./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor623435763 <...> Warning: Permanently added '10.128.0.173' (ED25519) to the list of known hosts. execve("./syz-executor623435763", ["./syz-executor623435763"], 0x7fffd7e51d80 /* 10 vars */) = 0 brk(NULL) = 0x555562ce1000 brk(0x555562ce1d00) = 0x555562ce1d00 arch_prctl(ARCH_SET_FS, 0x555562ce1380) = 0 set_tid_address(0x555562ce1650) = 5779 set_robust_list(0x555562ce1660, 24) = 0 rseq(0x555562ce1ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor623435763", 4096) = 27 getrandom("\xea\x03\x1d\xbe\x52\xc9\x3d\x3c", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555562ce1d00 brk(0x555562d02d00) = 0x555562d02d00 brk(0x555562d03000) = 0x555562d03000 mprotect(0x7f3e37b19000, 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=0x555562ce1650) = 5780 ./strace-static-x86_64: Process 5780 attached [pid 5780] set_robust_list(0x555562ce1660, 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) = 0x7f3e2f600000 [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(0x7f3e2f600000, 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 [ 208.281124][ T5780] loop0: detected capacity change from 0 to 32768 [ 208.406264][ T5780] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,journal_flush_disabled,fsck,norecovery,nojournal_transaction_names,reconstruct_alloc,no_data_io [ 208.428572][ T5780] bcachefs (loop0): recovering from clean shutdown, journal seq 10 [ 208.437828][ T5780] bcachefs (loop0): Version upgrade required: [ 208.437828][ T5780] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete [ 208.437828][ T5780] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.13: inode_has_child_snapshots [ 208.437828][ T5780] 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 [ 208.513115][ T5780] bcachefs (loop0): dropping and reconstructing all alloc info [ 208.561107][ T5780] bcachefs (loop0): check_topology... done [ 208.567212][ T5780] bcachefs (loop0): accounting_read... done [ 208.575332][ T5780] bcachefs (loop0): alloc_read... done [ 208.581357][ T5780] bcachefs (loop0): stripes_read... done [ 208.587554][ T5780] bcachefs (loop0): snapshots_read... done [pid 5780] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS|MS_I_VERSION, "acl,direct_io,norecovery,fsck,journal_flush_disabled,noreTovery,btree_node_mem_ptr_optimization,reco"...) = 0 [pid 5780] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5780] chdir("./file1") = 0 [pid 5780] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5780] ioctl(4, LOOP_CLR_FD) = 0 [pid 5780] close(4) = 0 [pid 5780] mkdir("./bus", 000) = 0 [pid 5780] socket(AF_NETLINK, SOCK_RAW, NETLINK_NETFILTER) = 4 [pid 5780] exit_group(0) = ? [ 208.594110][ T5780] bcachefs (loop0): check_allocations... done [ 208.673811][ T5780] bcachefs (loop0): going read-write [ 208.691650][ T5780] bcachefs (loop0): done starting filesystem [pid 5780] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5780, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=74 /* 0.74 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5793 attached [pid 5793] set_robust_list(0x555562ce1660, 24 [pid 5779] <... clone resumed>, child_tidptr=0x555562ce1650) = 5793 [pid 5793] <... set_robust_list resumed>) = 0 [pid 5793] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5793] setpgid(0, 0) = 0 [pid 5793] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5793] write(3, "1000", 4) = 4 [pid 5793] close(3) = 0 executing program [pid 5793] write(1, "executing program\n", 18) = 18 [pid 5793] memfd_create("syzkaller", 0) = 3 [pid 5793] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3e2f600000 [ 209.059008][ T5790] ===================================================== [ 209.066388][ T5790] BUG: KMSAN: uninit-value in bch2_inode_v3_validate+0x481/0x5a0 [ 209.074687][ T5790] bch2_inode_v3_validate+0x481/0x5a0 [ 209.080535][ T5790] bch2_bkey_val_validate+0x2b5/0x440 [ 209.086289][ T5790] validate_bset_keys+0x1531/0x2080 [ 209.091792][ T5790] validate_bset_for_write+0x142/0x290 [ 209.097498][ T5790] __bch2_btree_node_write+0x53df/0x6830 [ 209.103499][ T5790] bch2_btree_node_write+0xa5/0x2e0 [ 209.109172][ T5790] __btree_node_flush+0x606/0x680 [ 209.114400][ T5790] bch2_btree_node_flush1+0x38/0x60 [ 209.120052][ T5790] journal_flush_pins+0xce6/0x1780 [ 209.125363][ T5790] __bch2_journal_reclaim+0xda8/0x1670 [ 209.131090][ T5790] bch2_journal_reclaim_thread+0x18e/0x760 [ 209.137626][ T5790] kthread+0x3e2/0x540 [ 209.141979][ T5790] ret_from_fork+0x6d/0x90 [ 209.146688][ T5790] ret_from_fork_asm+0x1a/0x30 [ 209.151873][ T5790] [ 209.154296][ T5790] Uninit was stored to memory at: [ 209.159718][ T5790] bch2_sort_keys_keep_unwritten_whiteouts+0x12d5/0x19d0 [ 209.167003][ T5790] __bch2_btree_node_write+0x3ae8/0x6830 [ 209.172999][ T5790] bch2_btree_node_write+0xa5/0x2e0 [ 209.178586][ T5790] __btree_node_flush+0x606/0x680 [ 209.184071][ T5790] bch2_btree_node_flush1+0x38/0x60 [ 209.189698][ T5790] journal_flush_pins+0xce6/0x1780 [ 209.195212][ T5790] __bch2_journal_reclaim+0xda8/0x1670 [ 209.201013][ T5790] bch2_journal_reclaim_thread+0x18e/0x760 [ 209.207118][ T5790] kthread+0x3e2/0x540 [ 209.211454][ T5790] ret_from_fork+0x6d/0x90 [ 209.216151][ T5790] ret_from_fork_asm+0x1a/0x30 [ 209.221434][ T5790] [ 209.223860][ T5790] Uninit was created at: [ 209.228515][ T5790] ___kmalloc_large_node+0x22c/0x370 [ 209.234026][ T5790] __kmalloc_large_node_noprof+0x3f/0x1e0 [ 209.240284][ T5790] __kmalloc_node_noprof+0xc96/0x1250 [ 209.245888][ T5790] __kvmalloc_node_noprof+0xc0/0x2d0 [ 209.251450][ T5790] btree_node_sort+0x78a/0x1d30 [ 209.256540][ T5790] bch2_btree_post_write_cleanup+0x1b0/0xf20 [ 209.262879][ T5790] bch2_btree_node_write+0x21c/0x2e0 [ 209.268684][ T5790] __btree_node_flush+0x606/0x680 [ 209.273997][ T5790] bch2_btree_node_flush0+0x35/0x60 [ 209.279615][ T5790] journal_flush_pins+0xce6/0x1780 [ 209.285002][ T5790] __bch2_journal_reclaim+0xda8/0x1670 [ 209.290791][ T5790] bch2_journal_reclaim_thread+0x18e/0x760 [ 209.296948][ T5790] kthread+0x3e2/0x540 [ 209.301295][ T5790] ret_from_fork+0x6d/0x90 [ 209.305916][ T5790] ret_from_fork_asm+0x1a/0x30 [pid 5793] 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 5793] munmap(0x7f3e2f600000, 138412032) = 0 [pid 5793] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5793] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5793] ioctl(4, LOOP_CLR_FD) = 0 [ 209.311003][ T5790] [ 209.313463][ T5790] CPU: 1 UID: 0 PID: 5790 Comm: bch-reclaim/loo Not tainted 6.13.0-rc6-syzkaller-00231-g77a903cd8e5a #0 [ 209.324985][ T5790] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 209.335376][ T5790] ===================================================== [ 209.342604][ T5790] Disabling lock debugging due to kernel taint [ 209.348961][ T5790] Kernel panic - not syncing: kmsan.panic set ... [pid 5793] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5793] close(4) = 0 [ 209.355625][ T5790] CPU: 1 UID: 0 PID: 5790 Comm: bch-reclaim/loo Tainted: G B 6.13.0-rc6-syzkaller-00231-g77a903cd8e5a #0 [ 209.368491][ T5790] Tainted: [B]=BAD_PAGE [ 209.372794][ T5790] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 209.383016][ T5790] Call Trace: [ 209.386471][ T5790] [ 209.389525][ T5790] dump_stack_lvl+0x216/0x2d0 [ 209.394426][ T5790] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 209.400452][ T5790] dump_stack+0x1e/0x24 [ 209.404834][ T5790] panic+0x4e2/0xcf0 [ 209.408936][ T5790] ? kmsan_get_metadata+0xc1/0x1c0 [ 209.414267][ T5790] kmsan_report+0x2c7/0x2d0 [ 209.418948][ T5790] ? kmsan_get_metadata+0x13e/0x1c0 [ 209.424423][ T5790] ? kmsan_get_metadata+0x13e/0x1c0 [ 209.429817][ T5790] ? __msan_warning+0x95/0x120 [ 209.434807][ T5790] ? bch2_inode_v3_validate+0x481/0x5a0 [ 209.440580][ T5790] ? bch2_bkey_val_validate+0x2b5/0x440 [ 209.446349][ T5790] ? validate_bset_keys+0x1531/0x2080 [ 209.451960][ T5790] ? validate_bset_for_write+0x142/0x290 [ 209.458006][ T5790] ? __bch2_btree_node_write+0x53df/0x6830 [ 209.464228][ T5790] ? bch2_btree_node_write+0xa5/0x2e0 [ 209.469828][ T5790] ? __btree_node_flush+0x606/0x680 [ 209.475233][ T5790] ? bch2_btree_node_flush1+0x38/0x60 [ 209.480815][ T5790] ? journal_flush_pins+0xce6/0x1780 [ 209.486298][ T5790] ? __bch2_journal_reclaim+0xda8/0x1670 [ 209.492150][ T5790] ? bch2_journal_reclaim_thread+0x18e/0x760 [ 209.498353][ T5790] ? kthread+0x3e2/0x540 [ 209.502784][ T5790] ? ret_from_fork+0x6d/0x90 [ 209.507658][ T5790] ? ret_from_fork_asm+0x1a/0x30 [ 209.512912][ T5790] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 209.519012][ T5790] ? kmsan_get_metadata+0x13e/0x1c0 [ 209.524540][ T5790] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 209.531110][ T5790] ? kmsan_get_metadata+0x13e/0x1c0 [ 209.536529][ T5790] ? kmsan_get_metadata+0x13e/0x1c0 [ 209.541915][ T5790] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 209.547914][ T5790] ? kmsan_get_metadata+0x13e/0x1c0 [ 209.553293][ T5790] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 209.559310][ T5790] ? kmsan_get_metadata+0x13e/0x1c0 [ 209.564707][ T5790] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 209.570712][ T5790] __msan_warning+0x95/0x120 [ 209.575704][ T5790] bch2_inode_v3_validate+0x481/0x5a0 [ 209.581308][ T5790] ? __pfx_bch2_inode_v3_validate+0x10/0x10 [ 209.587439][ T5790] bch2_bkey_val_validate+0x2b5/0x440 [ 209.593060][ T5790] validate_bset_keys+0x1531/0x2080 [ 209.598575][ T5790] validate_bset_for_write+0x142/0x290 [ 209.604279][ T5790] __bch2_btree_node_write+0x53df/0x6830 [ 209.610269][ T5790] ? __update_load_avg_se+0x933/0x11a0 [ 209.616256][ T5790] bch2_btree_node_write+0xa5/0x2e0 [ 209.621785][ T5790] __btree_node_flush+0x606/0x680 [ 209.627035][ T5790] ? __btree_node_flush+0xd3/0x680 [ 209.632366][ T5790] ? __pfx_bch2_btree_node_flush1+0x10/0x10 [ 209.638661][ T5790] bch2_btree_node_flush1+0x38/0x60 [ 209.644078][ T5790] journal_flush_pins+0xce6/0x1780 [ 209.649437][ T5790] __bch2_journal_reclaim+0xda8/0x1670 [ 209.655112][ T5790] ? __try_to_del_timer_sync+0x3d3/0x420 [ 209.661040][ T5790] bch2_journal_reclaim_thread+0x18e/0x760 [ 209.667068][ T5790] kthread+0x3e2/0x540 [ 209.671321][ T5790] ? __pfx_bch2_journal_reclaim_thread+0x10/0x10 [ 209.677880][ T5790] ? __pfx_kthread+0x10/0x10 [ 209.682666][ T5790] ret_from_fork+0x6d/0x90 [ 209.687294][ T5790] ? __pfx_kthread+0x10/0x10 [ 209.692080][ T5790] ret_from_fork_asm+0x1a/0x30 [ 209.697092][ T5790] [ 209.700575][ T5790] Kernel Offset: disabled [ 209.704970][ T5790] Rebooting in 86400 seconds..