./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor686600207 <...> Warning: Permanently added '10.128.1.7' (ED25519) to the list of known hosts. execve("./syz-executor686600207", ["./syz-executor686600207"], 0x7ffe7d8e4e80 /* 10 vars */) = 0 brk(NULL) = 0x5555717c2000 brk(0x5555717c2d00) = 0x5555717c2d00 arch_prctl(ARCH_SET_FS, 0x5555717c2380) = 0 set_tid_address(0x5555717c2650) = 5779 set_robust_list(0x5555717c2660, 24) = 0 rseq(0x5555717c2ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor686600207", 4096) = 27 getrandom("\xdd\xff\xff\xcb\xa3\x3a\x4f\x76", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555717c2d00 brk(0x5555717e3d00) = 0x5555717e3d00 brk(0x5555717e4000) = 0x5555717e4000 mprotect(0x7fe3cc356000, 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=0x5555717c2650) = 5780 ./strace-static-x86_64: Process 5780 attached [pid 5780] set_robust_list(0x5555717c2660, 24) = 0 [pid 5780] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5780] setpgid(0, 0) = 0 [pid 5780] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5780] write(3, "1000", 4) = 4 [pid 5780] close(3) = 0 executing program [pid 5780] write(1, "executing program\n", 18) = 18 [pid 5780] memfd_create("syzkaller", 0) = 3 [pid 5780] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fe3c3e00000 [pid 5780] 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 5780] munmap(0x7fe3c3e00000, 138412032) = 0 [pid 5780] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5780] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5780] close(3) = 0 [pid 5780] close(4) = 0 [pid 5780] mkdir("./file1", 0777) = 0 [ 183.659275][ T5780] loop0: detected capacity change from 0 to 32768 [ 183.793515][ T5780] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=errors=continue,metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names [ 183.811002][ T5780] bcachefs (loop0): initializing new filesystem [ 183.824242][ T5780] bcachefs (loop0): going read-write [ 183.834212][ T5780] bcachefs (loop0): marking superblocks [ 183.858912][ T5780] ===================================================== [ 183.866323][ T5780] BUG: KMSAN: uninit-value in rw_aux_tree_set+0x4d2/0x580 [ 183.874267][ T5780] rw_aux_tree_set+0x4d2/0x580 [ 183.879198][ T5780] rw_aux_tree_insert_entry+0x6c3/0x970 [ 183.885039][ T5780] bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 183.891037][ T5780] bch2_bset_insert+0x1621/0x19f0 [ 183.896347][ T5780] bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 183.902405][ T5780] bch2_btree_insert_key_leaf+0x276/0x1050 [ 183.908412][ T5780] __bch2_trans_commit+0xaf5e/0xd190 [ 183.913976][ T5780] bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 183.920410][ T5780] bch2_trans_mark_dev_sb+0x858/0x10e0 [ 183.926145][ T5780] bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 183.932516][ T5780] bch2_trans_mark_dev_sbs+0x32/0x40 [ 183.937988][ T5780] bch2_fs_initialize+0x19bd/0x35d0 [ 183.943487][ T5780] bch2_fs_start+0x77d/0xbd0 [ 183.948271][ T5780] bch2_fs_get_tree+0x13ea/0x22d0 [ 183.953557][ T5780] vfs_get_tree+0xb1/0x5a0 [ 183.958163][ T5780] do_new_mount+0x71f/0x15e0 [ 183.963006][ T5780] path_mount+0x742/0x1f10 [ 183.967610][ T5780] __se_sys_mount+0x722/0x810 [ 183.972549][ T5780] __x64_sys_mount+0xe4/0x150 [ 183.977377][ T5780] x64_sys_call+0x39bf/0x3c30 [ 183.982299][ T5780] do_syscall_64+0xcd/0x1e0 [ 183.986961][ T5780] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 183.993274][ T5780] [ 183.995683][ T5780] Uninit was created at: [ 184.000128][ T5780] ___kmalloc_large_node+0x22c/0x370 [ 184.006434][ T5780] __kmalloc_large_node_noprof+0x3f/0x1e0 [ 184.012466][ T5780] __kmalloc_node_noprof+0xc96/0x1250 [ 184.017972][ T5780] __kvmalloc_node_noprof+0xc0/0x2d0 [ 184.023495][ T5780] __bch2_btree_node_mem_alloc+0x2be/0xa80 [ 184.029488][ T5780] bch2_fs_btree_cache_init+0x4e4/0xb50 [ 184.035391][ T5780] bch2_fs_open+0x4d3a/0x5b40 [ 184.040222][ T5780] bch2_fs_get_tree+0x983/0x22d0 [ 184.045398][ T5780] vfs_get_tree+0xb1/0x5a0 [ 184.050355][ T5780] do_new_mount+0x71f/0x15e0 [ 184.055316][ T5780] path_mount+0x742/0x1f10 [ 184.059949][ T5780] __se_sys_mount+0x722/0x810 [ 184.064983][ T5780] __x64_sys_mount+0xe4/0x150 [ 184.069802][ T5780] x64_sys_call+0x39bf/0x3c30 [ 184.074813][ T5780] do_syscall_64+0xcd/0x1e0 [ 184.079484][ T5780] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 184.085646][ T5780] [ 184.088092][ T5780] CPU: 1 UID: 0 PID: 5780 Comm: syz-executor686 Not tainted 6.13.0-rc2-syzkaller-00333-ga0e3919a2df2 #0 [ 184.099476][ T5780] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 [ 184.109744][ T5780] ===================================================== [ 184.116974][ T5780] Disabling lock debugging due to kernel taint [ 184.123344][ T5780] Kernel panic - not syncing: kmsan.panic set ... [ 184.129949][ T5780] CPU: 1 UID: 0 PID: 5780 Comm: syz-executor686 Tainted: G B 6.13.0-rc2-syzkaller-00333-ga0e3919a2df2 #0 [ 184.142731][ T5780] Tainted: [B]=BAD_PAGE [ 184.146932][ T5780] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 [ 184.157071][ T5780] Call Trace: [ 184.160409][ T5780] [ 184.163414][ T5780] dump_stack_lvl+0x216/0x2d0 [ 184.168215][ T5780] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 184.174129][ T5780] dump_stack+0x1e/0x24 [ 184.178483][ T5780] panic+0x4e2/0xcf0 [ 184.182529][ T5780] ? kmsan_get_metadata+0x101/0x1c0 [ 184.187881][ T5780] kmsan_report+0x2c7/0x2d0 [ 184.192475][ T5780] ? _raw_spin_unlock_irqrestore+0x3f/0x60 [ 184.198439][ T5780] ? __msan_warning+0x95/0x120 [ 184.203481][ T5780] ? rw_aux_tree_set+0x4d2/0x580 [ 184.208514][ T5780] ? rw_aux_tree_insert_entry+0x6c3/0x970 [ 184.214334][ T5780] ? bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 184.220413][ T5780] ? bch2_bset_insert+0x1621/0x19f0 [ 184.225737][ T5780] ? bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 184.231841][ T5780] ? bch2_btree_insert_key_leaf+0x276/0x1050 [ 184.237997][ T5780] ? __bch2_trans_commit+0xaf5e/0xd190 [ 184.243590][ T5780] ? bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 184.250194][ T5780] ? bch2_trans_mark_dev_sb+0x858/0x10e0 [ 184.255960][ T5780] ? bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 184.262230][ T5780] ? bch2_trans_mark_dev_sbs+0x32/0x40 [ 184.267825][ T5780] ? bch2_fs_initialize+0x19bd/0x35d0 [ 184.273301][ T5780] ? bch2_fs_start+0x77d/0xbd0 [ 184.278208][ T5780] ? bch2_fs_get_tree+0x13ea/0x22d0 [ 184.283567][ T5780] ? vfs_get_tree+0xb1/0x5a0 [ 184.288288][ T5780] ? do_new_mount+0x71f/0x15e0 [ 184.293135][ T5780] ? path_mount+0x742/0x1f10 [ 184.297845][ T5780] ? __se_sys_mount+0x722/0x810 [ 184.302784][ T5780] ? __x64_sys_mount+0xe4/0x150 [ 184.307754][ T5780] ? x64_sys_call+0x39bf/0x3c30 [ 184.312758][ T5780] ? do_syscall_64+0xcd/0x1e0 [ 184.317528][ T5780] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 184.323755][ T5780] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 184.329736][ T5780] ? filter_irq_stacks+0x164/0x1a0 [ 184.334997][ T5780] ? stack_depot_save_flags+0x2c/0x750 [ 184.340640][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.345962][ T5780] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 184.352498][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.357836][ T5780] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 184.364277][ T5780] __msan_warning+0x95/0x120 [ 184.369230][ T5780] rw_aux_tree_set+0x4d2/0x580 [ 184.374174][ T5780] ? bset_aux_tree_verify+0x44d/0x4a0 [ 184.380046][ T5780] rw_aux_tree_insert_entry+0x6c3/0x970 [ 184.385791][ T5780] bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 184.391748][ T5780] ? bch2_bkey_pack_key+0x1745/0x1860 [ 184.397329][ T5780] bch2_bset_insert+0x1621/0x19f0 [ 184.402462][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.407818][ T5780] bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 184.413763][ T5780] ? __msan_memcpy+0x108/0x1c0 [ 184.418697][ T5780] bch2_btree_insert_key_leaf+0x276/0x1050 [ 184.424649][ T5780] __bch2_trans_commit+0xaf5e/0xd190 [ 184.430074][ T5780] bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 184.436444][ T5780] ? bch2_trans_start_alloc_update_noupdate+0x179/0x12f0 [ 184.443622][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.448950][ T5780] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 184.454924][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.460242][ T5780] ? __pfx_kmsan_save_stack_with_flags+0x10/0x10 [ 184.466788][ T5780] bch2_trans_mark_dev_sb+0x858/0x10e0 [ 184.472427][ T5780] bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 184.478539][ T5780] bch2_trans_mark_dev_sbs+0x32/0x40 [ 184.483937][ T5780] bch2_fs_initialize+0x19bd/0x35d0 [ 184.489261][ T5780] ? kmsan_internal_poison_memory+0x49/0x90 [ 184.495280][ T5780] ? kmsan_slab_free+0xd0/0x140 [ 184.500256][ T5780] ? kfree+0x240/0xdb0 [ 184.504423][ T5780] ? bch2_printbuf_exit+0x9b/0xd0 [ 184.509566][ T5780] ? print_mount_opts+0x4ca/0x4f0 [ 184.514715][ T5780] ? bch2_fs_start+0x59/0xbd0 [ 184.519508][ T5780] ? bch2_fs_get_tree+0x13ea/0x22d0 [ 184.524804][ T5780] ? vfs_get_tree+0xb1/0x5a0 [ 184.529517][ T5780] ? do_new_mount+0x71f/0x15e0 [ 184.534369][ T5780] ? path_mount+0x742/0x1f10 [ 184.539102][ T5780] ? __se_sys_mount+0x722/0x810 [ 184.544103][ T5780] ? __x64_sys_mount+0xe4/0x150 [ 184.549040][ T5780] ? x64_sys_call+0x39bf/0x3c30 [ 184.554010][ T5780] ? do_syscall_64+0xcd/0x1e0 [ 184.558774][ T5780] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 184.564975][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.570268][ T5780] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 184.576176][ T5780] ? kfree+0x1a7/0xdb0 [ 184.580440][ T5780] ? filter_irq_stacks+0x60/0x1a0 [ 184.585578][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.590876][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.596197][ T5780] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 184.602186][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.607522][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.612895][ T5780] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 184.618838][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.624200][ T5780] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 184.630691][ T5780] ? llist_reverse_order+0x102/0x130 [ 184.636103][ T5780] ? kmsan_internal_unpoison_memory+0x14/0x20 [ 184.642306][ T5780] ? __closure_wake_up+0x16a/0x180 [ 184.647531][ T5780] bch2_fs_start+0x77d/0xbd0 [ 184.652289][ T5780] bch2_fs_get_tree+0x13ea/0x22d0 [ 184.657524][ T5780] vfs_get_tree+0xb1/0x5a0 [ 184.662065][ T5780] ? mount_capable+0x97/0x120 [ 184.666853][ T5780] do_new_mount+0x71f/0x15e0 [ 184.671537][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.676853][ T5780] path_mount+0x742/0x1f10 [ 184.681419][ T5780] ? user_path_at+0x374/0x3e0 [ 184.686296][ T5780] __se_sys_mount+0x722/0x810 [ 184.691126][ T5780] ? ptrace_notify+0x263/0x320 [ 184.696043][ T5780] __x64_sys_mount+0xe4/0x150 [ 184.700820][ T5780] x64_sys_call+0x39bf/0x3c30 [ 184.705619][ T5780] do_syscall_64+0xcd/0x1e0 [ 184.710243][ T5780] ? clear_bhb_loop+0x25/0x80 [ 184.715041][ T5780] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 184.721092][ T5780] RIP: 0033:0x7fe3cc2dedea [ 184.725632][ T5780] 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 [ 184.745365][ T5780] RSP: 002b:00007ffeaf730bc8 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 184.753912][ T5780] RAX: ffffffffffffffda RBX: 00007ffeaf730be0 RCX: 00007fe3cc2dedea [ 184.761979][ T5780] RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 00007ffeaf730be0 [ 184.770042][ T5780] RBP: 0000000000000010 R08: 00007ffeaf730c20 R09: 00000000000059d0 [ 184.778136][ T5780] R10: 0000000000000010 R11: 0000000000000282 R12: 0000000000000004 [ 184.786257][ T5780] R13: 00007ffeaf730c20 R14: 0000000000000003 R15: 0000000001000000 [ 184.794336][ T5780] [ 184.797740][ T5780] Kernel Offset: disabled [ 184.802137][ T5780] Rebooting in 86400 seconds..