./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2884344720 <...> Warning: Permanently added '10.128.1.132' (ED25519) to the list of known hosts. execve("./syz-executor2884344720", ["./syz-executor2884344720"], 0x7ffcae8ee850 /* 10 vars */) = 0 brk(NULL) = 0x55559135e000 brk(0x55559135ed00) = 0x55559135ed00 arch_prctl(ARCH_SET_FS, 0x55559135e380) = 0 set_tid_address(0x55559135e650) = 5774 set_robust_list(0x55559135e660, 24) = 0 rseq(0x55559135eca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2884344720", 4096) = 28 getrandom("\x2c\xfb\x39\x90\x64\x11\xc2\xf2", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55559135ed00 brk(0x55559137fd00) = 0x55559137fd00 brk(0x555591380000) = 0x555591380000 mprotect(0x7f6cdf1e6000, 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=0x55559135e650) = 5775 ./strace-static-x86_64: Process 5775 attached [pid 5775] set_robust_list(0x55559135e660, 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 executing program [pid 5775] write(1, "executing program\n", 18) = 18 [pid 5775] memfd_create("syzkaller", 0) = 3 [pid 5775] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6cd6c00000 [pid 5775] 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 5775] munmap(0x7f6cd6c00000, 138412032) = 0 [pid 5775] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5775] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5775] close(3) = 0 [pid 5775] close(4) = 0 [pid 5775] mkdir("./file1", 0777) = 0 [ 225.091086][ T5775] loop0: detected capacity change from 0 to 32768 [ 225.232321][ T5775] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=errors=continue,metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names [ 225.249574][ T5775] bcachefs (loop0): initializing new filesystem [ 225.263543][ T5775] bcachefs (loop0): going read-write [ 225.274343][ T5775] bcachefs (loop0): marking superblocks [ 225.307691][ T5775] ===================================================== [ 225.315317][ T5775] BUG: KMSAN: uninit-value in rw_aux_tree_set+0x4d2/0x580 [ 225.322887][ T5775] rw_aux_tree_set+0x4d2/0x580 [ 225.327877][ T5775] rw_aux_tree_insert_entry+0x6c3/0x970 [ 225.333829][ T5775] bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 225.340006][ T5775] bch2_bset_insert+0x1621/0x19f0 [ 225.345225][ T5775] bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 225.351383][ T5775] bch2_btree_insert_key_leaf+0x276/0x1050 [ 225.357437][ T5775] __bch2_trans_commit+0xaf5e/0xd190 [ 225.363243][ T5775] bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 225.370036][ T5775] bch2_trans_mark_dev_sb+0x858/0x10e0 [ 225.375784][ T5775] bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 225.382177][ T5775] bch2_trans_mark_dev_sbs+0x32/0x40 [ 225.387695][ T5775] bch2_fs_initialize+0x19bd/0x35d0 [ 225.393360][ T5775] bch2_fs_start+0x77d/0xbd0 [ 225.398288][ T5775] bch2_fs_get_tree+0x13ea/0x22d0 [ 225.403658][ T5775] vfs_get_tree+0xb1/0x5a0 [ 225.408352][ T5775] do_new_mount+0x71f/0x15e0 [ 225.413663][ T5775] path_mount+0x742/0x1f10 [ 225.418273][ T5775] __se_sys_mount+0x722/0x810 [ 225.423297][ T5775] __x64_sys_mount+0xe4/0x150 [ 225.428264][ T5775] x64_sys_call+0x39bf/0x3c30 [ 225.433354][ T5775] do_syscall_64+0xcd/0x1e0 [ 225.438099][ T5775] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 225.444410][ T5775] [ 225.446843][ T5775] Uninit was created at: [ 225.451592][ T5775] ___kmalloc_large_node+0x22c/0x370 [ 225.457155][ T5775] __kmalloc_large_node_noprof+0x3f/0x1e0 [ 225.463293][ T5775] __kmalloc_node_noprof+0xc96/0x1250 [ 225.468945][ T5775] __kvmalloc_node_noprof+0xc0/0x2d0 [ 225.474651][ T5775] __bch2_btree_node_mem_alloc+0x2be/0xa80 [ 225.480837][ T5775] bch2_fs_btree_cache_init+0x4e4/0xb50 [ 225.486628][ T5775] bch2_fs_open+0x4d3a/0x5b40 [ 225.491632][ T5775] bch2_fs_get_tree+0x983/0x22d0 [ 225.496788][ T5775] vfs_get_tree+0xb1/0x5a0 [ 225.501534][ T5775] do_new_mount+0x71f/0x15e0 [ 225.506342][ T5775] path_mount+0x742/0x1f10 [ 225.511206][ T5775] __se_sys_mount+0x722/0x810 [ 225.516081][ T5775] __x64_sys_mount+0xe4/0x150 [ 225.521114][ T5775] x64_sys_call+0x39bf/0x3c30 [ 225.526049][ T5775] do_syscall_64+0xcd/0x1e0 [ 225.530911][ T5775] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 225.537098][ T5775] [ 225.539738][ T5775] CPU: 1 UID: 0 PID: 5775 Comm: syz-executor288 Not tainted 6.13.0-rc6-syzkaller-00213-ge0daef7de1ac #0 [ 225.551212][ T5775] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 225.561563][ T5775] ===================================================== [ 225.568632][ T5775] Disabling lock debugging due to kernel taint [ 225.575143][ T5775] Kernel panic - not syncing: kmsan.panic set ... [ 225.581717][ T5775] CPU: 1 UID: 0 PID: 5775 Comm: syz-executor288 Tainted: G B 6.13.0-rc6-syzkaller-00213-ge0daef7de1ac #0 [ 225.594491][ T5775] Tainted: [B]=BAD_PAGE [ 225.598729][ T5775] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 225.608920][ T5775] Call Trace: [ 225.612343][ T5775] [ 225.615402][ T5775] dump_stack_lvl+0x216/0x2d0 [ 225.620255][ T5775] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 225.626254][ T5775] dump_stack+0x1e/0x24 [ 225.630604][ T5775] panic+0x4e2/0xcf0 [ 225.634663][ T5775] ? kmsan_get_metadata+0xd1/0x1c0 [ 225.639943][ T5775] kmsan_report+0x2c7/0x2d0 [ 225.644616][ T5775] ? _raw_spin_unlock_irqrestore+0x3f/0x60 [ 225.650621][ T5775] ? __msan_warning+0x95/0x120 [ 225.655565][ T5775] ? rw_aux_tree_set+0x4d2/0x580 [ 225.660650][ T5775] ? rw_aux_tree_insert_entry+0x6c3/0x970 [ 225.666535][ T5775] ? bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 225.672759][ T5775] ? bch2_bset_insert+0x1621/0x19f0 [ 225.678280][ T5775] ? bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 225.684470][ T5775] ? bch2_btree_insert_key_leaf+0x276/0x1050 [ 225.690630][ T5775] ? __bch2_trans_commit+0xaf5e/0xd190 [ 225.696251][ T5775] ? bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 225.703032][ T5775] ? bch2_trans_mark_dev_sb+0x858/0x10e0 [ 225.708836][ T5775] ? bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 225.715195][ T5775] ? bch2_trans_mark_dev_sbs+0x32/0x40 [ 225.720825][ T5775] ? bch2_fs_initialize+0x19bd/0x35d0 [ 225.726385][ T5775] ? bch2_fs_start+0x77d/0xbd0 [ 225.731331][ T5775] ? bch2_fs_get_tree+0x13ea/0x22d0 [ 225.736682][ T5775] ? vfs_get_tree+0xb1/0x5a0 [ 225.741476][ T5775] ? do_new_mount+0x71f/0x15e0 [ 225.746457][ T5775] ? path_mount+0x742/0x1f10 [ 225.751208][ T5775] ? __se_sys_mount+0x722/0x810 [ 225.756202][ T5775] ? __x64_sys_mount+0xe4/0x150 [ 225.761197][ T5775] ? x64_sys_call+0x39bf/0x3c30 [ 225.766231][ T5775] ? do_syscall_64+0xcd/0x1e0 [ 225.771054][ T5775] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 225.777341][ T5775] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 225.783338][ T5775] ? filter_irq_stacks+0x164/0x1a0 [ 225.788653][ T5775] ? stack_depot_save_flags+0x2c/0x750 [ 225.794340][ T5775] ? kmsan_get_metadata+0x13e/0x1c0 [ 225.799715][ T5775] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 225.806329][ T5775] ? kmsan_get_metadata+0x13e/0x1c0 [ 225.811719][ T5775] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 225.817767][ T5775] __msan_warning+0x95/0x120 [ 225.822577][ T5775] rw_aux_tree_set+0x4d2/0x580 [ 225.827560][ T5775] ? bset_aux_tree_verify+0x44d/0x4a0 [ 225.833146][ T5775] rw_aux_tree_insert_entry+0x6c3/0x970 [ 225.838893][ T5775] bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 225.844920][ T5775] ? bch2_bkey_pack_key+0x1745/0x1860 [ 225.850535][ T5775] bch2_bset_insert+0x1621/0x19f0 [ 225.855708][ T5775] ? kmsan_get_metadata+0x13e/0x1c0 [ 225.861084][ T5775] bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 225.867092][ T5775] ? __msan_memcpy+0x108/0x1c0 [ 225.872105][ T5775] bch2_btree_insert_key_leaf+0x276/0x1050 [ 225.878120][ T5775] __bch2_trans_commit+0xaf5e/0xd190 [ 225.883622][ T5775] bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 225.890098][ T5775] ? bch2_trans_start_alloc_update_noupdate+0x179/0x12f0 [ 225.897349][ T5775] ? kmsan_get_metadata+0x13e/0x1c0 [ 225.902727][ T5775] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 225.909030][ T5775] ? kmsan_get_metadata+0x13e/0x1c0 [ 225.914410][ T5775] ? kmsan_internal_set_shadow_origin+0x60/0x100 [ 225.921047][ T5775] bch2_trans_mark_dev_sb+0x858/0x10e0 [ 225.926798][ T5775] bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 225.933142][ T5775] bch2_trans_mark_dev_sbs+0x32/0x40 [ 225.938734][ T5775] bch2_fs_initialize+0x19bd/0x35d0 [ 225.944133][ T5775] ? kmsan_internal_poison_memory+0x49/0x90 [ 225.950312][ T5775] ? kmsan_slab_free+0xd0/0x140 [ 225.955365][ T5775] ? kfree+0x240/0xdb0 [ 225.959603][ T5775] ? bch2_printbuf_exit+0x9b/0xd0 [ 225.964834][ T5775] ? print_mount_opts+0x4ca/0x4f0 [ 225.970259][ T5775] ? bch2_fs_start+0x59/0xbd0 [ 225.975116][ T5775] ? bch2_fs_get_tree+0x13ea/0x22d0 [ 225.980475][ T5775] ? vfs_get_tree+0xb1/0x5a0 [ 225.985243][ T5775] ? do_new_mount+0x71f/0x15e0 [ 225.990141][ T5775] ? path_mount+0x742/0x1f10 [ 225.994949][ T5775] ? __se_sys_mount+0x722/0x810 [ 225.999969][ T5775] ? __x64_sys_mount+0xe4/0x150 [ 226.005051][ T5775] ? x64_sys_call+0x39bf/0x3c30 [ 226.010080][ T5775] ? do_syscall_64+0xcd/0x1e0 [ 226.014904][ T5775] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 226.021212][ T5775] ? kmsan_get_metadata+0x13e/0x1c0 [ 226.026583][ T5775] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 226.032559][ T5775] ? kfree+0x1a7/0xdb0 [ 226.036799][ T5775] ? filter_irq_stacks+0x60/0x1a0 [ 226.041995][ T5775] ? kmsan_get_metadata+0x13e/0x1c0 [ 226.047471][ T5775] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 226.054052][ T5775] ? kmsan_internal_unpoison_memory+0x14/0x20 [ 226.060330][ T5775] ? kmsan_get_metadata+0x13e/0x1c0 [ 226.065679][ T5775] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 226.071648][ T5775] ? kmsan_get_metadata+0x13e/0x1c0 [ 226.077163][ T5775] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 226.083721][ T5775] ? llist_reverse_order+0x102/0x130 [ 226.089279][ T5775] ? kmsan_internal_unpoison_memory+0x14/0x20 [ 226.095619][ T5775] ? __closure_wake_up+0x16a/0x180 [ 226.100912][ T5775] bch2_fs_start+0x77d/0xbd0 [ 226.105740][ T5775] bch2_fs_get_tree+0x13ea/0x22d0 [ 226.111110][ T5775] vfs_get_tree+0xb1/0x5a0 [ 226.115725][ T5775] ? mount_capable+0x97/0x120 [ 226.120601][ T5775] do_new_mount+0x71f/0x15e0 [ 226.125335][ T5775] ? kmsan_get_metadata+0x13e/0x1c0 [ 226.130699][ T5775] path_mount+0x742/0x1f10 [ 226.135255][ T5775] ? user_path_at+0x374/0x3e0 [ 226.140155][ T5775] __se_sys_mount+0x722/0x810 [ 226.145056][ T5775] ? ptrace_notify+0x263/0x320 [ 226.150057][ T5775] __x64_sys_mount+0xe4/0x150 [ 226.154883][ T5775] x64_sys_call+0x39bf/0x3c30 [ 226.159747][ T5775] do_syscall_64+0xcd/0x1e0 [ 226.164483][ T5775] ? clear_bhb_loop+0x25/0x80 [ 226.169375][ T5775] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 226.175532][ T5775] RIP: 0033:0x7f6cdf16edea [ 226.180136][ 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 [ 226.199922][ T5775] RSP: 002b:00007ffdbce1d1b8 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 226.208499][ T5775] RAX: ffffffffffffffda RBX: 00007ffdbce1d1d0 RCX: 00007f6cdf16edea [ 226.216614][ T5775] RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 00007ffdbce1d1d0 [ 226.224763][ T5775] RBP: 0000000000000004 R08: 00007ffdbce1d210 R09: 00000000000059d0 [ 226.232891][ T5775] R10: 0000000002000012 R11: 0000000000000282 R12: 0000000002000012 [ 226.241046][ T5775] R13: 00007ffdbce1d210 R14: 0000000000000003 R15: 0000000001000000 [ 226.249174][ T5775] [ 226.252639][ T5775] Kernel Offset: disabled [ 226.257089][ T5775] Rebooting in 86400 seconds..