./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1577417591 <...> Warning: Permanently added '10.128.0.152' (ED25519) to the list of known hosts. execve("./syz-executor1577417591", ["./syz-executor1577417591"], 0x7fff3c1875e0 /* 10 vars */) = 0 brk(NULL) = 0x55557a03d000 brk(0x55557a03dd00) = 0x55557a03dd00 arch_prctl(ARCH_SET_FS, 0x55557a03d380) = 0 set_tid_address(0x55557a03d650) = 5776 set_robust_list(0x55557a03d660, 24) = 0 rseq(0x55557a03dca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1577417591", 4096) = 28 getrandom("\xde\xab\xd6\x7e\x22\x72\xde\xdf", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557a03dd00 brk(0x55557a05ed00) = 0x55557a05ed00 brk(0x55557a05f000) = 0x55557a05f000 mprotect(0x7f71bd8db000, 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=0x55557a03d650) = 5777 ./strace-static-x86_64: Process 5777 attached [pid 5777] set_robust_list(0x55557a03d660, 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", 4) = 4 [pid 5777] close(3) = 0 executing program [pid 5777] write(1, "executing program\n", 18) = 18 [pid 5777] prlimit64(0, RLIMIT_RTPRIO, NULL, NULL) = 0 [pid 5777] memfd_create("syzkaller", 0) = 3 [pid 5777] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f71b5400000 [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(0x7f71b5400000, 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 [ 213.080245][ T5777] loop0: detected capacity change from 0 to 32768 [ 213.245632][ T5777] 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 [ 213.267960][ T5777] bcachefs (loop0): recovering from clean shutdown, journal seq 10 [ 213.277721][ T5777] bcachefs (loop0): Version upgrade required: [ 213.277721][ T5777] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete [ 213.277721][ T5777] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.13: inode_has_child_snapshots [ 213.277721][ 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 [ 213.353257][ T5777] bcachefs (loop0): dropping and reconstructing all alloc info [ 213.406821][ T5777] bcachefs (loop0): check_topology... done [ 213.413407][ T5777] bcachefs (loop0): accounting_read... done [ 213.420212][ T5777] bcachefs (loop0): alloc_read... done [ 213.426240][ T5777] bcachefs (loop0): stripes_read... done [ 213.432481][ T5777] bcachefs (loop0): snapshots_read... done [pid 5777] mount("/dev/loop0", "./file1", "bcachefs", MS_I_VERSION, "acl,direct_io,norecovery,fsck,journal_flush_disabled,noreTovery,btree_node_mem_ptr_optimization,reco"...) = 0 [pid 5777] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5777] chdir("./file1") = 0 [pid 5777] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5777] ioctl(4, LOOP_CLR_FD) = 0 [pid 5777] close(4) = 0 [ 213.439421][ T5777] bcachefs (loop0): check_allocations... done [ 213.534794][ T5777] bcachefs (loop0): going read-write [ 213.554142][ T5777] bcachefs (loop0): done starting filesystem [pid 5777] mkdir("./bus", 000) = 0 [pid 5777] exit_group(0) = ? [pid 5777] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5777, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=84 /* 0.84 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 5789 attached , child_tidptr=0x55557a03d650) = 5789 [pid 5789] set_robust_list(0x55557a03d660, 24) = 0 [pid 5789] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5789] setpgid(0, 0) = 0 [pid 5789] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5789] write(3, "1000", 4) = 4 [pid 5789] close(3) = 0 executing program [pid 5789] write(1, "executing program\n", 18) = 18 [pid 5789] prlimit64(0, RLIMIT_RTPRIO, NULL, NULL) = 0 [pid 5789] memfd_create("syzkaller", 0) = 3 [pid 5789] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f71b5400000 [ 213.943804][ T5786] ===================================================== [ 213.951432][ T5786] BUG: KMSAN: uninit-value in bch2_inode_v3_validate+0x481/0x5a0 [ 213.959646][ T5786] bch2_inode_v3_validate+0x481/0x5a0 [ 213.965496][ T5786] bch2_bkey_val_validate+0x2b5/0x440 [ 213.971157][ T5786] validate_bset_keys+0x1531/0x2080 [ 213.976714][ T5786] validate_bset_for_write+0x142/0x290 [ 213.982454][ T5786] __bch2_btree_node_write+0x53df/0x6830 [ 213.988464][ T5786] bch2_btree_node_write+0xa5/0x2e0 [ 213.994125][ T5786] __btree_node_flush+0x606/0x680 [ 213.999388][ T5786] bch2_btree_node_flush1+0x38/0x60 [ 214.005127][ T5786] journal_flush_pins+0xce6/0x1780 [ 214.010472][ T5786] __bch2_journal_reclaim+0xda8/0x1670 [ 214.016359][ T5786] bch2_journal_reclaim_thread+0x18e/0x760 [ 214.022501][ T5786] kthread+0x3e2/0x540 [ 214.026875][ T5786] ret_from_fork+0x6d/0x90 [ 214.031525][ T5786] ret_from_fork_asm+0x1a/0x30 [ 214.036642][ T5786] [ 214.039087][ T5786] Uninit was stored to memory at: [ 214.044539][ T5786] bch2_sort_keys_keep_unwritten_whiteouts+0x12d5/0x19d0 [ 214.051892][ T5786] __bch2_btree_node_write+0x3ae8/0x6830 [ 214.057993][ T5786] bch2_btree_node_write+0xa5/0x2e0 [ 214.063643][ T5786] __btree_node_flush+0x606/0x680 [ 214.068994][ T5786] bch2_btree_node_flush1+0x38/0x60 [ 214.074559][ T5786] journal_flush_pins+0xce6/0x1780 [ 214.079927][ T5786] __bch2_journal_reclaim+0xda8/0x1670 [ 214.085738][ T5786] bch2_journal_reclaim_thread+0x18e/0x760 [ 214.091793][ T5786] kthread+0x3e2/0x540 [ 214.096245][ T5786] ret_from_fork+0x6d/0x90 [ 214.100905][ T5786] ret_from_fork_asm+0x1a/0x30 [ 214.106088][ T5786] [ 214.108543][ T5786] Uninit was created at: [ 214.113306][ T5786] ___kmalloc_large_node+0x22c/0x370 [ 214.118877][ T5786] __kmalloc_large_node_noprof+0x3f/0x1e0 [ 214.125124][ T5786] __kmalloc_node_noprof+0xc96/0x1250 [ 214.130782][ T5786] __kvmalloc_node_noprof+0xc0/0x2d0 [ 214.136399][ T5786] btree_node_sort+0x78a/0x1d30 [ 214.141526][ T5786] bch2_btree_post_write_cleanup+0x1b0/0xf20 [ 214.147995][ T5786] bch2_btree_node_write+0x21c/0x2e0 [ 214.153656][ T5786] __btree_node_flush+0x606/0x680 [ 214.159021][ T5786] bch2_btree_node_flush0+0x35/0x60 [ 214.164666][ T5786] journal_flush_pins+0xce6/0x1780 [ 214.170465][ T5786] __bch2_journal_reclaim+0xda8/0x1670 [ 214.176283][ T5786] bch2_journal_reclaim_thread+0x18e/0x760 [ 214.182347][ T5786] kthread+0x3e2/0x540 [ 214.186878][ T5786] ret_from_fork+0x6d/0x90 [ 214.191525][ T5786] ret_from_fork_asm+0x1a/0x30 [ 214.196678][ T5786] [ 214.199175][ T5786] CPU: 0 UID: 0 PID: 5786 Comm: bch-reclaim/loo Not tainted 6.13.0-rc2-syzkaller-00333-ga0e3919a2df2 #0 [ 214.210787][ T5786] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 [ 214.221273][ T5786] ===================================================== [ 214.228592][ T5786] Disabling lock debugging due to kernel taint [ 214.235008][ T5786] Kernel panic - not syncing: kmsan.panic set ... [ 214.241609][ T5786] CPU: 0 UID: 0 PID: 5786 Comm: bch-reclaim/loo Tainted: G B 6.13.0-rc2-syzkaller-00333-ga0e3919a2df2 #0 [ 214.254482][ T5786] Tainted: [B]=BAD_PAGE [ 214.258788][ T5786] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 [ 214.269074][ T5786] Call Trace: [ 214.272601][ T5786] [ 214.275705][ T5786] dump_stack_lvl+0x216/0x2d0 [ 214.280749][ T5786] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 214.286820][ T5786] dump_stack+0x1e/0x24 [ 214.291257][ T5786] panic+0x4e2/0xcf0 [ 214.295409][ T5786] ? kmsan_get_metadata+0x101/0x1c0 [ 214.300876][ T5786] kmsan_report+0x2c7/0x2d0 [ 214.305594][ T5786] ? kmsan_get_metadata+0x13e/0x1c0 [ 214.311030][ T5786] ? kmsan_get_metadata+0x13e/0x1c0 [ 214.316453][ T5786] ? __msan_warning+0x95/0x120 [ 214.321494][ T5786] ? bch2_inode_v3_validate+0x481/0x5a0 [ 214.327314][ T5786] ? bch2_bkey_val_validate+0x2b5/0x440 [ 214.333133][ T5786] ? validate_bset_keys+0x1531/0x2080 [ 214.338777][ T5786] ? validate_bset_for_write+0x142/0x290 [ 214.344695][ T5786] ? __bch2_btree_node_write+0x53df/0x6830 [ 214.350795][ T5786] ? bch2_btree_node_write+0xa5/0x2e0 [ 214.356446][ T5786] ? __btree_node_flush+0x606/0x680 [ 214.361908][ T5786] ? bch2_btree_node_flush1+0x38/0x60 [ 214.367524][ T5786] ? journal_flush_pins+0xce6/0x1780 [ 214.373046][ T5786] ? __bch2_journal_reclaim+0xda8/0x1670 [ 214.378925][ T5786] ? bch2_journal_reclaim_thread+0x18e/0x760 [ 214.385263][ T5786] ? kthread+0x3e2/0x540 [ 214.389739][ T5786] ? ret_from_fork+0x6d/0x90 [ 214.394683][ T5786] ? ret_from_fork_asm+0x1a/0x30 [ 214.399913][ T5786] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 214.405958][ T5786] ? kmsan_get_metadata+0x13e/0x1c0 [ 214.411486][ T5786] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 214.418111][ T5786] ? kmsan_get_metadata+0x13e/0x1c0 [ 214.423798][ T5786] ? kmsan_get_metadata+0x13e/0x1c0 [ 214.429227][ T5786] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 214.435270][ T5786] ? kmsan_get_metadata+0x13e/0x1c0 [ 214.440703][ T5786] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [pid 5789] 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 5789] munmap(0x7f71b5400000, 138412032) = 0 [pid 5789] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5789] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5789] ioctl(4, LOOP_CLR_FD) = 0 [ 214.446768][ T5786] ? kmsan_get_metadata+0x13e/0x1c0 [ 214.452227][ T5786] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 214.458362][ T5786] __msan_warning+0x95/0x120 [ 214.463265][ T5786] bch2_inode_v3_validate+0x481/0x5a0 [ 214.468956][ T5786] ? __pfx_bch2_inode_v3_validate+0x10/0x10 [ 214.475158][ T5786] bch2_bkey_val_validate+0x2b5/0x440 [ 214.480969][ T5786] validate_bset_keys+0x1531/0x2080 [ 214.486525][ T5786] validate_bset_for_write+0x142/0x290 [pid 5789] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5789] close(4) = 0 [ 214.492296][ T5786] __bch2_btree_node_write+0x53df/0x6830 [ 214.498669][ T5786] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 214.504751][ T5786] ? filter_irq_stacks+0x60/0x1a0 [ 214.510111][ T5786] bch2_btree_node_write+0xa5/0x2e0 [ 214.515608][ T5786] __btree_node_flush+0x606/0x680 [ 214.520893][ T5786] ? __btree_node_flush+0xd3/0x680 [ 214.526269][ T5786] ? __pfx_bch2_btree_node_flush1+0x10/0x10 [ 214.532442][ T5786] bch2_btree_node_flush1+0x38/0x60 [ 214.538024][ T5786] journal_flush_pins+0xce6/0x1780 [ 214.543443][ T5786] __bch2_journal_reclaim+0xda8/0x1670 [ 214.549165][ T5786] ? __try_to_del_timer_sync+0x3d3/0x420 [ 214.555117][ T5786] bch2_journal_reclaim_thread+0x18e/0x760 [ 214.561203][ T5786] kthread+0x3e2/0x540 [ 214.565506][ T5786] ? __pfx_bch2_journal_reclaim_thread+0x10/0x10 [ 214.572102][ T5786] ? __pfx_kthread+0x10/0x10 [ 214.576931][ T5786] ret_from_fork+0x6d/0x90 [ 214.581596][ T5786] ? __pfx_kthread+0x10/0x10 [ 214.586415][ T5786] ret_from_fork_asm+0x1a/0x30 [ 214.591478][ T5786] [ 214.594906][ T5786] Kernel Offset: disabled [ 214.599362][ T5786] Rebooting in 86400 seconds..