./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4136189065

<...>
DUID 00:04:8a:84:28:17:ce:93:6d:14:d5:a0:40:fa:67:36:71:42
forked to background, child pid 4667
[   32.905258][ T4668] 8021q: adding VLAN 0 to HW filter on device bond0
[   32.915705][ T4668] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK

syzkaller
Warning: Permanently added '10.128.0.80' (ECDSA) to the list of known hosts.
execve("./syz-executor4136189065", ["./syz-executor4136189065"], 0x7fff5fe93690 /* 10 vars */) = 0
brk(NULL)                               = 0x555556847000
brk(0x555556847c40)                     = 0x555556847c40
arch_prctl(ARCH_SET_FS, 0x555556847300) = 0
uname({sysname="Linux", nodename="syzkaller", ...}) = 0
set_tid_address(0x5555568475d0)         = 4998
set_robust_list(0x5555568475e0, 24)     = 0
rt_sigaction(SIGRTMIN, {sa_handler=0x7f2e36458dc0, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7f2e36459490}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {sa_handler=0x7f2e36458e60, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f2e36459490}, NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor4136189065", 4096) = 28
brk(0x555556868c40)                     = 0x555556868c40
brk(0x555556869000)                     = 0x555556869000
mprotect(0x7f2e3651a000, 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 4999 attached
, child_tidptr=0x5555568475d0) = 4999
[pid  4999] set_robust_list(0x5555568475e0, 24) = 0
[pid  4999] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid  4999] socket(AF_BLUETOOTH, SOCK_RAW, BTPROTO_HCI) = 3
[pid  4999] openat(AT_FDCWD, "/dev/vhci", O_RDWR) = 4
[pid  4999] dup2(4, 202)                = 202
[pid  4999] close(4)                    = 0
[pid  4999] write(202, "\xff\x00", 2)   = 2
[pid  4999] read(202, "\xff\x00\x00\x00", 4) = 4
[pid  4999] mmap(NULL, 8392704, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f2e35c48000
[pid  4999] mprotect(0x7f2e35c49000, 8388608, PROT_READ|PROT_WRITE) = 0
[pid  4999] clone(child_stack=0x7f2e364483f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[2], tls=0x7f2e36448700, child_tidptr=0x7f2e364489d0) = 2
[pid  4999] ioctl(3, HCIDEVUP./strace-static-x86_64: Process 5002 attached
 <unfinished ...>
[pid  5002] set_robust_list(0x7f2e364489e0, 24) = 0
[pid  5002] read(202, "\x01\x03\x0c\x00", 1024) = 4
[pid  5002] 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  5002] read(202, "\x01\x03\x10\x00", 1024) = 4
[pid  5002] 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  5002] read(202, "\x01\x01\x10\x00", 1024) = 4
[pid  5002] 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  5002] read(202, "\x01\x09\x10\x00", 1024) = 4
[pid  5002] 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  5002] read(202, "\x01\x05\x10\x00", 1024) = 4
[pid  5002] 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  5002] read(202, "\x01\x23\x0c\x00", 1024) = 4
[pid  5002] 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  5002] read(202, "\x01\x14\x0c\x00", 1024) = 4
[pid  5002] 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  5002] read(202, "\x01\x25\x0c\x00", 1024) = 4
[pid  5002] 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
syzkaller login: [   68.731304][ T5001] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1
[   68.740421][ T5001] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9
[   68.749090][ T5001] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9
[   68.761507][ T5001] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4
[   68.770725][   T48] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3
[pid  5002] read(202, "\x01\x38\x0c\x00", 1024) = 4
[pid  5002] 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  5002] read(202, "\x01\x39\x0c\x00", 1024) = 4
[pid  5002] 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  5002] read(202, "\x01\x16\x0c\x02\x00\x7d", 1024) = 6
[pid  5002] 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  4999] <... ioctl resumed>, 0)     = -1 EALREADY (Operation already in progress)
[pid  5002] read(202,  <unfinished ...>
[pid  4999] ioctl(3, HCISETSCAN <unfinished ...>
[pid  5002] <... read resumed>"\x01\x1a\x0c\x01\x02", 1024) = 5
[pid  5002] 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  4999] <... ioctl resumed>, 0x7ffc15029a50) = 0
[pid  5002] madvise(0x7f2e35c48000, 8372224, MADV_DONTNEED <unfinished ...>
[pid  4999] 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  5002] <... madvise resumed>)      = 0
[pid  4999] <... writev resumed>)       = 13
[pid  4999] 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  5002] exit(0)                     = ?
[pid  4999] <... writev resumed>)       = 14
[pid  4999] 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 <unfinished ...>
[pid  5002] +++ exited with 0 +++
[pid  4999] <... writev resumed>)       = 14
[pid  4999] 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  4999] close(3)                    = 0
[pid  4999] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  4999] setsid()                    = 1
[pid  4999] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY) = 3
[pid  4999] dup2(3, 201)                = 201
[pid  4999] close(3)                    = 0
[pid  4999] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid  4999] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid  4999] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid  4999] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid  4999] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid  4999] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid  4999] unshare(CLONE_NEWNS)        = 0
[pid  4999] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[pid  4999] unshare(CLONE_NEWIPC)       = 0
[pid  4999] unshare(CLONE_NEWCGROUP)    = 0
[pid  4999] unshare(CLONE_NEWUTS)       = 0
[pid  4999] unshare(CLONE_SYSVSEM)      = 0
[pid  4999] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3
[pid  4999] write(3, "16777216", 8)     = 8
[pid  4999] close(3)                    = 0
[pid  4999] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3
[pid  4999] write(3, "536870912", 9)    = 9
[pid  4999] close(3)                    = 0
[pid  4999] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3
[pid  4999] write(3, "1024", 4)         = 4
[pid  4999] close(3)                    = 0
[pid  4999] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3
[pid  4999] write(3, "8192", 4)         = 4
[pid  4999] close(3)                    = 0
[   68.779303][   T48] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2
[pid  4999] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3
[pid  4999] write(3, "1024", 4)         = 4
[pid  4999] close(3)                    = 0
[pid  4999] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3
[pid  4999] write(3, "1024", 4)         = 4
[pid  4999] close(3)                    = 0
[pid  4999] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3
[pid  4999] write(3, "1024 1048576 500 1024", 21) = 21
[pid  4999] close(3)                    = 0
[pid  4999] getpid()                    = 1
[pid  4999] 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  4999] 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  4999] unshare(CLONE_NEWNET)       = 0
[pid  4999] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid  4999] write(3, "0 65535", 7)      = 7
[pid  4999] close(3)                    = 0
[pid  4999] mkdir("/dev/binderfs", 0777) = 0
[pid  4999] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0
[pid  4999] symlink("/dev/binderfs", "./binderfs") = 0
[pid  4999] futex(0x7f2e3652040c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4999] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f2e35c27000
[pid  4999] mprotect(0x7f2e35c28000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  4999] clone(child_stack=0x7f2e35c473f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5004 attached
 <unfinished ...>
[pid  5004] set_robust_list(0x7f2e35c479e0, 24) = 0
[pid  5004] futex(0x7f2e36520408, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  4999] <... clone resumed>, parent_tid=[3], tls=0x7f2e35c47700, child_tidptr=0x7f2e35c479d0) = 3
[pid  4999] futex(0x7f2e36520408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5004] <... futex resumed>)        = 0
[pid  4999] <... futex resumed>)        = 1
[pid  5004] openat(AT_FDCWD, "/proc/self/ns/net", O_RDONLY <unfinished ...>
[pid  4999] futex(0x7f2e3652040c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5004] <... openat resumed>)       = 3
[pid  5004] setns(201, 0)               = 0
[pid  5004] socket(AF_BLUETOOTH, SOCK_SEQPACKET, BTPROTO_SCO) = 4
[pid  5004] setns(3, 0)                 = 0
[pid  5004] close(3)                    = 0
[pid  5004] futex(0x7f2e3652040c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  4999] <... futex resumed>)        = 0
[pid  4999] futex(0x7f2e36520408, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5004] connect(4, {sa_family=AF_BLUETOOTH, sco_bdaddr=aa:aa:aa:aa:aa:00}, 8 <unfinished ...>
[pid  4999] <... futex resumed>)        = 0
[pid  4999] futex(0x7f2e3652040c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  4999] futex(0x7f2e3652041c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4999] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f2e35c06000
[pid  4999] mprotect(0x7f2e35c07000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  4999] clone(child_stack=0x7f2e35c263f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5005 attached
, parent_tid=[4], tls=0x7f2e35c26700, child_tidptr=0x7f2e35c269d0) = 4
[pid  4999] futex(0x7f2e36520418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4999] futex(0x7f2e3652041c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=550000000} <unfinished ...>
[pid  5005] set_robust_list(0x7f2e35c269e0, 24) = 0
[pid  5005] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128) = 3
[pid  5005] futex(0x7f2e3652041c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  4999] <... futex resumed>)        = 0
[pid  4999] futex(0x7f2e36520418, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  4999] futex(0x7f2e3652041c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=550000000} <unfinished ...>
[pid  5005] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="percpu_alloc_percpu", prog_fd=3}}, 16) = 5
[pid  5005] futex(0x7f2e3652041c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  4999] <... futex resumed>)        = 0
[pid  5005] <... futex resumed>)        = 1
[pid  5005] futex(0x7f2e36520418, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  4999] exit_group(1 <unfinished ...>
[pid  5005] <... futex resumed>)        = ?
[pid  5004] <... connect resumed>)      = ?
[pid  4999] <... exit_group resumed>)   = ?
[pid  5005] +++ exited with 1 +++
[pid  5004] +++ exited with 1 +++
[   69.101651][ T4999] ==================================================================
[   69.109730][ T4999] BUG: KASAN: slab-use-after-free in hci_conn_hash_flush+0x244/0x270
[   69.117812][ T4999] Read of size 8 at addr ffff888015f96000 by task syz-executor413/4999
[   69.126043][ T4999] 
[   69.128366][ T4999] CPU: 0 PID: 4999 Comm: syz-executor413 Not tainted 6.3.0-syzkaller-07921-g042334a8d424 #0
[   69.138508][ T4999] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
[   69.148550][ T4999] Call Trace:
[   69.151820][ T4999]  <TASK>
[   69.154740][ T4999]  dump_stack_lvl+0xd9/0x150
[   69.159331][ T4999]  print_address_description.constprop.0+0x2c/0x3c0
[   69.165947][ T4999]  ? hci_conn_hash_flush+0x244/0x270
[   69.171247][ T4999]  kasan_report+0x11c/0x130
[   69.175755][ T4999]  ? hci_conn_hash_flush+0x244/0x270
[   69.181058][ T4999]  hci_conn_hash_flush+0x244/0x270
[   69.186268][ T4999]  hci_dev_close_sync+0x5fb/0x1200
[   69.191398][ T4999]  ? hci_reset_sync+0x50/0x50
[   69.196071][ T4999]  ? __kmem_cache_free+0xaf/0x2d0
[   69.201090][ T4999]  hci_dev_do_close+0x31/0x70
[   69.205767][ T4999]  hci_unregister_dev+0x1ce/0x580
[   69.210820][ T4999]  vhci_release+0x80/0xf0
[   69.215187][ T4999]  __fput+0x27c/0xa90
[   69.219302][ T4999]  ? vhci_close_dev+0x50/0x50
[   69.224093][ T4999]  task_work_run+0x16f/0x270
[   69.228709][ T4999]  ? task_work_cancel+0x30/0x30
[   69.233578][ T4999]  do_exit+0xad3/0x2960
[   69.237750][ T4999]  ? preempt_schedule_thunk+0x1a/0x20
[   69.243174][ T4999]  ? mm_update_next_owner+0x7b0/0x7b0
[   69.248882][ T4999]  ? preempt_schedule_thunk+0x1a/0x20
[   69.254531][ T4999]  do_group_exit+0xd4/0x2a0
[   69.259051][ T4999]  __x64_sys_exit_group+0x3e/0x50
[   69.264170][ T4999]  do_syscall_64+0x39/0xb0
[   69.268616][ T4999]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   69.274623][ T4999] RIP: 0033:0x7f2e36495be9
[   69.279044][ T4999] Code: Unable to access opcode bytes at 0x7f2e36495bbf.
[   69.286076][ T4999] RSP: 002b:00007ffc150299b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   69.294520][ T4999] RAX: ffffffffffffffda RBX: 00007f2e365203b0 RCX: 00007f2e36495be9
[   69.302488][ T4999] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
[   69.310462][ T4999] RBP: 0000000000000001 R08: ffffffffffffffb8 R09: 0000000000000010
[   69.318428][ T4999] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2e365203b0
[   69.326391][ T4999] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001
[   69.334384][ T4999]  </TASK>
[   69.337398][ T4999] 
[   69.339715][ T4999] Allocated by task 5004:
[   69.344036][ T4999]  kasan_save_stack+0x22/0x40
[   69.348823][ T4999]  kasan_set_track+0x25/0x30
[   69.353423][ T4999]  __kasan_kmalloc+0xa2/0xb0
[   69.358010][ T4999]  hci_conn_add+0xb8/0x16b0
[   69.362514][ T4999]  hci_connect_sco+0x3c7/0x1050
[   69.367356][ T4999]  sco_sock_connect+0x2d7/0xae0
[   69.372201][ T4999]  __sys_connect_file+0x153/0x1a0
[   69.377218][ T4999]  __sys_connect+0x165/0x1a0
[   69.381807][ T4999]  __x64_sys_connect+0x73/0xb0
[   69.386562][ T4999]  do_syscall_64+0x39/0xb0
[   69.390967][ T4999]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   69.396854][ T4999] 
[   69.399167][ T4999] Freed by task 4999:
[   69.403131][ T4999]  kasan_save_stack+0x22/0x40
[   69.407824][ T4999]  kasan_set_track+0x25/0x30
[   69.412409][ T4999]  kasan_save_free_info+0x2e/0x40
[   69.417430][ T4999]  ____kasan_slab_free+0x160/0x1c0
[   69.422726][ T4999]  slab_free_freelist_hook+0x8b/0x1c0
[   69.428138][ T4999]  __kmem_cache_free+0xaf/0x2d0
[   69.432995][ T4999]  device_release+0xa3/0x240
[   69.437595][ T4999]  kobject_put+0x1c2/0x4d0
[   69.442013][ T4999]  put_device+0x1f/0x30
[   69.446246][ T4999]  hci_conn_del+0x1e5/0x950
[   69.450743][ T4999]  hci_conn_unlink+0x2ce/0x460
[   69.455586][ T4999]  hci_conn_unlink+0x362/0x460
[   69.460361][ T4999]  hci_conn_hash_flush+0x19b/0x270
[   69.465477][ T4999]  hci_dev_close_sync+0x5fb/0x1200
[   69.470585][ T4999]  hci_dev_do_close+0x31/0x70
[   69.475249][ T4999]  hci_unregister_dev+0x1ce/0x580
[   69.480267][ T4999]  vhci_release+0x80/0xf0
[   69.484590][ T4999]  __fput+0x27c/0xa90
[   69.488565][ T4999]  task_work_run+0x16f/0x270
[   69.493168][ T4999]  do_exit+0xad3/0x2960
[   69.497311][ T4999]  do_group_exit+0xd4/0x2a0
[   69.501802][ T4999]  __x64_sys_exit_group+0x3e/0x50
[   69.506820][ T4999]  do_syscall_64+0x39/0xb0
[   69.511232][ T4999]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   69.517149][ T4999] 
[   69.519462][ T4999] The buggy address belongs to the object at ffff888015f96000
[   69.519462][ T4999]  which belongs to the cache kmalloc-4k of size 4096
[   69.533594][ T4999] The buggy address is located 0 bytes inside of
[   69.533594][ T4999]  freed 4096-byte region [ffff888015f96000, ffff888015f97000)
[   69.547295][ T4999] 
[   69.549608][ T4999] The buggy address belongs to the physical page:
[   69.556007][ T4999] page:ffffea000057e400 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x15f90
[   69.566160][ T4999] head:ffffea000057e400 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   69.575083][ T4999] flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
[   69.583060][ T4999] raw: 00fff00000010200 ffff888012442140 dead000000000122 0000000000000000
[   69.591635][ T4999] raw: 0000000000000000 0000000000040004 00000001ffffffff 0000000000000000
[   69.600247][ T4999] page dumped because: kasan: bad access detected
[   69.606648][ T4999] page_owner tracks the page as allocated
[   69.612371][ T4999] page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd2040(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5004, tgid 4999 (syz-executor413), ts 68877816145, free_ts 62956311189
[   69.633376][ T4999]  post_alloc_hook+0x2db/0x350
[   69.638141][ T4999]  get_page_from_freelist+0x1190/0x2e20
[   69.643688][ T4999]  __alloc_pages+0x1cb/0x4a0
[   69.648274][ T4999]  alloc_pages+0x1aa/0x270
[   69.652706][ T4999]  allocate_slab+0x25f/0x390
[   69.657299][ T4999]  ___slab_alloc+0xa91/0x1400
[   69.661985][ T4999]  __slab_alloc.constprop.0+0x56/0xa0
[   69.667369][ T4999]  __kmem_cache_alloc_node+0x136/0x320
[   69.672838][ T4999]  __kmalloc+0x4e/0x190
[   69.677003][ T4999]  tomoyo_realpath_from_path+0xc3/0x600
[   69.682566][ T4999]  tomoyo_check_open_permission+0x29a/0x3a0
[   69.688464][ T4999]  tomoyo_file_open+0xa1/0xc0
[   69.693157][ T4999]  security_file_open+0x49/0xb0
[   69.698025][ T4999]  do_dentry_open+0x575/0x13f0
[   69.703052][ T4999]  path_openat+0x1baa/0x2750
[   69.707654][ T4999]  do_filp_open+0x1ba/0x410
[   69.712334][ T4999] page last free stack trace:
[   69.716996][ T4999]  free_pcp_prepare+0x5da/0xa60
[   69.722313][ T4999]  free_unref_page+0x1d/0x490
[   69.727104][ T4999]  __folio_put+0x109/0x140
[   69.731696][ T4999]  skb_release_data+0x537/0x820
[   69.736568][ T4999]  napi_consume_skb+0x158/0x2a0
[   69.741593][ T4999]  net_rx_action+0x34a/0xcb0
[   69.746453][ T4999]  __do_softirq+0x1d4/0x905
[   69.750977][ T4999] 
[   69.753290][ T4999] Memory state around the buggy address:
[   69.758913][ T4999]  ffff888015f95f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   69.766967][ T4999]  ffff888015f95f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   69.775019][ T4999] >ffff888015f96000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   69.783067][ T4999]                    ^
[   69.787140][ T4999]  ffff888015f96080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   69.795193][ T4999]  ffff888015f96100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   69.803293][ T4999] ==================================================================
[   69.814389][ T4999] Kernel panic - not syncing: KASAN: panic_on_warn set ...
[   69.821615][ T4999] CPU: 0 PID: 4999 Comm: syz-executor413 Not tainted 6.3.0-syzkaller-07921-g042334a8d424 #0
[   69.831713][ T4999] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
[   69.841778][ T4999] Call Trace:
[   69.845079][ T4999]  <TASK>
[   69.848005][ T4999]  dump_stack_lvl+0xd9/0x150
[   69.852622][ T4999]  panic+0x688/0x730
[   69.856517][ T4999]  ? panic_smp_self_stop+0x90/0x90
[   69.861734][ T4999]  ? preempt_schedule_thunk+0x1a/0x20
[   69.867116][ T4999]  ? preempt_schedule_common+0x45/0xb0
[   69.872582][ T4999]  check_panic_on_warn+0xb1/0xc0
[   69.877524][ T4999]  end_report+0xe9/0x120
[   69.881779][ T4999]  ? hci_conn_hash_flush+0x244/0x270
[   69.887091][ T4999]  kasan_report+0xf9/0x130
[   69.891594][ T4999]  ? hci_conn_hash_flush+0x244/0x270
[   69.896948][ T4999]  hci_conn_hash_flush+0x244/0x270
[   69.902107][ T4999]  hci_dev_close_sync+0x5fb/0x1200
[   69.907462][ T4999]  ? hci_reset_sync+0x50/0x50
[   69.912252][ T4999]  ? __kmem_cache_free+0xaf/0x2d0
[   69.917618][ T4999]  hci_dev_do_close+0x31/0x70
[   69.922709][ T4999]  hci_unregister_dev+0x1ce/0x580
[   69.927939][ T4999]  vhci_release+0x80/0xf0
[   69.932386][ T4999]  __fput+0x27c/0xa90
[   69.936506][ T4999]  ? vhci_close_dev+0x50/0x50
[   69.941189][ T4999]  task_work_run+0x16f/0x270
[   69.945789][ T4999]  ? task_work_cancel+0x30/0x30
[   69.950664][ T4999]  do_exit+0xad3/0x2960
[   69.954834][ T4999]  ? preempt_schedule_thunk+0x1a/0x20
[   69.960207][ T4999]  ? mm_update_next_owner+0x7b0/0x7b0
[   69.965573][ T4999]  ? preempt_schedule_thunk+0x1a/0x20
[   69.970965][ T4999]  do_group_exit+0xd4/0x2a0
[   69.975476][ T4999]  __x64_sys_exit_group+0x3e/0x50
[   69.980507][ T4999]  do_syscall_64+0x39/0xb0
[   69.984923][ T4999]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   69.990823][ T4999] RIP: 0033:0x7f2e36495be9
[   69.995224][ T4999] Code: Unable to access opcode bytes at 0x7f2e36495bbf.
[   70.002266][ T4999] RSP: 002b:00007ffc150299b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   70.010945][ T4999] RAX: ffffffffffffffda RBX: 00007f2e365203b0 RCX: 00007f2e36495be9
[   70.018933][ T4999] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
[   70.026897][ T4999] RBP: 0000000000000001 R08: ffffffffffffffb8 R09: 0000000000000010
[   70.034885][ T4999] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2e365203b0
[   70.042861][ T4999] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001
[   70.050948][ T4999]  </TASK>
[   70.054186][ T4999] Kernel Offset: disabled
[   70.058650][ T4999] Rebooting in 86400 seconds..