./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3487335706 <...> Warning: Permanently added '10.128.0.234' (ED25519) to the list of known hosts. execve("./syz-executor3487335706", ["./syz-executor3487335706"], 0x7ffe655831a0 /* 10 vars */) = 0 brk(NULL) = 0x55555995a000 brk(0x55555995ad00) = 0x55555995ad00 arch_prctl(ARCH_SET_FS, 0x55555995a380) = 0 set_tid_address(0x55555995a650) = 5777 set_robust_list(0x55555995a660, 24) = 0 rseq(0x55555995aca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3487335706", 4096) = 28 getrandom("\xea\x18\x4a\xdf\x6f\xa6\xdb\x02", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555995ad00 brk(0x55555997bd00) = 0x55555997bd00 brk(0x55555997c000) = 0x55555997c000 mprotect(0x7fbeb9ba6000, 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=0x55555995a650) = 5778 ./strace-static-x86_64: Process 5778 attached [pid 5778] set_robust_list(0x55555995a660, 24) = 0 [pid 5778] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5778] setpgid(0, 0) = 0 [pid 5778] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5778] write(3, "1000", 4executing program ) = 4 [pid 5778] close(3) = 0 [pid 5778] write(1, "executing program\n", 18) = 18 [pid 5778] bind(-1, {sa_family=AF_UNIX, sun_path=@"\x00\x20\x4e\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"}, 110) = -1 EBADF (Bad file descriptor) [pid 5778] fcntl(-1, F_GETLEASE) = -1 EBADF (Bad file descriptor) [pid 5778] close_range(4294967295, 4294967295, 0) = 0 [pid 5778] prlimit64(0, RLIMIT_RTPRIO, {rlim_cur=8, rlim_max=140737505132683}, NULL) = 0 [pid 5778] memfd_create("syzkaller", 0) = 3 [pid 5778] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fbeb1600000 [pid 5778] 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 5778] munmap(0x7fbeb1600000, 138412032) = 0 [pid 5778] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5778] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5778] close(3) = 0 [pid 5778] close(4) = 0 [pid 5778] mkdir("./file1", 0777) = 0 [ 207.702429][ T5778] loop0: detected capacity change from 0 to 32768 [ 207.854118][ T5778] 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 [ 207.876225][ T5778] bcachefs (loop0): recovering from clean shutdown, journal seq 10 [ 207.886061][ T5778] bcachefs (loop0): Version upgrade required: [ 207.886061][ T5778] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete [ 207.886061][ T5778] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.13: inode_has_child_snapshots [ 207.886061][ T5778] 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 [ 207.961178][ T5778] bcachefs (loop0): dropping and reconstructing all alloc info [ 208.015091][ T5778] bcachefs (loop0): check_topology... done [ 208.021502][ T5778] bcachefs (loop0): accounting_read... done [ 208.028441][ T5778] bcachefs (loop0): alloc_read... done [ 208.034397][ T5778] bcachefs (loop0): stripes_read... done [ 208.040550][ T5778] bcachefs (loop0): snapshots_read... done [pid 5778] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS|MS_I_VERSION, "acl,direct_io,norecovery,fsck,journal_flush_disabled,noreTovery,btree_node_mem_ptr_optimization,reco"...) = 0 [pid 5778] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5778] chdir("./file1") = 0 [pid 5778] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5778] ioctl(4, LOOP_CLR_FD) = 0 [pid 5778] close(4) = 0 [ 208.047328][ T5778] bcachefs (loop0): check_allocations... done [ 208.145760][ T5778] bcachefs (loop0): going read-write [ 208.164429][ T5778] bcachefs (loop0): done starting filesystem [pid 5778] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5778] exit_group(0) = ? [pid 5778] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5778, si_uid=0, si_status=0, si_utime=0, si_stime=90 /* 0.90 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=0x55555995a650) = 5790 ./strace-static-x86_64: Process 5790 attached [pid 5790] set_robust_list(0x55555995a660, 24) = 0 [pid 5790] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5790] setpgid(0, 0) = 0 [pid 5790] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5790] write(3, "1000", 4) = 4 [pid 5790] close(3) = 0 executing program [pid 5790] write(1, "executing program\n", 18) = 18 [pid 5790] bind(-1, {sa_family=AF_UNIX, sun_path=@"\x00\x20\x4e\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"}, 110) = -1 EBADF (Bad file descriptor) [pid 5790] fcntl(-1, F_GETLEASE) = -1 EBADF (Bad file descriptor) [pid 5790] close_range(4294967295, 4294967295, 0) = 0 [pid 5790] prlimit64(0, RLIMIT_RTPRIO, {rlim_cur=8, rlim_max=140737505132683}, NULL) = 0 [pid 5790] memfd_create("syzkaller", 0) = 3 [pid 5790] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fbeb1600000 [ 208.646331][ T5787] ===================================================== [ 208.653800][ T5787] BUG: KMSAN: uninit-value in bch2_inode_v3_validate+0x481/0x5a0 [ 208.662066][ T5787] bch2_inode_v3_validate+0x481/0x5a0 [ 208.667836][ T5787] bch2_bkey_val_validate+0x2b5/0x440 [ 208.673495][ T5787] validate_bset_keys+0x1531/0x2080 [ 208.679057][ T5787] validate_bset_for_write+0x142/0x290 [ 208.684806][ T5787] __bch2_btree_node_write+0x53df/0x6830 [ 208.690863][ T5787] bch2_btree_node_write+0xa5/0x2e0 [ 208.696454][ T5787] __btree_node_flush+0x606/0x680 [ 208.701723][ T5787] bch2_btree_node_flush1+0x38/0x60 [ 208.707336][ T5787] journal_flush_pins+0xce6/0x1780 [ 208.712692][ T5787] __bch2_journal_reclaim+0xda8/0x1670 [ 208.718579][ T5787] bch2_journal_reclaim_thread+0x18e/0x760 [ 208.724635][ T5787] kthread+0x3e2/0x540 [ 208.729092][ T5787] ret_from_fork+0x6d/0x90 [ 208.733743][ T5787] ret_from_fork_asm+0x1a/0x30 [ 208.738899][ T5787] [ 208.741363][ T5787] Uninit was stored to memory at: [ 208.746881][ T5787] bch2_sort_keys_keep_unwritten_whiteouts+0x12d5/0x19d0 [ 208.754247][ T5787] __bch2_btree_node_write+0x3ae8/0x6830 [ 208.760298][ T5787] bch2_btree_node_write+0xa5/0x2e0 [ 208.765950][ T5787] __btree_node_flush+0x606/0x680 [ 208.771242][ T5787] bch2_btree_node_flush1+0x38/0x60 [ 208.776795][ T5787] journal_flush_pins+0xce6/0x1780 [ 208.782184][ T5787] __bch2_journal_reclaim+0xda8/0x1670 [ 208.788017][ T5787] bch2_journal_reclaim_thread+0x18e/0x760 [ 208.794083][ T5787] kthread+0x3e2/0x540 [ 208.798462][ T5787] ret_from_fork+0x6d/0x90 [ 208.803115][ T5787] ret_from_fork_asm+0x1a/0x30 [ 208.808282][ T5787] [ 208.810733][ T5787] Uninit was created at: [ 208.815441][ T5787] ___kmalloc_large_node+0x22c/0x370 [ 208.821009][ T5787] __kmalloc_large_node_noprof+0x3f/0x1e0 [ 208.827203][ T5787] __kmalloc_node_noprof+0xc96/0x1250 [ 208.832852][ T5787] __kvmalloc_node_noprof+0xc0/0x2d0 [ 208.838536][ T5787] btree_node_sort+0x78a/0x1d30 [ 208.843677][ T5787] bch2_btree_post_write_cleanup+0x1b0/0xf20 [ 208.850166][ T5787] bch2_btree_node_write+0x21c/0x2e0 [ 208.855812][ T5787] __btree_node_flush+0x606/0x680 [ 208.861078][ T5787] bch2_btree_node_flush0+0x35/0x60 [ 208.866870][ T5787] journal_flush_pins+0xce6/0x1780 [ 208.872239][ T5787] __bch2_journal_reclaim+0xda8/0x1670 [ 208.878120][ T5787] bch2_journal_reclaim_thread+0x18e/0x760 [ 208.884200][ T5787] kthread+0x3e2/0x540 [ 208.888651][ T5787] ret_from_fork+0x6d/0x90 [ 208.893311][ T5787] ret_from_fork_asm+0x1a/0x30 [ 208.898667][ T5787] [ 208.901157][ T5787] CPU: 0 UID: 0 PID: 5787 Comm: bch-reclaim/loo Not tainted 6.13.0-rc7-syzkaller-00102-gce69b4019001 #0 [ 208.912713][ T5787] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 208.923124][ T5787] ===================================================== [ 208.930473][ T5787] Disabling lock debugging due to kernel taint [ 208.936936][ T5787] Kernel panic - not syncing: kmsan.panic set ... [ 208.943547][ T5787] CPU: 0 UID: 0 PID: 5787 Comm: bch-reclaim/loo Tainted: G B 6.13.0-rc7-syzkaller-00102-gce69b4019001 #0 [ 208.956431][ T5787] Tainted: [B]=BAD_PAGE [ 208.960746][ T5787] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 208.971035][ T5787] Call Trace: [ 208.974477][ T5787] [ 208.977573][ T5787] dump_stack_lvl+0x216/0x2d0 [ 208.982535][ T5787] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 208.988632][ T5787] dump_stack+0x1e/0x24 [ 208.993059][ T5787] panic+0x4e2/0xcf0 [pid 5790] 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 5790] munmap(0x7fbeb1600000, 138412032) = 0 [pid 5790] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5790] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5790] ioctl(4, LOOP_CLR_FD) = 0 [ 208.997215][ T5787] ? kmsan_get_metadata+0x111/0x1c0 [ 209.002683][ T5787] kmsan_report+0x2c7/0x2d0 [ 209.007414][ T5787] ? kmsan_get_metadata+0x13e/0x1c0 [ 209.012861][ T5787] ? kmsan_get_metadata+0x13e/0x1c0 [ 209.018304][ T5787] ? __msan_warning+0x95/0x120 [ 209.023338][ T5787] ? bch2_inode_v3_validate+0x481/0x5a0 [ 209.029182][ T5787] ? bch2_bkey_val_validate+0x2b5/0x440 [ 209.035031][ T5787] ? validate_bset_keys+0x1531/0x2080 [ 209.040719][ T5787] ? validate_bset_for_write+0x142/0x290 [pid 5790] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5790] close(4) = 0 [ 209.046677][ T5787] ? __bch2_btree_node_write+0x53df/0x6830 [ 209.052832][ T5787] ? bch2_btree_node_write+0xa5/0x2e0 [ 209.058512][ T5787] ? __btree_node_flush+0x606/0x680 [ 209.063985][ T5787] ? bch2_btree_node_flush1+0x38/0x60 [ 209.069621][ T5787] ? journal_flush_pins+0xce6/0x1780 [ 209.075154][ T5787] ? __bch2_journal_reclaim+0xda8/0x1670 [ 209.081036][ T5787] ? bch2_journal_reclaim_thread+0x18e/0x760 [ 209.087301][ T5787] ? kthread+0x3e2/0x540 [ 209.091778][ T5787] ? ret_from_fork+0x6d/0x90 [ 209.096620][ T5787] ? ret_from_fork_asm+0x1a/0x30 [ 209.101853][ T5787] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 209.107920][ T5787] ? kmsan_get_metadata+0x13e/0x1c0 [ 209.113354][ T5787] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 209.120015][ T5787] ? kmsan_get_metadata+0x13e/0x1c0 [ 209.125451][ T5787] ? kmsan_get_metadata+0x13e/0x1c0 [ 209.130892][ T5787] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 209.136950][ T5787] ? kmsan_get_metadata+0x13e/0x1c0 [ 209.142385][ T5787] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 209.148455][ T5787] ? kmsan_get_metadata+0x13e/0x1c0 [ 209.153934][ T5787] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 209.160006][ T5787] __msan_warning+0x95/0x120 [ 209.164935][ T5787] bch2_inode_v3_validate+0x481/0x5a0 [ 209.170613][ T5787] ? __pfx_bch2_inode_v3_validate+0x10/0x10 [ 209.176800][ T5787] bch2_bkey_val_validate+0x2b5/0x440 [ 209.182490][ T5787] validate_bset_keys+0x1531/0x2080 [ 209.188050][ T5787] validate_bset_for_write+0x142/0x290 [ 209.193840][ T5787] __bch2_btree_node_write+0x53df/0x6830 [ 209.199795][ T5787] ? __update_load_avg_se+0xbb0/0x11a0 [ 209.205601][ T5787] bch2_btree_node_write+0xa5/0x2e0 [ 209.211088][ T5787] __btree_node_flush+0x606/0x680 [ 209.216364][ T5787] ? __btree_node_flush+0xd3/0x680 [ 209.221751][ T5787] ? __pfx_bch2_btree_node_flush1+0x10/0x10 [ 209.227939][ T5787] bch2_btree_node_flush1+0x38/0x60 [ 209.233403][ T5787] journal_flush_pins+0xce6/0x1780 [ 209.238824][ T5787] __bch2_journal_reclaim+0xda8/0x1670 [ 209.244565][ T5787] ? __try_to_del_timer_sync+0x3d3/0x420 [ 209.250521][ T5787] bch2_journal_reclaim_thread+0x18e/0x760 [ 209.256623][ T5787] kthread+0x3e2/0x540 [ 209.260935][ T5787] ? __pfx_bch2_journal_reclaim_thread+0x10/0x10 [ 209.267557][ T5787] ? __pfx_kthread+0x10/0x10 [ 209.272474][ T5787] ret_from_fork+0x6d/0x90 [ 209.277150][ T5787] ? __pfx_kthread+0x10/0x10 [ 209.281983][ T5787] ret_from_fork_asm+0x1a/0x30 [ 209.287069][ T5787] [ 209.290580][ T5787] Kernel Offset: disabled [ 209.295009][ T5787] Rebooting in 86400 seconds..