./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor250717311 <...> Warning: Permanently added '10.128.0.222' (ED25519) to the list of known hosts. execve("./syz-executor250717311", ["./syz-executor250717311"], 0x7ffd7612fb90 /* 10 vars */) = 0 brk(NULL) = 0x55556896a000 brk(0x55556896ad40) = 0x55556896ad40 arch_prctl(ARCH_SET_FS, 0x55556896a3c0) = 0 set_tid_address(0x55556896a690) = 5782 set_robust_list(0x55556896a6a0, 24) = 0 rseq(0x55556896ace0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor250717311", 4096) = 27 getrandom("\x94\x17\xf9\xe9\x66\xe6\x89\x68", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556896ad40 brk(0x55556898bd40) = 0x55556898bd40 brk(0x55556898c000) = 0x55556898c000 mprotect(0x7f308dcf8000, 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 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556896a690) = 5783 ./strace-static-x86_64: Process 5783 attached [pid 5783] set_robust_list(0x55556896a6a0, 24) = 0 [pid 5783] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5783] setpgid(0, 0) = 0 [pid 5783] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5783] write(3, "1000", 4) = 4 executing program [pid 5783] close(3) = 0 [pid 5783] write(1, "executing program\n", 18) = 18 [pid 5783] futex(0x7f308dcfe5ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5783] rt_sigaction(SIGRT_1, {sa_handler=0x7f308dc97230, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f308dc888e0}, NULL, 8) = 0 [pid 5783] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5783] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f308dc08000 [pid 5783] mprotect(0x7f308dc09000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5783] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5783] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f308dc28990, parent_tid=0x7f308dc28990, exit_signal=0, stack=0x7f308dc08000, stack_size=0x20300, tls=0x7f308dc286c0}./strace-static-x86_64: Process 5784 attached => {parent_tid=[5784]}, 88) = 5784 [pid 5783] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5783] futex(0x7f308dcfe5e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5784] rseq(0x7f308dc28fe0, 0x20, 0, 0x53053053 [pid 5783] <... futex resumed>) = 0 [pid 5784] <... rseq resumed>) = 0 [pid 5784] set_robust_list(0x7f308dc289a0, 24 [pid 5783] futex(0x7f308dcfe5ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5784] <... set_robust_list resumed>) = 0 [pid 5784] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5784] memfd_create("syzkaller", 0) = 3 [pid 5784] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3085800000 [pid 5784] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5784] munmap(0x7f3085800000, 138412032) = 0 [pid 5784] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5784] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5784] close(3) = 0 [pid 5784] close(4) = 0 [pid 5784] mkdir("./file1", 0777) = 0 [ 182.069987][ T5784] loop0: detected capacity change from 0 to 32768 [ 182.242399][ T5784] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=errors=continue,metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names [ 182.259465][ T5784] bcachefs (loop0): initializing new filesystem [ 182.271758][ T5784] bcachefs (loop0): going read-write [ 182.280517][ T5784] bcachefs (loop0): marking superblocks [ 182.306963][ T5784] ===================================================== [ 182.314339][ T5784] BUG: KMSAN: uninit-value in rw_aux_tree_set+0x4d2/0x580 [ 182.321830][ T5784] rw_aux_tree_set+0x4d2/0x580 [ 182.326758][ T5784] rw_aux_tree_insert_entry+0x6c3/0x970 [ 182.332743][ T5784] bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 182.338746][ T5784] bch2_bset_insert+0x1621/0x19f0 [ 182.344020][ T5784] bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 182.350049][ T5784] bch2_btree_insert_key_leaf+0x276/0x1050 [ 182.356148][ T5784] __bch2_trans_commit+0xaf5e/0xd190 [ 182.361786][ T5784] bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 182.368218][ T5784] bch2_trans_mark_dev_sb+0x858/0x10e0 [ 182.373946][ T5784] bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 182.380216][ T5784] bch2_trans_mark_dev_sbs+0x32/0x40 [ 182.385751][ T5784] bch2_fs_initialize+0x19bd/0x35d0 [ 182.391120][ T5784] bch2_fs_start+0x77d/0xbd0 [ 182.396072][ T5784] bch2_fs_get_tree+0x13ea/0x22d0 [ 182.401260][ T5784] vfs_get_tree+0xb1/0x5a0 [ 182.405985][ T5784] do_new_mount+0x71f/0x15e0 [ 182.410717][ T5784] path_mount+0x742/0x1f10 [ 182.415468][ T5784] __se_sys_mount+0x722/0x810 [ 182.420303][ T5784] __x64_sys_mount+0xe4/0x150 [ 182.425212][ T5784] x64_sys_call+0x39bf/0x3c30 [ 182.430078][ T5784] do_syscall_64+0xcd/0x1e0 [ 182.434844][ T5784] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 182.440937][ T5784] [ 182.443435][ T5784] Uninit was created at: [ 182.447866][ T5784] ___kmalloc_large_node+0x22c/0x370 [ 182.453486][ T5784] __kmalloc_large_node_noprof+0x3f/0x1e0 [ 182.459413][ T5784] __kmalloc_node_noprof+0xc96/0x1250 [ 182.465045][ T5784] __kvmalloc_node_noprof+0xc0/0x2d0 [ 182.470562][ T5784] __bch2_btree_node_mem_alloc+0x2be/0xa80 [ 182.476655][ T5784] bch2_fs_btree_cache_init+0x4e4/0xb50 [ 182.482458][ T5784] bch2_fs_open+0x4d3a/0x5b40 [ 182.487231][ T5784] bch2_fs_get_tree+0x983/0x22d0 [ 182.492425][ T5784] vfs_get_tree+0xb1/0x5a0 [ 182.497116][ T5784] do_new_mount+0x71f/0x15e0 [ 182.501981][ T5784] path_mount+0x742/0x1f10 [ 182.506795][ T5784] __se_sys_mount+0x722/0x810 [ 182.511978][ T5784] __x64_sys_mount+0xe4/0x150 [ 182.516813][ T5784] x64_sys_call+0x39bf/0x3c30 [ 182.521785][ T5784] do_syscall_64+0xcd/0x1e0 [ 182.526444][ T5784] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 182.532640][ T5784] [ 182.535152][ T5784] CPU: 1 UID: 0 PID: 5784 Comm: syz-executor250 Not tainted 6.13.0-rc4-syzkaller-00110-g4099a71718b0 #0 [ 182.546540][ T5784] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 182.556889][ T5784] ===================================================== [ 182.564064][ T5784] Disabling lock debugging due to kernel taint [ 182.570326][ T5784] Kernel panic - not syncing: kmsan.panic set ... [ 182.576852][ T5784] CPU: 1 UID: 0 PID: 5784 Comm: syz-executor250 Tainted: G B 6.13.0-rc4-syzkaller-00110-g4099a71718b0 #0 [ 182.589655][ T5784] Tainted: [B]=BAD_PAGE [ 182.593861][ T5784] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 182.604015][ T5784] Call Trace: [ 182.607358][ T5784] [ 182.610345][ T5784] dump_stack_lvl+0x216/0x2d0 [ 182.615151][ T5784] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 182.621071][ T5784] dump_stack+0x1e/0x24 [ 182.625341][ T5784] panic+0x4e2/0xcf0 [ 182.629348][ T5784] ? kmsan_get_metadata+0x111/0x1c0 [ 182.634691][ T5784] kmsan_report+0x2c7/0x2d0 [ 182.639344][ T5784] ? _raw_spin_unlock_irqrestore+0x3f/0x60 [ 182.645307][ T5784] ? __msan_warning+0x95/0x120 [ 182.650270][ T5784] ? rw_aux_tree_set+0x4d2/0x580 [ 182.655307][ T5784] ? rw_aux_tree_insert_entry+0x6c3/0x970 [ 182.661131][ T5784] ? bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 182.667217][ T5784] ? bch2_bset_insert+0x1621/0x19f0 [ 182.672514][ T5784] ? bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 182.678636][ T5784] ? bch2_btree_insert_key_leaf+0x276/0x1050 [ 182.684735][ T5784] ? __bch2_trans_commit+0xaf5e/0xd190 [ 182.690307][ T5784] ? bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 182.696847][ T5784] ? bch2_trans_mark_dev_sb+0x858/0x10e0 [ 182.702624][ T5784] ? bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 182.708976][ T5784] ? bch2_trans_mark_dev_sbs+0x32/0x40 [ 182.714588][ T5784] ? bch2_fs_initialize+0x19bd/0x35d0 [ 182.720221][ T5784] ? bch2_fs_start+0x77d/0xbd0 [ 182.725141][ T5784] ? bch2_fs_get_tree+0x13ea/0x22d0 [ 182.730542][ T5784] ? vfs_get_tree+0xb1/0x5a0 [ 182.735258][ T5784] ? do_new_mount+0x71f/0x15e0 [ 182.740113][ T5784] ? path_mount+0x742/0x1f10 [ 182.744828][ T5784] ? __se_sys_mount+0x722/0x810 [ 182.749772][ T5784] ? __x64_sys_mount+0xe4/0x150 [ 182.754715][ T5784] ? x64_sys_call+0x39bf/0x3c30 [ 182.759713][ T5784] ? do_syscall_64+0xcd/0x1e0 [ 182.764543][ T5784] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 182.770856][ T5784] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 182.776848][ T5784] ? filter_irq_stacks+0x164/0x1a0 [ 182.782116][ T5784] ? stack_depot_save_flags+0x2c/0x750 [ 182.787768][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 182.793094][ T5784] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 182.799639][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 182.804971][ T5784] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 182.810954][ T5784] __msan_warning+0x95/0x120 [ 182.815706][ T5784] rw_aux_tree_set+0x4d2/0x580 [ 182.820629][ T5784] ? bset_aux_tree_verify+0x44d/0x4a0 [ 182.826109][ T5784] rw_aux_tree_insert_entry+0x6c3/0x970 [ 182.831787][ T5784] bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 182.837702][ T5784] ? bch2_bkey_pack_key+0x1745/0x1860 [ 182.843227][ T5784] bch2_bset_insert+0x1621/0x19f0 [ 182.848356][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 182.853673][ T5784] bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 182.859605][ T5784] ? __msan_memcpy+0x108/0x1c0 [ 182.864519][ T5784] bch2_btree_insert_key_leaf+0x276/0x1050 [ 182.870471][ T5784] __bch2_trans_commit+0xaf5e/0xd190 [ 182.875905][ T5784] bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 182.882289][ T5784] ? bch2_trans_start_alloc_update_noupdate+0x179/0x12f0 [ 182.889457][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 182.894782][ T5784] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 182.900726][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 182.906029][ T5784] ? kmsan_save_stack_with_flags+0x10/0x60 [ 182.911983][ T5784] bch2_trans_mark_dev_sb+0x858/0x10e0 [ 182.917624][ T5784] bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 182.923743][ T5784] bch2_trans_mark_dev_sbs+0x32/0x40 [ 182.929158][ T5784] bch2_fs_initialize+0x19bd/0x35d0 [ 182.934470][ T5784] ? kmsan_internal_poison_memory+0x49/0x90 [ 182.940492][ T5784] ? kmsan_slab_free+0xd0/0x140 [ 182.945490][ T5784] ? kfree+0x240/0xdb0 [ 182.949672][ T5784] ? bch2_printbuf_exit+0x9b/0xd0 [ 182.954819][ T5784] ? print_mount_opts+0x4ca/0x4f0 [ 182.959977][ T5784] ? bch2_fs_start+0x59/0xbd0 [ 182.964803][ T5784] ? bch2_fs_get_tree+0x13ea/0x22d0 [ 182.970186][ T5784] ? vfs_get_tree+0xb1/0x5a0 [ 182.974901][ T5784] ? do_new_mount+0x71f/0x15e0 [ 182.979797][ T5784] ? path_mount+0x742/0x1f10 [ 182.984514][ T5784] ? __se_sys_mount+0x722/0x810 [ 182.989463][ T5784] ? __x64_sys_mount+0xe4/0x150 [ 182.994405][ T5784] ? x64_sys_call+0x39bf/0x3c30 [ 182.999381][ T5784] ? do_syscall_64+0xcd/0x1e0 [ 183.004192][ T5784] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 183.010417][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.015763][ T5784] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 183.021694][ T5784] ? kfree+0x1a7/0xdb0 [ 183.025939][ T5784] ? filter_irq_stacks+0x60/0x1a0 [ 183.031092][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.036392][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.041713][ T5784] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 183.047627][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.052923][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.058230][ T5784] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 183.064140][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.069446][ T5784] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 183.075913][ T5784] ? llist_reverse_order+0x102/0x130 [ 183.081305][ T5784] ? kmsan_internal_unpoison_memory+0x14/0x20 [ 183.087514][ T5784] ? __closure_wake_up+0x16a/0x180 [ 183.092772][ T5784] bch2_fs_start+0x77d/0xbd0 [ 183.097519][ T5784] bch2_fs_get_tree+0x13ea/0x22d0 [ 183.102699][ T5784] vfs_get_tree+0xb1/0x5a0 [ 183.107240][ T5784] ? mount_capable+0x97/0x120 [ 183.112028][ T5784] do_new_mount+0x71f/0x15e0 [ 183.116715][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.122146][ T5784] path_mount+0x742/0x1f10 [ 183.126699][ T5784] ? user_path_at+0x374/0x3e0 [ 183.131501][ T5784] __se_sys_mount+0x722/0x810 [ 183.136315][ T5784] ? ptrace_notify+0x263/0x320 [ 183.141242][ T5784] __x64_sys_mount+0xe4/0x150 [ 183.146021][ T5784] x64_sys_call+0x39bf/0x3c30 [ 183.150833][ T5784] do_syscall_64+0xcd/0x1e0 [ 183.155440][ T5784] ? clear_bhb_loop+0x25/0x80 [ 183.160273][ T5784] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 183.166306][ T5784] RIP: 0033:0x7f308dc7276a [ 183.170811][ T5784] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 183.190550][ T5784] RSP: 002b:00007f308dc28088 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 183.199106][ T5784] RAX: ffffffffffffffda RBX: 00007f308dc280a0 RCX: 00007f308dc7276a [ 183.207212][ T5784] RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 00007f308dc280a0 [ 183.215302][ T5784] RBP: 0000000000000004 R08: 00007f308dc280e0 R09: 00000000000059e7 [ 183.223415][ T5784] R10: 0000000000000010 R11: 0000000000000282 R12: 00007f308dc280e0 [ 183.231476][ T5784] R13: 0000000000000010 R14: 0000000000000003 R15: 0000000001000000 [ 183.239549][ T5784] [ 183.242937][ T5784] Kernel Offset: disabled [ 183.247353][ T5784] Rebooting in 86400 seconds..