./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2451257568 <...> Warning: Permanently added '10.128.10.28' (ECDSA) to the list of known hosts. execve("./syz-executor2451257568", ["./syz-executor2451257568"], 0x7ffebe540390 /* 10 vars */) = 0 brk(NULL) = 0x555556fea000 brk(0x555556fead40) = 0x555556fead40 arch_prctl(ARCH_SET_FS, 0x555556fea400) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 set_tid_address(0x555556fea6d0) = 3602 set_robust_list(0x555556fea6e0, 24) = 0 rt_sigaction(SIGRTMIN, {sa_handler=0x7f87197aea10, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7f87197adf60}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=0x7f87197aeab0, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f87197adf60}, 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-executor2451257568", 4096) = 28 brk(0x55555700bd40) = 0x55555700bd40 brk(0x55555700c000) = 0x55555700c000 mprotect(0x7f8719877000, 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 mount(NULL, "/proc/sys/fs/binfmt_misc", "binfmt_misc", 0, NULL) = -1 EBUSY (Device or resource busy) openat(AT_FDCWD, "/proc/sys/fs/binfmt_misc/register", O_WRONLY|O_CLOEXEC) = 3 write(3, "\x3a\x73\x79\x7a\x30\x3a\x4d\x3a\x30\x3a\x01\x3a\x3a\x2e\x2f\x66\x69\x6c\x65\x30\x3a", 21) = 21 close(3) = 0 openat(AT_FDCWD, "/proc/sys/fs/binfmt_misc/register", O_WRONLY|O_CLOEXEC) = 3 write(3, "\x3a\x73\x79\x7a\x31\x3a\x4d\x3a\x31\x3a\x02\x3a\x3a\x2e\x2f\x66\x69\x6c\x65\x30\x3a\x50\x4f\x43", 24) = 24 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/failslab/ignore-gfp-wait", O_WRONLY|O_CLOEXEC) = 3 write(3, "N", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/fail_futex/ignore-private", O_WRONLY|O_CLOEXEC) = 3 write(3, "N", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/fail_page_alloc/ignore-gfp-highmem", O_WRONLY|O_CLOEXEC) = 3 write(3, "N", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/fail_page_alloc/ignore-gfp-wait", O_WRONLY|O_CLOEXEC) = 3 write(3, "N", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/fail_page_alloc/min-order", O_WRONLY|O_CLOEXEC) = 3 write(3, "0", 1) = 1 close(3) = 0 socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 3 socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC) = 4 sendto(4, [{nlmsg_len=36, nlmsg_type=0x10 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}, "\x03\x00\x00\x00\x0d\x00\x02\x00\x6e\x6c\x38\x30\x32\x31\x35\x34\x00\x00\x00\x00"], 36, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 36 recvfrom(4, [{nlmsg_len=680, nlmsg_type=nlctrl, nlmsg_flags=0, nlmsg_seq=0, nlmsg_pid=3602}, "\x01\x02\x00\x00\x0d\x00\x02\x00\x6e\x6c\x38\x30\x32\x31\x35\x34\x00\x00\x00\x00\x06\x00\x01\x00\x1c\x00\x00\x00\x08\x00\x03\x00\x01\x00\x00\x00\x08\x00\x04\x00\x00\x00\x00\x00\x08\x00\x05\x00\x25\x00\x00\x00\x48\x02\x06\x00\x14\x00\x01\x00\x08\x00\x01\x00\x01\x00\x00\x00\x08\x00\x02\x00\x0e\x00\x00\x00\x14\x00\x02\x00\x08\x00\x01\x00\x05\x00\x00\x00\x08\x00\x02\x00\x0e\x00\x00\x00\x14\x00\x03\x00"...], 4096, 0, NULL, NULL) = 680 recvfrom(4, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=3602}, {error=0, msg={nlmsg_len=36, nlmsg_type=nlctrl, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 access("/proc/net", R_OK) = 0 access("/proc/net/unix", R_OK) = 0 socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0) = 5 ioctl(5, SIOCGIFINDEX, {ifr_name="wpan0", ifr_ifindex=11}) = 0 close(5) = 0 sendto(4, [{nlmsg_len=36, nlmsg_type=nl802154, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}, "\x0b\x00\x00\x00\x08\x00\x03\x00\x0b\x00\x00\x00\x06\x00\x0a\x00\xa0\xaa\x00\x00"], 36, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 36 recvfrom(4, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=3602}, {error=0, msg={nlmsg_len=36, nlmsg_type=nl802154, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0) = 5 ioctl(5, SIOCGIFINDEX, {ifr_name="wpan0", ifr_ifindex=11}) = 0 close(5) = 0 sendto(3, [{nlmsg_len=44, nlmsg_type=0x10 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x01\x00\x00\x00\x01\x00\x00\x00\x0c\x00\x01\x00\x02\x00\xaa\xaa\xaa\xaa\xaa\xaa"], 44, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 44 recvfrom(3, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=3602}, {error=0, msg={nlmsg_len=44, nlmsg_type=RTM_NEWLINK, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 sendto(3, [{nlmsg_len=68, nlmsg_type=RTM_NEWLINK, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|NLM_F_EXCL|NLM_F_CREATE, nlmsg_seq=0, nlmsg_pid=0}, {ifi_family=AF_UNSPEC, ifi_type=ARPHRD_NETROM, ifi_index=0, ifi_flags=0, ifi_change=0}, [[{nla_len=11, nla_type=IFLA_IFNAME}, "lowpan0"...], [{nla_len=16, nla_type=IFLA_LINKINFO}, [{nla_len=10, nla_type=IFLA_INFO_KIND}, "lowpan"...]], [{nla_len=8, nla_type=IFLA_LINK}, 11]]], 68, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 68 recvfrom(3, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=3602}, {error=0, msg={nlmsg_len=68, nlmsg_type=RTM_NEWLINK, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|NLM_F_EXCL|NLM_F_CREATE, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0) = 5 ioctl(5, SIOCGIFINDEX, {ifr_name="wpan1", ifr_ifindex=12}) = 0 close(5) = 0 sendto(4, [{nlmsg_len=36, nlmsg_type=nl802154, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}, "\x0b\x00\x00\x00\x08\x00\x03\x00\x0c\x00\x00\x00\x06\x00\x0a\x00\xa1\xaa\x00\x00"], 36, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 36 recvfrom(4, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=3602}, {error=0, msg={nlmsg_len=36, nlmsg_type=nl802154, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0) = 5 ioctl(5, SIOCGIFINDEX, {ifr_name="wpan1", ifr_ifindex=12}) = 0 close(5) = 0 sendto(3, [{nlmsg_len=44, nlmsg_type=RTM_NEWLINK, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}, {ifi_family=AF_UNSPEC, ifi_type=ARPHRD_NETROM, ifi_index=if_nametoindex("wpan1"), ifi_flags=IFF_UP, ifi_change=0x1}, [{nla_len=12, nla_type=IFLA_ADDRESS}, 02:01:aa:aa:aa:aa:aa]], 44, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 44 recvfrom(3, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=3602}, {error=0, msg={nlmsg_len=44, nlmsg_type=RTM_NEWLINK, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 close(3) = 0 close(4) = 0 rt_sigaction(SIGRTMIN, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGSEGV, {sa_handler=0x7f87197a1150, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f87197adf60}, NULL, 8) = 0 rt_sigaction(SIGBUS, {sa_handler=0x7f87197a1150, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f87197adf60}, NULL, 8) = 0 getpid() = 3602 mkdir("./syzkaller.R3Seaz", 0700) = 0 chmod("./syzkaller.R3Seaz", 0777) = 0 chdir("./syzkaller.R3Seaz") = 0 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556fea6d0) = 3604 ./strace-static-x86_64: Process 3604 attached [pid 3604] set_robust_list(0x555556fea6e0, 24) = 0 [pid 3604] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 3604] socket(AF_BLUETOOTH, SOCK_RAW, BTPROTO_HCI) = 3 [pid 3604] openat(AT_FDCWD, "/dev/vhci", O_RDWR) = 4 [pid 3604] dup2(4, 202) = 202 [pid 3604] close(4) = 0 [pid 3604] read(202, "\xff\x00\x00\x00", 4) = 4 [pid 3604] mmap(NULL, 8392704, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f8718e00000 [pid 3604] mprotect(0x7f8718e01000, 8388608, PROT_READ|PROT_WRITE) = 0 [pid 3604] clone(child_stack=0x7f87196002f0, 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 3608 attached [pid 3608] set_robust_list(0x7f87196009e0, 24) = 0 [pid 3608] read(202, "\x01\x03\x0c\x00", 1024) = 4 [pid 3608] 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 3604] <... clone resumed>, parent_tid=[2], tls=0x7f8719600700, child_tidptr=0x7f87196009d0) = 2 [pid 3604] ioctl(3, HCIDEVUP [pid 3608] read(202, "\x01\x03\x10\x00", 1024) = 4 [pid 3608] 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 3608] read(202, "\x01\x01\x10\x00", 1024) = 4 [pid 3608] 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 3608] read(202, "\x01\x09\x10\x00", 1024) = 4 [pid 3608] 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 3608] read(202, "\x01\x05\x10\x00", 1024) = 4 [pid 3608] 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 3608] read(202, "\x01\x23\x0c\x00", 1024) = 4 [pid 3608] 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 3608] read(202, "\x01\x14\x0c\x00", 1024) = 4 [pid 3608] 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 3608] read(202, "\x01\x25\x0c\x00", 1024) = 4 [pid 3608] 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 3608] read(202, "\x01\x38\x0c\x00", 1024) = 4 [pid 3608] 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 3608] read(202, "\x01\x39\x0c\x00", 1024) = 4 [pid 3608] 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 3608] read(202, "\x01\x16\x0c\x02\x00\x7d", 1024) = 6 [pid 3608] 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 3608] read(202, [pid 3604] <... ioctl resumed>, 0) = -1 EALREADY (Operation already in progress) syzkaller login: [ 38.927260][ T3607] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 38.935231][ T3607] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 38.943400][ T3607] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 38.952777][ T3607] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 38.961230][ T3607] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 38.969103][ T3607] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [pid 3604] ioctl(3, HCISETSCAN [pid 3608] <... read resumed>"\x01\x1a\x0c\x01\x02", 1024) = 5 [pid 3608] 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 3608] madvise(0x7f8718e00000, 8372224, MADV_DONTNEED) = 0 [pid 3608] exit(0) = ? [pid 3608] +++ exited with 0 +++ [pid 3604] <... ioctl resumed>, 0x7ffebfd5c19c) = 0 [pid 3604] 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) = 13 [pid 3604] 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 3604] 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 3604] 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 3604] close(3) = 0 [pid 3604] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3604] setsid() = 1 [pid 3604] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 3604] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 3604] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 3604] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 3604] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 3604] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 3604] unshare(CLONE_NEWNS) = 0 [pid 3604] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 3604] unshare(CLONE_NEWIPC) = 0 [pid 3604] unshare(CLONE_NEWCGROUP) = 0 [pid 3604] unshare(CLONE_NEWUTS) = 0 [pid 3604] unshare(CLONE_SYSVSEM) = 0 [pid 3604] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3604] write(3, "16777216", 8) = 8 [pid 3604] close(3) = 0 [pid 3604] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 3604] write(3, "536870912", 9) = 9 [pid 3604] close(3) = 0 [pid 3604] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3604] write(3, "1024", 4) = 4 [pid 3604] close(3) = 0 [pid 3604] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3604] write(3, "8192", 4) = 4 [pid 3604] close(3) = 0 [pid 3604] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3604] write(3, "1024", 4) = 4 [pid 3604] close(3) = 0 [pid 3604] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 3604] write(3, "1024", 4) = 4 [pid 3604] close(3) = 0 [pid 3604] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 3604] write(3, "1024 1048576 500 1024", 21) = 21 [pid 3604] close(3) = 0 [pid 3604] getpid() = 1 [pid 3604] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b 31 db e9 af fc ff ff e8 0e 4b fd fd 48 8d 7d 18 be ff ff ff [ 40.665565][ T3604] RSP: 0018:ffffc90003f4f9c0 EFLAGS: 00010293 [ 40.671645][ T3604] RAX: 0000000000000000 RBX: 00000000000d0000 RCX: 0000000000000000 [ 40.679611][ T3604] RDX: ffff888021f78000 RSI: ffffffff837f5164 RDI: 0000000000000006 [ 40.687593][ T3604] RBP: ffff88807da53000 R08: 0000000000000006 R09: 00000000000e0000 [ 40.695586][ T3604] R10: 00000000000d0000 R11: 000000000008c07e R12: fffffffffff20000 [ 40.703566][ T3604] R13: ffff88807da53060 R14: 00000000000e0000 R15: 0000000000000002 [ 40.711568][ T3604] FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 [ 40.720499][ T3604] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 40.727094][ T3604] CR2: 00007faff6153690 CR3: 000000000bc8e000 CR4: 0000000000350ef0 [ 40.735089][ T3604] Call Trace: [ 40.738346][ T3604] [ 40.741256][ T3604] btrfs_block_rsv_release+0x515/0x650 [ 40.746731][ T3604] btrfs_release_global_block_rsv+0x22/0x2e0 [ 40.752754][ T3604] btrfs_free_block_groups+0x954/0x1100 [ 40.758370][ T3604] close_ctree+0xd17/0xdc3 [ 40.762801][ T3604] ? btrfs_cleanup_one_transaction.cold+0x4f/0x4f [ 40.769222][ T3604] ? hook_sb_pivotroot+0xe0/0xe0 [ 40.774187][ T3604] ? __fsnotify_vfsmount_delete+0x20/0x20 [ 40.779942][ T3604] ? dispose_list+0x1e0/0x1e0 [ 40.785158][ T3604] ? sync_blockdev+0x6f/0x90 [ 40.789757][ T3604] ? dlm_send_remote_unlock_request.constprop.0.cold+0x16/0x16 [ 40.797326][ T3604] generic_shutdown_super+0x154/0x410 [ 40.802739][ T3604] kill_anon_super+0x36/0x60 [ 40.807317][ T3604] btrfs_kill_super+0x38/0x50 [ 40.812191][ T3604] deactivate_locked_super+0x94/0x160 [ 40.817571][ T3604] deactivate_super+0xad/0xd0 [ 40.822261][ T3604] cleanup_mnt+0x2ae/0x3d0 [ 40.826704][ T3604] task_work_run+0x16b/0x270 [ 40.831278][ T3604] ? task_work_cancel+0x30/0x30 [ 40.836160][ T3604] do_exit+0xb35/0x2a20 [ 40.840336][ T3604] ? lock_downgrade+0x6e0/0x6e0 [ 40.845197][ T3604] ? do_raw_spin_lock+0x120/0x2a0 [ 40.850232][ T3604] ? mm_update_next_owner+0x7b0/0x7b0 [ 40.855619][ T3604] ? rwlock_bug.part.0+0x90/0x90 [ 40.860566][ T3604] do_group_exit+0xd0/0x2a0 [ 40.865080][ T3604] __x64_sys_exit_group+0x3a/0x50 [ 40.870111][ T3604] do_syscall_64+0x35/0xb0 [ 40.874546][ T3604] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 40.880479][ T3604] RIP: 0033:0x7f87197f03e9 [ 40.884905][ T3604] Code: Unable to access opcode bytes at 0x7f87197f03bf. [ 40.891929][ T3604] RSP: 002b:00007ffebfd5c0d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 40.900318][ T3604] RAX: ffffffffffffffda RBX: 00007f871987d470 RCX: 00007f87197f03e9 [ 40.908391][ T3604] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 40.916376][ T3604] RBP: 0000000000000001 R08: ffffffffffffffb8 R09: 00007ffebf003031 [ 40.924361][ T3604] R10: 0000000080000009 R11: 0000000000000246 R12: 00007f871987d470 [ 40.932378][ T3604] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 40.940354][ T3604] [ 40.943392][ T3604] Kernel panic - not syncing: panic_on_warn set ... [ 40.949980][ T3604] CPU: 0 PID: 3604 Comm: syz-executor245 Not tainted 6.1.0-rc2-syzkaller-00105-gb229b6ca5abb #0 [ 40.960543][ T3604] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 [ 40.970591][ T3604] Call Trace: [ 40.973848][ T3604] [ 40.976760][ T3604] dump_stack_lvl+0xcd/0x134 [ 40.981350][ T3604] panic+0x2c8/0x622 [ 40.985230][ T3604] ? panic_print_sys_info.part.0+0x110/0x110 [ 40.991206][ T3604] ? __warn.cold+0x24b/0x350 [ 40.995795][ T3604] ? btrfs_space_info_update_bytes_may_use+0x524/0x820 [ 41.001641][ T3607] Bluetooth: hci0: command 0x0409 tx timeout [ 41.008578][ T3604] __warn.cold+0x25c/0x350 [ 41.012981][ T3604] ? btrfs_space_info_update_bytes_may_use+0x524/0x820 [ 41.019814][ T3604] report_bug+0x1bc/0x210 [ 41.024124][ T3604] handle_bug+0x3c/0x70 [ 41.028262][ T3604] exc_invalid_op+0x14/0x40 [ 41.032748][ T3604] asm_exc_invalid_op+0x16/0x20 [ 41.037594][ T3604] RIP: 0010:btrfs_space_info_update_bytes_may_use+0x524/0x820 [ 41.045039][ T3604] Code: fd e9 77 fb ff ff e8 3b 4b fd fd 4d 89 e6 48 89 de 49 f7 de 4c 89 f7 e8 9a 47 fd fd 49 39 de 0f 86 b5 fc ff ff e8 1c 4b fd fd <0f> 0b 31 db e9 af fc ff ff e8 0e 4b fd fd 48 8d 7d 18 be ff ff ff [ 41.064745][ T3604] RSP: 0018:ffffc90003f4f9c0 EFLAGS: 00010293 [ 41.070805][ T3604] RAX: 0000000000000000 RBX: 00000000000d0000 RCX: 0000000000000000 [ 41.078755][ T3604] RDX: ffff888021f78000 RSI: ffffffff837f5164 RDI: 0000000000000006 [ 41.086709][ T3604] RBP: ffff88807da53000 R08: 0000000000000006 R09: 00000000000e0000 [ 41.094675][ T3604] R10: 00000000000d0000 R11: 000000000008c07e R12: fffffffffff20000 [ 41.102646][ T3604] R13: ffff88807da53060 R14: 00000000000e0000 R15: 0000000000000002 [ 41.110609][ T3604] ? btrfs_space_info_update_bytes_may_use+0x524/0x820 [ 41.117578][ T3604] btrfs_block_rsv_release+0x515/0x650 [ 41.123020][ T3604] btrfs_release_global_block_rsv+0x22/0x2e0 [ 41.128978][ T3604] btrfs_free_block_groups+0x954/0x1100 [ 41.134609][ T3604] close_ctree+0xd17/0xdc3 [ 41.139097][ T3604] ? btrfs_cleanup_one_transaction.cold+0x4f/0x4f [ 41.145496][ T3604] ? hook_sb_pivotroot+0xe0/0xe0 [ 41.150418][ T3604] ? __fsnotify_vfsmount_delete+0x20/0x20 [ 41.156128][ T3604] ? dispose_list+0x1e0/0x1e0 [ 41.160788][ T3604] ? sync_blockdev+0x6f/0x90 [ 41.165374][ T3604] ? dlm_send_remote_unlock_request.constprop.0.cold+0x16/0x16 [ 41.172904][ T3604] generic_shutdown_super+0x154/0x410 [ 41.178360][ T3604] kill_anon_super+0x36/0x60 [ 41.182948][ T3604] btrfs_kill_super+0x38/0x50 [ 41.187608][ T3604] deactivate_locked_super+0x94/0x160 [ 41.192959][ T3604] deactivate_super+0xad/0xd0 [ 41.197613][ T3604] cleanup_mnt+0x2ae/0x3d0 [ 41.202025][ T3604] task_work_run+0x16b/0x270 [ 41.206603][ T3604] ? task_work_cancel+0x30/0x30 [ 41.211456][ T3604] do_exit+0xb35/0x2a20 [ 41.215594][ T3604] ? lock_downgrade+0x6e0/0x6e0 [ 41.220600][ T3604] ? do_raw_spin_lock+0x120/0x2a0 [ 41.225603][ T3604] ? mm_update_next_owner+0x7b0/0x7b0 [ 41.230954][ T3604] ? rwlock_bug.part.0+0x90/0x90 [ 41.235873][ T3604] do_group_exit+0xd0/0x2a0 [ 41.240352][ T3604] __x64_sys_exit_group+0x3a/0x50 [ 41.245354][ T3604] do_syscall_64+0x35/0xb0 [ 41.249756][ T3604] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 41.255633][ T3604] RIP: 0033:0x7f87197f03e9 [ 41.260025][ T3604] Code: Unable to access opcode bytes at 0x7f87197f03bf. [ 41.267013][ T3604] RSP: 002b:00007ffebfd5c0d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 41.275404][ T3604] RAX: ffffffffffffffda RBX: 00007f871987d470 RCX: 00007f87197f03e9 [ 41.283358][ T3604] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 41.291305][ T3604] RBP: 0000000000000001 R08: ffffffffffffffb8 R09: 00007ffebf003031 [ 41.299368][ T3604] R10: 0000000080000009 R11: 0000000000000246 R12: 00007f871987d470 [ 41.307323][ T3604] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 41.315469][ T3604] [ 41.319134][ T3604] Kernel Offset: disabled [ 41.323439][ T3604] Rebooting in 86400 seconds..