./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1667531102 <...> Warning: Permanently added '10.128.1.186' (ED25519) to the list of known hosts. execve("./syz-executor1667531102", ["./syz-executor1667531102"], 0x7fff3766dcd0 /* 10 vars */) = 0 brk(NULL) = 0x555558c7f000 brk(0x555558c7fd00) = 0x555558c7fd00 arch_prctl(ARCH_SET_FS, 0x555558c7f380) = 0 set_tid_address(0x555558c7f650) = 5774 set_robust_list(0x555558c7f660, 24) = 0 rseq(0x555558c7fca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1667531102", 4096) = 28 getrandom("\x99\xce\x24\xe6\x90\x20\x9f\xe9", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555558c7fd00 brk(0x555558ca0d00) = 0x555558ca0d00 brk(0x555558ca1000) = 0x555558ca1000 mprotect(0x7fa36df25000, 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=0x555558c7f650) = 5775 ./strace-static-x86_64: Process 5775 attached [pid 5775] set_robust_list(0x555558c7f660, 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_CLOEXECexecuting program ) = 3 [pid 5775] write(3, "1000", 4) = 4 [pid 5775] close(3) = 0 [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) = 0x7fa365a00000 [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(0x7fa365a00000, 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 [ 239.658276][ T5775] loop0: detected capacity change from 0 to 32768 [ 239.822932][ T5775] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=errors=continue,metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names [ 239.841429][ T5775] bcachefs (loop0): initializing new filesystem [ 239.853833][ T5775] bcachefs (loop0): going read-write [ 239.863747][ T5775] bcachefs (loop0): marking superblocks [ 239.895844][ T5775] ===================================================== [ 239.903043][ T5775] BUG: KMSAN: uninit-value in rw_aux_tree_set+0x4d2/0x580 [ 239.912432][ T5775] rw_aux_tree_set+0x4d2/0x580 [ 239.917562][ T5775] rw_aux_tree_insert_entry+0x6c3/0x970 [ 239.923261][ T5775] bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 239.929375][ T5775] bch2_bset_insert+0x1621/0x19f0 [ 239.934621][ T5775] bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 239.940843][ T5775] bch2_btree_insert_key_leaf+0x276/0x1050 [ 239.946970][ T5775] __bch2_trans_commit+0xaf5e/0xd190 [ 239.952497][ T5775] bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 239.959089][ T5775] bch2_trans_mark_dev_sb+0x858/0x10e0 [ 239.964980][ T5775] bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 239.971209][ T5775] bch2_trans_mark_dev_sbs+0x32/0x40 [ 239.976900][ T5775] bch2_fs_initialize+0x19bd/0x35d0 [ 239.982318][ T5775] bch2_fs_start+0x77d/0xbd0 [ 239.987330][ T5775] bch2_fs_get_tree+0x13ea/0x22d0 [ 239.992578][ T5775] vfs_get_tree+0xb1/0x5a0 [ 239.997463][ T5775] do_new_mount+0x71f/0x15e0 [ 240.002287][ T5775] path_mount+0x742/0x1f10 [ 240.007061][ T5775] __se_sys_mount+0x722/0x810 [ 240.011936][ T5775] __x64_sys_mount+0xe4/0x150 [ 240.016968][ T5775] x64_sys_call+0x39bf/0x3c30 [ 240.021987][ T5775] do_syscall_64+0xcd/0x1e0 [ 240.026831][ T5775] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 240.033032][ T5775] [ 240.035701][ T5775] Uninit was created at: [ 240.040203][ T5775] ___kmalloc_large_node+0x22c/0x370 [ 240.045820][ T5775] __kmalloc_large_node_noprof+0x3f/0x1e0 [ 240.051832][ T5775] __kmalloc_node_noprof+0xc96/0x1250 [ 240.057608][ T5775] __kvmalloc_node_noprof+0xc0/0x2d0 [ 240.063108][ T5775] __bch2_btree_node_mem_alloc+0x2be/0xa80 [ 240.069270][ T5775] bch2_fs_btree_cache_init+0x4e4/0xb50 [ 240.075208][ T5775] bch2_fs_open+0x4d3a/0x5b40 [ 240.080060][ T5775] bch2_fs_get_tree+0x983/0x22d0 [ 240.085379][ T5775] vfs_get_tree+0xb1/0x5a0 [ 240.090055][ T5775] do_new_mount+0x71f/0x15e0 [ 240.095067][ T5775] path_mount+0x742/0x1f10 [ 240.099742][ T5775] __se_sys_mount+0x722/0x810 [ 240.104562][ T5775] __x64_sys_mount+0xe4/0x150 [ 240.109635][ T5775] x64_sys_call+0x39bf/0x3c30 [ 240.114523][ T5775] do_syscall_64+0xcd/0x1e0 [ 240.119453][ T5775] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 240.125697][ T5775] [ 240.128202][ T5775] CPU: 1 UID: 0 PID: 5775 Comm: syz-executor166 Not tainted 6.13.0-rc4-syzkaller-00110-g4099a71718b0 #0 [ 240.139786][ T5775] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 240.150173][ T5775] ===================================================== [ 240.157494][ T5775] Disabling lock debugging due to kernel taint [ 240.163798][ T5775] Kernel panic - not syncing: kmsan.panic set ... [ 240.170359][ T5775] CPU: 1 UID: 0 PID: 5775 Comm: syz-executor166 Tainted: G B 6.13.0-rc4-syzkaller-00110-g4099a71718b0 #0 [ 240.183135][ T5775] Tainted: [B]=BAD_PAGE [ 240.187385][ T5775] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 240.197574][ T5775] Call Trace: [ 240.200983][ T5775] [ 240.204037][ T5775] dump_stack_lvl+0x216/0x2d0 [ 240.208890][ T5775] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 240.214885][ T5775] dump_stack+0x1e/0x24 [ 240.219276][ T5775] panic+0x4e2/0xcf0 [ 240.223357][ T5775] ? kmsan_get_metadata+0x111/0x1c0 [ 240.228774][ T5775] kmsan_report+0x2c7/0x2d0 [ 240.233524][ T5775] ? _raw_spin_unlock_irqrestore+0x3f/0x60 [ 240.239534][ T5775] ? __msan_warning+0x95/0x120 [ 240.244481][ T5775] ? rw_aux_tree_set+0x4d2/0x580 [ 240.249578][ T5775] ? rw_aux_tree_insert_entry+0x6c3/0x970 [ 240.255461][ T5775] ? bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 240.261598][ T5775] ? bch2_bset_insert+0x1621/0x19f0 [ 240.266941][ T5775] ? bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 240.273103][ T5775] ? bch2_btree_insert_key_leaf+0x276/0x1050 [ 240.279269][ T5775] ? __bch2_trans_commit+0xaf5e/0xd190 [ 240.284894][ T5775] ? bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 240.291485][ T5775] ? bch2_trans_mark_dev_sb+0x858/0x10e0 [ 240.297279][ T5775] ? bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 240.303603][ T5775] ? bch2_trans_mark_dev_sbs+0x32/0x40 [ 240.309245][ T5775] ? bch2_fs_initialize+0x19bd/0x35d0 [ 240.314822][ T5775] ? bch2_fs_start+0x77d/0xbd0 [ 240.319851][ T5775] ? bch2_fs_get_tree+0x13ea/0x22d0 [ 240.325207][ T5775] ? vfs_get_tree+0xb1/0x5a0 [ 240.330000][ T5775] ? do_new_mount+0x71f/0x15e0 [ 240.334913][ T5775] ? path_mount+0x742/0x1f10 [ 240.339698][ T5775] ? __se_sys_mount+0x722/0x810 [ 240.344747][ T5775] ? __x64_sys_mount+0xe4/0x150 [ 240.349761][ T5775] ? x64_sys_call+0x39bf/0x3c30 [ 240.354808][ T5775] ? do_syscall_64+0xcd/0x1e0 [ 240.359621][ T5775] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 240.365899][ T5775] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 240.371880][ T5775] ? filter_irq_stacks+0x164/0x1a0 [ 240.377184][ T5775] ? stack_depot_save_flags+0x2c/0x750 [ 240.382808][ T5775] ? kmsan_get_metadata+0x13e/0x1c0 [ 240.388183][ T5775] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 240.394819][ T5775] ? kmsan_get_metadata+0x13e/0x1c0 [ 240.400201][ T5775] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 240.406227][ T5775] __msan_warning+0x95/0x120 [ 240.411032][ T5775] rw_aux_tree_set+0x4d2/0x580 [ 240.416040][ T5775] ? bset_aux_tree_verify+0x44d/0x4a0 [ 240.421578][ T5775] rw_aux_tree_insert_entry+0x6c3/0x970 [ 240.427310][ T5775] bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 240.433270][ T5775] ? bch2_bkey_pack_key+0x1745/0x1860 [ 240.438843][ T5775] bch2_bset_insert+0x1621/0x19f0 [ 240.444024][ T5775] ? kmsan_get_metadata+0x13e/0x1c0 [ 240.449510][ T5775] bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 240.455531][ T5775] ? __msan_memcpy+0x108/0x1c0 [ 240.460503][ T5775] bch2_btree_insert_key_leaf+0x276/0x1050 [ 240.466524][ T5775] __bch2_trans_commit+0xaf5e/0xd190 [ 240.472037][ T5775] bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 240.478478][ T5775] ? bch2_trans_start_alloc_update_noupdate+0x179/0x12f0 [ 240.485707][ T5775] ? kmsan_get_metadata+0x13e/0x1c0 [ 240.491077][ T5775] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 240.497106][ T5775] ? kmsan_get_metadata+0x13e/0x1c0 [ 240.502509][ T5775] ? kmsan_save_stack_with_flags+0x10/0x60 [ 240.508534][ T5775] bch2_trans_mark_dev_sb+0x858/0x10e0 [ 240.514259][ T5775] bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 240.520451][ T5775] bch2_trans_mark_dev_sbs+0x32/0x40 [ 240.528238][ T5775] bch2_fs_initialize+0x19bd/0x35d0 [ 240.533980][ T5775] ? kmsan_internal_poison_memory+0x49/0x90 [ 240.540127][ T5775] ? kmsan_slab_free+0xd0/0x140 [ 240.545246][ T5775] ? kfree+0x240/0xdb0 [ 240.549469][ T5775] ? bch2_printbuf_exit+0x9b/0xd0 [ 240.554677][ T5775] ? print_mount_opts+0x4ca/0x4f0 [ 240.560031][ T5775] ? bch2_fs_start+0x59/0xbd0 [ 240.564948][ T5775] ? bch2_fs_get_tree+0x13ea/0x22d0 [ 240.570406][ T5775] ? vfs_get_tree+0xb1/0x5a0 [ 240.575239][ T5775] ? do_new_mount+0x71f/0x15e0 [ 240.580207][ T5775] ? path_mount+0x742/0x1f10 [ 240.585000][ T5775] ? __se_sys_mount+0x722/0x810 [ 240.590096][ T5775] ? __x64_sys_mount+0xe4/0x150 [ 240.595143][ T5775] ? x64_sys_call+0x39bf/0x3c30 [ 240.600406][ T5775] ? do_syscall_64+0xcd/0x1e0 [ 240.605296][ T5775] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 240.611602][ T5775] ? kmsan_get_metadata+0x13e/0x1c0 [ 240.617030][ T5775] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 240.623024][ T5775] ? kfree+0x1a7/0xdb0 [ 240.627338][ T5775] ? filter_irq_stacks+0x60/0x1a0 [ 240.632547][ T5775] ? kmsan_get_metadata+0x13e/0x1c0 [ 240.637924][ T5775] ? kmsan_get_metadata+0x13e/0x1c0 [ 240.643266][ T5775] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 240.649249][ T5775] ? kmsan_get_metadata+0x13e/0x1c0 [ 240.654611][ T5775] ? kmsan_get_metadata+0x13e/0x1c0 [ 240.660007][ T5775] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 240.666030][ T5775] ? kmsan_get_metadata+0x13e/0x1c0 [ 240.671402][ T5775] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 240.677971][ T5775] ? llist_reverse_order+0x102/0x130 [ 240.683411][ T5775] ? kmsan_internal_unpoison_memory+0x14/0x20 [ 240.689711][ T5775] ? __closure_wake_up+0x16a/0x180 [ 240.695085][ T5775] bch2_fs_start+0x77d/0xbd0 [ 240.699903][ T5775] bch2_fs_get_tree+0x13ea/0x22d0 [ 240.705194][ T5775] vfs_get_tree+0xb1/0x5a0 [ 240.709882][ T5775] ? mount_capable+0x97/0x120 [ 240.714775][ T5775] do_new_mount+0x71f/0x15e0 [ 240.719589][ T5775] ? kmsan_get_metadata+0x13e/0x1c0 [ 240.724981][ T5775] path_mount+0x742/0x1f10 [ 240.729615][ T5775] ? user_path_at+0x374/0x3e0 [ 240.734547][ T5775] __se_sys_mount+0x722/0x810 [ 240.739410][ T5775] ? ptrace_notify+0x263/0x320 [ 240.744370][ T5775] __x64_sys_mount+0xe4/0x150 [ 240.749213][ T5775] x64_sys_call+0x39bf/0x3c30 [ 240.754078][ T5775] do_syscall_64+0xcd/0x1e0 [ 240.758727][ T5775] ? clear_bhb_loop+0x25/0x80 [ 240.763609][ T5775] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 240.769804][ T5775] RIP: 0033:0x7fa36deaddea [ 240.774343][ 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 [ 240.796823][ T5775] RSP: 002b:00007ffc213e4e68 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 240.805427][ T5775] RAX: ffffffffffffffda RBX: 00007ffc213e4e80 RCX: 00007fa36deaddea [ 240.813552][ T5775] RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 00007ffc213e4e80 [ 240.821679][ T5775] RBP: 0000000000000010 R08: 00007ffc213e4ec0 R09: 00000000000059e7 [ 240.829795][ T5775] R10: 0000000000000010 R11: 0000000000000282 R12: 0000000000000004 [ 240.837923][ T5775] R13: 00007ffc213e4ec0 R14: 0000000000000003 R15: 0000000001000000 [ 240.846092][ T5775] [ 240.849522][ T5775] Kernel Offset: disabled [ 240.853957][ T5775] Rebooting in 86400 seconds..