./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2105562573 <...> Warning: Permanently added '10.128.0.93' (ED25519) to the list of known hosts. execve("./syz-executor2105562573", ["./syz-executor2105562573"], 0x7ffd9c9f37a0 /* 10 vars */) = 0 brk(NULL) = 0x555585fd6000 brk(0x555585fd6d00) = 0x555585fd6d00 arch_prctl(ARCH_SET_FS, 0x555585fd6380) = 0 set_tid_address(0x555585fd6650) = 5773 set_robust_list(0x555585fd6660, 24) = 0 rseq(0x555585fd6ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2105562573", 4096) = 28 getrandom("\x9d\x79\x8b\x96\xf9\x43\xb2\xf2", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555585fd6d00 brk(0x555585ff7d00) = 0x555585ff7d00 brk(0x555585ff8000) = 0x555585ff8000 mprotect(0x7f9727230000, 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=0x555585fd6650) = 5774 ./strace-static-x86_64: Process 5774 attached [pid 5774] set_robust_list(0x555585fd6660, 24) = 0 [pid 5774] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5774] setpgid(0, 0) = 0 [pid 5774] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5774] write(3, "1000", 4) = 4 [pid 5774] close(3) = 0 executing program [pid 5774] write(1, "executing program\n", 18) = 18 [pid 5774] memfd_create("syzkaller", 0) = 3 [pid 5774] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f971ec00000 [pid 5774] 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 5774] munmap(0x7f971ec00000, 138412032) = 0 [pid 5774] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5774] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5774] close(3) = 0 [pid 5774] close(4) = 0 [pid 5774] mkdir("./file1", 0777) = 0 [ 181.660416][ T5774] loop0: detected capacity change from 0 to 32768 [ 181.785444][ T5774] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=crc64,norecovery,reconstruct_alloc [ 181.800266][ T5774] bcachefs (loop0): recovering from clean shutdown, journal seq 10 [ 181.809990][ T5774] bcachefs (loop0): Version upgrade required: [ 181.809990][ T5774] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete [ 181.809990][ T5774] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.13: inode_has_child_snapshots [ 181.809990][ T5774] 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 [ 181.884535][ T5774] bcachefs (loop0): dropping and reconstructing all alloc info [ 181.931798][ T5774] bcachefs (loop0): accounting_read... done [ 181.938737][ T5774] bcachefs (loop0): alloc_read... done [ 181.944781][ T5774] bcachefs (loop0): stripes_read... done [ 181.950782][ T5774] bcachefs (loop0): snapshots_read... done [pid 5774] 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 5774] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5774] chdir("./file1") = 0 [pid 5774] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5774] ioctl(4, LOOP_CLR_FD) = 0 [pid 5774] close(4) = 0 [pid 5774] mkdir("./control", 000) = 0 [pid 5774] exit_group(0) = ? [ 181.957218][ T5774] bcachefs (loop0): check_allocations... done [ 182.036711][ T5774] bcachefs (loop0): going read-write [ 182.053339][ T5774] bcachefs (loop0): done starting filesystem [pid 5774] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5774, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=70 /* 0.70 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=0x555585fd6650) = 5787 ./strace-static-x86_64: Process 5787 attached [pid 5787] set_robust_list(0x555585fd6660, 24) = 0 [pid 5787] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5787] setpgid(0, 0) = 0 [pid 5787] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5787] write(3, "1000", 4) = 4 [pid 5787] close(3) = 0 [pid 5787] write(1, "executing program\n", 18executing program ) = 18 [pid 5787] memfd_create("syzkaller", 0) = 3 [pid 5787] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f971ec00000 [ 182.432250][ T5784] ===================================================== [ 182.439499][ T5784] BUG: KMSAN: uninit-value in bch2_inode_v3_validate+0x481/0x5a0 [ 182.447700][ T5784] bch2_inode_v3_validate+0x481/0x5a0 [ 182.453359][ T5784] bch2_bkey_val_validate+0x2b5/0x440 [ 182.458949][ T5784] validate_bset_keys+0x1531/0x2080 [ 182.464432][ T5784] validate_bset_for_write+0x142/0x290 [ 182.470122][ T5784] __bch2_btree_node_write+0x53df/0x6830 [ 182.476083][ T5784] bch2_btree_node_write+0xa5/0x2e0 [ 182.481560][ T5784] __btree_node_flush+0x606/0x680 [ 182.486790][ T5784] bch2_btree_node_flush1+0x38/0x60 [ 182.492310][ T5784] journal_flush_pins+0xce6/0x1780 [ 182.497602][ T5784] __bch2_journal_reclaim+0xda8/0x1670 [ 182.503314][ T5784] bch2_journal_reclaim_thread+0x18e/0x760 [ 182.509308][ T5784] kthread+0x3e2/0x540 [ 182.513611][ T5784] ret_from_fork+0x6d/0x90 [ 182.518225][ T5784] ret_from_fork_asm+0x1a/0x30 [ 182.523260][ T5784] [ 182.525676][ T5784] Uninit was stored to memory at: [ 182.530992][ T5784] bch2_sort_keys_keep_unwritten_whiteouts+0x12d5/0x19d0 [ 182.538444][ T5784] __bch2_btree_node_write+0x3ae8/0x6830 [ 182.544390][ T5784] bch2_btree_node_write+0xa5/0x2e0 [ 182.549798][ T5784] __btree_node_flush+0x606/0x680 [ 182.555164][ T5784] bch2_btree_node_flush1+0x38/0x60 [ 182.560554][ T5784] journal_flush_pins+0xce6/0x1780 [ 182.565926][ T5784] __bch2_journal_reclaim+0xda8/0x1670 [ 182.571635][ T5784] bch2_journal_reclaim_thread+0x18e/0x760 [ 182.577640][ T5784] kthread+0x3e2/0x540 [ 182.581950][ T5784] ret_from_fork+0x6d/0x90 [ 182.586547][ T5784] ret_from_fork_asm+0x1a/0x30 [ 182.591627][ T5784] [ 182.594048][ T5784] Uninit was created at: [ 182.598571][ T5784] ___kmalloc_large_node+0x22c/0x370 [ 182.604152][ T5784] __kmalloc_large_node_noprof+0x3f/0x1e0 [ 182.610101][ T5784] __kmalloc_node_noprof+0xc96/0x1250 [ 182.615822][ T5784] __kvmalloc_node_noprof+0xc0/0x2d0 [ 182.621290][ T5784] btree_node_sort+0x78a/0x1d30 [ 182.626431][ T5784] bch2_btree_post_write_cleanup+0x1b0/0xf20 [ 182.632711][ T5784] bch2_btree_node_write+0x21c/0x2e0 [ 182.638214][ T5784] __btree_node_flush+0x606/0x680 [ 182.643509][ T5784] bch2_btree_node_flush0+0x35/0x60 [ 182.648901][ T5784] journal_flush_pins+0xce6/0x1780 [ 182.654294][ T5784] __bch2_journal_reclaim+0xda8/0x1670 [ 182.659949][ T5784] bch2_journal_reclaim_thread+0x18e/0x760 [ 182.667402][ T5784] kthread+0x3e2/0x540 [ 182.672047][ T5784] ret_from_fork+0x6d/0x90 [ 182.676657][ T5784] ret_from_fork_asm+0x1a/0x30 [ 182.681781][ T5784] [ 182.684232][ T5784] CPU: 1 UID: 0 PID: 5784 Comm: bch-reclaim/loo Not tainted 6.13.0-rc7-syzkaller-00019-gc45323b7560e #0 [ 182.695683][ T5784] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 182.706018][ T5784] ===================================================== [ 182.713197][ T5784] Disabling lock debugging due to kernel taint [ 182.719476][ T5784] Kernel panic - not syncing: kmsan.panic set ... [ 182.726033][ T5784] CPU: 1 UID: 0 PID: 5784 Comm: bch-reclaim/loo Tainted: G B 6.13.0-rc7-syzkaller-00019-gc45323b7560e #0 [ 182.738850][ T5784] Tainted: [B]=BAD_PAGE [ 182.743115][ T5784] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 182.753323][ T5784] Call Trace: [ 182.756725][ T5784] [ 182.759766][ T5784] dump_stack_lvl+0x216/0x2d0 [ 182.764656][ T5784] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 182.770667][ T5784] dump_stack+0x1e/0x24 [ 182.775029][ T5784] panic+0x4e2/0xcf0 [pid 5787] 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 5787] munmap(0x7f971ec00000, 138412032) = 0 [pid 5787] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5787] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5787] ioctl(4, LOOP_CLR_FD) = 0 [pid 5787] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5787] close(4) = 0 [ 182.779129][ T5784] ? kmsan_get_metadata+0x111/0x1c0 [ 182.784528][ T5784] kmsan_report+0x2c7/0x2d0 [ 182.789200][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 182.794588][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 182.799977][ T5784] ? __msan_warning+0x95/0x120 [ 182.804963][ T5784] ? bch2_inode_v3_validate+0x481/0x5a0 [ 182.810734][ T5784] ? bch2_bkey_val_validate+0x2b5/0x440 [ 182.816508][ T5784] ? validate_bset_keys+0x1531/0x2080 [ 182.822113][ T5784] ? validate_bset_for_write+0x142/0x290 [ 182.827974][ T5784] ? __bch2_btree_node_write+0x53df/0x6830 [ 182.834011][ T5784] ? bch2_btree_node_write+0xa5/0x2e0 [ 182.839600][ T5784] ? __btree_node_flush+0x606/0x680 [ 182.844997][ T5784] ? bch2_btree_node_flush1+0x38/0x60 [ 182.850566][ T5784] ? journal_flush_pins+0xce6/0x1780 [ 182.856043][ T5784] ? __bch2_journal_reclaim+0xda8/0x1670 [ 182.861955][ T5784] ? bch2_journal_reclaim_thread+0x18e/0x760 [ 182.868135][ T5784] ? kthread+0x3e2/0x540 [ 182.872552][ T5784] ? ret_from_fork+0x6d/0x90 [ 182.877336][ T5784] ? ret_from_fork_asm+0x1a/0x30 [ 182.882509][ T5784] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 182.888505][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 182.893881][ T5784] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 182.900448][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 182.905827][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 182.911203][ T5784] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 182.917195][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 182.922577][ T5784] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 182.928573][ T5784] ? kmsan_get_metadata+0x13e/0x1c0 [ 182.933958][ T5784] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 182.939957][ T5784] __msan_warning+0x95/0x120 [ 182.944773][ T5784] bch2_inode_v3_validate+0x481/0x5a0 [ 182.950374][ T5784] ? __pfx_bch2_inode_v3_validate+0x10/0x10 [ 182.956488][ T5784] bch2_bkey_val_validate+0x2b5/0x440 [ 182.962105][ T5784] validate_bset_keys+0x1531/0x2080 [ 182.967575][ T5784] validate_bset_for_write+0x142/0x290 [ 182.973364][ T5784] __bch2_btree_node_write+0x53df/0x6830 [ 182.979232][ T5784] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 182.985244][ T5784] ? filter_irq_stacks+0x60/0x1a0 [ 182.990526][ T5784] bch2_btree_node_write+0xa5/0x2e0 [ 182.995955][ T5784] __btree_node_flush+0x606/0x680 [ 183.001183][ T5784] ? __btree_node_flush+0xd3/0x680 [ 183.006501][ T5784] ? __pfx_bch2_btree_node_flush1+0x10/0x10 [ 183.012606][ T5784] bch2_btree_node_flush1+0x38/0x60 [ 183.018011][ T5784] journal_flush_pins+0xce6/0x1780 [ 183.023356][ T5784] __bch2_journal_reclaim+0xda8/0x1670 [ 183.029015][ T5784] ? __try_to_del_timer_sync+0x3d3/0x420 [ 183.034903][ T5784] bch2_journal_reclaim_thread+0x18e/0x760 [ 183.040932][ T5784] kthread+0x3e2/0x540 [ 183.045180][ T5784] ? __pfx_bch2_journal_reclaim_thread+0x10/0x10 [ 183.051728][ T5784] ? __pfx_kthread+0x10/0x10 [ 183.056498][ T5784] ret_from_fork+0x6d/0x90 [ 183.061107][ T5784] ? __pfx_kthread+0x10/0x10 [ 183.065873][ T5784] ret_from_fork_asm+0x1a/0x30 [ 183.070874][ T5784] [ 183.074273][ T5784] Kernel Offset: disabled [ 183.078666][ T5784] Rebooting in 86400 seconds..