./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor187048682 <...> Warning: Permanently added '10.128.1.168' (ED25519) to the list of known hosts. execve("./syz-executor187048682", ["./syz-executor187048682"], 0x7fffc14288b0 /* 10 vars */) = 0 brk(NULL) = 0x55556383f000 brk(0x55556383fd00) = 0x55556383fd00 arch_prctl(ARCH_SET_FS, 0x55556383f380) = 0 set_tid_address(0x55556383f650) = 5782 set_robust_list(0x55556383f660, 24) = 0 rseq(0x55556383fca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor187048682", 4096) = 27 getrandom("\xee\x04\x9a\x56\x69\xe3\x9c\xc9", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556383fd00 brk(0x555563860d00) = 0x555563860d00 brk(0x555563861000) = 0x555563861000 mprotect(0x7f9f769ea000, 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=0x55556383f650) = 5783 ./strace-static-x86_64: Process 5783 attached [pid 5783] set_robust_list(0x55556383f660, 24) = 0 [pid 5783] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5783] setpgid(0, 0) = 0 [pid 5783] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5783] write(3, "1000", 4executing program ) = 4 [pid 5783] close(3) = 0 [pid 5783] write(1, "executing program\n", 18) = 18 [pid 5783] memfd_create("syzkaller", 0) = 3 [pid 5783] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9f6e400000 [pid 5783] 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 5783] munmap(0x7f9f6e400000, 138412032) = 0 [pid 5783] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5783] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5783] close(3) = 0 [pid 5783] close(4) = 0 [pid 5783] mkdir("./file1", 0777) = 0 [ 190.812772][ T5783] loop0: detected capacity change from 0 to 32768 [ 190.936927][ T5783] 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 [ 190.959100][ T5783] bcachefs (loop0): recovering from clean shutdown, journal seq 10 [ 190.968743][ T5783] bcachefs (loop0): Version upgrade required: [ 190.968743][ T5783] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete [ 190.968743][ T5783] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.13: inode_has_child_snapshots [ 190.968743][ T5783] 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 [ 191.049274][ T5783] bcachefs (loop0): dropping and reconstructing all alloc info [ 191.094758][ T5783] bcachefs (loop0): check_topology... done [ 191.101123][ T5783] bcachefs (loop0): accounting_read... done [ 191.109215][ T5783] bcachefs (loop0): alloc_read... done [ 191.115583][ T5783] bcachefs (loop0): stripes_read... done [ 191.124084][ T5783] bcachefs (loop0): snapshots_read... done [pid 5783] 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 5783] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5783] chdir("./file1") = 0 [pid 5783] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5783] ioctl(4, LOOP_CLR_FD) = 0 [pid 5783] close(4) = 0 [pid 5783] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5783] exit_group(0) = ? [ 191.131717][ T5783] bcachefs (loop0): check_allocations... done [ 191.214331][ T5783] bcachefs (loop0): going read-write [ 191.231440][ T5783] bcachefs (loop0): done starting filesystem [pid 5783] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5783, si_uid=0, si_status=0, si_utime=6 /* 0.06 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=0x55556383f650) = 5796 ./strace-static-x86_64: Process 5796 attached [pid 5796] set_robust_list(0x55556383f660, 24) = 0 [pid 5796] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5796] setpgid(0, 0) = 0 [pid 5796] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5796] write(3, "1000", 4executing program ) = 4 [pid 5796] close(3) = 0 [pid 5796] write(1, "executing program\n", 18) = 18 [pid 5796] memfd_create("syzkaller", 0) = 3 [pid 5796] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9f6e400000 [ 191.601625][ T5793] ===================================================== [ 191.609019][ T5793] BUG: KMSAN: uninit-value in bch2_inode_v3_validate+0x481/0x5a0 [ 191.617797][ T5793] bch2_inode_v3_validate+0x481/0x5a0 [ 191.623519][ T5793] bch2_bkey_val_validate+0x2b5/0x440 [ 191.629115][ T5793] validate_bset_keys+0x1531/0x2080 [ 191.634712][ T5793] validate_bset_for_write+0x142/0x290 [ 191.640404][ T5793] __bch2_btree_node_write+0x53df/0x6830 [ 191.646381][ T5793] bch2_btree_node_write+0xa5/0x2e0 [ 191.651884][ T5793] __btree_node_flush+0x606/0x680 [ 191.657113][ T5793] bch2_btree_node_flush1+0x38/0x60 [ 191.662705][ T5793] journal_flush_pins+0xce6/0x1780 [ 191.668026][ T5793] __bch2_journal_reclaim+0xda8/0x1670 [ 191.673767][ T5793] bch2_journal_reclaim_thread+0x18e/0x760 [ 191.679780][ T5793] kthread+0x3e2/0x540 [ 191.684310][ T5793] ret_from_fork+0x6d/0x90 [ 191.688916][ T5793] ret_from_fork_asm+0x1a/0x30 [ 191.694072][ T5793] [ 191.696496][ T5793] Uninit was stored to memory at: [ 191.701925][ T5793] bch2_sort_keys_keep_unwritten_whiteouts+0x12d5/0x19d0 [ 191.709203][ T5793] __bch2_btree_node_write+0x3ae8/0x6830 [ 191.715174][ T5793] bch2_btree_node_write+0xa5/0x2e0 [ 191.720593][ T5793] __btree_node_flush+0x606/0x680 [ 191.725896][ T5793] bch2_btree_node_flush1+0x38/0x60 [ 191.731463][ T5793] journal_flush_pins+0xce6/0x1780 [ 191.736774][ T5793] __bch2_journal_reclaim+0xda8/0x1670 [ 191.742510][ T5793] bch2_journal_reclaim_thread+0x18e/0x760 [ 191.748514][ T5793] kthread+0x3e2/0x540 [ 191.752874][ T5793] ret_from_fork+0x6d/0x90 [ 191.757501][ T5793] ret_from_fork_asm+0x1a/0x30 [ 191.762709][ T5793] [ 191.765133][ T5793] Uninit was created at: [ 191.769758][ T5793] ___kmalloc_large_node+0x22c/0x370 [ 191.775388][ T5793] __kmalloc_large_node_noprof+0x3f/0x1e0 [ 191.781421][ T5793] __kmalloc_node_noprof+0xc96/0x1250 [ 191.787024][ T5793] __kvmalloc_node_noprof+0xc0/0x2d0 [ 191.792671][ T5793] btree_node_sort+0x78a/0x1d30 [ 191.797753][ T5793] bch2_btree_post_write_cleanup+0x1b0/0xf20 [ 191.804056][ T5793] bch2_btree_node_write+0x21c/0x2e0 [ 191.809563][ T5793] __btree_node_flush+0x606/0x680 [ 191.814905][ T5793] bch2_btree_node_flush0+0x35/0x60 [ 191.820397][ T5793] journal_flush_pins+0xce6/0x1780 [ 191.825884][ T5793] __bch2_journal_reclaim+0xda8/0x1670 [ 191.831653][ T5793] bch2_journal_reclaim_thread+0x18e/0x760 [ 191.837663][ T5793] kthread+0x3e2/0x540 [ 191.842046][ T5793] ret_from_fork+0x6d/0x90 [ 191.846649][ T5793] ret_from_fork_asm+0x1a/0x30 [ 191.851913][ T5793] [ 191.854370][ T5793] CPU: 1 UID: 0 PID: 5793 Comm: bch-reclaim/loo Not tainted 6.13.0-rc2-syzkaller-00130-g150b567e0d57 #0 [ 191.865778][ T5793] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 [ 191.876152][ T5793] ===================================================== [ 191.883412][ T5793] Disabling lock debugging due to kernel taint [ 191.889721][ T5793] Kernel panic - not syncing: kmsan.panic set ... [pid 5796] 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 [ 191.896280][ T5793] CPU: 1 UID: 0 PID: 5793 Comm: bch-reclaim/loo Tainted: G B 6.13.0-rc2-syzkaller-00130-g150b567e0d57 #0 [ 191.909283][ T5793] Tainted: [B]=BAD_PAGE [ 191.913560][ T5793] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 [ 191.923783][ T5793] Call Trace: [ 191.927191][ T5793] [ 191.930231][ T5793] dump_stack_lvl+0x216/0x2d0 [ 191.935142][ T5793] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 191.941207][ T5793] dump_stack+0x1e/0x24 [ 191.945639][ T5793] panic+0x4e2/0xcf0 [pid 5796] munmap(0x7f9f6e400000, 138412032) = 0 [pid 5796] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5796] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5796] ioctl(4, LOOP_CLR_FD) = 0 [pid 5796] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5796] close(4) = 0 [ 191.949743][ T5793] ? kmsan_get_metadata+0x71/0x1c0 [ 191.955066][ T5793] kmsan_report+0x2c7/0x2d0 [ 191.959752][ T5793] ? kmsan_get_metadata+0x13e/0x1c0 [ 191.965148][ T5793] ? kmsan_get_metadata+0x13e/0x1c0 [ 191.970546][ T5793] ? __msan_warning+0x95/0x120 [ 191.975537][ T5793] ? bch2_inode_v3_validate+0x481/0x5a0 [ 191.981316][ T5793] ? bch2_bkey_val_validate+0x2b5/0x440 [ 191.987101][ T5793] ? validate_bset_keys+0x1531/0x2080 [ 191.992703][ T5793] ? validate_bset_for_write+0x142/0x290 [ 191.998567][ T5793] ? __bch2_btree_node_write+0x53df/0x6830 [ 192.004602][ T5793] ? bch2_btree_node_write+0xa5/0x2e0 [ 192.010197][ T5793] ? __btree_node_flush+0x606/0x680 [ 192.015608][ T5793] ? bch2_btree_node_flush1+0x38/0x60 [ 192.021187][ T5793] ? journal_flush_pins+0xce6/0x1780 [ 192.026667][ T5793] ? __bch2_journal_reclaim+0xda8/0x1670 [ 192.032491][ T5793] ? bch2_journal_reclaim_thread+0x18e/0x760 [ 192.038673][ T5793] ? kthread+0x3e2/0x540 [ 192.043098][ T5793] ? ret_from_fork+0x6d/0x90 [ 192.047885][ T5793] ? ret_from_fork_asm+0x1a/0x30 [ 192.053046][ T5793] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 192.059048][ T5793] ? kmsan_get_metadata+0x13e/0x1c0 [ 192.064445][ T5793] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 192.071029][ T5793] ? kmsan_get_metadata+0x13e/0x1c0 [ 192.076468][ T5793] ? kmsan_get_metadata+0x13e/0x1c0 [ 192.081864][ T5793] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 192.087870][ T5793] ? kmsan_get_metadata+0x13e/0x1c0 [ 192.093370][ T5793] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 192.099426][ T5793] ? kmsan_get_metadata+0x13e/0x1c0 [ 192.104839][ T5793] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 192.110853][ T5793] __msan_warning+0x95/0x120 [ 192.115676][ T5793] bch2_inode_v3_validate+0x481/0x5a0 [ 192.121287][ T5793] ? __pfx_bch2_inode_v3_validate+0x10/0x10 [ 192.127422][ T5793] bch2_bkey_val_validate+0x2b5/0x440 [ 192.133038][ T5793] validate_bset_keys+0x1531/0x2080 [ 192.138604][ T5793] validate_bset_for_write+0x142/0x290 [ 192.144302][ T5793] __bch2_btree_node_write+0x53df/0x6830 [ 192.150185][ T5793] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 192.156201][ T5793] ? filter_irq_stacks+0x60/0x1a0 [ 192.161511][ T5793] bch2_btree_node_write+0xa5/0x2e0 [ 192.166943][ T5793] __btree_node_flush+0x606/0x680 [ 192.172178][ T5793] ? __btree_node_flush+0xd3/0x680 [ 192.177519][ T5793] ? __pfx_bch2_btree_node_flush1+0x10/0x10 [ 192.183622][ T5793] bch2_btree_node_flush1+0x38/0x60 [ 192.189029][ T5793] journal_flush_pins+0xce6/0x1780 [ 192.194387][ T5793] __bch2_journal_reclaim+0xda8/0x1670 [ 192.200496][ T5793] ? __try_to_del_timer_sync+0x3d3/0x420 [ 192.207081][ T5793] bch2_journal_reclaim_thread+0x18e/0x760 [ 192.213297][ T5793] kthread+0x3e2/0x540 [ 192.218251][ T5793] ? __pfx_bch2_journal_reclaim_thread+0x10/0x10 [ 192.225140][ T5793] ? __pfx_kthread+0x10/0x10 [ 192.230094][ T5793] ret_from_fork+0x6d/0x90 [ 192.234890][ T5793] ? __pfx_kthread+0x10/0x10 [ 192.239856][ T5793] ret_from_fork_asm+0x1a/0x30 [ 192.245306][ T5793] [ 192.248762][ T5793] Kernel Offset: disabled [ 192.253183][ T5793] Rebooting in 86400 seconds..