./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor536548606 <...> Warning: Permanently added '10.128.1.100' (ED25519) to the list of known hosts. execve("./syz-executor536548606", ["./syz-executor536548606"], 0x7ffed1576a20 /* 10 vars */) = 0 brk(NULL) = 0x555562596000 brk(0x555562596d00) = 0x555562596d00 arch_prctl(ARCH_SET_FS, 0x555562596380) = 0 set_tid_address(0x555562596650) = 5787 set_robust_list(0x555562596660, 24) = 0 rseq(0x555562596ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor536548606", 4096) = 27 getrandom("\x2e\xa2\x32\xaf\x0c\x4d\xda\x0a", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555562596d00 brk(0x5555625b7d00) = 0x5555625b7d00 brk(0x5555625b8000) = 0x5555625b8000 mprotect(0x7f64e159c000, 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=0x555562596650) = 5788 ./strace-static-x86_64: Process 5788 attached [pid 5788] set_robust_list(0x555562596660, 24) = 0 [pid 5788] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5788] setpgid(0, 0) = 0 [pid 5788] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5788] write(3, "1000", 4executing program ) = 4 [pid 5788] close(3) = 0 [pid 5788] write(1, "executing program\n", 18) = 18 [pid 5788] memfd_create("syzkaller", 0) = 3 [pid 5788] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f64d9000000 [pid 5788] 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 5788] munmap(0x7f64d9000000, 138412032) = 0 [pid 5788] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5788] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5788] close(3) = 0 [pid 5788] close(4) = 0 [pid 5788] mkdir("./file1", 0777) = 0 [ 191.326705][ T5788] loop0: detected capacity change from 0 to 32768 [ 191.449514][ T5788] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=errors=continue,metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names [ 191.466544][ T5788] bcachefs (loop0): initializing new filesystem [ 191.479809][ T5788] bcachefs (loop0): going read-write [ 191.489279][ T5788] bcachefs (loop0): marking superblocks [ 191.517285][ T5788] ===================================================== [ 191.524431][ T5788] BUG: KMSAN: uninit-value in rw_aux_tree_set+0x4d2/0x580 [ 191.531976][ T5788] rw_aux_tree_set+0x4d2/0x580 [ 191.536904][ T5788] rw_aux_tree_insert_entry+0x6c3/0x970 [ 191.542663][ T5788] bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 191.548763][ T5788] bch2_bset_insert+0x1621/0x19f0 [ 191.553906][ T5788] bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 191.559929][ T5788] bch2_btree_insert_key_leaf+0x276/0x1050 [ 191.565932][ T5788] __bch2_trans_commit+0xaf5e/0xd190 [ 191.571511][ T5788] bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 191.578110][ T5788] bch2_trans_mark_dev_sb+0x858/0x10e0 [ 191.583760][ T5788] bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 191.590051][ T5788] bch2_trans_mark_dev_sbs+0x32/0x40 [ 191.595536][ T5788] bch2_fs_initialize+0x19bd/0x35d0 [ 191.600980][ T5788] bch2_fs_start+0x77d/0xbd0 [ 191.605790][ T5788] bch2_fs_get_tree+0x13ea/0x22d0 [ 191.611101][ T5788] vfs_get_tree+0xb1/0x5a0 [ 191.615765][ T5788] do_new_mount+0x71f/0x15e0 [ 191.620647][ T5788] path_mount+0x742/0x1f10 [ 191.625216][ T5788] __se_sys_mount+0x722/0x810 [ 191.630173][ T5788] __x64_sys_mount+0xe4/0x150 [ 191.635059][ T5788] x64_sys_call+0x39bf/0x3c30 [ 191.639977][ T5788] do_syscall_64+0xcd/0x1e0 [ 191.644648][ T5788] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 191.650957][ T5788] [ 191.653366][ T5788] Uninit was created at: [ 191.657972][ T5788] ___kmalloc_large_node+0x22c/0x370 [ 191.663473][ T5788] __kmalloc_large_node_noprof+0x3f/0x1e0 [ 191.669473][ T5788] __kmalloc_node_noprof+0xc96/0x1250 [ 191.675054][ T5788] __kvmalloc_node_noprof+0xc0/0x2d0 [ 191.680554][ T5788] __bch2_btree_node_mem_alloc+0x2be/0xa80 [ 191.686544][ T5788] bch2_fs_btree_cache_init+0x4e4/0xb50 [ 191.692350][ T5788] bch2_fs_open+0x4d3a/0x5b40 [ 191.697296][ T5788] bch2_fs_get_tree+0x983/0x22d0 [ 191.702344][ T5788] vfs_get_tree+0xb1/0x5a0 [ 191.706906][ T5788] do_new_mount+0x71f/0x15e0 [ 191.711837][ T5788] path_mount+0x742/0x1f10 [ 191.716418][ T5788] __se_sys_mount+0x722/0x810 [ 191.721345][ T5788] __x64_sys_mount+0xe4/0x150 [ 191.726173][ T5788] x64_sys_call+0x39bf/0x3c30 [ 191.731142][ T5788] do_syscall_64+0xcd/0x1e0 [ 191.735829][ T5788] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 191.742108][ T5788] [ 191.744549][ T5788] CPU: 0 UID: 0 PID: 5788 Comm: syz-executor536 Not tainted 6.13.0-rc6-syzkaller-00130-g2144da25584e #0 [ 191.755962][ T5788] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 191.766328][ T5788] ===================================================== [ 191.773568][ T5788] Disabling lock debugging due to kernel taint [ 191.779904][ T5788] Kernel panic - not syncing: kmsan.panic set ... [ 191.786414][ T5788] CPU: 0 UID: 0 PID: 5788 Comm: syz-executor536 Tainted: G B 6.13.0-rc6-syzkaller-00130-g2144da25584e #0 [ 191.799153][ T5788] Tainted: [B]=BAD_PAGE [ 191.803380][ T5788] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 191.813572][ T5788] Call Trace: [ 191.816964][ T5788] [ 191.819974][ T5788] dump_stack_lvl+0x216/0x2d0 [ 191.824833][ T5788] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 191.830831][ T5788] dump_stack+0x1e/0x24 [ 191.835129][ T5788] panic+0x4e2/0xcf0 [ 191.839193][ T5788] ? kmsan_get_metadata+0x81/0x1c0 [ 191.844411][ T5788] kmsan_report+0x2c7/0x2d0 [ 191.849051][ T5788] ? _raw_spin_unlock_irqrestore+0x3f/0x60 [ 191.855023][ T5788] ? __msan_warning+0x95/0x120 [ 191.859910][ T5788] ? rw_aux_tree_set+0x4d2/0x580 [ 191.864949][ T5788] ? rw_aux_tree_insert_entry+0x6c3/0x970 [ 191.870784][ T5788] ? bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 191.876865][ T5788] ? bch2_bset_insert+0x1621/0x19f0 [ 191.882195][ T5788] ? bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 191.888313][ T5788] ? bch2_btree_insert_key_leaf+0x276/0x1050 [ 191.894413][ T5788] ? __bch2_trans_commit+0xaf5e/0xd190 [ 191.899990][ T5788] ? bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 191.906547][ T5788] ? bch2_trans_mark_dev_sb+0x858/0x10e0 [ 191.912300][ T5788] ? bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 191.918581][ T5788] ? bch2_trans_mark_dev_sbs+0x32/0x40 [ 191.924214][ T5788] ? bch2_fs_initialize+0x19bd/0x35d0 [ 191.929705][ T5788] ? bch2_fs_start+0x77d/0xbd0 [ 191.934607][ T5788] ? bch2_fs_get_tree+0x13ea/0x22d0 [ 191.939929][ T5788] ? vfs_get_tree+0xb1/0x5a0 [ 191.944674][ T5788] ? do_new_mount+0x71f/0x15e0 [ 191.949550][ T5788] ? path_mount+0x742/0x1f10 [ 191.954281][ T5788] ? __se_sys_mount+0x722/0x810 [ 191.959234][ T5788] ? __x64_sys_mount+0xe4/0x150 [ 191.964204][ T5788] ? x64_sys_call+0x39bf/0x3c30 [ 191.969184][ T5788] ? do_syscall_64+0xcd/0x1e0 [ 191.974001][ T5788] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 191.980248][ T5788] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 191.986194][ T5788] ? filter_irq_stacks+0x164/0x1a0 [ 191.991457][ T5788] ? stack_depot_save_flags+0x2c/0x750 [ 191.997066][ T5788] ? kmsan_get_metadata+0x13e/0x1c0 [ 192.002463][ T5788] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 192.009014][ T5788] ? kmsan_get_metadata+0x13e/0x1c0 [ 192.014341][ T5788] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 192.020283][ T5788] __msan_warning+0x95/0x120 [ 192.025048][ T5788] rw_aux_tree_set+0x4d2/0x580 [ 192.029941][ T5788] ? bset_aux_tree_verify+0x44d/0x4a0 [ 192.035532][ T5788] rw_aux_tree_insert_entry+0x6c3/0x970 [ 192.041236][ T5788] bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 192.047210][ T5788] ? bch2_bkey_pack_key+0x1745/0x1860 [ 192.052762][ T5788] bch2_bset_insert+0x1621/0x19f0 [ 192.057915][ T5788] ? kmsan_get_metadata+0x13e/0x1c0 [ 192.063366][ T5788] bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 192.069344][ T5788] ? __msan_memcpy+0x108/0x1c0 [ 192.074309][ T5788] bch2_btree_insert_key_leaf+0x276/0x1050 [ 192.080570][ T5788] __bch2_trans_commit+0xaf5e/0xd190 [ 192.086038][ T5788] bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 192.092464][ T5788] ? bch2_trans_start_alloc_update_noupdate+0x179/0x12f0 [ 192.099688][ T5788] ? kmsan_get_metadata+0x13e/0x1c0 [ 192.105087][ T5788] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 192.111074][ T5788] ? kmsan_get_metadata+0x13e/0x1c0 [ 192.116498][ T5788] ? kmsan_internal_set_shadow_origin+0x10/0x100 [ 192.123020][ T5788] bch2_trans_mark_dev_sb+0x858/0x10e0 [ 192.128785][ T5788] bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 192.134957][ T5788] bch2_trans_mark_dev_sbs+0x32/0x40 [ 192.140453][ T5788] bch2_fs_initialize+0x19bd/0x35d0 [ 192.145806][ T5788] ? kmsan_internal_poison_memory+0x49/0x90 [ 192.151940][ T5788] ? kmsan_slab_free+0xd0/0x140 [ 192.156932][ T5788] ? kfree+0x240/0xdb0 [ 192.161131][ T5788] ? bch2_printbuf_exit+0x9b/0xd0 [ 192.166291][ T5788] ? print_mount_opts+0x4ca/0x4f0 [ 192.171495][ T5788] ? bch2_fs_start+0x59/0xbd0 [ 192.176303][ T5788] ? bch2_fs_get_tree+0x13ea/0x22d0 [ 192.181662][ T5788] ? vfs_get_tree+0xb1/0x5a0 [ 192.186402][ T5788] ? do_new_mount+0x71f/0x15e0 [ 192.191303][ T5788] ? path_mount+0x742/0x1f10 [ 192.196006][ T5788] ? __se_sys_mount+0x722/0x810 [ 192.201009][ T5788] ? __x64_sys_mount+0xe4/0x150 [ 192.205983][ T5788] ? x64_sys_call+0x39bf/0x3c30 [ 192.210996][ T5788] ? do_syscall_64+0xcd/0x1e0 [ 192.215825][ T5788] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 192.222150][ T5788] ? kmsan_get_metadata+0x13e/0x1c0 [ 192.227482][ T5788] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 192.233450][ T5788] ? kfree+0x1a7/0xdb0 [ 192.237653][ T5788] ? filter_irq_stacks+0x60/0x1a0 [ 192.242898][ T5788] ? kmsan_get_metadata+0x13e/0x1c0 [ 192.248208][ T5788] ? kmsan_get_metadata+0x13e/0x1c0 [ 192.253502][ T5788] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 192.259414][ T5788] ? kmsan_get_metadata+0x13e/0x1c0 [ 192.264709][ T5788] ? kmsan_get_metadata+0x13e/0x1c0 [ 192.270014][ T5788] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 192.275964][ T5788] ? kmsan_get_metadata+0x13e/0x1c0 [ 192.281297][ T5788] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 192.287767][ T5788] ? llist_reverse_order+0x102/0x130 [ 192.293151][ T5788] ? kmsan_internal_unpoison_memory+0x14/0x20 [ 192.299353][ T5788] ? __closure_wake_up+0x16a/0x180 [ 192.304600][ T5788] bch2_fs_start+0x77d/0xbd0 [ 192.309337][ T5788] bch2_fs_get_tree+0x13ea/0x22d0 [ 192.314612][ T5788] vfs_get_tree+0xb1/0x5a0 [ 192.319164][ T5788] ? mount_capable+0x97/0x120 [ 192.323965][ T5788] do_new_mount+0x71f/0x15e0 [ 192.328644][ T5788] ? kmsan_get_metadata+0x13e/0x1c0 [ 192.333979][ T5788] path_mount+0x742/0x1f10 [ 192.338498][ T5788] ? user_path_at+0x374/0x3e0 [ 192.343304][ T5788] __se_sys_mount+0x722/0x810 [ 192.348094][ T5788] ? ptrace_notify+0x263/0x320 [ 192.352987][ T5788] __x64_sys_mount+0xe4/0x150 [ 192.357780][ T5788] x64_sys_call+0x39bf/0x3c30 [ 192.362586][ T5788] do_syscall_64+0xcd/0x1e0 [ 192.367212][ T5788] ? clear_bhb_loop+0x25/0x80 [ 192.372015][ T5788] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 192.378046][ T5788] RIP: 0033:0x7f64e1524dea [ 192.382571][ T5788] 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 [ 192.402292][ T5788] RSP: 002b:00007ffd72a7f8c8 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 192.410823][ T5788] RAX: ffffffffffffffda RBX: 00007ffd72a7f8e0 RCX: 00007f64e1524dea [ 192.418881][ T5788] RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 00007ffd72a7f8e0 [ 192.426940][ T5788] RBP: 0000000000000010 R08: 00007ffd72a7f920 R09: 00000000000059d0 [ 192.435006][ T5788] R10: 0000000000000010 R11: 0000000000000282 R12: 0000000000000004 [ 192.443072][ T5788] R13: 00007ffd72a7f920 R14: 0000000000000003 R15: 0000000001000000 [ 192.451172][ T5788] [ 192.454633][ T5788] Kernel Offset: disabled [ 192.459079][ T5788] Rebooting in 86400 seconds..