pid  5051] connect(4, {sa_family=AF_BLUETOOTH, rc_bdaddr=ff:ff:ff:ff:ff:ff, rc_channel=4}, 10 <unfinished ...>
[pid  5045] kill(-3, SIGKILL)           = 0
[pid  5051] <... connect resumed>)      = ?
[pid  5051] +++ killed by SIGKILL +++
[pid  5045] kill(3, SIGKILL)            = 0
[pid  5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=3, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} ---
[pid  5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5052 attached
, child_tidptr=0x555557316690) = 4
[pid  5052] set_robust_list(0x5555573166a0, 24) = 0
[pid  5052] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5052] setpgid(0, 0)               = 0
[pid  5052] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5052] write(3, "1000", 4)         = 4
[pid  5052] close(3)                    = 0
[pid  5052] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  5052] setns(201, 0)               = 0
[pid  5052] socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM) = 4
[pid  5052] setns(3, 0)                 = 0
[pid  5052] close(3)                    = 0
[   89.964721][ T4445] Bluetooth: hci0: command 0x040f tx timeout
[   92.054727][ T4445] Bluetooth: hci0: command 0x0419 tx timeout
[   92.292279][    T8] cfg80211: failed to load regulatory.db
[pid  5052] connect(4, {sa_family=AF_BLUETOOTH, rc_bdaddr=ff:ff:ff:ff:ff:ff, rc_channel=4}, 10 <unfinished ...>
[pid  5045] kill(-4, SIGKILL)           = 0
[pid  5052] <... connect resumed>)      = ?
[pid  5052] +++ killed by SIGKILL +++
[pid  5045] kill(4, SIGKILL)            = 0
[pid  5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=4, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} ---
[pid  5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5054 attached
 <unfinished ...>
[pid  5054] set_robust_list(0x5555573166a0, 24) = 0
[pid  5054] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5054] setpgid(0, 0 <unfinished ...>
[pid  5045] <... clone resumed>, child_tidptr=0x555557316690) = 5
[pid  5054] <... setpgid resumed>)      = 0
[pid  5054] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5054] write(3, "1000", 4)         = 4
[pid  5054] close(3)                    = 0
[pid  5054] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  5054] setns(201, 0)               = 0
[pid  5054] socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM) = 4
[pid  5054] setns(3, 0)                 = 0
[pid  5054] close(3)                    = 0
[   94.124758][ T4445] Bluetooth: hci0: command 0x0405 tx timeout
[pid  5054] connect(4, {sa_family=AF_BLUETOOTH, rc_bdaddr=ff:ff:ff:ff:ff:ff, rc_channel=4}, 10 <unfinished ...>
[pid  5045] kill(-5, SIGKILL <unfinished ...>
[pid  5054] <... connect resumed>)      = ?
[pid  5045] <... kill resumed>)         = 0
[pid  5045] kill(5, SIGKILL)            = 0
[pid  5054] +++ killed by SIGKILL +++
[pid  5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} ---
[pid  5045] restart_syscall(<... resuming interrupted kill ...>) = 0
[pid  5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555557316690) = 6
./strace-static-x86_64: Process 5057 attached
[pid  5057] set_robust_list(0x5555573166a0, 24) = 0
[pid  5057] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5057] setpgid(0, 0)               = 0
[pid  5057] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5057] write(3, "1000", 4)         = 4
[pid  5057] close(3)                    = 0
[pid  5057] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  5057] setns(201, 0)               = 0
[pid  5057] socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM) = 4
[pid  5057] setns(3, 0)                 = 0
[pid  5057] close(3)                    = 0
[pid  5057] connect(4, {sa_family=AF_BLUETOOTH, rc_bdaddr=ff:ff:ff:ff:ff:ff, rc_channel=4}, 10 <unfinished ...>
[pid  5045] kill(-6, SIGKILL)           = 0
[pid  5057] <... connect resumed>)      = ?
[pid  5045] kill(6, SIGKILL)            = 0
[pid  5057] +++ killed by SIGKILL +++
[pid  5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=6, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} ---
[pid  5045] restart_syscall(<... resuming interrupted kill ...>) = 0
[pid  5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555557316690) = 7
./strace-static-x86_64: Process 5059 attached
[pid  5059] set_robust_list(0x5555573166a0, 24) = 0
[pid  5059] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5059] setpgid(0, 0)               = 0
[pid  5059] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5059] write(3, "1000", 4)         = 4
[pid  5059] close(3)                    = 0
[pid  5059] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  5059] setns(201, 0)               = 0
[pid  5059] socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM) = 4
[pid  5059] setns(3, 0)                 = 0
[pid  5059] close(3)                    = 0
[pid  5059] connect(4, {sa_family=AF_BLUETOOTH, rc_bdaddr=ff:ff:ff:ff:ff:ff, rc_channel=4}, 10 <unfinished ...>
[pid  5045] kill(-7, SIGKILL <unfinished ...>
[pid  5059] <... connect resumed>)      = ?
[pid  5045] <... kill resumed>)         = 0
[pid  5045] kill(7, SIGKILL <unfinished ...>
[pid  5059] +++ killed by SIGKILL +++
[pid  5045] <... kill resumed>)         = 0
[pid  5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=7, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} ---
[pid  5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5062 attached
, child_tidptr=0x555557316690) = 8
[pid  5062] set_robust_list(0x5555573166a0, 24) = 0
[pid  5062] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5062] setpgid(0, 0)               = 0
[pid  5062] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5062] write(3, "1000", 4)         = 4
[pid  5062] close(3)                    = 0
[pid  5062] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  5062] setns(201, 0)               = 0
[pid  5062] socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM) = 4
[pid  5062] setns(3, 0)                 = 0
[pid  5062] close(3)                    = 0
[pid  5062] connect(4, {sa_family=AF_BLUETOOTH, rc_bdaddr=ff:ff:ff:ff:ff:ff, rc_channel=4}, 10 <unfinished ...>
[pid  5045] kill(-8, SIGKILL <unfinished ...>
[pid  5062] <... connect resumed>)      = ?
[pid  5045] <... kill resumed>)         = 0
[pid  5045] kill(8, SIGKILL)            = 0
[pid  5062] +++ killed by SIGKILL +++
[pid  5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=8, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} ---
[pid  5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5064 attached
, child_tidptr=0x555557316690) = 9
[pid  5064] set_robust_list(0x5555573166a0, 24) = 0
[pid  5064] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5064] setpgid(0, 0)               = 0
[pid  5064] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5064] write(3, "1000", 4)         = 4
[pid  5064] close(3)                    = 0
[pid  5064] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  5064] setns(201, 0)               = 0
[pid  5064] socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM) = 4
[pid  5064] setns(3, 0)                 = 0
[pid  5064] close(3)                    = 0
[pid  5064] connect(4, {sa_family=AF_BLUETOOTH, rc_bdaddr=ff:ff:ff:ff:ff:ff, rc_channel=4}, 10 <unfinished ...>
[pid  5045] kill(-9, SIGKILL <unfinished ...>
[pid  5064] <... connect resumed>)      = ?
[pid  5045] <... kill resumed>)         = 0
[pid  5045] kill(9, SIGKILL)            = 0
[pid  5064] +++ killed by SIGKILL +++
[pid  5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=9, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} ---
[pid  5045] restart_syscall(<... resuming interrupted kill ...>) = 0
[pid  5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5073 attached
, child_tidptr=0x555557316690) = 10
[pid  5073] set_robust_list(0x5555573166a0, 24) = 0
[pid  5073] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5073] setpgid(0, 0)               = 0
[pid  5073] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5073] write(3, "1000", 4)         = 4
[pid  5073] close(3)                    = 0
[pid  5073] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  5073] setns(201, 0)               = 0
[pid  5073] socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM) = 4
[pid  5073] setns(3, 0)                 = 0
[pid  5073] close(3)                    = 0
[pid  5073] connect(4, {sa_family=AF_BLUETOOTH, rc_bdaddr=ff:ff:ff:ff:ff:ff, rc_channel=4}, 10 <unfinished ...>
[pid  5045] kill(-10, SIGKILL)          = 0
[pid  5073] <... connect resumed>)      = ?
[pid  5045] kill(10, SIGKILL)           = 0
[pid  5073] +++ killed by SIGKILL +++
[pid  5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=10, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} ---
[pid  5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5075 attached
, child_tidptr=0x555557316690) = 11
[pid  5075] set_robust_list(0x5555573166a0, 24) = 0
[pid  5075] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5075] setpgid(0, 0)               = 0
[pid  5075] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5075] write(3, "1000", 4)         = 4
[pid  5075] close(3)                    = 0
[pid  5075] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  5075] setns(201, 0)               = 0
[pid  5075] socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM) = 4
[pid  5075] setns(3, 0)                 = 0
[pid  5075] close(3)                    = 0
[pid  5075] connect(4, {sa_family=AF_BLUETOOTH, rc_bdaddr=ff:ff:ff:ff:ff:ff, rc_channel=4}, 10) = -1 ECONNREFUSED (Connection refused)
[pid  5075] getsockopt(-1, SOL_IPV6, IPV6_FLOWLABEL_MGR, 0x20000100, NULL) = -1 EBADF (Bad file descriptor)
[pid  5075] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  5075] setns(201, 0)               = 0
[pid  5075] socket(AF_BLUETOOTH, SOCK_RAW, BTPROTO_RFCOMM) = 5
[  124.306589][ T5075] 
[  124.308935][ T5075] ======================================================
[  124.315959][ T5075] WARNING: possible circular locking dependency detected
[  124.322979][ T5075] 6.6.0-rc5-syzkaller-01291-g90de47f020db #0 Not tainted
[  124.329990][ T5075] ------------------------------------------------------
[  124.337215][ T5075] syz-executor366/5075 is trying to acquire lock:
[  124.343642][ T5075] ffffffff8e88dbe8 (rfcomm_mutex){+.+.}-{3:3}, at: rfcomm_dlc_exists+0x5b/0x190
[  124.352802][ T5075] 
[  124.352802][ T5075] but task is already holding lock:
[  124.360332][ T5075] ffffffff8e892b68 (rfcomm_ioctl_mutex){+.+.}-{3:3}, at: rfcomm_dev_ioctl+0x8b9/0x1c50
[  124.370138][ T5075] 
[  124.370138][ T5075] which lock already depends on the new lock.
[  124.370138][ T5075] 
[  124.380536][ T5075] 
[  124.380536][ T5075] the existing dependency chain (in reverse order) is:
[  124.390058][ T5075] 
[  124.390058][ T5075] -> #3 (rfcomm_ioctl_mutex){+.+.}-{3:3}:
[  124.397954][ T5075]        __mutex_lock+0x181/0x1340
[  124.403068][ T5075]        rfcomm_dev_ioctl+0x8b9/0x1c50
[  124.408532][ T5075]        rfcomm_sock_ioctl+0xb0/0xe0
[  124.413840][ T5075]        sock_do_ioctl+0x113/0x270
[  124.418955][ T5075]        sock_ioctl+0x229/0x6b0
[  124.423823][ T5075]        __x64_sys_ioctl+0x18f/0x210
[  124.429144][ T5075]        do_syscall_64+0x38/0xb0
[  124.434167][ T5075]        entry_SYSCALL_64_after_hwframe+0x63/0xcd
[  124.441825][ T5075] 
[  124.441825][ T5075] -> #2 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}:
[  124.451199][ T5075]        lock_sock_nested+0x3a/0xf0
[  124.456398][ T5075]        rfcomm_sk_state_change+0x6d/0x3a0
[  124.462570][ T5075]        __rfcomm_dlc_close+0x285/0x720
[  124.468212][ T5075]        rfcomm_dlc_close+0x1e7/0x240
[  124.473603][ T5075]        __rfcomm_sock_close+0xa7/0x230
[  124.479152][ T5075]        rfcomm_sock_shutdown+0xd1/0x230
[  124.485737][ T5075]        rfcomm_sock_release+0x5d/0x140
[  124.491369][ T5075]        __sock_release+0xae/0x260
[  124.496502][ T5075]        sock_close+0x1c/0x20
[  124.501704][ T5075]        __fput+0x3f7/0xa70
[  124.506201][ T5075]        task_work_run+0x14d/0x240
[  124.511325][ T5075]        do_exit+0xa92/0x2a20
[  124.516018][ T5075]        do_group_exit+0xd4/0x2a0
[  124.521158][ T5075]        get_signal+0x23ba/0x2790
[  124.526174][ T5075]        arch_do_signal_or_restart+0x90/0x7f0
[  124.532376][ T5075]        exit_to_user_mode_prepare+0x11f/0x240
[  124.538742][ T5075]        syscall_exit_to_user_mode+0x1d/0x60
[  124.545165][ T5075]        do_syscall_64+0x44/0xb0
[  124.550137][ T5075]        entry_SYSCALL_64_after_hwframe+0x63/0xcd
[  124.556635][ T5075] 
[  124.556635][ T5075] -> #1 (&d->lock){+.+.}-{3:3}:
[  124.563904][ T5075]        __mutex_lock+0x181/0x1340
[  124.569026][ T5075]        __rfcomm_dlc_close+0x231/0x720
[  124.574662][ T5075]        rfcomm_dlc_close+0x1e7/0x240
[  124.580039][ T5075]        __rfcomm_sock_close+0xa7/0x230
[  124.585950][ T5075]        rfcomm_sock_shutdown+0xd1/0x230
[  124.591599][ T5075]        rfcomm_sock_release+0x5d/0x140
[  124.597159][ T5075]        __sock_release+0xae/0x260
[  124.602391][ T5075]        sock_close+0x1c/0x20
[  124.607064][ T5075]        __fput+0x3f7/0xa70
[  124.611563][ T5075]        task_work_run+0x14d/0x240
[  124.616677][ T5075]        do_exit+0xa92/0x2a20
[  124.621441][ T5075]        do_group_exit+0xd4/0x2a0
[  124.626467][ T5075]        get_signal+0x23ba/0x2790
[  124.631484][ T5075]        arch_do_signal_or_restart+0x90/0x7f0
[  124.637549][ T5075]        exit_to_user_mode_prepare+0x11f/0x240
[  124.643866][ T5075]        syscall_exit_to_user_mode+0x1d/0x60
[  124.649934][ T5075]        do_syscall_64+0x44/0xb0
[  124.654869][ T5075]        entry_SYSCALL_64_after_hwframe+0x63/0xcd
[  124.661283][ T5075] 
[  124.661283][ T5075] -> #0 (rfcomm_mutex){+.+.}-{3:3}:
[  124.668686][ T5075]        __lock_acquire+0x2e3d/0x5de0
[  124.674056][ T5075]        lock_acquire+0x1ae/0x510
[  124.679080][ T5075]        __mutex_lock+0x181/0x1340
[  124.684188][ T5075]        rfcomm_dlc_exists+0x5b/0x190
[  124.689561][ T5075]        rfcomm_dev_ioctl+0x999/0x1c50
[  124.695123][ T5075]        rfcomm_sock_ioctl+0xb0/0xe0
[  124.700407][ T5075]        sock_do_ioctl+0x113/0x270
[  124.705608][ T5075]        sock_ioctl+0x229/0x6b0
[  124.710468][ T5075]        __x64_sys_ioctl+0x18f/0x210
[  124.715745][ T5075]        do_syscall_64+0x38/0xb0
[  124.720780][ T5075]        entry_SYSCALL_64_after_hwframe+0x63/0xcd
[  124.727200][ T5075] 
[  124.727200][ T5075] other info that might help us debug this:
[  124.727200][ T5075] 
[  124.737429][ T5075] Chain exists of:
[  124.737429][ T5075]   rfcomm_mutex --> sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM --> rfcomm_ioctl_mutex
[  124.737429][ T5075] 
[  124.752889][ T5075]  Possible unsafe locking scenario:
[  124.752889][ T5075] 
[  124.760334][ T5075]        CPU0                    CPU1
[  124.765713][ T5075]        ----                    ----
[  124.771330][ T5075]   lock(rfcomm_ioctl_mutex);
[  124.776094][ T5075]                                lock(sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM);
[  124.784878][ T5075]                                lock(rfcomm_ioctl_mutex);
[  124.792079][ T5075]   lock(rfcomm_mutex);
[  124.796223][ T5075] 
[  124.796223][ T5075]  *** DEADLOCK ***
[  124.796223][ T5075] 
[  124.804353][ T5075] 2 locks held by syz-executor366/5075:
[  124.809906][ T5075]  #0: ffff88801468c130 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: rfcomm_sock_ioctl+0xa3/0xe0
[  124.821909][ T5075]  #1: ffffffff8e892b68 (rfcomm_ioctl_mutex){+.+.}-{3:3}, at: rfcomm_dev_ioctl+0x8b9/0x1c50
[  124.831999][ T5075] 
[  124.831999][ T5075] stack backtrace:
[  124.837874][ T5075] CPU: 0 PID: 5075 Comm: syz-executor366 Not tainted 6.6.0-rc5-syzkaller-01291-g90de47f020db #0
[  124.848369][ T5075] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
[  124.858542][ T5075] Call Trace:
[  124.861837][ T5075]  <TASK>
[  124.864786][ T5075]  dump_stack_lvl+0xd9/0x1b0
[  124.869440][ T5075]  check_noncircular+0x311/0x3f0
[  124.874388][ T5075]  ? print_circular_bug+0x750/0x750
[  124.879592][ T5075]  ? is_bpf_text_address+0x94/0x1a0
[  124.884795][ T5075]  ? kernel_text_address+0x85/0xf0
[  124.889960][ T5075]  ? arch_stack_walk+0x112/0x170
[  124.894894][ T5075]  __lock_acquire+0x2e3d/0x5de0
[  124.899756][ T5075]  ? lockdep_hardirqs_on_prepare+0x410/0x410
[  124.905737][ T5075]  ? save_trace+0x4e/0xb30
[  124.910150][ T5075]  ? _find_first_zero_bit+0x94/0xb0
[  124.915347][ T5075]  ? add_lock_to_list+0x17d/0x380
[  124.920374][ T5075]  lock_acquire+0x1ae/0x510
[  124.924877][ T5075]  ? rfcomm_dlc_exists+0x5b/0x190
[  124.929902][ T5075]  ? lock_sync+0x190/0x190
[  124.934320][ T5075]  ? lockdep_hardirqs_on_prepare+0x410/0x410
[  124.940298][ T5075]  ? preempt_count_sub+0x150/0x150
[  124.945419][ T5075]  __mutex_lock+0x181/0x1340
[  124.950096][ T5075]  ? rfcomm_dlc_exists+0x5b/0x190
[  124.955117][ T5075]  ? rfcomm_dlc_exists+0x5b/0x190
[  124.960221][ T5075]  ? find_held_lock+0x2d/0x110
[  124.965414][ T5075]  ? mutex_lock_io_nested+0x11a0/0x11a0
[  124.971053][ T5075]  ? __might_fault+0x13f/0x1a0
[  124.975917][ T5075]  ? reacquire_held_locks+0x4b0/0x4b0
[  124.981316][ T5075]  ? preempt_count_sub+0x150/0x150
[  124.986634][ T5075]  ? apparmor_capable+0x1da/0x4e0
[  124.992210][ T5075]  ? rfcomm_dlc_exists+0x5b/0x190
[  124.997509][ T5075]  rfcomm_dlc_exists+0x5b/0x190
[  125.002359][ T5075]  rfcomm_dev_ioctl+0x999/0x1c50
[  125.007295][ T5075]  ? rfcomm_dev_state_change+0x170/0x170
[  125.012956][ T5075]  ? reacquire_held_locks+0x4b0/0x4b0
[  125.018341][ T5075]  ? mark_held_locks+0x9f/0xe0
[  125.023139][ T5075]  ? __local_bh_enable_ip+0xa4/0x120
[  125.028430][ T5075]  rfcomm_sock_ioctl+0xb0/0xe0
[  125.033305][ T5075]  sock_do_ioctl+0x113/0x270
[  125.037925][ T5075]  ? get_user_ifreq+0x250/0x250
[  125.042790][ T5075]  ? do_vfs_ioctl+0x379/0x1920
[  125.047555][ T5075]  ? vfs_fileattr_set+0xbf0/0xbf0
[  125.052666][ T5075]  sock_ioctl+0x229/0x6b0
[  125.057111][ T5075]  ? br_ioctl_call+0xb0/0xb0
[  125.061757][ T5075]  ? bpf_lsm_file_ioctl+0x9/0x10
[  125.066690][ T5075]  ? br_ioctl_call+0xb0/0xb0
[  125.071279][ T5075]  __x64_sys_ioctl+0x18f/0x210
[  125.076034][ T5075]  do_syscall_64+0x38/0xb0
[  125.080446][ T5075]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[  125.086443][ T5075] RIP: 0033:0x7f3d4517bd49
[  125.090855][ T5075] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 19 00 00 90 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
[  125.111176][ T5075] RSP: 002b:00007ffc902cd648 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  125.119758][ T5075] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f3d4517bd49
[  125.127900][ T5075] RDX: 0000000020000100 RSI: 00000000400452c8 RDI: 0000000000000005
[  125.135873][ T5075] RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000555500000000
[  125.143938][ T5075] R10: 0000555500000000 R11: 0000000000000246 R12: 00007ffc902cd690
[  125.151896][ T5075] R13: 00007ffc902cd6a0 R14: 000000000001d068 R15: 00007ffc902cd660
[pid  5075] setns(3, 0)                 = 0
[pid  5075] close(3)                    = 0
[pid  5075] ioctl(5, RFCOMMCREATEDEV, 0x20000100) = 0
[pid  5075] close(3)                    = -1 EBADF (Bad file descriptor)
[pid  5075] close(4)                    = 0
[pid  5075] close(5)                    = 0
[pid  5075] close(6)                    = -1 EBADF (Bad file descriptor)
[pid  5075] close(7)                    = -1 EBADF (Bad file descriptor)
[pid  5075] close(8)                    = -1 EBADF (Bad file descriptor)
[pid  5075] close(9)                    = -1 EBADF (Bad file descriptor)
[pid  5075] close(10)                   = -1 EBADF (Bad file descriptor)
[pid  5075] close(11)                   = -1 EBADF (Bad file descriptor)
[pid  5075] close(12)                   = -1 EBADF (Bad file descriptor)
[pid  5075] close(13)                   = -1 EBADF (Bad file descriptor)
[pid  5075] close(14)                   = -1 EBADF (Bad file descriptor)
[pid  5075] close(15)                   = -1 EBADF (Bad file descriptor)
[pid  5075] close(16)                   = -1 EBADF (Bad file descriptor)
[pid  5075] close(17)                   = -1 EBADF (Bad file descriptor)
[pid  5075] close(18)                   = -1 EBADF (Bad file descriptor)
[pid  5075] close(19)                   = -1 EBADF (Bad file descriptor)
[pid  5075] close(20)                   = -1 EBADF (Bad file descriptor)
[pid  5075] close(21)                   = -1 EBADF (Bad file descriptor)
[pid  5075] close(22)                   = -1 EBADF (Bad file descriptor)
[pid  5075] close(23)                   = -1 EBADF (Bad file descriptor)
[pid  5075] close(24)                   = -1 EBADF (Bad file descriptor)
[pid  5075] close(25)                   = -1 EBADF (Bad file descriptor)
[pid  5075] close(26)                   = -1 EBADF (Bad file descriptor)
[pid  5075] close(27)                   = -1 EBADF (Bad file descriptor)
[pid  5075] close(28)                   = -1 EBADF (Bad file descriptor)
[pid  5075] close(29)                   = -1 EBADF (Bad file descriptor)
[pid  5075] exit_group(0)               = ?
[pid  5075] +++ exited with 0 +++
[pid  5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
[pid  5045] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555557316690) = 12
./strace-static-x86_64: Process 5077 attached
[pid  5077] set_robust_list(0x5555573166a0, 24) = 0
[pid  5077] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5077] setpgid(0, 0)               = 0
[pid  5077] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5077] write(3, "1000", 4)         = 4
[pid  5077] close(3)                    = 0
[pid  5077] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  5077] setns(201, 0)               = 0
[pid  5077] socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM) = 4
[pid  5077] setns(3, 0)                 = 0
[pid  5077] close(3)                    = 0
[  125.159953][ T5075]  </TASK>
[  127.244716][ T4445] Bluetooth: hci0: command 0x0405 tx timeout
[pid  5077] connect(4, {sa_family=AF_BLUETOOTH, rc_bdaddr=ff:ff:ff:ff:ff:ff, rc_channel=4}, 10 <unfinished ...>
[pid  5045] kill(-12, SIGKILL <unfinished ...>
[pid  5077] <... connect resumed>)      = ?
[pid  5045] <... kill resumed>)         = 0
[pid  5045] kill(12, SIGKILL)           = 0
[pid  5077] +++ killed by SIGKILL +++
[pid  5045] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=12, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} ---
[pid  5045] restart_syscall(<... resuming interrupted kill ...>) = 0
[pid  5045] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555557316690) = 13
./strace-static-x86_64: Process 5078 attached
[pid  5078] set_robust_list(0x5555573166a0, 24) = 0
[pid  5078] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5078] setpgid(0, 0)               = 0
[pid  5078] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5078] write(3, "1000", 4)         = 4
[pid  5078] close(3)                    = 0
[pid  5078] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  5078] setns(201, 0)               = 0
[pid  5078] socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM) = 4
[pid  5078] setns(3, 0)                 = 0
[pid  5078] close(3)                    = 0