./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1270625425 <...> Warning: Permanently added '10.128.1.103' (ED25519) to the list of known hosts. execve("./syz-executor1270625425", ["./syz-executor1270625425"], 0x7ffe964a6690 /* 10 vars */) = 0 brk(NULL) = 0x5555628e5000 brk(0x5555628e5d00) = 0x5555628e5d00 arch_prctl(ARCH_SET_FS, 0x5555628e5380) = 0 set_tid_address(0x5555628e5650) = 5777 set_robust_list(0x5555628e5660, 24) = 0 rseq(0x5555628e5ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1270625425", 4096) = 28 getrandom("\xa2\xf2\x75\x1f\x4a\xa1\xf1\x80", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555628e5d00 brk(0x555562906d00) = 0x555562906d00 brk(0x555562907000) = 0x555562907000 mprotect(0x7ff917d0d000, 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=0x5555628e5650) = 5778 ./strace-static-x86_64: Process 5778 attached [pid 5778] set_robust_list(0x5555628e5660, 24) = 0 [pid 5778] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5778] setpgid(0, 0) = 0 [pid 5778] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5778] write(3, "1000", 4) = 4 [pid 5778] close(3executing program ) = 0 [pid 5778] write(1, "executing program\n", 18) = 18 [pid 5778] memfd_create("syzkaller", 0) = 3 [pid 5778] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff90f800000 [pid 5778] 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 5778] munmap(0x7ff90f800000, 138412032) = 0 [pid 5778] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5778] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5778] close(3) = 0 [pid 5778] close(4) = 0 [pid 5778] mkdir("./file1", 0777) = 0 [ 183.092829][ T5778] loop0: detected capacity change from 0 to 32768 [ 183.204553][ T5778] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=errors=continue,metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names [ 183.221796][ T5778] bcachefs (loop0): initializing new filesystem [ 183.241214][ T5778] bcachefs (loop0): going read-write [ 183.251118][ T5778] bcachefs (loop0): marking superblocks [ 183.273812][ T5778] ===================================================== [ 183.281020][ T5778] BUG: KMSAN: uninit-value in rw_aux_tree_set+0x4d2/0x580 [ 183.288605][ T5778] rw_aux_tree_set+0x4d2/0x580 [ 183.293624][ T5778] rw_aux_tree_insert_entry+0x6c3/0x970 [ 183.299302][ T5778] bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 183.305363][ T5778] bch2_bset_insert+0x1621/0x19f0 [ 183.310555][ T5778] bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 183.316608][ T5778] bch2_btree_insert_key_leaf+0x276/0x1050 [ 183.322745][ T5778] __bch2_trans_commit+0xaf5e/0xd190 [ 183.328176][ T5778] bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 183.334678][ T5778] bch2_trans_mark_dev_sb+0x858/0x10e0 [ 183.340345][ T5778] bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 183.346721][ T5778] bch2_trans_mark_dev_sbs+0x32/0x40 [ 183.352378][ T5778] bch2_fs_initialize+0x19bd/0x35d0 [ 183.357749][ T5778] bch2_fs_start+0x77d/0xbd0 [ 183.362705][ T5778] bch2_fs_get_tree+0x13ea/0x22d0 [ 183.367896][ T5778] vfs_get_tree+0xb1/0x5a0 [ 183.372599][ T5778] do_new_mount+0x71f/0x15e0 [ 183.377349][ T5778] path_mount+0x742/0x1f10 [ 183.382113][ T5778] __se_sys_mount+0x722/0x810 [ 183.386932][ T5778] __x64_sys_mount+0xe4/0x150 [ 183.391833][ T5778] x64_sys_call+0x39bf/0x3c30 [ 183.396702][ T5778] do_syscall_64+0xcd/0x1e0 [ 183.401538][ T5778] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 183.407626][ T5778] [ 183.409991][ T5778] Uninit was created at: [ 183.414578][ T5778] ___kmalloc_large_node+0x22c/0x370 [ 183.420046][ T5778] __kmalloc_large_node_noprof+0x3f/0x1e0 [ 183.426047][ T5778] __kmalloc_node_noprof+0xc96/0x1250 [ 183.431713][ T5778] __kvmalloc_node_noprof+0xc0/0x2d0 [ 183.437100][ T5778] __bch2_btree_node_mem_alloc+0x2be/0xa80 [ 183.443443][ T5778] bch2_fs_btree_cache_init+0x4e4/0xb50 [ 183.449178][ T5778] bch2_fs_open+0x4d3a/0x5b40 [ 183.454134][ T5778] bch2_fs_get_tree+0x983/0x22d0 [ 183.459228][ T5778] vfs_get_tree+0xb1/0x5a0 [ 183.464018][ T5778] do_new_mount+0x71f/0x15e0 [ 183.468783][ T5778] path_mount+0x742/0x1f10 [ 183.473591][ T5778] __se_sys_mount+0x722/0x810 [ 183.478484][ T5778] __x64_sys_mount+0xe4/0x150 [ 183.483437][ T5778] x64_sys_call+0x39bf/0x3c30 [ 183.488311][ T5778] do_syscall_64+0xcd/0x1e0 [ 183.493051][ T5778] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 183.499154][ T5778] [ 183.501733][ T5778] CPU: 0 UID: 0 PID: 5778 Comm: syz-executor127 Not tainted 6.13.0-rc5-syzkaller-00004-gccb98ccef0e5 #0 [ 183.513097][ T5778] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 183.523686][ T5778] ===================================================== [ 183.530737][ T5778] Disabling lock debugging due to kernel taint [ 183.537102][ T5778] Kernel panic - not syncing: kmsan.panic set ... [ 183.543645][ T5778] CPU: 0 UID: 0 PID: 5778 Comm: syz-executor127 Tainted: G B 6.13.0-rc5-syzkaller-00004-gccb98ccef0e5 #0 [ 183.556367][ T5778] Tainted: [B]=BAD_PAGE [ 183.560578][ T5778] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 183.570723][ T5778] Call Trace: [ 183.574069][ T5778] [ 183.577054][ T5778] dump_stack_lvl+0x216/0x2d0 [ 183.581850][ T5778] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 183.587768][ T5778] dump_stack+0x1e/0x24 [ 183.592068][ T5778] panic+0x4e2/0xcf0 [ 183.596106][ T5778] ? kmsan_get_metadata+0x111/0x1c0 [ 183.601476][ T5778] kmsan_report+0x2c7/0x2d0 [ 183.606070][ T5778] ? _raw_spin_unlock_irqrestore+0x3f/0x60 [ 183.612009][ T5778] ? __msan_warning+0x95/0x120 [ 183.616911][ T5778] ? rw_aux_tree_set+0x4d2/0x580 [ 183.621948][ T5778] ? rw_aux_tree_insert_entry+0x6c3/0x970 [ 183.627772][ T5778] ? bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 183.633877][ T5778] ? bch2_bset_insert+0x1621/0x19f0 [ 183.639177][ T5778] ? bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 183.645287][ T5778] ? bch2_btree_insert_key_leaf+0x276/0x1050 [ 183.651401][ T5778] ? __bch2_trans_commit+0xaf5e/0xd190 [ 183.656974][ T5778] ? bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 183.663511][ T5778] ? bch2_trans_mark_dev_sb+0x858/0x10e0 [ 183.669254][ T5778] ? bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 183.675557][ T5778] ? bch2_trans_mark_dev_sbs+0x32/0x40 [ 183.681193][ T5778] ? bch2_fs_initialize+0x19bd/0x35d0 [ 183.686812][ T5778] ? bch2_fs_start+0x77d/0xbd0 [ 183.691793][ T5778] ? bch2_fs_get_tree+0x13ea/0x22d0 [ 183.697152][ T5778] ? vfs_get_tree+0xb1/0x5a0 [ 183.701871][ T5778] ? do_new_mount+0x71f/0x15e0 [ 183.706743][ T5778] ? path_mount+0x742/0x1f10 [ 183.711449][ T5778] ? __se_sys_mount+0x722/0x810 [ 183.716394][ T5778] ? __x64_sys_mount+0xe4/0x150 [ 183.721353][ T5778] ? x64_sys_call+0x39bf/0x3c30 [ 183.726401][ T5778] ? do_syscall_64+0xcd/0x1e0 [ 183.731180][ T5778] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 183.737410][ T5778] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 183.743374][ T5778] ? filter_irq_stacks+0x164/0x1a0 [ 183.748669][ T5778] ? stack_depot_save_flags+0x2c/0x750 [ 183.754242][ T5778] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.759543][ T5778] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 183.766023][ T5778] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.771388][ T5778] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 183.777304][ T5778] __msan_warning+0x95/0x120 [ 183.782083][ T5778] rw_aux_tree_set+0x4d2/0x580 [ 183.786943][ T5778] ? bset_aux_tree_verify+0x44d/0x4a0 [ 183.792419][ T5778] rw_aux_tree_insert_entry+0x6c3/0x970 [ 183.798082][ T5778] bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 183.803990][ T5778] ? bch2_bkey_pack_key+0x1745/0x1860 [ 183.809515][ T5778] bch2_bset_insert+0x1621/0x19f0 [ 183.814638][ T5778] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.819954][ T5778] bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 183.825883][ T5778] ? __msan_memcpy+0x108/0x1c0 [ 183.830791][ T5778] bch2_btree_insert_key_leaf+0x276/0x1050 [ 183.836739][ T5778] __bch2_trans_commit+0xaf5e/0xd190 [ 183.842188][ T5778] bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 183.848568][ T5778] ? bch2_trans_start_alloc_update_noupdate+0x179/0x12f0 [ 183.855727][ T5778] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.861026][ T5778] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 183.866943][ T5778] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.872262][ T5778] ? kmsan_save_stack_with_flags+0x10/0x60 [ 183.878206][ T5778] bch2_trans_mark_dev_sb+0x858/0x10e0 [ 183.883849][ T5778] bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 183.889990][ T5778] bch2_trans_mark_dev_sbs+0x32/0x40 [ 183.895393][ T5778] bch2_fs_initialize+0x19bd/0x35d0 [ 183.900698][ T5778] ? kmsan_internal_poison_memory+0x49/0x90 [ 183.906727][ T5778] ? kmsan_slab_free+0xd0/0x140 [ 183.911703][ T5778] ? kfree+0x240/0xdb0 [ 183.915877][ T5778] ? bch2_printbuf_exit+0x9b/0xd0 [ 183.921016][ T5778] ? print_mount_opts+0x4ca/0x4f0 [ 183.926189][ T5778] ? bch2_fs_start+0x59/0xbd0 [ 183.931079][ T5778] ? bch2_fs_get_tree+0x13ea/0x22d0 [ 183.936395][ T5778] ? vfs_get_tree+0xb1/0x5a0 [ 183.941175][ T5778] ? do_new_mount+0x71f/0x15e0 [ 183.946041][ T5778] ? path_mount+0x742/0x1f10 [ 183.950751][ T5778] ? __se_sys_mount+0x722/0x810 [ 183.955694][ T5778] ? __x64_sys_mount+0xe4/0x150 [ 183.960638][ T5778] ? x64_sys_call+0x39bf/0x3c30 [ 183.965610][ T5778] ? do_syscall_64+0xcd/0x1e0 [ 183.970398][ T5778] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 183.976663][ T5778] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.981981][ T5778] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 183.987950][ T5778] ? kfree+0x1a7/0xdb0 [ 183.992146][ T5778] ? filter_irq_stacks+0x60/0x1a0 [ 183.997298][ T5778] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.002600][ T5778] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.007893][ T5778] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 184.013804][ T5778] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.019098][ T5778] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.024389][ T5778] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 184.030300][ T5778] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.035594][ T5778] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 184.042057][ T5778] ? llist_reverse_order+0x102/0x130 [ 184.047454][ T5778] ? kmsan_internal_unpoison_memory+0x14/0x20 [ 184.053668][ T5778] ? __closure_wake_up+0x16a/0x180 [ 184.058909][ T5778] bch2_fs_start+0x77d/0xbd0 [ 184.063633][ T5778] bch2_fs_get_tree+0x13ea/0x22d0 [ 184.068802][ T5778] vfs_get_tree+0xb1/0x5a0 [ 184.073370][ T5778] ? mount_capable+0x97/0x120 [ 184.078250][ T5778] do_new_mount+0x71f/0x15e0 [ 184.082939][ T5778] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.088251][ T5778] path_mount+0x742/0x1f10 [ 184.092814][ T5778] ? user_path_at+0x374/0x3e0 [ 184.097611][ T5778] __se_sys_mount+0x722/0x810 [ 184.102395][ T5778] __x64_sys_mount+0xe4/0x150 [ 184.107200][ T5778] x64_sys_call+0x39bf/0x3c30 [ 184.112081][ T5778] do_syscall_64+0xcd/0x1e0 [ 184.116673][ T5778] ? clear_bhb_loop+0x25/0x80 [ 184.121473][ T5778] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 184.127497][ T5778] RIP: 0033:0x7ff917c95dea [ 184.132006][ T5778] 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 [ 184.151731][ T5778] RSP: 002b:00007ffec6d20098 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 184.160257][ T5778] RAX: ffffffffffffffda RBX: 00007ffec6d200b0 RCX: 00007ff917c95dea [ 184.168414][ T5778] RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 00007ffec6d200b0 [ 184.176477][ T5778] RBP: 0000000000000010 R08: 00007ffec6d200f0 R09: 00000000000059ec [ 184.184527][ T5778] R10: 0000000000000010 R11: 0000000000000282 R12: 0000000000000004 [ 184.192577][ T5778] R13: 00007ffec6d200f0 R14: 0000000000000003 R15: 0000000001000000 [ 184.200645][ T5778] [ 184.204048][ T5778] Kernel Offset: disabled [ 184.208435][ T5778] Rebooting in 86400 seconds..