./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4124297361 <...> Warning: Permanently added '10.128.0.99' (ED25519) to the list of known hosts. execve("./syz-executor4124297361", ["./syz-executor4124297361"], 0x7ffc22c344f0 /* 10 vars */) = 0 brk(NULL) = 0x555569306000 brk(0x555569306d00) = 0x555569306d00 arch_prctl(ARCH_SET_FS, 0x555569306380) = 0 set_tid_address(0x555569306650) = 5774 set_robust_list(0x555569306660, 24) = 0 rseq(0x555569306ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor4124297361", 4096) = 28 getrandom("\x9b\xaa\x96\xf7\xaf\xf2\x0c\xc6", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555569306d00 brk(0x555569327d00) = 0x555569327d00 brk(0x555569328000) = 0x555569328000 mprotect(0x7f5b751c4000, 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=0x555569306650) = 5775 ./strace-static-x86_64: Process 5775 attached [pid 5775] set_robust_list(0x555569306660, 24) = 0 [pid 5775] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5775] setpgid(0, 0) = 0 [pid 5775] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5775] write(3, "1000", 4) = 4 [pid 5775] close(3) = 0 [pid 5775] write(1, "executing program\n", 18executing program ) = 18 [pid 5775] openat(AT_FDCWD, "blkio.bfq.io_serviced", O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_APPEND|FASYNC|0x20, 000) = 3 [pid 5775] close(3) = 0 [pid 5775] openat(AT_FDCWD, "/dev/char/4:1", O_RDWR) = 3 [pid 5775] ioctl(3, KDSETMODE, KD_GRAPHICS) = 0 [pid 5775] dup(3) = 4 [pid 5775] memfd_create("syzkaller", 0) = 5 [pid 5775] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5b6cc00000 [pid 5775] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5775] munmap(0x7f5b6cc00000, 138412032) = 0 [pid 5775] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6 [pid 5775] ioctl(6, LOOP_SET_FD, 5) = 0 [pid 5775] close(5) = 0 [pid 5775] close(6) = 0 [pid 5775] mkdir("./file1", 0777) = 0 [ 209.600823][ T5775] loop0: detected capacity change from 0 to 32768 [ 209.737640][ T5775] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=errors=continue,metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names [ 209.754820][ T5775] bcachefs (loop0): initializing new filesystem [ 209.775177][ T5775] bcachefs (loop0): going read-write [ 209.787540][ T5775] bcachefs (loop0): marking superblocks [ 209.817904][ T5775] ===================================================== [ 209.825440][ T5775] BUG: KMSAN: uninit-value in rw_aux_tree_set+0x4d2/0x580 [ 209.833034][ T5775] rw_aux_tree_set+0x4d2/0x580 [ 209.837973][ T5775] rw_aux_tree_insert_entry+0x6c3/0x970 [ 209.843870][ T5775] bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 209.850073][ T5775] bch2_bset_insert+0x1621/0x19f0 [ 209.855239][ T5775] bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 209.861396][ T5775] bch2_btree_insert_key_leaf+0x276/0x1050 [ 209.867429][ T5775] __bch2_trans_commit+0xbbb7/0xd310 [ 209.873045][ T5775] bch2_trans_mark_metadata_bucket+0x63b/0x1eb0 [ 209.879718][ T5775] bch2_trans_mark_dev_sb+0x858/0x10e0 [ 209.885408][ T5775] bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 209.891794][ T5775] bch2_trans_mark_dev_sbs+0x32/0x40 [ 209.897296][ T5775] bch2_fs_initialize+0x19cd/0x2f90 [ 209.902831][ T5775] bch2_fs_start+0x792/0xc20 [ 209.907703][ T5775] bch2_fs_get_tree+0x143a/0x2330 [ 209.913073][ T5775] vfs_get_tree+0xb1/0x5a0 [ 209.917765][ T5775] do_new_mount+0x71f/0x15e0 [ 209.922639][ T5775] path_mount+0x742/0x1f10 [ 209.927243][ T5775] __se_sys_mount+0x71f/0x800 [ 209.932246][ T5775] __x64_sys_mount+0xe4/0x150 [ 209.937118][ T5775] x64_sys_call+0x39bf/0x3c30 [ 209.942135][ T5775] do_syscall_64+0xcd/0x1e0 [ 209.946905][ T5775] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 209.953147][ T5775] [ 209.955572][ T5775] Uninit was created at: [ 209.960269][ T5775] ___kmalloc_large_node+0x22c/0x370 [ 209.965803][ T5775] __kmalloc_large_node_noprof+0x3f/0x1e0 [ 209.971872][ T5775] __kmalloc_node_noprof+0xc96/0x1250 [ 209.977492][ T5775] __kvmalloc_node_noprof+0xc0/0x2d0 [ 209.983057][ T5775] __bch2_btree_node_mem_alloc+0x2be/0xa80 [ 209.989079][ T5775] bch2_fs_btree_cache_init+0x4f0/0xb60 [ 209.994956][ T5775] bch2_fs_open+0x4b24/0x59c0 [ 210.000069][ T5775] bch2_fs_get_tree+0x986/0x2330 [ 210.005246][ T5775] vfs_get_tree+0xb1/0x5a0 [ 210.010017][ T5775] do_new_mount+0x71f/0x15e0 [ 210.014822][ T5775] path_mount+0x742/0x1f10 [ 210.019358][ T5775] __se_sys_mount+0x71f/0x800 [ 210.024389][ T5775] __x64_sys_mount+0xe4/0x150 [ 210.029297][ T5775] x64_sys_call+0x39bf/0x3c30 [ 210.034264][ T5775] do_syscall_64+0xcd/0x1e0 [ 210.039001][ T5775] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 210.045213][ T5775] [ 210.047658][ T5775] CPU: 1 UID: 0 PID: 5775 Comm: syz-executor412 Not tainted 6.13.0-syzkaller-09950-g60c828cf80c0 #0 [ 210.058753][ T5775] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 210.069084][ T5775] ===================================================== [ 210.076254][ T5775] Disabling lock debugging due to kernel taint [ 210.082609][ T5775] Kernel panic - not syncing: kmsan.panic set ... [ 210.089174][ T5775] CPU: 1 UID: 0 PID: 5775 Comm: syz-executor412 Tainted: G B 6.13.0-syzkaller-09950-g60c828cf80c0 #0 [ 210.101575][ T5775] Tainted: [B]=BAD_PAGE [ 210.105808][ T5775] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 210.115982][ T5775] Call Trace: [ 210.119402][ T5775] [ 210.122466][ T5775] dump_stack_lvl+0x216/0x2d0 [ 210.127290][ T5775] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 210.133276][ T5775] dump_stack+0x1e/0x24 [ 210.137547][ T5775] panic+0x4e2/0xcf0 [ 210.141688][ T5775] ? kmsan_get_metadata+0xf1/0x1c0 [ 210.147005][ T5775] kmsan_report+0x2c7/0x2d0 [ 210.151672][ T5775] ? _raw_spin_unlock_irqrestore+0x3f/0x60 [ 210.157643][ T5775] ? __msan_warning+0x95/0x120 [ 210.162527][ T5775] ? rw_aux_tree_set+0x4d2/0x580 [ 210.167612][ T5775] ? rw_aux_tree_insert_entry+0x6c3/0x970 [ 210.173480][ T5775] ? bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 210.179610][ T5775] ? bch2_bset_insert+0x1621/0x19f0 [ 210.184959][ T5775] ? bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 210.191113][ T5775] ? bch2_btree_insert_key_leaf+0x276/0x1050 [ 210.197261][ T5775] ? __bch2_trans_commit+0xbbb7/0xd310 [ 210.202858][ T5775] ? bch2_trans_mark_metadata_bucket+0x63b/0x1eb0 [ 210.209424][ T5775] ? bch2_trans_mark_dev_sb+0x858/0x10e0 [ 210.215228][ T5775] ? bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 210.221554][ T5775] ? bch2_trans_mark_dev_sbs+0x32/0x40 [ 210.227168][ T5775] ? bch2_fs_initialize+0x19cd/0x2f90 [ 210.232697][ T5775] ? bch2_fs_start+0x792/0xc20 [ 210.237602][ T5775] ? bch2_fs_get_tree+0x143a/0x2330 [ 210.242944][ T5775] ? vfs_get_tree+0xb1/0x5a0 [ 210.247690][ T5775] ? do_new_mount+0x71f/0x15e0 [ 210.252660][ T5775] ? path_mount+0x742/0x1f10 [ 210.257373][ T5775] ? __se_sys_mount+0x71f/0x800 [ 210.262379][ T5775] ? __x64_sys_mount+0xe4/0x150 [ 210.267389][ T5775] ? x64_sys_call+0x39bf/0x3c30 [ 210.272376][ T5775] ? do_syscall_64+0xcd/0x1e0 [ 210.277213][ T5775] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 210.283429][ T5775] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 210.289384][ T5775] ? rw_aux_tree_set+0x3f/0x580 [ 210.294433][ T5775] ? filter_irq_stacks+0x60/0x1a0 [ 210.299703][ T5775] ? stack_depot_save_flags+0x2c/0x750 [ 210.305350][ T5775] ? kmsan_get_metadata+0x13e/0x1c0 [ 210.310775][ T5775] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 210.317316][ T5775] ? kmsan_get_metadata+0x13e/0x1c0 [ 210.322725][ T5775] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 210.328801][ T5775] __msan_warning+0x95/0x120 [ 210.333571][ T5775] rw_aux_tree_set+0x4d2/0x580 [ 210.338467][ T5775] ? bset_aux_tree_verify+0x44d/0x4a0 [ 210.344022][ T5775] rw_aux_tree_insert_entry+0x6c3/0x970 [ 210.349730][ T5775] bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 210.355682][ T5775] ? bch2_bkey_pack_key+0x1745/0x1860 [ 210.361244][ T5775] bch2_bset_insert+0x1621/0x19f0 [ 210.366433][ T5775] ? kmsan_get_metadata+0x13e/0x1c0 [ 210.371800][ T5775] bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 210.377784][ T5775] ? __msan_memcpy+0x108/0x1c0 [ 210.382732][ T5775] bch2_btree_insert_key_leaf+0x276/0x1050 [ 210.388715][ T5775] __bch2_trans_commit+0xbbb7/0xd310 [ 210.394492][ T5775] bch2_trans_mark_metadata_bucket+0x63b/0x1eb0 [ 210.400921][ T5775] ? bch2_trans_start_alloc_update_noupdate+0x179/0x12f0 [ 210.408322][ T5775] bch2_trans_mark_dev_sb+0x858/0x10e0 [ 210.414010][ T5775] bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 210.420164][ T5775] bch2_trans_mark_dev_sbs+0x32/0x40 [ 210.425607][ T5775] bch2_fs_initialize+0x19cd/0x2f90 [ 210.430970][ T5775] ? kmsan_internal_poison_memory+0x7d/0x90 [ 210.437068][ T5775] ? kmsan_internal_poison_memory+0x49/0x90 [ 210.443127][ T5775] ? kmsan_slab_free+0xd0/0x140 [ 210.448123][ T5775] ? kfree+0x240/0xdb0 [ 210.452353][ T5775] ? bch2_printbuf_exit+0x9b/0xd0 [ 210.457577][ T5775] ? print_mount_opts+0x4ca/0x4f0 [ 210.462806][ T5775] ? bch2_fs_start+0x55/0xc20 [ 210.467638][ T5775] ? bch2_fs_get_tree+0x143a/0x2330 [ 210.472976][ T5775] ? vfs_get_tree+0xb1/0x5a0 [ 210.477787][ T5775] ? do_new_mount+0x71f/0x15e0 [ 210.482704][ T5775] ? path_mount+0x742/0x1f10 [ 210.487423][ T5775] ? __se_sys_mount+0x71f/0x800 [ 210.492528][ T5775] ? __x64_sys_mount+0xe4/0x150 [ 210.497682][ T5775] ? x64_sys_call+0x39bf/0x3c30 [ 210.502665][ T5775] ? do_syscall_64+0xcd/0x1e0 [ 210.507522][ T5775] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 210.513850][ T5775] ? kmsan_get_metadata+0x13e/0x1c0 [ 210.519203][ T5775] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 210.525165][ T5775] ? kfree+0x1a7/0xdb0 [ 210.529421][ T5775] ? filter_irq_stacks+0x60/0x1a0 [ 210.534643][ T5775] ? kmsan_get_metadata+0x13e/0x1c0 [ 210.540010][ T5775] ? kmsan_get_metadata+0x13e/0x1c0 [ 210.545412][ T5775] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 210.551373][ T5775] ? kmsan_get_metadata+0x13e/0x1c0 [ 210.556730][ T5775] ? kmsan_get_metadata+0x13e/0x1c0 [ 210.562113][ T5775] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 210.568169][ T5775] ? kmsan_get_metadata+0x13e/0x1c0 [ 210.573563][ T5775] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 210.580278][ T5775] ? llist_reverse_order+0x102/0x130 [ 210.585773][ T5775] ? kmsan_internal_unpoison_memory+0x14/0x20 [ 210.592171][ T5775] bch2_fs_start+0x792/0xc20 [ 210.596950][ T5775] bch2_fs_get_tree+0x143a/0x2330 [ 210.602236][ T5775] vfs_get_tree+0xb1/0x5a0 [ 210.606786][ T5775] ? mount_capable+0x97/0x120 [ 210.611637][ T5775] do_new_mount+0x71f/0x15e0 [ 210.616364][ T5775] ? kmsan_get_metadata+0x13e/0x1c0 [ 210.621808][ T5775] path_mount+0x742/0x1f10 [ 210.626370][ T5775] ? user_path_at+0x374/0x3e0 [ 210.631241][ T5775] __se_sys_mount+0x71f/0x800 [ 210.636152][ T5775] __x64_sys_mount+0xe4/0x150 [ 210.640993][ T5775] x64_sys_call+0x39bf/0x3c30 [ 210.645836][ T5775] do_syscall_64+0xcd/0x1e0 [ 210.650523][ T5775] ? clear_bhb_loop+0x25/0x80 [ 210.655411][ T5775] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 210.661585][ T5775] RIP: 0033:0x7f5b7514c12a [ 210.666134][ T5775] 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 [ 210.685948][ T5775] RSP: 002b:00007ffc2a9ba488 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 210.694518][ T5775] RAX: ffffffffffffffda RBX: 00007ffc2a9ba4a0 RCX: 00007f5b7514c12a [ 210.702634][ T5775] RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 00007ffc2a9ba4a0 [ 210.710810][ T5775] RBP: 0000000000000010 R08: 00007ffc2a9ba4e0 R09: 00000000000059d0 [ 210.718894][ T5775] R10: 0000000000000010 R11: 0000000000000282 R12: 0000000000000006 [ 210.726973][ T5775] R13: 00007ffc2a9ba4e0 R14: 0000000000000005 R15: 0000000001000000 [ 210.735061][ T5775] [ 210.738592][ T5775] Kernel Offset: disabled [ 210.743036][ T5775] Rebooting in 86400 seconds..