./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor980367923 <...> Warning: Permanently added '10.128.0.194' (ED25519) to the list of known hosts. execve("./syz-executor980367923", ["./syz-executor980367923"], 0x7ffc844c76e0 /* 10 vars */) = 0 brk(NULL) = 0x5555843c2000 brk(0x5555843c2d00) = 0x5555843c2d00 arch_prctl(ARCH_SET_FS, 0x5555843c2380) = 0 set_tid_address(0x5555843c2650) = 5779 set_robust_list(0x5555843c2660, 24) = 0 rseq(0x5555843c2ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor980367923", 4096) = 27 getrandom("\x4e\xfa\xfe\xda\xcf\x42\xed\x2e", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555843c2d00 brk(0x5555843e3d00) = 0x5555843e3d00 brk(0x5555843e4000) = 0x5555843e4000 mprotect(0x7fceb79d3000, 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=0x5555843c2650) = 5780 ./strace-static-x86_64: Process 5780 attached [pid 5780] set_robust_list(0x5555843c2660, 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 [pid 5780] write(1, "executing program\n", 18executing program ) = 18 [pid 5780] memfd_create("syzkaller", 0) = 3 [pid 5780] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fceaf400000 [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(0x7fceaf400000, 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 [ 216.433928][ T5780] loop0: detected capacity change from 0 to 32768 [ 216.582010][ T5780] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=errors=continue,metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names [ 216.599164][ T5780] bcachefs (loop0): initializing new filesystem [ 216.612761][ T5780] bcachefs (loop0): going read-write [ 216.622069][ T5780] bcachefs (loop0): marking superblocks [ 216.652103][ T5780] ===================================================== [ 216.659482][ T5780] BUG: KMSAN: uninit-value in rw_aux_tree_set+0x4d2/0x580 [ 216.666980][ T5780] rw_aux_tree_set+0x4d2/0x580 [ 216.671946][ T5780] rw_aux_tree_insert_entry+0x6c3/0x970 [ 216.677800][ T5780] bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 216.683936][ T5780] bch2_bset_insert+0x1621/0x19f0 [ 216.689093][ T5780] bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 216.695196][ T5780] bch2_btree_insert_key_leaf+0x276/0x1050 [ 216.701347][ T5780] __bch2_trans_commit+0xaf5e/0xd190 [ 216.707039][ T5780] bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 216.713613][ T5780] bch2_trans_mark_dev_sb+0x858/0x10e0 [ 216.719229][ T5780] bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 216.725569][ T5780] bch2_trans_mark_dev_sbs+0x32/0x40 [ 216.731089][ T5780] bch2_fs_initialize+0x19bd/0x35d0 [ 216.736615][ T5780] bch2_fs_start+0x77d/0xbd0 [ 216.741460][ T5780] bch2_fs_get_tree+0x13ea/0x22d0 [ 216.746835][ T5780] vfs_get_tree+0xb1/0x5a0 [ 216.751521][ T5780] do_new_mount+0x71f/0x15e0 [ 216.756505][ T5780] path_mount+0x742/0x1f10 [ 216.761163][ T5780] __se_sys_mount+0x722/0x810 [ 216.766248][ T5780] __x64_sys_mount+0xe4/0x150 [ 216.771134][ T5780] x64_sys_call+0x39bf/0x3c30 [ 216.776124][ T5780] do_syscall_64+0xcd/0x1e0 [ 216.780842][ T5780] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 216.787140][ T5780] [ 216.789600][ T5780] Uninit was created at: [ 216.794299][ T5780] ___kmalloc_large_node+0x22c/0x370 [ 216.799838][ T5780] __kmalloc_large_node_noprof+0x3f/0x1e0 [ 216.805947][ T5780] __kmalloc_node_noprof+0xc96/0x1250 [ 216.811557][ T5780] __kvmalloc_node_noprof+0xc0/0x2d0 [ 216.817135][ T5780] __bch2_btree_node_mem_alloc+0x2be/0xa80 [ 216.823313][ T5780] bch2_fs_btree_cache_init+0x4e4/0xb50 [ 216.829029][ T5780] bch2_fs_open+0x4d3a/0x5b40 [ 216.834083][ T5780] bch2_fs_get_tree+0x983/0x22d0 [ 216.839235][ T5780] vfs_get_tree+0xb1/0x5a0 [ 216.843992][ T5780] do_new_mount+0x71f/0x15e0 [ 216.848764][ T5780] path_mount+0x742/0x1f10 [ 216.853549][ T5780] __se_sys_mount+0x722/0x810 [ 216.858447][ T5780] __x64_sys_mount+0xe4/0x150 [ 216.863490][ T5780] x64_sys_call+0x39bf/0x3c30 [ 216.868423][ T5780] do_syscall_64+0xcd/0x1e0 [ 216.873210][ T5780] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 216.879369][ T5780] [ 216.881842][ T5780] CPU: 1 UID: 0 PID: 5780 Comm: syz-executor980 Not tainted 6.13.0-rc4-syzkaller-00069-g8379578b11d5 #0 [ 216.893799][ T5780] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 216.904151][ T5780] ===================================================== [ 216.911207][ T5780] Disabling lock debugging due to kernel taint [ 216.917693][ T5780] Kernel panic - not syncing: kmsan.panic set ... [ 216.924278][ T5780] CPU: 1 UID: 0 PID: 5780 Comm: syz-executor980 Tainted: G B 6.13.0-rc4-syzkaller-00069-g8379578b11d5 #0 [ 216.937054][ T5780] Tainted: [B]=BAD_PAGE [ 216.941295][ T5780] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 216.951508][ T5780] Call Trace: [ 216.954918][ T5780] [ 216.958001][ T5780] dump_stack_lvl+0x216/0x2d0 [ 216.962853][ T5780] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 216.968826][ T5780] dump_stack+0x1e/0x24 [ 216.973144][ T5780] panic+0x4e2/0xcf0 [ 216.977206][ T5780] ? kmsan_get_metadata+0x131/0x1c0 [ 216.982560][ T5780] kmsan_report+0x2c7/0x2d0 [ 216.987196][ T5780] ? _raw_spin_unlock_irqrestore+0x3f/0x60 [ 216.993188][ T5780] ? __msan_warning+0x95/0x120 [ 216.998123][ T5780] ? rw_aux_tree_set+0x4d2/0x580 [ 217.003226][ T5780] ? rw_aux_tree_insert_entry+0x6c3/0x970 [ 217.009097][ T5780] ? bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 217.015252][ T5780] ? bch2_bset_insert+0x1621/0x19f0 [ 217.020584][ T5780] ? bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 217.026738][ T5780] ? bch2_btree_insert_key_leaf+0x276/0x1050 [ 217.032888][ T5780] ? __bch2_trans_commit+0xaf5e/0xd190 [ 217.038504][ T5780] ? bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 217.045090][ T5780] ? bch2_trans_mark_dev_sb+0x858/0x10e0 [ 217.050886][ T5780] ? bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 217.057220][ T5780] ? bch2_trans_mark_dev_sbs+0x32/0x40 [ 217.062842][ T5780] ? bch2_fs_initialize+0x19bd/0x35d0 [ 217.068386][ T5780] ? bch2_fs_start+0x77d/0xbd0 [ 217.073361][ T5780] ? bch2_fs_get_tree+0x13ea/0x22d0 [ 217.078775][ T5780] ? vfs_get_tree+0xb1/0x5a0 [ 217.083565][ T5780] ? do_new_mount+0x71f/0x15e0 [ 217.088515][ T5780] ? path_mount+0x742/0x1f10 [ 217.093283][ T5780] ? __se_sys_mount+0x722/0x810 [ 217.098272][ T5780] ? __x64_sys_mount+0xe4/0x150 [ 217.103262][ T5780] ? x64_sys_call+0x39bf/0x3c30 [ 217.108316][ T5780] ? do_syscall_64+0xcd/0x1e0 [ 217.113165][ T5780] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 217.119441][ T5780] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 217.125482][ T5780] ? filter_irq_stacks+0x164/0x1a0 [ 217.130797][ T5780] ? stack_depot_save_flags+0x2c/0x750 [ 217.136500][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 217.141868][ T5780] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 217.148472][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 217.153860][ T5780] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 217.159900][ T5780] __msan_warning+0x95/0x120 [ 217.164676][ T5780] rw_aux_tree_set+0x4d2/0x580 [ 217.169681][ T5780] ? bset_aux_tree_verify+0x44d/0x4a0 [ 217.175226][ T5780] rw_aux_tree_insert_entry+0x6c3/0x970 [ 217.180993][ T5780] bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 217.186999][ T5780] ? bch2_bkey_pack_key+0x1745/0x1860 [ 217.192568][ T5780] bch2_bset_insert+0x1621/0x19f0 [ 217.197740][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 217.203115][ T5780] bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 217.209097][ T5780] ? __msan_memcpy+0x108/0x1c0 [ 217.214077][ T5780] bch2_btree_insert_key_leaf+0x276/0x1050 [ 217.220097][ T5780] __bch2_trans_commit+0xaf5e/0xd190 [ 217.225610][ T5780] bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 217.232059][ T5780] ? bch2_trans_start_alloc_update_noupdate+0x179/0x12f0 [ 217.239314][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 217.244688][ T5780] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 217.250662][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 217.256004][ T5780] ? kmsan_save_stack_with_flags+0x30/0x60 [ 217.262134][ T5780] bch2_trans_mark_dev_sb+0x858/0x10e0 [ 217.267902][ T5780] bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 217.274126][ T5780] bch2_trans_mark_dev_sbs+0x32/0x40 [ 217.279595][ T5780] bch2_fs_initialize+0x19bd/0x35d0 [ 217.284958][ T5780] ? kmsan_internal_poison_memory+0x49/0x90 [ 217.291041][ T5780] ? kmsan_slab_free+0xd0/0x140 [ 217.296072][ T5780] ? kfree+0x240/0xdb0 [ 217.300290][ T5780] ? bch2_printbuf_exit+0x9b/0xd0 [ 217.305509][ T5780] ? print_mount_opts+0x4ca/0x4f0 [ 217.310789][ T5780] ? bch2_fs_start+0x59/0xbd0 [ 217.315641][ T5780] ? bch2_fs_get_tree+0x13ea/0x22d0 [ 217.320992][ T5780] ? vfs_get_tree+0xb1/0x5a0 [ 217.325763][ T5780] ? do_new_mount+0x71f/0x15e0 [ 217.330662][ T5780] ? path_mount+0x742/0x1f10 [ 217.335433][ T5780] ? __se_sys_mount+0x722/0x810 [ 217.340425][ T5780] ? __x64_sys_mount+0xe4/0x150 [ 217.345555][ T5780] ? x64_sys_call+0x39bf/0x3c30 [ 217.350607][ T5780] ? do_syscall_64+0xcd/0x1e0 [ 217.355446][ T5780] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 217.361712][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 217.367081][ T5780] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 217.373068][ T5780] ? kfree+0x1a7/0xdb0 [ 217.377344][ T5780] ? filter_irq_stacks+0x60/0x1a0 [ 217.382628][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 217.388011][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 217.393657][ T5780] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 217.399657][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 217.405072][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 217.410441][ T5780] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 217.416420][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 217.421795][ T5780] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 217.428329][ T5780] ? llist_reverse_order+0x102/0x130 [ 217.433763][ T5780] ? kmsan_internal_unpoison_memory+0x14/0x20 [ 217.440024][ T5780] ? __closure_wake_up+0x16a/0x180 [ 217.445306][ T5780] bch2_fs_start+0x77d/0xbd0 [ 217.450094][ T5780] bch2_fs_get_tree+0x13ea/0x22d0 [ 217.455332][ T5780] vfs_get_tree+0xb1/0x5a0 [ 217.459960][ T5780] ? mount_capable+0x97/0x120 [ 217.464884][ T5780] do_new_mount+0x71f/0x15e0 [ 217.469606][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 217.474970][ T5780] path_mount+0x742/0x1f10 [ 217.479580][ T5780] ? user_path_at+0x374/0x3e0 [ 217.484440][ T5780] __se_sys_mount+0x722/0x810 [ 217.489272][ T5780] ? ptrace_notify+0x263/0x320 [ 217.494267][ T5780] __x64_sys_mount+0xe4/0x150 [ 217.499198][ T5780] x64_sys_call+0x39bf/0x3c30 [ 217.504060][ T5780] do_syscall_64+0xcd/0x1e0 [ 217.508714][ T5780] ? clear_bhb_loop+0x25/0x80 [ 217.513596][ T5780] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 217.519701][ T5780] RIP: 0033:0x7fceb795bdea [ 217.524341][ 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 [ 217.544182][ T5780] RSP: 002b:00007ffd43296ec8 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 217.552805][ T5780] RAX: ffffffffffffffda RBX: 00007ffd43296ee0 RCX: 00007fceb795bdea [ 217.560971][ T5780] RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 00007ffd43296ee0 [ 217.569106][ T5780] RBP: 0000000000000010 R08: 00007ffd43296f20 R09: 00000000000059e4 [ 217.577251][ T5780] R10: 0000000000000010 R11: 0000000000000282 R12: 0000000000000004 [ 217.585344][ T5780] R13: 00007ffd43296f20 R14: 0000000000000003 R15: 0000000001000000 [ 217.593462][ T5780] [ 217.597001][ T5780] Kernel Offset: disabled [ 217.601459][ T5780] Rebooting in 86400 seconds..