./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1926388235 <...> Warning: Permanently added '10.128.1.34' (ED25519) to the list of known hosts. execve("./syz-executor1926388235", ["./syz-executor1926388235"], 0x7ffd99903140 /* 10 vars */) = 0 brk(NULL) = 0x555569d4c000 brk(0x555569d4cd00) = 0x555569d4cd00 arch_prctl(ARCH_SET_FS, 0x555569d4c380) = 0 set_tid_address(0x555569d4c650) = 5782 set_robust_list(0x555569d4c660, 24) = 0 rseq(0x555569d4cca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1926388235", 4096) = 28 getrandom("\x8f\xe4\x5b\x3d\xea\x44\x7b\x88", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555569d4cd00 brk(0x555569d6dd00) = 0x555569d6dd00 brk(0x555569d6e000) = 0x555569d6e000 mprotect(0x7f09b8733000, 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=0x555569d4c650) = 5783 ./strace-static-x86_64: Process 5783 attached [pid 5783] set_robust_list(0x555569d4c660, 24) = 0 [pid 5783] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5783] setpgid(0, 0) = 0 [pid 5783] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5783] write(3, "1000", 4) = 4 [pid 5783] close(3) = 0 executing program [pid 5783] write(1, "executing program\n", 18) = 18 [pid 5783] memfd_create("syzkaller", 0) = 3 [pid 5783] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f09b0200000 [pid 5783] 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 5783] munmap(0x7f09b0200000, 138412032) = 0 [pid 5783] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5783] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5783] close(3) = 0 [pid 5783] close(4) = 0 [pid 5783] mkdir("./file1", 0777) = 0 [ 180.992545][ T5783] loop0: detected capacity change from 0 to 32768 [ 181.136781][ T5783] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=errors=continue,metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names [ 181.153722][ T5783] bcachefs (loop0): initializing new filesystem [ 181.165360][ T5783] bcachefs (loop0): going read-write [ 181.174117][ T5783] bcachefs (loop0): marking superblocks [ 181.200860][ T5783] ===================================================== [ 181.207998][ T5783] BUG: KMSAN: uninit-value in rw_aux_tree_set+0x4d2/0x580 [ 181.215404][ T5783] rw_aux_tree_set+0x4d2/0x580 [ 181.220325][ T5783] rw_aux_tree_insert_entry+0x6c3/0x970 [ 181.226103][ T5783] bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 181.232169][ T5783] bch2_bset_insert+0x1621/0x19f0 [ 181.237284][ T5783] bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 181.243312][ T5783] bch2_btree_insert_key_leaf+0x276/0x1050 [ 181.249304][ T5783] __bch2_trans_commit+0xaf5e/0xd190 [ 181.254857][ T5783] bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 181.261400][ T5783] bch2_trans_mark_dev_sb+0x858/0x10e0 [ 181.266964][ T5783] bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 181.273212][ T5783] bch2_trans_mark_dev_sbs+0x32/0x40 [ 181.278691][ T5783] bch2_fs_initialize+0x19bd/0x35d0 [ 181.284169][ T5783] bch2_fs_start+0x77d/0xbd0 [ 181.288980][ T5783] bch2_fs_get_tree+0x13ea/0x22d0 [ 181.294276][ T5783] vfs_get_tree+0xb1/0x5a0 [ 181.298894][ T5783] do_new_mount+0x71f/0x15e0 [ 181.303685][ T5783] path_mount+0x742/0x1f10 [ 181.308296][ T5783] __se_sys_mount+0x722/0x810 [ 181.313310][ T5783] __x64_sys_mount+0xe4/0x150 [ 181.318154][ T5783] x64_sys_call+0x39bf/0x3c30 [ 181.323121][ T5783] do_syscall_64+0xcd/0x1e0 [ 181.327788][ T5783] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 181.333960][ T5783] [ 181.336363][ T5783] Uninit was created at: [ 181.340956][ T5783] ___kmalloc_large_node+0x22c/0x370 [ 181.346431][ T5783] __kmalloc_large_node_noprof+0x3f/0x1e0 [ 181.353675][ T5783] __kmalloc_node_noprof+0xc96/0x1250 [ 181.359172][ T5783] __kvmalloc_node_noprof+0xc0/0x2d0 [ 181.364829][ T5783] __bch2_btree_node_mem_alloc+0x2be/0xa80 [ 181.370919][ T5783] bch2_fs_btree_cache_init+0x4e4/0xb50 [ 181.376574][ T5783] bch2_fs_open+0x4d3a/0x5b40 [ 181.381589][ T5783] bch2_fs_get_tree+0x983/0x22d0 [ 181.386687][ T5783] vfs_get_tree+0xb1/0x5a0 [ 181.391382][ T5783] do_new_mount+0x71f/0x15e0 [ 181.396118][ T5783] path_mount+0x742/0x1f10 [ 181.400797][ T5783] __se_sys_mount+0x722/0x810 [ 181.405620][ T5783] __x64_sys_mount+0xe4/0x150 [ 181.410417][ T5783] x64_sys_call+0x39bf/0x3c30 [ 181.415456][ T5783] do_syscall_64+0xcd/0x1e0 [ 181.420050][ T5783] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 181.426174][ T5783] [ 181.428631][ T5783] CPU: 1 UID: 0 PID: 5783 Comm: syz-executor192 Not tainted 6.13.0-rc5-syzkaller-00012-g0bc21e701a6f #0 [ 181.440208][ T5783] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 181.450659][ T5783] ===================================================== [ 181.457681][ T5783] Disabling lock debugging due to kernel taint [ 181.464012][ T5783] Kernel panic - not syncing: kmsan.panic set ... [ 181.470607][ T5783] CPU: 1 UID: 0 PID: 5783 Comm: syz-executor192 Tainted: G B 6.13.0-rc5-syzkaller-00012-g0bc21e701a6f #0 [ 181.483321][ T5783] Tainted: [B]=BAD_PAGE [ 181.487528][ T5783] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 181.497665][ T5783] Call Trace: [ 181.501033][ T5783] [ 181.504051][ T5783] dump_stack_lvl+0x216/0x2d0 [ 181.508843][ T5783] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 181.514755][ T5783] dump_stack+0x1e/0x24 [ 181.519018][ T5783] panic+0x4e2/0xcf0 [ 181.523056][ T5783] ? kmsan_get_metadata+0xd1/0x1c0 [ 181.528337][ T5783] kmsan_report+0x2c7/0x2d0 [ 181.532938][ T5783] ? _raw_spin_unlock_irqrestore+0x3f/0x60 [ 181.538875][ T5783] ? __msan_warning+0x95/0x120 [ 181.543762][ T5783] ? rw_aux_tree_set+0x4d2/0x580 [ 181.548798][ T5783] ? rw_aux_tree_insert_entry+0x6c3/0x970 [ 181.554633][ T5783] ? bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 181.560713][ T5783] ? bch2_bset_insert+0x1621/0x19f0 [ 181.566004][ T5783] ? bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 181.572095][ T5783] ? bch2_btree_insert_key_leaf+0x276/0x1050 [ 181.578191][ T5783] ? __bch2_trans_commit+0xaf5e/0xd190 [ 181.583759][ T5783] ? bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 181.590320][ T5783] ? bch2_trans_mark_dev_sb+0x858/0x10e0 [ 181.596137][ T5783] ? bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 181.602433][ T5783] ? bch2_trans_mark_dev_sbs+0x32/0x40 [ 181.608066][ T5783] ? bch2_fs_initialize+0x19bd/0x35d0 [ 181.613571][ T5783] ? bch2_fs_start+0x77d/0xbd0 [ 181.618529][ T5783] ? bch2_fs_get_tree+0x13ea/0x22d0 [ 181.623828][ T5783] ? vfs_get_tree+0xb1/0x5a0 [ 181.628543][ T5783] ? do_new_mount+0x71f/0x15e0 [ 181.633397][ T5783] ? path_mount+0x742/0x1f10 [ 181.638107][ T5783] ? __se_sys_mount+0x722/0x810 [ 181.643049][ T5783] ? __x64_sys_mount+0xe4/0x150 [ 181.648013][ T5783] ? x64_sys_call+0x39bf/0x3c30 [ 181.653060][ T5783] ? do_syscall_64+0xcd/0x1e0 [ 181.657824][ T5783] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 181.664016][ T5783] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 181.669957][ T5783] ? filter_irq_stacks+0x164/0x1a0 [ 181.675264][ T5783] ? stack_depot_save_flags+0x2c/0x750 [ 181.680840][ T5783] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.686135][ T5783] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 181.692593][ T5783] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.697930][ T5783] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 181.703838][ T5783] __msan_warning+0x95/0x120 [ 181.708585][ T5783] rw_aux_tree_set+0x4d2/0x580 [ 181.713445][ T5783] ? bset_aux_tree_verify+0x44d/0x4a0 [ 181.718919][ T5783] rw_aux_tree_insert_entry+0x6c3/0x970 [ 181.724582][ T5783] bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 181.730517][ T5783] ? bch2_bkey_pack_key+0x1745/0x1860 [ 181.736025][ T5783] bch2_bset_insert+0x1621/0x19f0 [ 181.741166][ T5783] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.746478][ T5783] bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 181.752427][ T5783] ? __msan_memcpy+0x108/0x1c0 [ 181.757338][ T5783] bch2_btree_insert_key_leaf+0x276/0x1050 [ 181.763259][ T5783] ? irqentry_enter+0x37/0x60 [ 181.768082][ T5783] __bch2_trans_commit+0xaf5e/0xd190 [ 181.773531][ T5783] bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 181.779900][ T5783] ? bch2_trans_start_alloc_update_noupdate+0x179/0x12f0 [ 181.787056][ T5783] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.792364][ T5783] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 181.798283][ T5783] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.803582][ T5783] ? kmsan_internal_set_shadow_origin+0x60/0x100 [ 181.810049][ T5783] bch2_trans_mark_dev_sb+0x858/0x10e0 [ 181.815682][ T5783] bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 181.821814][ T5783] bch2_trans_mark_dev_sbs+0x32/0x40 [ 181.827210][ T5783] bch2_fs_initialize+0x19bd/0x35d0 [ 181.832518][ T5783] ? kmsan_internal_poison_memory+0x49/0x90 [ 181.838551][ T5783] ? kmsan_slab_free+0xd0/0x140 [ 181.843521][ T5783] ? kfree+0x240/0xdb0 [ 181.847691][ T5783] ? bch2_printbuf_exit+0x9b/0xd0 [ 181.852832][ T5783] ? print_mount_opts+0x4ca/0x4f0 [ 181.857978][ T5783] ? bch2_fs_start+0x59/0xbd0 [ 181.862792][ T5783] ? bch2_fs_get_tree+0x13ea/0x22d0 [ 181.868152][ T5783] ? vfs_get_tree+0xb1/0x5a0 [ 181.872883][ T5783] ? do_new_mount+0x71f/0x15e0 [ 181.877737][ T5783] ? path_mount+0x742/0x1f10 [ 181.882448][ T5783] ? __se_sys_mount+0x722/0x810 [ 181.887387][ T5783] ? __x64_sys_mount+0xe4/0x150 [ 181.892332][ T5783] ? x64_sys_call+0x39bf/0x3c30 [ 181.897336][ T5783] ? do_syscall_64+0xcd/0x1e0 [ 181.902160][ T5783] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 181.908387][ T5783] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.913740][ T5783] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 181.919669][ T5783] ? kfree+0x1a7/0xdb0 [ 181.923913][ T5783] ? filter_irq_stacks+0x60/0x1a0 [ 181.929048][ T5783] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.934344][ T5783] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.939639][ T5783] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 181.945547][ T5783] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.950839][ T5783] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.956139][ T5783] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 181.962051][ T5783] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.967354][ T5783] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 181.973817][ T5783] ? llist_reverse_order+0x102/0x130 [ 181.979221][ T5783] ? kmsan_internal_unpoison_memory+0x14/0x20 [ 181.985434][ T5783] ? __closure_wake_up+0x16a/0x180 [ 181.990662][ T5783] bch2_fs_start+0x77d/0xbd0 [ 181.995387][ T5783] bch2_fs_get_tree+0x13ea/0x22d0 [ 182.000587][ T5783] vfs_get_tree+0xb1/0x5a0 [ 182.005147][ T5783] ? mount_capable+0x97/0x120 [ 182.009929][ T5783] do_new_mount+0x71f/0x15e0 [ 182.014611][ T5783] ? kmsan_get_metadata+0x13e/0x1c0 [ 182.019916][ T5783] path_mount+0x742/0x1f10 [ 182.024463][ T5783] ? user_path_at+0x374/0x3e0 [ 182.029258][ T5783] __se_sys_mount+0x722/0x810 [ 182.034068][ T5783] ? ptrace_notify+0x263/0x320 [ 182.039031][ T5783] __x64_sys_mount+0xe4/0x150 [ 182.043817][ T5783] x64_sys_call+0x39bf/0x3c30 [ 182.048622][ T5783] do_syscall_64+0xcd/0x1e0 [ 182.053252][ T5783] ? clear_bhb_loop+0x25/0x80 [ 182.058060][ T5783] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 182.064084][ T5783] RIP: 0033:0x7f09b86bbdea [ 182.068583][ T5783] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 182.088316][ T5783] RSP: 002b:00007fffe7b3ba38 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 182.096855][ T5783] RAX: ffffffffffffffda RBX: 00007fffe7b3ba50 RCX: 00007f09b86bbdea [ 182.104918][ T5783] RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 00007fffe7b3ba50 [ 182.113003][ T5783] RBP: 0000000000000004 R08: 00007fffe7b3ba90 R09: 00000000000059d0 [ 182.121107][ T5783] R10: 0000000002000012 R11: 0000000000000282 R12: 0000000002000012 [ 182.129159][ T5783] R13: 00007fffe7b3ba90 R14: 0000000000000003 R15: 0000000001000000 [ 182.137249][ T5783] [ 182.140634][ T5783] Kernel Offset: disabled [ 182.145062][ T5783] Rebooting in 86400 seconds..