./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1715519940 <...> Warning: Permanently added '10.128.0.160' (ED25519) to the list of known hosts. execve("./syz-executor1715519940", ["./syz-executor1715519940"], 0x7ffe3e08c7c0 /* 10 vars */) = 0 brk(NULL) = 0x55556637d000 brk(0x55556637dd00) = 0x55556637dd00 arch_prctl(ARCH_SET_FS, 0x55556637d380) = 0 set_tid_address(0x55556637d650) = 5781 set_robust_list(0x55556637d660, 24) = 0 rseq(0x55556637dca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1715519940", 4096) = 28 getrandom("\x95\x5b\x65\x8d\x20\x75\x1f\x73", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556637dd00 brk(0x55556639ed00) = 0x55556639ed00 brk(0x55556639f000) = 0x55556639f000 mprotect(0x7f321c4ad000, 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=0x55556637d650) = 5782 ./strace-static-x86_64: Process 5782 attached [pid 5782] set_robust_list(0x55556637d660, 24) = 0 [pid 5782] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5782] setpgid(0, 0) = 0 [pid 5782] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5782] write(3, "1000", 4) = 4 [pid 5782] close(3executing program ) = 0 [pid 5782] write(1, "executing program\n", 18) = 18 [pid 5782] memfd_create("syzkaller", 0) = 3 [pid 5782] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3213e00000 [pid 5782] 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 5782] munmap(0x7f3213e00000, 138412032) = 0 [pid 5782] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5782] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5782] close(3) = 0 [pid 5782] close(4) = 0 [pid 5782] mkdir("./file1", 0777) = 0 [ 183.423347][ T5782] loop0: detected capacity change from 0 to 32768 [ 183.553098][ T5782] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=errors=continue,metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names [ 183.570262][ T5782] bcachefs (loop0): initializing new filesystem [ 183.582887][ T5782] bcachefs (loop0): going read-write [ 183.592427][ T5782] bcachefs (loop0): marking superblocks [ 183.618588][ T5782] ===================================================== [ 183.625998][ T5782] BUG: KMSAN: uninit-value in rw_aux_tree_set+0x4d2/0x580 [ 183.633426][ T5782] rw_aux_tree_set+0x4d2/0x580 [ 183.638374][ T5782] rw_aux_tree_insert_entry+0x6c3/0x970 [ 183.644200][ T5782] bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 183.650168][ T5782] bch2_bset_insert+0x1621/0x19f0 [ 183.655433][ T5782] bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 183.661552][ T5782] bch2_btree_insert_key_leaf+0x276/0x1050 [ 183.667480][ T5782] __bch2_trans_commit+0xaf5e/0xd190 [ 183.673034][ T5782] bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 183.679464][ T5782] bch2_trans_mark_dev_sb+0x858/0x10e0 [ 183.685197][ T5782] bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 183.691454][ T5782] bch2_trans_mark_dev_sbs+0x32/0x40 [ 183.696854][ T5782] bch2_fs_initialize+0x19bd/0x35d0 [ 183.702304][ T5782] bch2_fs_start+0x77d/0xbd0 [ 183.707083][ T5782] bch2_fs_get_tree+0x13ea/0x22d0 [ 183.712368][ T5782] vfs_get_tree+0xb1/0x5a0 [ 183.716999][ T5782] do_new_mount+0x71f/0x15e0 [ 183.721880][ T5782] path_mount+0x742/0x1f10 [ 183.726480][ T5782] __se_sys_mount+0x722/0x810 [ 183.731421][ T5782] __x64_sys_mount+0xe4/0x150 [ 183.736243][ T5782] x64_sys_call+0x39bf/0x3c30 [ 183.741236][ T5782] do_syscall_64+0xcd/0x1e0 [ 183.745901][ T5782] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 183.752034][ T5782] [ 183.754432][ T5782] Uninit was created at: [ 183.758828][ T5782] ___kmalloc_large_node+0x22c/0x370 [ 183.764373][ T5782] __kmalloc_large_node_noprof+0x3f/0x1e0 [ 183.770285][ T5782] __kmalloc_node_noprof+0xc96/0x1250 [ 183.775900][ T5782] __kvmalloc_node_noprof+0xc0/0x2d0 [ 183.781429][ T5782] __bch2_btree_node_mem_alloc+0x2be/0xa80 [ 183.787343][ T5782] bch2_fs_btree_cache_init+0x4e4/0xb50 [ 183.793199][ T5782] bch2_fs_open+0x4d3a/0x5b40 [ 183.798037][ T5782] bch2_fs_get_tree+0x983/0x22d0 [ 183.803224][ T5782] vfs_get_tree+0xb1/0x5a0 [ 183.807859][ T5782] do_new_mount+0x71f/0x15e0 [ 183.812720][ T5782] path_mount+0x742/0x1f10 [ 183.817328][ T5782] __se_sys_mount+0x722/0x810 [ 183.822319][ T5782] __x64_sys_mount+0xe4/0x150 [ 183.827139][ T5782] x64_sys_call+0x39bf/0x3c30 [ 183.832057][ T5782] do_syscall_64+0xcd/0x1e0 [ 183.836705][ T5782] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 183.842880][ T5782] [ 183.845308][ T5782] CPU: 0 UID: 0 PID: 5782 Comm: syz-executor171 Not tainted 6.13.0-rc3-syzkaller-00044-gaef25be35d23 #0 [ 183.856741][ T5782] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 [ 183.867016][ T5782] ===================================================== [ 183.874123][ T5782] Disabling lock debugging due to kernel taint [ 183.880378][ T5782] Kernel panic - not syncing: kmsan.panic set ... [ 183.886905][ T5782] CPU: 0 UID: 0 PID: 5782 Comm: syz-executor171 Tainted: G B 6.13.0-rc3-syzkaller-00044-gaef25be35d23 #0 [ 183.899680][ T5782] Tainted: [B]=BAD_PAGE [ 183.903886][ T5782] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 [ 183.914029][ T5782] Call Trace: [ 183.917369][ T5782] [ 183.920355][ T5782] dump_stack_lvl+0x216/0x2d0 [ 183.925156][ T5782] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 183.931104][ T5782] dump_stack+0x1e/0x24 [ 183.935430][ T5782] panic+0x4e2/0xcf0 [ 183.939432][ T5782] ? kmsan_get_metadata+0xf1/0x1c0 [ 183.944681][ T5782] kmsan_report+0x2c7/0x2d0 [ 183.949356][ T5782] ? _raw_spin_unlock_irqrestore+0x3f/0x60 [ 183.955320][ T5782] ? __msan_warning+0x95/0x120 [ 183.960277][ T5782] ? rw_aux_tree_set+0x4d2/0x580 [ 183.965309][ T5782] ? rw_aux_tree_insert_entry+0x6c3/0x970 [ 183.971136][ T5782] ? bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 183.977219][ T5782] ? bch2_bset_insert+0x1621/0x19f0 [ 183.982511][ T5782] ? bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 183.988603][ T5782] ? bch2_btree_insert_key_leaf+0x276/0x1050 [ 183.994743][ T5782] ? __bch2_trans_commit+0xaf5e/0xd190 [ 184.000341][ T5782] ? bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 184.006948][ T5782] ? bch2_trans_mark_dev_sb+0x858/0x10e0 [ 184.012713][ T5782] ? bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 184.019045][ T5782] ? bch2_trans_mark_dev_sbs+0x32/0x40 [ 184.024616][ T5782] ? bch2_fs_initialize+0x19bd/0x35d0 [ 184.030093][ T5782] ? bch2_fs_start+0x77d/0xbd0 [ 184.035003][ T5782] ? bch2_fs_get_tree+0x13ea/0x22d0 [ 184.040363][ T5782] ? vfs_get_tree+0xb1/0x5a0 [ 184.045072][ T5782] ? do_new_mount+0x71f/0x15e0 [ 184.049934][ T5782] ? path_mount+0x742/0x1f10 [ 184.054658][ T5782] ? __se_sys_mount+0x722/0x810 [ 184.059606][ T5782] ? __x64_sys_mount+0xe4/0x150 [ 184.064556][ T5782] ? x64_sys_call+0x39bf/0x3c30 [ 184.069559][ T5782] ? do_syscall_64+0xcd/0x1e0 [ 184.074345][ T5782] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 184.080568][ T5782] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 184.086550][ T5782] ? filter_irq_stacks+0x164/0x1a0 [ 184.092432][ T5782] ? stack_depot_save_flags+0x2c/0x750 [ 184.098009][ T5782] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.103334][ T5782] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 184.109886][ T5782] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.115192][ T5782] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 184.121119][ T5782] __msan_warning+0x95/0x120 [ 184.125857][ T5782] rw_aux_tree_set+0x4d2/0x580 [ 184.130797][ T5782] ? bset_aux_tree_verify+0x44d/0x4a0 [ 184.136296][ T5782] rw_aux_tree_insert_entry+0x6c3/0x970 [ 184.141995][ T5782] bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 184.147937][ T5782] ? bch2_bkey_pack_key+0x1745/0x1860 [ 184.153520][ T5782] bch2_bset_insert+0x1621/0x19f0 [ 184.158640][ T5782] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.163978][ T5782] bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 184.169916][ T5782] ? __msan_memcpy+0x108/0x1c0 [ 184.174849][ T5782] bch2_btree_insert_key_leaf+0x276/0x1050 [ 184.180787][ T5782] __bch2_trans_commit+0xaf5e/0xd190 [ 184.186219][ T5782] bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 184.192593][ T5782] ? bch2_trans_start_alloc_update_noupdate+0x179/0x12f0 [ 184.199757][ T5782] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.205091][ T5782] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 184.211110][ T5782] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.216446][ T5782] ? kmsan_internal_poison_memory+0x90/0x90 [ 184.222559][ T5782] bch2_trans_mark_dev_sb+0x858/0x10e0 [ 184.228341][ T5782] bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 184.234525][ T5782] bch2_trans_mark_dev_sbs+0x32/0x40 [ 184.239926][ T5782] bch2_fs_initialize+0x19bd/0x35d0 [ 184.245234][ T5782] ? kmsan_internal_poison_memory+0x49/0x90 [ 184.251369][ T5782] ? kmsan_slab_free+0xd0/0x140 [ 184.256360][ T5782] ? kfree+0x240/0xdb0 [ 184.260561][ T5782] ? bch2_printbuf_exit+0x9b/0xd0 [ 184.265708][ T5782] ? print_mount_opts+0x4ca/0x4f0 [ 184.270855][ T5782] ? bch2_fs_start+0x59/0xbd0 [ 184.275826][ T5782] ? bch2_fs_get_tree+0x13ea/0x22d0 [ 184.281159][ T5782] ? vfs_get_tree+0xb1/0x5a0 [ 184.285941][ T5782] ? do_new_mount+0x71f/0x15e0 [ 184.290792][ T5782] ? path_mount+0x742/0x1f10 [ 184.295523][ T5782] ? __se_sys_mount+0x722/0x810 [ 184.300519][ T5782] ? __x64_sys_mount+0xe4/0x150 [ 184.305462][ T5782] ? x64_sys_call+0x39bf/0x3c30 [ 184.310437][ T5782] ? do_syscall_64+0xcd/0x1e0 [ 184.315204][ T5782] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 184.321422][ T5782] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.326728][ T5782] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 184.332663][ T5782] ? kfree+0x1a7/0xdb0 [ 184.336843][ T5782] ? filter_irq_stacks+0x60/0x1a0 [ 184.342004][ T5782] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.347329][ T5782] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.352664][ T5782] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 184.358725][ T5782] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.364045][ T5782] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.370121][ T5782] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 184.376082][ T5782] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.381410][ T5782] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 184.387896][ T5782] ? llist_reverse_order+0x102/0x130 [ 184.393284][ T5782] ? kmsan_internal_unpoison_memory+0x14/0x20 [ 184.399537][ T5782] ? __closure_wake_up+0x16a/0x180 [ 184.404776][ T5782] bch2_fs_start+0x77d/0xbd0 [ 184.409531][ T5782] bch2_fs_get_tree+0x13ea/0x22d0 [ 184.414783][ T5782] vfs_get_tree+0xb1/0x5a0 [ 184.419323][ T5782] ? mount_capable+0x97/0x120 [ 184.424114][ T5782] do_new_mount+0x71f/0x15e0 [ 184.428802][ T5782] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.434112][ T5782] path_mount+0x742/0x1f10 [ 184.438656][ T5782] ? user_path_at+0x374/0x3e0 [ 184.443480][ T5782] __se_sys_mount+0x722/0x810 [ 184.448336][ T5782] ? ptrace_notify+0x263/0x320 [ 184.453228][ T5782] __x64_sys_mount+0xe4/0x150 [ 184.458010][ T5782] x64_sys_call+0x39bf/0x3c30 [ 184.462818][ T5782] do_syscall_64+0xcd/0x1e0 [ 184.467420][ T5782] ? clear_bhb_loop+0x25/0x80 [ 184.472221][ T5782] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 184.478268][ T5782] RIP: 0033:0x7f321c435dea [ 184.482769][ T5782] 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 [ 184.502595][ T5782] RSP: 002b:00007fff9b26de18 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 184.511148][ T5782] RAX: ffffffffffffffda RBX: 00007fff9b26de30 RCX: 00007f321c435dea [ 184.519260][ T5782] RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 00007fff9b26de30 [ 184.527326][ T5782] RBP: 0000000000000010 R08: 00007fff9b26de70 R09: 00000000000059d0 [ 184.535389][ T5782] R10: 0000000000000010 R11: 0000000000000282 R12: 0000000000000004 [ 184.543438][ T5782] R13: 00007fff9b26de70 R14: 0000000000000003 R15: 0000000001000000 [ 184.551519][ T5782] [ 184.554896][ T5782] Kernel Offset: disabled [ 184.559294][ T5782] Rebooting in 86400 seconds..