./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1692793318

<...>
Warning: Permanently added '10.128.0.135' (ED25519) to the list of known hosts.
execve("./syz-executor1692793318", ["./syz-executor1692793318"], 0x7ffdb5934420 /* 10 vars */) = 0
brk(NULL)                               = 0x555585854000
brk(0x555585854d40)                     = 0x555585854d40
arch_prctl(ARCH_SET_FS, 0x5555858543c0) = 0
set_tid_address(0x555585854690)         = 5080
set_robust_list(0x5555858546a0, 24)     = 0
rseq(0x555585854ce0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor1692793318", 4096) = 28
getrandom("\x02\x03\x31\x7f\xed\x57\x78\xa2", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x555585854d40
brk(0x555585875d40)                     = 0x555585875d40
brk(0x555585876000)                     = 0x555585876000
mprotect(0x7f05fa708000, 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 5081 attached
, child_tidptr=0x555585854690) = 5081
[pid  5081] set_robust_list(0x5555858546a0, 24) = 0
[pid  5081] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid  5081] socket(AF_BLUETOOTH, SOCK_RAW, BTPROTO_HCI) = 3
[pid  5081] openat(AT_FDCWD, "/dev/vhci", O_RDWR) = 4
[pid  5081] dup2(4, 202)                = 202
[pid  5081] close(4)                    = 0
[pid  5081] write(202, "\xff\x00", 2)   = 2
[pid  5081] read(202, "\xff\x00\x00\x00", 4) = 4
[pid  5081] rt_sigaction(SIGRT_1, {sa_handler=0x7f05fa6a9d80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f05fa69b400}, NULL, 8) = 0
[pid  5081] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5081] mmap(NULL, 8392704, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f05f9e00000
[pid  5081] mprotect(0x7f05f9e01000, 8388608, PROT_READ|PROT_WRITE) = 0
[pid  5081] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5081] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f05fa600990, parent_tid=0x7f05fa600990, exit_signal=0, stack=0x7f05f9e00000, stack_size=0x800300, tls=0x7f05fa6006c0} => {parent_tid=[2]}, 88) = 2
./strace-static-x86_64: Process 5083 attached
[pid  5083] rseq(0x7f05fa600fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5081] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5083] <... rseq resumed>)         = 0
[pid  5081] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5083] set_robust_list(0x7f05fa6009a0, 24) = 0
[pid  5081] ioctl(3, HCIDEVUP <unfinished ...>
[pid  5083] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5083] read(202, "\x01\x03\x0c\x00", 1024) = 4
[pid  5083] 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  5083] read(202, "\x01\x03\x10\x00", 1024) = 4
[pid  5083] 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  5083] read(202, "\x01\x01\x10\x00", 1024) = 4
[pid  5083] 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  5083] read(202, "\x01\x09\x10\x00", 1024) = 4
[pid  5083] 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  5083] read(202, "\x01\x05\x10\x00", 1024) = 4
[pid  5083] 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
[  109.530993][ T5082] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1
[  109.551215][ T5082] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9
[  109.561202][ T5082] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9
[pid  5083] read(202, "\x01\x23\x0c\x00", 1024) = 4
[pid  5083] 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  5083] read(202, "\x01\x14\x0c\x00", 1024) = 4
[pid  5083] 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  5083] read(202, "\x01\x25\x0c\x00", 1024) = 4
[pid  5083] 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  5083] read(202, "\x01\x38\x0c\x00", 1024) = 4
[pid  5083] 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  5083] read(202, "\x01\x39\x0c\x00", 1024) = 4
[pid  5083] 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  5083] read(202, "\x01\x16\x0c\x02\x00\x7d", 1024) = 6
[pid  5083] 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  5083] read(202,  <unfinished ...>
[pid  5081] <... ioctl resumed>, 0)     = -1 EALREADY (Operation already in progress)
[pid  5081] ioctl(3, HCISETSCAN <unfinished ...>
[pid  5083] <... read resumed>"\x01\x1a\x0c\x01\x02", 1024) = 5
[pid  5083] 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  5083] rt_sigprocmask(SIG_BLOCK, ~[RT_1], NULL, 8) = 0
[pid  5083] madvise(0x7f05f9e00000, 8372224, MADV_DONTNEED) = 0
[pid  5081] <... ioctl resumed>, 0x7ffd1c32e0ac) = 0
[pid  5083] exit(0 <unfinished ...>
[pid  5081] 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  5083] <... exit resumed>)         = ?
[pid  5081] <... writev resumed>)       = 13
[pid  5083] +++ exited with 0 +++
[pid  5081] 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
[  109.613772][ T5082] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4
[  109.633457][ T5082] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3
[  109.641609][ T5082] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2
[pid  5081] 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  5081] 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  5081] close(3)                    = 0
[pid  5081] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5081] setsid()                    = 1
[pid  5081] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  5081] dup2(3, 201)                = 201
[pid  5081] close(3)                    = 0
[pid  5081] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid  5081] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid  5081] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid  5081] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid  5081] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid  5081] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid  5081] unshare(CLONE_NEWNS)        = 0
[pid  5081] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[pid  5081] unshare(CLONE_NEWIPC)       = 0
[pid  5081] unshare(CLONE_NEWCGROUP)    = 0
[pid  5081] unshare(CLONE_NEWUTS)       = 0
[pid  5081] unshare(CLONE_SYSVSEM)      = 0
[pid  5081] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3
[pid  5081] write(3, "16777216", 8)     = 8
[pid  5081] close(3)                    = 0
[pid  5081] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3
[pid  5081] write(3, "536870912", 9)    = 9
[pid  5081] close(3)                    = 0
[pid  5081] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3
[pid  5081] write(3, "1024", 4)         = 4
[pid  5081] close(3)                    = 0
[pid  5081] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3
[pid  5081] write(3, "8192", 4)         = 4
[pid  5081] close(3)                    = 0
[pid  5081] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3
[pid  5081] write(3, "1024", 4)         = 4
[pid  5081] close(3)                    = 0
[pid  5081] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3
[pid  5081] write(3, "1024", 4)         = 4
[pid  5081] close(3)                    = 0
[pid  5081] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3
[pid  5081] write(3, "1024 1048576 500 1024", 21) = 21
[pid  5081] close(3)                    = 0
[pid  5081] getpid()                    = 1
[pid  5081] 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  5081] 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  5081] unshare(CLONE_NEWNET)       = 0
[pid  5081] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid  5081] write(3, "0 65535", 7)      = 7
[pid  5081] close(3)                    = 0
[pid  5081] mkdir("/dev/binderfs", 0777) = 0
[pid  5081] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0
[pid  5081] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5085 attached
, child_tidptr=0x555585854690) = 3
[pid  5085] set_robust_list(0x5555858546a0, 24) = 0
[pid  5085] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5085] setpgid(0, 0)               = 0
[pid  5085] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5085] write(3, "1000", 4)         = 4
[pid  5085] close(3)                    = 0
[pid  5085] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  5085] setns(201, 0)               = 0
[pid  5085] socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM) = 4
[pid  5085] setns(3, 0)                 = 0
[pid  5085] close(3)                    = 0
[  111.729380][ T4465] Bluetooth: hci0: command tx timeout
[  113.809199][ T4465] Bluetooth: hci0: command 0x041b tx timeout
[pid  5085] connect(4, {sa_family=AF_BLUETOOTH, rc_bdaddr=ff:ff:ff:ff:ff:ff, rc_channel=2}, 10 <unfinished ...>
[pid  5081] kill(-3, SIGKILL <unfinished ...>
[pid  5085] <... connect resumed>)      = ?
[pid  5081] <... kill resumed>)         = 0
[pid  5081] kill(3, SIGKILL)            = 0
[pid  5085] +++ killed by SIGKILL +++
[pid  5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=3, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=1 /* 0.01 s */} ---
[pid  5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5087 attached
, child_tidptr=0x555585854690) = 4
[pid  5087] set_robust_list(0x5555858546a0, 24) = 0
[pid  5087] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5087] setpgid(0, 0)               = 0
[pid  5087] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5087] write(3, "1000", 4)         = 4
[pid  5087] close(3)                    = 0
[pid  5087] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  5087] setns(201, 0)               = 0
[pid  5087] socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM) = 4
[pid  5087] setns(3, 0)                 = 0
[pid  5087] close(3)                    = 0
[  115.878744][ T4465] Bluetooth: hci0: command 0x041b tx timeout
[  117.968787][ T4465] Bluetooth: hci0: command 0x041b tx timeout
[pid  5087] connect(4, {sa_family=AF_BLUETOOTH, rc_bdaddr=ff:ff:ff:ff:ff:ff, rc_channel=2}, 10 <unfinished ...>
[pid  5081] kill(-4, SIGKILL <unfinished ...>
[pid  5087] <... connect resumed>)      = ?
[pid  5081] <... kill resumed>)         = 0
[pid  5081] kill(4, SIGKILL)            = 0
[pid  5087] +++ killed by SIGKILL +++
[pid  5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=4, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=1 /* 0.01 s */} ---
[pid  5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5089 attached
, child_tidptr=0x555585854690) = 5
[  120.039135][ T4465] Bluetooth: hci0: command 0x041b tx timeout
[pid  5089] set_robust_list(0x5555858546a0, 24) = 0
[pid  5089] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5089] setpgid(0, 0)               = 0
[pid  5089] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5089] write(3, "1000", 4)         = 4
[pid  5089] close(3)                    = 0
[pid  5089] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  5089] setns(201, 0)               = 0
[pid  5089] socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM) = 4
[pid  5089] setns(3, 0)                 = 0
[pid  5089] close(3)                    = 0
[pid  5089] connect(4, {sa_family=AF_BLUETOOTH, rc_bdaddr=ff:ff:ff:ff:ff:ff, rc_channel=2}, 10 <unfinished ...>
[pid  5081] kill(-5, SIGKILL)           = 0
[pid  5089] <... connect resumed>)      = ?
[pid  5081] kill(5, SIGKILL)            = 0
[pid  5089] +++ killed by SIGKILL +++
[pid  5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} ---
[pid  5081] restart_syscall(<... resuming interrupted kill ...>) = 0
[pid  5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5092 attached
, child_tidptr=0x555585854690) = 6
[pid  5092] set_robust_list(0x5555858546a0, 24) = 0
[pid  5092] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5092] setpgid(0, 0)               = 0
[pid  5092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5092] write(3, "1000", 4)         = 4
[pid  5092] close(3)                    = 0
[pid  5092] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  5092] setns(201, 0)               = 0
[pid  5092] socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM) = 4
[pid  5092] setns(3, 0)                 = 0
[pid  5092] close(3)                    = 0
[pid  5092] connect(4, {sa_family=AF_BLUETOOTH, rc_bdaddr=ff:ff:ff:ff:ff:ff, rc_channel=2}, 10 <unfinished ...>
[pid  5081] kill(-6, SIGKILL <unfinished ...>
[pid  5092] <... connect resumed>)      = ?
[pid  5081] <... kill resumed>)         = 0
[pid  5092] +++ killed by SIGKILL +++
[pid  5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=6, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} ---
[pid  5081] kill(6, SIGKILL)            = 0
[pid  5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5094 attached
, child_tidptr=0x555585854690) = 7
[pid  5094] set_robust_list(0x5555858546a0, 24) = 0
[pid  5094] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5094] setpgid(0, 0)               = 0
[pid  5094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5094] write(3, "1000", 4)         = 4
[pid  5094] close(3)                    = 0
[pid  5094] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  5094] setns(201, 0)               = 0
[pid  5094] socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM) = 4
[pid  5094] setns(3, 0)                 = 0
[pid  5094] close(3)                    = 0
[pid  5094] connect(4, {sa_family=AF_BLUETOOTH, rc_bdaddr=ff:ff:ff:ff:ff:ff, rc_channel=2}, 10 <unfinished ...>
[pid  5081] kill(-7, SIGKILL)           = 0
[pid  5081] kill(7, SIGKILL)            = 0
[pid  5094] <... connect resumed>)      = ?
[pid  5094] +++ killed by SIGKILL +++
[pid  5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=7, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} ---
[pid  5081] restart_syscall(<... resuming interrupted kill ...>) = 0
[pid  5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5097 attached
, child_tidptr=0x555585854690) = 8
[pid  5097] set_robust_list(0x5555858546a0, 24) = 0
[pid  5097] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5097] setpgid(0, 0)               = 0
[pid  5097] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5097] write(3, "1000", 4)         = 4
[pid  5097] close(3)                    = 0
[pid  5097] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  5097] setns(201, 0)               = 0
[pid  5097] socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM) = 4
[pid  5097] setns(3, 0)                 = 0
[pid  5097] close(3)                    = 0
[pid  5097] connect(4, {sa_family=AF_BLUETOOTH, rc_bdaddr=ff:ff:ff:ff:ff:ff, rc_channel=2}, 10 <unfinished ...>
[pid  5081] kill(-8, SIGKILL <unfinished ...>
[pid  5097] <... connect resumed>)      = ?
[pid  5081] <... kill resumed>)         = 0
[pid  5097] +++ killed by SIGKILL +++
[pid  5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=8, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} ---
[pid  5081] kill(8, SIGKILL)            = 0
[pid  5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5102 attached
, child_tidptr=0x555585854690) = 9
[pid  5102] set_robust_list(0x5555858546a0, 24) = 0
[pid  5102] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5102] setpgid(0, 0)               = 0
[pid  5102] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5102] write(3, "1000", 4)         = 4
[pid  5102] close(3)                    = 0
[pid  5102] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  5102] setns(201, 0)               = 0
[pid  5102] socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM) = 4
[pid  5102] setns(3, 0)                 = 0
[pid  5102] close(3)                    = 0
[pid  5102] connect(4, {sa_family=AF_BLUETOOTH, rc_bdaddr=ff:ff:ff:ff:ff:ff, rc_channel=2}, 10 <unfinished ...>
[pid  5081] kill(-9, SIGKILL <unfinished ...>
[pid  5102] <... connect resumed>)      = ?
[pid  5081] <... kill resumed>)         = 0
[pid  5081] kill(9, SIGKILL)            = 0
[pid  5102] +++ killed by SIGKILL +++
[pid  5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=9, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} ---
[pid  5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5105 attached
, child_tidptr=0x555585854690) = 10
[pid  5105] set_robust_list(0x5555858546a0, 24) = 0
[pid  5105] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5105] setpgid(0, 0)               = 0
[pid  5105] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5105] write(3, "1000", 4)         = 4
[pid  5105] close(3)                    = 0
[pid  5105] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  5105] setns(201, 0)               = 0
[pid  5105] socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM) = 4
[pid  5105] setns(3, 0)                 = 0
[pid  5105] close(3)                    = 0
[pid  5105] connect(4, {sa_family=AF_BLUETOOTH, rc_bdaddr=ff:ff:ff:ff:ff:ff, rc_channel=2}, 10 <unfinished ...>
[pid  5081] kill(-10, SIGKILL <unfinished ...>
[pid  5105] <... connect resumed>)      = ?
[pid  5081] <... kill resumed>)         = 0
[pid  5081] kill(10, SIGKILL)           = 0
[pid  5105] +++ killed by SIGKILL +++
[pid  5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=10, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} ---
[pid  5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5106 attached
, child_tidptr=0x555585854690) = 11
[pid  5106] set_robust_list(0x5555858546a0, 24) = 0
[pid  5106] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5106] setpgid(0, 0)               = 0
[pid  5106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5106] write(3, "1000", 4)         = 4
[pid  5106] close(3)                    = 0
[pid  5106] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  5106] setns(201, 0)               = 0
[pid  5106] socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM) = 4
[pid  5106] setns(3, 0)                 = 0
[pid  5106] close(3)                    = 0
[pid  5106] connect(4, {sa_family=AF_BLUETOOTH, rc_bdaddr=ff:ff:ff:ff:ff:ff, rc_channel=2}, 10) = -1 ECONNREFUSED (Connection refused)
[pid  5106] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  5106] setns(201, 0)               = 0
[pid  5106] socket(AF_BLUETOOTH, SOCK_RAW, BTPROTO_RFCOMM) = 5
[pid  5106] setns(3, 0)                 = 0
[pid  5106] close(3)                    = 0
[pid  5106] openat(AT_FDCWD, "blkio.bfq.io_serviced", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
[pid  5106] write(3, "\x0a\xfb\x84\xab\x3c\xec\xc3\xc2\x06\x57\x15\x00\x00\x00\x00\x77\x5f\x89\x03\x17\x19\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 34136651) = 16776704
[pid  5106] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 3, 0) = 0x20000000
[pid  5106] preadv(3, 0x200015c0, 5, 0) = 16776704
[  151.218872][ T5106] 
[  151.221259][ T5106] ======================================================
[  151.228273][ T5106] WARNING: possible circular locking dependency detected
[  151.235291][ T5106] 6.8.0-syzkaller-08951-gfe46a7dd189e #0 Not tainted
[  151.241976][ T5106] ------------------------------------------------------
[  151.249006][ T5106] syz-executor169/5106 is trying to acquire lock:
[  151.255423][ T5106] ffffffff8f58c328 (rfcomm_mutex){+.+.}-{3:3}, at: rfcomm_dlc_exists+0x5f/0x1a0
[  151.264569][ T5106] 
[  151.264569][ T5106] but task is already holding lock:
[  151.271948][ T5106] ffffffff8f5912a8 (rfcomm_ioctl_mutex){+.+.}-{3:3}, at: rfcomm_dev_ioctl+0x8e4/0x1c80
[  151.281656][ T5106] 
[  151.281656][ T5106] which lock already depends on the new lock.
[  151.281656][ T5106] 
[  151.292056][ T5106] 
[  151.292056][ T5106] the existing dependency chain (in reverse order) is:
[  151.301069][ T5106] 
[  151.301069][ T5106] -> #3 (rfcomm_ioctl_mutex){+.+.}-{3:3}:
[  151.308994][ T5106]        __mutex_lock+0x175/0x9c0
[  151.314055][ T5106]        rfcomm_dev_ioctl+0x8e4/0x1c80
[  151.319525][ T5106]        rfcomm_sock_ioctl+0xb4/0xe0
[  151.324834][ T5106]        sock_do_ioctl+0x119/0x280
[  151.329965][ T5106]        sock_ioctl+0x22e/0x6c0
[  151.334834][ T5106]        __x64_sys_ioctl+0x196/0x220
[  151.340146][ T5106]        do_syscall_64+0xd5/0x260
[  151.345197][ T5106]        entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  151.351640][ T5106] 
[  151.351640][ T5106] -> #2 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}:
[  151.361061][ T5106]        lock_sock_nested+0x3a/0xf0
[  151.366271][ T5106]        rfcomm_sk_state_change+0x6d/0x3b0
[  151.372104][ T5106]        __rfcomm_dlc_close+0x28f/0x720
[  151.377673][ T5106]        rfcomm_dlc_close+0x1eb/0x240
[  151.383067][ T5106]        __rfcomm_sock_close+0xa7/0x230
[  151.388644][ T5106]        rfcomm_sock_shutdown+0xd5/0x230
[  151.394334][ T5106]        rfcomm_sock_release+0x5d/0x140
[  151.399924][ T5106]        __sock_release+0xb3/0x270
[  151.405052][ T5106]        sock_close+0x1c/0x30
[  151.409746][ T5106]        __fput+0x273/0xb80
[  151.414259][ T5106]        task_work_run+0x151/0x250
[  151.419396][ T5106]        do_exit+0xa7d/0x2be0
[  151.424086][ T5106]        do_group_exit+0xd3/0x2a0
[  151.429121][ T5106]        get_signal+0x2390/0x2760
[  151.434186][ T5106]        arch_do_signal_or_restart+0x90/0x7e0
[  151.440279][ T5106]        syscall_exit_to_user_mode+0x14a/0x2a0
[  151.446468][ T5106]        do_syscall_64+0xe2/0x260
[  151.451522][ T5106]        entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  151.457966][ T5106] 
[  151.457966][ T5106] -> #1 (&d->lock){+.+.}-{3:3}:
[  151.465022][ T5106]        __mutex_lock+0x175/0x9c0
[  151.470069][ T5106]        __rfcomm_dlc_close+0x235/0x720
[  151.475631][ T5106]        rfcomm_dlc_close+0x1eb/0x240
[  151.481023][ T5106]        __rfcomm_sock_close+0xa7/0x230
[  151.486593][ T5106]        rfcomm_sock_shutdown+0xd5/0x230
[  151.492252][ T5106]        rfcomm_sock_release+0x5d/0x140
[  151.497820][ T5106]        __sock_release+0xb3/0x270
[  151.502954][ T5106]        sock_close+0x1c/0x30
[  151.507680][ T5106]        __fput+0x273/0xb80
[  151.512212][ T5106]        task_work_run+0x151/0x250
[  151.517342][ T5106]        do_exit+0xa7d/0x2be0
[  151.522037][ T5106]        do_group_exit+0xd3/0x2a0
[  151.527073][ T5106]        get_signal+0x2390/0x2760
[  151.532127][ T5106]        arch_do_signal_or_restart+0x90/0x7e0
[  151.538215][ T5106]        syscall_exit_to_user_mode+0x14a/0x2a0
[  151.544399][ T5106]        do_syscall_64+0xe2/0x260
[  151.549451][ T5106]        entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  151.555892][ T5106] 
[  151.555892][ T5106] -> #0 (rfcomm_mutex){+.+.}-{3:3}:
[  151.563297][ T5106]        __lock_acquire+0x2478/0x3b30
[  151.568687][ T5106]        lock_acquire+0x1b1/0x540
[  151.573741][ T5106]        __mutex_lock+0x175/0x9c0
[  151.578787][ T5106]        rfcomm_dlc_exists+0x5f/0x1a0
[  151.584183][ T5106]        rfcomm_dev_ioctl+0x9c5/0x1c80
[  151.589652][ T5106]        rfcomm_sock_ioctl+0xb4/0xe0
[  151.594963][ T5106]        sock_do_ioctl+0x119/0x280
[  151.600092][ T5106]        sock_ioctl+0x22e/0x6c0
[  151.604960][ T5106]        __x64_sys_ioctl+0x196/0x220
[  151.610261][ T5106]        do_syscall_64+0xd5/0x260
[  151.615322][ T5106]        entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  151.621798][ T5106] 
[  151.621798][ T5106] other info that might help us debug this:
[  151.621798][ T5106] 
[  151.632027][ T5106] Chain exists of:
[  151.632027][ T5106]   rfcomm_mutex --> sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM --> rfcomm_ioctl_mutex
[  151.632027][ T5106] 
[  151.646821][ T5106]  Possible unsafe locking scenario:
[  151.646821][ T5106] 
[  151.654266][ T5106]        CPU0                    CPU1
[  151.659630][ T5106]        ----                    ----
[  151.664991][ T5106]   lock(rfcomm_ioctl_mutex);
[  151.669677][ T5106]                                lock(sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM);
[  151.678360][ T5106]                                lock(rfcomm_ioctl_mutex);
[  151.685574][ T5106]   lock(rfcomm_mutex);
[  151.689738][ T5106] 
[  151.689738][ T5106]  *** DEADLOCK ***
[  151.689738][ T5106] 
[  151.697877][ T5106] 2 locks held by syz-executor169/5106:
[  151.703423][ T5106]  #0: ffff888023149258 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: rfcomm_sock_ioctl+0xa7/0xe0
[  151.714870][ T5106]  #1: ffffffff8f5912a8 (rfcomm_ioctl_mutex){+.+.}-{3:3}, at: rfcomm_dev_ioctl+0x8e4/0x1c80
[  151.725006][ T5106] 
[  151.725006][ T5106] stack backtrace:
[  151.730890][ T5106] CPU: 1 PID: 5106 Comm: syz-executor169 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
[  151.740967][ T5106] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
[  151.751032][ T5106] Call Trace:
[  151.754322][ T5106]  <TASK>
[  151.757256][ T5106]  dump_stack_lvl+0x116/0x1f0
[  151.761960][ T5106]  check_noncircular+0x31a/0x400
[  151.766920][ T5106]  ? __pfx_check_noncircular+0x10/0x10
[  151.772398][ T5106]  ? __kernel_text_address+0xd/0x40
[  151.777619][ T5106]  ? unwind_get_return_address+0x45/0xe0
[  151.783290][ T5106]  ? srso_return_thunk+0x5/0x5f
[  151.788182][ T5106]  ? lockdep_lock+0xc6/0x200
[  151.792803][ T5106]  ? __pfx_lockdep_lock+0x10/0x10
[  151.797859][ T5106]  ? srso_return_thunk+0x5/0x5f
[  151.802765][ T5106]  __lock_acquire+0x2478/0x3b30
[  151.807643][ T5106]  ? __pfx___lock_acquire+0x10/0x10
[  151.812856][ T5106]  ? add_lock_to_list+0x17d/0x380
[  151.817914][ T5106]  lock_acquire+0x1b1/0x540
[  151.822436][ T5106]  ? rfcomm_dlc_exists+0x5f/0x1a0
[  151.827486][ T5106]  ? __pfx_lock_acquire+0x10/0x10
[  151.832555][ T5106]  ? srso_return_thunk+0x5/0x5f
[  151.837436][ T5106]  ? __pfx___might_resched+0x10/0x10
[  151.842749][ T5106]  __mutex_lock+0x175/0x9c0
[  151.847276][ T5106]  ? rfcomm_dlc_exists+0x5f/0x1a0
[  151.852321][ T5106]  ? srso_return_thunk+0x5/0x5f
[  151.857214][ T5106]  ? aa_get_newest_label+0x376/0x680
[  151.862514][ T5106]  ? rfcomm_dlc_exists+0x5f/0x1a0
[  151.867562][ T5106]  ? srso_return_thunk+0x5/0x5f
[  151.872442][ T5106]  ? __pfx___mutex_lock+0x10/0x10
[  151.877511][ T5106]  ? __pfx_lock_release+0x10/0x10
[  151.882571][ T5106]  ? srso_return_thunk+0x5/0x5f
[  151.887457][ T5106]  ? srso_return_thunk+0x5/0x5f
[  151.892334][ T5106]  ? apparmor_capable+0x126/0x1e0
[  151.897419][ T5106]  ? rfcomm_dlc_exists+0x5f/0x1a0
[  151.902467][ T5106]  rfcomm_dlc_exists+0x5f/0x1a0
[  151.907347][ T5106]  rfcomm_dev_ioctl+0x9c5/0x1c80
[  151.912312][ T5106]  ? srso_return_thunk+0x5/0x5f
[  151.917199][ T5106]  ? __pfx_rfcomm_dev_ioctl+0x10/0x10
[  151.922590][ T5106]  ? __pfx_lock_release+0x10/0x10
[  151.927631][ T5106]  ? srso_return_thunk+0x5/0x5f
[  151.932522][ T5106]  ? mark_held_locks+0x9f/0xe0
[  151.937315][ T5106]  ? rfcomm_sock_ioctl+0xa7/0xe0
[  151.942285][ T5106]  ? __local_bh_enable_ip+0xa4/0x120
[  151.947609][ T5106]  rfcomm_sock_ioctl+0xb4/0xe0
[  151.952413][ T5106]  sock_do_ioctl+0x119/0x280
[  151.957030][ T5106]  ? __pfx_sock_do_ioctl+0x10/0x10
[  151.962164][ T5106]  ? srso_return_thunk+0x5/0x5f
[  151.967050][ T5106]  ? srso_return_thunk+0x5/0x5f
[  151.971932][ T5106]  sock_ioctl+0x22e/0x6c0
[  151.976284][ T5106]  ? __pfx_sock_ioctl+0x10/0x10
[  151.981165][ T5106]  ? srso_return_thunk+0x5/0x5f
[  151.986042][ T5106]  ? __pfx_sock_ioctl+0x10/0x10
[  151.990919][ T5106]  __x64_sys_ioctl+0x196/0x220
[  151.995710][ T5106]  do_syscall_64+0xd5/0x260
[  152.000249][ T5106]  entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  152.006173][ T5106] RIP: 0033:0x7f05fa683d89
[  152.010602][ T5106] 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
[  152.030222][ T5106] RSP: 002b:00007ffd1c32e068 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  152.038654][ T5106] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f05fa683d89
[  152.046644][ T5106] RDX: 0000000020000100 RSI: 00000000400452c8 RDI: 0000000000000005
[  152.054624][ T5106] RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000000000000000
[  152.062603][ T5106] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd1c32e0c0
[pid  5106] ioctl(5, RFCOMMCREATEDEV, 0x20000100) = 0
[pid  5106] close(3)                    = 0
[pid  5106] close(4)                    = 0
[pid  5106] close(5)                    = 0
[pid  5106] close(6)                    = -1 EBADF (Bad file descriptor)
[pid  5106] close(7)                    = -1 EBADF (Bad file descriptor)
[pid  5106] close(8)                    = -1 EBADF (Bad file descriptor)
[pid  5106] close(9)                    = -1 EBADF (Bad file descriptor)
[pid  5106] close(10)                   = -1 EBADF (Bad file descriptor)
[pid  5106] close(11)                   = -1 EBADF (Bad file descriptor)
[pid  5106] close(12)                   = -1 EBADF (Bad file descriptor)
[pid  5106] close(13)                   = -1 EBADF (Bad file descriptor)
[pid  5106] close(14)                   = -1 EBADF (Bad file descriptor)
[pid  5106] close(15)                   = -1 EBADF (Bad file descriptor)
[pid  5106] close(16)                   = -1 EBADF (Bad file descriptor)
[pid  5106] close(17)                   = -1 EBADF (Bad file descriptor)
[pid  5106] close(18)                   = -1 EBADF (Bad file descriptor)
[pid  5106] close(19)                   = -1 EBADF (Bad file descriptor)
[pid  5106] close(20)                   = -1 EBADF (Bad file descriptor)
[pid  5106] close(21)                   = -1 EBADF (Bad file descriptor)
[pid  5106] close(22)                   = -1 EBADF (Bad file descriptor)
[pid  5106] close(23)                   = -1 EBADF (Bad file descriptor)
[pid  5106] close(24)                   = -1 EBADF (Bad file descriptor)
[pid  5106] close(25)                   = -1 EBADF (Bad file descriptor)
[pid  5106] close(26)                   = -1 EBADF (Bad file descriptor)
[pid  5106] close(27)                   = -1 EBADF (Bad file descriptor)
[pid  5106] close(28)                   = -1 EBADF (Bad file descriptor)
[pid  5106] close(29)                   = -1 EBADF (Bad file descriptor)
[pid  5106] exit_group(0)               = ?
[  152.070581][ T5106] R13: 00007ffd1c32e0d0 R14: 0000000000023712 R15: 00007ffd1c32e090
[  152.078590][ T5106]  </TASK>
[pid  5106] +++ exited with 0 +++
[pid  5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11, si_uid=0, si_status=0, si_utime=0, si_stime=70 /* 0.70 s */} ---
[pid  5081] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555585854690) = 12
./strace-static-x86_64: Process 5108 attached
[pid  5108] set_robust_list(0x5555858546a0, 24) = 0
[pid  5108] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5108] setpgid(0, 0)               = 0
[pid  5108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5108] write(3, "1000", 4)         = 4
[pid  5108] close(3)                    = 0
[pid  5108] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  5108] setns(201, 0)               = 0
[pid  5108] socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM) = 4
[pid  5108] setns(3, 0)                 = 0
[pid  5108] close(3)                    = 0
[  154.278693][ T4465] Bluetooth: hci0: command 0x041b tx timeout
[pid  5108] connect(4, {sa_family=AF_BLUETOOTH, rc_bdaddr=ff:ff:ff:ff:ff:ff, rc_channel=2}, 10 <unfinished ...>
[pid  5081] kill(-12, SIGKILL <unfinished ...>
[pid  5108] <... connect resumed>)      = ?
[pid  5081] <... kill resumed>)         = 0
[pid  5081] kill(12, SIGKILL)           = 0
[pid  5108] +++ killed by SIGKILL +++
[pid  5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=12, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} ---
[pid  5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555585854690) = 13
./strace-static-x86_64: Process 5109 attached
[pid  5109] set_robust_list(0x5555858546a0, 24) = 0
[pid  5109] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5109] setpgid(0, 0)               = 0
[pid  5109] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5109] write(3, "1000", 4)         = 4
[pid  5109] close(3)                    = 0
[pid  5109] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  5109] setns(201, 0)               = 0
[pid  5109] socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM) = 4
[pid  5109] setns(3, 0)                 = 0
[pid  5109] close(3)                    = 0