./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2357155485 <...> Warning: Permanently added '10.128.0.72' (ED25519) to the list of known hosts. execve("./syz-executor2357155485", ["./syz-executor2357155485"], 0x7ffe8f683d30 /* 10 vars */) = 0 brk(NULL) = 0x55557baf0000 brk(0x55557baf0d00) = 0x55557baf0d00 arch_prctl(ARCH_SET_FS, 0x55557baf0380) = 0 set_tid_address(0x55557baf0650) = 5781 set_robust_list(0x55557baf0660, 24) = 0 rseq(0x55557baf0ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2357155485", 4096) = 28 getrandom("\x83\x3d\xec\xd9\xec\x3c\x4e\x5d", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557baf0d00 brk(0x55557bb11d00) = 0x55557bb11d00 brk(0x55557bb12000) = 0x55557bb12000 mprotect(0x7fed4218f000, 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./strace-static-x86_64: Process 5782 attached , child_tidptr=0x55557baf0650) = 5782 [pid 5782] set_robust_list(0x55557baf0660, 24) = 0 [pid 5782] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5782] setpgid(0, 0) = 0 [pid 5782] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5782] write(3, "1000", 4executing program ) = 4 [pid 5782] close(3) = 0 [pid 5782] write(1, "executing program\n", 18) = 18 [pid 5782] memfd_create("syzkaller", 0) = 3 [pid 5782] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fed39c00000 [pid 5782] 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 5782] munmap(0x7fed39c00000, 138412032) = 0 [pid 5782] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5782] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5782] close(3) = 0 [pid 5782] close(4) = 0 [pid 5782] mkdir("./file1", 0777) = 0 [ 185.731962][ T5782] loop0: detected capacity change from 0 to 32768 [ 185.874450][ T5782] 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 [ 185.896392][ T5782] bcachefs (loop0): recovering from clean shutdown, journal seq 10 [ 185.906187][ T5782] bcachefs (loop0): Version upgrade required: [ 185.906187][ T5782] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete [ 185.906187][ T5782] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.13: inode_has_child_snapshots [ 185.906187][ T5782] 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 [ 185.980805][ T5782] bcachefs (loop0): dropping and reconstructing all alloc info [ 186.029874][ T5782] bcachefs (loop0): check_topology... done [ 186.036036][ T5782] bcachefs (loop0): accounting_read... done [ 186.042908][ T5782] bcachefs (loop0): alloc_read... done [ 186.048857][ T5782] bcachefs (loop0): stripes_read... done [ 186.054794][ T5782] bcachefs (loop0): snapshots_read... done [pid 5782] 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 5782] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5782] chdir("./file1") = 0 [pid 5782] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5782] ioctl(4, LOOP_CLR_FD) = 0 [pid 5782] close(4) = 0 [ 186.061280][ T5782] bcachefs (loop0): check_allocations... done [ 186.141439][ T5782] bcachefs (loop0): going read-write [ 186.158924][ T5782] bcachefs (loop0): done starting filesystem [pid 5782] openat(AT_FDCWD, ".pending_reads", O_WRONLY|O_CREAT|O_EXCL|O_SYNC|O_NOFOLLOW|O_CLOEXEC, 06222) = 4 [pid 5782] exit_group(0) = ? [pid 5782] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5782, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=72 /* 0.72 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 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 5794 attached , child_tidptr=0x55557baf0650) = 5794 [pid 5794] set_robust_list(0x55557baf0660, 24) = 0 [pid 5794] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5794] setpgid(0, 0) = 0 [pid 5794] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5794] write(3, "1000", 4) = 4 [pid 5794] close(3) = 0 executing program [pid 5794] write(1, "executing program\n", 18) = 18 [pid 5794] memfd_create("syzkaller", 0) = 3 [pid 5794] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fed39c00000 [ 186.648422][ T5791] ===================================================== [ 186.655684][ T5791] BUG: KMSAN: uninit-value in bch2_inode_v3_validate+0x481/0x5a0 [ 186.663890][ T5791] bch2_inode_v3_validate+0x481/0x5a0 [ 186.669683][ T5791] bch2_bkey_val_validate+0x2b5/0x440 [ 186.675288][ T5791] validate_bset_keys+0x1531/0x2080 [ 186.680868][ T5791] validate_bset_for_write+0x142/0x290 [ 186.686575][ T5791] __bch2_btree_node_write+0x53df/0x6830 [ 186.692670][ T5791] bch2_btree_node_write+0xa5/0x2e0 [ 186.698239][ T5791] __btree_node_flush+0x606/0x680 [ 186.703462][ T5791] bch2_btree_node_flush1+0x38/0x60 [ 186.709078][ T5791] journal_flush_pins+0xce6/0x1780 [ 186.714381][ T5791] __bch2_journal_reclaim+0xda8/0x1670 [ 186.720167][ T5791] bch2_journal_reclaim_thread+0x18e/0x760 [ 186.726202][ T5791] kthread+0x3e2/0x540 [ 186.730637][ T5791] ret_from_fork+0x6d/0x90 [ 186.735259][ T5791] ret_from_fork_asm+0x1a/0x30 [ 186.740358][ T5791] [ 186.742788][ T5791] Uninit was stored to memory at: [pid 5794] 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 [ 186.748261][ T5791] bch2_sort_keys_keep_unwritten_whiteouts+0x12d5/0x19d0 [ 186.755546][ T5791] __bch2_btree_node_write+0x3ae8/0x6830 [ 186.761627][ T5791] bch2_btree_node_write+0xa5/0x2e0 [ 186.767070][ T5791] __btree_node_flush+0x606/0x680 [ 186.772587][ T5791] bch2_btree_node_flush1+0x38/0x60 [ 186.778104][ T5791] journal_flush_pins+0xce6/0x1780 [ 186.783509][ T5791] __bch2_journal_reclaim+0xda8/0x1670 [ 186.789404][ T5791] bch2_journal_reclaim_thread+0x18e/0x760 [pid 5794] munmap(0x7fed39c00000, 138412032) = 0 [pid 5794] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5794] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5794] ioctl(4, LOOP_CLR_FD) = 0 [pid 5794] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [ 186.795421][ T5791] kthread+0x3e2/0x540 [ 186.799933][ T5791] ret_from_fork+0x6d/0x90 [ 186.804559][ T5791] ret_from_fork_asm+0x1a/0x30 [ 186.809725][ T5791] [ 186.812161][ T5791] Uninit was created at: [ 186.816682][ T5791] ___kmalloc_large_node+0x22c/0x370 [ 186.822323][ T5791] __kmalloc_large_node_noprof+0x3f/0x1e0 [ 186.828618][ T5791] __kmalloc_node_noprof+0xc96/0x1250 [ 186.834231][ T5791] __kvmalloc_node_noprof+0xc0/0x2d0 [ 186.839831][ T5791] btree_node_sort+0x78a/0x1d30 [ 186.844921][ T5791] bch2_btree_post_write_cleanup+0x1b0/0xf20 [ 186.851356][ T5791] bch2_btree_node_write+0x21c/0x2e0 [ 186.856879][ T5791] __btree_node_flush+0x606/0x680 [ 186.862454][ T5791] bch2_btree_node_flush0+0x35/0x60 [ 186.868054][ T5791] journal_flush_pins+0xce6/0x1780 [ 186.873361][ T5791] __bch2_journal_reclaim+0xda8/0x1670 [ 186.879232][ T5791] bch2_journal_reclaim_thread+0x18e/0x760 [ 186.885252][ T5791] kthread+0x3e2/0x540 [ 186.889714][ T5791] ret_from_fork+0x6d/0x90 [ 186.894327][ T5791] ret_from_fork_asm+0x1a/0x30 [ 186.899444][ T5791] [ 186.901900][ T5791] CPU: 0 UID: 0 PID: 5791 Comm: bch-reclaim/loo Not tainted 6.13.0-rc4-syzkaller-00071-gfd0584d220fe #0 [ 186.913398][ T5791] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 186.923823][ T5791] ===================================================== [ 186.931042][ T5791] Disabling lock debugging due to kernel taint [ 186.937338][ T5791] Kernel panic - not syncing: kmsan.panic set ... [pid 5794] close(4) = 0 [ 186.943921][ T5791] CPU: 0 UID: 0 PID: 5791 Comm: bch-reclaim/loo Tainted: G B 6.13.0-rc4-syzkaller-00071-gfd0584d220fe #0 [ 186.956755][ T5791] Tainted: [B]=BAD_PAGE [ 186.961033][ T5791] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 186.971261][ T5791] Call Trace: [ 186.974678][ T5791] [ 186.977725][ T5791] dump_stack_lvl+0x216/0x2d0 [ 186.982631][ T5791] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 186.988642][ T5791] dump_stack+0x1e/0x24 [ 186.993013][ T5791] panic+0x4e2/0xcf0 [ 186.997129][ T5791] ? kmsan_get_metadata+0x131/0x1c0 [ 187.002539][ T5791] kmsan_report+0x2c7/0x2d0 [ 187.007229][ T5791] ? kmsan_get_metadata+0x13e/0x1c0 [ 187.012622][ T5791] ? kmsan_get_metadata+0x13e/0x1c0 [ 187.018011][ T5791] ? __msan_warning+0x95/0x120 [ 187.023020][ T5791] ? bch2_inode_v3_validate+0x481/0x5a0 [ 187.028793][ T5791] ? bch2_bkey_val_validate+0x2b5/0x440 [ 187.034578][ T5791] ? validate_bset_keys+0x1531/0x2080 [ 187.040187][ T5791] ? validate_bset_for_write+0x142/0x290 [ 187.046076][ T5791] ? __bch2_btree_node_write+0x53df/0x6830 [ 187.052135][ T5791] ? bch2_btree_node_write+0xa5/0x2e0 [ 187.057746][ T5791] ? __btree_node_flush+0x606/0x680 [ 187.063149][ T5791] ? bch2_btree_node_flush1+0x38/0x60 [ 187.068727][ T5791] ? journal_flush_pins+0xce6/0x1780 [ 187.074213][ T5791] ? __bch2_journal_reclaim+0xda8/0x1670 [ 187.080063][ T5791] ? bch2_journal_reclaim_thread+0x18e/0x760 [ 187.086248][ T5791] ? kthread+0x3e2/0x540 [ 187.090769][ T5791] ? ret_from_fork+0x6d/0x90 [ 187.095559][ T5791] ? ret_from_fork_asm+0x1a/0x30 [ 187.100730][ T5791] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 187.106741][ T5791] ? kmsan_get_metadata+0x13e/0x1c0 [ 187.112140][ T5791] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 187.118717][ T5791] ? kmsan_get_metadata+0x13e/0x1c0 [ 187.124126][ T5791] ? kmsan_get_metadata+0x13e/0x1c0 [ 187.129519][ T5791] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 187.135533][ T5791] ? kmsan_get_metadata+0x13e/0x1c0 [ 187.140943][ T5791] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 187.146972][ T5791] ? kmsan_get_metadata+0x13e/0x1c0 [ 187.152374][ T5791] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 187.158390][ T5791] __msan_warning+0x95/0x120 [ 187.163220][ T5791] bch2_inode_v3_validate+0x481/0x5a0 [ 187.168831][ T5791] ? __pfx_bch2_inode_v3_validate+0x10/0x10 [ 187.174964][ T5791] bch2_bkey_val_validate+0x2b5/0x440 [ 187.180598][ T5791] validate_bset_keys+0x1531/0x2080 [ 187.186184][ T5791] validate_bset_for_write+0x142/0x290 [ 187.191903][ T5791] __bch2_btree_node_write+0x53df/0x6830 [ 187.197803][ T5791] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 187.203830][ T5791] ? filter_irq_stacks+0x60/0x1a0 [ 187.209215][ T5791] bch2_btree_node_write+0xa5/0x2e0 [ 187.214652][ T5791] __btree_node_flush+0x606/0x680 [ 187.219882][ T5791] ? __btree_node_flush+0xd3/0x680 [ 187.225228][ T5791] ? __pfx_bch2_btree_node_flush1+0x10/0x10 [ 187.231341][ T5791] bch2_btree_node_flush1+0x38/0x60 [ 187.236745][ T5791] journal_flush_pins+0xce6/0x1780 [ 187.242103][ T5791] __bch2_journal_reclaim+0xda8/0x1670 [ 187.247776][ T5791] ? __try_to_del_timer_sync+0x3d3/0x420 [ 187.253673][ T5791] bch2_journal_reclaim_thread+0x18e/0x760 [ 187.259724][ T5791] kthread+0x3e2/0x540 [ 187.263980][ T5791] ? __pfx_bch2_journal_reclaim_thread+0x10/0x10 [ 187.270529][ T5791] ? __pfx_kthread+0x10/0x10 [ 187.275334][ T5791] ret_from_fork+0x6d/0x90 [ 187.279951][ T5791] ? __pfx_kthread+0x10/0x10 [ 187.284742][ T5791] ret_from_fork_asm+0x1a/0x30 [ 187.289758][ T5791] [ 187.293228][ T5791] Kernel Offset: disabled [ 187.297628][ T5791] Rebooting in 86400 seconds..