./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1669818757 <...> Warning: Permanently added '10.128.0.224' (ED25519) to the list of known hosts. execve("./syz-executor1669818757", ["./syz-executor1669818757"], 0x7ffd99c66c50 /* 10 vars */) = 0 brk(NULL) = 0x555576774000 brk(0x555576774d00) = 0x555576774d00 arch_prctl(ARCH_SET_FS, 0x555576774380) = 0 set_tid_address(0x555576774650) = 5783 set_robust_list(0x555576774660, 24) = 0 rseq(0x555576774ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1669818757", 4096) = 28 getrandom("\x1b\x5d\xdc\x16\x64\x0b\x74\xd3", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555576774d00 brk(0x555576795d00) = 0x555576795d00 brk(0x555576796000) = 0x555576796000 mprotect(0x7fa988714000, 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./strace-static-x86_64: Process 5784 attached , child_tidptr=0x555576774650) = 5784 [pid 5784] set_robust_list(0x555576774660, 24) = 0 [pid 5784] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5784] setpgid(0, 0) = 0 [pid 5784] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5784] write(3, "1000", 4executing program ) = 4 [pid 5784] close(3) = 0 [pid 5784] write(1, "executing program\n", 18) = 18 [pid 5784] memfd_create("syzkaller", 0) = 3 [pid 5784] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa980200000 [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(0x7fa980200000, 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 [ 184.561047][ T5784] loop0: detected capacity change from 0 to 32768 [ 184.696545][ T5784] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=errors=continue,metadata_checksum=none,data_checksum=none,compression=lz4,journal_reclaim_delay=1000,nojournal_transaction_names [ 184.716094][ T5784] bcachefs (loop0): initializing new filesystem [ 184.727310][ T5784] bcachefs (loop0): going read-write [ 184.737795][ T5784] bcachefs (loop0): marking superblocks [ 184.762016][ T5784] ===================================================== [ 184.769305][ T5784] BUG: KMSAN: uninit-value in rw_aux_tree_set+0x4d2/0x580 [ 184.776515][ T5784] rw_aux_tree_set+0x4d2/0x580 [ 184.781592][ T5784] rw_aux_tree_insert_entry+0x6c3/0x970 [ 184.787321][ T5784] bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 184.793388][ T5784] bch2_bset_insert+0x1621/0x19f0 [ 184.798705][ T5784] bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 184.804660][ T5784] bch2_btree_insert_key_leaf+0x276/0x1050 [ 184.810719][ T5784] __bch2_trans_commit+0xaf5e/0xd190 [ 184.816213][ T5784] bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 184.822748][ T5784] bch2_trans_mark_dev_sb+0x858/0x10e0 [ 184.828471][ T5784] bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 184.834571][ T5784] bch2_trans_mark_dev_sbs+0x32/0x40 [ 184.840184][ T5784] bch2_fs_initialize+0x19bd/0x35d0 [ 184.845552][ T5784] bch2_fs_start+0x77d/0xbd0 [ 184.850406][ T5784] bch2_fs_get_tree+0x13ea/0x22d0 [ 184.855602][ T5784] vfs_get_tree+0xb1/0x5a0 [ 184.860342][ T5784] do_new_mount+0x71f/0x15e0 [ 184.865072][ T5784] path_mount+0x742/0x1f10 [ 184.869769][ T5784] __se_sys_mount+0x722/0x810 [ 184.874600][ T5784] __x64_sys_mount+0xe4/0x150 [ 184.879550][ T5784] x64_sys_call+0x39bf/0x3c30 [ 184.884424][ T5784] do_syscall_64+0xcd/0x1e0 [ 184.889174][ T5784] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 184.895298][ T5784] [ 184.897712][ T5784] Uninit was created at: [ 184.902379][ T5784] ___kmalloc_large_node+0x22c/0x370 [ 184.907863][ T5784] __kmalloc_large_node_noprof+0x3f/0x1e0 [ 184.913894][ T5784] __kmalloc_node_noprof+0xc96/0x1250 [ 184.919553][ T5784] __kvmalloc_node_noprof+0xc0/0x2d0 [ 184.925000][ T5784] __bch2_btree_node_mem_alloc+0x2be/0xa80 [ 184.931073][ T5784] bch2_fs_btree_cache_init+0x4e4/0xb50 [ 184.936795][ T5784] bch2_fs_open+0x4d3a/0x5b40 [ 184.941753][ T5784] bch2_fs_get_tree+0x983/0x22d0 [ 184.946864][ T5784] vfs_get_tree+0xb1/0x5a0 [ 184.951706][ T5784] do_new_mount+0x71f/0x15e0 [ 184.956443][ T5784] path_mount+0x742/0x1f10 [ 184.961237][ T5784] __se_sys_mount+0x722/0x810 [ 184.966177][ T5784] __x64_sys_mount+0xe4/0x150 [ 184.971089][ T5784] x64_sys_call+0x39bf/0x3c30 [ 184.976085][ T5784] do_syscall_64+0xcd/0x1e0 [ 184.980960][ T5784] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 184.987095][ T5784] [ 184.989692][ T5784] CPU: 0 UID: 0 PID: 5784 Comm: syz-executor166 Not tainted 6.13.0-rc5-syzkaller-00004-gccb98ccef0e5 #0 [ 185.001162][ T5784] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 185.011485][ T5784] ===================================================== [ 185.018650][ T5784] Disabling lock debugging due to kernel taint [ 185.024883][ T5784] Kernel panic - not syncing: kmsan.panic set ... [ 185.031383][ T5784] CPU: 0 UID: 0 PID: 5784 Comm: syz-executor166 Tainted: G B 6.13.0-rc5-syzkaller-00004-gccb98ccef0e5 #0 [ 185.044133][ T5784] Tainted: [B]=BAD_PAGE [ 185.048468][ T5784] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 185.058615][ T5784] Call Trace: [ 185.061961][ T5784] [ 185.064954][ T5784] dump_stack_lvl+0x216/0x2d0 [ 185.069774][ T5784] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 185.075787][ T5784] dump_stack+0x1e/0x24 [ 185.080061][ T5784] panic+0x4e2/0xcf0 [ 185.084068][ T5784] ? kmsan_get_metadata+0x111/0x1c0 [ 185.089373][ T5784] kmsan_report+0x2c7/0x2d0 [ 185.093970][ T5784] ? _raw_spin_unlock_irqrestore+0x3f/0x60 [ 185.099908][ T5784] ? __msan_warning+0x95/0x120 [ 185.104798][ T5784] ? rw_aux_tree_set+0x4d2/0x580 [ 185.109836][ T5784] ? rw_aux_tree_insert_entry+0x6c3/0x970 [ 185.115663][ T5784] ? bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 185.121791][ T5784] ? bch2_bset_insert+0x1621/0x19f0 [ 185.127087][ T5784] ? bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 185.133191][ T5784] ? bch2_btree_insert_key_leaf+0x276/0x1050 [ 185.139293][ T5784] ? __bch2_trans_commit+0xaf5e/0xd190 [ 185.144864][ T5784] ? bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 185.151408][ T5784] ? bch2_trans_mark_dev_sb+0x858/0x10e0 [ 185.157152][ T5784] ? bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 185.163424][ T5784] ? bch2_trans_mark_dev_sbs+0x32/0x40 [ 185.168997][ T5784] ? bch2_fs_initialize+0x19bd/0x35d0 [ 185.174677][ T5784] ? bch2_fs_start+0x77d/0xbd0 [ 185.179577][ T5784] ? bch2_fs_get_tree+0x13ea/0x22d0 [ 185.184886][ T5784] ? vfs_get_tree+0xb1/0x5a0 [ 185.189603][ T5784] ? do_new_mount+0x71f/0x15e0 [ 185.194471][ T5784] ? path_mount+0x742/0x1f10 [ 185.199184][ T5784] ? __se_sys_mount+0x722/0x810 [ 185.204149][ T5784] ? __x64_sys_mount+0xe4/0x150 [ 185.209149][ T5784] ? x64_sys_call+0x39bf/0x3c30 [ 185.214123][ T5784] ? do_syscall_64+0xcd/0x1e0 [ 185.218896][ T5784] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 185.225102][ T5784] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 185.231026][ T5784] ? filter_irq_stacks+0x164/0x1a0 [ 185.236259][ T5784] ? stack_depot_save_flags+0x2c/0x750 [ 185.241846][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 185.247197][ T5784] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 185.253662][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 185.258995][ T5784] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 185.264910][ T5784] __msan_warning+0x95/0x120 [ 185.269629][ T5784] rw_aux_tree_set+0x4d2/0x580 [ 185.274513][ T5784] ? bset_aux_tree_verify+0x44d/0x4a0 [ 185.279998][ T5784] rw_aux_tree_insert_entry+0x6c3/0x970 [ 185.285677][ T5784] bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 185.291592][ T5784] ? bch2_bkey_pack_key+0x1745/0x1860 [ 185.297097][ T5784] bch2_bset_insert+0x1621/0x19f0 [ 185.302219][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 185.307539][ T5784] bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 185.313472][ T5784] ? __msan_memcpy+0x108/0x1c0 [ 185.318426][ T5784] bch2_btree_insert_key_leaf+0x276/0x1050 [ 185.324445][ T5784] __bch2_trans_commit+0xaf5e/0xd190 [ 185.329930][ T5784] bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 185.336375][ T5784] ? bch2_trans_start_alloc_update_noupdate+0x179/0x12f0 [ 185.344847][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 185.350159][ T5784] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 185.356090][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 185.361390][ T5784] ? kmsan_save_stack_with_flags+0x10/0x60 [ 185.367340][ T5784] bch2_trans_mark_dev_sb+0x858/0x10e0 [ 185.372981][ T5784] bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 185.379095][ T5784] bch2_trans_mark_dev_sbs+0x32/0x40 [ 185.384494][ T5784] bch2_fs_initialize+0x19bd/0x35d0 [ 185.389807][ T5784] ? kmsan_internal_poison_memory+0x49/0x90 [ 185.395831][ T5784] ? kmsan_slab_free+0xd0/0x140 [ 185.400807][ T5784] ? kfree+0x240/0xdb0 [ 185.404994][ T5784] ? bch2_printbuf_exit+0x9b/0xd0 [ 185.410198][ T5784] ? print_mount_opts+0x4ca/0x4f0 [ 185.415352][ T5784] ? bch2_fs_start+0x59/0xbd0 [ 185.420173][ T5784] ? bch2_fs_get_tree+0x13ea/0x22d0 [ 185.425542][ T5784] ? vfs_get_tree+0xb1/0x5a0 [ 185.430262][ T5784] ? do_new_mount+0x71f/0x15e0 [ 185.435121][ T5784] ? path_mount+0x742/0x1f10 [ 185.439840][ T5784] ? __se_sys_mount+0x722/0x810 [ 185.444786][ T5784] ? __x64_sys_mount+0xe4/0x150 [ 185.449737][ T5784] ? x64_sys_call+0x39bf/0x3c30 [ 185.454734][ T5784] ? do_syscall_64+0xcd/0x1e0 [ 185.459559][ T5784] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 185.465778][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 185.471259][ T5784] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 185.477207][ T5784] ? kfree+0x1a7/0xdb0 [ 185.481461][ T5784] ? filter_irq_stacks+0x60/0x1a0 [ 185.486604][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 185.491901][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 185.497200][ T5784] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 185.503112][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 185.508414][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 185.513710][ T5784] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 185.519620][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 185.524920][ T5784] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 185.531399][ T5784] ? llist_reverse_order+0x102/0x130 [ 185.536804][ T5784] ? kmsan_internal_unpoison_memory+0x14/0x20 [ 185.543021][ T5784] ? __closure_wake_up+0x16a/0x180 [ 185.548257][ T5784] bch2_fs_start+0x77d/0xbd0 [ 185.552981][ T5784] bch2_fs_get_tree+0x13ea/0x22d0 [ 185.558175][ T5784] vfs_get_tree+0xb1/0x5a0 [ 185.562715][ T5784] ? mount_capable+0x97/0x120 [ 185.567521][ T5784] do_new_mount+0x71f/0x15e0 [ 185.572207][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 185.577515][ T5784] path_mount+0x742/0x1f10 [ 185.582064][ T5784] ? user_path_at+0x374/0x3e0 [ 185.586907][ T5784] __se_sys_mount+0x722/0x810 [ 185.591715][ T5784] ? ptrace_notify+0x263/0x320 [ 185.596699][ T5784] __x64_sys_mount+0xe4/0x150 [ 185.601490][ T5784] x64_sys_call+0x39bf/0x3c30 [ 185.606311][ T5784] do_syscall_64+0xcd/0x1e0 [ 185.610942][ T5784] ? clear_bhb_loop+0x25/0x80 [ 185.615747][ T5784] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 185.621785][ T5784] RIP: 0033:0x7fa98869cdea [ 185.626316][ 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 b8 ff ff ff f7 d8 64 89 01 48 [ 185.646069][ T5784] RSP: 002b:00007ffe51060bb8 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 185.654615][ T5784] RAX: ffffffffffffffda RBX: 00007ffe51060bd0 RCX: 00007fa98869cdea [ 185.662693][ T5784] RDX: 0000000020000140 RSI: 0000000020000180 RDI: 00007ffe51060bd0 [ 185.670784][ T5784] RBP: 0000000000000010 R08: 00007ffe51060c10 R09: 0000000000005a16 [ 185.678904][ T5784] R10: 0000000000000010 R11: 0000000000000282 R12: 0000000000000004 [ 185.686959][ T5784] R13: 00007ffe51060c10 R14: 0000000000000003 R15: 0000000001000000 [ 185.695036][ T5784] [ 185.698429][ T5784] Kernel Offset: disabled [ 185.702819][ T5784] Rebooting in 86400 seconds..