./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1541959093 <...> Warning: Permanently added '10.128.0.136' (ED25519) to the list of known hosts. execve("./syz-executor1541959093", ["./syz-executor1541959093"], 0x7ffe6b3f82b0 /* 10 vars */) = 0 brk(NULL) = 0x55556f694000 brk(0x55556f694d00) = 0x55556f694d00 arch_prctl(ARCH_SET_FS, 0x55556f694380) = 0 set_tid_address(0x55556f694650) = 5776 set_robust_list(0x55556f694660, 24) = 0 rseq(0x55556f694ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1541959093", 4096) = 28 getrandom("\xdb\xe0\x4e\x02\xf9\xae\x53\xfe", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556f694d00 brk(0x55556f6b5d00) = 0x55556f6b5d00 brk(0x55556f6b6000) = 0x55556f6b6000 mprotect(0x7efea581e000, 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=0x55556f694650) = 5777 ./strace-static-x86_64: Process 5777 attached [pid 5777] set_robust_list(0x55556f694660, 24) = 0 [pid 5777] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5777] setpgid(0, 0) = 0 [pid 5777] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5777] write(3, "1000", 4) = 4 [pid 5777] close(3executing program ) = 0 [pid 5777] write(1, "executing program\n", 18) = 18 [pid 5777] memfd_create("syzkaller", 0) = 3 [pid 5777] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efe9d200000 [pid 5777] 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 5777] munmap(0x7efe9d200000, 138412032) = 0 [pid 5777] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5777] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5777] close(3) = 0 [pid 5777] close(4) = 0 [pid 5777] mkdir("./file1", 0777) = 0 [ 182.510580][ T5777] loop0: detected capacity change from 0 to 32768 [ 182.621633][ T5777] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=errors=continue,metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names [ 182.638776][ T5777] bcachefs (loop0): initializing new filesystem [ 182.657565][ T5777] bcachefs (loop0): going read-write [ 182.668668][ T5777] bcachefs (loop0): marking superblocks [ 182.694924][ T5777] ===================================================== [ 182.702334][ T5777] BUG: KMSAN: uninit-value in rw_aux_tree_set+0x4d2/0x580 [ 182.709818][ T5777] rw_aux_tree_set+0x4d2/0x580 [ 182.714761][ T5777] rw_aux_tree_insert_entry+0x6c3/0x970 [ 182.720670][ T5777] bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 182.726816][ T5777] bch2_bset_insert+0x1621/0x19f0 [ 182.732054][ T5777] bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 182.738186][ T5777] bch2_btree_insert_key_leaf+0x276/0x1050 [ 182.744190][ T5777] __bch2_trans_commit+0xaf5e/0xd190 [ 182.749707][ T5777] bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 182.756257][ T5777] bch2_trans_mark_dev_sb+0x858/0x10e0 [ 182.761896][ T5777] bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 182.768116][ T5777] bch2_trans_mark_dev_sbs+0x32/0x40 [ 182.773621][ T5777] bch2_fs_initialize+0x19bd/0x35d0 [ 182.779151][ T5777] bch2_fs_start+0x77d/0xbd0 [ 182.783969][ T5777] bch2_fs_get_tree+0x13ea/0x22d0 [ 182.789240][ T5777] vfs_get_tree+0xb1/0x5a0 [ 182.793847][ T5777] do_new_mount+0x71f/0x15e0 [ 182.798685][ T5777] path_mount+0x742/0x1f10 [ 182.803293][ T5777] __se_sys_mount+0x722/0x810 [ 182.808189][ T5777] __x64_sys_mount+0xe4/0x150 [ 182.813029][ T5777] x64_sys_call+0x39bf/0x3c30 [ 182.817962][ T5777] do_syscall_64+0xcd/0x1e0 [ 182.822656][ T5777] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 182.828855][ T5777] [ 182.831291][ T5777] Uninit was created at: [ 182.835694][ T5777] ___kmalloc_large_node+0x22c/0x370 [ 182.841366][ T5777] __kmalloc_large_node_noprof+0x3f/0x1e0 [ 182.847344][ T5777] __kmalloc_node_noprof+0xc96/0x1250 [ 182.852843][ T5777] __kvmalloc_node_noprof+0xc0/0x2d0 [ 182.858342][ T5777] __bch2_btree_node_mem_alloc+0x2be/0xa80 [ 182.864336][ T5777] bch2_fs_btree_cache_init+0x4e4/0xb50 [ 182.870143][ T5777] bch2_fs_open+0x4d3a/0x5b40 [ 182.874993][ T5777] bch2_fs_get_tree+0x983/0x22d0 [ 182.880278][ T5777] vfs_get_tree+0xb1/0x5a0 [ 182.884887][ T5777] do_new_mount+0x71f/0x15e0 [ 182.889707][ T5777] path_mount+0x742/0x1f10 [ 182.894333][ T5777] __se_sys_mount+0x722/0x810 [ 182.899302][ T5777] __x64_sys_mount+0xe4/0x150 [ 182.904150][ T5777] x64_sys_call+0x39bf/0x3c30 [ 182.909100][ T5777] do_syscall_64+0xcd/0x1e0 [ 182.913756][ T5777] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 182.919942][ T5777] [ 182.922378][ T5777] CPU: 1 UID: 0 PID: 5777 Comm: syz-executor154 Not tainted 6.13.0-rc2-syzkaller-00333-ga0e3919a2df2 #0 [ 182.933752][ T5777] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 [ 182.944103][ T5777] ===================================================== [ 182.951310][ T5777] Disabling lock debugging due to kernel taint [ 182.957763][ T5777] Kernel panic - not syncing: kmsan.panic set ... [ 182.964315][ T5777] CPU: 1 UID: 0 PID: 5777 Comm: syz-executor154 Tainted: G B 6.13.0-rc2-syzkaller-00333-ga0e3919a2df2 #0 [ 182.977056][ T5777] Tainted: [B]=BAD_PAGE [ 182.981265][ T5777] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 [ 182.991422][ T5777] Call Trace: [ 182.994806][ T5777] [ 182.997872][ T5777] dump_stack_lvl+0x216/0x2d0 [ 183.002687][ T5777] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 183.008612][ T5777] dump_stack+0x1e/0x24 [ 183.012883][ T5777] panic+0x4e2/0xcf0 [ 183.016929][ T5777] ? kmsan_get_metadata+0x101/0x1c0 [ 183.022385][ T5777] kmsan_report+0x2c7/0x2d0 [ 183.026987][ T5777] ? _raw_spin_unlock_irqrestore+0x3f/0x60 [ 183.032932][ T5777] ? __msan_warning+0x95/0x120 [ 183.037821][ T5777] ? rw_aux_tree_set+0x4d2/0x580 [ 183.042913][ T5777] ? rw_aux_tree_insert_entry+0x6c3/0x970 [ 183.048742][ T5777] ? bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 183.054836][ T5777] ? bch2_bset_insert+0x1621/0x19f0 [ 183.060149][ T5777] ? bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 183.066372][ T5777] ? bch2_btree_insert_key_leaf+0x276/0x1050 [ 183.072511][ T5777] ? __bch2_trans_commit+0xaf5e/0xd190 [ 183.078280][ T5777] ? bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 183.084816][ T5777] ? bch2_trans_mark_dev_sb+0x858/0x10e0 [ 183.090574][ T5777] ? bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 183.096875][ T5777] ? bch2_trans_mark_dev_sbs+0x32/0x40 [ 183.102543][ T5777] ? bch2_fs_initialize+0x19bd/0x35d0 [ 183.108043][ T5777] ? bch2_fs_start+0x77d/0xbd0 [ 183.112988][ T5777] ? bch2_fs_get_tree+0x13ea/0x22d0 [ 183.118323][ T5777] ? vfs_get_tree+0xb1/0x5a0 [ 183.123051][ T5777] ? do_new_mount+0x71f/0x15e0 [ 183.127926][ T5777] ? path_mount+0x742/0x1f10 [ 183.132699][ T5777] ? __se_sys_mount+0x722/0x810 [ 183.137657][ T5777] ? __x64_sys_mount+0xe4/0x150 [ 183.142729][ T5777] ? x64_sys_call+0x39bf/0x3c30 [ 183.147811][ T5777] ? do_syscall_64+0xcd/0x1e0 [ 183.152624][ T5777] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 183.158835][ T5777] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 183.164764][ T5777] ? filter_irq_stacks+0x164/0x1a0 [ 183.170110][ T5777] ? stack_depot_save_flags+0x2c/0x750 [ 183.175706][ T5777] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.181048][ T5777] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 183.187563][ T5777] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.192973][ T5777] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 183.198923][ T5777] __msan_warning+0x95/0x120 [ 183.203666][ T5777] rw_aux_tree_set+0x4d2/0x580 [ 183.208539][ T5777] ? bset_aux_tree_verify+0x44d/0x4a0 [ 183.214053][ T5777] rw_aux_tree_insert_entry+0x6c3/0x970 [ 183.219820][ T5777] bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 183.225762][ T5777] ? bch2_bkey_pack_key+0x1745/0x1860 [ 183.231300][ T5777] bch2_bset_insert+0x1621/0x19f0 [ 183.236459][ T5777] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.241780][ T5777] bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 183.247713][ T5777] ? __msan_memcpy+0x108/0x1c0 [ 183.252624][ T5777] bch2_btree_insert_key_leaf+0x276/0x1050 [ 183.258576][ T5777] __bch2_trans_commit+0xaf5e/0xd190 [ 183.264058][ T5777] bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 183.270442][ T5777] ? bch2_trans_start_alloc_update_noupdate+0x179/0x12f0 [ 183.277643][ T5777] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.282942][ T5777] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 183.288872][ T5777] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.294179][ T5777] ? __pfx_kmsan_save_stack_with_flags+0x10/0x10 [ 183.300658][ T5777] bch2_trans_mark_dev_sb+0x858/0x10e0 [ 183.306388][ T5777] bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 183.312510][ T5777] bch2_trans_mark_dev_sbs+0x32/0x40 [ 183.317916][ T5777] bch2_fs_initialize+0x19bd/0x35d0 [ 183.323243][ T5777] ? kmsan_internal_poison_memory+0x49/0x90 [ 183.329295][ T5777] ? kmsan_slab_free+0xd0/0x140 [ 183.334271][ T5777] ? kfree+0x240/0xdb0 [ 183.338453][ T5777] ? bch2_printbuf_exit+0x9b/0xd0 [ 183.343636][ T5777] ? print_mount_opts+0x4ca/0x4f0 [ 183.348849][ T5777] ? bch2_fs_start+0x59/0xbd0 [ 183.353745][ T5777] ? bch2_fs_get_tree+0x13ea/0x22d0 [ 183.359160][ T5777] ? vfs_get_tree+0xb1/0x5a0 [ 183.364032][ T5777] ? do_new_mount+0x71f/0x15e0 [ 183.368890][ T5777] ? path_mount+0x742/0x1f10 [ 183.373616][ T5777] ? __se_sys_mount+0x722/0x810 [ 183.378577][ T5777] ? __x64_sys_mount+0xe4/0x150 [ 183.383531][ T5777] ? x64_sys_call+0x39bf/0x3c30 [ 183.388512][ T5777] ? do_syscall_64+0xcd/0x1e0 [ 183.393309][ T5777] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 183.399585][ T5777] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.404913][ T5777] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 183.410929][ T5777] ? kfree+0x1a7/0xdb0 [ 183.415128][ T5777] ? filter_irq_stacks+0x60/0x1a0 [ 183.420273][ T5777] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.425568][ T5777] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.430871][ T5777] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 183.436794][ T5777] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.442092][ T5777] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.447388][ T5777] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 183.453300][ T5777] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.458602][ T5777] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 183.465152][ T5777] ? llist_reverse_order+0x102/0x130 [ 183.470535][ T5777] ? kmsan_internal_unpoison_memory+0x14/0x20 [ 183.476741][ T5777] ? __closure_wake_up+0x16a/0x180 [ 183.481973][ T5777] bch2_fs_start+0x77d/0xbd0 [ 183.486700][ T5777] bch2_fs_get_tree+0x13ea/0x22d0 [ 183.491873][ T5777] vfs_get_tree+0xb1/0x5a0 [ 183.496444][ T5777] ? mount_capable+0x97/0x120 [ 183.501295][ T5777] do_new_mount+0x71f/0x15e0 [ 183.505976][ T5777] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.511352][ T5777] path_mount+0x742/0x1f10 [ 183.515916][ T5777] ? user_path_at+0x374/0x3e0 [ 183.520740][ T5777] __se_sys_mount+0x722/0x810 [ 183.525527][ T5777] __x64_sys_mount+0xe4/0x150 [ 183.530304][ T5777] x64_sys_call+0x39bf/0x3c30 [ 183.535181][ T5777] do_syscall_64+0xcd/0x1e0 [ 183.539967][ T5777] ? clear_bhb_loop+0x25/0x80 [ 183.544769][ T5777] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 183.551015][ T5777] RIP: 0033:0x7efea57a6dea [ 183.555520][ T5777] 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 [ 183.575252][ T5777] RSP: 002b:00007ffdbc605398 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 183.583788][ T5777] RAX: ffffffffffffffda RBX: 00007ffdbc6053b0 RCX: 00007efea57a6dea [ 183.591869][ T5777] RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 00007ffdbc6053b0 [ 183.599962][ T5777] RBP: 0000000000000010 R08: 00007ffdbc6053f0 R09: 00000000000059d0 [ 183.608086][ T5777] R10: 0000000000000010 R11: 0000000000000282 R12: 0000000000000004 [ 183.616199][ T5777] R13: 00007ffdbc6053f0 R14: 0000000000000003 R15: 0000000001000000 [ 183.624380][ T5777] [ 183.627778][ T5777] Kernel Offset: disabled [ 183.632184][ T5777] Rebooting in 86400 seconds..