./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2692879182 <...> Warning: Permanently added '10.128.0.94' (ED25519) to the list of known hosts. execve("./syz-executor2692879182", ["./syz-executor2692879182"], 0x7ffe3bd37760 /* 10 vars */) = 0 brk(NULL) = 0x5555698a8000 brk(0x5555698a8d00) = 0x5555698a8d00 arch_prctl(ARCH_SET_FS, 0x5555698a8380) = 0 set_tid_address(0x5555698a8650) = 5781 set_robust_list(0x5555698a8660, 24) = 0 rseq(0x5555698a8ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2692879182", 4096) = 28 getrandom("\x3c\x68\x0a\xb6\x19\x0f\x27\x93", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555698a8d00 brk(0x5555698c9d00) = 0x5555698c9d00 brk(0x5555698ca000) = 0x5555698ca000 mprotect(0x7fae36c97000, 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 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555698a8650) = 5782 ./strace-static-x86_64: Process 5782 attached [pid 5782] set_robust_list(0x5555698a8660, 24) = 0 [pid 5782] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5782] setpgid(0, 0) = 0 [pid 5782] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5782] write(3, "1000", 4) = 4 [pid 5782] close(3) = 0 [pid 5782] write(1, "executing program\n", 18executing program ) = 18 [pid 5782] openat(AT_FDCWD, "/sys/kernel/debug/binder/failed_transaction_log", O_RDONLY) = 3 [pid 5782] openat(AT_FDCWD, "/proc/self/fd/3", O_RDWR) = 4 [ 208.724547][ T5782] ===================================================== [ 208.732041][ T5782] BUG: KMSAN: uninit-value in full_proxy_write+0x101/0x3f0 [ 208.739440][ T5782] full_proxy_write+0x101/0x3f0 [ 208.744986][ T5782] vfs_write+0x48a/0x1540 [ 208.749506][ T5782] ksys_write+0x240/0x4b0 [ 208.754066][ T5782] __x64_sys_write+0x93/0xe0 [ 208.758828][ T5782] x64_sys_call+0x3161/0x3c30 [ 208.763777][ T5782] do_syscall_64+0xcd/0x1e0 [ 208.768561][ T5782] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 208.774788][ T5782] [ 208.777240][ T5782] Uninit was stored to memory at: [ 208.782609][ T5782] __debugfs_file_get+0xe59/0xef0 [ 208.787799][ T5782] full_proxy_open_regular+0x67/0xa00 [ 208.793417][ T5782] do_dentry_open+0x1bdd/0x26b0 [ 208.798485][ T5782] vfs_open+0x53/0x5b0 [ 208.802903][ T5782] path_openat+0x56a1/0x6250 [ 208.807664][ T5782] do_filp_open+0x268/0x600 [ 208.812392][ T5782] do_sys_openat2+0x1bf/0x2f0 [ 208.817264][ T5782] __x64_sys_openat+0x2a1/0x310 [ 208.822410][ T5782] x64_sys_call+0x36f5/0x3c30 [ 208.827298][ T5782] do_syscall_64+0xcd/0x1e0 [ 208.832180][ T5782] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 208.838307][ T5782] [ 208.840724][ T5782] Uninit was stored to memory at: [ 208.846138][ T5782] __debugfs_file_get+0xdff/0xef0 [ 208.851476][ T5782] full_proxy_open_regular+0x67/0xa00 [ 208.856975][ T5782] do_dentry_open+0x1bdd/0x26b0 [ 208.862168][ T5782] vfs_open+0x53/0x5b0 [ 208.866428][ T5782] path_openat+0x56a1/0x6250 [ 208.871134][ T5782] do_filp_open+0x268/0x600 [ 208.875943][ T5782] do_sys_openat2+0x1bf/0x2f0 [ 208.880817][ T5782] __x64_sys_openat+0x2a1/0x310 [ 208.886028][ T5782] x64_sys_call+0x36f5/0x3c30 [ 208.890902][ T5782] do_syscall_64+0xcd/0x1e0 [ 208.895736][ T5782] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 208.901932][ T5782] [ 208.904313][ T5782] Uninit was created at: [ 208.908757][ T5782] __kmalloc_cache_noprof+0x8e3/0xdf0 [ 208.914412][ T5782] __debugfs_file_get+0x31d/0xef0 [ 208.919663][ T5782] full_proxy_open_regular+0x67/0xa00 [ 208.925304][ T5782] do_dentry_open+0x1bdd/0x26b0 [ 208.930358][ T5782] vfs_open+0x53/0x5b0 [ 208.934761][ T5782] path_openat+0x56a1/0x6250 [ 208.939525][ T5782] do_filp_open+0x268/0x600 [ 208.944263][ T5782] do_sys_openat2+0x1bf/0x2f0 [ 208.949128][ T5782] __x64_sys_openat+0x2a1/0x310 [ 208.954335][ T5782] x64_sys_call+0x36f5/0x3c30 [ 208.959226][ T5782] do_syscall_64+0xcd/0x1e0 [ 208.964134][ T5782] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 208.970273][ T5782] [ 208.972825][ T5782] CPU: 1 UID: 0 PID: 5782 Comm: syz-executor269 Not tainted 6.13.0-syzkaller-09950-g60c828cf80c0 #0 [ 208.983873][ T5782] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 208.994205][ T5782] ===================================================== [ 209.001263][ T5782] Disabling lock debugging due to kernel taint [ 209.007681][ T5782] Kernel panic - not syncing: kmsan.panic set ... [ 209.014229][ T5782] CPU: 1 UID: 0 PID: 5782 Comm: syz-executor269 Tainted: G B 6.13.0-syzkaller-09950-g60c828cf80c0 #0 [ 209.026670][ T5782] Tainted: [B]=BAD_PAGE [ 209.030932][ T5782] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 209.041186][ T5782] Call Trace: [ 209.044598][ T5782] [ 209.047598][ T5782] dump_stack_lvl+0x216/0x2d0 [ 209.052393][ T5782] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 209.058349][ T5782] dump_stack+0x1e/0x24 [ 209.062639][ T5782] panic+0x4e2/0xcf0 [ 209.066677][ T5782] ? kmsan_get_metadata+0xf1/0x1c0 [ 209.071951][ T5782] kmsan_report+0x2c7/0x2d0 [ 209.076620][ T5782] ? kmsan_get_metadata+0x13e/0x1c0 [ 209.082049][ T5782] ? __msan_warning+0x95/0x120 [ 209.086933][ T5782] ? full_proxy_write+0x101/0x3f0 [ 209.092074][ T5782] ? vfs_write+0x48a/0x1540 [ 209.096684][ T5782] ? ksys_write+0x240/0x4b0 [ 209.101311][ T5782] ? __x64_sys_write+0x93/0xe0 [ 209.106244][ T5782] ? x64_sys_call+0x3161/0x3c30 [ 209.111260][ T5782] ? do_syscall_64+0xcd/0x1e0 [ 209.116150][ T5782] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 209.122401][ T5782] ? __rcu_read_unlock+0x7b/0xe0 [ 209.127550][ T5782] ? aa_file_perm+0x3de/0x1780 [ 209.132433][ T5782] ? finish_task_switch+0x1c8/0x8f0 [ 209.137759][ T5782] ? kmsan_get_metadata+0x13e/0x1c0 [ 209.143086][ T5782] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 209.149044][ T5782] ? end_current_label_crit_section+0x124/0x2a0 [ 209.155428][ T5782] ? common_file_perm+0x327/0x3c0 [ 209.160582][ T5782] ? kmsan_get_metadata+0x13e/0x1c0 [ 209.165930][ T5782] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 209.171890][ T5782] __msan_warning+0x95/0x120 [ 209.176603][ T5782] full_proxy_write+0x101/0x3f0 [ 209.181629][ T5782] ? __pfx_full_proxy_write+0x10/0x10 [ 209.187222][ T5782] vfs_write+0x48a/0x1540 [ 209.191670][ T5782] ? stack_depot_save_flags+0x2c/0x750 [ 209.197289][ T5782] ? kmsan_get_metadata+0x13e/0x1c0 [ 209.202636][ T5782] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 209.209145][ T5782] ksys_write+0x240/0x4b0 [ 209.213658][ T5782] ? kmsan_get_metadata+0x13e/0x1c0 [ 209.219008][ T5782] __x64_sys_write+0x93/0xe0 [ 209.223721][ T5782] x64_sys_call+0x3161/0x3c30 [ 209.228531][ T5782] do_syscall_64+0xcd/0x1e0 [ 209.233220][ T5782] ? clear_bhb_loop+0x25/0x80 [ 209.238051][ T5782] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 209.244174][ T5782] RIP: 0033:0x7fae36c24a79 [ 209.248691][ T5782] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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 b8 ff ff ff f7 d8 64 89 01 48 [ 209.268480][ T5782] RSP: 002b:00007ffec0de4ff8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 209.277048][ T5782] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fae36c24a79 [ 209.285158][ T5782] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 [ 209.293271][ T5782] RBP: 00007ffec0de5020 R08: 0000000000000000 R09: 0000000000000000 [ 209.301371][ T5782] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 209.309510][ T5782] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 209.317617][ T5782] [ 209.321237][ T5782] Kernel Offset: disabled [ 209.325665][ T5782] Rebooting in 86400 seconds..