./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4042357401 <...> Warning: Permanently added '10.128.0.44' (ED25519) to the list of known hosts. execve("./syz-executor4042357401", ["./syz-executor4042357401"], 0x7fff4b299540 /* 10 vars */) = 0 brk(NULL) = 0x555566abe000 brk(0x555566abed00) = 0x555566abed00 arch_prctl(ARCH_SET_FS, 0x555566abe380) = 0 set_tid_address(0x555566abe650) = 5771 set_robust_list(0x555566abe660, 24) = 0 rseq(0x555566abeca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor4042357401", 4096) = 28 getrandom("\x35\xa2\x43\x90\x81\x6f\x75\x88", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555566abed00 brk(0x555566adfd00) = 0x555566adfd00 brk(0x555566ae0000) = 0x555566ae0000 mprotect(0x7f0728c34000, 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=0x555566abe650) = 5772 ./strace-static-x86_64: Process 5772 attached [pid 5772] set_robust_list(0x555566abe660, 24) = 0 [pid 5772] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5772] setpgid(0, 0) = 0 [pid 5772] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5772] write(3, "1000", 4) = 4 executing program [pid 5772] close(3) = 0 [pid 5772] write(1, "executing program\n", 18) = 18 [pid 5772] memfd_create("syzkaller", 0) = 3 [pid 5772] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0720600000 [pid 5772] 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 5772] munmap(0x7f0720600000, 138412032) = 0 [pid 5772] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5772] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5772] close(3) = 0 [pid 5772] close(4) = 0 [pid 5772] mkdir("./file1", 0777) = 0 [ 240.020186][ T5772] loop0: detected capacity change from 0 to 32768 [ 240.188178][ T5772] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=errors=continue,metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names [ 240.205054][ T5772] bcachefs (loop0): initializing new filesystem [ 240.217156][ T5772] bcachefs (loop0): going read-write [ 240.227268][ T5772] bcachefs (loop0): marking superblocks [ 240.260503][ T5772] ===================================================== [ 240.267828][ T5772] BUG: KMSAN: uninit-value in rw_aux_tree_set+0x4d2/0x580 [ 240.275378][ T5772] rw_aux_tree_set+0x4d2/0x580 [ 240.280360][ T5772] rw_aux_tree_insert_entry+0x6c3/0x970 [ 240.286217][ T5772] bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 240.292337][ T5772] bch2_bset_insert+0x1621/0x19f0 [ 240.297552][ T5772] bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 240.303654][ T5772] bch2_btree_insert_key_leaf+0x276/0x1050 [ 240.309714][ T5772] __bch2_trans_commit+0xaf5e/0xd190 [ 240.315293][ T5772] bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 240.321787][ T5772] bch2_trans_mark_dev_sb+0x858/0x10e0 [ 240.327641][ T5772] bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 240.333963][ T5772] bch2_trans_mark_dev_sbs+0x32/0x40 [ 240.339472][ T5772] bch2_fs_initialize+0x19bd/0x35d0 [ 240.344960][ T5772] bch2_fs_start+0x77d/0xbd0 [ 240.349795][ T5772] bch2_fs_get_tree+0x13ea/0x22d0 [ 240.355099][ T5772] vfs_get_tree+0xb1/0x5a0 [ 240.359755][ T5772] do_new_mount+0x71f/0x15e0 [ 240.364588][ T5772] path_mount+0x742/0x1f10 [ 240.369246][ T5772] __se_sys_mount+0x722/0x810 [ 240.374164][ T5772] __x64_sys_mount+0xe4/0x150 [ 240.379051][ T5772] x64_sys_call+0x39bf/0x3c30 [ 240.384092][ T5772] do_syscall_64+0xcd/0x1e0 [ 240.388821][ T5772] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 240.395120][ T5772] [ 240.397566][ T5772] Uninit was created at: [ 240.402266][ T5772] ___kmalloc_large_node+0x22c/0x370 [ 240.407779][ T5772] __kmalloc_large_node_noprof+0x3f/0x1e0 [ 240.413848][ T5772] __kmalloc_node_noprof+0xc96/0x1250 [ 240.419495][ T5772] __kvmalloc_node_noprof+0xc0/0x2d0 [ 240.425039][ T5772] __bch2_btree_node_mem_alloc+0x2be/0xa80 [ 240.431062][ T5772] bch2_fs_btree_cache_init+0x4e4/0xb50 [ 240.436899][ T5772] bch2_fs_open+0x4d3a/0x5b40 [ 240.441798][ T5772] bch2_fs_get_tree+0x983/0x22d0 [ 240.447042][ T5772] vfs_get_tree+0xb1/0x5a0 [ 240.451645][ T5772] do_new_mount+0x71f/0x15e0 [ 240.456616][ T5772] path_mount+0x742/0x1f10 [ 240.461272][ T5772] __se_sys_mount+0x722/0x810 [ 240.466195][ T5772] __x64_sys_mount+0xe4/0x150 [ 240.471074][ T5772] x64_sys_call+0x39bf/0x3c30 [ 240.476045][ T5772] do_syscall_64+0xcd/0x1e0 [ 240.480729][ T5772] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 240.486989][ T5772] [ 240.489454][ T5772] CPU: 0 UID: 0 PID: 5772 Comm: syz-executor404 Not tainted 6.13.0-rc3-syzkaller-00209-g499551201b5f #0 [ 240.500860][ T5772] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 240.511239][ T5772] ===================================================== [ 240.518533][ T5772] Disabling lock debugging due to kernel taint [ 240.524901][ T5772] Kernel panic - not syncing: kmsan.panic set ... [ 240.531446][ T5772] CPU: 0 UID: 0 PID: 5772 Comm: syz-executor404 Tainted: G B 6.13.0-rc3-syzkaller-00209-g499551201b5f #0 [ 240.544228][ T5772] Tainted: [B]=BAD_PAGE [ 240.548472][ T5772] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 240.558659][ T5772] Call Trace: [ 240.562053][ T5772] [ 240.565088][ T5772] dump_stack_lvl+0x216/0x2d0 [ 240.569939][ T5772] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 240.575899][ T5772] dump_stack+0x1e/0x24 [ 240.580244][ T5772] panic+0x4e2/0xcf0 [ 240.584358][ T5772] ? kmsan_get_metadata+0xb1/0x1c0 [ 240.589618][ T5772] kmsan_report+0x2c7/0x2d0 [ 240.594248][ T5772] ? _raw_spin_unlock_irqrestore+0x3f/0x60 [ 240.600246][ T5772] ? __msan_warning+0x95/0x120 [ 240.605179][ T5772] ? rw_aux_tree_set+0x4d2/0x580 [ 240.610256][ T5772] ? rw_aux_tree_insert_entry+0x6c3/0x970 [ 240.616160][ T5772] ? bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 240.622304][ T5772] ? bch2_bset_insert+0x1621/0x19f0 [ 240.627675][ T5772] ? bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 240.633998][ T5772] ? bch2_btree_insert_key_leaf+0x276/0x1050 [ 240.640164][ T5772] ? __bch2_trans_commit+0xaf5e/0xd190 [ 240.645786][ T5772] ? bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 240.652398][ T5772] ? bch2_trans_mark_dev_sb+0x858/0x10e0 [ 240.658270][ T5772] ? bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 240.664678][ T5772] ? bch2_trans_mark_dev_sbs+0x32/0x40 [ 240.670292][ T5772] ? bch2_fs_initialize+0x19bd/0x35d0 [ 240.675822][ T5772] ? bch2_fs_start+0x77d/0xbd0 [ 240.680760][ T5772] ? bch2_fs_get_tree+0x13ea/0x22d0 [ 240.686158][ T5772] ? vfs_get_tree+0xb1/0x5a0 [ 240.690946][ T5772] ? do_new_mount+0x71f/0x15e0 [ 240.695830][ T5772] ? path_mount+0x742/0x1f10 [ 240.700605][ T5772] ? __se_sys_mount+0x722/0x810 [ 240.705596][ T5772] ? __x64_sys_mount+0xe4/0x150 [ 240.710587][ T5772] ? x64_sys_call+0x39bf/0x3c30 [ 240.715608][ T5772] ? do_syscall_64+0xcd/0x1e0 [ 240.720443][ T5772] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 240.726774][ T5772] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 240.732771][ T5772] ? filter_irq_stacks+0x164/0x1a0 [ 240.738125][ T5772] ? stack_depot_save_flags+0x2c/0x750 [ 240.743785][ T5772] ? kmsan_get_metadata+0x13e/0x1c0 [ 240.749214][ T5772] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 240.755778][ T5772] ? kmsan_get_metadata+0x13e/0x1c0 [ 240.761195][ T5772] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 240.767183][ T5772] __msan_warning+0x95/0x120 [ 240.772062][ T5772] rw_aux_tree_set+0x4d2/0x580 [ 240.777029][ T5772] ? bset_aux_tree_verify+0x44d/0x4a0 [ 240.782570][ T5772] rw_aux_tree_insert_entry+0x6c3/0x970 [ 240.788290][ T5772] bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 240.794250][ T5772] ? bch2_bkey_pack_key+0x1745/0x1860 [ 240.799814][ T5772] bch2_bset_insert+0x1621/0x19f0 [ 240.804991][ T5772] ? kmsan_get_metadata+0x13e/0x1c0 [ 240.810352][ T5772] bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 240.816433][ T5772] ? __msan_memcpy+0x108/0x1c0 [ 240.821407][ T5772] bch2_btree_insert_key_leaf+0x276/0x1050 [ 240.827426][ T5772] __bch2_trans_commit+0xaf5e/0xd190 [ 240.832927][ T5772] bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 240.839365][ T5772] ? bch2_trans_start_alloc_update_noupdate+0x179/0x12f0 [ 240.846592][ T5772] ? kmsan_get_metadata+0x13e/0x1c0 [ 240.852009][ T5772] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 240.858070][ T5772] ? kmsan_get_metadata+0x13e/0x1c0 [ 240.863429][ T5772] ? kmsan_internal_set_shadow_origin+0x40/0x100 [ 240.869956][ T5772] bch2_trans_mark_dev_sb+0x858/0x10e0 [ 240.875665][ T5772] bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 240.881838][ T5772] bch2_trans_mark_dev_sbs+0x32/0x40 [ 240.887335][ T5772] bch2_fs_initialize+0x19bd/0x35d0 [ 240.892710][ T5772] ? kmsan_internal_poison_memory+0x49/0x90 [ 240.898833][ T5772] ? kmsan_slab_free+0xd0/0x140 [ 240.903861][ T5772] ? kfree+0x240/0xdb0 [ 240.908137][ T5772] ? bch2_printbuf_exit+0x9b/0xd0 [ 240.913341][ T5772] ? print_mount_opts+0x4ca/0x4f0 [ 240.918565][ T5772] ? bch2_fs_start+0x59/0xbd0 [ 240.923482][ T5772] ? bch2_fs_get_tree+0x13ea/0x22d0 [ 240.928833][ T5772] ? vfs_get_tree+0xb1/0x5a0 [ 240.933591][ T5772] ? do_new_mount+0x71f/0x15e0 [ 240.938487][ T5772] ? path_mount+0x742/0x1f10 [ 240.943274][ T5772] ? __se_sys_mount+0x722/0x810 [ 240.948257][ T5772] ? __x64_sys_mount+0xe4/0x150 [ 240.953257][ T5772] ? x64_sys_call+0x39bf/0x3c30 [ 240.958620][ T5772] ? do_syscall_64+0xcd/0x1e0 [ 240.963428][ T5772] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 240.969675][ T5772] ? kmsan_get_metadata+0x13e/0x1c0 [ 240.975022][ T5772] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 240.980976][ T5772] ? kfree+0x1a7/0xdb0 [ 240.985202][ T5772] ? filter_irq_stacks+0x60/0x1a0 [ 240.990391][ T5772] ? kmsan_get_metadata+0x13e/0x1c0 [ 240.995739][ T5772] ? kmsan_get_metadata+0x13e/0x1c0 [ 241.001117][ T5772] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 241.007193][ T5772] ? kmsan_get_metadata+0x13e/0x1c0 [ 241.012564][ T5772] ? kmsan_get_metadata+0x13e/0x1c0 [ 241.017967][ T5772] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 241.023962][ T5772] ? kmsan_get_metadata+0x13e/0x1c0 [ 241.029373][ T5772] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 241.035940][ T5772] ? llist_reverse_order+0x102/0x130 [ 241.041445][ T5772] ? kmsan_internal_unpoison_memory+0x14/0x20 [ 241.047735][ T5772] ? __closure_wake_up+0x16a/0x180 [ 241.053092][ T5772] bch2_fs_start+0x77d/0xbd0 [ 241.057889][ T5772] bch2_fs_get_tree+0x13ea/0x22d0 [ 241.063119][ T5772] vfs_get_tree+0xb1/0x5a0 [ 241.067719][ T5772] ? mount_capable+0x97/0x120 [ 241.072567][ T5772] do_new_mount+0x71f/0x15e0 [ 241.077296][ T5772] ? kmsan_get_metadata+0x13e/0x1c0 [ 241.082692][ T5772] path_mount+0x742/0x1f10 [ 241.087371][ T5772] ? user_path_at+0x374/0x3e0 [ 241.092241][ T5772] __se_sys_mount+0x722/0x810 [ 241.097103][ T5772] ? ptrace_notify+0x263/0x320 [ 241.102074][ T5772] __x64_sys_mount+0xe4/0x150 [ 241.106950][ T5772] x64_sys_call+0x39bf/0x3c30 [ 241.111839][ T5772] do_syscall_64+0xcd/0x1e0 [ 241.116550][ T5772] ? clear_bhb_loop+0x25/0x80 [ 241.121400][ T5772] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 241.127497][ T5772] RIP: 0033:0x7f0728bbcdea [ 241.132060][ T5772] 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 [ 241.151938][ T5772] RSP: 002b:00007ffdeff91328 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 241.160596][ T5772] RAX: ffffffffffffffda RBX: 00007ffdeff91340 RCX: 00007f0728bbcdea [ 241.168703][ T5772] RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 00007ffdeff91340 [ 241.176831][ T5772] RBP: 0000000000000010 R08: 00007ffdeff91380 R09: 00000000000059d0 [ 241.184979][ T5772] R10: 0000000000000010 R11: 0000000000000282 R12: 0000000000000004 [ 241.193070][ T5772] R13: 00007ffdeff91380 R14: 0000000000000003 R15: 0000000001000000 [ 241.201180][ T5772] [ 241.204643][ T5772] Kernel Offset: disabled [ 241.209057][ T5772] Rebooting in 86400 seconds..