./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor197201728

<...>
Warning: Permanently added '10.128.0.119' (ED25519) to the list of known hosts.
execve("./syz-executor197201728", ["./syz-executor197201728"], 0x7ffebb430d40 /* 10 vars */) = 0
brk(NULL)                               = 0x55555598c000
brk(0x55555598cd40)                     = 0x55555598cd40
arch_prctl(ARCH_SET_FS, 0x55555598c3c0) = 0
set_tid_address(0x55555598c690)         = 5064
set_robust_list(0x55555598c6a0, 24)     = 0
rseq(0x55555598cce0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor197201728", 4096) = 27
getrandom("\xd2\xee\x98\x08\xff\xfb\x6a\x83", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x55555598cd40
brk(0x5555559add40)                     = 0x5555559add40
brk(0x5555559ae000)                     = 0x5555559ae000
mprotect(0x7fe5b9b74000, 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=0x55555598c690) = 5065
./strace-static-x86_64: Process 5065 attached
[pid  5065] set_robust_list(0x55555598c6a0, 24) = 0
[pid  5065] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid  5065] socket(AF_BLUETOOTH, SOCK_RAW, BTPROTO_HCI) = 3
[pid  5065] openat(AT_FDCWD, "/dev/vhci", O_RDWR) = 4
[pid  5065] dup2(4, 202)                = 202
[pid  5065] close(4)                    = 0
[pid  5065] write(202, "\xff\x00", 2)   = 2
[pid  5065] read(202, "\xff\x00\x00\x00", 4) = 4
[pid  5065] rt_sigaction(SIGRT_1, {sa_handler=0x7fe5b9b15d40, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fe5b9b073c0}, NULL, 8) = 0
[pid  5065] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5065] mmap(NULL, 8392704, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fe5b92b0000
[pid  5065] mprotect(0x7fe5b92b1000, 8388608, PROT_READ|PROT_WRITE) = 0
[pid  5065] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5065] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fe5b9ab0990, parent_tid=0x7fe5b9ab0990, exit_signal=0, stack=0x7fe5b92b0000, stack_size=0x800300, tls=0x7fe5b9ab06c0}./strace-static-x86_64: Process 5068 attached
 => {parent_tid=[2]}, 88) = 2
[pid  5065] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5065] ioctl(3, HCIDEVUP <unfinished ...>
[pid  5068] rseq(0x7fe5b9ab0fe0, 0x20, 0, 0x53053053) = 0
[pid  5068] set_robust_list(0x7fe5b9ab09a0, 24) = 0
[pid  5068] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5068] read(202, "\x01\x03\x0c\x00", 1024) = 4
[pid  5068] 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  5068] read(202, "\x01\x03\x10\x00", 1024) = 4
[pid  5068] 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  5068] read(202, "\x01\x01\x10\x00", 1024) = 4
[pid  5068] 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  5068] read(202, "\x01\x09\x10\x00", 1024) = 4
[pid  5068] 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  5068] read(202, "\x01\x05\x10\x00", 1024) = 4
[pid  5068] 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  5068] read(202, "\x01\x23\x0c\x00", 1024) = 4
[pid  5068] 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
[   81.008335][ T5066] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1
[   81.017680][ T5066] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9
[   81.026881][ T5066] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9
[pid  5068] read(202, "\x01\x14\x0c\x00", 1024) = 4
[pid  5068] 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  5068] read(202, "\x01\x25\x0c\x00", 1024) = 4
[pid  5068] 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
[   81.052477][ T5066] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4
[pid  5068] read(202, "\x01\x38\x0c\x00", 1024) = 4
[pid  5068] 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  5068] read(202, "\x01\x39\x0c\x00", 1024) = 4
[pid  5068] 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  5068] read(202, "\x01\x16\x0c\x02\x00\x7d", 1024) = 6
[pid  5068] 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  5068] read(202,  <unfinished ...>
[pid  5065] <... ioctl resumed>, 0)     = -1 EALREADY (Operation already in progress)
[pid  5065] ioctl(3, HCISETSCAN <unfinished ...>
[pid  5068] <... read resumed>"\x01\x1a\x0c\x01\x02", 1024) = 5
[   81.083934][ T5066] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3
[   81.095989][ T5066] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2
[pid  5068] 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  5068] rt_sigprocmask(SIG_BLOCK, ~[RT_1], NULL, 8) = 0
[pid  5068] madvise(0x7fe5b92b0000, 8372224, MADV_DONTNEED) = 0
[pid  5065] <... ioctl resumed>, 0x7ffde47c3e5c) = 0
[pid  5068] exit(0 <unfinished ...>
[pid  5065] 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  5068] <... exit resumed>)         = ?
[pid  5065] <... writev resumed>)       = 13
[pid  5068] +++ exited with 0 +++
[pid  5065] 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  5065] 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  5065] 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  5065] close(3)                    = 0
[pid  5065] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5065] setsid()                    = 1
[pid  5065] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  5065] dup2(3, 201)                = 201
[pid  5065] close(3)                    = 0
[pid  5065] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid  5065] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid  5065] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid  5065] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid  5065] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid  5065] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid  5065] unshare(CLONE_NEWNS)        = 0
[pid  5065] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[pid  5065] unshare(CLONE_NEWIPC)       = 0
[pid  5065] unshare(CLONE_NEWCGROUP)    = 0
[pid  5065] unshare(CLONE_NEWUTS)       = 0
[pid  5065] unshare(CLONE_SYSVSEM)      = 0
[pid  5065] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3
[pid  5065] write(3, "16777216", 8)     = 8
[pid  5065] close(3)                    = 0
[pid  5065] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3
[pid  5065] write(3, "536870912", 9)    = 9
[pid  5065] close(3)                    = 0
[pid  5065] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3
[pid  5065] write(3, "1024", 4)         = 4
[pid  5065] close(3)                    = 0
[pid  5065] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3
[pid  5065] write(3, "8192", 4)         = 4
[pid  5065] close(3)                    = 0
[pid  5065] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3
[pid  5065] write(3, "1024", 4)         = 4
[pid  5065] close(3)                    = 0
[pid  5065] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3
[pid  5065] write(3, "1024", 4)         = 4
[pid  5065] close(3)                    = 0
[pid  5065] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3
[pid  5065] write(3, "1024 1048576 500 1024", 21) = 21
[pid  5065] close(3)                    = 0
[pid  5065] getpid()                    = 1
[pid  5065] 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  5065] 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  5065] unshare(CLONE_NEWNET)       = 0
[pid  5065] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid  5065] write(3, "0 65535", 7)      = 7
[pid  5065] close(3)                    = 0
[pid  5065] mkdir("/dev/binderfs", 0777) = 0
[pid  5065] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0
[pid  5065] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555598c690) = 3
./strace-static-x86_64: Process 5070 attached
[pid  5070] set_robust_list(0x55555598c6a0, 24) = 0
[pid  5070] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5070] setpgid(0, 0)               = 0
[pid  5070] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5070] write(3, "1000", 4)         = 4
[pid  5070] close(3)                    = 0
[pid  5070] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  5070] setns(201, 0)               = 0
[pid  5070] socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM) = 4
[pid  5070] setns(3, 0)                 = 0
[pid  5070] close(3)                    = 0
[   83.212247][ T4457] Bluetooth: hci0: command 0x0409 tx timeout
[   85.282450][ T4457] Bluetooth: hci0: command 0x041b tx timeout
[pid  5070] connect(4, {sa_family=AF_BLUETOOTH, rc_bdaddr=aa:aa:aa:aa:aa:00, rc_channel=8}, 10 <unfinished ...>
[pid  5065] kill(-3, SIGKILL <unfinished ...>
[pid  5070] <... connect resumed>)      = ?
[pid  5065] <... kill resumed>)         = 0
[pid  5070] +++ killed by SIGKILL +++
[pid  5065] --- 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  5065] kill(3, SIGKILL)            = 0
[pid  5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555598c690) = 4
./strace-static-x86_64: Process 5071 attached
[pid  5071] set_robust_list(0x55555598c6a0, 24) = 0
[pid  5071] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5071] setpgid(0, 0)               = 0
[pid  5071] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5071] write(3, "1000", 4)         = 4
[pid  5071] close(3)                    = 0
[pid  5071] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  5071] setns(201, 0)               = 0
[pid  5071] socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM) = 4
[pid  5071] setns(3, 0)                 = 0
[pid  5071] close(3)                    = 0
[   87.362177][ T4457] Bluetooth: hci0: command 0x040f tx timeout
[   89.441895][ T4457] Bluetooth: hci0: command 0x0419 tx timeout
[pid  5071] connect(4, {sa_family=AF_BLUETOOTH, rc_bdaddr=aa:aa:aa:aa:aa:00, rc_channel=8}, 10 <unfinished ...>
[pid  5065] kill(-4, SIGKILL <unfinished ...>
[pid  5071] <... connect resumed>)      = ?
[pid  5065] <... kill resumed>)         = 0
[pid  5071] +++ killed by SIGKILL +++
[pid  5065] kill(4, SIGKILL)            = 0
[pid  5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=4, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} ---
[   91.521935][ T4457] Bluetooth: hci0: command 0x0405 tx timeout
[pid  5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5072 attached
, child_tidptr=0x55555598c690) = 5
[pid  5072] set_robust_list(0x55555598c6a0, 24) = 0
[pid  5072] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5072] setpgid(0, 0)               = 0
[pid  5072] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5072] write(3, "1000", 4)         = 4
[pid  5072] close(3)                    = 0
[pid  5072] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  5072] setns(201, 0)               = 0
[pid  5072] socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM) = 4
[pid  5072] setns(3, 0)                 = 0
[pid  5072] close(3)                    = 0
[   92.404988][   T55] cfg80211: failed to load regulatory.db
[pid  5072] connect(4, {sa_family=AF_BLUETOOTH, rc_bdaddr=aa:aa:aa:aa:aa:00, rc_channel=8}, 10 <unfinished ...>
[pid  5065] kill(-5, SIGKILL)           = 0
[pid  5072] <... connect resumed>)      = ?
[pid  5065] kill(5, SIGKILL)            = 0
[pid  5072] +++ killed by SIGKILL +++
[pid  5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} ---
[pid  5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555598c690) = 6
./strace-static-x86_64: Process 5076 attached
[pid  5076] set_robust_list(0x55555598c6a0, 24) = 0
[pid  5076] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5076] setpgid(0, 0)               = 0
[pid  5076] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5076] write(3, "1000", 4)         = 4
[pid  5076] close(3)                    = 0
[pid  5076] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  5076] setns(201, 0)               = 0
[pid  5076] socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM) = 4
[pid  5076] setns(3, 0)                 = 0
[pid  5076] close(3)                    = 0
[pid  5076] connect(4, {sa_family=AF_BLUETOOTH, rc_bdaddr=aa:aa:aa:aa:aa:00, rc_channel=8}, 10 <unfinished ...>
[pid  5065] kill(-6, SIGKILL)           = 0
[pid  5076] <... connect resumed>)      = ?
[pid  5065] kill(6, SIGKILL)            = 0
[pid  5076] +++ killed by SIGKILL +++
[pid  5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=6, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=1 /* 0.01 s */} ---
[pid  5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5078 attached
 <unfinished ...>
[pid  5078] set_robust_list(0x55555598c6a0, 24) = 0
[pid  5078] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5065] <... clone resumed>, child_tidptr=0x55555598c690) = 7
[pid  5078] <... prctl resumed>)        = 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
[pid  5078] connect(4, {sa_family=AF_BLUETOOTH, rc_bdaddr=aa:aa:aa:aa:aa:00, rc_channel=8}, 10 <unfinished ...>
[pid  5065] kill(-7, SIGKILL <unfinished ...>
[pid  5078] <... connect resumed>)      = ?
[pid  5065] <... kill resumed>)         = 0
[pid  5065] kill(7, SIGKILL)            = 0
[pid  5078] +++ killed by SIGKILL +++
[pid  5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=7, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} ---
[pid  5065] restart_syscall(<... resuming interrupted kill ...>) = 0
[pid  5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5081 attached
, child_tidptr=0x55555598c690) = 8
[pid  5081] set_robust_list(0x55555598c6a0, 24) = 0
[pid  5081] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5081] setpgid(0, 0)               = 0
[pid  5081] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5081] write(3, "1000", 4)         = 4
[pid  5081] close(3)                    = 0
[pid  5081] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  5081] setns(201, 0)               = 0
[pid  5081] socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM) = 4
[pid  5081] setns(3, 0)                 = 0
[pid  5081] close(3)                    = 0
[pid  5081] connect(4, {sa_family=AF_BLUETOOTH, rc_bdaddr=aa:aa:aa:aa:aa:00, rc_channel=8}, 10 <unfinished ...>
[pid  5065] kill(-8, SIGKILL <unfinished ...>
[pid  5081] <... connect resumed>)      = ?
[pid  5065] <... kill resumed>)         = 0
[pid  5065] kill(8, SIGKILL)            = 0
[pid  5081] +++ killed by SIGKILL +++
[pid  5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=8, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} ---
[pid  5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5084 attached
, child_tidptr=0x55555598c690) = 9
[pid  5084] set_robust_list(0x55555598c6a0, 24) = 0
[pid  5084] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5084] setpgid(0, 0)               = 0
[pid  5084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5084] write(3, "1000", 4)         = 4
[pid  5084] close(3)                    = 0
[pid  5084] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  5084] setns(201, 0)               = 0
[pid  5084] socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM) = 4
[pid  5084] setns(3, 0)                 = 0
[pid  5084] close(3)                    = 0
[pid  5084] connect(4, {sa_family=AF_BLUETOOTH, rc_bdaddr=aa:aa:aa:aa:aa:00, rc_channel=8}, 10 <unfinished ...>
[pid  5065] kill(-9, SIGKILL)           = 0
[pid  5084] <... connect resumed>)      = ?
[pid  5065] kill(9, SIGKILL)            = 0
[pid  5084] +++ killed by SIGKILL +++
[pid  5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=9, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} ---
[pid  5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5092 attached
 <unfinished ...>
[pid  5092] set_robust_list(0x55555598c6a0, 24) = 0
[pid  5092] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5092] setpgid(0, 0)               = 0
[pid  5065] <... clone resumed>, child_tidptr=0x55555598c690) = 10
[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=aa:aa:aa:aa:aa:00, rc_channel=8}, 10 <unfinished ...>
[pid  5065] kill(-10, SIGKILL <unfinished ...>
[pid  5092] <... connect resumed>)      = ?
[pid  5065] <... kill resumed>)         = 0
[pid  5065] kill(10, SIGKILL <unfinished ...>
[pid  5092] +++ killed by SIGKILL +++
[pid  5065] <... kill resumed>)         = 0
[pid  5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=10, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} ---
[pid  5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5095 attached
, child_tidptr=0x55555598c690) = 11
[pid  5095] set_robust_list(0x55555598c6a0, 24) = 0
[pid  5095] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5095] setpgid(0, 0)               = 0
[pid  5095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5095] write(3, "1000", 4)         = 4
[pid  5095] close(3)                    = 0
[pid  5095] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  5095] setns(201, 0)               = 0
[pid  5095] socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM) = 4
[pid  5095] setns(3, 0)                 = 0
[pid  5095] close(3)                    = 0
[pid  5095] connect(4, {sa_family=AF_BLUETOOTH, rc_bdaddr=aa:aa:aa:aa:aa:00, rc_channel=8}, 10) = -1 ECONNREFUSED (Connection refused)
[pid  5095] getsockopt(-1, SOL_IPV6, IPV6_FLOWLABEL_MGR, 0x20000100, NULL) = -1 EBADF (Bad file descriptor)
[pid  5095] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  5095] setns(201, 0)               = 0
[pid  5095] socket(AF_BLUETOOTH, SOCK_RAW, BTPROTO_RFCOMM) = 5
[pid  5095] setns(3, 0)                 = 0
[pid  5095] close(3)                    = 0
[  121.851626][ T5095] 
[  121.853989][ T5095] ======================================================
[  121.860995][ T5095] WARNING: possible circular locking dependency detected
[  121.868004][ T5095] 6.7.0-rc5-syzkaller-01502-gf7dd48ea76be #0 Not tainted
[  121.875010][ T5095] ------------------------------------------------------
[  121.882043][ T5095] syz-executor197/5095 is trying to acquire lock:
[  121.888437][ T5095] ffffffff8ed38a88 (rfcomm_mutex){+.+.}-{3:3}, at: rfcomm_dlc_exists+0x5b/0x190
[  121.897487][ T5095] 
[  121.897487][ T5095] but task is already holding lock:
[  121.904849][ T5095] ffffffff8ed3da08 (rfcomm_ioctl_mutex){+.+.}-{3:3}, at: rfcomm_dev_ioctl+0x8b9/0x1c50
[  121.914497][ T5095] 
[  121.914497][ T5095] which lock already depends on the new lock.
[  121.914497][ T5095] 
[  121.924887][ T5095] 
[  121.924887][ T5095] the existing dependency chain (in reverse order) is:
[  121.933884][ T5095] 
[  121.933884][ T5095] -> #3 (rfcomm_ioctl_mutex){+.+.}-{3:3}:
[  121.941778][ T5095]        __mutex_lock+0x175/0x9d0
[  121.946825][ T5095]        rfcomm_dev_ioctl+0x8b9/0x1c50
[  121.952279][ T5095]        rfcomm_sock_ioctl+0xb0/0xe0
[  121.957565][ T5095]        sock_do_ioctl+0x113/0x270
[  121.962670][ T5095]        sock_ioctl+0x22e/0x6b0
[  121.967513][ T5095]        __x64_sys_ioctl+0x18f/0x210
[  121.972807][ T5095]        do_syscall_64+0x40/0x110
[  121.977837][ T5095]        entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  121.984254][ T5095] 
[  121.984254][ T5095] -> #2 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}:
[  121.993710][ T5095]        lock_sock_nested+0x3a/0xf0
[  121.998895][ T5095]        rfcomm_sk_state_change+0x6d/0x3a0
[  122.004692][ T5095]        __rfcomm_dlc_close+0x285/0x720
[  122.010414][ T5095]        rfcomm_dlc_close+0x1e7/0x240
[  122.015776][ T5095]        __rfcomm_sock_close+0xa7/0x230
[  122.021313][ T5095]        rfcomm_sock_shutdown+0xd1/0x230
[  122.026930][ T5095]        rfcomm_sock_release+0x5d/0x140
[  122.032462][ T5095]        __sock_release+0xae/0x260
[  122.037647][ T5095]        sock_close+0x1c/0x20
[  122.042311][ T5095]        __fput+0x270/0xbb0
[  122.046800][ T5095]        task_work_run+0x14d/0x240
[  122.051918][ T5095]        do_exit+0xa92/0x2ae0
[  122.056602][ T5095]        do_group_exit+0xd4/0x2a0
[  122.061696][ T5095]        get_signal+0x23be/0x2790
[  122.066742][ T5095]        arch_do_signal_or_restart+0x90/0x7f0
[  122.072803][ T5095]        exit_to_user_mode_prepare+0x121/0x240
[  122.078947][ T5095]        syscall_exit_to_user_mode+0x1e/0x60
[  122.084919][ T5095]        do_syscall_64+0x4d/0x110
[  122.090029][ T5095]        entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  122.096435][ T5095] 
[  122.096435][ T5095] -> #1 (&d->lock){+.+.}-{3:3}:
[  122.103450][ T5095]        __mutex_lock+0x175/0x9d0
[  122.108475][ T5095]        __rfcomm_dlc_close+0x231/0x720
[  122.114018][ T5095]        rfcomm_dlc_close+0x1e7/0x240
[  122.119392][ T5095]        __rfcomm_sock_close+0xa7/0x230
[  122.124940][ T5095]        rfcomm_sock_shutdown+0xd1/0x230
[  122.130602][ T5095]        rfcomm_sock_release+0x5d/0x140
[  122.136159][ T5095]        __sock_release+0xae/0x260
[  122.141262][ T5095]        sock_close+0x1c/0x20
[  122.145938][ T5095]        __fput+0x270/0xbb0
[  122.150518][ T5095]        task_work_run+0x14d/0x240
[  122.155617][ T5095]        do_exit+0xa92/0x2ae0
[  122.160539][ T5095]        do_group_exit+0xd4/0x2a0
[  122.165549][ T5095]        get_signal+0x23be/0x2790
[  122.170580][ T5095]        arch_do_signal_or_restart+0x90/0x7f0
[  122.176659][ T5095]        exit_to_user_mode_prepare+0x121/0x240
[  122.182799][ T5095]        syscall_exit_to_user_mode+0x1e/0x60
[  122.188786][ T5095]        do_syscall_64+0x4d/0x110
[  122.193800][ T5095]        entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  122.200226][ T5095] 
[  122.200226][ T5095] -> #0 (rfcomm_mutex){+.+.}-{3:3}:
[  122.207604][ T5095]        __lock_acquire+0x2433/0x3b20
[  122.212979][ T5095]        lock_acquire+0x1ae/0x520
[  122.217993][ T5095]        __mutex_lock+0x175/0x9d0
[  122.223038][ T5095]        rfcomm_dlc_exists+0x5b/0x190
[  122.228400][ T5095]        rfcomm_dev_ioctl+0x999/0x1c50
[  122.233848][ T5095]        rfcomm_sock_ioctl+0xb0/0xe0
[  122.239117][ T5095]        sock_do_ioctl+0x113/0x270
[  122.244222][ T5095]        sock_ioctl+0x22e/0x6b0
[  122.249069][ T5095]        __x64_sys_ioctl+0x18f/0x210
[  122.254343][ T5095]        do_syscall_64+0x40/0x110
[  122.259399][ T5095]        entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  122.265818][ T5095] 
[  122.265818][ T5095] other info that might help us debug this:
[  122.265818][ T5095] 
[  122.276118][ T5095] Chain exists of:
[  122.276118][ T5095]   rfcomm_mutex --> sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM --> rfcomm_ioctl_mutex
[  122.276118][ T5095] 
[  122.290984][ T5095]  Possible unsafe locking scenario:
[  122.290984][ T5095] 
[  122.298438][ T5095]        CPU0                    CPU1
[  122.303875][ T5095]        ----                    ----
[  122.309222][ T5095]   lock(rfcomm_ioctl_mutex);
[  122.313884][ T5095]                                lock(sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM);
[  122.322540][ T5095]                                lock(rfcomm_ioctl_mutex);
[  122.329718][ T5095]   lock(rfcomm_mutex);
[  122.333876][ T5095] 
[  122.333876][ T5095]  *** DEADLOCK ***
[  122.333876][ T5095] 
[  122.341996][ T5095] 2 locks held by syz-executor197/5095:
[  122.347517][ T5095]  #0: ffff888018fa9130 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: rfcomm_sock_ioctl+0xa3/0xe0
[  122.358916][ T5095]  #1: ffffffff8ed3da08 (rfcomm_ioctl_mutex){+.+.}-{3:3}, at: rfcomm_dev_ioctl+0x8b9/0x1c50
[  122.368994][ T5095] 
[  122.368994][ T5095] stack backtrace:
[  122.374962][ T5095] CPU: 1 PID: 5095 Comm: syz-executor197 Not tainted 6.7.0-rc5-syzkaller-01502-gf7dd48ea76be #0
[  122.385390][ T5095] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
[  122.395427][ T5095] Call Trace:
[  122.398692][ T5095]  <TASK>
[  122.401607][ T5095]  dump_stack_lvl+0xd9/0x1b0
[  122.406196][ T5095]  check_noncircular+0x317/0x400
[  122.411130][ T5095]  ? print_circular_bug+0x5c0/0x5c0
[  122.416318][ T5095]  ? __kernel_text_address+0xd/0x30
[  122.421502][ T5095]  ? unwind_get_return_address+0x45/0xe0
[  122.427119][ T5095]  ? lockdep_lock+0xc6/0x200
[  122.431698][ T5095]  ? hlock_class+0x130/0x130
[  122.436285][ T5095]  __lock_acquire+0x2433/0x3b20
[  122.441132][ T5095]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  122.447103][ T5095]  ? add_lock_to_list+0x17d/0x380
[  122.452118][ T5095]  lock_acquire+0x1ae/0x520
[  122.456612][ T5095]  ? rfcomm_dlc_exists+0x5b/0x190
[  122.461651][ T5095]  ? lock_sync+0x190/0x190
[  122.466151][ T5095]  ? __mutex_trylock_common+0xeb/0x250
[  122.471597][ T5095]  ? preempt_count_sub+0x160/0x160
[  122.476867][ T5095]  ? mutex_is_locked+0x40/0x40
[  122.481628][ T5095]  __mutex_lock+0x175/0x9d0
[  122.486120][ T5095]  ? rfcomm_dlc_exists+0x5b/0x190
[  122.491141][ T5095]  ? aa_get_newest_label+0x376/0x680
[  122.496430][ T5095]  ? rfcomm_dlc_exists+0x5b/0x190
[  122.501447][ T5095]  ? mutex_trylock+0x130/0x130
[  122.506199][ T5095]  ? reacquire_held_locks+0x4c0/0x4c0
[  122.511562][ T5095]  ? apparmor_capable+0x126/0x1e0
[  122.516592][ T5095]  ? rfcomm_dlc_exists+0x5b/0x190
[  122.521626][ T5095]  rfcomm_dlc_exists+0x5b/0x190
[  122.526466][ T5095]  rfcomm_dev_ioctl+0x999/0x1c50
[  122.531410][ T5095]  ? rfcomm_dev_state_change+0x170/0x170
[  122.537053][ T5095]  ? reacquire_held_locks+0x4c0/0x4c0
[  122.542438][ T5095]  ? mark_held_locks+0x9f/0xe0
[  122.547197][ T5095]  ? __local_bh_enable_ip+0xa4/0x120
[  122.552472][ T5095]  rfcomm_sock_ioctl+0xb0/0xe0
[  122.557228][ T5095]  sock_do_ioctl+0x113/0x270
[  122.561813][ T5095]  ? put_user_ifreq+0x140/0x140
[  122.566669][ T5095]  ? do_vfs_ioctl+0x379/0x1920
[  122.571449][ T5095]  ? vfs_fileattr_set+0xbf0/0xbf0
[  122.576551][ T5095]  sock_ioctl+0x22e/0x6b0
[  122.581139][ T5095]  ? br_ioctl_call+0xb0/0xb0
[  122.585717][ T5095]  ? restore_fpregs_from_fpstate+0xc1/0x1d0
[  122.591602][ T5095]  ? bpf_lsm_file_ioctl+0x9/0x10
[  122.596527][ T5095]  ? br_ioctl_call+0xb0/0xb0
[  122.601124][ T5095]  __x64_sys_ioctl+0x18f/0x210
[  122.605874][ T5095]  do_syscall_64+0x40/0x110
[  122.610384][ T5095]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  122.616271][ T5095] RIP: 0033:0x7fe5b9aefd49
[  122.620737][ T5095] 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
[  122.640422][ T5095] RSP: 002b:00007ffde47c3e28 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[pid  5095] ioctl(5, RFCOMMCREATEDEV, 0x20000100) = 0
[pid  5095] close(3)                    = -1 EBADF (Bad file descriptor)
[pid  5095] close(4)                    = 0
[pid  5095] close(5)                    = 0
[pid  5095] close(6)                    = -1 EBADF (Bad file descriptor)
[pid  5095] close(7)                    = -1 EBADF (Bad file descriptor)
[pid  5095] close(8)                    = -1 EBADF (Bad file descriptor)
[pid  5095] close(9)                    = -1 EBADF (Bad file descriptor)
[pid  5095] close(10)                   = -1 EBADF (Bad file descriptor)
[pid  5095] close(11)                   = -1 EBADF (Bad file descriptor)
[pid  5095] close(12)                   = -1 EBADF (Bad file descriptor)
[pid  5095] close(13)                   = -1 EBADF (Bad file descriptor)
[pid  5095] close(14)                   = -1 EBADF (Bad file descriptor)
[pid  5095] close(15)                   = -1 EBADF (Bad file descriptor)
[pid  5095] close(16)                   = -1 EBADF (Bad file descriptor)
[pid  5095] close(17)                   = -1 EBADF (Bad file descriptor)
[pid  5095] close(18)                   = -1 EBADF (Bad file descriptor)
[pid  5095] close(19)                   = -1 EBADF (Bad file descriptor)
[pid  5095] close(20)                   = -1 EBADF (Bad file descriptor)
[pid  5095] close(21)                   = -1 EBADF (Bad file descriptor)
[pid  5095] close(22)                   = -1 EBADF (Bad file descriptor)
[pid  5095] close(23)                   = -1 EBADF (Bad file descriptor)
[  122.648817][ T5095] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fe5b9aefd49
[  122.656874][ T5095] RDX: 0000000020000100 RSI: 00000000400452c8 RDI: 0000000000000005
[  122.664834][ T5095] RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000555500000000
[  122.672873][ T5095] R10: 0000555500000000 R11: 0000000000000246 R12: 00007ffde47c3e70
[  122.680839][ T5095] R13: 00007ffde47c3e80 R14: 000000000001c7f9 R15: 00007ffde47c3e40
[  122.688889][ T5095]  </TASK>
[pid  5095] close(24)                   = -1 EBADF (Bad file descriptor)
[pid  5095] close(25)                   = -1 EBADF (Bad file descriptor)
[pid  5095] close(26)                   = -1 EBADF (Bad file descriptor)
[pid  5095] close(27)                   = -1 EBADF (Bad file descriptor)
[pid  5095] close(28)                   = -1 EBADF (Bad file descriptor)
[pid  5095] close(29)                   = -1 EBADF (Bad file descriptor)
[pid  5095] exit_group(0)               = ?
[pid  5095] +++ exited with 0 +++
[pid  5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
[pid  5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5096 attached
 <unfinished ...>
[pid  5096] set_robust_list(0x55555598c6a0, 24) = 0
[pid  5065] <... clone resumed>, child_tidptr=0x55555598c690) = 12
[pid  5096] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5096] setpgid(0, 0)               = 0
[pid  5096] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5096] write(3, "1000", 4)         = 4
[pid  5096] close(3)                    = 0
[pid  5096] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  5096] setns(201, 0)               = 0
[pid  5096] socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM) = 4
[pid  5096] setns(3, 0)                 = 0
[pid  5096] close(3)                    = 0
[  124.881880][ T5066] Bluetooth: hci0: command 0x0405 tx timeout
[pid  5096] connect(4, {sa_family=AF_BLUETOOTH, rc_bdaddr=aa:aa:aa:aa:aa:00, rc_channel=8}, 10 <unfinished ...>
[pid  5065] kill(-12, SIGKILL)          = 0
[pid  5096] <... connect resumed>)      = ?
[pid  5065] kill(12, SIGKILL)           = 0
[pid  5096] +++ killed by SIGKILL +++
[pid  5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=12, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} ---
[pid  5065] restart_syscall(<... resuming interrupted kill ...>) = 0
[pid  5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5097 attached
, child_tidptr=0x55555598c690) = 13
[pid  5097] set_robust_list(0x55555598c6a0, 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