./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor645546462 <...> Warning: Permanently added '10.128.1.118' (ED25519) to the list of known hosts. execve("./syz-executor645546462", ["./syz-executor645546462"], 0x7ffc020ef0d0 /* 10 vars */) = 0 brk(NULL) = 0x55558ea76000 brk(0x55558ea76d00) = 0x55558ea76d00 arch_prctl(ARCH_SET_FS, 0x55558ea76380) = 0 set_tid_address(0x55558ea76650) = 5769 set_robust_list(0x55558ea76660, 24) = 0 rseq(0x55558ea76ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor645546462", 4096) = 27 getrandom("\x20\x5a\x71\xe6\x7c\x87\x52\x22", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55558ea76d00 brk(0x55558ea97d00) = 0x55558ea97d00 brk(0x55558ea98000) = 0x55558ea98000 mprotect(0x7fe590a16000, 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=0x55558ea76650) = 5770 ./strace-static-x86_64: Process 5770 attached [pid 5770] set_robust_list(0x55558ea76660, 24) = 0 [pid 5770] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5770] setpgid(0, 0) = 0 [pid 5770] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5770] write(3, "1000", 4) = 4 [pid 5770] close(3) = 0 executing program [pid 5770] write(1, "executing program\n", 18) = 18 [pid 5770] memfd_create("syzkaller", 0) = 3 [pid 5770] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fe588400000 [pid 5770] 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 5770] munmap(0x7fe588400000, 138412032) = 0 [pid 5770] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5770] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5770] close(3) = 0 [pid 5770] close(4) = 0 [pid 5770] mkdir("./file1", 0777) = 0 [ 185.879147][ T5770] loop0: detected capacity change from 0 to 32768 [ 186.009483][ T5770] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=errors=continue,metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names [ 186.026931][ T5770] bcachefs (loop0): initializing new filesystem [ 186.040334][ T5770] bcachefs (loop0): going read-write [ 186.048738][ T5770] bcachefs (loop0): marking superblocks [ 186.074346][ T5770] ===================================================== [ 186.081715][ T5770] BUG: KMSAN: uninit-value in rw_aux_tree_set+0x4d2/0x580 [ 186.088937][ T5770] rw_aux_tree_set+0x4d2/0x580 [ 186.093977][ T5770] rw_aux_tree_insert_entry+0x6c3/0x970 [ 186.099695][ T5770] bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 186.105738][ T5770] bch2_bset_insert+0x1621/0x19f0 [ 186.110908][ T5770] bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 186.116963][ T5770] bch2_btree_insert_key_leaf+0x276/0x1050 [ 186.123003][ T5770] __bch2_trans_commit+0xaf5e/0xd190 [ 186.128465][ T5770] bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 186.134939][ T5770] bch2_trans_mark_dev_sb+0x858/0x10e0 [ 186.140570][ T5770] bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 186.146859][ T5770] bch2_trans_mark_dev_sbs+0x32/0x40 [ 186.152398][ T5770] bch2_fs_initialize+0x19bd/0x35d0 [ 186.157705][ T5770] bch2_fs_start+0x77d/0xbd0 [ 186.162536][ T5770] bch2_fs_get_tree+0x13ea/0x22d0 [ 186.167723][ T5770] vfs_get_tree+0xb1/0x5a0 [ 186.172357][ T5770] do_new_mount+0x71f/0x15e0 [ 186.177119][ T5770] path_mount+0x742/0x1f10 [ 186.181842][ T5770] __se_sys_mount+0x722/0x810 [ 186.186719][ T5770] __x64_sys_mount+0xe4/0x150 [ 186.191605][ T5770] x64_sys_call+0x39bf/0x3c30 [ 186.196477][ T5770] do_syscall_64+0xcd/0x1e0 [ 186.201234][ T5770] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 186.207353][ T5770] [ 186.209720][ T5770] Uninit was created at: [ 186.214355][ T5770] ___kmalloc_large_node+0x22c/0x370 [ 186.219833][ T5770] __kmalloc_large_node_noprof+0x3f/0x1e0 [ 186.225865][ T5770] __kmalloc_node_noprof+0xc96/0x1250 [ 186.231482][ T5770] __kvmalloc_node_noprof+0xc0/0x2d0 [ 186.236861][ T5770] __bch2_btree_node_mem_alloc+0x2be/0xa80 [ 186.242893][ T5770] bch2_fs_btree_cache_init+0x4e4/0xb50 [ 186.248614][ T5770] bch2_fs_open+0x4d3a/0x5b40 [ 186.253494][ T5770] bch2_fs_get_tree+0x983/0x22d0 [ 186.258650][ T5770] vfs_get_tree+0xb1/0x5a0 [ 186.263322][ T5770] do_new_mount+0x71f/0x15e0 [ 186.268083][ T5770] path_mount+0x742/0x1f10 [ 186.272835][ T5770] __se_sys_mount+0x722/0x810 [ 186.277654][ T5770] __x64_sys_mount+0xe4/0x150 [ 186.282545][ T5770] x64_sys_call+0x39bf/0x3c30 [ 186.287419][ T5770] do_syscall_64+0xcd/0x1e0 [ 186.292111][ T5770] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 186.298196][ T5770] [ 186.300586][ T5770] CPU: 0 UID: 0 PID: 5770 Comm: syz-executor645 Not tainted 6.13.0-rc4-syzkaller-00110-g4099a71718b0 #0 [ 186.311939][ T5770] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 186.322191][ T5770] ===================================================== [ 186.329178][ T5770] Disabling lock debugging due to kernel taint [ 186.335595][ T5770] Kernel panic - not syncing: kmsan.panic set ... [ 186.342127][ T5770] CPU: 0 UID: 0 PID: 5770 Comm: syz-executor645 Tainted: G B 6.13.0-rc4-syzkaller-00110-g4099a71718b0 #0 [ 186.354833][ T5770] Tainted: [B]=BAD_PAGE [ 186.359036][ T5770] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 186.369173][ T5770] Call Trace: [ 186.372543][ T5770] [ 186.375562][ T5770] dump_stack_lvl+0x216/0x2d0 [ 186.380353][ T5770] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 186.386267][ T5770] dump_stack+0x1e/0x24 [ 186.390529][ T5770] panic+0x4e2/0xcf0 [ 186.394565][ T5770] ? kmsan_get_metadata+0x111/0x1c0 [ 186.399932][ T5770] kmsan_report+0x2c7/0x2d0 [ 186.404521][ T5770] ? _raw_spin_unlock_irqrestore+0x3f/0x60 [ 186.410459][ T5770] ? __msan_warning+0x95/0x120 [ 186.415346][ T5770] ? rw_aux_tree_set+0x4d2/0x580 [ 186.420382][ T5770] ? rw_aux_tree_insert_entry+0x6c3/0x970 [ 186.426217][ T5770] ? bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 186.432321][ T5770] ? bch2_bset_insert+0x1621/0x19f0 [ 186.437633][ T5770] ? bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 186.443723][ T5770] ? bch2_btree_insert_key_leaf+0x276/0x1050 [ 186.449838][ T5770] ? __bch2_trans_commit+0xaf5e/0xd190 [ 186.455402][ T5770] ? bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 186.461944][ T5770] ? bch2_trans_mark_dev_sb+0x858/0x10e0 [ 186.467753][ T5770] ? bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 186.474050][ T5770] ? bch2_trans_mark_dev_sbs+0x32/0x40 [ 186.479711][ T5770] ? bch2_fs_initialize+0x19bd/0x35d0 [ 186.485216][ T5770] ? bch2_fs_start+0x77d/0xbd0 [ 186.490177][ T5770] ? bch2_fs_get_tree+0x13ea/0x22d0 [ 186.495490][ T5770] ? vfs_get_tree+0xb1/0x5a0 [ 186.500213][ T5770] ? do_new_mount+0x71f/0x15e0 [ 186.505068][ T5770] ? path_mount+0x742/0x1f10 [ 186.509788][ T5770] ? __se_sys_mount+0x722/0x810 [ 186.514728][ T5770] ? __x64_sys_mount+0xe4/0x150 [ 186.519689][ T5770] ? x64_sys_call+0x39bf/0x3c30 [ 186.524734][ T5770] ? do_syscall_64+0xcd/0x1e0 [ 186.529498][ T5770] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 186.535692][ T5770] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 186.541635][ T5770] ? filter_irq_stacks+0x164/0x1a0 [ 186.546950][ T5770] ? stack_depot_save_flags+0x2c/0x750 [ 186.552521][ T5770] ? kmsan_get_metadata+0x13e/0x1c0 [ 186.557818][ T5770] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 186.564317][ T5770] ? kmsan_get_metadata+0x13e/0x1c0 [ 186.569674][ T5770] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 186.575610][ T5770] __msan_warning+0x95/0x120 [ 186.580394][ T5770] rw_aux_tree_set+0x4d2/0x580 [ 186.585281][ T5770] ? bset_aux_tree_verify+0x44d/0x4a0 [ 186.590761][ T5770] rw_aux_tree_insert_entry+0x6c3/0x970 [ 186.596440][ T5770] bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 186.602354][ T5770] ? bch2_bkey_pack_key+0x1745/0x1860 [ 186.607862][ T5770] bch2_bset_insert+0x1621/0x19f0 [ 186.612994][ T5770] ? kmsan_get_metadata+0x13e/0x1c0 [ 186.618326][ T5770] bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 186.624268][ T5770] ? __msan_memcpy+0x108/0x1c0 [ 186.629200][ T5770] bch2_btree_insert_key_leaf+0x276/0x1050 [ 186.635148][ T5770] __bch2_trans_commit+0xaf5e/0xd190 [ 186.640578][ T5770] bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 186.646951][ T5770] ? bch2_trans_start_alloc_update_noupdate+0x179/0x12f0 [ 186.654110][ T5770] ? kmsan_get_metadata+0x13e/0x1c0 [ 186.659421][ T5770] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 186.665341][ T5770] ? kmsan_get_metadata+0x13e/0x1c0 [ 186.670648][ T5770] ? kmsan_save_stack_with_flags+0x10/0x60 [ 186.676600][ T5770] bch2_trans_mark_dev_sb+0x858/0x10e0 [ 186.682237][ T5770] bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 186.688360][ T5770] bch2_trans_mark_dev_sbs+0x32/0x40 [ 186.693759][ T5770] bch2_fs_initialize+0x19bd/0x35d0 [ 186.699065][ T5770] ? kmsan_internal_poison_memory+0x49/0x90 [ 186.705087][ T5770] ? kmsan_slab_free+0xd0/0x140 [ 186.710061][ T5770] ? kfree+0x240/0xdb0 [ 186.714232][ T5770] ? bch2_printbuf_exit+0x9b/0xd0 [ 186.719378][ T5770] ? print_mount_opts+0x4ca/0x4f0 [ 186.724548][ T5770] ? bch2_fs_start+0x59/0xbd0 [ 186.729415][ T5770] ? bch2_fs_get_tree+0x13ea/0x22d0 [ 186.734716][ T5770] ? vfs_get_tree+0xb1/0x5a0 [ 186.739441][ T5770] ? do_new_mount+0x71f/0x15e0 [ 186.744402][ T5770] ? path_mount+0x742/0x1f10 [ 186.749124][ T5770] ? __se_sys_mount+0x722/0x810 [ 186.754075][ T5770] ? __x64_sys_mount+0xe4/0x150 [ 186.759057][ T5770] ? x64_sys_call+0x39bf/0x3c30 [ 186.764088][ T5770] ? do_syscall_64+0xcd/0x1e0 [ 186.768858][ T5770] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 186.775066][ T5770] ? kmsan_get_metadata+0x13e/0x1c0 [ 186.780375][ T5770] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 186.786349][ T5770] ? kfree+0x1a7/0xdb0 [ 186.790527][ T5770] ? filter_irq_stacks+0x60/0x1a0 [ 186.795667][ T5770] ? kmsan_get_metadata+0x13e/0x1c0 [ 186.800955][ T5770] ? kmsan_get_metadata+0x13e/0x1c0 [ 186.806292][ T5770] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 186.812205][ T5770] ? kmsan_get_metadata+0x13e/0x1c0 [ 186.817500][ T5770] ? kmsan_get_metadata+0x13e/0x1c0 [ 186.822793][ T5770] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 186.828699][ T5770] ? kmsan_get_metadata+0x13e/0x1c0 [ 186.833996][ T5770] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 186.840454][ T5770] ? llist_reverse_order+0x102/0x130 [ 186.845834][ T5770] ? kmsan_internal_unpoison_memory+0x14/0x20 [ 186.852034][ T5770] ? __closure_wake_up+0x16a/0x180 [ 186.857257][ T5770] bch2_fs_start+0x77d/0xbd0 [ 186.861998][ T5770] bch2_fs_get_tree+0x13ea/0x22d0 [ 186.867183][ T5770] vfs_get_tree+0xb1/0x5a0 [ 186.871733][ T5770] ? mount_capable+0x97/0x120 [ 186.876554][ T5770] do_new_mount+0x71f/0x15e0 [ 186.881259][ T5770] ? kmsan_get_metadata+0x13e/0x1c0 [ 186.886631][ T5770] path_mount+0x742/0x1f10 [ 186.891194][ T5770] ? user_path_at+0x374/0x3e0 [ 186.896020][ T5770] __se_sys_mount+0x722/0x810 [ 186.900795][ T5770] ? ptrace_notify+0x263/0x320 [ 186.905688][ T5770] __x64_sys_mount+0xe4/0x150 [ 186.910465][ T5770] x64_sys_call+0x39bf/0x3c30 [ 186.915270][ T5770] do_syscall_64+0xcd/0x1e0 [ 186.919870][ T5770] ? clear_bhb_loop+0x25/0x80 [ 186.924670][ T5770] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 186.930725][ T5770] RIP: 0033:0x7fe59099edea [ 186.935231][ T5770] 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 b8 ff ff ff f7 d8 64 89 01 48 [ 186.954964][ T5770] RSP: 002b:00007ffc03a42038 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 186.963510][ T5770] RAX: ffffffffffffffda RBX: 00007ffc03a42050 RCX: 00007fe59099edea [ 186.971626][ T5770] RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 00007ffc03a42050 [ 186.979689][ T5770] RBP: 0000000000000010 R08: 00007ffc03a42090 R09: 00000000000059e7 [ 186.987749][ T5770] R10: 0000000000000010 R11: 0000000000000282 R12: 0000000000000004 [ 186.995813][ T5770] R13: 00007ffc03a42090 R14: 0000000000000003 R15: 0000000001000000 [ 187.003911][ T5770] [ 187.007343][ T5770] Kernel Offset: disabled [ 187.011734][ T5770] Rebooting in 86400 seconds..