./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2869464029 <...> Warning: Permanently added '10.128.0.15' (ED25519) to the list of known hosts. execve("./syz-executor2869464029", ["./syz-executor2869464029"], 0x7ffe11fb24e0 /* 10 vars */) = 0 brk(NULL) = 0x55556c94d000 brk(0x55556c94dd00) = 0x55556c94dd00 arch_prctl(ARCH_SET_FS, 0x55556c94d380) = 0 set_tid_address(0x55556c94d650) = 5780 set_robust_list(0x55556c94d660, 24) = 0 rseq(0x55556c94dca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2869464029", 4096) = 28 getrandom("\x72\x82\xdf\x64\x94\xa6\x1e\x33", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556c94dd00 brk(0x55556c96ed00) = 0x55556c96ed00 brk(0x55556c96f000) = 0x55556c96f000 mprotect(0x7fec25f03000, 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 5781 attached , child_tidptr=0x55556c94d650) = 5781 [pid 5781] set_robust_list(0x55556c94d660, 24) = 0 [pid 5781] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5781] setpgid(0, 0) = 0 [pid 5781] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5781] write(3, "1000", 4) = 4 [pid 5781] close(3) = 0 executing program [pid 5781] write(1, "executing program\n", 18) = 18 [pid 5781] memfd_create("syzkaller", 0) = 3 [pid 5781] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fec1da00000 [pid 5781] 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 5781] munmap(0x7fec1da00000, 138412032) = 0 [pid 5781] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5781] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5781] close(3) = 0 [pid 5781] close(4) = 0 [pid 5781] mkdir("./file1", 0777) = 0 [ 176.966177][ T5781] loop0: detected capacity change from 0 to 32768 [ 177.091208][ T5781] 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 [ 177.112896][ T5781] bcachefs (loop0): recovering from clean shutdown, journal seq 10 [ 177.122395][ T5781] bcachefs (loop0): Version upgrade required: [ 177.122395][ T5781] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete [ 177.122395][ T5781] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.13: inode_has_child_snapshots [ 177.122395][ T5781] 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 [ 177.197094][ T5781] bcachefs (loop0): dropping and reconstructing all alloc info [ 177.243971][ T5781] bcachefs (loop0): check_topology... done [ 177.250062][ T5781] bcachefs (loop0): accounting_read... done [ 177.256818][ T5781] bcachefs (loop0): alloc_read... done [ 177.262658][ T5781] bcachefs (loop0): stripes_read... done [ 177.268663][ T5781] bcachefs (loop0): snapshots_read... done [pid 5781] 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 5781] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5781] chdir("./file1") = 0 [pid 5781] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5781] ioctl(4, LOOP_CLR_FD) = 0 [pid 5781] close(4) = 0 [pid 5781] mkdir("\x13\x13\x77\xc5\xfc\x35\xd4\x14\x54\xd5\xd4\x1d\x29\xad\x1a\x60\x29\x59\x81\x46\xe6\xbe\x16\x6e\x41\xad\x0d\xbd\x40\x54\x03\x3c\x9f\x33\xbb\xda\x82\x24\xa2\xf3\xd7\x72\xe7\x63\x6e\x48\xb3\x3c\xbf\x70\x83\x72\xe8\xf1\xb9\x93\x3e\xc5\x12\x77\x43\xbe\x22\x06\x20\x9e\xf0\x2d\xf9\xcb\xf2\xf6\xe8\x80\xd3\x38\x2f", 0777) = 0 [pid 5781] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [ 177.275284][ T5781] bcachefs (loop0): check_allocations... done [ 177.353318][ T5781] bcachefs (loop0): going read-write [ 177.370242][ T5781] bcachefs (loop0): done starting filesystem [pid 5781] +++ killed by SIGSEGV +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5781, si_uid=0, si_status=SIGSEGV, si_utime=8 /* 0.08 s */, si_stime=72 /* 0.72 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./strace-static-x86_64: Process 5793 attached , child_tidptr=0x55556c94d650) = 5793 [pid 5793] set_robust_list(0x55556c94d660, 24) = 0 [pid 5793] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5793] setpgid(0, 0) = 0 [pid 5793] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5793] write(3, "1000", 4executing program ) = 4 [pid 5793] close(3) = 0 [pid 5793] write(1, "executing program\n", 18) = 18 [pid 5793] memfd_create("syzkaller", 0) = 3 [pid 5793] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fec1da00000 [ 177.744634][ T5790] ===================================================== [ 177.751975][ T5790] BUG: KMSAN: uninit-value in bch2_inode_v3_validate+0x481/0x5a0 [ 177.760081][ T5790] bch2_inode_v3_validate+0x481/0x5a0 [ 177.765737][ T5790] bch2_bkey_val_validate+0x2b5/0x440 [ 177.771319][ T5790] validate_bset_keys+0x1531/0x2080 [ 177.776824][ T5790] validate_bset_for_write+0x142/0x290 [ 177.782502][ T5790] __bch2_btree_node_write+0x53df/0x6830 [ 177.788443][ T5790] bch2_btree_node_write+0xa5/0x2e0 [ 177.793910][ T5790] __btree_node_flush+0x606/0x680 [ 177.799119][ T5790] bch2_btree_node_flush1+0x38/0x60 [ 177.804624][ T5790] journal_flush_pins+0xce6/0x1780 [ 177.809919][ T5790] __bch2_journal_reclaim+0xda8/0x1670 [ 177.815614][ T5790] bch2_journal_reclaim_thread+0x18e/0x760 [ 177.821616][ T5790] kthread+0x3e2/0x540 [ 177.825936][ T5790] ret_from_fork+0x6d/0x90 [ 177.830539][ T5790] ret_from_fork_asm+0x1a/0x30 [ 177.835589][ T5790] [ 177.838005][ T5790] Uninit was stored to memory at: [ 177.843310][ T5790] bch2_sort_keys_keep_unwritten_whiteouts+0x12d5/0x19d0 [ 177.850666][ T5790] __bch2_btree_node_write+0x3ae8/0x6830 [ 177.856604][ T5790] bch2_btree_node_write+0xa5/0x2e0 [ 177.862011][ T5790] __btree_node_flush+0x606/0x680 [ 177.867360][ T5790] bch2_btree_node_flush1+0x38/0x60 [ 177.872753][ T5790] journal_flush_pins+0xce6/0x1780 [ 177.878122][ T5790] __bch2_journal_reclaim+0xda8/0x1670 [ 177.883830][ T5790] bch2_journal_reclaim_thread+0x18e/0x760 [ 177.889832][ T5790] kthread+0x3e2/0x540 [ 177.894131][ T5790] ret_from_fork+0x6d/0x90 [ 177.898743][ T5790] ret_from_fork_asm+0x1a/0x30 [ 177.903724][ T5790] [ 177.906241][ T5790] Uninit was created at: [ 177.910752][ T5790] ___kmalloc_large_node+0x22c/0x370 [ 177.916303][ T5790] __kmalloc_large_node_noprof+0x3f/0x1e0 [ 177.922243][ T5790] __kmalloc_node_noprof+0xc96/0x1250 [ 177.928109][ T5790] __kvmalloc_node_noprof+0xc0/0x2d0 [ 177.933578][ T5790] btree_node_sort+0x78a/0x1d30 [ 177.940291][ T5790] bch2_btree_post_write_cleanup+0x1b0/0xf20 [ 177.946564][ T5790] bch2_btree_node_write+0x21c/0x2e0 [ 177.952063][ T5790] __btree_node_flush+0x606/0x680 [ 177.957412][ T5790] bch2_btree_node_flush0+0x35/0x60 [ 177.962799][ T5790] journal_flush_pins+0xce6/0x1780 [ 177.968163][ T5790] __bch2_journal_reclaim+0xda8/0x1670 [ 177.973879][ T5790] bch2_journal_reclaim_thread+0x18e/0x760 [ 177.979872][ T5790] kthread+0x3e2/0x540 [ 177.984168][ T5790] ret_from_fork+0x6d/0x90 [ 177.988766][ T5790] ret_from_fork_asm+0x1a/0x30 [ 177.993856][ T5790] [ 177.996302][ T5790] CPU: 0 UID: 0 PID: 5790 Comm: bch-reclaim/loo Not tainted 6.13.0-rc2-syzkaller-00292-ga446e965a188 #0 [ 178.007675][ T5790] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 [ 178.018098][ T5790] ===================================================== [ 178.025207][ T5790] Disabling lock debugging due to kernel taint [ 178.031476][ T5790] Kernel panic - not syncing: kmsan.panic set ... [ 178.038032][ T5790] CPU: 0 UID: 0 PID: 5790 Comm: bch-reclaim/loo Tainted: G B 6.13.0-rc2-syzkaller-00292-ga446e965a188 #0 [ 178.050842][ T5790] Tainted: [B]=BAD_PAGE [ 178.055105][ T5790] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 [ 178.065314][ T5790] Call Trace: [ 178.068717][ T5790] [ 178.071758][ T5790] dump_stack_lvl+0x216/0x2d0 [ 178.076649][ T5790] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 178.082659][ T5790] dump_stack+0x1e/0x24 [ 178.087020][ T5790] panic+0x4e2/0xcf0 [ 178.091109][ T5790] ? kmsan_get_metadata+0x101/0x1c0 [ 178.096509][ T5790] kmsan_report+0x2c7/0x2d0 [ 178.101195][ T5790] ? kmsan_get_metadata+0x13e/0x1c0 [ 178.106581][ T5790] ? kmsan_get_metadata+0x13e/0x1c0 [ 178.111964][ T5790] ? __msan_warning+0x95/0x120 [ 178.116943][ T5790] ? bch2_inode_v3_validate+0x481/0x5a0 [ 178.122704][ T5790] ? bch2_bkey_val_validate+0x2b5/0x440 [ 178.128472][ T5790] ? validate_bset_keys+0x1531/0x2080 [ 178.134070][ T5790] ? validate_bset_for_write+0x142/0x290 [ 178.139929][ T5790] ? __bch2_btree_node_write+0x53df/0x6830 [ 178.145958][ T5790] ? bch2_btree_node_write+0xa5/0x2e0 [ 178.151544][ T5790] ? __btree_node_flush+0x606/0x680 [ 178.156946][ T5790] ? bch2_btree_node_flush1+0x38/0x60 [ 178.162515][ T5790] ? journal_flush_pins+0xce6/0x1780 [ 178.167986][ T5790] ? __bch2_journal_reclaim+0xda8/0x1670 [ 178.173805][ T5790] ? bch2_journal_reclaim_thread+0x18e/0x760 [ 178.179980][ T5790] ? kthread+0x3e2/0x540 [ 178.184401][ T5790] ? ret_from_fork+0x6d/0x90 [ 178.189174][ T5790] ? ret_from_fork_asm+0x1a/0x30 [ 178.194332][ T5790] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 178.200327][ T5790] ? kmsan_get_metadata+0x13e/0x1c0 [ 178.205713][ T5790] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 178.212289][ T5790] ? kmsan_get_metadata+0x13e/0x1c0 [ 178.217681][ T5790] ? kmsan_get_metadata+0x13e/0x1c0 [ 178.223063][ T5790] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 178.229066][ T5790] ? kmsan_get_metadata+0x13e/0x1c0 [ 178.234444][ T5790] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 178.240493][ T5790] ? kmsan_get_metadata+0x13e/0x1c0 [ 178.245881][ T5790] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 178.251877][ T5790] __msan_warning+0x95/0x120 [ 178.256683][ T5790] bch2_inode_v3_validate+0x481/0x5a0 [ 178.262284][ T5790] ? __pfx_bch2_inode_v3_validate+0x10/0x10 [ 178.268416][ T5790] bch2_bkey_val_validate+0x2b5/0x440 [ 178.274034][ T5790] validate_bset_keys+0x1531/0x2080 [ 178.279507][ T5790] validate_bset_for_write+0x142/0x290 [ 178.285201][ T5790] __bch2_btree_node_write+0x53df/0x6830 [ 178.291067][ T5790] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 178.297070][ T5790] ? filter_irq_stacks+0x60/0x1a0 [ 178.302350][ T5790] bch2_btree_node_write+0xa5/0x2e0 [ 178.307779][ T5790] __btree_node_flush+0x606/0x680 [ 178.313000][ T5790] ? __btree_node_flush+0xd3/0x680 [ 178.318315][ T5790] ? __pfx_bch2_btree_node_flush1+0x10/0x10 [ 178.324427][ T5790] bch2_btree_node_flush1+0x38/0x60 [ 178.329828][ T5790] journal_flush_pins+0xce6/0x1780 [ 178.335170][ T5790] __bch2_journal_reclaim+0xda8/0x1670 [ 178.340858][ T5790] ? __try_to_del_timer_sync+0x3d3/0x420 [ 178.346739][ T5790] bch2_journal_reclaim_thread+0x18e/0x760 [ 178.352765][ T5790] kthread+0x3e2/0x540 [ 178.357011][ T5790] ? __pfx_bch2_journal_reclaim_thread+0x10/0x10 [ 178.363551][ T5790] ? __pfx_kthread+0x10/0x10 [ 178.368323][ T5790] ret_from_fork+0x6d/0x90 [ 178.372934][ T5790] ? __pfx_kthread+0x10/0x10 [ 178.377704][ T5790] ret_from_fork_asm+0x1a/0x30 [ 178.382698][ T5790] [ 178.386102][ T5790] Kernel Offset: disabled [ 178.390491][ T5790] Rebooting in 86400 seconds..