./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2647475932 <...> Warning: Permanently added '10.128.0.152' (ED25519) to the list of known hosts. execve("./syz-executor2647475932", ["./syz-executor2647475932"], 0x7ffe36feba10 /* 10 vars */) = 0 brk(NULL) = 0x55555df22000 brk(0x55555df22d00) = 0x55555df22d00 arch_prctl(ARCH_SET_FS, 0x55555df22380) = 0 set_tid_address(0x55555df22650) = 5777 set_robust_list(0x55555df22660, 24) = 0 rseq(0x55555df22ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2647475932", 4096) = 28 getrandom("\xb6\x3a\xec\xe5\xb0\x7e\x7a\x14", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555df22d00 brk(0x55555df43d00) = 0x55555df43d00 brk(0x55555df44000) = 0x55555df44000 mprotect(0x7fb62ef2f000, 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=0x55555df22650) = 5778 ./strace-static-x86_64: Process 5778 attached [pid 5778] set_robust_list(0x55555df22660, 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] prlimit64(0, RLIMIT_RTPRIO, NULL, NULL) = 0 [pid 5778] memfd_create("syzkaller", 0) = 3 [pid 5778] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb626a00000 [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(0x7fb626a00000, 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 [ 185.105917][ T5778] loop0: detected capacity change from 0 to 32768 [ 185.243412][ 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 [ 185.265354][ T5778] bcachefs (loop0): recovering from clean shutdown, journal seq 10 [ 185.274953][ T5778] bcachefs (loop0): Version upgrade required: [ 185.274953][ T5778] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete [ 185.274953][ T5778] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.13: inode_has_child_snapshots [ 185.274953][ 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 [ 185.350000][ T5778] bcachefs (loop0): dropping and reconstructing all alloc info [ 185.397826][ T5778] bcachefs (loop0): check_topology... done [ 185.404132][ T5778] bcachefs (loop0): accounting_read... done [ 185.411404][ T5778] bcachefs (loop0): alloc_read... done [ 185.417579][ T5778] bcachefs (loop0): stripes_read... done [ 185.423684][ T5778] bcachefs (loop0): snapshots_read... done [pid 5778] 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 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 [pid 5778] creat("./bus", 000) = 4 [ 185.430269][ T5778] bcachefs (loop0): check_allocations... done [ 185.510798][ T5778] bcachefs (loop0): going read-write [ 185.528440][ T5778] bcachefs (loop0): done starting filesystem [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=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./strace-static-x86_64: Process 5790 attached , child_tidptr=0x55555df22650) = 5790 [pid 5790] set_robust_list(0x55555df22660, 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 executing program [pid 5790] close(3) = 0 [pid 5790] write(1, "executing program\n", 18) = 18 [pid 5790] prlimit64(0, RLIMIT_RTPRIO, NULL, NULL) = 0 [pid 5790] memfd_create("syzkaller", 0) = 3 [pid 5790] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb626a00000 [ 185.894398][ T5787] ===================================================== [ 185.901752][ T5787] BUG: KMSAN: uninit-value in bch2_inode_v3_validate+0x481/0x5a0 [ 185.909913][ T5787] bch2_inode_v3_validate+0x481/0x5a0 [ 185.915597][ T5787] bch2_bkey_val_validate+0x2b5/0x440 [ 185.921197][ T5787] validate_bset_keys+0x1531/0x2080 [ 185.926704][ T5787] validate_bset_for_write+0x142/0x290 [ 185.932403][ T5787] __bch2_btree_node_write+0x53df/0x6830 [ 185.938434][ T5787] bch2_btree_node_write+0xa5/0x2e0 [ 185.943947][ T5787] __btree_node_flush+0x606/0x680 [ 185.949257][ T5787] bch2_btree_node_flush1+0x38/0x60 [ 185.954888][ T5787] journal_flush_pins+0xce6/0x1780 [ 185.960203][ T5787] __bch2_journal_reclaim+0xda8/0x1670 [ 185.965934][ T5787] bch2_journal_reclaim_thread+0x18e/0x760 [ 185.971948][ T5787] kthread+0x3e2/0x540 [ 185.976310][ T5787] ret_from_fork+0x6d/0x90 [ 185.980934][ T5787] ret_from_fork_asm+0x1a/0x30 [ 185.986063][ T5787] [ 185.988483][ T5787] Uninit was stored to memory at: [ 185.993903][ T5787] bch2_sort_keys_keep_unwritten_whiteouts+0x12d5/0x19d0 [ 186.001212][ T5787] __bch2_btree_node_write+0x3ae8/0x6830 [ 186.007180][ T5787] bch2_btree_node_write+0xa5/0x2e0 [ 186.012605][ T5787] __btree_node_flush+0x606/0x680 [ 186.017915][ T5787] bch2_btree_node_flush1+0x38/0x60 [ 186.023313][ T5787] journal_flush_pins+0xce6/0x1780 [ 186.028691][ T5787] __bch2_journal_reclaim+0xda8/0x1670 [ 186.034437][ T5787] bch2_journal_reclaim_thread+0x18e/0x760 [ 186.040452][ T5787] kthread+0x3e2/0x540 [ 186.044870][ T5787] ret_from_fork+0x6d/0x90 [ 186.049583][ T5787] ret_from_fork_asm+0x1a/0x30 [ 186.054659][ T5787] [ 186.057085][ T5787] Uninit was created at: [ 186.061598][ T5787] ___kmalloc_large_node+0x22c/0x370 [ 186.067193][ T5787] __kmalloc_large_node_noprof+0x3f/0x1e0 [ 186.073154][ T5787] __kmalloc_node_noprof+0xc96/0x1250 [ 186.078838][ T5787] __kvmalloc_node_noprof+0xc0/0x2d0 [ 186.084403][ T5787] btree_node_sort+0x78a/0x1d30 [ 186.089483][ T5787] bch2_btree_post_write_cleanup+0x1b0/0xf20 [ 186.095808][ T5787] bch2_btree_node_write+0x21c/0x2e0 [ 186.101711][ T5787] __btree_node_flush+0x606/0x680 [ 186.107203][ T5787] bch2_btree_node_flush0+0x35/0x60 [ 186.112614][ T5787] journal_flush_pins+0xce6/0x1780 [ 186.118013][ T5787] __bch2_journal_reclaim+0xda8/0x1670 [ 186.123749][ T5787] bch2_journal_reclaim_thread+0x18e/0x760 [ 186.129768][ T5787] kthread+0x3e2/0x540 [ 186.134148][ T5787] ret_from_fork+0x6d/0x90 [ 186.138758][ T5787] ret_from_fork_asm+0x1a/0x30 [ 186.143837][ T5787] [ 186.146304][ T5787] CPU: 1 UID: 0 PID: 5787 Comm: bch-reclaim/loo Not tainted 6.13.0-rc5-syzkaller-00004-gccb98ccef0e5 #0 [ 186.157783][ T5787] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 186.168124][ T5787] ===================================================== [ 186.175258][ T5787] Disabling lock debugging due to kernel taint [ 186.181549][ T5787] Kernel panic - not syncing: kmsan.panic set ... [ 186.188127][ T5787] CPU: 1 UID: 0 PID: 5787 Comm: bch-reclaim/loo Tainted: G B 6.13.0-rc5-syzkaller-00004-gccb98ccef0e5 #0 [ 186.200963][ T5787] Tainted: [B]=BAD_PAGE [ 186.205238][ T5787] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 186.215467][ T5787] Call Trace: [ 186.218881][ T5787] [ 186.221929][ T5787] dump_stack_lvl+0x216/0x2d0 [ 186.226836][ T5787] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 186.232875][ T5787] dump_stack+0x1e/0x24 [ 186.237251][ 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(0x7fb626a00000, 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 [ 186.241360][ T5787] ? kmsan_get_metadata+0x111/0x1c0 [ 186.246770][ T5787] kmsan_report+0x2c7/0x2d0 [ 186.251471][ T5787] ? kmsan_get_metadata+0x13e/0x1c0 [ 186.256876][ T5787] ? kmsan_get_metadata+0x13e/0x1c0 [ 186.262279][ T5787] ? __msan_warning+0x95/0x120 [ 186.267273][ T5787] ? bch2_inode_v3_validate+0x481/0x5a0 [ 186.273036][ T5787] ? bch2_bkey_val_validate+0x2b5/0x440 [ 186.278869][ T5787] ? validate_bset_keys+0x1531/0x2080 [ 186.284481][ T5787] ? validate_bset_for_write+0x142/0x290 [ 186.290365][ T5787] ? __bch2_btree_node_write+0x53df/0x6830 [pid 5790] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5790] close(4) = 0 [ 186.296429][ T5787] ? bch2_btree_node_write+0xa5/0x2e0 [ 186.302051][ T5787] ? __btree_node_flush+0x606/0x680 [ 186.307471][ T5787] ? bch2_btree_node_flush1+0x38/0x60 [ 186.313094][ T5787] ? journal_flush_pins+0xce6/0x1780 [ 186.318591][ T5787] ? __bch2_journal_reclaim+0xda8/0x1670 [ 186.324432][ T5787] ? bch2_journal_reclaim_thread+0x18e/0x760 [ 186.330626][ T5787] ? kthread+0x3e2/0x540 [ 186.335062][ T5787] ? ret_from_fork+0x6d/0x90 [ 186.339853][ T5787] ? ret_from_fork_asm+0x1a/0x30 [ 186.345034][ T5787] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 186.351042][ T5787] ? kmsan_get_metadata+0x13e/0x1c0 [ 186.356436][ T5787] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 186.363025][ T5787] ? kmsan_get_metadata+0x13e/0x1c0 [ 186.368416][ T5787] ? kmsan_get_metadata+0x13e/0x1c0 [ 186.373827][ T5787] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 186.379845][ T5787] ? kmsan_get_metadata+0x13e/0x1c0 [ 186.385242][ T5787] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 186.391263][ T5787] ? kmsan_get_metadata+0x13e/0x1c0 [ 186.396667][ T5787] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 186.402681][ T5787] __msan_warning+0x95/0x120 [ 186.407515][ T5787] bch2_inode_v3_validate+0x481/0x5a0 [ 186.413125][ T5787] ? __pfx_bch2_inode_v3_validate+0x10/0x10 [ 186.419256][ T5787] bch2_bkey_val_validate+0x2b5/0x440 [ 186.424895][ T5787] validate_bset_keys+0x1531/0x2080 [ 186.430383][ T5787] validate_bset_for_write+0x142/0x290 [ 186.436097][ T5787] __bch2_btree_node_write+0x53df/0x6830 [ 186.441992][ T5787] ? kmsan_get_metadata+0x13e/0x1c0 [ 186.447445][ T5787] bch2_btree_node_write+0xa5/0x2e0 [ 186.452896][ T5787] __btree_node_flush+0x606/0x680 [ 186.458134][ T5787] ? __btree_node_flush+0xd3/0x680 [ 186.463466][ T5787] ? __pfx_bch2_btree_node_flush1+0x10/0x10 [ 186.469571][ T5787] bch2_btree_node_flush1+0x38/0x60 [ 186.474988][ T5787] journal_flush_pins+0xce6/0x1780 [ 186.480344][ T5787] __bch2_journal_reclaim+0xda8/0x1670 [ 186.486013][ T5787] ? __try_to_del_timer_sync+0x3d3/0x420 [ 186.491913][ T5787] bch2_journal_reclaim_thread+0x18e/0x760 [ 186.497951][ T5787] kthread+0x3e2/0x540 [ 186.502215][ T5787] ? __pfx_bch2_journal_reclaim_thread+0x10/0x10 [ 186.508793][ T5787] ? __pfx_kthread+0x10/0x10 [ 186.513574][ T5787] ret_from_fork+0x6d/0x90 [ 186.518201][ T5787] ? __pfx_kthread+0x10/0x10 [ 186.522981][ T5787] ret_from_fork_asm+0x1a/0x30 [ 186.527987][ T5787] [ 186.531521][ T5787] Kernel Offset: disabled [ 186.536264][ T5787] Rebooting in 86400 seconds..