./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor632270693 <...> Warning: Permanently added '10.128.0.218' (ED25519) to the list of known hosts. execve("./syz-executor632270693", ["./syz-executor632270693"], 0x7ffd7471a6f0 /* 10 vars */) = 0 brk(NULL) = 0x55555be4a000 brk(0x55555be4ad00) = 0x55555be4ad00 arch_prctl(ARCH_SET_FS, 0x55555be4a380) = 0 set_tid_address(0x55555be4a650) = 5780 set_robust_list(0x55555be4a660, 24) = 0 rseq(0x55555be4aca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor632270693", 4096) = 27 getrandom("\xd0\xde\x9c\x8e\x70\x1c\xbc\x16", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555be4ad00 brk(0x55555be6bd00) = 0x55555be6bd00 brk(0x55555be6c000) = 0x55555be6c000 mprotect(0x7ff5426a8000, 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=0x55555be4a650) = 5781 [pid 5781] set_robust_list(0x55555be4a660, 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) = 0x7ff53a000000 [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(0x7ff53a000000, 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 [ 184.126936][ T5781] loop0: detected capacity change from 0 to 32768 [ 184.251555][ T5781] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,norecovery,reconstruct_alloc [ 184.266371][ T5781] bcachefs (loop0): recovering from clean shutdown, journal seq 10 [ 184.274995][ T5781] bcachefs (loop0): superblock requires following recovery passes to be run: [ 184.274995][ T5781] check_directory_structure [ 184.290357][ T5781] bcachefs (loop0): Version upgrade required: [ 184.290357][ T5781] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete [ 184.290357][ T5781] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.13: inode_has_child_snapshots [ 184.290357][ 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_nlinks,set_fs_needs_rebalance [ 184.363310][ T5781] bcachefs (loop0): dropping and reconstructing all alloc info [ 184.410033][ T5781] bcachefs (loop0): accounting_read... done [ 184.416714][ T5781] bcachefs (loop0): alloc_read... done [ 184.422911][ T5781] bcachefs (loop0): stripes_read... done [ 184.429050][ T5781] bcachefs (loop0): snapshots_read... done [pid 5781] mount("/dev/loop0", "./file1", "bcachefs", 0, "\x64\x61\x74\x61\x5f\x63\x68\x65\x3e\x5c\x06\x9b\x9a\x23\x14\xd7\x3b\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"...) = 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] openat(AT_FDCWD, "cgroup.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5781] exit_group(0) = ? [ 184.435601][ T5781] bcachefs (loop0): check_allocations... done [ 184.515377][ T5781] bcachefs (loop0): going read-write [ 184.532209][ T5781] bcachefs (loop0): done starting filesystem [pid 5781] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5781, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=78 /* 0.78 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, child_tidptr=0x55555be4a650) = 5794 ./strace-static-x86_64: Process 5794 attached [pid 5794] set_robust_list(0x55555be4a660, 24) = 0 [pid 5794] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5794] setpgid(0, 0) = 0 [pid 5794] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5794] write(3, "1000", 4) = 4 [pid 5794] close(3executing program ) = 0 [pid 5794] write(1, "executing program\n", 18) = 18 [pid 5794] memfd_create("syzkaller", 0) = 3 [pid 5794] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff53a000000 [ 184.899482][ T5791] ===================================================== [ 184.906828][ T5791] BUG: KMSAN: uninit-value in bch2_inode_v3_validate+0x481/0x5a0 [ 184.915021][ T5791] bch2_inode_v3_validate+0x481/0x5a0 [ 184.920813][ T5791] bch2_bkey_val_validate+0x2b5/0x440 [ 184.926433][ T5791] validate_bset_keys+0x1531/0x2080 [ 184.932056][ T5791] validate_bset_for_write+0x142/0x290 [ 184.937753][ T5791] __bch2_btree_node_write+0x53df/0x6830 [ 184.943762][ T5791] bch2_btree_node_write+0xa5/0x2e0 [ 184.949412][ T5791] __btree_node_flush+0x606/0x680 [ 184.954628][ T5791] bch2_btree_node_flush1+0x38/0x60 [ 184.960208][ T5791] journal_flush_pins+0xce6/0x1780 [ 184.965509][ T5791] __bch2_journal_reclaim+0xda8/0x1670 [ 184.971297][ T5791] bch2_journal_reclaim_thread+0x18e/0x760 [ 184.977304][ T5791] kthread+0x3e2/0x540 [ 184.981700][ T5791] ret_from_fork+0x6d/0x90 [ 184.986384][ T5791] ret_from_fork_asm+0x1a/0x30 [ 184.991560][ T5791] [ 184.993989][ T5791] Uninit was stored to memory at: [ 184.999436][ T5791] bch2_sort_keys_keep_unwritten_whiteouts+0x12d5/0x19d0 [ 185.006720][ T5791] __bch2_btree_node_write+0x3ae8/0x6830 [ 185.012728][ T5791] bch2_btree_node_write+0xa5/0x2e0 [ 185.018138][ T5791] __btree_node_flush+0x606/0x680 [ 185.023571][ T5791] bch2_btree_node_flush1+0x38/0x60 [ 185.029122][ T5791] journal_flush_pins+0xce6/0x1780 [ 185.034417][ T5791] __bch2_journal_reclaim+0xda8/0x1670 [ 185.040184][ T5791] bch2_journal_reclaim_thread+0x18e/0x760 [ 185.046201][ T5791] kthread+0x3e2/0x540 [ 185.050609][ T5791] ret_from_fork+0x6d/0x90 [ 185.055214][ T5791] ret_from_fork_asm+0x1a/0x30 [ 185.060318][ T5791] [ 185.062736][ T5791] Uninit was created at: [ 185.067246][ T5791] ___kmalloc_large_node+0x22c/0x370 [ 185.072886][ T5791] __kmalloc_large_node_noprof+0x3f/0x1e0 [ 185.080053][ T5791] __kmalloc_node_noprof+0xc96/0x1250 [ 185.085651][ T5791] __kvmalloc_node_noprof+0xc0/0x2d0 [ 185.091453][ T5791] btree_node_sort+0x78a/0x1d30 [ 185.096529][ T5791] bch2_btree_post_write_cleanup+0x1b0/0xf20 [ 185.102873][ T5791] bch2_btree_node_write+0x21c/0x2e0 [ 185.108388][ T5791] __btree_node_flush+0x606/0x680 [ 185.113832][ T5791] bch2_btree_node_flush0+0x35/0x60 [ 185.119351][ T5791] journal_flush_pins+0xce6/0x1780 [ 185.124658][ T5791] __bch2_journal_reclaim+0xda8/0x1670 [ 185.130521][ T5791] bch2_journal_reclaim_thread+0x18e/0x760 [ 185.136530][ T5791] kthread+0x3e2/0x540 [ 185.141023][ T5791] ret_from_fork+0x6d/0x90 [ 185.145623][ T5791] ret_from_fork_asm+0x1a/0x30 [ 185.150815][ T5791] [ 185.153264][ T5791] CPU: 0 UID: 0 PID: 5791 Comm: bch-reclaim/loo Not tainted 6.13.0-rc6-syzkaller-00036-gfbfd64d25c7a #0 [ 185.164713][ T5791] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 185.175164][ T5791] ===================================================== [ 185.182324][ T5791] Disabling lock debugging due to kernel taint [ 185.188854][ T5791] Kernel panic - not syncing: kmsan.panic set ... [ 185.195429][ T5791] CPU: 0 UID: 0 PID: 5791 Comm: bch-reclaim/loo Tainted: G B 6.13.0-rc6-syzkaller-00036-gfbfd64d25c7a #0 [ 185.208254][ T5791] Tainted: [B]=BAD_PAGE [ 185.212519][ T5791] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 185.222745][ T5791] Call Trace: [ 185.226150][ T5791] [ 185.229191][ T5791] dump_stack_lvl+0x216/0x2d0 [ 185.234111][ T5791] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 185.240122][ T5791] dump_stack+0x1e/0x24 [ 185.244491][ T5791] panic+0x4e2/0xcf0 [pid 5794] 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 5794] munmap(0x7ff53a000000, 138412032) = 0 [pid 5794] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5794] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [ 185.248588][ T5791] ? kmsan_get_metadata+0x81/0x1c0 [ 185.253899][ T5791] kmsan_report+0x2c7/0x2d0 [ 185.258583][ T5791] ? kmsan_get_metadata+0x13e/0x1c0 [ 185.263983][ T5791] ? kmsan_get_metadata+0x13e/0x1c0 [ 185.269373][ T5791] ? __msan_warning+0x95/0x120 [ 185.274356][ T5791] ? bch2_inode_v3_validate+0x481/0x5a0 [ 185.280127][ T5791] ? bch2_bkey_val_validate+0x2b5/0x440 [ 185.285901][ T5791] ? validate_bset_keys+0x1531/0x2080 [ 185.291503][ T5791] ? validate_bset_for_write+0x142/0x290 [pid 5794] ioctl(4, LOOP_CLR_FD) = 0 [pid 5794] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5794] close(4) = 0 [ 185.297371][ T5791] ? __bch2_btree_node_write+0x53df/0x6830 [ 185.303425][ T5791] ? bch2_btree_node_write+0xa5/0x2e0 [ 185.309053][ T5791] ? __btree_node_flush+0x606/0x680 [ 185.314458][ T5791] ? bch2_btree_node_flush1+0x38/0x60 [ 185.320044][ T5791] ? journal_flush_pins+0xce6/0x1780 [ 185.325608][ T5791] ? __bch2_journal_reclaim+0xda8/0x1670 [ 185.331438][ T5791] ? bch2_journal_reclaim_thread+0x18e/0x760 [ 185.337628][ T5791] ? kthread+0x3e2/0x540 [ 185.342056][ T5791] ? ret_from_fork+0x6d/0x90 [ 185.346840][ T5791] ? ret_from_fork_asm+0x1a/0x30 [ 185.352016][ T5791] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 185.358026][ T5791] ? kmsan_get_metadata+0x13e/0x1c0 [ 185.363412][ T5791] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 185.370012][ T5791] ? kmsan_get_metadata+0x13e/0x1c0 [ 185.375396][ T5791] ? kmsan_get_metadata+0x13e/0x1c0 [ 185.380782][ T5791] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 185.386797][ T5791] ? kmsan_get_metadata+0x13e/0x1c0 [ 185.392208][ T5791] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 185.398227][ T5791] ? kmsan_get_metadata+0x13e/0x1c0 [ 185.403619][ T5791] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 185.409636][ T5791] __msan_warning+0x95/0x120 [ 185.414457][ T5791] bch2_inode_v3_validate+0x481/0x5a0 [ 185.420066][ T5791] ? __pfx_bch2_inode_v3_validate+0x10/0x10 [ 185.426194][ T5791] bch2_bkey_val_validate+0x2b5/0x440 [ 185.431816][ T5791] validate_bset_keys+0x1531/0x2080 [ 185.437302][ T5791] validate_bset_for_write+0x142/0x290 [ 185.443013][ T5791] __bch2_btree_node_write+0x53df/0x6830 [ 185.448890][ T5791] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 185.454921][ T5791] ? filter_irq_stacks+0x60/0x1a0 [ 185.460233][ T5791] bch2_btree_node_write+0xa5/0x2e0 [ 185.465675][ T5791] __btree_node_flush+0x606/0x680 [ 185.470907][ T5791] ? __btree_node_flush+0xd3/0x680 [ 185.476236][ T5791] ? __pfx_bch2_btree_node_flush1+0x10/0x10 [ 185.482339][ T5791] bch2_btree_node_flush1+0x38/0x60 [ 185.487751][ T5791] journal_flush_pins+0xce6/0x1780 [ 185.493116][ T5791] __bch2_journal_reclaim+0xda8/0x1670 [ 185.498782][ T5791] ? __try_to_del_timer_sync+0x3d3/0x420 [ 185.504682][ T5791] bch2_journal_reclaim_thread+0x18e/0x760 [ 185.510722][ T5791] kthread+0x3e2/0x540 [ 185.514994][ T5791] ? __pfx_bch2_journal_reclaim_thread+0x10/0x10 [ 185.521538][ T5791] ? __pfx_kthread+0x10/0x10 [ 185.526315][ T5791] ret_from_fork+0x6d/0x90 [ 185.530944][ T5791] ? __pfx_kthread+0x10/0x10 [ 185.535728][ T5791] ret_from_fork_asm+0x1a/0x30 [ 185.540733][ T5791] [ 185.544178][ T5791] Kernel Offset: disabled [ 185.548566][ T5791] Rebooting in 86400 seconds..