ci2-android-6-1/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci2-android-6-1/syz-executor179967565 <...> Warning: Permanently added '10.128.1.71' (ED25519) to the list of known hosts. execve("ci2-android-6-1/syz-executor179967565", ["ci2-android-6-1/syz-executor179967565"], 0x7ffe82784ce0 /* 10 vars */) = 0 brk(NULL) = 0x555572c93000 brk(0x555572c93d40) = 0x555572c93d40 arch_prctl(ARCH_SET_FS, 0x555572c933c0) = 0 set_tid_address(0x555572c93690) = 309 set_robust_list(0x555572c936a0, 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-6-1/syz-executor179967565", 4096) = 43 getrandom("\xf8\xfa\x06\x95\x16\x87\xb6\xcf", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555572c93d40 brk(0x555572cb4d40) = 0x555572cb4d40 brk(0x555572cb5000) = 0x555572cb5000 mprotect(0x7f1d1bf6b000, 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=0x555572c93690) = 310 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 ci2-android-6-1/strace-static-x86_64: Process 310 attached [pid 310] set_robust_list(0x555572c936a0, 24) = 0 [pid 310] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 310] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 310] getppid() = 0 [pid 310] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 310] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 310] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 310] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 310] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 310] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 310] unshare(CLONE_NEWNS) = 0 [pid 310] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 310] unshare(CLONE_NEWIPC) = -1 EINVAL (Invalid argument) [pid 310] unshare(CLONE_NEWCGROUP) = 0 [pid 310] unshare(CLONE_NEWUTS) = 0 [pid 310] unshare(CLONE_SYSVSEM) = 0 [pid 310] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 310] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 310] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 310] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 310] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 310] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 310] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 310] getpid() = 1 [pid 310] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [ 32.785953][ T310] __dump_stack+0x21/0x24 [ 32.790291][ T310] dump_stack_lvl+0x110/0x170 [ 32.794976][ T310] ? __cfi_dump_stack_lvl+0x8/0x8 [ 32.800007][ T310] ? mutex_lock+0x86/0x1b0 [ 32.804434][ T310] print_address_description+0x71/0x200 [ 32.809987][ T310] print_report+0x4a/0x60 [ 32.814321][ T310] kasan_report+0x122/0x150 [ 32.818833][ T310] ? mutex_lock+0x86/0x1b0 [ 32.823260][ T310] kasan_check_range+0x249/0x2a0 [ 32.828207][ T310] __kasan_check_write+0x14/0x20 [ 32.833153][ T310] mutex_lock+0x86/0x1b0 [ 32.837416][ T310] ? __cfi_mutex_lock+0x10/0x10 [ 32.842276][ T310] ? kfree+0x6f/0xf0 [ 32.846169][ T310] ? l2tp_session_put+0xaf/0x1a0 [ 32.851105][ T310] ? l2tp_session_delete+0x3df/0x4d0 [ 32.856399][ T310] pppol2tp_release+0x178/0x2b0 [ 32.861253][ T310] sock_close+0xc9/0x220 [ 32.865509][ T310] ? __cfi_sock_close+0x10/0x10 [ 32.870417][ T310] __fput+0x1fd/0x8f0 [ 32.874413][ T310] ____fput+0x15/0x20 [ 32.878393][ T310] task_work_run+0x1e1/0x250 [ 32.882986][ T310] ? __cfi_task_work_run+0x10/0x10 [ 32.888115][ T310] ptrace_notify+0x23f/0x270 [ 32.892709][ T310] ? __cfi_task_work_add+0x10/0x10 [ 32.897819][ T310] ? __cfi_ptrace_notify+0x10/0x10 [ 32.902944][ T310] ? fput+0x15b/0x1a0 [ 32.906942][ T310] ? filp_close+0x111/0x160 [ 32.911484][ T310] syscall_exit_work+0x84/0x140 [ 32.916344][ T310] syscall_exit_to_user_mode_prepare+0x1c/0x20 [ 32.922523][ T310] syscall_exit_to_user_mode+0xd/0x30 [ 32.927899][ T310] do_syscall_64+0x58/0xa0 [ 32.932318][ T310] ? clear_bhb_loop+0x30/0x80 [ 32.936995][ T310] ? clear_bhb_loop+0x30/0x80 [ 32.941670][ T310] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 32.947572][ T310] RIP: 0033:0x7f1d1beea557 [ 32.951995][ T310] 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 [ 32.971603][ T310] RSP: 002b:00007ffc2f506fc0 EFLAGS: 00000202 ORIG_RAX: 0000000000000003 [ 32.980028][ T310] RAX: 0000000000000000 RBX: 0000555572c933c0 RCX: 00007f1d1beea557 [ 32.987997][ T310] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 [ 32.995968][ T310] RBP: 00007f1d1bf40126 R08: 0000000000000000 R09: 0000000000000000 [ 33.003935][ T310] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f1d1bf41df0 [ 33.011900][ T310] R13: 00007f1d1bf4008e R14: 00007f1d1bf6bbc0 R15: 0000000000000002 [ 33.019872][ T310] [ 33.022884][ T310] [ 33.025198][ T310] Allocated by task 310: [ 33.029455][ T310] kasan_set_track+0x4b/0x70 [ 33.034046][ T310] kasan_save_alloc_info+0x1f/0x30 [ 33.039147][ T310] __kasan_kmalloc+0x95/0xb0 [ 33.043731][ T310] __kmalloc+0xb4/0x1e0 [ 33.047879][ T310] l2tp_session_create+0x38/0xbd0 [ 33.052893][ T310] pppol2tp_connect+0xbf5/0x1640 [ 33.057827][ T310] __sys_connect+0x3da/0x460 [ 33.062416][ T310] __x64_sys_connect+0x7a/0x90 [ 33.067177][ T310] x64_sys_call+0x88d/0x9a0 [ 33.071673][ T310] do_syscall_64+0x4c/0xa0 [ 33.076086][ T310] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 33.081982][ T310] [ 33.084297][ T310] Freed by task 310: [ 33.088181][ T310] kasan_set_track+0x4b/0x70 [ 33.092783][ T310] kasan_save_free_info+0x2b/0x40 [ 33.097802][ T310] ____kasan_slab_free+0x132/0x180 [ 33.102935][ T310] __kasan_slab_free+0x11/0x20 [ 33.107695][ T310] slab_free_freelist_hook+0xc2/0x190 [ 33.113058][ T310] __kmem_cache_free+0xb7/0x1b0 [ 33.117906][ T310] kfree+0x6f/0xf0 [ 33.121619][ T310] l2tp_session_put+0xaf/0x1a0 [ 33.126370][ T310] l2tp_session_delete+0x3df/0x4d0 [ 33.131566][ T310] pppol2tp_release+0x169/0x2b0 [ 33.136411][ T310] sock_close+0xc9/0x220 [ 33.140653][ T310] __fput+0x1fd/0x8f0 [ 33.144639][ T310] ____fput+0x15/0x20 [ 33.148633][ T310] task_work_run+0x1e1/0x250 [ 33.153236][ T310] ptrace_notify+0x23f/0x270 [ 33.157834][ T310] syscall_exit_work+0x84/0x140 [ 33.162705][ T310] syscall_exit_to_user_mode_prepare+0x1c/0x20 [ 33.168853][ T310] syscall_exit_to_user_mode+0xd/0x30 [ 33.174220][ T310] do_syscall_64+0x58/0xa0 [ 33.178636][ T310] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 33.184531][ T310] [ 33.186850][ T310] The buggy address belongs to the object at ffff88811056dc00 [ 33.186850][ T310] which belongs to the cache kmalloc-512 of size 512 [ 33.200893][ T310] The buggy address is located 336 bytes inside of [ 33.200893][ T310] 512-byte region [ffff88811056dc00, ffff88811056de00) [ 33.214162][ T310] [ 33.216481][ T310] The buggy address belongs to the physical page: [ 33.222894][ T310] page:ffffea0004415b00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x11056c [ 33.233131][ T310] head:ffffea0004415b00 order:2 compound_mapcount:0 compound_pincount:0 [ 33.241617][ T310] flags: 0x4000000000010200(slab|head|zone=1) [ 33.247691][ T310] raw: 4000000000010200 dead000000000100 dead000000000122 ffff888100042f00 [ 33.256278][ T310] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 [ 33.264846][ T310] page dumped because: kasan: bad access detected [ 33.271243][ T310] page_owner tracks the page as allocated [ 33.276951][ T310] page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 91, tgid 91 (klogd), ts 5282610567, free_ts 0 [ 33.296389][ T310] post_alloc_hook+0x1f5/0x210 [ 33.301153][ T310] prep_new_page+0x1c/0x110 [ 33.305655][ T310] get_page_from_freelist+0x2ca9/0x2d20 [ 33.311201][ T310] __alloc_pages+0x1fa/0x610 [ 33.315788][ T310] alloc_slab_page+0x6e/0xf0 [ 33.320458][ T310] new_slab+0x98/0x3e0 [ 33.324518][ T310] ___slab_alloc+0x70f/0xb70 [ 33.329107][ T310] __slab_alloc+0x5e/0xa0 [ 33.333456][ T310] __kmem_cache_alloc_node+0x204/0x2d0 [ 33.338911][ T310] __kmalloc_node_track_caller+0xa1/0x1e0 [ 33.344626][ T310] __alloc_skb+0x226/0x4a0 [ 33.349034][ T310] alloc_skb_with_frags+0xa8/0x620 [ 33.354137][ T310] sock_alloc_send_pskb+0x87f/0x9a0 [ 33.359337][ T310] unix_dgram_sendmsg+0x5c1/0x1710 [ 33.364448][ T310] __sys_sendto+0x4ac/0x660 [ 33.368942][ T310] __x64_sys_sendto+0xe5/0x100 [ 33.373698][ T310] page_owner free stack trace missing [ 33.379066][ T310] [ 33.381493][ T310] Memory state around the buggy address: [ 33.387120][ T310] ffff88811056dc00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [pid 310] close(3) = 0 [pid 310] close(4) = 0 [pid 310] close(5) = -1 EBADF (Bad file descriptor) [ 33.395202][ T310] ffff88811056dc80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 33.403258][ T310] >ffff88811056dd00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 33.411308][ T310] ^ [ 33.417975][ T310] ffff88811056dd80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 33.426027][ T310] ffff88811056de00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 33.434094][ T310] ================================================================== [pid 310] close(6) = -1 EBADF (Bad file descriptor) [pid 310] close(7) = -1 EBADF (Bad file descriptor) [pid 310] close(8) = -1 EBADF (Bad file descriptor) [pid 310] close(9) = -1 EBADF (Bad file descriptor) [pid 310] close(10) = -1 EBADF (Bad file descriptor) [pid 310] close(11) = -1 EBADF (Bad file descriptor) [pid 310] close(12) = -1 EBADF (Bad file descriptor) [pid 310] close(13) = -1 EBADF (Bad file descriptor) [pid 310] close(14) = -1 EBADF (Bad file descriptor) [pid 310] close(15) = -1 EBADF (Bad file descriptor) [pid 310] close(16) = -1 EBADF (Bad file descriptor) [pid 310] close(17) = -1 EBADF (Bad file descriptor) [pid 310] close(18) = -1 EBADF (Bad file descriptor) [pid 310] close(19) = -1 EBADF (Bad file descriptor) [pid 310] close(20) = -1 EBADF (Bad file descriptor) [pid 310] close(21) = -1 EBADF (Bad file descriptor) [pid 310] close(22) = -1 EBADF (Bad file descriptor) [pid 310] close(23) = -1 EBADF (Bad file descriptor) [pid 310] close(24) = -1 EBADF (Bad file descriptor) [pid 310] close(25) = -1 EBADF (Bad file descriptor) [pid 310] close(26) = -1 EBADF (Bad file descriptor) [pid 310] close(27) = -1 EBADF (Bad file descriptor) [pid 310] close(28) = -1 EBADF (Bad file descriptor) [pid 310] close(29) = -1 EBADF (Bad file descriptor) [pid 310] exit_group(1) = ? [pid 310] +++ exited with 1 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=310, si_uid=0, si_status=1, si_utime=0, si_stime=11 /* 0.11 s */} --- exit_group(0) = ? +++ exited with 0 +++ [ 33.442693][ T310] Disabling lock debugging due to ker