./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2448240697 <...> Warning: Permanently added '10.128.0.72' (ED25519) to the list of known hosts. execve("./syz-executor2448240697", ["./syz-executor2448240697"], 0x7ffdee0e7610 /* 10 vars */) = 0 brk(NULL) = 0x555582c34000 brk(0x555582c34d00) = 0x555582c34d00 arch_prctl(ARCH_SET_FS, 0x555582c34380) = 0 set_tid_address(0x555582c34650) = 5774 set_robust_list(0x555582c34660, 24) = 0 rseq(0x555582c34ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2448240697", 4096) = 28 getrandom("\xe7\x51\x42\x43\xb9\x91\x06\x8e", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555582c34d00 brk(0x555582c55d00) = 0x555582c55d00 brk(0x555582c56000) = 0x555582c56000 mprotect(0x7f14829ff000, 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=0x555582c34650) = 5775 ./strace-static-x86_64: Process 5775 attached [pid 5775] set_robust_list(0x555582c34660, 24) = 0 [pid 5775] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5775] setpgid(0, 0) = 0 [pid 5775] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5775] write(3, "1000", 4) = 4 [pid 5775] close(3) = 0 executing program [pid 5775] write(1, "executing program\n", 18) = 18 [pid 5775] memfd_create("syzkaller", 0) = 3 [pid 5775] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f147a400000 [pid 5775] 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 5775] munmap(0x7f147a400000, 138412032) = 0 [pid 5775] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5775] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5775] close(3) = 0 [pid 5775] close(4) = 0 [pid 5775] mkdir("./file1", 0777) = 0 [ 217.906470][ T5775] loop0: detected capacity change from 0 to 32768 [ 218.059453][ T5775] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=crc64,norecovery,reconstruct_alloc [ 218.074501][ T5775] bcachefs (loop0): recovering from clean shutdown, journal seq 10 [ 218.084477][ T5775] bcachefs (loop0): Version upgrade required: [ 218.084477][ T5775] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete [ 218.084477][ T5775] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.13: inode_has_child_snapshots [ 218.084477][ T5775] 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 [ 218.160407][ T5775] bcachefs (loop0): dropping and reconstructing all alloc info [ 218.214789][ T5775] bcachefs (loop0): accounting_read... done [ 218.222282][ T5775] bcachefs (loop0): alloc_read... done [ 218.228538][ T5775] bcachefs (loop0): stripes_read... done [ 218.234752][ T5775] bcachefs (loop0): snapshots_read... done [pid 5775] 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 5775] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5775] chdir("./file1") = 0 [pid 5775] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5775] ioctl(4, LOOP_CLR_FD) = 0 [pid 5775] close(4) = 0 [ 218.241520][ T5775] bcachefs (loop0): check_allocations... done [ 218.339820][ T5775] bcachefs (loop0): going read-write [ 218.359589][ T5775] bcachefs (loop0): done starting filesystem [pid 5775] unlinkat(AT_FDCWD, "./file1", 0) = 0 [pid 5775] exit_group(0) = ? [pid 5775] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5775, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=86 /* 0.86 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 5787 attached , child_tidptr=0x555582c34650) = 5787 [pid 5787] set_robust_list(0x555582c34660, 24) = 0 [pid 5787] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5787] setpgid(0, 0) = 0 [pid 5787] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5787] write(3, "1000", 4) = 4 [pid 5787] close(3) = 0 executing program [pid 5787] write(1, "executing program\n", 18) = 18 [pid 5787] memfd_create("syzkaller", 0) = 3 [pid 5787] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f147a400000 [pid 5787] 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 5787] munmap(0x7f147a400000, 138412032) = 0 [pid 5787] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5787] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5787] ioctl(4, LOOP_CLR_FD) = 0 [pid 5787] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5787] close(4) = 0 [ 219.181330][ T5784] ===================================================== [ 219.188752][ T5784] BUG: KMSAN: uninit-value in bch2_inode_v3_validate+0x481/0x5a0 [ 219.196921][ T5784] bch2_inode_v3_validate+0x481/0x5a0 [ 219.202679][ T5784] bch2_bkey_val_validate+0x2b5/0x440 [ 219.208327][ T5784] validate_bset_keys+0x1531/0x2080 [ 219.214699][ T5784] validate_bset_for_write+0x142/0x290 [ 219.220538][ T5784] __bch2_btree_node_write+0x53df/0x6830 [ 219.226483][ T5784] bch2_btree_node_write+0xa5/0x2e0 [ 219.232120][ T5784] __btree_node_flush+0x606/0x680 [ 219.237376][ T5784] bch2_btree_node_flush1+0x38/0x60 [ 219.242980][ T5784] journal_flush_pins+0xce6/0x1780 [ 219.248315][ T5784] __bch2_journal_reclaim+0xda8/0x1670 [ 219.254120][ T5784] bch2_journal_reclaim_thread+0x18e/0x760 [ 219.260163][ T5784] kthread+0x3e2/0x540 [ 219.264552][ T5784] ret_from_fork+0x6d/0x90 [ 219.269206][ T5784] ret_from_fork_asm+0x1a/0x30 [ 219.274324][ T5784] [ 219.276767][ T5784] Uninit was stored to memory at: [ 219.282277][ T5784] bch2_sort_keys_keep_unwritten_whiteouts+0x12d5/0x19d0 [ 219.289620][ T5784] __bch2_btree_node_write+0x3ae8/0x6830 [ 219.295757][ T5784] bch2_btree_node_write+0xa5/0x2e0 [ 219.301399][ T5784] __btree_node_flush+0x606/0x680 [ 219.306672][ T5784] bch2_btree_node_flush1+0x38/0x60 [ 219.312194][ T5784] journal_flush_pins+0xce6/0x1780 [ 219.317533][ T5784] __bch2_journal_reclaim+0xda8/0x1670 [ 219.323334][ T5784] bch2_journal_reclaim_thread+0x18e/0x760 [ 219.329381][ T5784] kthread+0x3e2/0x540 [ 219.333766][ T5784] ret_from_fork+0x6d/0x90 [ 219.338411][ T5784] ret_from_fork_asm+0x1a/0x30 [ 219.343553][ T5784] [ 219.346015][ T5784] Uninit was created at: [ 219.350674][ T5784] ___kmalloc_large_node+0x22c/0x370 [ 219.356218][ T5784] __kmalloc_large_node_noprof+0x3f/0x1e0 [ 219.362401][ T5784] __kmalloc_node_noprof+0xc96/0x1250 [ 219.368044][ T5784] __kvmalloc_node_noprof+0xc0/0x2d0 [ 219.373663][ T5784] btree_node_sort+0x78a/0x1d30 [ 219.378786][ T5784] bch2_btree_post_write_cleanup+0x1b0/0xf20 [ 219.385198][ T5784] bch2_btree_node_write+0x21c/0x2e0 [ 219.390840][ T5784] __btree_node_flush+0x606/0x680 [ 219.396183][ T5784] bch2_btree_node_flush0+0x35/0x60 [ 219.401831][ T5784] journal_flush_pins+0xce6/0x1780 [ 219.407177][ T5784] __bch2_journal_reclaim+0xda8/0x1670 [ 219.413080][ T5784] bch2_journal_reclaim_thread+0x18e/0x760 [ 219.419131][ T5784] kthread+0x3e2/0x540 [ 219.423785][ T5784] ret_from_fork+0x6d/0x90 [ 219.428443][ T5784] ret_from_fork_asm+0x1a/0x30 [ 219.433664][ T5784] [ 219.436157][ T5784] CPU: 0 UID: 0 PID: 5784 Comm: bch-reclaim/loo Not tainted 6.13.0-rc4-syzkaller-00110-g4099a71718b0 #0 [ 219.447667][ T5784] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 219.458291][ T5784] ===================================================== [ 219.465499][ T5784] Disabling lock debugging due to kernel taint [ 219.471936][ T5784] Kernel panic - not syncing: kmsan.panic set ... [ 219.478534][ T5784] CPU: 0 UID: 0 PID: 5784 Comm: bch-reclaim/loo Tainted: G B 6.13.0-rc4-syzkaller-00110-g4099a71718b0 #0 [ 219.491432][ T5784] Tainted: [B]=BAD_PAGE [ 219.495739][ T5784] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 219.506092][ T5784] Call Trace: [ 219.509532][ T5784] [ 219.512775][ T5784] dump_stack_lvl+0x216/0x2d0 [ 219.517741][ T5784] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 219.523809][ T5784] dump_stack+0x1e/0x24 [ 219.528225][ T5784] panic+0x4e2/0xcf0 [pid 5787] close(3) = 0 [pid 5787] unlinkat(AT_FDCWD, "./file1", 0) = -1 EISDIR (Is a directory) [ 219.532394][ T5784] ? kmsan_get_metadata+0x111/0x1c0 [ 219.537843][ T5784] kmsan_report+0x2c7/0x2d0 [ 219.542562][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 219.548023][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 219.553450][ T5784] ? __msan_warning+0x95/0x120 [ 219.558485][ T5784] ? bch2_inode_v3_validate+0x481/0x5a0 [ 219.564311][ T5784] ? bch2_bkey_val_validate+0x2b5/0x440 [ 219.570191][ T5784] ? validate_bset_keys+0x1531/0x2080 [ 219.575845][ T5784] ? validate_bset_for_write+0x142/0x290 [pid 5787] exit_group(0) = ? [pid 5787] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5787, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=103 /* 1.03 s */} --- [ 219.581774][ T5784] ? __bch2_btree_node_write+0x53df/0x6830 [ 219.587879][ T5784] ? bch2_btree_node_write+0xa5/0x2e0 [ 219.593536][ T5784] ? __btree_node_flush+0x606/0x680 [ 219.598994][ T5784] ? bch2_btree_node_flush1+0x38/0x60 [ 219.604620][ T5784] ? journal_flush_pins+0xce6/0x1780 [ 219.610169][ T5784] ? __bch2_journal_reclaim+0xda8/0x1670 [ 219.616046][ T5784] ? bch2_journal_reclaim_thread+0x18e/0x760 [ 219.622250][ T5784] ? kthread+0x3e2/0x540 [ 219.626683][ T5784] ? ret_from_fork+0x6d/0x90 [ 219.631479][ T5784] ? ret_from_fork_asm+0x1a/0x30 [ 219.636663][ T5784] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 219.642690][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 219.648081][ T5784] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 219.654667][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 219.660062][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 219.665454][ T5784] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 219.671461][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 219.676850][ T5784] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 219.682862][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 219.688255][ T5784] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 219.694273][ T5784] __msan_warning+0x95/0x120 [ 219.699104][ T5784] bch2_inode_v3_validate+0x481/0x5a0 [ 219.704961][ T5784] ? __pfx_bch2_inode_v3_validate+0x10/0x10 [ 219.711107][ T5784] bch2_bkey_val_validate+0x2b5/0x440 [ 219.716758][ T5784] validate_bset_keys+0x1531/0x2080 [ 219.722259][ T5784] validate_bset_for_write+0x142/0x290 [ 219.727981][ T5784] __bch2_btree_node_write+0x53df/0x6830 [ 219.733905][ T5784] ? __update_load_avg_se+0x179/0x11a0 [ 219.739618][ T5784] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 219.745686][ T5784] bch2_btree_node_write+0xa5/0x2e0 [ 219.751137][ T5784] __btree_node_flush+0x606/0x680 [ 219.756371][ T5784] ? __btree_node_flush+0xd3/0x680 [ 219.761724][ T5784] ? __pfx_bch2_btree_node_flush1+0x10/0x10 [ 219.767887][ T5784] bch2_btree_node_flush1+0x38/0x60 [ 219.773331][ T5784] journal_flush_pins+0xce6/0x1780 [ 219.778725][ T5784] __bch2_journal_reclaim+0xda8/0x1670 [ 219.784415][ T5784] ? __try_to_del_timer_sync+0x3d3/0x420 [ 219.790334][ T5784] bch2_journal_reclaim_thread+0x18e/0x760 [ 219.796393][ T5784] kthread+0x3e2/0x540 [ 219.800671][ T5784] ? __pfx_bch2_journal_reclaim_thread+0x10/0x10 [ 219.807252][ T5784] ? __pfx_kthread+0x10/0x10 [ 219.812045][ T5784] ret_from_fork+0x6d/0x90 [ 219.816667][ T5784] ? __pfx_kthread+0x10/0x10 [ 219.821451][ T5784] ret_from_fork_asm+0x1a/0x30 [ 219.826474][ T5784] [ 219.829803][ T5784] Kernel Offset: disabled [ 219.834223][ T5784] Rebooting in 86400 seconds..