./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor487828423 <...> Warning: Permanently added '10.128.0.53' (ED25519) to the list of known hosts. execve("./syz-executor487828423", ["./syz-executor487828423"], 0x7ffd6de81c00 /* 10 vars */) = 0 brk(NULL) = 0x555571f56000 brk(0x555571f56d00) = 0x555571f56d00 arch_prctl(ARCH_SET_FS, 0x555571f56380) = 0 set_tid_address(0x555571f56650) = 5776 set_robust_list(0x555571f56660, 24) = 0 rseq(0x555571f56ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor487828423", 4096) = 27 getrandom("\xe4\x41\x12\x20\xc6\x16\xbe\x9f", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555571f56d00 brk(0x555571f77d00) = 0x555571f77d00 brk(0x555571f78000) = 0x555571f78000 mprotect(0x7f7fd8079000, 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=0x555571f56650) = 5777 ./strace-static-x86_64: Process 5777 attached [pid 5777] set_robust_list(0x555571f56660, 24) = 0 [pid 5777] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5777] setpgid(0, 0) = 0 [pid 5777] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5777] write(3, "1000", 4executing program ) = 4 [pid 5777] close(3) = 0 [pid 5777] write(1, "executing program\n", 18) = 18 [pid 5777] memfd_create("syzkaller", 0) = 3 [pid 5777] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7fcfa00000 [pid 5777] 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 5777] munmap(0x7f7fcfa00000, 138412032) = 0 [pid 5777] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5777] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5777] close(3) = 0 [pid 5777] close(4) = 0 [pid 5777] mkdir("./file1", 0777) = 0 [ 265.877291][ T5777] loop0: detected capacity change from 0 to 32768 [ 266.031476][ T5777] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=crc64,nojournal_transaction_names,reconstruct_alloc [ 266.048139][ T5777] bcachefs (loop0): recovering from clean shutdown, journal seq 10 [ 266.058198][ T5777] bcachefs (loop0): Version upgrade required: [ 266.058198][ T5777] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete [ 266.058198][ T5777] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.13: inode_has_child_snapshots [ 266.058198][ T5777] 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 [ 266.134476][ T5777] bcachefs (loop0): dropping and reconstructing all alloc info [ 266.189565][ T5777] bcachefs (loop0): accounting_read... done [ 266.196618][ T5777] bcachefs (loop0): alloc_read... done [ 266.202736][ T5777] bcachefs (loop0): stripes_read... done [ 266.208921][ T5777] bcachefs (loop0): snapshots_read... done [ 266.215867][ T5777] bcachefs (loop0): check_allocations... done [ 266.320247][ T5777] bcachefs (loop0): going read-write [ 266.329939][ T5777] bcachefs (loop0): journal_replay... [ 266.370297][ T3524] ===================================================== [ 266.383548][ T3524] BUG: KMSAN: uninit-value in bch2_bucket_alloc_early+0x11c0/0x2520 [ 266.391906][ T3524] bch2_bucket_alloc_early+0x11c0/0x2520 [ 266.397904][ T3524] bch2_bucket_alloc_trans+0x8e6/0x3fb0 [ 266.403664][ T3524] bch2_bucket_alloc_set_trans+0x959/0x1650 [ 266.410267][ T3524] __open_bucket_add_buckets+0x1dec/0x3070 [ 266.416626][ T3524] open_bucket_add_buckets+0x328/0x530 [ 266.422333][ T3524] bch2_alloc_sectors_start_trans+0x1833/0x32b0 [ 266.428908][ T3524] bch2_btree_reserve_get+0x9d6/0x2290 [ 266.434831][ T3524] bch2_btree_update_start+0x1af9/0x2d60 [ 266.440752][ T3524] bch2_btree_split_leaf+0x120/0xc00 [ 266.446409][ T3524] bch2_trans_commit_error+0x1c0/0x1d60 [ 266.452231][ T3524] __bch2_trans_commit+0x210f/0xd190 [ 266.457874][ T3524] btree_interior_update_work+0x2080/0x4870 [ 266.463987][ T3524] process_scheduled_works+0xae0/0x1c40 [ 266.470215][ T3524] worker_thread+0xea7/0x14f0 [ 266.475332][ T3524] kthread+0x3e2/0x540 [ 266.479592][ T3524] ret_from_fork+0x6d/0x90 [ 266.484460][ T3524] ret_from_fork_asm+0x1a/0x30 [ 266.489554][ T3524] [ 266.491963][ T3524] Uninit was created at: [ 266.496780][ T3524] ___kmalloc_large_node+0x22c/0x370 [ 266.502353][ T3524] __kmalloc_large_node_noprof+0x3f/0x1e0 [ 266.508483][ T3524] __kmalloc_node_noprof+0xc96/0x1250 [ 266.514647][ T3524] __kvmalloc_node_noprof+0xc0/0x2d0 [ 266.520119][ T3524] __bch2_btree_node_mem_alloc+0x2be/0xa80 [ 266.526262][ T3524] bch2_fs_btree_cache_init+0x4e4/0xb50 [ 266.532086][ T3524] bch2_fs_open+0x4d3a/0x5b40 [ 266.537160][ T3524] bch2_fs_get_tree+0x983/0x22d0 [ 266.542432][ T3524] vfs_get_tree+0xb1/0x5a0 [ 266.547481][ T3524] do_new_mount+0x71f/0x15e0 [ 266.552472][ T3524] path_mount+0x742/0x1f10 [ 266.557439][ T3524] __se_sys_mount+0x722/0x810 [ 266.562369][ T3524] __x64_sys_mount+0xe4/0x150 [ 266.567435][ T3524] x64_sys_call+0x39bf/0x3c30 [ 266.572457][ T3524] do_syscall_64+0xcd/0x1e0 [ 266.577424][ T3524] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 266.583616][ T3524] [ 266.586342][ T3524] CPU: 1 UID: 0 PID: 3524 Comm: kworker/u8:11 Not tainted 6.13.0-rc5-syzkaller-00163-gab75170520d4 #0 [ 266.597635][ T3524] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 266.608145][ T3524] Workqueue: btree_update btree_interior_update_work [ 266.615262][ T3524] ===================================================== [ 266.622313][ T3524] Disabling lock debugging due to kernel taint [ 266.628778][ T3524] Kernel panic - not syncing: kmsan.panic set ... [ 266.635472][ T3524] CPU: 1 UID: 0 PID: 3524 Comm: kworker/u8:11 Tainted: G B 6.13.0-rc5-syzkaller-00163-gab75170520d4 #0 [ 266.648206][ T3524] Tainted: [B]=BAD_PAGE [ 266.652454][ T3524] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 266.662662][ T3524] Workqueue: btree_update btree_interior_update_work [ 266.669544][ T3524] Call Trace: [ 266.672924][ T3524] [ 266.675966][ T3524] dump_stack_lvl+0x216/0x2d0 [ 266.680834][ T3524] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 266.686840][ T3524] dump_stack+0x1e/0x24 [ 266.691212][ T3524] panic+0x4e2/0xcf0 [ 266.695461][ T3524] ? kmsan_get_metadata+0xb1/0x1c0 [ 266.700770][ T3524] kmsan_report+0x2c7/0x2d0 [ 266.705460][ T3524] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 266.711449][ T3524] ? __msan_warning+0x95/0x120 [ 266.716420][ T3524] ? bch2_bucket_alloc_early+0x11c0/0x2520 [ 266.722425][ T3524] ? bch2_bucket_alloc_trans+0x8e6/0x3fb0 [ 266.728364][ T3524] ? bch2_bucket_alloc_set_trans+0x959/0x1650 [ 266.734640][ T3524] ? __open_bucket_add_buckets+0x1dec/0x3070 [ 266.740883][ T3524] ? open_bucket_add_buckets+0x328/0x530 [ 266.746725][ T3524] ? bch2_alloc_sectors_start_trans+0x1833/0x32b0 [ 266.753330][ T3524] ? bch2_btree_reserve_get+0x9d6/0x2290 [ 266.759141][ T3524] ? bch2_btree_update_start+0x1af9/0x2d60 [ 266.765240][ T3524] ? bch2_btree_split_leaf+0x120/0xc00 [ 266.770894][ T3524] ? bch2_trans_commit_error+0x1c0/0x1d60 [ 266.776830][ T3524] ? __bch2_trans_commit+0x210f/0xd190 [ 266.782487][ T3524] ? btree_interior_update_work+0x2080/0x4870 [ 266.788741][ T3524] ? process_scheduled_works+0xae0/0x1c40 [ 266.794700][ T3524] ? worker_thread+0xea7/0x14f0 [ 266.799841][ T3524] ? kthread+0x3e2/0x540 [ 266.804260][ T3524] ? ret_from_fork+0x6d/0x90 [ 266.809090][ T3524] ? ret_from_fork_asm+0x1a/0x30 [ 266.814338][ T3524] ? kmsan_get_metadata+0x13e/0x1c0 [ 266.819705][ T3524] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 266.825705][ T3524] ? bch2_bucket_alloc_early+0x107d/0x2520 [ 266.831798][ T3524] ? filter_irq_stacks+0x60/0x1a0 [ 266.837077][ T3524] ? stack_depot_save_flags+0x2c/0x750 [ 266.842724][ T3524] ? kmsan_get_metadata+0x13e/0x1c0 [ 266.848091][ T3524] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 266.854987][ T3524] ? kmsan_get_metadata+0x13e/0x1c0 [ 266.860405][ T3524] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 266.866388][ T3524] __msan_warning+0x95/0x120 [ 266.871182][ T3524] bch2_bucket_alloc_early+0x11c0/0x2520 [ 266.877000][ T3524] ? kmsan_get_metadata+0x13e/0x1c0 [ 266.882485][ T3524] ? kmsan_get_metadata+0x13e/0x1c0 [ 266.887898][ T3524] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 266.894020][ T3524] ? bch2_bucket_alloc_early+0x1aa/0x2520 [ 266.900039][ T3524] ? bch2_bucket_alloc_early+0x1aa/0x2520 [ 266.905989][ T3524] ? __msan_memset+0xf5/0x1b0 [ 266.910874][ T3524] bch2_bucket_alloc_trans+0x8e6/0x3fb0 [ 266.916635][ T3524] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 266.922690][ T3524] ? filter_irq_stacks+0x164/0x1a0 [ 266.928028][ T3524] ? kmsan_get_metadata+0x13e/0x1c0 [ 266.933459][ T3524] ? kmsan_get_metadata+0x13e/0x1c0 [ 266.938918][ T3524] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 266.944914][ T3524] ? bch2_bucket_alloc_trans+0xb66/0x3fb0 [ 266.951222][ T3524] ? kmsan_get_metadata+0x13e/0x1c0 [ 266.956673][ T3524] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 266.962784][ T3524] ? bch2_bucket_alloc_trans+0xb66/0x3fb0 [ 266.968754][ T3524] ? bch2_bucket_alloc_set_trans+0x732/0x1650 [ 266.975039][ T3524] ? kmsan_get_metadata+0x13e/0x1c0 [ 266.980489][ T3524] bch2_bucket_alloc_set_trans+0x959/0x1650 [ 266.986647][ T3524] ? bch2_btree_path_verify+0x36d/0x4a0 [ 266.992442][ T3524] ? kmsan_get_metadata+0x13e/0x1c0 [ 266.997828][ T3524] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 267.003834][ T3524] ? __open_bucket_add_buckets+0x3bb/0x3070 [ 267.009964][ T3524] ? kmsan_internal_set_shadow_origin+0x41/0x100 [ 267.016614][ T3524] __open_bucket_add_buckets+0x1dec/0x3070 [ 267.022641][ T3524] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 267.028680][ T3524] ? bch2_btree_path_verify_locks+0x1423/0x1490 [ 267.035151][ T3524] ? kmsan_get_metadata+0x13e/0x1c0 [ 267.040580][ T3524] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 267.046726][ T3524] ? bch2_alloc_sectors_start_trans+0xd1/0x32b0 [ 267.053227][ T3524] open_bucket_add_buckets+0x328/0x530 [ 267.059014][ T3524] ? kmsan_get_metadata+0x13e/0x1c0 [ 267.064428][ T3524] bch2_alloc_sectors_start_trans+0x1833/0x32b0 [ 267.070901][ T3524] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 267.077001][ T3524] ? kmsan_get_metadata+0x13e/0x1c0 [ 267.082426][ T3524] bch2_btree_reserve_get+0x9d6/0x2290 [ 267.088329][ T3524] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 267.094398][ T3524] bch2_btree_update_start+0x1af9/0x2d60 [ 267.100388][ T3524] ? bch2_btree_split_leaf+0x120/0xc00 [ 267.106103][ T3524] bch2_btree_split_leaf+0x120/0xc00 [ 267.111698][ T3524] ? kmsan_get_metadata+0x13e/0x1c0 [ 267.117095][ T3524] bch2_trans_commit_error+0x1c0/0x1d60 [ 267.122905][ T3524] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 267.128923][ T3524] ? bch2_trans_verify_locks+0x5bc/0x630 [ 267.134830][ T3524] ? btree_interior_update_work+0x2080/0x4870 [ 267.141148][ T3524] ? btree_interior_update_work+0x2080/0x4870 [ 267.147552][ T3524] __bch2_trans_commit+0x210f/0xd190 [ 267.153057][ T3524] ? bch2_trigger_extent+0xf9b/0x11a0 [ 267.158811][ T3524] btree_interior_update_work+0x2080/0x4870 [ 267.164967][ T3524] ? __pfx_btree_interior_update_work+0x10/0x10 [ 267.171443][ T3524] process_scheduled_works+0xae0/0x1c40 [ 267.177248][ T3524] worker_thread+0xea7/0x14f0 [ 267.182187][ T3524] kthread+0x3e2/0x540 [ 267.186467][ T3524] ? __pfx_worker_thread+0x10/0x10 [ 267.191906][ T3524] ? __pfx_kthread+0x10/0x10 [ 267.196719][ T3524] ret_from_fork+0x6d/0x90 [ 267.201371][ T3524] ? __pfx_kthread+0x10/0x10 [ 267.206146][ T3524] ret_from_fork_asm+0x1a/0x30 [ 267.211218][ T3524] [ 267.215043][ T3524] Kernel Offset: disabled [ 267.219547][ T3524] Rebooting in 86400 seconds..