./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor748088966 <...> Warning: Permanently added '10.128.10.14' (ED25519) to the list of known hosts. execve("./syz-executor748088966", ["./syz-executor748088966"], 0x7ffe30765740 /* 10 vars */) = 0 brk(NULL) = 0x55557eac0000 brk(0x55557eac0d00) = 0x55557eac0d00 arch_prctl(ARCH_SET_FS, 0x55557eac0380) = 0 set_tid_address(0x55557eac0650) = 5778 set_robust_list(0x55557eac0660, 24) = 0 rseq(0x55557eac0ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor748088966", 4096) = 27 getrandom("\x04\xec\x8a\xae\x75\x3c\xf2\xe3", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557eac0d00 brk(0x55557eae1d00) = 0x55557eae1d00 brk(0x55557eae2000) = 0x55557eae2000 mprotect(0x7f261cdf8000, 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=0x55557eac0650) = 5779 ./strace-static-x86_64: Process 5779 attached [pid 5779] set_robust_list(0x55557eac0660, 24) = 0 [pid 5779] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5779] setpgid(0, 0) = 0 [pid 5779] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5779] write(3, "1000", 4executing program ) = 4 [pid 5779] close(3) = 0 [pid 5779] write(1, "executing program\n", 18) = 18 [pid 5779] memfd_create("syzkaller", 0) = 3 [pid 5779] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2614800000 [pid 5779] 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 5779] munmap(0x7f2614800000, 138412032) = 0 [pid 5779] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5779] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5779] close(3) = 0 [pid 5779] close(4) = 0 [pid 5779] mkdir("./file1", 0777) = 0 [ 183.757733][ T5779] loop0: detected capacity change from 0 to 32768 [ 183.908079][ T5779] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=errors=continue,metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names [ 183.924983][ T5779] bcachefs (loop0): initializing new filesystem [ 183.936384][ T5779] bcachefs (loop0): going read-write [ 183.946709][ T5779] bcachefs (loop0): marking superblocks [ 183.972798][ T5779] ===================================================== [ 183.980090][ T5779] BUG: KMSAN: uninit-value in rw_aux_tree_set+0x4d2/0x580 [ 183.987452][ T5779] rw_aux_tree_set+0x4d2/0x580 [ 183.992316][ T5779] rw_aux_tree_insert_entry+0x6c3/0x970 [ 183.998133][ T5779] bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 184.004104][ T5779] bch2_bset_insert+0x1621/0x19f0 [ 184.009442][ T5779] bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 184.015557][ T5779] bch2_btree_insert_key_leaf+0x276/0x1050 [ 184.021555][ T5779] __bch2_trans_commit+0xaf5e/0xd190 [ 184.027167][ T5779] bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 184.033660][ T5779] bch2_trans_mark_dev_sb+0x858/0x10e0 [ 184.039397][ T5779] bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 184.045731][ T5779] bch2_trans_mark_dev_sbs+0x32/0x40 [ 184.051193][ T5779] bch2_fs_initialize+0x19bd/0x35d0 [ 184.056650][ T5779] bch2_fs_start+0x77d/0xbd0 [ 184.061446][ T5779] bch2_fs_get_tree+0x13ea/0x22d0 [ 184.066872][ T5779] vfs_get_tree+0xb1/0x5a0 [ 184.071488][ T5779] do_new_mount+0x71f/0x15e0 [ 184.076411][ T5779] path_mount+0x742/0x1f10 [ 184.081022][ T5779] __se_sys_mount+0x722/0x810 [ 184.086019][ T5779] __x64_sys_mount+0xe4/0x150 [ 184.090839][ T5779] x64_sys_call+0x39bf/0x3c30 [ 184.095793][ T5779] do_syscall_64+0xcd/0x1e0 [ 184.100517][ T5779] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 184.106828][ T5779] [ 184.109240][ T5779] Uninit was created at: [ 184.113652][ T5779] ___kmalloc_large_node+0x22c/0x370 [ 184.119456][ T5779] __kmalloc_large_node_noprof+0x3f/0x1e0 [ 184.125890][ T5779] __kmalloc_node_noprof+0xc96/0x1250 [ 184.131389][ T5779] __kvmalloc_node_noprof+0xc0/0x2d0 [ 184.136910][ T5779] __bch2_btree_node_mem_alloc+0x2be/0xa80 [ 184.142902][ T5779] bch2_fs_btree_cache_init+0x4e4/0xb50 [ 184.148796][ T5779] bch2_fs_open+0x4d3a/0x5b40 [ 184.153631][ T5779] bch2_fs_get_tree+0x983/0x22d0 [ 184.158869][ T5779] vfs_get_tree+0xb1/0x5a0 [ 184.163476][ T5779] do_new_mount+0x71f/0x15e0 [ 184.168323][ T5779] path_mount+0x742/0x1f10 [ 184.172934][ T5779] __se_sys_mount+0x722/0x810 [ 184.177947][ T5779] __x64_sys_mount+0xe4/0x150 [ 184.182780][ T5779] x64_sys_call+0x39bf/0x3c30 [ 184.187782][ T5779] do_syscall_64+0xcd/0x1e0 [ 184.192441][ T5779] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 184.198609][ T5779] [ 184.201051][ T5779] CPU: 1 UID: 0 PID: 5779 Comm: syz-executor748 Not tainted 6.13.0-rc4-syzkaller-00012-g9b2ffa6148b1 #0 [ 184.212561][ T5779] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 184.222947][ T5779] ===================================================== [ 184.230089][ T5779] Disabling lock debugging due to kernel taint [ 184.236449][ T5779] Kernel panic - not syncing: kmsan.panic set ... [ 184.242949][ T5779] CPU: 1 UID: 0 PID: 5779 Comm: syz-executor748 Tainted: G B 6.13.0-rc4-syzkaller-00012-g9b2ffa6148b1 #0 [ 184.255691][ T5779] Tainted: [B]=BAD_PAGE [ 184.259967][ T5779] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 184.270143][ T5779] Call Trace: [ 184.273530][ T5779] [ 184.276569][ T5779] dump_stack_lvl+0x216/0x2d0 [ 184.281516][ T5779] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 184.287450][ T5779] dump_stack+0x1e/0x24 [ 184.291729][ T5779] panic+0x4e2/0xcf0 [ 184.295764][ T5779] ? kmsan_get_metadata+0x71/0x1c0 [ 184.301047][ T5779] kmsan_report+0x2c7/0x2d0 [ 184.305637][ T5779] ? _raw_spin_unlock_irqrestore+0x3f/0x60 [ 184.311579][ T5779] ? __msan_warning+0x95/0x120 [ 184.316466][ T5779] ? rw_aux_tree_set+0x4d2/0x580 [ 184.321505][ T5779] ? rw_aux_tree_insert_entry+0x6c3/0x970 [ 184.327328][ T5779] ? bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 184.333459][ T5779] ? bch2_bset_insert+0x1621/0x19f0 [ 184.338756][ T5779] ? bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 184.344858][ T5779] ? bch2_btree_insert_key_leaf+0x276/0x1050 [ 184.350975][ T5779] ? __bch2_trans_commit+0xaf5e/0xd190 [ 184.356594][ T5779] ? bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 184.363133][ T5779] ? bch2_trans_mark_dev_sb+0x858/0x10e0 [ 184.368917][ T5779] ? bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 184.375324][ T5779] ? bch2_trans_mark_dev_sbs+0x32/0x40 [ 184.380985][ T5779] ? bch2_fs_initialize+0x19bd/0x35d0 [ 184.386501][ T5779] ? bch2_fs_start+0x77d/0xbd0 [ 184.391395][ T5779] ? bch2_fs_get_tree+0x13ea/0x22d0 [ 184.396705][ T5779] ? vfs_get_tree+0xb1/0x5a0 [ 184.401427][ T5779] ? do_new_mount+0x71f/0x15e0 [ 184.406288][ T5779] ? path_mount+0x742/0x1f10 [ 184.411006][ T5779] ? __se_sys_mount+0x722/0x810 [ 184.415950][ T5779] ? __x64_sys_mount+0xe4/0x150 [ 184.421001][ T5779] ? x64_sys_call+0x39bf/0x3c30 [ 184.426053][ T5779] ? do_syscall_64+0xcd/0x1e0 [ 184.430822][ T5779] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 184.437018][ T5779] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 184.442934][ T5779] ? filter_irq_stacks+0x164/0x1a0 [ 184.448175][ T5779] ? stack_depot_save_flags+0x2c/0x750 [ 184.453758][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.459152][ T5779] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 184.465623][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.471013][ T5779] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 184.476929][ T5779] __msan_warning+0x95/0x120 [ 184.481648][ T5779] rw_aux_tree_set+0x4d2/0x580 [ 184.486516][ T5779] ? bset_aux_tree_verify+0x44d/0x4a0 [ 184.492001][ T5779] rw_aux_tree_insert_entry+0x6c3/0x970 [ 184.497695][ T5779] bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 184.503712][ T5779] ? bch2_bkey_pack_key+0x1745/0x1860 [ 184.509246][ T5779] bch2_bset_insert+0x1621/0x19f0 [ 184.514384][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.519739][ T5779] bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 184.525670][ T5779] ? __msan_memcpy+0x108/0x1c0 [ 184.530592][ T5779] bch2_btree_insert_key_leaf+0x276/0x1050 [ 184.536575][ T5779] __bch2_trans_commit+0xaf5e/0xd190 [ 184.542071][ T5779] bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 184.548539][ T5779] ? bch2_trans_start_alloc_update_noupdate+0x179/0x12f0 [ 184.555795][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.561096][ T5779] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 184.567022][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.572319][ T5779] ? __pfx_kmsan_internal_set_shadow_origin+0x10/0x10 [ 184.579237][ T5779] bch2_trans_mark_dev_sb+0x858/0x10e0 [ 184.584879][ T5779] bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 184.590990][ T5779] bch2_trans_mark_dev_sbs+0x32/0x40 [ 184.596396][ T5779] bch2_fs_initialize+0x19bd/0x35d0 [ 184.601730][ T5779] ? kmsan_internal_poison_memory+0x49/0x90 [ 184.607775][ T5779] ? kmsan_slab_free+0xd0/0x140 [ 184.612763][ T5779] ? kfree+0x240/0xdb0 [ 184.616946][ T5779] ? bch2_printbuf_exit+0x9b/0xd0 [ 184.622096][ T5779] ? print_mount_opts+0x4ca/0x4f0 [ 184.627303][ T5779] ? bch2_fs_start+0x59/0xbd0 [ 184.632177][ T5779] ? bch2_fs_get_tree+0x13ea/0x22d0 [ 184.637506][ T5779] ? vfs_get_tree+0xb1/0x5a0 [ 184.642250][ T5779] ? do_new_mount+0x71f/0x15e0 [ 184.647124][ T5779] ? path_mount+0x742/0x1f10 [ 184.651857][ T5779] ? __se_sys_mount+0x722/0x810 [ 184.656812][ T5779] ? __x64_sys_mount+0xe4/0x150 [ 184.661784][ T5779] ? x64_sys_call+0x39bf/0x3c30 [ 184.666839][ T5779] ? do_syscall_64+0xcd/0x1e0 [ 184.671606][ T5779] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 184.677811][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.683113][ T5779] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 184.689025][ T5779] ? kfree+0x1a7/0xdb0 [ 184.693203][ T5779] ? filter_irq_stacks+0x60/0x1a0 [ 184.698356][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.703656][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.708955][ T5779] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 184.714867][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.720165][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.725466][ T5779] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 184.731387][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.736716][ T5779] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 184.743216][ T5779] ? llist_reverse_order+0x102/0x130 [ 184.748618][ T5779] ? kmsan_internal_unpoison_memory+0x14/0x20 [ 184.754833][ T5779] ? __closure_wake_up+0x16a/0x180 [ 184.760064][ T5779] bch2_fs_start+0x77d/0xbd0 [ 184.764827][ T5779] bch2_fs_get_tree+0x13ea/0x22d0 [ 184.770068][ T5779] vfs_get_tree+0xb1/0x5a0 [ 184.774618][ T5779] ? mount_capable+0x97/0x120 [ 184.779415][ T5779] do_new_mount+0x71f/0x15e0 [ 184.784096][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.789437][ T5779] path_mount+0x742/0x1f10 [ 184.793982][ T5779] ? user_path_at+0x374/0x3e0 [ 184.798810][ T5779] __se_sys_mount+0x722/0x810 [ 184.803655][ T5779] ? ptrace_notify+0x263/0x320 [ 184.808549][ T5779] __x64_sys_mount+0xe4/0x150 [ 184.813331][ T5779] x64_sys_call+0x39bf/0x3c30 [ 184.818137][ T5779] do_syscall_64+0xcd/0x1e0 [ 184.822739][ T5779] ? clear_bhb_loop+0x25/0x80 [ 184.827543][ T5779] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 184.833576][ T5779] RIP: 0033:0x7f261cd80dea [ 184.838076][ T5779] 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 [ 184.857813][ T5779] RSP: 002b:00007ffeed1685c8 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 184.866520][ T5779] RAX: ffffffffffffffda RBX: 00007ffeed1685e0 RCX: 00007f261cd80dea [ 184.874612][ T5779] RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 00007ffeed1685e0 [ 184.882676][ T5779] RBP: 0000000000000010 R08: 00007ffeed168620 R09: 00000000000059e2 [ 184.890753][ T5779] R10: 0000000000000010 R11: 0000000000000282 R12: 0000000000000004 [ 184.899164][ T5779] R13: 00007ffeed168620 R14: 0000000000000003 R15: 0000000001000000 [ 184.907250][ T5779] [ 184.910692][ T5779] Kernel Offset: disabled [ 184.915088][ T5779] Rebooting in 86400 seconds..