./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1080447469 <...> Warning: Permanently added '10.128.1.121' (ED25519) to the list of known hosts. execve("./syz-executor1080447469", ["./syz-executor1080447469"], 0x7ffc282ebfe0 /* 10 vars */) = 0 brk(NULL) = 0x55555c028000 brk(0x55555c028d00) = 0x55555c028d00 arch_prctl(ARCH_SET_FS, 0x55555c028380) = 0 set_tid_address(0x55555c028650) = 5798 set_robust_list(0x55555c028660, 24) = 0 rseq(0x55555c028ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1080447469", 4096) = 28 getrandom("\xf2\x92\xb8\x3f\xc4\x36\x1b\x23", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555c028d00 brk(0x55555c049d00) = 0x55555c049d00 brk(0x55555c04a000) = 0x55555c04a000 mprotect(0x7f5dcd142000, 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=0x55555c028650) = 5799 ./strace-static-x86_64: Process 5799 attached [pid 5799] set_robust_list(0x55555c028660, 24) = 0 [pid 5799] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5799] setpgid(0, 0) = 0 [pid 5799] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5799] write(3, "1000", 4) = 4 [pid 5799] close(3executing program ) = 0 [pid 5799] write(1, "executing program\n", 18) = 18 [pid 5799] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 3 [pid 5799] memfd_create("syzkaller", 0) = 4 [pid 5799] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5dc4c00000 [pid 5799] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5799] munmap(0x7f5dc4c00000, 138412032) = 0 [pid 5799] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 5 [pid 5799] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 5799] close(4) = 0 [pid 5799] close(5) = 0 [pid 5799] mkdir("./file1", 0777) = 0 [ 183.352832][ T5799] loop0: detected capacity change from 0 to 32768 [ 183.487662][ T5799] 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 [ 183.509797][ T5799] bcachefs (loop0): recovering from clean shutdown, journal seq 10 [ 183.519650][ T5799] bcachefs (loop0): Version upgrade required: [ 183.519650][ T5799] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete [ 183.519650][ T5799] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.13: inode_has_child_snapshots [ 183.519650][ T5799] 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 [ 183.595174][ T5799] bcachefs (loop0): dropping and reconstructing all alloc info [ 183.643515][ T5799] bcachefs (loop0): check_topology... done [ 183.649700][ T5799] bcachefs (loop0): accounting_read... done [ 183.657009][ T5799] bcachefs (loop0): alloc_read... done [ 183.662953][ T5799] bcachefs (loop0): stripes_read... done [ 183.669138][ T5799] bcachefs (loop0): snapshots_read... done [pid 5799] 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 5799] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 4 [pid 5799] chdir("./file1") = 0 [pid 5799] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 5 [pid 5799] ioctl(5, LOOP_CLR_FD) = 0 [pid 5799] close(5) = 0 [ 183.675746][ T5799] bcachefs (loop0): check_allocations... done [ 183.758363][ T5799] bcachefs (loop0): going read-write [ 183.775206][ T5799] bcachefs (loop0): done starting filesystem [pid 5799] creat("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 5 [pid 5799] exit_group(0) = ? [pid 5799] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5799, 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=0x55555c028650) = 5811 ./strace-static-x86_64: Process 5811 attached [pid 5811] set_robust_list(0x55555c028660, 24) = 0 [pid 5811] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5811] setpgid(0, 0) = 0 [pid 5811] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 5811] write(3, "1000", 4) = 4 [pid 5811] close(3) = 0 [pid 5811] write(1, "executing program\n", 18) = 18 [pid 5811] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 3 [pid 5811] memfd_create("syzkaller", 0) = 4 [pid 5811] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5dc4c00000 [ 184.144026][ T5808] ===================================================== [ 184.151329][ T5808] BUG: KMSAN: uninit-value in bch2_inode_v3_validate+0x481/0x5a0 [ 184.159725][ T5808] bch2_inode_v3_validate+0x481/0x5a0 [ 184.165447][ T5808] bch2_bkey_val_validate+0x2b5/0x440 [ 184.171035][ T5808] validate_bset_keys+0x1531/0x2080 [ 184.176513][ T5808] validate_bset_for_write+0x142/0x290 [ 184.182195][ T5808] __bch2_btree_node_write+0x53df/0x6830 [ 184.188296][ T5808] bch2_btree_node_write+0xa5/0x2e0 [ 184.193761][ T5808] __btree_node_flush+0x606/0x680 [ 184.199018][ T5808] bch2_btree_node_flush1+0x38/0x60 [ 184.204565][ T5808] journal_flush_pins+0xce6/0x1780 [ 184.209891][ T5808] __bch2_journal_reclaim+0xda8/0x1670 [ 184.215664][ T5808] bch2_journal_reclaim_thread+0x18e/0x760 [ 184.221702][ T5808] kthread+0x3e2/0x540 [ 184.226060][ T5808] ret_from_fork+0x6d/0x90 [ 184.230659][ T5808] ret_from_fork_asm+0x1a/0x30 [ 184.235722][ T5808] [ 184.238149][ T5808] Uninit was stored to memory at: [ 184.243704][ T5808] bch2_sort_keys_keep_unwritten_whiteouts+0x12d5/0x19d0 [ 184.250978][ T5808] __bch2_btree_node_write+0x3ae8/0x6830 [ 184.256988][ T5808] bch2_btree_node_write+0xa5/0x2e0 [ 184.262400][ T5808] __btree_node_flush+0x606/0x680 [ 184.267893][ T5808] bch2_btree_node_flush1+0x38/0x60 [ 184.273448][ T5808] journal_flush_pins+0xce6/0x1780 [ 184.278776][ T5808] __bch2_journal_reclaim+0xda8/0x1670 [ 184.284544][ T5808] bch2_journal_reclaim_thread+0x18e/0x760 [ 184.290580][ T5808] kthread+0x3e2/0x540 [ 184.294999][ T5808] ret_from_fork+0x6d/0x90 [ 184.299605][ T5808] ret_from_fork_asm+0x1a/0x30 [ 184.304826][ T5808] [ 184.307246][ T5808] Uninit was created at: [ 184.311747][ T5808] ___kmalloc_large_node+0x22c/0x370 [ 184.317320][ T5808] __kmalloc_large_node_noprof+0x3f/0x1e0 [ 184.323421][ T5808] __kmalloc_node_noprof+0xc96/0x1250 [ 184.329006][ T5808] __kvmalloc_node_noprof+0xc0/0x2d0 [ 184.334721][ T5808] btree_node_sort+0x78a/0x1d30 [ 184.339771][ T5808] bch2_btree_post_write_cleanup+0x1b0/0xf20 [ 184.346357][ T5808] bch2_btree_node_write+0x21c/0x2e0 [ 184.351854][ T5808] __btree_node_flush+0x606/0x680 [ 184.357286][ T5808] bch2_btree_node_flush0+0x35/0x60 [ 184.362726][ T5808] journal_flush_pins+0xce6/0x1780 [ 184.368289][ T5808] __bch2_journal_reclaim+0xda8/0x1670 [ 184.374036][ T5808] bch2_journal_reclaim_thread+0x18e/0x760 [ 184.380157][ T5808] kthread+0x3e2/0x540 [ 184.384585][ T5808] ret_from_fork+0x6d/0x90 [ 184.389188][ T5808] ret_from_fork_asm+0x1a/0x30 [ 184.394301][ T5808] [ 184.396763][ T5808] CPU: 0 UID: 0 PID: 5808 Comm: bch-reclaim/loo Not tainted 6.12.0-syzkaller-09567-g7eef7e306d3c #0 [ 184.407910][ T5808] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 184.418204][ T5808] ===================================================== [ 184.425426][ T5808] Disabling lock debugging due to kernel taint [ 184.431789][ T5808] Kernel panic - not syncing: kmsan.panic set ... [ 184.438357][ T5808] CPU: 0 UID: 0 PID: 5808 Comm: bch-reclaim/loo Tainted: G B 6.12.0-syzkaller-09567-g7eef7e306d3c #0 [ 184.450835][ T5808] Tainted: [B]=BAD_PAGE [ 184.455141][ T5808] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 184.465373][ T5808] Call Trace: [ 184.468815][ T5808] [ 184.471898][ T5808] dump_stack_lvl+0x216/0x2d0 [ 184.476828][ T5808] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 184.482915][ T5808] dump_stack+0x1e/0x30 [ 184.487290][ T5808] panic+0x4e2/0xcf0 [pid 5811] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 [ 184.491401][ T5808] ? kmsan_get_metadata+0x51/0x1c0 [ 184.496774][ T5808] kmsan_report+0x2c7/0x2d0 [ 184.501954][ T5808] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.507395][ T5808] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.512838][ T5808] ? __msan_warning+0x95/0x120 [ 184.517849][ T5808] ? bch2_inode_v3_validate+0x481/0x5a0 [ 184.523601][ T5808] ? bch2_bkey_val_validate+0x2b5/0x440 [ 184.529363][ T5808] ? validate_bset_keys+0x1531/0x2080 [ 184.535028][ T5808] ? validate_bset_for_write+0x142/0x290 [pid 5811] munmap(0x7f5dc4c00000, 138412032) = 0 [pid 5811] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 5 [pid 5811] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 5811] ioctl(5, LOOP_CLR_FD) = 0 [pid 5811] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 5811] close(5) = 0 [ 184.540892][ T5808] ? __bch2_btree_node_write+0x53df/0x6830 [ 184.547102][ T5808] ? bch2_btree_node_write+0xa5/0x2e0 [ 184.552701][ T5808] ? __btree_node_flush+0x606/0x680 [ 184.558146][ T5808] ? bch2_btree_node_flush1+0x38/0x60 [ 184.563762][ T5808] ? journal_flush_pins+0xce6/0x1780 [ 184.569283][ T5808] ? __bch2_journal_reclaim+0xda8/0x1670 [ 184.575104][ T5808] ? bch2_journal_reclaim_thread+0x18e/0x760 [ 184.581767][ T5808] ? kthread+0x3e2/0x540 [ 184.586202][ T5808] ? ret_from_fork+0x6d/0x90 [ 184.590982][ T5808] ? ret_from_fork_asm+0x1a/0x30 [ 184.596140][ T5808] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 184.602205][ T5808] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.607659][ T5808] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 184.614238][ T5808] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.619670][ T5808] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.625111][ T5808] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 184.631182][ T5808] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.636639][ T5808] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 184.642719][ T5808] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.648190][ T5808] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 184.654277][ T5808] __msan_warning+0x95/0x120 [ 184.659251][ T5808] bch2_inode_v3_validate+0x481/0x5a0 [ 184.664851][ T5808] ? __pfx_bch2_inode_v3_validate+0x10/0x10 [ 184.670970][ T5808] bch2_bkey_val_validate+0x2b5/0x440 [ 184.676575][ T5808] validate_bset_keys+0x1531/0x2080 [ 184.682046][ T5808] validate_bset_for_write+0x142/0x290 [ 184.687727][ T5808] __bch2_btree_node_write+0x53df/0x6830 [ 184.693582][ T5808] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.699098][ T5808] bch2_btree_node_write+0xa5/0x2e0 [ 184.704530][ T5808] __btree_node_flush+0x606/0x680 [ 184.709816][ T5808] ? __btree_node_flush+0xd3/0x680 [ 184.715224][ T5808] ? __pfx_bch2_btree_node_flush1+0x10/0x10 [ 184.721373][ T5808] bch2_btree_node_flush1+0x38/0x60 [ 184.726867][ T5808] journal_flush_pins+0xce6/0x1780 [ 184.732267][ T5808] __bch2_journal_reclaim+0xda8/0x1670 [ 184.737989][ T5808] ? __try_to_del_timer_sync+0x3d3/0x420 [ 184.743927][ T5808] bch2_journal_reclaim_thread+0x18e/0x760 [ 184.750358][ T5808] kthread+0x3e2/0x540 [ 184.754626][ T5808] ? __pfx_bch2_journal_reclaim_thread+0x10/0x10 [ 184.761345][ T5808] ? __pfx_kthread+0x10/0x10 [ 184.766130][ T5808] ret_from_fork+0x6d/0x90 [ 184.770753][ T5808] ? __pfx_kthread+0x10/0x10 [ 184.775548][ T5808] ret_from_fork_asm+0x1a/0x30 [ 184.780644][ T5808] [ 184.784132][ T5808] Kernel Offset: disabled [ 184.788534][ T5808] Rebooting in 86400 seconds..