./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3912522429 <...> Warning: Permanently added '10.128.1.161' (ED25519) to the list of known hosts. execve("./syz-executor3912522429", ["./syz-executor3912522429"], 0x7ffc53e1f5b0 /* 10 vars */) = 0 brk(NULL) = 0x55556d537000 brk(0x55556d537d00) = 0x55556d537d00 arch_prctl(ARCH_SET_FS, 0x55556d537380) = 0 set_tid_address(0x55556d537650) = 5778 set_robust_list(0x55556d537660, 24) = 0 rseq(0x55556d537ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3912522429", 4096) = 28 getrandom("\xd5\x06\x23\x7f\x2d\xcb\x87\x62", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556d537d00 brk(0x55556d558d00) = 0x55556d558d00 brk(0x55556d559000) = 0x55556d559000 mprotect(0x7f7ca821e000, 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=0x55556d537650) = 5779 ./strace-static-x86_64: Process 5779 attached [pid 5779] set_robust_list(0x55556d537660, 24) = 0 [pid 5779] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5779] setpgid(0, 0) = 0 [pid 5779] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5779] write(3, "1000", 4) = 4 [pid 5779] close(3) = 0 [pid 5779] write(1, "executing program\n", 18executing program ) = 18 [pid 5779] memfd_create("syzkaller", 0) = 3 [pid 5779] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7c9fc00000 [pid 5779] 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 5779] munmap(0x7f7c9fc00000, 138412032) = 0 [pid 5779] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5779] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5779] close(3) = 0 [pid 5779] close(4) = 0 [pid 5779] mkdir("./file1", 0777) = 0 [ 186.826775][ T5779] loop0: detected capacity change from 0 to 32768 [ 186.955057][ T5779] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=crc64,norecovery,reconstruct_alloc [ 186.969917][ T5779] bcachefs (loop0): recovering from clean shutdown, journal seq 10 [ 186.979518][ T5779] bcachefs (loop0): Version upgrade required: [ 186.979518][ T5779] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete [ 186.979518][ T5779] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.13: inode_has_child_snapshots [ 186.979518][ T5779] 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 [ 187.054383][ T5779] bcachefs (loop0): dropping and reconstructing all alloc info [ 187.100634][ T5779] bcachefs (loop0): accounting_read... done [ 187.107218][ T5779] bcachefs (loop0): alloc_read... done [ 187.113201][ T5779] bcachefs (loop0): stripes_read... done [ 187.119220][ T5779] bcachefs (loop0): snapshots_read... done [pid 5779] 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 5779] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5779] chdir("./file1") = 0 [pid 5779] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5779] ioctl(4, LOOP_CLR_FD) = 0 [pid 5779] close(4) = 0 [ 187.125659][ T5779] bcachefs (loop0): check_allocations... done [ 187.205182][ T5779] bcachefs (loop0): going read-write [ 187.221963][ T5779] bcachefs (loop0): done starting filesystem [pid 5779] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000) = 4 [pid 5779] exit_group(0) = ? [pid 5779] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5779, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=73 /* 0.73 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, child_tidptr=0x55556d537650) = 5792 ./strace-static-x86_64: Process 5792 attached [pid 5792] set_robust_list(0x55556d537660, 24) = 0 [pid 5792] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5792] setpgid(0, 0) = 0 [pid 5792] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5792] write(3, "1000", 4) = 4 [pid 5792] close(3) = 0 [pid 5792] write(1, "executing program\n", 18executing program ) = 18 [pid 5792] memfd_create("syzkaller", 0) = 3 [pid 5792] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7c9fc00000 [ 187.600879][ T5789] ===================================================== [ 187.608137][ T5789] BUG: KMSAN: uninit-value in bch2_inode_v3_validate+0x481/0x5a0 [ 187.616303][ T5789] bch2_inode_v3_validate+0x481/0x5a0 [ 187.621996][ T5789] bch2_bkey_val_validate+0x2b5/0x440 [ 187.627592][ T5789] validate_bset_keys+0x1531/0x2080 [ 187.633069][ T5789] validate_bset_for_write+0x142/0x290 [ 187.638743][ T5789] __bch2_btree_node_write+0x53df/0x6830 [ 187.644690][ T5789] bch2_btree_node_write+0xa5/0x2e0 [ 187.650190][ T5789] __btree_node_flush+0x606/0x680 [ 187.655399][ T5789] bch2_btree_node_flush1+0x38/0x60 [ 187.660927][ T5789] journal_flush_pins+0xce6/0x1780 [ 187.666225][ T5789] __bch2_journal_reclaim+0xda8/0x1670 [ 187.672016][ T5789] bch2_journal_reclaim_thread+0x18e/0x760 [ 187.678008][ T5789] kthread+0x3e2/0x540 [ 187.682353][ T5789] ret_from_fork+0x6d/0x90 [ 187.686944][ T5789] ret_from_fork_asm+0x1a/0x30 [ 187.691984][ T5789] [ 187.694399][ T5789] Uninit was stored to memory at: [ 187.699715][ T5789] bch2_sort_keys_keep_unwritten_whiteouts+0x12d5/0x19d0 [ 187.707090][ T5789] __bch2_btree_node_write+0x3ae8/0x6830 [ 187.713014][ T5789] bch2_btree_node_write+0xa5/0x2e0 [ 187.718416][ T5789] __btree_node_flush+0x606/0x680 [ 187.723779][ T5789] bch2_btree_node_flush1+0x38/0x60 [ 187.729167][ T5789] journal_flush_pins+0xce6/0x1780 [ 187.734520][ T5789] __bch2_journal_reclaim+0xda8/0x1670 [ 187.740218][ T5789] bch2_journal_reclaim_thread+0x18e/0x760 [ 187.746205][ T5789] kthread+0x3e2/0x540 [ 187.750630][ T5789] ret_from_fork+0x6d/0x90 [ 187.755224][ T5789] ret_from_fork_asm+0x1a/0x30 [ 187.760280][ T5789] [ 187.762693][ T5789] Uninit was created at: [ 187.767191][ T5789] ___kmalloc_large_node+0x22c/0x370 [ 187.772774][ T5789] __kmalloc_large_node_noprof+0x3f/0x1e0 [ 187.778724][ T5789] __kmalloc_node_noprof+0xc96/0x1250 [ 187.784575][ T5789] __kvmalloc_node_noprof+0xc0/0x2d0 [ 187.790135][ T5789] btree_node_sort+0x78a/0x1d30 [ 187.795198][ T5789] bch2_btree_post_write_cleanup+0x1b0/0xf20 [ 187.801546][ T5789] bch2_btree_node_write+0x21c/0x2e0 [ 187.807049][ T5789] __btree_node_flush+0x606/0x680 [ 187.812418][ T5789] bch2_btree_node_flush0+0x35/0x60 [ 187.817807][ T5789] journal_flush_pins+0xce6/0x1780 [ 187.823158][ T5789] __bch2_journal_reclaim+0xda8/0x1670 [ 187.828814][ T5789] bch2_journal_reclaim_thread+0x18e/0x760 [ 187.834900][ T5789] kthread+0x3e2/0x540 [ 187.839134][ T5789] ret_from_fork+0x6d/0x90 [ 187.843799][ T5789] ret_from_fork_asm+0x1a/0x30 [ 187.848773][ T5789] [ 187.851309][ T5789] CPU: 0 UID: 0 PID: 5789 Comm: bch-reclaim/loo Not tainted 6.13.0-rc4-syzkaller-00071-gfd0584d220fe #0 [ 187.862683][ T5789] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 187.873045][ T5789] ===================================================== [ 187.880174][ T5789] Disabling lock debugging due to kernel taint [ 187.886465][ T5789] Kernel panic - not syncing: kmsan.panic set ... [ 187.893028][ T5789] CPU: 0 UID: 0 PID: 5789 Comm: bch-reclaim/loo Tainted: G B 6.13.0-rc4-syzkaller-00071-gfd0584d220fe #0 [ 187.905839][ T5789] Tainted: [B]=BAD_PAGE [ 187.910109][ T5789] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 187.920318][ T5789] Call Trace: [ 187.923717][ T5789] [ 187.926756][ T5789] dump_stack_lvl+0x216/0x2d0 [ 187.931648][ T5789] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 187.937643][ T5789] dump_stack+0x1e/0x24 [ 187.942004][ T5789] panic+0x4e2/0xcf0 [ 187.946098][ T5789] ? kmsan_get_metadata+0x131/0x1c0 [ 187.951497][ T5789] kmsan_report+0x2c7/0x2d0 [ 187.956164][ T5789] ? kmsan_get_metadata+0x13e/0x1c0 [ 187.961555][ T5789] ? kmsan_get_metadata+0x13e/0x1c0 [ 187.966936][ T5789] ? __msan_warning+0x95/0x120 [ 187.971915][ T5789] ? bch2_inode_v3_validate+0x481/0x5a0 [ 187.977672][ T5789] ? bch2_bkey_val_validate+0x2b5/0x440 [ 187.983441][ T5789] ? validate_bset_keys+0x1531/0x2080 [ 187.989036][ T5789] ? validate_bset_for_write+0x142/0x290 [ 187.994891][ T5789] ? __bch2_btree_node_write+0x53df/0x6830 [ 188.000923][ T5789] ? bch2_btree_node_write+0xa5/0x2e0 [ 188.006514][ T5789] ? __btree_node_flush+0x606/0x680 [ 188.011901][ T5789] ? bch2_btree_node_flush1+0x38/0x60 [ 188.017469][ T5789] ? journal_flush_pins+0xce6/0x1780 [ 188.022940][ T5789] ? __bch2_journal_reclaim+0xda8/0x1670 [ 188.028756][ T5789] ? bch2_journal_reclaim_thread+0x18e/0x760 [ 188.034931][ T5789] ? kthread+0x3e2/0x540 [ 188.039343][ T5789] ? ret_from_fork+0x6d/0x90 [ 188.044130][ T5789] ? ret_from_fork_asm+0x1a/0x30 [ 188.049285][ T5789] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 188.055278][ T5789] ? kmsan_get_metadata+0x13e/0x1c0 [ 188.060656][ T5789] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 188.067227][ T5789] ? kmsan_get_metadata+0x13e/0x1c0 [ 188.072601][ T5789] ? kmsan_get_metadata+0x13e/0x1c0 [ 188.077976][ T5789] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 188.083970][ T5789] ? kmsan_get_metadata+0x13e/0x1c0 [ 188.089342][ T5789] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 188.095345][ T5789] ? kmsan_get_metadata+0x13e/0x1c0 [ 188.100733][ T5789] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 188.106738][ T5789] __msan_warning+0x95/0x120 [ 188.111563][ T5789] bch2_inode_v3_validate+0x481/0x5a0 [ 188.117171][ T5789] ? __pfx_bch2_inode_v3_validate+0x10/0x10 [ 188.123290][ T5789] bch2_bkey_val_validate+0x2b5/0x440 [ 188.128896][ T5789] validate_bset_keys+0x1531/0x2080 [ 188.134364][ T5789] validate_bset_for_write+0x142/0x290 [ 188.140056][ T5789] __bch2_btree_node_write+0x53df/0x6830 [ 188.145927][ T5789] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 188.151930][ T5789] ? filter_irq_stacks+0x60/0x1a0 [ 188.157216][ T5789] bch2_btree_node_write+0xa5/0x2e0 [ 188.162638][ T5789] __btree_node_flush+0x606/0x680 [ 188.167857][ T5789] ? __btree_node_flush+0xd3/0x680 [ 188.173170][ T5789] ? __pfx_bch2_btree_node_flush1+0x10/0x10 [ 188.179266][ T5789] bch2_btree_node_flush1+0x38/0x60 [ 188.184665][ T5789] journal_flush_pins+0xce6/0x1780 [ 188.190007][ T5789] __bch2_journal_reclaim+0xda8/0x1670 [ 188.195660][ T5789] ? __try_to_del_timer_sync+0x3d3/0x420 [ 188.201546][ T5789] bch2_journal_reclaim_thread+0x18e/0x760 [ 188.207578][ T5789] kthread+0x3e2/0x540 [ 188.211831][ T5789] ? __pfx_bch2_journal_reclaim_thread+0x10/0x10 [ 188.218361][ T5789] ? __pfx_kthread+0x10/0x10 [ 188.223130][ T5789] ret_from_fork+0x6d/0x90 [ 188.227738][ T5789] ? __pfx_kthread+0x10/0x10 [ 188.232523][ T5789] ret_from_fork_asm+0x1a/0x30 [ 188.237530][ T5789] [ 188.240836][ T5789] Kernel Offset: disabled [ 188.245230][ T5789] Rebooting in 86400 seconds..