./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor147097114 <...> Warning: Permanently added '10.128.1.132' (ED25519) to the list of known hosts. execve("./syz-executor147097114", ["./syz-executor147097114"], 0x7ffcf9c71d40 /* 10 vars */) = 0 brk(NULL) = 0x55556a5bc000 brk(0x55556a5bcd00) = 0x55556a5bcd00 arch_prctl(ARCH_SET_FS, 0x55556a5bc380) = 0 set_tid_address(0x55556a5bc650) = 5799 set_robust_list(0x55556a5bc660, 24) = 0 rseq(0x55556a5bcca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor147097114", 4096) = 27 getrandom("\x22\xf4\x3d\x40\x0e\x6e\x5e\xee", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556a5bcd00 brk(0x55556a5ddd00) = 0x55556a5ddd00 brk(0x55556a5de000) = 0x55556a5de000 mprotect(0x7f23437e6000, 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 5800 attached , child_tidptr=0x55556a5bc650) = 5800 [pid 5800] set_robust_list(0x55556a5bc660, 24) = 0 [pid 5800] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5800] setpgid(0, 0) = 0 [pid 5800] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5800] write(3, "1000", 4executing program ) = 4 [pid 5800] close(3) = 0 [pid 5800] write(1, "executing program\n", 18) = 18 [pid 5800] memfd_create("syzkaller", 0) = 3 [pid 5800] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f233b200000 [pid 5800] 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 5800] munmap(0x7f233b200000, 138412032) = 0 [pid 5800] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5800] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5800] close(3) = 0 [pid 5800] close(4) = 0 [pid 5800] mkdir("./file1", 0777) = 0 [ 179.633999][ T5800] loop0: detected capacity change from 0 to 32768 [ 179.756427][ T5800] 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 [ 179.778465][ T5800] bcachefs (loop0): recovering from clean shutdown, journal seq 10 [ 179.788046][ T5800] bcachefs (loop0): Version upgrade required: [ 179.788046][ T5800] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete [ 179.788046][ T5800] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.13: inode_has_child_snapshots [ 179.788046][ T5800] 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 [ 179.863908][ T5800] bcachefs (loop0): dropping and reconstructing all alloc info [ 179.919884][ T5800] bcachefs (loop0): check_topology... done [ 179.926144][ T5800] bcachefs (loop0): accounting_read... done [ 179.933039][ T5800] bcachefs (loop0): alloc_read... done [ 179.939123][ T5800] bcachefs (loop0): stripes_read... done [ 179.946378][ T5800] bcachefs (loop0): snapshots_read... done [pid 5800] 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 5800] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5800] chdir("./file1") = 0 [ 179.953899][ T5800] bcachefs (loop0): check_allocations... done [ 180.054367][ T5800] bcachefs (loop0): going read-write [ 180.076204][ T5800] bcachefs (loop0): done starting filesystem [pid 5800] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5800] ioctl(4, LOOP_CLR_FD) = 0 [pid 5800] close(4) = 0 [pid 5800] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 4 [pid 5800] exit_group(0) = ? [pid 5800] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5800, si_uid=0, si_status=0, si_utime=0, si_stime=76 /* 0.76 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=0x55556a5bc650) = 5814 ./strace-static-x86_64: Process 5814 attached executing program [pid 5814] set_robust_list(0x55556a5bc660, 24) = 0 [pid 5814] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5814] setpgid(0, 0) = 0 [pid 5814] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5814] write(3, "1000", 4) = 4 [pid 5814] close(3) = 0 [pid 5814] write(1, "executing program\n", 18) = 18 [pid 5814] memfd_create("syzkaller", 0) = 3 [pid 5814] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f233b200000 [ 180.505523][ T5810] ===================================================== [ 180.512865][ T5810] BUG: KMSAN: uninit-value in bch2_inode_v3_validate+0x481/0x5a0 [ 180.520991][ T5810] bch2_inode_v3_validate+0x481/0x5a0 [ 180.526703][ T5810] bch2_bkey_val_validate+0x2b5/0x440 [ 180.532279][ T5810] validate_bset_keys+0x1531/0x2080 [ 180.537886][ T5810] validate_bset_for_write+0x142/0x290 [ 180.543544][ T5810] __bch2_btree_node_write+0x53df/0x6830 [ 180.549506][ T5810] bch2_btree_node_write+0xa5/0x2e0 [ 180.555013][ T5810] __btree_node_flush+0x606/0x680 [ 180.560259][ T5810] bch2_btree_node_flush1+0x38/0x60 [ 180.565814][ T5810] journal_flush_pins+0xce6/0x1780 [ 180.571150][ T5810] __bch2_journal_reclaim+0xda8/0x1670 [ 180.576976][ T5810] bch2_journal_reclaim_thread+0x18e/0x760 [ 180.583011][ T5810] kthread+0x3e2/0x540 [ 180.587533][ T5810] ret_from_fork+0x6d/0x90 [ 180.592135][ T5810] ret_from_fork_asm+0x1a/0x30 [ 180.597270][ T5810] [ 180.599697][ T5810] Uninit was stored to memory at: [ 180.605124][ T5810] bch2_sort_keys_keep_unwritten_whiteouts+0x12d5/0x19d0 [ 180.612379][ T5810] __bch2_btree_node_write+0x3ae8/0x6830 [ 180.618471][ T5810] bch2_btree_node_write+0xa5/0x2e0 [ 180.623878][ T5810] __btree_node_flush+0x606/0x680 [ 180.629235][ T5810] bch2_btree_node_flush1+0x38/0x60 [ 180.634826][ T5810] journal_flush_pins+0xce6/0x1780 [ 180.640152][ T5810] __bch2_journal_reclaim+0xda8/0x1670 [ 180.646103][ T5810] bch2_journal_reclaim_thread+0x18e/0x760 [ 180.652129][ T5810] kthread+0x3e2/0x540 [ 180.656492][ T5810] ret_from_fork+0x6d/0x90 [ 180.661094][ T5810] ret_from_fork_asm+0x1a/0x30 [ 180.666260][ T5810] [ 180.668684][ T5810] Uninit was created at: [ 180.673179][ T5810] ___kmalloc_large_node+0x22c/0x370 [ 180.678877][ T5810] __kmalloc_large_node_noprof+0x3f/0x1e0 [ 180.684894][ T5810] __kmalloc_node_noprof+0xc96/0x1250 [ 180.690467][ T5810] __kvmalloc_node_noprof+0xc0/0x2d0 [ 180.696138][ T5810] btree_node_sort+0x78a/0x1d30 [ 180.701185][ T5810] bch2_btree_post_write_cleanup+0x1b0/0xf20 [ 180.707512][ T5810] bch2_btree_node_write+0x21c/0x2e0 [ 180.712987][ T5810] __btree_node_flush+0x606/0x680 [ 180.718372][ T5810] bch2_btree_node_flush0+0x35/0x60 [ 180.723799][ T5810] journal_flush_pins+0xce6/0x1780 [ 180.729249][ T5810] __bch2_journal_reclaim+0xda8/0x1670 [ 180.735112][ T5810] bch2_journal_reclaim_thread+0x18e/0x760 [ 180.741268][ T5810] kthread+0x3e2/0x540 [ 180.745602][ T5810] ret_from_fork+0x6d/0x90 [ 180.750197][ T5810] ret_from_fork_asm+0x1a/0x30 [ 180.755300][ T5810] [ 180.757761][ T5810] CPU: 0 UID: 0 PID: 5810 Comm: bch-reclaim/loo Not tainted 6.12.0-syzkaller-09567-g7eef7e306d3c #0 [ 180.768825][ T5810] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 180.779225][ T5810] ===================================================== [ 180.786367][ T5810] Disabling lock debugging due to kernel taint [ 180.792637][ T5810] Kernel panic - not syncing: kmsan.panic set ... [ 180.799201][ T5810] CPU: 0 UID: 0 PID: 5810 Comm: bch-reclaim/loo Tainted: G B 6.12.0-syzkaller-09567-g7eef7e306d3c #0 [ 180.811676][ T5810] Tainted: [B]=BAD_PAGE [ 180.816204][ T5810] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 180.826415][ T5810] Call Trace: [ 180.829816][ T5810] [ 180.832873][ T5810] dump_stack_lvl+0x216/0x2d0 [ 180.837795][ T5810] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 180.843862][ T5810] dump_stack+0x1e/0x30 [ 180.848265][ T5810] panic+0x4e2/0xcf0 [ 180.852385][ T5810] ? kmsan_get_metadata+0x51/0x1c0 [ 180.857754][ T5810] kmsan_report+0x2c7/0x2d0 [ 180.862491][ T5810] ? kmsan_get_metadata+0x13e/0x1c0 [ 180.867926][ T5810] ? kmsan_get_metadata+0x13e/0x1c0 [ 180.873368][ T5810] ? __msan_warning+0x95/0x120 [ 180.878356][ T5810] ? bch2_inode_v3_validate+0x481/0x5a0 [ 180.884094][ T5810] ? bch2_bkey_val_validate+0x2b5/0x440 [ 180.889840][ T5810] ? validate_bset_keys+0x1531/0x2080 [ 180.895415][ T5810] ? validate_bset_for_write+0x142/0x290 [ 180.901256][ T5810] ? __bch2_btree_node_write+0x53df/0x6830 [ 180.907265][ T5810] ? bch2_btree_node_write+0xa5/0x2e0 [ 180.912828][ T5810] ? __btree_node_flush+0x606/0x680 [ 180.918250][ T5810] ? bch2_btree_node_flush1+0x38/0x60 [ 180.923841][ T5810] ? journal_flush_pins+0xce6/0x1780 [ 180.929339][ T5810] ? __bch2_journal_reclaim+0xda8/0x1670 [ 180.935208][ T5810] ? bch2_journal_reclaim_thread+0x18e/0x760 [ 180.941424][ T5810] ? kthread+0x3e2/0x540 [ 180.945828][ T5810] ? ret_from_fork+0x6d/0x90 [ 180.950611][ T5810] ? ret_from_fork_asm+0x1a/0x30 [ 180.955766][ T5810] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 180.961816][ T5810] ? kmsan_get_metadata+0x13e/0x1c0 [ 180.967247][ T5810] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 180.973804][ T5810] ? kmsan_get_metadata+0x13e/0x1c0 [ 180.979235][ T5810] ? kmsan_get_metadata+0x13e/0x1c0 [ 180.984656][ T5810] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 180.990693][ T5810] ? kmsan_get_metadata+0x13e/0x1c0 [ 180.996113][ T5810] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 181.002250][ T5810] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.007682][ T5810] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 181.013720][ T5810] __msan_warning+0x95/0x120 [ 181.018522][ T5810] bch2_inode_v3_validate+0x481/0x5a0 [ 181.024121][ T5810] ? __pfx_bch2_inode_v3_validate+0x10/0x10 [ 181.030221][ T5810] bch2_bkey_val_validate+0x2b5/0x440 [ 181.035817][ T5810] validate_bset_keys+0x1531/0x2080 [ 181.041294][ T5810] validate_bset_for_write+0x142/0x290 [ 181.046982][ T5810] __bch2_btree_node_write+0x53df/0x6830 [ 181.052843][ T5810] ? __kmalloc_noprof+0xcd5/0x1230 [ 181.058190][ T5810] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.063616][ T5810] ? mempool_kmalloc+0x36/0x50 [ 181.068600][ T5810] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 181.075212][ T5810] bch2_btree_node_write+0xa5/0x2e0 [ 181.080617][ T5810] __btree_node_flush+0x606/0x680 [ 181.085870][ T5810] ? __btree_node_flush+0xd3/0x680 [ 181.091217][ T5810] ? __pfx_bch2_btree_node_flush1+0x10/0x10 [ 181.097342][ T5810] bch2_btree_node_flush1+0x38/0x60 [ 181.102770][ T5810] journal_flush_pins+0xce6/0x1780 [ 181.108151][ T5810] __bch2_journal_reclaim+0xda8/0x1670 [ 181.113859][ T5810] ? __try_to_del_timer_sync+0x3d3/0x420 [ 181.119741][ T5810] bch2_journal_reclaim_thread+0x18e/0x760 [ 181.125889][ T5810] kthread+0x3e2/0x540 [ 181.130126][ T5810] ? __pfx_bch2_journal_reclaim_thread+0x10/0x10 [ 181.136683][ T5810] ? __pfx_kthread+0x10/0x10 [ 181.141439][ T5810] ret_from_fork+0x6d/0x90 [ 181.146034][ T5810] ? __pfx_kthread+0x10/0x10 [ 181.150791][ T5810] ret_from_fork_asm+0x1a/0x30 [ 181.155785][ T5810] [ 181.159209][ T5810] Kernel Offset: disabled [ 181.163601][ T5810] Rebooting in 86400 seconds..