./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2238759275 <...> Warning: Permanently added '10.128.0.111' (ED25519) to the list of known hosts. execve("./syz-executor2238759275", ["./syz-executor2238759275"], 0x7ffdcee19bf0 /* 10 vars */) = 0 brk(NULL) = 0x55556c200000 brk(0x55556c200d00) = 0x55556c200d00 arch_prctl(ARCH_SET_FS, 0x55556c200380) = 0 set_tid_address(0x55556c200650) = 5775 set_robust_list(0x55556c200660, 24) = 0 rseq(0x55556c200ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2238759275", 4096) = 28 getrandom("\xe5\xfe\xe8\x8f\xdd\x0d\xa5\xbd", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556c200d00 brk(0x55556c221d00) = 0x55556c221d00 brk(0x55556c222000) = 0x55556c222000 mprotect(0x7faff6874000, 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=0x55556c200650) = 5776 ./strace-static-x86_64: Process 5776 attached [pid 5776] set_robust_list(0x55556c200660, 24) = 0 [pid 5776] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5776] setpgid(0, 0) = 0 [pid 5776] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5776] write(3, "1000", 4) = 4 executing program [pid 5776] close(3) = 0 [pid 5776] write(1, "executing program\n", 18) = 18 [pid 5776] prlimit64(0, RLIMIT_RTPRIO, {rlim_cur=8, rlim_max=16777355}, NULL) = 0 [pid 5776] sched_setscheduler(0, SCHED_FIFO, [7]) = 0 [pid 5776] memfd_create("syzkaller", 0) = 3 [pid 5776] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fafee200000 [pid 5776] 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 5776] munmap(0x7fafee200000, 138412032) = 0 [pid 5776] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5776] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5776] close(3) = 0 [pid 5776] close(4) = 0 [pid 5776] mkdir("./file1", 0777) = 0 [ 187.319878][ T5776] loop0: detected capacity change from 0 to 32768 [ 187.452595][ T5776] 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 [ 187.474814][ T5776] bcachefs (loop0): recovering from clean shutdown, journal seq 10 [ 187.484272][ T5776] bcachefs (loop0): Version upgrade required: [ 187.484272][ T5776] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete [ 187.484272][ T5776] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.13: inode_has_child_snapshots [ 187.484272][ T5776] 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 [ 187.558771][ T5776] bcachefs (loop0): dropping and reconstructing all alloc info [ 187.607464][ T5776] bcachefs (loop0): check_topology... done [ 187.613575][ T5776] bcachefs (loop0): accounting_read... done [ 187.620385][ T5776] bcachefs (loop0): alloc_read... done [ 187.626301][ T5776] bcachefs (loop0): stripes_read... done [ 187.632217][ T5776] bcachefs (loop0): snapshots_read... done [pid 5776] 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 5776] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5776] chdir("./file1") = 0 [pid 5776] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5776] ioctl(4, LOOP_CLR_FD) = 0 [pid 5776] close(4) = 0 [pid 5776] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5776] exit_group(0) = ? [ 187.638656][ T5776] bcachefs (loop0): check_allocations... done [ 187.719124][ T5776] bcachefs (loop0): going read-write [ 187.735746][ T5776] bcachefs (loop0): done starting filesystem [pid 5776] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5776, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=73 /* 0.73 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./strace-static-x86_64: Process 5789 attached , child_tidptr=0x55556c200650) = 5789 [pid 5789] set_robust_list(0x55556c200660, 24) = 0 [pid 5789] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5789] setpgid(0, 0) = 0 [pid 5789] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5789] write(3, "1000", 4) = 4 [pid 5789] close(3executing program ) = 0 [pid 5789] write(1, "executing program\n", 18) = 18 [pid 5789] prlimit64(0, RLIMIT_RTPRIO, {rlim_cur=8, rlim_max=16777355}, NULL) = 0 [pid 5789] sched_setscheduler(0, SCHED_FIFO, [7]) = 0 [pid 5789] memfd_create("syzkaller", 0) = 3 [pid 5789] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fafee200000 [ 188.215229][ T5786] ===================================================== [ 188.222565][ T5786] BUG: KMSAN: uninit-value in bch2_inode_v3_validate+0x481/0x5a0 [ 188.230711][ T5786] bch2_inode_v3_validate+0x481/0x5a0 [ 188.236392][ T5786] bch2_bkey_val_validate+0x2b5/0x440 [ 188.241982][ T5786] validate_bset_keys+0x1531/0x2080 [ 188.247583][ T5786] validate_bset_for_write+0x142/0x290 [ 188.253266][ T5786] __bch2_btree_node_write+0x53df/0x6830 [ 188.259286][ T5786] bch2_btree_node_write+0xa5/0x2e0 [ 188.264845][ T5786] __btree_node_flush+0x606/0x680 [ 188.270065][ T5786] bch2_btree_node_flush1+0x38/0x60 [ 188.275573][ T5786] journal_flush_pins+0xce6/0x1780 [ 188.280885][ T5786] __bch2_journal_reclaim+0xda8/0x1670 [ 188.286742][ T5786] bch2_journal_reclaim_thread+0x18e/0x760 [ 188.292749][ T5786] kthread+0x3e2/0x540 [ 188.297184][ T5786] ret_from_fork+0x6d/0x90 [ 188.301785][ T5786] ret_from_fork_asm+0x1a/0x30 [ 188.306942][ T5786] [ 188.309360][ T5786] Uninit was stored to memory at: [ 188.314750][ T5786] bch2_sort_keys_keep_unwritten_whiteouts+0x12d5/0x19d0 [ 188.322034][ T5786] __bch2_btree_node_write+0x3ae8/0x6830 [ 188.328041][ T5786] bch2_btree_node_write+0xa5/0x2e0 [ 188.333459][ T5786] __btree_node_flush+0x606/0x680 [ 188.338781][ T5786] bch2_btree_node_flush1+0x38/0x60 [ 188.344180][ T5786] journal_flush_pins+0xce6/0x1780 [ 188.349621][ T5786] __bch2_journal_reclaim+0xda8/0x1670 [ 188.355355][ T5786] bch2_journal_reclaim_thread+0x18e/0x760 [ 188.361355][ T5786] kthread+0x3e2/0x540 [pid 5789] 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 5789] munmap(0x7fafee200000, 138412032) = 0 [pid 5789] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5789] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5789] ioctl(4, LOOP_CLR_FD) = 0 [pid 5789] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [ 188.365778][ T5786] ret_from_fork+0x6d/0x90 [ 188.370383][ T5786] ret_from_fork_asm+0x1a/0x30 [ 188.375617][ T5786] [ 188.379433][ T5786] Uninit was created at: [ 188.384852][ T5786] ___kmalloc_large_node+0x22c/0x370 [ 188.390355][ T5786] __kmalloc_large_node_noprof+0x3f/0x1e0 [ 188.396487][ T5786] __kmalloc_node_noprof+0xc96/0x1250 [ 188.402079][ T5786] __kvmalloc_node_noprof+0xc0/0x2d0 [ 188.407660][ T5786] btree_node_sort+0x78a/0x1d30 [ 188.412721][ T5786] bch2_btree_post_write_cleanup+0x1b0/0xf20 [ 188.419104][ T5786] bch2_btree_node_write+0x21c/0x2e0 [ 188.424742][ T5786] __btree_node_flush+0x606/0x680 [ 188.429955][ T5786] bch2_btree_node_flush0+0x35/0x60 [ 188.435486][ T5786] journal_flush_pins+0xce6/0x1780 [ 188.440786][ T5786] __bch2_journal_reclaim+0xda8/0x1670 [ 188.446545][ T5786] bch2_journal_reclaim_thread+0x18e/0x760 [ 188.452538][ T5786] kthread+0x3e2/0x540 [ 188.456908][ T5786] ret_from_fork+0x6d/0x90 [ 188.461512][ T5786] ret_from_fork_asm+0x1a/0x30 [ 188.466575][ T5786] [ 188.469059][ T5786] CPU: 0 UID: 0 PID: 5786 Comm: bch-reclaim/loo Not tainted 6.13.0-rc7-syzkaller-00209-g9528d418de4d #0 [ 188.480528][ T5786] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 188.490857][ T5786] ===================================================== [ 188.498424][ T5786] Disabling lock debugging due to kernel taint [ 188.504788][ T5786] Kernel panic - not syncing: kmsan.panic set ... [ 188.511348][ T5786] CPU: 0 UID: 0 PID: 5786 Comm: bch-reclaim/loo Tainted: G B 6.13.0-rc7-syzkaller-00209-g9528d418de4d #0 [ 188.524161][ T5786] Tainted: [B]=BAD_PAGE [ 188.528423][ T5786] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 188.538638][ T5786] Call Trace: [ 188.542060][ T5786] [ 188.545099][ T5786] dump_stack_lvl+0x216/0x2d0 [ 188.549986][ T5786] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 188.556002][ T5786] dump_stack+0x1e/0x24 [ 188.560358][ T5786] panic+0x4e2/0xcf0 [ 188.564440][ T5786] ? kmsan_get_metadata+0xa1/0x1c0 [ 188.569742][ T5786] kmsan_report+0x2c7/0x2d0 [ 188.574407][ T5786] ? kmsan_get_metadata+0x13e/0x1c0 [ 188.579796][ T5786] ? kmsan_get_metadata+0x13e/0x1c0 [ 188.585178][ T5786] ? __msan_warning+0x95/0x120 [ 188.590162][ T5786] ? bch2_inode_v3_validate+0x481/0x5a0 [ 188.595920][ T5786] ? bch2_bkey_val_validate+0x2b5/0x440 [ 188.601693][ T5786] ? validate_bset_keys+0x1531/0x2080 [ 188.607286][ T5786] ? validate_bset_for_write+0x142/0x290 [ 188.613145][ T5786] ? __bch2_btree_node_write+0x53df/0x6830 [ 188.619183][ T5786] ? bch2_btree_node_write+0xa5/0x2e0 [ 188.624776][ T5786] ? __btree_node_flush+0x606/0x680 [ 188.630170][ T5786] ? bch2_btree_node_flush1+0x38/0x60 [ 188.635749][ T5786] ? journal_flush_pins+0xce6/0x1780 [ 188.641223][ T5786] ? __bch2_journal_reclaim+0xda8/0x1670 [ 188.647051][ T5786] ? bch2_journal_reclaim_thread+0x18e/0x760 [ 188.653227][ T5786] ? kthread+0x3e2/0x540 [ 188.657641][ T5786] ? ret_from_fork+0x6d/0x90 [ 188.662414][ T5786] ? ret_from_fork_asm+0x1a/0x30 [ 188.667571][ T5786] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 188.673569][ T5786] ? kmsan_get_metadata+0x13e/0x1c0 [ 188.678948][ T5786] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 188.685519][ T5786] ? kmsan_get_metadata+0x13e/0x1c0 [ 188.690908][ T5786] ? kmsan_get_metadata+0x13e/0x1c0 [ 188.696298][ T5786] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 188.702297][ T5786] ? kmsan_get_metadata+0x13e/0x1c0 [ 188.707678][ T5786] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 188.713678][ T5786] ? kmsan_get_metadata+0x13e/0x1c0 [ 188.719063][ T5786] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 188.725065][ T5786] __msan_warning+0x95/0x120 [ 188.729892][ T5786] bch2_inode_v3_validate+0x481/0x5a0 [ 188.735502][ T5786] ? __pfx_bch2_inode_v3_validate+0x10/0x10 [ 188.741618][ T5786] bch2_bkey_val_validate+0x2b5/0x440 [ 188.747231][ T5786] validate_bset_keys+0x1531/0x2080 [ 188.752703][ T5786] validate_bset_for_write+0x142/0x290 [ 188.758411][ T5786] __bch2_btree_node_write+0x53df/0x6830 [pid 5789] close(4) = 0 [pid 5789] close(3) = 0 [pid 5789] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5789] exit_group(0) = ? [pid 5789] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5789, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=88 /* 0.88 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 [ 188.764283][ T5786] ? __update_load_avg_se+0xbd1/0x11a0 [ 188.770021][ T5786] bch2_btree_node_write+0xa5/0x2e0 [ 188.775455][ T5786] __btree_node_flush+0x606/0x680 [ 188.780682][ T5786] ? __btree_node_flush+0xd3/0x680 [ 188.786013][ T5786] ? __pfx_bch2_btree_node_flush1+0x10/0x10 [ 188.792121][ T5786] bch2_btree_node_flush1+0x38/0x60 [ 188.797508][ T5786] journal_flush_pins+0xce6/0x1780 [ 188.802829][ T5786] __bch2_journal_reclaim+0xda8/0x1670 [ 188.808475][ T5786] ? __try_to_del_timer_sync+0x3d3/0x420 [ 188.814337][ T5786] bch2_journal_reclaim_thread+0x18e/0x760 [ 188.820349][ T5786] kthread+0x3e2/0x540 [ 188.824583][ T5786] ? __pfx_bch2_journal_reclaim_thread+0x10/0x10 [ 188.831109][ T5786] ? __pfx_kthread+0x10/0x10 [ 188.835861][ T5786] ret_from_fork+0x6d/0x90 [ 188.840457][ T5786] ? __pfx_kthread+0x10/0x10 [ 188.845216][ T5786] ret_from_fork_asm+0x1a/0x30 [ 188.850207][ T5786] [ 188.853651][ T5786] Kernel Offset: disabled [ 188.858039][ T5786] Rebooting in 86400 seconds..