./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3034145489 <...> Warning: Permanently added '10.128.1.5' (ED25519) to the list of known hosts. execve("./syz-executor3034145489", ["./syz-executor3034145489"], 0x7ffe724eedb0 /* 10 vars */) = 0 brk(NULL) = 0x555572fa2000 brk(0x555572fa2d00) = 0x555572fa2d00 arch_prctl(ARCH_SET_FS, 0x555572fa2380) = 0 set_tid_address(0x555572fa2650) = 5777 set_robust_list(0x555572fa2660, 24) = 0 rseq(0x555572fa2ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3034145489", 4096) = 28 getrandom("\x1e\xf3\xca\xf0\xd5\xbc\xf1\x0e", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555572fa2d00 brk(0x555572fc3d00) = 0x555572fc3d00 brk(0x555572fc4000) = 0x555572fc4000 mprotect(0x7efda8bed000, 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=0x555572fa2650) = 5778 ./strace-static-x86_64: Process 5778 attached [pid 5778] set_robust_list(0x555572fa2660, 24) = 0 [pid 5778] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5778] setpgid(0, 0) = 0 [pid 5778] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5778] write(3, "1000", 4) = 4 [pid 5778] close(3) = 0 [pid 5778] write(1, "executing program\n", 18executing program ) = 18 [pid 5778] openat(AT_FDCWD, "/sys/kernel/debug/bluetooth/6lowpan_control", O_RDWR) = 3 [pid 5778] epoll_create(15) = 4 [ 210.061785][ T5778] ===================================================== [ 210.070173][ T5778] BUG: KMSAN: uninit-value in full_proxy_poll+0xdf/0x3b0 [ 210.077758][ T5778] full_proxy_poll+0xdf/0x3b0 [ 210.082723][ T5778] ep_insert+0x19c7/0x2740 [ 210.087341][ T5778] do_epoll_ctl+0xd83/0x17f0 [ 210.092061][ T5778] __x64_sys_epoll_ctl+0x1b5/0x210 [ 210.097517][ T5778] x64_sys_call+0x1658/0x3c30 [ 210.102506][ T5778] do_syscall_64+0xcd/0x1e0 [ 210.107185][ T5778] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 210.113439][ T5778] [ 210.115880][ T5778] Uninit was stored to memory at: [ 210.121127][ T5778] __debugfs_file_get+0xe86/0xef0 [ 210.126455][ T5778] full_proxy_open_regular+0x67/0xa00 [ 210.132016][ T5778] do_dentry_open+0x1bdd/0x26b0 [ 210.137134][ T5778] vfs_open+0x53/0x5b0 [ 210.141426][ T5778] path_openat+0x56a1/0x6250 [ 210.146311][ T5778] do_filp_open+0x268/0x600 [ 210.150988][ T5778] do_sys_openat2+0x1bf/0x2f0 [ 210.155936][ T5778] __x64_sys_openat+0x2a1/0x310 [ 210.161022][ T5778] x64_sys_call+0x36f5/0x3c30 [ 210.165987][ T5778] do_syscall_64+0xcd/0x1e0 [ 210.170711][ T5778] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 210.177013][ T5778] [ 210.179449][ T5778] Uninit was stored to memory at: [ 210.184813][ T5778] __debugfs_file_get+0xe59/0xef0 [ 210.190002][ T5778] full_proxy_open_regular+0x67/0xa00 [ 210.195621][ T5778] do_dentry_open+0x1bdd/0x26b0 [ 210.200675][ T5778] vfs_open+0x53/0x5b0 [ 210.204990][ T5778] path_openat+0x56a1/0x6250 [ 210.209768][ T5778] do_filp_open+0x268/0x600 [ 210.214560][ T5778] do_sys_openat2+0x1bf/0x2f0 [ 210.219444][ T5778] __x64_sys_openat+0x2a1/0x310 [ 210.224570][ T5778] x64_sys_call+0x36f5/0x3c30 [ 210.229432][ T5778] do_syscall_64+0xcd/0x1e0 [ 210.234335][ T5778] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 210.240449][ T5778] [ 210.242957][ T5778] Uninit was stored to memory at: [ 210.248173][ T5778] __debugfs_file_get+0xdff/0xef0 [ 210.253451][ T5778] full_proxy_open_regular+0x67/0xa00 [ 210.259015][ T5778] do_dentry_open+0x1bdd/0x26b0 [ 210.264122][ T5778] vfs_open+0x53/0x5b0 [ 210.268404][ T5778] path_openat+0x56a1/0x6250 [ 210.273317][ T5778] do_filp_open+0x268/0x600 [ 210.277984][ T5778] do_sys_openat2+0x1bf/0x2f0 [ 210.282939][ T5778] __x64_sys_openat+0x2a1/0x310 [ 210.287997][ T5778] x64_sys_call+0x36f5/0x3c30 [ 210.293002][ T5778] do_syscall_64+0xcd/0x1e0 [ 210.297736][ T5778] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 210.303932][ T5778] [ 210.306366][ T5778] Uninit was created at: [ 210.310781][ T5778] __kmalloc_cache_noprof+0x8e3/0xdf0 [ 210.316435][ T5778] __debugfs_file_get+0x31d/0xef0 [ 210.321650][ T5778] full_proxy_open_regular+0x67/0xa00 [ 210.327280][ T5778] do_dentry_open+0x1bdd/0x26b0 [ 210.332426][ T5778] vfs_open+0x53/0x5b0 [ 210.336690][ T5778] path_openat+0x56a1/0x6250 [ 210.341388][ T5778] do_filp_open+0x268/0x600 [ 210.346133][ T5778] do_sys_openat2+0x1bf/0x2f0 [ 210.351048][ T5778] __x64_sys_openat+0x2a1/0x310 [ 210.356214][ T5778] x64_sys_call+0x36f5/0x3c30 [ 210.361125][ T5778] do_syscall_64+0xcd/0x1e0 [ 210.366015][ T5778] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 210.372187][ T5778] [ 210.374745][ T5778] CPU: 0 UID: 0 PID: 5778 Comm: syz-executor303 Not tainted 6.13.0-syzkaller-09585-gb4b0881156fb #0 [ 210.385783][ T5778] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 210.396116][ T5778] ===================================================== [ 210.403281][ T5778] Disabling lock debugging due to kernel taint [ 210.409539][ T5778] Kernel panic - not syncing: kmsan.panic set ... [ 210.416052][ T5778] CPU: 0 UID: 0 PID: 5778 Comm: syz-executor303 Tainted: G B 6.13.0-syzkaller-09585-gb4b0881156fb #0 [ 210.428435][ T5778] Tainted: [B]=BAD_PAGE [ 210.432661][ T5778] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 210.442850][ T5778] Call Trace: [ 210.446244][ T5778] [ 210.449246][ T5778] dump_stack_lvl+0x216/0x2d0 [ 210.454066][ T5778] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 210.460102][ T5778] dump_stack+0x1e/0x24 [ 210.464377][ T5778] panic+0x4e2/0xcf0 [ 210.468429][ T5778] ? kmsan_get_metadata+0x61/0x1c0 [ 210.473691][ T5778] kmsan_report+0x2c7/0x2d0 [ 210.478329][ T5778] ? kmsan_get_metadata+0x13e/0x1c0 [ 210.483670][ T5778] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 210.489630][ T5778] ? __msan_warning+0x95/0x120 [ 210.494535][ T5778] ? full_proxy_poll+0xdf/0x3b0 [ 210.499527][ T5778] ? ep_insert+0x19c7/0x2740 [ 210.504324][ T5778] ? do_epoll_ctl+0xd83/0x17f0 [ 210.509234][ T5778] ? __x64_sys_epoll_ctl+0x1b5/0x210 [ 210.514685][ T5778] ? x64_sys_call+0x1658/0x3c30 [ 210.519667][ T5778] ? do_syscall_64+0xcd/0x1e0 [ 210.524514][ T5778] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 210.530801][ T5778] ? kmsan_get_metadata+0x13e/0x1c0 [ 210.536172][ T5778] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 210.542176][ T5778] ? kmem_cache_alloc_noprof+0x73/0xe10 [ 210.547922][ T5778] ? filter_irq_stacks+0x60/0x1a0 [ 210.553108][ T5778] ? stack_depot_save_flags+0x2c/0x750 [ 210.558740][ T5778] ? kmsan_get_metadata+0x13e/0x1c0 [ 210.564142][ T5778] ? kmsan_get_metadata+0x13e/0x1c0 [ 210.569497][ T5778] ? kmsan_get_metadata+0x13e/0x1c0 [ 210.574898][ T5778] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 210.581422][ T5778] ? kmsan_get_metadata+0x13e/0x1c0 [ 210.586828][ T5778] ? kmsan_get_metadata+0x13e/0x1c0 [ 210.592174][ T5778] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 210.598122][ T5778] __msan_warning+0x95/0x120 [ 210.602852][ T5778] full_proxy_poll+0xdf/0x3b0 [ 210.607654][ T5778] ? __pfx_full_proxy_poll+0x10/0x10 [ 210.613080][ T5778] ep_insert+0x19c7/0x2740 [ 210.617696][ T5778] ? kmsan_get_metadata+0x13e/0x1c0 [ 210.623021][ T5778] ? kmsan_get_metadata+0x13e/0x1c0 [ 210.628384][ T5778] ? kmsan_get_metadata+0x13e/0x1c0 [ 210.633783][ T5778] ? __pfx_ep_ptable_queue_proc+0x10/0x10 [ 210.639705][ T5778] do_epoll_ctl+0xd83/0x17f0 [ 210.644502][ T5778] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 210.651061][ T5778] __x64_sys_epoll_ctl+0x1b5/0x210 [ 210.656415][ T5778] x64_sys_call+0x1658/0x3c30 [ 210.661222][ T5778] do_syscall_64+0xcd/0x1e0 [ 210.665886][ T5778] ? clear_bhb_loop+0x25/0x80 [ 210.670708][ T5778] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 210.676753][ T5778] RIP: 0033:0x7efda8b7aa39 [ 210.681263][ T5778] 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 [ 210.701047][ T5778] RSP: 002b:00007ffc56ac2e78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e9 [ 210.709639][ T5778] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007efda8b7aa39 [ 210.717771][ T5778] RDX: 0000000000000003 RSI: 0000000000000001 RDI: 0000000000000004 [ 210.725856][ T5778] RBP: 00007efda8bed5f0 R08: 0000000000000006 R09: 0000000000000006 [ 210.733931][ T5778] R10: 00000000200000c0 R11: 0000000000000246 R12: 0000000000000001 [ 210.742004][ T5778] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 210.750101][ T5778] [ 210.753371][ T5778] Kernel Offset: disabled [ 210.757791][ T5778] Rebooting in 86400 seconds..