./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1198488783 <...> Warning: Permanently added '10.128.1.48' (ED25519) to the list of known hosts. execve("./syz-executor1198488783", ["./syz-executor1198488783"], 0x7ffeeeeb14e0 /* 10 vars */) = 0 brk(NULL) = 0x55555d4df000 brk(0x55555d4dfd00) = 0x55555d4dfd00 arch_prctl(ARCH_SET_FS, 0x55555d4df380) = 0 set_tid_address(0x55555d4df650) = 5779 set_robust_list(0x55555d4df660, 24) = 0 rseq(0x55555d4dfca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1198488783", 4096) = 28 getrandom("\xe3\x9c\x8a\x2d\x89\x00\x8d\xfc", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555d4dfd00 brk(0x55555d500d00) = 0x55555d500d00 brk(0x55555d501000) = 0x55555d501000 mprotect(0x7fbe8331b000, 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=0x55555d4df650) = 5780 ./strace-static-x86_64: Process 5780 attached [pid 5780] set_robust_list(0x55555d4df660, 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 executing program [pid 5780] close(3) = 0 [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) = 0x7fbe7ae00000 [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(0x7fbe7ae00000, 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 [ 179.798139][ T5780] loop0: detected capacity change from 0 to 32768 [ 179.913201][ T5780] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=errors=continue,metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names [ 179.930257][ T5780] bcachefs (loop0): initializing new filesystem [ 179.945740][ T5780] bcachefs (loop0): going read-write [ 179.958829][ T5780] bcachefs (loop0): marking superblocks [ 179.990233][ T5780] ===================================================== [ 179.997687][ T5780] BUG: KMSAN: uninit-value in rw_aux_tree_set+0x4d2/0x580 [ 180.005326][ T5780] rw_aux_tree_set+0x4d2/0x580 [ 180.010273][ T5780] rw_aux_tree_insert_entry+0x6c3/0x970 [ 180.016154][ T5780] bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 180.022162][ T5780] bch2_bset_insert+0x1621/0x19f0 [ 180.027454][ T5780] bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 180.033435][ T5780] bch2_btree_insert_key_leaf+0x276/0x1050 [ 180.039492][ T5780] __bch2_trans_commit+0xaf5e/0xd190 [ 180.045042][ T5780] bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 180.051439][ T5780] bch2_trans_mark_dev_sb+0x858/0x10e0 [ 180.057206][ T5780] bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 180.063375][ T5780] bch2_trans_mark_dev_sbs+0x32/0x40 [ 180.068937][ T5780] bch2_fs_initialize+0x19bd/0x35d0 [ 180.074306][ T5780] bch2_fs_start+0x77d/0xbd0 [ 180.079211][ T5780] bch2_fs_get_tree+0x13ea/0x22d0 [ 180.084401][ T5780] vfs_get_tree+0xb1/0x5a0 [ 180.089176][ T5780] do_new_mount+0x71f/0x15e0 [ 180.093933][ T5780] path_mount+0x742/0x1f10 [ 180.098561][ T5780] __se_sys_mount+0x722/0x810 [ 180.103392][ T5780] __x64_sys_mount+0xe4/0x150 [ 180.108338][ T5780] x64_sys_call+0x39bf/0x3c30 [ 180.113223][ T5780] do_syscall_64+0xcd/0x1e0 [ 180.118028][ T5780] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 180.124234][ T5780] [ 180.128198][ T5780] Uninit was created at: [ 180.132612][ T5780] ___kmalloc_large_node+0x22c/0x370 [ 180.138205][ T5780] __kmalloc_large_node_noprof+0x3f/0x1e0 [ 180.144139][ T5780] __kmalloc_node_noprof+0xc96/0x1250 [ 180.149909][ T5780] __kvmalloc_node_noprof+0xc0/0x2d0 [ 180.155455][ T5780] __bch2_btree_node_mem_alloc+0x2be/0xa80 [ 180.161378][ T5780] bch2_fs_btree_cache_init+0x4e4/0xb50 [ 180.167207][ T5780] bch2_fs_open+0x4d3a/0x5b40 [ 180.172045][ T5780] bch2_fs_get_tree+0x983/0x22d0 [ 180.177232][ T5780] vfs_get_tree+0xb1/0x5a0 [ 180.181859][ T5780] do_new_mount+0x71f/0x15e0 [ 180.187010][ T5780] path_mount+0x742/0x1f10 [ 180.191567][ T5780] __se_sys_mount+0x722/0x810 [ 180.196549][ T5780] __x64_sys_mount+0xe4/0x150 [ 180.201374][ T5780] x64_sys_call+0x39bf/0x3c30 [ 180.206412][ T5780] do_syscall_64+0xcd/0x1e0 [ 180.211066][ T5780] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 180.217232][ T5780] [ 180.219663][ T5780] CPU: 0 UID: 0 PID: 5780 Comm: syz-executor119 Not tainted 6.13.0-rc6-syzkaller-00038-g09a0fa92e5b4 #0 [ 180.231062][ T5780] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 180.241331][ T5780] ===================================================== [ 180.248475][ T5780] Disabling lock debugging due to kernel taint [ 180.254938][ T5780] Kernel panic - not syncing: kmsan.panic set ... [ 180.261473][ T5780] CPU: 0 UID: 0 PID: 5780 Comm: syz-executor119 Tainted: G B 6.13.0-rc6-syzkaller-00038-g09a0fa92e5b4 #0 [ 180.274293][ T5780] Tainted: [B]=BAD_PAGE [ 180.278524][ T5780] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 180.288687][ T5780] Call Trace: [ 180.292032][ T5780] [ 180.295039][ T5780] dump_stack_lvl+0x216/0x2d0 [ 180.299857][ T5780] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 180.305781][ T5780] dump_stack+0x1e/0x24 [ 180.310056][ T5780] panic+0x4e2/0xcf0 [ 180.314064][ T5780] ? kmsan_get_metadata+0x81/0x1c0 [ 180.319333][ T5780] kmsan_report+0x2c7/0x2d0 [ 180.323991][ T5780] ? _raw_spin_unlock_irqrestore+0x3f/0x60 [ 180.329961][ T5780] ? __msan_warning+0x95/0x120 [ 180.334919][ T5780] ? rw_aux_tree_set+0x4d2/0x580 [ 180.339981][ T5780] ? rw_aux_tree_insert_entry+0x6c3/0x970 [ 180.345808][ T5780] ? bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 180.351900][ T5780] ? bch2_bset_insert+0x1621/0x19f0 [ 180.357195][ T5780] ? bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 180.363297][ T5780] ? bch2_btree_insert_key_leaf+0x276/0x1050 [ 180.369392][ T5780] ? __bch2_trans_commit+0xaf5e/0xd190 [ 180.374964][ T5780] ? bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 180.381511][ T5780] ? bch2_trans_mark_dev_sb+0x858/0x10e0 [ 180.387291][ T5780] ? bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 180.393635][ T5780] ? bch2_trans_mark_dev_sbs+0x32/0x40 [ 180.399247][ T5780] ? bch2_fs_initialize+0x19bd/0x35d0 [ 180.404793][ T5780] ? bch2_fs_start+0x77d/0xbd0 [ 180.409704][ T5780] ? bch2_fs_get_tree+0x13ea/0x22d0 [ 180.415071][ T5780] ? vfs_get_tree+0xb1/0x5a0 [ 180.419790][ T5780] ? do_new_mount+0x71f/0x15e0 [ 180.424646][ T5780] ? path_mount+0x742/0x1f10 [ 180.429317][ T5780] ? __se_sys_mount+0x722/0x810 [ 180.434262][ T5780] ? __x64_sys_mount+0xe4/0x150 [ 180.439222][ T5780] ? x64_sys_call+0x39bf/0x3c30 [ 180.444242][ T5780] ? do_syscall_64+0xcd/0x1e0 [ 180.449085][ T5780] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 180.455309][ T5780] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 180.461314][ T5780] ? filter_irq_stacks+0x164/0x1a0 [ 180.466576][ T5780] ? stack_depot_save_flags+0x2c/0x750 [ 180.472224][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 180.477530][ T5780] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 180.484032][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 180.489378][ T5780] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 180.495368][ T5780] __msan_warning+0x95/0x120 [ 180.500088][ T5780] rw_aux_tree_set+0x4d2/0x580 [ 180.504965][ T5780] ? bset_aux_tree_verify+0x44d/0x4a0 [ 180.510449][ T5780] rw_aux_tree_insert_entry+0x6c3/0x970 [ 180.516145][ T5780] bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 180.522065][ T5780] ? bch2_bkey_pack_key+0x1745/0x1860 [ 180.527579][ T5780] bch2_bset_insert+0x1621/0x19f0 [ 180.532707][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 180.538029][ T5780] bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 180.543989][ T5780] ? __msan_memcpy+0x108/0x1c0 [ 180.548920][ T5780] bch2_btree_insert_key_leaf+0x276/0x1050 [ 180.555006][ T5780] __bch2_trans_commit+0xaf5e/0xd190 [ 180.560461][ T5780] bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 180.566843][ T5780] ? bch2_trans_start_alloc_update_noupdate+0x179/0x12f0 [ 180.574032][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 180.579356][ T5780] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 180.585296][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 180.590634][ T5780] ? kmsan_internal_set_shadow_origin+0x10/0x100 [ 180.597126][ T5780] bch2_trans_mark_dev_sb+0x858/0x10e0 [ 180.602854][ T5780] bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 180.609013][ T5780] bch2_trans_mark_dev_sbs+0x32/0x40 [ 180.614427][ T5780] bch2_fs_initialize+0x19bd/0x35d0 [ 180.619782][ T5780] ? kmsan_internal_poison_memory+0x49/0x90 [ 180.625836][ T5780] ? kmsan_slab_free+0xd0/0x140 [ 180.630812][ T5780] ? kfree+0x240/0xdb0 [ 180.634987][ T5780] ? bch2_printbuf_exit+0x9b/0xd0 [ 180.640140][ T5780] ? print_mount_opts+0x4ca/0x4f0 [ 180.645291][ T5780] ? bch2_fs_start+0x59/0xbd0 [ 180.650108][ T5780] ? bch2_fs_get_tree+0x13ea/0x22d0 [ 180.655477][ T5780] ? vfs_get_tree+0xb1/0x5a0 [ 180.660187][ T5780] ? do_new_mount+0x71f/0x15e0 [ 180.665082][ T5780] ? path_mount+0x742/0x1f10 [ 180.669755][ T5780] ? __se_sys_mount+0x722/0x810 [ 180.674696][ T5780] ? __x64_sys_mount+0xe4/0x150 [ 180.679654][ T5780] ? x64_sys_call+0x39bf/0x3c30 [ 180.684636][ T5780] ? do_syscall_64+0xcd/0x1e0 [ 180.689407][ T5780] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 180.695631][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 180.701002][ T5780] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 180.706965][ T5780] ? kfree+0x1a7/0xdb0 [ 180.711229][ T5780] ? filter_irq_stacks+0x60/0x1a0 [ 180.716381][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 180.721686][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 180.726991][ T5780] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 180.732908][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 180.738209][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 180.743508][ T5780] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 180.749417][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 180.754716][ T5780] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 180.761205][ T5780] ? llist_reverse_order+0x102/0x130 [ 180.766601][ T5780] ? kmsan_internal_unpoison_memory+0x14/0x20 [ 180.772803][ T5780] ? __closure_wake_up+0x16a/0x180 [ 180.778038][ T5780] bch2_fs_start+0x77d/0xbd0 [ 180.782771][ T5780] bch2_fs_get_tree+0x13ea/0x22d0 [ 180.787947][ T5780] vfs_get_tree+0xb1/0x5a0 [ 180.792493][ T5780] ? mount_capable+0x97/0x120 [ 180.797308][ T5780] do_new_mount+0x71f/0x15e0 [ 180.802046][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 180.807354][ T5780] path_mount+0x742/0x1f10 [ 180.811863][ T5780] ? user_path_at+0x374/0x3e0 [ 180.816662][ T5780] __se_sys_mount+0x722/0x810 [ 180.821444][ T5780] ? ptrace_notify+0x263/0x320 [ 180.826342][ T5780] __x64_sys_mount+0xe4/0x150 [ 180.831146][ T5780] x64_sys_call+0x39bf/0x3c30 [ 180.836029][ T5780] do_syscall_64+0xcd/0x1e0 [ 180.840643][ T5780] ? clear_bhb_loop+0x25/0x80 [ 180.845447][ T5780] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 180.851476][ T5780] RIP: 0033:0x7fbe832a3dea [ 180.855984][ T5780] 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 [ 180.875717][ T5780] RSP: 002b:00007ffde3861138 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 180.884268][ T5780] RAX: ffffffffffffffda RBX: 00007ffde3861150 RCX: 00007fbe832a3dea [ 180.892339][ T5780] RDX: 0000000020000100 RSI: 00000000200000c0 RDI: 00007ffde3861150 [ 180.900424][ T5780] RBP: 0000000000000004 R08: 00007ffde3861190 R09: 00000000000059d0 [ 180.908494][ T5780] R10: 0000000000010002 R11: 0000000000000282 R12: 0000000000010002 [ 180.916549][ T5780] R13: 00007ffde3861190 R14: 0000000000000003 R15: 0000000001000000 [ 180.924634][ T5780] [ 180.928103][ T5780] Kernel Offset: disabled [ 180.932498][ T5780] Rebooting in 86400 seconds..