./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor441063074 <...> Warning: Permanently added '10.128.0.208' (ED25519) to the list of known hosts. execve("./syz-executor441063074", ["./syz-executor441063074"], 0x7ffcef6d73b0 /* 10 vars */) = 0 brk(NULL) = 0x555588f75000 brk(0x555588f75d00) = 0x555588f75d00 arch_prctl(ARCH_SET_FS, 0x555588f75380) = 0 set_tid_address(0x555588f75650) = 5781 set_robust_list(0x555588f75660, 24) = 0 rseq(0x555588f75ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor441063074", 4096) = 27 getrandom("\x44\x88\xb4\x54\x88\xae\x4f\x89", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555588f75d00 brk(0x555588f96d00) = 0x555588f96d00 brk(0x555588f97000) = 0x555588f97000 mprotect(0x7ff893f73000, 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=0x555588f75650) = 5782 ./strace-static-x86_64: Process 5782 attached [pid 5782] set_robust_list(0x555588f75660, 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", 4) = 4 [pid 5782] close(3executing program ) = 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) = 0x7ff88ba00000 [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(0x7ff88ba00000, 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 [ 184.051982][ T5782] loop0: detected capacity change from 0 to 32768 [ 184.186278][ T5782] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=crc64,norecovery,reconstruct_alloc [ 184.201198][ T5782] bcachefs (loop0): recovering from clean shutdown, journal seq 10 [ 184.210911][ T5782] bcachefs (loop0): Version upgrade required: [ 184.210911][ T5782] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete [ 184.210911][ T5782] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.13: inode_has_child_snapshots [ 184.210911][ 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 [ 184.285868][ T5782] bcachefs (loop0): dropping and reconstructing all alloc info [ 184.333483][ T5782] bcachefs (loop0): accounting_read... done [ 184.340399][ T5782] bcachefs (loop0): alloc_read... done [ 184.346439][ T5782] bcachefs (loop0): stripes_read... done [ 184.352350][ T5782] bcachefs (loop0): snapshots_read... done [pid 5782] mount("/dev/loop0", "./file1", "bcachefs", 0, "\x64\x61\x74\x61\x5f\x63\x68\x65\x63\x6b\x73\x75\x6d\x3d\x63\x72\x63\x36\x34\x2c\x6a\x6f\x75\x72\x6e\x61\x6c\x5f\x74\x72\x61\x6e\x73\x61\x63\x74\x69\x6f\x6e\x5f\x6e\x61\x6d\x65\x73\x2c\x6e\x6f\x72\x65\x63\x6f\x76\x65\x72\x79\x2c\x73\x68\x61\x72\x64\x5f\x69\x6e\x6f\x05\x65\x5f\x6e\x75\x6d\x62\x65\x72\x73\x2c\x6a\x6f\x75\x72\x6e\x61\x6c\x5f\x74\x72\x61\x6e\x73\x61\x63\x74\x69\x6f\x6e\x5f\x6e\x61\x6d"...) = 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 [pid 5782] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [ 184.358905][ T5782] bcachefs (loop0): check_allocations... done [ 184.439721][ T5782] bcachefs (loop0): going read-write [ 184.456964][ T5782] bcachefs (loop0): done starting filesystem [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=5 /* 0.05 s */, si_stime=76 /* 0.76 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 5795 attached [pid 5795] set_robust_list(0x555588f75660, 24) = 0 [pid 5781] <... clone resumed>, child_tidptr=0x555588f75650) = 5795 [pid 5795] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5795] setpgid(0, 0) = 0 [pid 5795] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5795] write(3, "1000", 4) = 4 executing program [pid 5795] close(3) = 0 [pid 5795] write(1, "executing program\n", 18) = 18 [pid 5795] memfd_create("syzkaller", 0) = 3 [pid 5795] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff88ba00000 [ 184.825283][ T5792] ===================================================== [ 184.832542][ T5792] BUG: KMSAN: uninit-value in bch2_inode_v3_validate+0x481/0x5a0 [ 184.840693][ T5792] bch2_inode_v3_validate+0x481/0x5a0 [ 184.846357][ T5792] bch2_bkey_val_validate+0x2b5/0x440 [ 184.851943][ T5792] validate_bset_keys+0x1531/0x2080 [ 184.857458][ T5792] validate_bset_for_write+0x142/0x290 [ 184.863140][ T5792] __bch2_btree_node_write+0x53df/0x6830 [ 184.869069][ T5792] bch2_btree_node_write+0xa5/0x2e0 [ 184.874624][ T5792] __btree_node_flush+0x606/0x680 [ 184.879839][ T5792] bch2_btree_node_flush1+0x38/0x60 [ 184.885291][ T5792] journal_flush_pins+0xce6/0x1780 [ 184.890578][ T5792] __bch2_journal_reclaim+0xda8/0x1670 [ 184.896340][ T5792] bch2_journal_reclaim_thread+0x18e/0x760 [ 184.902331][ T5792] kthread+0x3e2/0x540 [ 184.906641][ T5792] ret_from_fork+0x6d/0x90 [ 184.911296][ T5792] ret_from_fork_asm+0x1a/0x30 [ 184.916371][ T5792] [ 184.918795][ T5792] Uninit was stored to memory at: [ 184.924108][ T5792] bch2_sort_keys_keep_unwritten_whiteouts+0x12d5/0x19d0 [ 184.931542][ T5792] __bch2_btree_node_write+0x3ae8/0x6830 [ 184.937567][ T5792] bch2_btree_node_write+0xa5/0x2e0 [ 184.943026][ T5792] __btree_node_flush+0x606/0x680 [ 184.948331][ T5792] bch2_btree_node_flush1+0x38/0x60 [ 184.953743][ T5792] journal_flush_pins+0xce6/0x1780 [ 184.959142][ T5792] __bch2_journal_reclaim+0xda8/0x1670 [ 184.964853][ T5792] bch2_journal_reclaim_thread+0x18e/0x760 [ 184.970849][ T5792] kthread+0x3e2/0x540 [ 184.975186][ T5792] ret_from_fork+0x6d/0x90 [ 184.979784][ T5792] ret_from_fork_asm+0x1a/0x30 [ 184.984914][ T5792] [ 184.987354][ T5792] Uninit was created at: [ 184.991877][ T5792] ___kmalloc_large_node+0x22c/0x370 [ 184.997525][ T5792] __kmalloc_large_node_noprof+0x3f/0x1e0 [ 185.003471][ T5792] __kmalloc_node_noprof+0xc96/0x1250 [ 185.009137][ T5792] __kvmalloc_node_noprof+0xc0/0x2d0 [ 185.014705][ T5792] btree_node_sort+0x78a/0x1d30 [ 185.019765][ T5792] bch2_btree_post_write_cleanup+0x1b0/0xf20 [ 185.026047][ T5792] bch2_btree_node_write+0x21c/0x2e0 [ 185.031629][ T5792] __btree_node_flush+0x606/0x680 [ 185.036953][ T5792] bch2_btree_node_flush0+0x35/0x60 [ 185.042436][ T5792] journal_flush_pins+0xce6/0x1780 [ 185.047802][ T5792] __bch2_journal_reclaim+0xda8/0x1670 [ 185.053440][ T5792] bch2_journal_reclaim_thread+0x18e/0x760 [ 185.059615][ T5792] kthread+0x3e2/0x540 [ 185.063863][ T5792] ret_from_fork+0x6d/0x90 [ 185.068555][ T5792] ret_from_fork_asm+0x1a/0x30 [ 185.073580][ T5792] [ 185.076136][ T5792] CPU: 1 UID: 0 PID: 5792 Comm: bch-reclaim/loo Not tainted 6.13.0-rc4-syzkaller-00078-g059dd502b263 #0 [ 185.087618][ T5792] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 185.097930][ T5792] ===================================================== [ 185.105044][ T5792] Disabling lock debugging due to kernel taint [ 185.111328][ T5792] Kernel panic - not syncing: kmsan.panic set ... [pid 5795] 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 5795] munmap(0x7ff88ba00000, 138412032) = 0 [ 185.117894][ T5792] CPU: 1 UID: 0 PID: 5792 Comm: bch-reclaim/loo Tainted: G B 6.13.0-rc4-syzkaller-00078-g059dd502b263 #0 [ 185.130728][ T5792] Tainted: [B]=BAD_PAGE [ 185.135005][ T5792] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 185.145222][ T5792] Call Trace: [ 185.148624][ T5792] [ 185.151683][ T5792] dump_stack_lvl+0x216/0x2d0 [ 185.156605][ T5792] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 185.162627][ T5792] dump_stack+0x1e/0x24 [ 185.166999][ T5792] panic+0x4e2/0xcf0 [ 185.171109][ T5792] ? kmsan_get_metadata+0x131/0x1c0 [pid 5795] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5795] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5795] ioctl(4, LOOP_CLR_FD) = 0 [pid 5795] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5795] close(4) = 0 [ 185.176517][ T5792] kmsan_report+0x2c7/0x2d0 [ 185.181208][ T5792] ? kmsan_get_metadata+0x13e/0x1c0 [ 185.186663][ T5792] ? kmsan_get_metadata+0x13e/0x1c0 [ 185.192071][ T5792] ? __msan_warning+0x95/0x120 [ 185.197065][ T5792] ? bch2_inode_v3_validate+0x481/0x5a0 [ 185.202873][ T5792] ? bch2_bkey_val_validate+0x2b5/0x440 [ 185.208662][ T5792] ? validate_bset_keys+0x1531/0x2080 [ 185.214262][ T5792] ? validate_bset_for_write+0x142/0x290 [ 185.220115][ T5792] ? __bch2_btree_node_write+0x53df/0x6830 [ 185.226162][ T5792] ? bch2_btree_node_write+0xa5/0x2e0 [ 185.231760][ T5792] ? __btree_node_flush+0x606/0x680 [ 185.237161][ T5792] ? bch2_btree_node_flush1+0x38/0x60 [ 185.242737][ T5792] ? journal_flush_pins+0xce6/0x1780 [ 185.248210][ T5792] ? __bch2_journal_reclaim+0xda8/0x1670 [ 185.254034][ T5792] ? bch2_journal_reclaim_thread+0x18e/0x760 [ 185.260218][ T5792] ? kthread+0x3e2/0x540 [ 185.264654][ T5792] ? ret_from_fork+0x6d/0x90 [ 185.269443][ T5792] ? ret_from_fork_asm+0x1a/0x30 [ 185.274617][ T5792] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 185.280697][ T5792] ? kmsan_get_metadata+0x13e/0x1c0 [ 185.286087][ T5792] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 185.292665][ T5792] ? kmsan_get_metadata+0x13e/0x1c0 [ 185.298499][ T5792] ? kmsan_get_metadata+0x13e/0x1c0 [ 185.303905][ T5792] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 185.309920][ T5792] ? kmsan_get_metadata+0x13e/0x1c0 [ 185.315315][ T5792] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 185.321519][ T5792] ? kmsan_get_metadata+0x13e/0x1c0 [ 185.326925][ T5792] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 185.332939][ T5792] __msan_warning+0x95/0x120 [ 185.337776][ T5792] bch2_inode_v3_validate+0x481/0x5a0 [ 185.343393][ T5792] ? __pfx_bch2_inode_v3_validate+0x10/0x10 [ 185.349524][ T5792] bch2_bkey_val_validate+0x2b5/0x440 [ 185.355158][ T5792] validate_bset_keys+0x1531/0x2080 [ 185.360635][ T5792] validate_bset_for_write+0x142/0x290 [ 185.366334][ T5792] __bch2_btree_node_write+0x53df/0x6830 [ 185.372202][ T5792] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 185.378212][ T5792] ? filter_irq_stacks+0x60/0x1a0 [ 185.383500][ T5792] bch2_btree_node_write+0xa5/0x2e0 [ 185.388952][ T5792] __btree_node_flush+0x606/0x680 [ 185.394188][ T5792] ? __btree_node_flush+0xd3/0x680 [ 185.399530][ T5792] ? __pfx_bch2_btree_node_flush1+0x10/0x10 [ 185.405646][ T5792] bch2_btree_node_flush1+0x38/0x60 [ 185.411041][ T5792] journal_flush_pins+0xce6/0x1780 [ 185.416392][ T5792] __bch2_journal_reclaim+0xda8/0x1670 [ 185.422046][ T5792] ? __try_to_del_timer_sync+0x3d3/0x420 [ 185.427931][ T5792] bch2_journal_reclaim_thread+0x18e/0x760 [ 185.433962][ T5792] kthread+0x3e2/0x540 [ 185.438265][ T5792] ? __pfx_bch2_journal_reclaim_thread+0x10/0x10 [ 185.444813][ T5792] ? __pfx_kthread+0x10/0x10 [ 185.449605][ T5792] ret_from_fork+0x6d/0x90 [ 185.454229][ T5792] ? __pfx_kthread+0x10/0x10 [ 185.459008][ T5792] ret_from_fork_asm+0x1a/0x30 [ 185.464019][ T5792] [ 185.467458][ T5792] Kernel Offset: disabled [ 185.471856][ T5792] Rebooting in 86400 seconds..