./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor726304658

<...>
Warning: Permanently added '10.128.1.22' (ED25519) to the list of known hosts.
execve("./syz-executor726304658", ["./syz-executor726304658"], 0x7ffd8c2f69d0 /* 10 vars */) = 0
brk(NULL)                               = 0x555555bd5000
brk(0x555555bd5d40)                     = 0x555555bd5d40
arch_prctl(ARCH_SET_FS, 0x555555bd53c0) = 0
set_tid_address(0x555555bd5690)         = 5057
set_robust_list(0x555555bd56a0, 24)     = 0
rseq(0x555555bd5ce0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor726304658", 4096) = 27
getrandom("\x0d\x05\x1d\x5f\x1a\x7a\xc9\x44", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x555555bd5d40
brk(0x555555bf6d40)                     = 0x555555bf6d40
brk(0x555555bf7000)                     = 0x555555bf7000
mprotect(0x7f7128153000, 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=0x555555bd5690) = 5058
./strace-static-x86_64: Process 5058 attached
[pid  5058] set_robust_list(0x555555bd56a0, 24) = 0
[pid  5058] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid  5058] socket(AF_BLUETOOTH, SOCK_RAW, BTPROTO_HCI) = 3
[pid  5058] openat(AT_FDCWD, "/dev/vhci", O_RDWR) = 4
[pid  5058] dup2(4, 202)                = 202
[pid  5058] close(4)                    = 0
[pid  5058] write(202, "\xff\x00", 2)   = 2
[pid  5058] read(202, "\xff\x00\x00\x00", 4) = 4
[pid  5058] rt_sigaction(SIGRT_1, {sa_handler=0x7f71280f4d80, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f71280e6400}, NULL, 8) = 0
[pid  5058] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5058] mmap(NULL, 8392704, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f712788f000
[pid  5058] mprotect(0x7f7127890000, 8388608, PROT_READ|PROT_WRITE) = 0
[pid  5058] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5058] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f712808f990, parent_tid=0x7f712808f990, exit_signal=0, stack=0x7f712788f000, stack_size=0x800300, tls=0x7f712808f6c0}./strace-static-x86_64: Process 5061 attached
 <unfinished ...>
[pid  5061] rseq(0x7f712808ffe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5058] <... clone3 resumed> => {parent_tid=[2]}, 88) = 2
[pid  5061] <... rseq resumed>)         = 0
[pid  5058] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5061] set_robust_list(0x7f712808f9a0, 24 <unfinished ...>
[pid  5058] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5061] <... set_robust_list resumed>) = 0
[pid  5058] ioctl(3, HCIDEVUP <unfinished ...>
[pid  5061] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5061] read(202, "\x01\x03\x0c\x00", 1024) = 4
[pid  5061] 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  5061] read(202, "\x01\x03\x10\x00", 1024) = 4
[pid  5061] 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  5061] read(202, "\x01\x01\x10\x00", 1024) = 4
[pid  5061] 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  5061] read(202, "\x01\x09\x10\x00", 1024) = 4
[pid  5061] 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  5061] read(202, "\x01\x05\x10\x00", 1024) = 4
[pid  5061] 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  5061] read(202, "\x01\x23\x0c\x00", 1024) = 4
[pid  5061] 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
[   92.669506][ T5059] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1
[   92.688124][ T5059] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9
[   92.699973][ T5059] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9
[pid  5061] read(202, "\x01\x14\x0c\x00", 1024) = 4
[pid  5061] 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  5061] read(202, "\x01\x25\x0c\x00", 1024) = 4
[pid  5061] 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  5061] read(202, "\x01\x38\x0c\x00", 1024) = 4
[   92.732108][ T5062] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4
[   92.761449][ T5062] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3
[pid  5061] 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  5061] read(202, "\x01\x39\x0c\x00", 1024) = 4
[pid  5061] 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  5061] read(202, "\x01\x16\x0c\x02\x00\x7d", 1024) = 6
[pid  5061] 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  5058] <... ioctl resumed>, 0)     = -1 EALREADY (Operation already in progress)
[pid  5061] read(202,  <unfinished ...>
[pid  5058] ioctl(3, HCISETSCAN <unfinished ...>
[pid  5061] <... read resumed>"\x01\x1a\x0c\x01\x02", 1024) = 5
[   92.780303][ T5062] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2
[pid  5061] 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  5061] rt_sigprocmask(SIG_BLOCK, ~[RT_1], NULL, 8) = 0
[pid  5058] <... ioctl resumed>, 0x7ffdde9bfe6c) = 0
[pid  5061] madvise(0x7f712788f000, 8372224, MADV_DONTNEED) = 0
[pid  5058] 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  5061] exit(0 <unfinished ...>
[pid  5058] <... writev resumed>)       = 13
[pid  5061] <... exit resumed>)         = ?
[pid  5058] 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 <unfinished ...>
[pid  5061] +++ exited with 0 +++
[pid  5058] <... writev resumed>)       = 14
[pid  5058] 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  5058] 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  5058] close(3)                    = 0
[pid  5058] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5058] setsid()                    = 1
[pid  5058] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  5058] dup2(3, 201)                = 201
[pid  5058] close(3)                    = 0
[pid  5058] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid  5058] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid  5058] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid  5058] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid  5058] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid  5058] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid  5058] unshare(CLONE_NEWNS)        = 0
[pid  5058] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[pid  5058] unshare(CLONE_NEWIPC)       = 0
[pid  5058] unshare(CLONE_NEWCGROUP)    = 0
[pid  5058] unshare(CLONE_NEWUTS)       = 0
[pid  5058] unshare(CLONE_SYSVSEM)      = 0
[pid  5058] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3
[pid  5058] write(3, "16777216", 8)     = 8
[pid  5058] close(3)                    = 0
[pid  5058] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3
[pid  5058] write(3, "536870912", 9)    = 9
[pid  5058] close(3)                    = 0
[pid  5058] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3
[pid  5058] write(3, "1024", 4)         = 4
[pid  5058] close(3)                    = 0
[pid  5058] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3
[pid  5058] write(3, "8192", 4)         = 4
[pid  5058] close(3)                    = 0
[pid  5058] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3
[pid  5058] write(3, "1024", 4)         = 4
[pid  5058] close(3)                    = 0
[pid  5058] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3
[pid  5058] write(3, "1024", 4)         = 4
[pid  5058] close(3)                    = 0
[pid  5058] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3
[pid  5058] write(3, "1024 1048576 500 1024", 21) = 21
[pid  5058] close(3)                    = 0
[pid  5058] getpid()                    = 1
[pid  5058] 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  5058] 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  5058] unshare(CLONE_NEWNET)       = 0
[pid  5058] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid  5058] write(3, "0 65535", 7)      = 7
[pid  5058] close(3)                    = 0
[pid  5058] mkdir("/dev/binderfs", 0777) = 0
[pid  5058] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0
[pid  5058] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5064 attached
, child_tidptr=0x555555bd5690) = 3
[pid  5064] set_robust_list(0x555555bd56a0, 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
[   94.862017][ T4459] Bluetooth: hci0: command 0x0409 tx timeout
[   96.941291][ T4459] Bluetooth: hci0: command 0x041b tx timeout
[   97.183667][   T54] cfg80211: failed to load regulatory.db
[pid  5064] connect(4, {sa_family=AF_BLUETOOTH, rc_bdaddr=ff:ff:ff:ff:ff:ff, rc_channel=2}, 10 <unfinished ...>
[pid  5058] kill(-3, SIGKILL <unfinished ...>
[pid  5064] <... connect resumed>)      = ?
[pid  5058] <... kill resumed>)         = 0
[pid  5058] kill(3, SIGKILL)            = 0
[pid  5064] +++ killed by SIGKILL +++
[pid  5058] --- 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  5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5066 attached
, child_tidptr=0x555555bd5690) = 4
[pid  5066] set_robust_list(0x555555bd56a0, 24) = 0
[pid  5066] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5066] setpgid(0, 0)               = 0
[pid  5066] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5066] write(3, "1000", 4)         = 4
[pid  5066] close(3)                    = 0
[pid  5066] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  5066] setns(201, 0)               = 0
[pid  5066] socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM) = 4
[pid  5066] setns(3, 0)                 = 0
[pid  5066] close(3)                    = 0
[   99.021293][ T4459] Bluetooth: hci0: command 0x040f tx timeout
[  101.101310][ T4459] Bluetooth: hci0: command 0x0419 tx timeout
[  103.181228][ T4459] Bluetooth: hci0: command 0x0405 tx timeout
[pid  5066] connect(4, {sa_family=AF_BLUETOOTH, rc_bdaddr=ff:ff:ff:ff:ff:ff, rc_channel=2}, 10 <unfinished ...>
[pid  5058] kill(-4, SIGKILL)           = 0
[pid  5066] <... connect resumed>)      = ?
[pid  5058] kill(4, SIGKILL)            = 0
[pid  5066] +++ killed by SIGKILL +++
[pid  5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=4, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} ---
[pid  5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5068 attached
 <unfinished ...>
[pid  5068] set_robust_list(0x555555bd56a0, 24 <unfinished ...>
[pid  5058] <... clone resumed>, child_tidptr=0x555555bd5690) = 5
[pid  5068] <... set_robust_list resumed>) = 0
[pid  5068] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5068] setpgid(0, 0)               = 0
[pid  5068] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5068] write(3, "1000", 4)         = 4
[pid  5068] close(3)                    = 0
[pid  5068] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  5068] setns(201, 0)               = 0
[pid  5068] socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM) = 4
[pid  5068] setns(3, 0)                 = 0
[pid  5068] close(3)                    = 0
[pid  5068] connect(4, {sa_family=AF_BLUETOOTH, rc_bdaddr=ff:ff:ff:ff:ff:ff, rc_channel=2}, 10 <unfinished ...>
[pid  5058] kill(-5, SIGKILL <unfinished ...>
[pid  5068] <... connect resumed>)      = ?
[pid  5058] <... kill resumed>)         = 0
[pid  5058] kill(5, SIGKILL)            = 0
[pid  5068] +++ killed by SIGKILL +++
[pid  5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=1 /* 0.01 s */} ---
[pid  5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5071 attached
, child_tidptr=0x555555bd5690) = 6
[pid  5071] set_robust_list(0x555555bd56a0, 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
[pid  5071] connect(4, {sa_family=AF_BLUETOOTH, rc_bdaddr=ff:ff:ff:ff:ff:ff, rc_channel=2}, 10 <unfinished ...>
[pid  5058] kill(-6, SIGKILL <unfinished ...>
[pid  5071] <... connect resumed>)      = ?
[pid  5058] <... kill resumed>)         = 0
[pid  5058] kill(6, SIGKILL <unfinished ...>
[pid  5071] +++ killed by SIGKILL +++
[pid  5058] <... kill resumed>)         = 0
[pid  5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=6, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} ---
[pid  5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5074 attached
, child_tidptr=0x555555bd5690) = 7
[pid  5074] set_robust_list(0x555555bd56a0, 24) = 0
[pid  5074] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5074] setpgid(0, 0)               = 0
[pid  5074] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5074] write(3, "1000", 4)         = 4
[pid  5074] close(3)                    = 0
[pid  5074] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  5074] setns(201, 0)               = 0
[pid  5074] socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM) = 4
[pid  5074] setns(3, 0)                 = 0
[pid  5074] close(3)                    = 0
[pid  5074] connect(4, {sa_family=AF_BLUETOOTH, rc_bdaddr=ff:ff:ff:ff:ff:ff, rc_channel=2}, 10 <unfinished ...>
[pid  5058] kill(-7, SIGKILL)           = 0
[pid  5058] kill(7, SIGKILL <unfinished ...>
[pid  5074] <... connect resumed>)      = ?
[pid  5058] <... kill resumed>)         = 0
[pid  5074] +++ killed by SIGKILL +++
[pid  5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=7, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} ---
[pid  5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5076 attached
, child_tidptr=0x555555bd5690) = 8
[pid  5076] set_robust_list(0x555555bd56a0, 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=ff:ff:ff:ff:ff:ff, rc_channel=2}, 10 <unfinished ...>
[pid  5058] kill(-8, SIGKILL)           = 0
[pid  5058] kill(8, SIGKILL <unfinished ...>
[pid  5076] <... connect resumed>)      = ?
[pid  5058] <... kill resumed>)         = 0
[pid  5076] +++ killed by SIGKILL +++
[pid  5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=8, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} ---
[pid  5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5079 attached
, child_tidptr=0x555555bd5690) = 9
[pid  5079] set_robust_list(0x555555bd56a0, 24) = 0
[pid  5079] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5079] setpgid(0, 0)               = 0
[pid  5079] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5079] write(3, "1000", 4)         = 4
[pid  5079] close(3)                    = 0
[pid  5079] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  5079] setns(201, 0)               = 0
[pid  5079] socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM) = 4
[pid  5079] setns(3, 0)                 = 0
[pid  5079] close(3)                    = 0
[pid  5079] connect(4, {sa_family=AF_BLUETOOTH, rc_bdaddr=ff:ff:ff:ff:ff:ff, rc_channel=2}, 10 <unfinished ...>
[pid  5058] kill(-9, SIGKILL <unfinished ...>
[pid  5079] <... connect resumed>)      = ?
[pid  5058] <... kill resumed>)         = 0
[pid  5058] kill(9, SIGKILL <unfinished ...>
[pid  5079] +++ killed by SIGKILL +++
[pid  5058] <... kill resumed>)         = 0
[pid  5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=9, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} ---
[pid  5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5087 attached
 <unfinished ...>
[pid  5087] set_robust_list(0x555555bd56a0, 24) = 0
[pid  5058] <... clone resumed>, child_tidptr=0x555555bd5690) = 10
[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
[pid  5087] connect(4, {sa_family=AF_BLUETOOTH, rc_bdaddr=ff:ff:ff:ff:ff:ff, rc_channel=2}, 10 <unfinished ...>
[pid  5058] kill(-10, SIGKILL)          = 0
[pid  5058] kill(10, SIGKILL <unfinished ...>
[pid  5087] <... connect resumed>)      = ?
[pid  5058] <... kill resumed>)         = 0
[pid  5087] +++ killed by SIGKILL +++
[pid  5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=10, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} ---
[pid  5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555bd5690) = 11
./strace-static-x86_64: Process 5089 attached
[pid  5089] set_robust_list(0x555555bd56a0, 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) = -1 ECONNREFUSED (Connection refused)
[pid  5089] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  5089] setns(201, 0)               = 0
[pid  5089] socket(AF_BLUETOOTH, SOCK_RAW, BTPROTO_RFCOMM) = 5
[pid  5089] setns(3, 0)                 = 0
[pid  5089] close(3)                    = 0
[pid  5089] openat(AT_FDCWD, "blkio.bfq.io_serviced", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
[pid  5089] 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  5089] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 3, 0) = 0x20000000
[pid  5089] preadv(3, 0x200015c0, 5, 0) = 16776704
[  134.222055][ T5089] 
[  134.224422][ T5089] ======================================================
[  134.231439][ T5089] WARNING: possible circular locking dependency detected
[  134.238460][ T5089] 6.6.0-syzkaller-10135-g016b9332a334 #0 Not tainted
[  134.245138][ T5089] ------------------------------------------------------
[  134.252156][ T5089] syz-executor726/5089 is trying to acquire lock:
[  134.258602][ T5089] ffffffff8ed29c68 (rfcomm_mutex){+.+.}-{3:3}, at: rfcomm_dlc_exists+0x5b/0x190
[  134.267716][ T5089] 
[  134.267716][ T5089] but task is already holding lock:
[  134.275083][ T5089] ffffffff8ed2ebe8 (rfcomm_ioctl_mutex){+.+.}-{3:3}, at: rfcomm_dev_ioctl+0x8b9/0x1c50
[  134.284766][ T5089] 
[  134.284766][ T5089] which lock already depends on the new lock.
[  134.284766][ T5089] 
[  134.295163][ T5089] 
[  134.295163][ T5089] the existing dependency chain (in reverse order) is:
[  134.304176][ T5089] 
[  134.304176][ T5089] -> #3 (rfcomm_ioctl_mutex){+.+.}-{3:3}:
[  134.312096][ T5089]        __mutex_lock+0x181/0x1340
[  134.317233][ T5089]        rfcomm_dev_ioctl+0x8b9/0x1c50
[  134.322708][ T5089]        rfcomm_sock_ioctl+0xb0/0xe0
[  134.328011][ T5089]        sock_do_ioctl+0x113/0x270
[  134.333155][ T5089]        sock_ioctl+0x22e/0x6b0
[  134.338028][ T5089]        __x64_sys_ioctl+0x18f/0x210
[  134.343326][ T5089]        do_syscall_64+0x3f/0x110
[  134.348366][ T5089]        entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  134.354811][ T5089] 
[  134.354811][ T5089] -> #2 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}:
[  134.364298][ T5089]        lock_sock_nested+0x3a/0xf0
[  134.369515][ T5089]        rfcomm_sk_state_change+0x6d/0x3a0
[  134.375339][ T5089]        __rfcomm_dlc_close+0x285/0x720
[  134.380924][ T5089]        rfcomm_dlc_close+0x1e7/0x240
[  134.386307][ T5089]        __rfcomm_sock_close+0xa7/0x230
[  134.391868][ T5089]        rfcomm_sock_shutdown+0xd1/0x230
[  134.397511][ T5089]        rfcomm_sock_release+0x5d/0x140
[  134.403067][ T5089]        __sock_release+0xae/0x260
[  134.408194][ T5089]        sock_close+0x1c/0x20
[  134.412887][ T5089]        __fput+0x270/0xbb0
[  134.417504][ T5089]        task_work_run+0x14d/0x240
[  134.422648][ T5089]        do_exit+0xa92/0x2a20
[  134.427353][ T5089]        do_group_exit+0xd4/0x2a0
[  134.432403][ T5089]        get_signal+0x23ba/0x2790
[  134.437447][ T5089]        arch_do_signal_or_restart+0x90/0x7f0
[  134.443544][ T5089]        exit_to_user_mode_prepare+0x11f/0x240
[  134.449730][ T5089]        syscall_exit_to_user_mode+0x1d/0x60
[  134.455748][ T5089]        do_syscall_64+0x4b/0x110
[  134.460783][ T5089]        entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  134.467219][ T5089] 
[  134.467219][ T5089] -> #1 (&d->lock){+.+.}-{3:3}:
[  134.474263][ T5089]        __mutex_lock+0x181/0x1340
[  134.479397][ T5089]        __rfcomm_dlc_close+0x231/0x720
[  134.484961][ T5089]        rfcomm_dlc_close+0x1e7/0x240
[  134.490355][ T5089]        __rfcomm_sock_close+0xa7/0x230
[  134.495909][ T5089]        rfcomm_sock_shutdown+0xd1/0x230
[  134.501567][ T5089]        rfcomm_sock_release+0x5d/0x140
[  134.507143][ T5089]        __sock_release+0xae/0x260
[  134.512273][ T5089]        sock_close+0x1c/0x20
[  134.516964][ T5089]        __fput+0x270/0xbb0
[  134.521483][ T5089]        task_work_run+0x14d/0x240
[  134.526614][ T5089]        do_exit+0xa92/0x2a20
[  134.531313][ T5089]        do_group_exit+0xd4/0x2a0
[  134.536367][ T5089]        get_signal+0x23ba/0x2790
[  134.541401][ T5089]        arch_do_signal_or_restart+0x90/0x7f0
[  134.547502][ T5089]        exit_to_user_mode_prepare+0x11f/0x240
[  134.553670][ T5089]        syscall_exit_to_user_mode+0x1d/0x60
[  134.559674][ T5089]        do_syscall_64+0x4b/0x110
[  134.564724][ T5089]        entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  134.571180][ T5089] 
[  134.571180][ T5089] -> #0 (rfcomm_mutex){+.+.}-{3:3}:
[  134.578581][ T5089]        __lock_acquire+0x2e3d/0x5de0
[  134.583971][ T5089]        lock_acquire+0x1ae/0x510
[  134.589013][ T5089]        __mutex_lock+0x181/0x1340
[  134.594143][ T5089]        rfcomm_dlc_exists+0x5b/0x190
[  134.599530][ T5089]        rfcomm_dev_ioctl+0x999/0x1c50
[  134.605009][ T5089]        rfcomm_sock_ioctl+0xb0/0xe0
[  134.610318][ T5089]        sock_do_ioctl+0x113/0x270
[  134.615457][ T5089]        sock_ioctl+0x22e/0x6b0
[  134.620349][ T5089]        __x64_sys_ioctl+0x18f/0x210
[  134.625660][ T5089]        do_syscall_64+0x3f/0x110
[  134.630723][ T5089]        entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  134.637163][ T5089] 
[  134.637163][ T5089] other info that might help us debug this:
[  134.637163][ T5089] 
[  134.647386][ T5089] Chain exists of:
[  134.647386][ T5089]   rfcomm_mutex --> sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM --> rfcomm_ioctl_mutex
[  134.647386][ T5089] 
[  134.662170][ T5089]  Possible unsafe locking scenario:
[  134.662170][ T5089] 
[  134.669619][ T5089]        CPU0                    CPU1
[  134.674985][ T5089]        ----                    ----
[  134.680353][ T5089]   lock(rfcomm_ioctl_mutex);
[  134.685030][ T5089]                                lock(sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM);
[  134.693725][ T5089]                                lock(rfcomm_ioctl_mutex);
[  134.700924][ T5089]   lock(rfcomm_mutex);
[  134.705082][ T5089] 
[  134.705082][ T5089]  *** DEADLOCK ***
[  134.705082][ T5089] 
[  134.713241][ T5089] 2 locks held by syz-executor726/5089:
[  134.718788][ T5089]  #0: ffff88801c921130 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: rfcomm_sock_ioctl+0xa3/0xe0
[  134.730219][ T5089]  #1: ffffffff8ed2ebe8 (rfcomm_ioctl_mutex){+.+.}-{3:3}, at: rfcomm_dev_ioctl+0x8b9/0x1c50
[  134.740393][ T5089] 
[  134.740393][ T5089] stack backtrace:
[  134.746285][ T5089] CPU: 0 PID: 5089 Comm: syz-executor726 Not tainted 6.6.0-syzkaller-10135-g016b9332a334 #0
[  134.756361][ T5089] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[  134.766469][ T5089] Call Trace:
[  134.769754][ T5089]  <TASK>
[  134.772695][ T5089]  dump_stack_lvl+0xd9/0x1b0
[  134.777310][ T5089]  check_noncircular+0x311/0x3f0
[  134.782277][ T5089]  ? print_circular_bug+0x750/0x750
[  134.787498][ T5089]  ? is_bpf_text_address+0x94/0x1a0
[  134.792728][ T5089]  ? kernel_text_address+0x85/0xf0
[  134.797872][ T5089]  ? arch_stack_walk+0x112/0x170
[  134.802831][ T5089]  __lock_acquire+0x2e3d/0x5de0
[  134.807711][ T5089]  ? lockdep_hardirqs_on_prepare+0x410/0x410
[  134.813713][ T5089]  ? save_trace+0x4e/0xb30
[  134.818156][ T5089]  ? _find_first_zero_bit+0x94/0xb0
[  134.823434][ T5089]  ? add_lock_to_list+0x17d/0x380
[  134.828481][ T5089]  lock_acquire+0x1ae/0x510
[  134.833021][ T5089]  ? rfcomm_dlc_exists+0x5b/0x190
[  134.838067][ T5089]  ? lock_sync+0x190/0x190
[  134.842531][ T5089]  ? asm_sysvec_call_function_single+0x1a/0x20
[  134.848721][ T5089]  ? preempt_count_sub+0x150/0x150
[  134.853846][ T5089]  ? asm_sysvec_call_function_single+0x1a/0x20
[  134.860040][ T5089]  __mutex_lock+0x181/0x1340
[  134.864665][ T5089]  ? rfcomm_dlc_exists+0x5b/0x190
[  134.869716][ T5089]  ? rfcomm_dlc_exists+0x5b/0x190
[  134.874760][ T5089]  ? lock_acquire+0x1ef/0x510
[  134.879465][ T5089]  ? find_held_lock+0x2d/0x110
[  134.884260][ T5089]  ? mutex_lock_io_nested+0x11a0/0x11a0
[  134.889839][ T5089]  ? __might_fault+0x13f/0x1a0
[  134.894625][ T5089]  ? reacquire_held_locks+0x4b0/0x4b0
[  134.900038][ T5089]  ? preempt_count_sub+0x150/0x150
[  134.905168][ T5089]  ? apparmor_capable+0x1da/0x4e0
[  134.910218][ T5089]  ? rfcomm_dlc_exists+0x5b/0x190
[  134.915265][ T5089]  rfcomm_dlc_exists+0x5b/0x190
[  134.920143][ T5089]  rfcomm_dev_ioctl+0x999/0x1c50
[  134.925115][ T5089]  ? rfcomm_dev_state_change+0x170/0x170
[  134.930802][ T5089]  ? reacquire_held_locks+0x4b0/0x4b0
[  134.936218][ T5089]  ? mark_held_locks+0x9f/0xe0
[  134.941020][ T5089]  ? __local_bh_enable_ip+0xa4/0x120
[  134.946339][ T5089]  rfcomm_sock_ioctl+0xb0/0xe0
[  134.951144][ T5089]  sock_do_ioctl+0x113/0x270
[  134.955781][ T5089]  ? put_user_ifreq+0x140/0x140
[  134.960663][ T5089]  ? do_vfs_ioctl+0x379/0x1920
[  134.965456][ T5089]  ? vfs_fileattr_set+0xbf0/0xbf0
[  134.970513][ T5089]  sock_ioctl+0x22e/0x6b0
[  134.974876][ T5089]  ? br_ioctl_call+0xb0/0xb0
[  134.979504][ T5089]  ? bpf_lsm_file_ioctl+0x9/0x10
[  134.984479][ T5089]  ? br_ioctl_call+0xb0/0xb0
[  134.989118][ T5089]  __x64_sys_ioctl+0x18f/0x210
[  134.993909][ T5089]  do_syscall_64+0x3f/0x110
[  134.998451][ T5089]  entry_SYSCALL_64_after_hwframe+0x63/0x6b
[  135.004388][ T5089] RIP: 0033:0x7f71280ced89
[  135.008818][ T5089] 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
[  135.028458][ T5089] RSP: 002b:00007ffdde9bfe28 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  135.036891][ T5089] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f71280ced89
[  135.044877][ T5089] RDX: 0000000020000100 RSI: 00000000400452c8 RDI: 0000000000000005
[  135.052858][ T5089] RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000000000000000
[  135.060839][ T5089] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdde9bfe80
[pid  5089] ioctl(5, RFCOMMCREATEDEV, 0x20000100) = 0
[pid  5089] close(3)                    = 0
[pid  5089] close(4)                    = 0
[pid  5089] close(5)                    = 0
[pid  5089] close(6)                    = -1 EBADF (Bad file descriptor)
[pid  5089] close(7)                    = -1 EBADF (Bad file descriptor)
[pid  5089] close(8)                    = -1 EBADF (Bad file descriptor)
[pid  5089] close(9)                    = -1 EBADF (Bad file descriptor)
[pid  5089] close(10)                   = -1 EBADF (Bad file descriptor)
[pid  5089] close(11)                   = -1 EBADF (Bad file descriptor)
[pid  5089] close(12)                   = -1 EBADF (Bad file descriptor)
[pid  5089] close(13)                   = -1 EBADF (Bad file descriptor)
[pid  5089] close(14)                   = -1 EBADF (Bad file descriptor)
[pid  5089] close(15)                   = -1 EBADF (Bad file descriptor)
[pid  5089] close(16)                   = -1 EBADF (Bad file descriptor)
[pid  5089] close(17)                   = -1 EBADF (Bad file descriptor)
[pid  5089] close(18)                   = -1 EBADF (Bad file descriptor)
[pid  5089] close(19)                   = -1 EBADF (Bad file descriptor)
[pid  5089] close(20)                   = -1 EBADF (Bad file descriptor)
[  135.068816][ T5089] R13: 00007ffdde9bfe90 R14: 000000000001f5a0 R15: 00007ffdde9bfe50
[  135.076801][ T5089]  </TASK>
[pid  5089] close(21)                   = -1 EBADF (Bad file descriptor)
[pid  5089] close(22)                   = -1 EBADF (Bad file descriptor)
[pid  5089] close(23)                   = -1 EBADF (Bad file descriptor)
[pid  5089] close(24)                   = -1 EBADF (Bad file descriptor)
[pid  5089] close(25)                   = -1 EBADF (Bad file descriptor)
[pid  5089] close(26)                   = -1 EBADF (Bad file descriptor)
[pid  5089] close(27)                   = -1 EBADF (Bad file descriptor)
[pid  5089] close(28)                   = -1 EBADF (Bad file descriptor)
[pid  5089] close(29)                   = -1 EBADF (Bad file descriptor)
[pid  5089] exit_group(0)               = ?
[pid  5089] +++ exited with 0 +++
[pid  5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11, si_uid=0, si_status=0, si_utime=0, si_stime=55 /* 0.55 s */} ---
[pid  5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555bd5690) = 12
./strace-static-x86_64: Process 5091 attached
[pid  5091] set_robust_list(0x555555bd56a0, 24) = 0
[pid  5091] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5091] setpgid(0, 0)               = 0
[pid  5091] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5091] write(3, "1000", 4)         = 4
[pid  5091] close(3)                    = 0
[pid  5091] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  5091] setns(201, 0)               = 0
[pid  5091] socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM) = 4
[pid  5091] setns(3, 0)                 = 0
[pid  5091] close(3)                    = 0
[  137.341210][ T4459] Bluetooth: hci0: command 0x0405 tx timeout
[pid  5091] connect(4, {sa_family=AF_BLUETOOTH, rc_bdaddr=ff:ff:ff:ff:ff:ff, rc_channel=2}, 10 <unfinished ...>
[pid  5058] kill(-12, SIGKILL)          = 0
[pid  5091] <... connect resumed>)      = ?
[pid  5058] kill(12, SIGKILL <unfinished ...>
[pid  5091] +++ killed by SIGKILL +++
[pid  5058] <... kill resumed>)         = 0
[pid  5058] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=12, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} ---
[pid  5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555bd5690) = 13
./strace-static-x86_64: Process 5092 attached
[pid  5092] set_robust_list(0x555555bd56a0, 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