./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor916415846 <...> Warning: Permanently added '10.128.0.111' (ED25519) to the list of known hosts. execve("./syz-executor916415846", ["./syz-executor916415846"], 0x7ffcb37bec90 /* 10 vars */) = 0 brk(NULL) = 0x55557714e000 brk(0x55557714ed00) = 0x55557714ed00 arch_prctl(ARCH_SET_FS, 0x55557714e380) = 0 set_tid_address(0x55557714e650) = 5788 set_robust_list(0x55557714e660, 24) = 0 rseq(0x55557714eca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor916415846", 4096) = 27 getrandom("\x82\x13\xb4\x29\xee\x70\x9e\xcb", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557714ed00 brk(0x55557716fd00) = 0x55557716fd00 brk(0x555577170000) = 0x555577170000 mprotect(0x7fe7d11c0000, 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=0x55557714e650) = 5789 ./strace-static-x86_64: Process 5789 attached [pid 5789] set_robust_list(0x55557714e660, 24) = 0 [pid 5789] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5789] setpgid(0, 0) = 0 [pid 5789] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5789] write(3, "1000", 4) = 4 [pid 5789] close(3) = 0 [pid 5789] write(1, "executing program\n", 18executing program ) = 18 [pid 5789] memfd_create("syzkaller", 0) = 3 [pid 5789] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fe7c8c00000 [pid 5789] 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 5789] munmap(0x7fe7c8c00000, 138412032) = 0 [pid 5789] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5789] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5789] close(3) = 0 [pid 5789] close(4) = 0 [pid 5789] mkdir("./file1", 0777) = 0 [ 197.219891][ T5789] loop0: detected capacity change from 0 to 32768 [ 197.355027][ T5789] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=ro,metadata_checksum=none,data_checksum=none,compression=lz4,journal_flush_disabled,fsck,norecovery,nojournal_transaction_names,read_only,reconstruct_alloc,no_data_io [ 197.378468][ T5789] bcachefs (loop0): recovering from clean shutdown, journal seq 10 [ 197.387454][ T5789] bcachefs (loop0): Version upgrade required: [ 197.387454][ T5789] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete [ 197.387454][ T5789] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.13: inode_has_child_snapshots [ 197.387454][ T5789] running recovery passes: check_allocations,check_alloc_info,check_lrus,check_btree_backpointers,check_backpointers_to_extents,check_extents_to_backpointers,check_alloc_to_lru_refs,bucket_gens_init,check_snapshot_trees,check_snapshots,check_subvols,check_subvol_children,delete_dead_snapshots,check_inodes,check_extents,check_indirect_extents,check_dirents,check_xattrs,check_root,check_unreachable_inodes,check_subvolume_structure,check_directory_structure,check_nlinks,set_fs_needs_rebalance [ 197.462793][ T5789] bcachefs (loop0): dropping and reconstructing all alloc info [ 197.511105][ T5789] bcachefs (loop0): check_topology... done [ 197.517316][ T5789] bcachefs (loop0): accounting_read... done [ 197.524620][ T5789] bcachefs (loop0): alloc_read... done [ 197.530665][ T5789] bcachefs (loop0): stripes_read... done [ 197.537170][ T5789] bcachefs (loop0): snapshots_read... done [ 197.543758][ T5789] bcachefs (loop0): check_allocations... done [ 197.629869][ T5789] bcachefs (loop0): going read-write [ 197.643383][ T5789] bcachefs (loop0): scanning for old btree nodes: min_version 0.24: unwritten_extents [ 197.662301][ T5789] ===================================================== [ 197.670172][ T5789] BUG: KMSAN: uninit-value in bch2_bkey_ptrs_validate+0x589/0x2df0 [ 197.678398][ T5789] bch2_bkey_ptrs_validate+0x589/0x2df0 [ 197.684343][ T5789] bch2_bkey_val_validate+0x2b5/0x440 [ 197.690198][ T5789] validate_bset_keys+0x1531/0x2080 [ 197.695616][ T5789] validate_bset_for_write+0x142/0x290 [ 197.701482][ T5789] __bch2_btree_node_write+0x53df/0x6830 [ 197.707423][ T5789] bch2_btree_node_write+0xa5/0x2e0 [ 197.713368][ T5789] bch2_btree_node_rewrite+0x1442/0x1930 [ 197.719721][ T5789] bch2_move_btree+0xc32/0x1400 [ 197.724820][ T5789] bch2_scan_old_btree_nodes+0x15f/0x580 [ 197.730914][ T5789] bch2_fs_recovery+0x58b8/0x5b00 [ 197.736509][ T5789] bch2_fs_start+0x7b2/0xbd0 [ 197.741835][ T5789] bch2_fs_get_tree+0x13ea/0x22d0 [ 197.747447][ T5789] vfs_get_tree+0xb1/0x5a0 [ 197.752586][ T5789] do_new_mount+0x71f/0x15e0 [ 197.757548][ T5789] path_mount+0x742/0x1f10 [ 197.762599][ T5789] __se_sys_mount+0x722/0x810 [ 197.767936][ T5789] __x64_sys_mount+0xe4/0x150 [ 197.772797][ T5789] x64_sys_call+0x39bf/0x3c30 [ 197.777854][ T5789] do_syscall_64+0xcd/0x1e0 [ 197.782573][ T5789] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 197.788976][ T5789] [ 197.791394][ T5789] Uninit was stored to memory at: [ 197.796688][ T5789] bch2_sort_keys_keep_unwritten_whiteouts+0x12d5/0x19d0 [ 197.804182][ T5789] __bch2_btree_node_write+0x3ae8/0x6830 [ 197.810480][ T5789] bch2_btree_node_write+0xa5/0x2e0 [ 197.815816][ T5789] bch2_btree_node_rewrite+0x1442/0x1930 [ 197.821753][ T5789] bch2_move_btree+0xc32/0x1400 [ 197.826811][ T5789] bch2_scan_old_btree_nodes+0x15f/0x580 [ 197.832793][ T5789] bch2_fs_recovery+0x58b8/0x5b00 [ 197.838062][ T5789] bch2_fs_start+0x7b2/0xbd0 [ 197.842813][ T5789] bch2_fs_get_tree+0x13ea/0x22d0 [ 197.848225][ T5789] vfs_get_tree+0xb1/0x5a0 [ 197.852872][ T5789] do_new_mount+0x71f/0x15e0 [ 197.857772][ T5789] path_mount+0x742/0x1f10 [ 197.862392][ T5789] __se_sys_mount+0x722/0x810 [ 197.867206][ T5789] __x64_sys_mount+0xe4/0x150 [ 197.872235][ T5789] x64_sys_call+0x39bf/0x3c30 [ 197.877139][ T5789] do_syscall_64+0xcd/0x1e0 [ 197.881973][ T5789] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 197.888738][ T5789] [ 197.891179][ T5789] Uninit was created at: [ 197.895610][ T5789] ___kmalloc_large_node+0x22c/0x370 [ 197.901189][ T5789] __kmalloc_large_node_noprof+0x3f/0x1e0 [ 197.907133][ T5789] __kmalloc_node_noprof+0xc96/0x1250 [ 197.912816][ T5789] __kvmalloc_node_noprof+0xc0/0x2d0 [ 197.918338][ T5789] __bch2_btree_node_mem_alloc+0x2be/0xa80 [ 197.924273][ T5789] bch2_fs_btree_cache_init+0x4e4/0xb50 [ 197.930124][ T5789] bch2_fs_open+0x4d3a/0x5b40 [ 197.934997][ T5789] bch2_fs_get_tree+0x983/0x22d0 [ 197.943064][ T5789] vfs_get_tree+0xb1/0x5a0 [ 197.947893][ T5789] do_new_mount+0x71f/0x15e0 [ 197.952614][ T5789] path_mount+0x742/0x1f10 [ 197.957180][ T5789] __se_sys_mount+0x722/0x810 [ 197.962185][ T5789] __x64_sys_mount+0xe4/0x150 [ 197.967051][ T5789] x64_sys_call+0x39bf/0x3c30 [ 197.972124][ T5789] do_syscall_64+0xcd/0x1e0 [ 197.976783][ T5789] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 197.983016][ T5789] [ 197.985463][ T5789] CPU: 0 UID: 0 PID: 5789 Comm: syz-executor916 Not tainted 6.13.0-rc4-syzkaller-00004-gf07044dd0df0 #0 [ 197.996860][ T5789] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 198.007167][ T5789] ===================================================== [ 198.014451][ T5789] Disabling lock debugging due to kernel taint [ 198.021156][ T5789] Kernel panic - not syncing: kmsan.panic set ... [ 198.027693][ T5789] CPU: 0 UID: 0 PID: 5789 Comm: syz-executor916 Tainted: G B 6.13.0-rc4-syzkaller-00004-gf07044dd0df0 #0 [ 198.040756][ T5789] Tainted: [B]=BAD_PAGE [ 198.045163][ T5789] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 198.055323][ T5789] Call Trace: [ 198.058701][ T5789] [ 198.061720][ T5789] dump_stack_lvl+0x216/0x2d0 [ 198.066608][ T5789] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 198.072561][ T5789] dump_stack+0x1e/0x24 [ 198.076900][ T5789] panic+0x4e2/0xcf0 [ 198.080918][ T5789] ? kmsan_get_metadata+0x71/0x1c0 [ 198.086172][ T5789] kmsan_report+0x2c7/0x2d0 [ 198.090826][ T5789] ? kernel_text_address+0x129/0x1b0 [ 198.096369][ T5789] ? kmsan_get_metadata+0x13e/0x1c0 [ 198.101761][ T5789] ? __msan_warning+0x95/0x120 [ 198.106663][ T5789] ? bch2_bkey_ptrs_validate+0x589/0x2df0 [ 198.112695][ T5789] ? bch2_bkey_val_validate+0x2b5/0x440 [ 198.118389][ T5789] ? validate_bset_keys+0x1531/0x2080 [ 198.124014][ T5789] ? validate_bset_for_write+0x142/0x290 [ 198.129809][ T5789] ? __bch2_btree_node_write+0x53df/0x6830 [ 198.135893][ T5789] ? bch2_btree_node_write+0xa5/0x2e0 [ 198.141453][ T5789] ? bch2_btree_node_rewrite+0x1442/0x1930 [ 198.147515][ T5789] ? bch2_move_btree+0xc32/0x1400 [ 198.152720][ T5789] ? bch2_scan_old_btree_nodes+0x15f/0x580 [ 198.158847][ T5789] ? bch2_fs_recovery+0x58b8/0x5b00 [ 198.164190][ T5789] ? bch2_fs_start+0x7b2/0xbd0 [ 198.169096][ T5789] ? bch2_fs_get_tree+0x13ea/0x22d0 [ 198.174410][ T5789] ? vfs_get_tree+0xb1/0x5a0 [ 198.179168][ T5789] ? do_new_mount+0x71f/0x15e0 [ 198.184180][ T5789] ? path_mount+0x742/0x1f10 [ 198.188904][ T5789] ? __se_sys_mount+0x722/0x810 [ 198.193865][ T5789] ? __x64_sys_mount+0xe4/0x150 [ 198.198815][ T5789] ? x64_sys_call+0x39bf/0x3c30 [ 198.203894][ T5789] ? do_syscall_64+0xcd/0x1e0 [ 198.208699][ T5789] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 198.214997][ T5789] ? kmsan_get_metadata+0x13e/0x1c0 [ 198.220312][ T5789] ? kmsan_get_metadata+0x13e/0x1c0 [ 198.225628][ T5789] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 198.231561][ T5789] ? __module_address+0x4d/0x630 [ 198.236637][ T5789] ? kmsan_get_metadata+0x13e/0x1c0 [ 198.241953][ T5789] ? is_module_text_address+0x1b3/0x250 [ 198.247676][ T5789] ? kmsan_get_metadata+0x13e/0x1c0 [ 198.253136][ T5789] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 198.259103][ T5789] __msan_warning+0x95/0x120 [ 198.263908][ T5789] bch2_bkey_ptrs_validate+0x589/0x2df0 [ 198.269642][ T5789] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 198.275651][ T5789] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 198.282154][ T5789] ? kmsan_get_metadata+0x13e/0x1c0 [ 198.287554][ T5789] ? __pfx_bch2_bkey_ptrs_validate+0x10/0x10 [ 198.293714][ T5789] bch2_bkey_val_validate+0x2b5/0x440 [ 198.299251][ T5789] validate_bset_keys+0x1531/0x2080 [ 198.304678][ T5789] validate_bset_for_write+0x142/0x290 [ 198.310466][ T5789] __bch2_btree_node_write+0x53df/0x6830 [ 198.316305][ T5789] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 198.322274][ T5789] ? six_unlock_ip+0x40e/0x460 [ 198.327230][ T5789] bch2_btree_node_write+0xa5/0x2e0 [ 198.332648][ T5789] bch2_btree_node_rewrite+0x1442/0x1930 [ 198.338452][ T5789] ? bch2_btree_node_rewrite+0x32e/0x1930 [ 198.344471][ T5789] ? rewrite_old_nodes_pred+0x3a1/0x8a0 [ 198.350198][ T5789] bch2_move_btree+0xc32/0x1400 [ 198.355263][ T5789] ? bch2_move_btree+0x23b/0x1400 [ 198.360667][ T5789] ? bch2_move_btree+0x5b8/0x1400 [ 198.366184][ T5789] ? __pfx_rewrite_old_nodes_pred+0x10/0x10 [ 198.372342][ T5789] ? kmsan_get_metadata+0x13e/0x1c0 [ 198.377796][ T5789] bch2_scan_old_btree_nodes+0x15f/0x580 [ 198.383777][ T5789] bch2_fs_recovery+0x58b8/0x5b00 [ 198.389773][ T5789] bch2_fs_start+0x7b2/0xbd0 [ 198.394623][ T5789] bch2_fs_get_tree+0x13ea/0x22d0 [ 198.399838][ T5789] vfs_get_tree+0xb1/0x5a0 [ 198.406516][ T5789] ? mount_capable+0x97/0x120 [ 198.412582][ T5789] do_new_mount+0x71f/0x15e0 [ 198.418618][ T5789] ? kmsan_get_metadata+0x13e/0x1c0 [ 198.424456][ T5789] path_mount+0x742/0x1f10 [ 198.429151][ T5789] ? user_path_at+0x374/0x3e0 [ 198.434925][ T5789] __se_sys_mount+0x722/0x810 [ 198.440081][ T5789] ? ptrace_notify+0x263/0x320 [ 198.445346][ T5789] __x64_sys_mount+0xe4/0x150 [ 198.450696][ T5789] x64_sys_call+0x39bf/0x3c30 [ 198.455532][ T5789] do_syscall_64+0xcd/0x1e0 [ 198.460174][ T5789] ? clear_bhb_loop+0x25/0x80 [ 198.464997][ T5789] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 198.471047][ T5789] RIP: 0033:0x7fe7d1148daa [ 198.475556][ T5789] 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 [ 198.495518][ T5789] RSP: 002b:00007ffd3426e048 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 198.504413][ T5789] RAX: ffffffffffffffda RBX: 00007ffd3426e050 RCX: 00007fe7d1148daa [ 198.512530][ T5789] RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 00007ffd3426e050 [ 198.520925][ T5789] RBP: 0000000000000004 R08: 00007ffd3426e090 R09: 00000000000058fb [ 198.529072][ T5789] R10: 0000000000c00805 R11: 0000000000000282 R12: 00007ffd3426e090 [ 198.537194][ T5789] R13: 0000000000000003 R14: 0000000001000000 R15: 00007fe7d119003b [ 198.545381][ T5789] [ 198.548908][ T5789] Kernel Offset: disabled [ 198.553355][ T5789] Rebooting in 86400 seconds..