./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1481033331 <...> Warning: Permanently added '10.128.0.77' (ED25519) to the list of known hosts. execve("./syz-executor1481033331", ["./syz-executor1481033331"], 0x7ffc21d55dc0 /* 10 vars */) = 0 brk(NULL) = 0x5555813fc000 brk(0x5555813fcd00) = 0x5555813fcd00 arch_prctl(ARCH_SET_FS, 0x5555813fc380) = 0 set_tid_address(0x5555813fc650) = 5779 set_robust_list(0x5555813fc660, 24) = 0 rseq(0x5555813fcca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1481033331", 4096) = 28 getrandom("\x3f\x75\xf4\xec\x87\x28\xc5\x72", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555813fcd00 brk(0x55558141dd00) = 0x55558141dd00 brk(0x55558141e000) = 0x55558141e000 mprotect(0x7f86edfe8000, 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=0x5555813fc650) = 5780 ./strace-static-x86_64: Process 5780 attached [pid 5780] set_robust_list(0x5555813fc660, 24) = 0 [pid 5780] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5780] setpgid(0, 0) = 0 [pid 5780] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5780] write(3, "1000", 4) = 4 [pid 5780] close(3) = 0 executing program [pid 5780] write(1, "executing program\n", 18) = 18 [pid 5780] memfd_create("syzkaller", 0) = 3 [pid 5780] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f86e5a00000 [pid 5780] 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 5780] munmap(0x7f86e5a00000, 138412032) = 0 [pid 5780] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5780] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5780] close(3) = 0 [pid 5780] close(4) = 0 [pid 5780] mkdir("./file1", 0777) = 0 [ 182.721465][ T5780] loop0: detected capacity change from 0 to 32768 [ 182.845945][ T5780] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,norecovery,reconstruct_alloc [ 182.860840][ T5780] bcachefs (loop0): recovering from clean shutdown, journal seq 10 [ 182.869381][ T5780] bcachefs (loop0): superblock requires following recovery passes to be run: [ 182.869381][ T5780] check_directory_structure [ 182.883895][ T5780] bcachefs (loop0): Version upgrade required: [ 182.883895][ T5780] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete [ 182.883895][ T5780] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.13: inode_has_child_snapshots [ 182.883895][ T5780] 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_nlinks,set_fs_needs_rebalance [ 182.956726][ T5780] bcachefs (loop0): dropping and reconstructing all alloc info [ 183.005481][ T5780] bcachefs (loop0): accounting_read... done [ 183.012375][ T5780] bcachefs (loop0): alloc_read... done [ 183.018315][ T5780] bcachefs (loop0): stripes_read... done [ 183.024231][ T5780] bcachefs (loop0): snapshots_read... done [pid 5780] mount("/dev/loop0", "./file1", "bcachefs", 0, "\x64\x61\x74\x61\x5f\x63\x68\x65\x3e\x5c\x06\x9b\x9a\x23\x14\xd7\x3b\x63\x6b\x73\x75\x6d\x3d\x63\x72\x63\x36\x34\x2c\x6a\x6f\x75\x72\x6e\x61\x6c\x5f\x74\x72\x61\x6e\x73\x61\x63\x74\x69\x6f\x6e\x5f\x6e\x61\x6d\x65\x73\x2c\x6e\x6f\x72\x65\x63\x6f\x76\x65\x72\x79\x2c\x73\x68\x61\x72\x64\x5f\x69\x6e\x6f\x05\x65\x5f\x6e\x75\x6d\x62\x65\x72\x73\x2c\x6a\x6f\x75\x72\x6e\x61\x6c\x5f\x74\x72\x61\x6e\x73\x61"...) = 0 [pid 5780] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5780] chdir("./file1") = 0 [pid 5780] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5780] ioctl(4, LOOP_CLR_FD) = 0 [pid 5780] close(4) = 0 [pid 5780] openat(AT_FDCWD, "cgroup.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [ 183.030834][ T5780] bcachefs (loop0): check_allocations... done [ 183.112485][ T5780] bcachefs (loop0): going read-write [ 183.129122][ T5780] bcachefs (loop0): done starting filesystem [pid 5780] exit_group(0) = ? [pid 5780] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5780, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=79 /* 0.79 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 5792 attached , child_tidptr=0x5555813fc650) = 5792 [pid 5792] set_robust_list(0x5555813fc660, 24) = 0 [pid 5792] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5792] setpgid(0, 0) = 0 [pid 5792] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5792] write(3, "1000", 4) = 4 [pid 5792] close(3) = 0 executing program [pid 5792] write(1, "executing program\n", 18) = 18 [pid 5792] memfd_create("syzkaller", 0) = 3 [pid 5792] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f86e5a00000 [ 183.618814][ T5789] ===================================================== [ 183.626218][ T5789] BUG: KMSAN: uninit-value in bch2_inode_v3_validate+0x481/0x5a0 [ 183.634393][ T5789] bch2_inode_v3_validate+0x481/0x5a0 [ 183.640073][ T5789] bch2_bkey_val_validate+0x2b5/0x440 [ 183.645673][ T5789] validate_bset_keys+0x1531/0x2080 [ 183.651222][ T5789] validate_bset_for_write+0x142/0x290 [ 183.656909][ T5789] __bch2_btree_node_write+0x53df/0x6830 [ 183.662911][ T5789] bch2_btree_node_write+0xa5/0x2e0 [ 183.668538][ T5789] __btree_node_flush+0x606/0x680 [ 183.673779][ T5789] bch2_btree_node_flush1+0x38/0x60 [ 183.679304][ T5789] journal_flush_pins+0xce6/0x1780 [ 183.684606][ T5789] __bch2_journal_reclaim+0xda8/0x1670 [ 183.690466][ T5789] bch2_journal_reclaim_thread+0x18e/0x760 [ 183.696477][ T5789] kthread+0x3e2/0x540 [ 183.700814][ T5789] ret_from_fork+0x6d/0x90 [ 183.705415][ T5789] ret_from_fork_asm+0x1a/0x30 [ 183.710522][ T5789] [ 183.712944][ T5789] Uninit was stored to memory at: [ 183.718350][ T5789] bch2_sort_keys_keep_unwritten_whiteouts+0x12d5/0x19d0 [ 183.725652][ T5789] __bch2_btree_node_write+0x3ae8/0x6830 [ 183.731813][ T5789] bch2_btree_node_write+0xa5/0x2e0 [ 183.737240][ T5789] __btree_node_flush+0x606/0x680 [ 183.742613][ T5789] bch2_btree_node_flush1+0x38/0x60 [ 183.748111][ T5789] journal_flush_pins+0xce6/0x1780 [ 183.753410][ T5789] __bch2_journal_reclaim+0xda8/0x1670 [ 183.759146][ T5789] bch2_journal_reclaim_thread+0x18e/0x760 [ 183.765143][ T5789] kthread+0x3e2/0x540 [pid 5792] 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 [ 183.769487][ T5789] ret_from_fork+0x6d/0x90 [ 183.774109][ T5789] ret_from_fork_asm+0x1a/0x30 [ 183.779171][ T5789] [ 183.781596][ T5789] Uninit was created at: [ 183.786108][ T5789] ___kmalloc_large_node+0x22c/0x370 [ 183.791737][ T5789] __kmalloc_large_node_noprof+0x3f/0x1e0 [ 183.797682][ T5789] __kmalloc_node_noprof+0xc96/0x1250 [ 183.803497][ T5789] __kvmalloc_node_noprof+0xc0/0x2d0 [ 183.809181][ T5789] btree_node_sort+0x78a/0x1d30 [pid 5792] munmap(0x7f86e5a00000, 138412032) = 0 [pid 5792] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5792] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5792] ioctl(4, LOOP_CLR_FD) = 0 [pid 5792] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5792] close(4) = 0 [ 183.817531][ T5789] bch2_btree_post_write_cleanup+0x1b0/0xf20 [ 183.823841][ T5789] bch2_btree_node_write+0x21c/0x2e0 [ 183.829472][ T5789] __btree_node_flush+0x606/0x680 [ 183.834729][ T5789] bch2_btree_node_flush0+0x35/0x60 [ 183.840231][ T5789] journal_flush_pins+0xce6/0x1780 [ 183.845543][ T5789] __bch2_journal_reclaim+0xda8/0x1670 [ 183.853332][ T5789] bch2_journal_reclaim_thread+0x18e/0x760 [ 183.859596][ T5789] kthread+0x3e2/0x540 [ 183.865901][ T5789] ret_from_fork+0x6d/0x90 [ 183.870754][ T5789] ret_from_fork_asm+0x1a/0x30 [ 183.876698][ T5789] [ 183.879298][ T5789] CPU: 1 UID: 0 PID: 5789 Comm: bch-reclaim/loo Not tainted 6.13.0-rc5-syzkaller-00006-g56e6a3499e14 #0 [ 183.890788][ T5789] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 183.901158][ T5789] ===================================================== [ 183.908334][ T5789] Disabling lock debugging due to kernel taint [ 183.914631][ T5789] Kernel panic - not syncing: kmsan.panic set ... [ 183.921207][ T5789] CPU: 1 UID: 0 PID: 5789 Comm: bch-reclaim/loo Tainted: G B 6.13.0-rc5-syzkaller-00006-g56e6a3499e14 #0 [ 183.934062][ T5789] Tainted: [B]=BAD_PAGE [ 183.938338][ T5789] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 183.948651][ T5789] Call Trace: [ 183.952060][ T5789] [ 183.955106][ T5789] dump_stack_lvl+0x216/0x2d0 [ 183.960021][ T5789] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 183.966030][ T5789] dump_stack+0x1e/0x24 [ 183.970426][ T5789] panic+0x4e2/0xcf0 [ 183.974563][ T5789] ? kmsan_get_metadata+0xd1/0x1c0 [ 183.979884][ T5789] kmsan_report+0x2c7/0x2d0 [ 183.984565][ T5789] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.989964][ T5789] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.995354][ T5789] ? __msan_warning+0x95/0x120 [ 184.000782][ T5789] ? bch2_inode_v3_validate+0x481/0x5a0 [ 184.006568][ T5789] ? bch2_bkey_val_validate+0x2b5/0x440 [ 184.012340][ T5789] ? validate_bset_keys+0x1531/0x2080 [ 184.017940][ T5789] ? validate_bset_for_write+0x142/0x290 [ 184.023797][ T5789] ? __bch2_btree_node_write+0x53df/0x6830 [ 184.029843][ T5789] ? bch2_btree_node_write+0xa5/0x2e0 [ 184.035438][ T5789] ? __btree_node_flush+0x606/0x680 [ 184.040846][ T5789] ? bch2_btree_node_flush1+0x38/0x60 [ 184.046416][ T5789] ? journal_flush_pins+0xce6/0x1780 [ 184.051982][ T5789] ? __bch2_journal_reclaim+0xda8/0x1670 [ 184.057804][ T5789] ? bch2_journal_reclaim_thread+0x18e/0x760 [ 184.063978][ T5789] ? kthread+0x3e2/0x540 [ 184.068411][ T5789] ? ret_from_fork+0x6d/0x90 [ 184.073207][ T5789] ? ret_from_fork_asm+0x1a/0x30 [ 184.078375][ T5789] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 184.084376][ T5789] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.089776][ T5789] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 184.096357][ T5789] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.101758][ T5789] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.107146][ T5789] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 184.113152][ T5789] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.118546][ T5789] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 184.124562][ T5789] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.129945][ T5789] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 184.135947][ T5789] __msan_warning+0x95/0x120 [ 184.140761][ T5789] bch2_inode_v3_validate+0x481/0x5a0 [ 184.146369][ T5789] ? __pfx_bch2_inode_v3_validate+0x10/0x10 [ 184.152491][ T5789] bch2_bkey_val_validate+0x2b5/0x440 [ 184.158115][ T5789] validate_bset_keys+0x1531/0x2080 [ 184.163597][ T5789] validate_bset_for_write+0x142/0x290 [ 184.169303][ T5789] __bch2_btree_node_write+0x53df/0x6830 [ 184.175182][ T5789] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 184.181195][ T5789] ? filter_irq_stacks+0x60/0x1a0 [ 184.186483][ T5789] bch2_btree_node_write+0xa5/0x2e0 [ 184.191929][ T5789] __btree_node_flush+0x606/0x680 [ 184.197154][ T5789] ? __btree_node_flush+0xd3/0x680 [ 184.202482][ T5789] ? __pfx_bch2_btree_node_flush1+0x10/0x10 [ 184.208605][ T5789] bch2_btree_node_flush1+0x38/0x60 [ 184.214008][ T5789] journal_flush_pins+0xce6/0x1780 [ 184.219349][ T5789] __bch2_journal_reclaim+0xda8/0x1670 [ 184.225016][ T5789] ? __try_to_del_timer_sync+0x3d3/0x420 [ 184.230994][ T5789] bch2_journal_reclaim_thread+0x18e/0x760 [ 184.237027][ T5789] kthread+0x3e2/0x540 [ 184.241627][ T5789] ? __pfx_bch2_journal_reclaim_thread+0x10/0x10 [ 184.248170][ T5789] ? __pfx_kthread+0x10/0x10 [ 184.252941][ T5789] ret_from_fork+0x6d/0x90 [ 184.257552][ T5789] ? __pfx_kthread+0x10/0x10 [ 184.262328][ T5789] ret_from_fork_asm+0x1a/0x30 [ 184.267341][ T5789] [ 184.270830][ T5789] Kernel Offset: disabled [ 184.275223][ T5789] Rebooting in 86400 seconds..