./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2178448823 <...> Warning: Permanently added '10.128.1.118' (ED25519) to the list of known hosts. execve("./syz-executor2178448823", ["./syz-executor2178448823"], 0x7fff3ead4b00 /* 10 vars */) = 0 brk(NULL) = 0x55557a08a000 brk(0x55557a08ad00) = 0x55557a08ad00 arch_prctl(ARCH_SET_FS, 0x55557a08a380) = 0 set_tid_address(0x55557a08a650) = 5784 set_robust_list(0x55557a08a660, 24) = 0 rseq(0x55557a08aca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2178448823", 4096) = 28 getrandom("\x27\xb2\xfa\x78\xbd\xe0\xf6\x60", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557a08ad00 brk(0x55557a0abd00) = 0x55557a0abd00 brk(0x55557a0ac000) = 0x55557a0ac000 mprotect(0x7f227da56000, 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=0x55557a08a650) = 5785 ./strace-static-x86_64: Process 5785 attached [pid 5785] set_robust_list(0x55557a08a660, 24) = 0 [pid 5785] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5785] setpgid(0, 0) = 0 [pid 5785] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5785] write(3, "1000", 4) = 4 executing program [pid 5785] close(3) = 0 [pid 5785] write(1, "executing program\n", 18) = 18 [pid 5785] memfd_create("syzkaller", 0) = 3 [pid 5785] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2275400000 [pid 5785] 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 5785] munmap(0x7f2275400000, 138412032) = 0 [pid 5785] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5785] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5785] close(3) = 0 [pid 5785] close(4) = 0 [pid 5785] mkdir("./file1", 0777) = 0 [ 179.366864][ T5785] loop0: detected capacity change from 0 to 32768 [ 179.492246][ T5785] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=errors=continue,metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names [ 179.509098][ T5785] bcachefs (loop0): initializing new filesystem [ 179.520532][ T5785] bcachefs (loop0): going read-write [ 179.529514][ T5785] bcachefs (loop0): marking superblocks [ 179.553388][ T5785] ===================================================== [ 179.560684][ T5785] BUG: KMSAN: uninit-value in rw_aux_tree_set+0x4d2/0x580 [ 179.567942][ T5785] rw_aux_tree_set+0x4d2/0x580 [ 179.573162][ T5785] rw_aux_tree_insert_entry+0x6c3/0x970 [ 179.578905][ T5785] bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 179.584941][ T5785] bch2_bset_insert+0x1621/0x19f0 [ 179.590206][ T5785] bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 179.596200][ T5785] bch2_btree_insert_key_leaf+0x276/0x1050 [ 179.602285][ T5785] __bch2_trans_commit+0xaf5e/0xd190 [ 179.607748][ T5785] bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 179.614266][ T5785] bch2_trans_mark_dev_sb+0x858/0x10e0 [ 179.619899][ T5785] bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 179.626105][ T5785] bch2_trans_mark_dev_sbs+0x32/0x40 [ 179.631665][ T5785] bch2_fs_initialize+0x19bd/0x35d0 [ 179.637055][ T5785] bch2_fs_start+0x77d/0xbd0 [ 179.641868][ T5785] bch2_fs_get_tree+0x13ea/0x22d0 [ 179.647049][ T5785] vfs_get_tree+0xb1/0x5a0 [ 179.651715][ T5785] do_new_mount+0x71f/0x15e0 [ 179.656454][ T5785] path_mount+0x742/0x1f10 [ 179.661104][ T5785] __se_sys_mount+0x722/0x810 [ 179.665919][ T5785] __x64_sys_mount+0xe4/0x150 [ 179.670867][ T5785] x64_sys_call+0x39bf/0x3c30 [ 179.675747][ T5785] do_syscall_64+0xcd/0x1e0 [ 179.680465][ T5785] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 179.686550][ T5785] [ 179.689017][ T5785] Uninit was created at: [ 179.693604][ T5785] ___kmalloc_large_node+0x22c/0x370 [ 179.699082][ T5785] __kmalloc_large_node_noprof+0x3f/0x1e0 [ 179.705035][ T5785] __kmalloc_node_noprof+0xc96/0x1250 [ 179.710680][ T5785] __kvmalloc_node_noprof+0xc0/0x2d0 [ 179.716085][ T5785] __bch2_btree_node_mem_alloc+0x2be/0xa80 [ 179.722113][ T5785] bch2_fs_btree_cache_init+0x4e4/0xb50 [ 179.727833][ T5785] bch2_fs_open+0x4d3a/0x5b40 [ 179.732763][ T5785] bch2_fs_get_tree+0x983/0x22d0 [ 179.737865][ T5785] vfs_get_tree+0xb1/0x5a0 [ 179.742502][ T5785] do_new_mount+0x71f/0x15e0 [ 179.747258][ T5785] path_mount+0x742/0x1f10 [ 179.751969][ T5785] __se_sys_mount+0x722/0x810 [ 179.756793][ T5785] __x64_sys_mount+0xe4/0x150 [ 179.761687][ T5785] x64_sys_call+0x39bf/0x3c30 [ 179.766560][ T5785] do_syscall_64+0xcd/0x1e0 [ 179.771259][ T5785] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 179.777351][ T5785] [ 179.779748][ T5785] CPU: 0 UID: 0 PID: 5785 Comm: syz-executor217 Not tainted 6.13.0-rc2-syzkaller-00130-g150b567e0d57 #0 [ 179.791144][ T5785] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 [ 179.801393][ T5785] ===================================================== [ 179.808394][ T5785] Disabling lock debugging due to kernel taint [ 179.814747][ T5785] Kernel panic - not syncing: kmsan.panic set ... [ 179.821290][ T5785] CPU: 0 UID: 0 PID: 5785 Comm: syz-executor217 Tainted: G B 6.13.0-rc2-syzkaller-00130-g150b567e0d57 #0 [ 179.834021][ T5785] Tainted: [B]=BAD_PAGE [ 179.838226][ T5785] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 [ 179.848373][ T5785] Call Trace: [ 179.851756][ T5785] [ 179.854774][ T5785] dump_stack_lvl+0x216/0x2d0 [ 179.859577][ T5785] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 179.865493][ T5785] dump_stack+0x1e/0x24 [ 179.869761][ T5785] panic+0x4e2/0xcf0 [ 179.873797][ T5785] ? kmsan_get_metadata+0x71/0x1c0 [ 179.879079][ T5785] kmsan_report+0x2c7/0x2d0 [ 179.883703][ T5785] ? _raw_spin_unlock_irqrestore+0x3f/0x60 [ 179.889649][ T5785] ? __msan_warning+0x95/0x120 [ 179.894548][ T5785] ? rw_aux_tree_set+0x4d2/0x580 [ 179.899591][ T5785] ? rw_aux_tree_insert_entry+0x6c3/0x970 [ 179.905422][ T5785] ? bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 179.911535][ T5785] ? bch2_bset_insert+0x1621/0x19f0 [ 179.916829][ T5785] ? bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 179.922924][ T5785] ? bch2_btree_insert_key_leaf+0x276/0x1050 [ 179.929018][ T5785] ? __bch2_trans_commit+0xaf5e/0xd190 [ 179.934585][ T5785] ? bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 179.941119][ T5785] ? bch2_trans_mark_dev_sb+0x858/0x10e0 [ 179.946871][ T5785] ? bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 179.953175][ T5785] ? bch2_trans_mark_dev_sbs+0x32/0x40 [ 179.958815][ T5785] ? bch2_fs_initialize+0x19bd/0x35d0 [ 179.964295][ T5785] ? bch2_fs_start+0x77d/0xbd0 [ 179.969241][ T5785] ? bch2_fs_get_tree+0x13ea/0x22d0 [ 179.974563][ T5785] ? vfs_get_tree+0xb1/0x5a0 [ 179.979278][ T5785] ? do_new_mount+0x71f/0x15e0 [ 179.984136][ T5785] ? path_mount+0x742/0x1f10 [ 179.988852][ T5785] ? __se_sys_mount+0x722/0x810 [ 179.993795][ T5785] ? __x64_sys_mount+0xe4/0x150 [ 179.998756][ T5785] ? x64_sys_call+0x39bf/0x3c30 [ 180.003801][ T5785] ? do_syscall_64+0xcd/0x1e0 [ 180.008563][ T5785] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 180.014755][ T5785] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 180.020672][ T5785] ? filter_irq_stacks+0x164/0x1a0 [ 180.025903][ T5785] ? stack_depot_save_flags+0x2c/0x750 [ 180.031473][ T5785] ? kmsan_get_metadata+0x13e/0x1c0 [ 180.036771][ T5785] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 180.043231][ T5785] ? kmsan_get_metadata+0x13e/0x1c0 [ 180.048531][ T5785] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 180.054452][ T5785] __msan_warning+0x95/0x120 [ 180.059168][ T5785] rw_aux_tree_set+0x4d2/0x580 [ 180.064037][ T5785] ? bset_aux_tree_verify+0x44d/0x4a0 [ 180.069516][ T5785] rw_aux_tree_insert_entry+0x6c3/0x970 [ 180.075196][ T5785] bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 180.081122][ T5785] ? bch2_bkey_pack_key+0x1745/0x1860 [ 180.086630][ T5785] bch2_bset_insert+0x1621/0x19f0 [ 180.091767][ T5785] ? kmsan_get_metadata+0x13e/0x1c0 [ 180.097085][ T5785] bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 180.103016][ T5785] ? __msan_memcpy+0x108/0x1c0 [ 180.107930][ T5785] bch2_btree_insert_key_leaf+0x276/0x1050 [ 180.113879][ T5785] __bch2_trans_commit+0xaf5e/0xd190 [ 180.119308][ T5785] bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 180.125695][ T5785] ? bch2_trans_start_alloc_update_noupdate+0x179/0x12f0 [ 180.132854][ T5785] ? kmsan_get_metadata+0x13e/0x1c0 [ 180.138158][ T5785] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 180.144075][ T5785] ? kmsan_get_metadata+0x13e/0x1c0 [ 180.149417][ T5785] ? __pfx_kmsan_internal_set_shadow_origin+0x10/0x10 [ 180.156340][ T5785] bch2_trans_mark_dev_sb+0x858/0x10e0 [ 180.161992][ T5785] bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 180.168104][ T5785] bch2_trans_mark_dev_sbs+0x32/0x40 [ 180.173506][ T5785] bch2_fs_initialize+0x19bd/0x35d0 [ 180.178807][ T5785] ? kmsan_internal_poison_memory+0x49/0x90 [ 180.184832][ T5785] ? kmsan_slab_free+0xd0/0x140 [ 180.189807][ T5785] ? kfree+0x240/0xdb0 [ 180.194000][ T5785] ? bch2_printbuf_exit+0x9b/0xd0 [ 180.199156][ T5785] ? print_mount_opts+0x4ca/0x4f0 [ 180.204334][ T5785] ? bch2_fs_start+0x59/0xbd0 [ 180.209229][ T5785] ? bch2_fs_get_tree+0x13ea/0x22d0 [ 180.214529][ T5785] ? vfs_get_tree+0xb1/0x5a0 [ 180.219242][ T5785] ? do_new_mount+0x71f/0x15e0 [ 180.224096][ T5785] ? path_mount+0x742/0x1f10 [ 180.228811][ T5785] ? __se_sys_mount+0x722/0x810 [ 180.233759][ T5785] ? __x64_sys_mount+0xe4/0x150 [ 180.238725][ T5785] ? x64_sys_call+0x39bf/0x3c30 [ 180.243750][ T5785] ? do_syscall_64+0xcd/0x1e0 [ 180.248512][ T5785] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 180.254711][ T5785] ? kmsan_get_metadata+0x13e/0x1c0 [ 180.260005][ T5785] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 180.265921][ T5785] ? kfree+0x1a7/0xdb0 [ 180.270094][ T5785] ? filter_irq_stacks+0x60/0x1a0 [ 180.275298][ T5785] ? kmsan_get_metadata+0x13e/0x1c0 [ 180.280596][ T5785] ? kmsan_get_metadata+0x13e/0x1c0 [ 180.285894][ T5785] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 180.291805][ T5785] ? kmsan_get_metadata+0x13e/0x1c0 [ 180.297100][ T5785] ? kmsan_get_metadata+0x13e/0x1c0 [ 180.302399][ T5785] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 180.308311][ T5785] ? kmsan_get_metadata+0x13e/0x1c0 [ 180.313650][ T5785] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 180.320144][ T5785] ? llist_reverse_order+0x102/0x130 [ 180.325589][ T5785] ? kmsan_internal_unpoison_memory+0x14/0x20 [ 180.331820][ T5785] ? __closure_wake_up+0x16a/0x180 [ 180.337047][ T5785] bch2_fs_start+0x77d/0xbd0 [ 180.341771][ T5785] bch2_fs_get_tree+0x13ea/0x22d0 [ 180.346945][ T5785] vfs_get_tree+0xb1/0x5a0 [ 180.351517][ T5785] ? mount_capable+0x97/0x120 [ 180.356377][ T5785] do_new_mount+0x71f/0x15e0 [ 180.361058][ T5785] ? kmsan_get_metadata+0x13e/0x1c0 [ 180.366378][ T5785] path_mount+0x742/0x1f10 [ 180.370925][ T5785] ? user_path_at+0x374/0x3e0 [ 180.375762][ T5785] __se_sys_mount+0x722/0x810 [ 180.380550][ T5785] ? ptrace_notify+0x263/0x320 [ 180.385495][ T5785] __x64_sys_mount+0xe4/0x150 [ 180.390386][ T5785] x64_sys_call+0x39bf/0x3c30 [ 180.395455][ T5785] do_syscall_64+0xcd/0x1e0 [ 180.400066][ T5785] ? clear_bhb_loop+0x25/0x80 [ 180.404922][ T5785] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 180.410945][ T5785] RIP: 0033:0x7f227d9dedea [ 180.415440][ T5785] 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 [ 180.435158][ T5785] RSP: 002b:00007ffe9493f718 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 180.443685][ T5785] RAX: ffffffffffffffda RBX: 00007ffe9493f730 RCX: 00007f227d9dedea [ 180.451741][ T5785] RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 00007ffe9493f730 [ 180.459795][ T5785] RBP: 0000000000000010 R08: 00007ffe9493f770 R09: 00000000000059c7 [ 180.467848][ T5785] R10: 0000000000000010 R11: 0000000000000282 R12: 0000000000000004 [ 180.475894][ T5785] R13: 00007ffe9493f770 R14: 0000000000000003 R15: 0000000001000000 [ 180.483961][ T5785] [ 180.487371][ T5785] Kernel Offset: disabled [ 180.491785][ T5785] Rebooting in 86400 seconds..