ci2-android-5-15/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci2-android-5-15/syz-executor1172948291

<...>
Warning: Permanently added '10.128.1.81' (ED25519) to the list of known hosts.
execve("ci2-android-5-15/syz-executor1172948291", ["ci2-android-5-15/syz-executor1172948291"], 0x7ffec2b36c20 /* 10 vars */) = 0
brk(NULL)                               = 0x555575b1d000
brk(0x555575b1dd40)                     = 0x555575b1dd40
arch_prctl(ARCH_SET_FS, 0x555575b1d3c0) = 0
set_tid_address(0x555575b1d690)         = 303
set_robust_list(0x555575b1d6a0, 24)     = 0
rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 32, 0, 0x53053053) = -1 ENOSYS (Function not implemented)
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlinkat(AT_FDCWD, "/proc/self/exe", "/root/ci2-android-5-15/syz-executor1172948291", 4096) = 45
getrandom("\xb1\x6a\x02\x62\x6b\xfb\x31\x5e", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x555575b1dd40
brk(0x555575b3ed40)                     = 0x555575b3ed40
brk(0x555575b3f000)                     = 0x555575b3f000
mprotect(0x7f8a65d76000, 20480, PROT_READ) = 0
mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000
mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000
mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000
unshare(CLONE_NEWPID)                   = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8)   = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555575b1d690) = 304
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
ci2-android-5-15/strace-static-x86_64: Process 304 attached
[pid   304] set_robust_list(0x555575b1d6a0, 24) = 0
[pid   304] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid   304] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   304] getppid()                   = 0
[pid   304] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid   304] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid   304] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid   304] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid   304] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid   304] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid   304] unshare(CLONE_NEWNS)        = 0
[pid   304] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[pid   304] unshare(CLONE_NEWIPC)       = -1 EINVAL (Invalid argument)
[pid   304] unshare(CLONE_NEWCGROUP)    = 0
[pid   304] unshare(CLONE_NEWUTS)       = 0
[pid   304] unshare(CLONE_SYSVSEM)      = 0
[pid   304] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   304] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   304] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   304] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   304] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   304] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   304] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   304] getpid()                    = 1
[pid   304] 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   304] 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   304] unshare(CLONE_NEWNET)       = 0
[pid   304] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid   304] write(3, "0 65535", 7)      = 7
[pid   304] close(3)                    = 0
[pid   304] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3
[pid   304] write(3, "100000", 6)       = 6
[pid   304] close(3)                    = 0
[pid   304] mkdir("./syz-tmp", 0777)    = 0
[   25.136967][   T30] audit: type=1400 audit(1790201080.013:64): avc:  denied  { execmem } for  pid=303 comm="syz-executor117" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   25.162516][   T30] audit: type=1400 audit(1790201080.043:65): avc:  denied  { mounton } for  pid=304 comm="syz-executor117" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1
[pid   304] mount("", "./syz-tmp", "tmpfs", 0, NULL) = 0
[pid   304] mkdir("./syz-tmp/newroot", 0777) = 0
[pid   304] mkdir("./syz-tmp/newroot/dev", 0700) = 0
[pid   304] mount("/dev", "./syz-tmp/newroot/dev", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   304] mkdir("./syz-tmp/newroot/proc", 0700) = 0
[pid   304] mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL) = 0
[pid   304] mkdir("./syz-tmp/newroot/selinux", 0700) = 0
[pid   304] mount("/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid   304] mount("/sys/fs/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   304] mkdir("./syz-tmp/newroot/sys", 0700) = 0
[pid   304] mount("/sys", "./syz-tmp/newroot/sys", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   304] mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   304] mount("/sys/fs/smackfs", "./syz-tmp/newroot/sys/fs/smackfs", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid   304] mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   304] mkdir("./syz-tmp/newroot/syz-inputs", 0700) = 0
[pid   304] mount("/syz-inputs", "./syz-tmp/newroot/syz-inputs", NULL, MS_RDONLY|MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid   304] mkdir("./syz-tmp/pivot", 0777) = 0
[pid   304] pivot_root("./syz-tmp", "./syz-tmp/pivot") = 0
[pid   304] chdir("/")                  = 0
[pid   304] umount2("./pivot", MNT_DETACH) = 0
[pid   304] chroot("./newroot")         = 0
[pid   304] chdir("/")                  = 0
[   25.198639][   T30] audit: type=1400 audit(1790201080.083:66): avc:  denied  { mounton } for  pid=304 comm="syz-executor117" path="/root/syz-tmp" dev="sda1" ino=2025 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[   25.221735][   T30] audit: type=1400 audit(1790201080.093:67): avc:  denied  { mount } for  pid=304 comm="syz-executor117" name="/" dev="tmpfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:tmpfs_t tclass=filesystem permissive=1
[pid   304] mkdir("/dev/gadgetfs", 0777) = 0
[pid   304] mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL) = -1 ENODEV (No such device)
[pid   304] mkdir("/dev/binderfs", 0777) = 0
[pid   304] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0
[pid   304] symlink("/dev/binderfs", "./binderfs") = 0
[pid   304] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
executing program
[pid   304] write(1, "executing program\n", 18) = 18
[pid   304] socket(AF_PPPOX, SOCK_STREAM, 1) = 3
[pid   304] socket(AF_INET6, SOCK_DGRAM, IPPROTO_IP) = 4
[pid   304] connect(3, {sa_family=AF_PPPOX, sa_data="\x01\x00\x00\x00\x03\x00\x00\x00\x04\x00\x00\x00\x02\x00\x00\x00\xac\x14\x14\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"}, 46) = 0
[pid   304] ioctl(3, PPPIOCGL2TPSTATS, 0) = -1 EFAULT (Bad address)
[   25.243927][   T30] audit: type=1400 audit(1790201080.093:68): avc:  denied  { mounton } for  pid=304 comm="syz-executor117" path="/root/syz-tmp/newroot/dev" dev="tmpfs" ino=3 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_tmpfs_t tclass=dir permissive=1
[   25.253284][  T304] request_module fs-gadgetfs succeeded, but still no fs?
[   25.268438][   T30] audit: type=1400 audit(1790201080.103:69): avc:  denied  { mount } for  pid=304 comm="syz-executor117" name="/" dev="proc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:proc_t tclass=filesystem permissive=1
[   25.297033][   T30] audit: type=1400 audit(1790201080.113:70): avc:  denied  { mounton } for  pid=304 comm="syz-executor117" path="/root/syz-tmp/newroot/sys/kernel/debug" dev="debugfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:debugfs_t tclass=dir permissive=1
[   25.322880][   T30] audit: type=1400 audit(1790201080.113:71): avc:  denied  { mounton } for  pid=304 comm="syz-executor117" path="/root/syz-tmp/newroot/proc/sys/fs/binfmt_misc" dev="proc" ino=15064 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:sysctl_fs_t tclass=dir permissive=1
[   25.323220][  T304] ==================================================================
[   25.349345][   T30] audit: type=1400 audit(1790201080.123:72): avc:  denied  { unmount } for  pid=304 comm="syz-executor117" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1
[   25.357071][  T304] BUG: KASAN: use-after-free in mutex_lock+0x8e/0x1c0
[   25.376814][   T30] audit: type=1400 audit(1790201080.133:73): avc:  denied  { mounton } for  pid=304 comm="syz-executor117" path="/dev/gadgetfs" dev="devtmpfs" ino=556 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1
[   25.383474][  T304] Write of size 8 at addr ffff88810ae2ad50 by task syz-executor117/304
[   25.414550][  T304] 
[   25.416893][  T304] CPU: 1 PID: 304 Comm: syz-executor117 Not tainted syzkaller #0
[   25.424615][  T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
[   25.434760][  T304] Call Trace:
[   25.438029][  T304]  <TASK>
[   25.440952][  T304]  __dump_stack+0x21/0x30
[   25.445283][  T304]  dump_stack_lvl+0x110/0x170
[   25.449953][  T304]  ? show_regs_print_info+0x20/0x20
[   25.455142][  T304]  ? load_image+0x3f0/0x3f0
[   25.459661][  T304]  print_address_description+0x7f/0x2c0
[   25.465200][  T304]  ? mutex_lock+0x8e/0x1c0
[   25.469623][  T304]  kasan_report+0x10f/0x150
[   25.474123][  T304]  ? mutex_lock+0x8e/0x1c0
[   25.478530][  T304]  kasan_check_range+0x249/0x2a0
[   25.483459][  T304]  __kasan_check_write+0x14/0x20
[   25.488391][  T304]  mutex_lock+0x8e/0x1c0
[   25.492629][  T304]  ? wait_for_completion_killable_timeout+0x10/0x10
[   25.499222][  T304]  ? l2tp_session_put+0xaf/0x1a0
[   25.504155][  T304]  ? l2tp_session_delete+0x3a9/0x4a0
[   25.509436][  T304]  pppol2tp_release+0x178/0x2b0
[   25.514280][  T304]  sock_close+0xb8/0x200
[   25.518518][  T304]  ? sock_mmap+0xa0/0xa0
[   25.522747][  T304]  __fput+0x22b/0x900
[   25.526718][  T304]  ____fput+0x15/0x20
[   25.530689][  T304]  task_work_run+0x127/0x190
[   25.535271][  T304]  ptrace_notify+0x230/0x270
[   25.539862][  T304]  ? kick_process+0xdc/0x150
[   25.544455][  T304]  ? do_notify_parent+0x830/0x830
[   25.549474][  T304]  ? task_work_add+0x1b2/0x1e0
[   25.554231][  T304]  ? fput_many+0x161/0x1a0
[   25.558649][  T304]  ? fput+0x1a/0x20
[   25.562454][  T304]  ? filp_close+0x105/0x150
[   25.566953][  T304]  syscall_exit_work+0x87/0x160
[   25.571813][  T304]  syscall_exit_to_user_mode_prepare+0x1c/0x20
[   25.577961][  T304]  syscall_exit_to_user_mode+0xd/0x30
[   25.583328][  T304]  do_syscall_64+0x58/0xa0
[   25.587764][  T304]  ? clear_bhb_loop+0x50/0xa0
[   25.592436][  T304]  ? clear_bhb_loop+0x50/0xa0
[   25.597107][  T304]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[   25.602994][  T304] RIP: 0033:0x7f8a65cf5557
[   25.607404][  T304] Code: 48 89 fa 4c 89 df e8 48 1f 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
[   25.627160][  T304] RSP: 002b:00007ffef1e9d1f0 EFLAGS: 00000202 ORIG_RAX: 0000000000000003
[   25.635676][  T304] RAX: 0000000000000000 RBX: 0000555575b1d3c0 RCX: 00007f8a65cf5557
[   25.643645][  T304] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
[   25.651626][  T304] RBP: 00007f8a65d4b126 R08: 0000000000000000 R09: 0000000000000000
[   25.659590][  T304] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f8a65d4cdf0
[   25.667565][  T304] R13: 00007f8a65d4b08e R14: 00007f8a65d76bc0 R15: 0000000000000002
[   25.675531][  T304]  </TASK>
[   25.678550][  T304] 
[   25.680864][  T304] Allocated by task 304:
[   25.685092][  T304]  __kasan_kmalloc+0xd4/0x100
[   25.689774][  T304]  __kmalloc+0x13d/0x2c0
[   25.694026][  T304]  l2tp_session_create+0x39/0xb60
[   25.699048][  T304]  pppol2tp_connect+0xbf5/0x1640
[   25.704001][  T304]  __sys_connect+0x3cb/0x450
[   25.708600][  T304]  __x64_sys_connect+0x7a/0x90
[   25.713372][  T304]  x64_sys_call+0x7c/0x9a0
[   25.717798][  T304]  do_syscall_64+0x4c/0xa0
[   25.722207][  T304]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[   25.728092][  T304] 
[   25.730405][  T304] Freed by task 304:
[   25.734302][  T304]  kasan_set_track+0x4a/0x70
[   25.738972][  T304]  kasan_set_free_info+0x23/0x40
[   25.743900][  T304]  ____kasan_slab_free+0x125/0x160
[   25.749003][  T304]  __kasan_slab_free+0x11/0x20
[   25.753772][  T304]  slab_free_freelist_hook+0xc2/0x190
[   25.759139][  T304]  kfree+0xc4/0x270
[   25.762942][  T304]  l2tp_session_put+0xaf/0x1a0
[   25.768153][  T304]  l2tp_session_delete+0x3a9/0x4a0
[   25.773258][  T304]  pppol2tp_release+0x169/0x2b0
[   25.778118][  T304]  sock_close+0xb8/0x200
[   25.782355][  T304]  __fput+0x22b/0x900
[   25.786328][  T304]  ____fput+0x15/0x20
[   25.790323][  T304]  task_work_run+0x127/0x190
[   25.794921][  T304]  ptrace_notify+0x230/0x270
[   25.799505][  T304]  syscall_exit_work+0x87/0x160
[   25.804351][  T304]  syscall_exit_to_user_mode_prepare+0x1c/0x20
[   25.810509][  T304]  syscall_exit_to_user_mode+0xd/0x30
[   25.815977][  T304]  do_syscall_64+0x58/0xa0
[   25.820394][  T304]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[   25.826298][  T304] 
[   25.828615][  T304] Last potentially related work creation:
[   25.834318][  T304]  kasan_save_stack+0x3a/0x60
[   25.838986][  T304]  __kasan_record_aux_stack+0xd2/0x100
[   25.844440][  T304]  kasan_record_aux_stack_noalloc+0xb/0x10
[   25.850262][  T304]  call_rcu+0x10b/0xf60
[   25.854434][  T304]  blkg_release+0x23/0x30
[   25.858756][  T304]  percpu_ref_switch_to_atomic_rcu+0x611/0x620
[   25.864906][  T304]  rcu_do_batch+0x4c1/0xbf0
[   25.869412][  T304]  rcu_core+0x4a3/0xef0
[   25.873603][  T304]  rcu_core_si+0x9/0x10
[   25.877765][  T304]  handle_softirqs+0x250/0x560
[   25.882567][  T304]  run_ksoftirqd+0x28/0x40
[   25.886983][  T304]  smpboot_thread_fn+0x446/0x880
[   25.891915][  T304]  kthread+0x3f5/0x4f0
[   25.895979][  T304]  ret_from_fork+0x1f/0x30
[   25.900388][  T304] 
[   25.902720][  T304] The buggy address belongs to the object at ffff88810ae2ac00
[   25.902720][  T304]  which belongs to the cache kmalloc-512 of size 512
[   25.916781][  T304] The buggy address is located 336 bytes inside of
[   25.916781][  T304]  512-byte region [ffff88810ae2ac00, ffff88810ae2ae00)
[   25.930064][  T304] The buggy address belongs to the page:
[   25.935697][  T304] page:ffffea00042b8a00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10ae28
[   25.945928][  T304] head:ffffea00042b8a00 order:2 compound_mapcount:0 compound_pincount:0
[   25.954257][  T304] flags: 0x4000000000010200(slab|head|zone=1)
[   25.960327][  T304] raw: 4000000000010200 ffffea00042b8900 0000000300000003 ffff888100042f00
[   25.968911][  T304] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000
[   25.977479][  T304] page dumped because: kasan: bad access detected
[   25.983895][  T304] page_owner tracks the page as allocated
[   25.989608][  T304] page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, ts 2561967803, free_ts 0
[   26.007481][  T304]  post_alloc_hook+0x192/0x1b0
[   26.012241][  T304]  prep_new_page+0x1c/0x110
[   26.016737][  T304]  get_page_from_freelist+0x2c3a/0x2cd0
[   26.022274][  T304]  __alloc_pages+0x1a2/0x460
[   26.026858][  T304]  new_slab+0xa0/0x4d0
[   26.030936][  T304]  ___slab_alloc+0x3ac/0x840
[   26.035536][  T304]  __slab_alloc+0x49/0x90
[   26.039863][  T304]  kmem_cache_alloc_trace+0x146/0x270
[   26.045244][  T304]  blkg_alloc+0x82/0x5d0
[   26.049480][  T304]  blkcg_init_queue+0x29/0x210
[   26.054235][  T304]  blk_alloc_queue+0x3be/0x550
[   26.059009][  T304]  blk_mq_init_queue+0x37/0xd0
[   26.063768][  T304]  scsi_alloc_sdev+0x66c/0x9c0
[   26.068558][  T304]  scsi_probe_and_add_lun+0x180/0x35d0
[   26.074030][  T304]  __scsi_scan_target+0x1d2/0xb70
[   26.079047][  T304]  scsi_scan_host_selected+0x34e/0x600
[   26.084501][  T304] page_owner free stack trace missing
[   26.089876][  T304] 
[   26.092192][  T304] Memory state around the buggy address:
[   26.097810][  T304]  ffff88810ae2ac00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   26.105878][  T304]  ffff88810ae2ac80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   26.113930][  T304] >ffff88810ae2ad00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   26.121976][  T304]                                                  ^
[   26.128656][  T304]  ffff88810ae2ad80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   26.136718][  T304]  ffff88810ae2ae00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   26.144783][  T304] ==================================================================
[pid   304] close(3)                    = 0
[pid   304] close(4)                    = 0
[pid   304] close(5)                    = -1 EBADF (Bad file descriptor)
[pid   304] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   304] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   304] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   304] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   304] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   304] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   304] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   304] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   304] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   304] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   304] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   304] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   304] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   304] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   304] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   304] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   304] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   304] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   304] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   304] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   304] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   304] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   304] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   304] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   304] exit_group(1)               = ?
[pid   304] +++ exited with 1 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=304, si_uid=0, si_status=1, si_utime=0, si_stime=6 /* 0.06 s */} ---
exit_group(0)                           = ?
+++ exited with 0 +++
[