./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1087762847 <...> Warning: Permanently added '10.128.0.199' (ED25519) to the list of known hosts. execve("./syz-executor1087762847", ["./syz-executor1087762847"], 0x7ffcaeac4a90 /* 10 vars */) = 0 brk(NULL) = 0x555562d38000 brk(0x555562d38d40) = 0x555562d38d40 arch_prctl(ARCH_SET_FS, 0x555562d383c0) = 0 set_tid_address(0x555562d38690) = 5781 set_robust_list(0x555562d386a0, 24) = 0 rseq(0x555562d38ce0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1087762847", 4096) = 28 getrandom("\xb6\xb2\x14\x2b\xac\xf2\x22\x97", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555562d38d40 brk(0x555562d59d40) = 0x555562d59d40 brk(0x555562d5a000) = 0x555562d5a000 mprotect(0x7f363a5f1000, 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=0x555562d38690) = 5782 ./strace-static-x86_64: Process 5782 attached [pid 5782] set_robust_list(0x555562d386a0, 24) = 0 [pid 5782] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5782] setpgid(0, 0) = 0 [pid 5782] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5782] write(3, "1000", 4) = 4 [pid 5782] close(3executing program ) = 0 [pid 5782] write(1, "executing program\n", 18) = 18 [pid 5782] futex(0x7f363a5f75ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5782] rt_sigaction(SIGRT_1, {sa_handler=0x7f363a590230, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f363a5818e0}, NULL, 8) = 0 [pid 5782] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5782] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f363a501000 [pid 5782] mprotect(0x7f363a502000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5782] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5782] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f363a521990, parent_tid=0x7f363a521990, exit_signal=0, stack=0x7f363a501000, stack_size=0x20300, tls=0x7f363a5216c0} => {parent_tid=[5783]}, 88) = 5783 ./strace-static-x86_64: Process 5783 attached [pid 5782] rt_sigprocmask(SIG_SETMASK, [], [pid 5783] rseq(0x7f363a521fe0, 0x20, 0, 0x53053053) = 0 [pid 5782] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5783] set_robust_list(0x7f363a5219a0, 24) = 0 [pid 5782] futex(0x7f363a5f75e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5783] rt_sigprocmask(SIG_SETMASK, [], [pid 5782] <... futex resumed>) = 0 [pid 5783] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5782] futex(0x7f363a5f75ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5783] memfd_create("syzkaller", 0) = 3 [pid 5783] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3632000000 [pid 5783] 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 5783] munmap(0x7f3632000000, 138412032) = 0 [pid 5783] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5783] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5783] close(3) = 0 [pid 5783] close(4) = 0 [pid 5783] mkdir("./file1", 0777) = 0 [ 180.771546][ T5783] loop0: detected capacity change from 0 to 32768 [ 180.907366][ T5783] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=errors=continue,metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names [ 180.924660][ T5783] bcachefs (loop0): initializing new filesystem [ 180.935969][ T5783] bcachefs (loop0): going read-write [ 180.944818][ T5783] bcachefs (loop0): marking superblocks [ 180.971489][ T5783] ===================================================== [ 180.978729][ T5783] BUG: KMSAN: uninit-value in rw_aux_tree_set+0x4d2/0x580 [ 180.986277][ T5783] rw_aux_tree_set+0x4d2/0x580 [ 180.991373][ T5783] rw_aux_tree_insert_entry+0x6c3/0x970 [ 180.997095][ T5783] bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 181.003228][ T5783] bch2_bset_insert+0x1621/0x19f0 [ 181.008406][ T5783] bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 181.014489][ T5783] bch2_btree_insert_key_leaf+0x276/0x1050 [ 181.020657][ T5783] __bch2_trans_commit+0xaf5e/0xd190 [ 181.026124][ T5783] bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 181.032671][ T5783] bch2_trans_mark_dev_sb+0x858/0x10e0 [ 181.038393][ T5783] bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 181.044715][ T5783] bch2_trans_mark_dev_sbs+0x32/0x40 [ 181.050322][ T5783] bch2_fs_initialize+0x19bd/0x35d0 [ 181.055805][ T5783] bch2_fs_start+0x77d/0xbd0 [ 181.060724][ T5783] bch2_fs_get_tree+0x13ea/0x22d0 [ 181.065911][ T5783] vfs_get_tree+0xb1/0x5a0 [ 181.070649][ T5783] do_new_mount+0x71f/0x15e0 [ 181.075405][ T5783] path_mount+0x742/0x1f10 [ 181.079939][ T5783] __se_sys_mount+0x722/0x810 [ 181.084883][ T5783] __x64_sys_mount+0xe4/0x150 [ 181.089715][ T5783] x64_sys_call+0x39bf/0x3c30 [ 181.094739][ T5783] do_syscall_64+0xcd/0x1e0 [ 181.099404][ T5783] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 181.105599][ T5783] [ 181.108035][ T5783] Uninit was created at: [ 181.112732][ T5783] ___kmalloc_large_node+0x22c/0x370 [ 181.118222][ T5783] __kmalloc_large_node_noprof+0x3f/0x1e0 [ 181.124300][ T5783] __kmalloc_node_noprof+0xc96/0x1250 [ 181.129957][ T5783] __kvmalloc_node_noprof+0xc0/0x2d0 [ 181.135602][ T5783] __bch2_btree_node_mem_alloc+0x2be/0xa80 [ 181.141741][ T5783] bch2_fs_btree_cache_init+0x4e4/0xb50 [ 181.147461][ T5783] bch2_fs_open+0x4d3a/0x5b40 [ 181.152409][ T5783] bch2_fs_get_tree+0x983/0x22d0 [ 181.157518][ T5783] vfs_get_tree+0xb1/0x5a0 [ 181.162230][ T5783] do_new_mount+0x71f/0x15e0 [ 181.166973][ T5783] path_mount+0x742/0x1f10 [ 181.171673][ T5783] __se_sys_mount+0x722/0x810 [ 181.176489][ T5783] __x64_sys_mount+0xe4/0x150 [ 181.181423][ T5783] x64_sys_call+0x39bf/0x3c30 [ 181.186287][ T5783] do_syscall_64+0xcd/0x1e0 [ 181.191056][ T5783] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 181.197143][ T5783] [ 181.199567][ T5783] CPU: 1 UID: 0 PID: 5783 Comm: syz-executor108 Not tainted 6.13.0-rc4-syzkaller-00012-g9b2ffa6148b1 #0 [ 181.211049][ T5783] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 181.221331][ T5783] ===================================================== [ 181.228323][ T5783] Disabling lock debugging due to kernel taint [ 181.234699][ T5783] Kernel panic - not syncing: kmsan.panic set ... [ 181.241237][ T5783] CPU: 1 UID: 0 PID: 5783 Comm: syz-executor108 Tainted: G B 6.13.0-rc4-syzkaller-00012-g9b2ffa6148b1 #0 [ 181.253953][ T5783] Tainted: [B]=BAD_PAGE [ 181.258158][ T5783] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 181.268299][ T5783] Call Trace: [ 181.271671][ T5783] [ 181.274690][ T5783] dump_stack_lvl+0x216/0x2d0 [ 181.279491][ T5783] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 181.285404][ T5783] dump_stack+0x1e/0x24 [ 181.289666][ T5783] panic+0x4e2/0xcf0 [ 181.293700][ T5783] ? kmsan_get_metadata+0x71/0x1c0 [ 181.299008][ T5783] kmsan_report+0x2c7/0x2d0 [ 181.303626][ T5783] ? _raw_spin_unlock_irqrestore+0x3f/0x60 [ 181.309560][ T5783] ? __msan_warning+0x95/0x120 [ 181.314447][ T5783] ? rw_aux_tree_set+0x4d2/0x580 [ 181.319481][ T5783] ? rw_aux_tree_insert_entry+0x6c3/0x970 [ 181.325306][ T5783] ? bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 181.331389][ T5783] ? bch2_bset_insert+0x1621/0x19f0 [ 181.336678][ T5783] ? bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 181.342773][ T5783] ? bch2_btree_insert_key_leaf+0x276/0x1050 [ 181.348869][ T5783] ? __bch2_trans_commit+0xaf5e/0xd190 [ 181.354438][ T5783] ? bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 181.360975][ T5783] ? bch2_trans_mark_dev_sb+0x858/0x10e0 [ 181.366735][ T5783] ? bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 181.373039][ T5783] ? bch2_trans_mark_dev_sbs+0x32/0x40 [ 181.378699][ T5783] ? bch2_fs_initialize+0x19bd/0x35d0 [ 181.384198][ T5783] ? bch2_fs_start+0x77d/0xbd0 [ 181.389169][ T5783] ? bch2_fs_get_tree+0x13ea/0x22d0 [ 181.394470][ T5783] ? vfs_get_tree+0xb1/0x5a0 [ 181.399184][ T5783] ? do_new_mount+0x71f/0x15e0 [ 181.404047][ T5783] ? path_mount+0x742/0x1f10 [ 181.408779][ T5783] ? __se_sys_mount+0x722/0x810 [ 181.413720][ T5783] ? __x64_sys_mount+0xe4/0x150 [ 181.418689][ T5783] ? x64_sys_call+0x39bf/0x3c30 [ 181.423768][ T5783] ? do_syscall_64+0xcd/0x1e0 [ 181.428533][ T5783] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 181.434729][ T5783] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 181.440666][ T5783] ? filter_irq_stacks+0x164/0x1a0 [ 181.445968][ T5783] ? stack_depot_save_flags+0x2c/0x750 [ 181.451552][ T5783] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.456850][ T5783] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 181.463313][ T5783] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.468609][ T5783] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 181.474531][ T5783] __msan_warning+0x95/0x120 [ 181.479331][ T5783] rw_aux_tree_set+0x4d2/0x580 [ 181.484202][ T5783] ? bset_aux_tree_verify+0x44d/0x4a0 [ 181.489769][ T5783] rw_aux_tree_insert_entry+0x6c3/0x970 [ 181.495441][ T5783] bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 181.501369][ T5783] ? bch2_bkey_pack_key+0x1745/0x1860 [ 181.506874][ T5783] bch2_bset_insert+0x1621/0x19f0 [ 181.512001][ T5783] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.517395][ T5783] bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 181.523323][ T5783] ? __msan_memcpy+0x108/0x1c0 [ 181.528236][ T5783] bch2_btree_insert_key_leaf+0x276/0x1050 [ 181.534174][ T5783] __bch2_trans_commit+0xaf5e/0xd190 [ 181.539614][ T5783] bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 181.545982][ T5783] ? bch2_trans_start_alloc_update_noupdate+0x179/0x12f0 [ 181.553231][ T5783] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.558525][ T5783] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 181.564437][ T5783] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.569731][ T5783] ? __pfx_kmsan_internal_set_shadow_origin+0x10/0x10 [ 181.576638][ T5783] bch2_trans_mark_dev_sb+0x858/0x10e0 [ 181.582272][ T5783] bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 181.588386][ T5783] bch2_trans_mark_dev_sbs+0x32/0x40 [ 181.593781][ T5783] bch2_fs_initialize+0x19bd/0x35d0 [ 181.599085][ T5783] ? kmsan_internal_poison_memory+0x49/0x90 [ 181.605106][ T5783] ? kmsan_slab_free+0xd0/0x140 [ 181.610079][ T5783] ? kfree+0x240/0xdb0 [ 181.614255][ T5783] ? bch2_printbuf_exit+0x9b/0xd0 [ 181.619396][ T5783] ? print_mount_opts+0x4ca/0x4f0 [ 181.624544][ T5783] ? bch2_fs_start+0x59/0xbd0 [ 181.629369][ T5783] ? bch2_fs_get_tree+0x13ea/0x22d0 [ 181.634690][ T5783] ? vfs_get_tree+0xb1/0x5a0 [ 181.639478][ T5783] ? do_new_mount+0x71f/0x15e0 [ 181.644361][ T5783] ? path_mount+0x742/0x1f10 [ 181.649072][ T5783] ? __se_sys_mount+0x722/0x810 [ 181.654015][ T5783] ? __x64_sys_mount+0xe4/0x150 [ 181.658955][ T5783] ? x64_sys_call+0x39bf/0x3c30 [ 181.663930][ T5783] ? do_syscall_64+0xcd/0x1e0 [ 181.668727][ T5783] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 181.675007][ T5783] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.680346][ T5783] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 181.686315][ T5783] ? kfree+0x1a7/0xdb0 [ 181.690509][ T5783] ? filter_irq_stacks+0x60/0x1a0 [ 181.695707][ T5783] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.701005][ T5783] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.706300][ T5783] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 181.712210][ T5783] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.717505][ T5783] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.722797][ T5783] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 181.728704][ T5783] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.734032][ T5783] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 181.740548][ T5783] ? llist_reverse_order+0x102/0x130 [ 181.745998][ T5783] ? kmsan_internal_unpoison_memory+0x14/0x20 [ 181.752211][ T5783] ? __closure_wake_up+0x16a/0x180 [ 181.757441][ T5783] bch2_fs_start+0x77d/0xbd0 [ 181.762175][ T5783] bch2_fs_get_tree+0x13ea/0x22d0 [ 181.767351][ T5783] vfs_get_tree+0xb1/0x5a0 [ 181.771915][ T5783] ? mount_capable+0x97/0x120 [ 181.776724][ T5783] do_new_mount+0x71f/0x15e0 [ 181.781405][ T5783] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.786718][ T5783] path_mount+0x742/0x1f10 [ 181.791265][ T5783] ? user_path_at+0x374/0x3e0 [ 181.796080][ T5783] __se_sys_mount+0x722/0x810 [ 181.800858][ T5783] ? ptrace_notify+0x263/0x320 [ 181.805803][ T5783] __x64_sys_mount+0xe4/0x150 [ 181.810670][ T5783] x64_sys_call+0x39bf/0x3c30 [ 181.815469][ T5783] do_syscall_64+0xcd/0x1e0 [ 181.820076][ T5783] ? clear_bhb_loop+0x25/0x80 [ 181.824983][ T5783] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 181.831020][ T5783] RIP: 0033:0x7f363a56b76a [ 181.835545][ T5783] 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 b0 ff ff ff f7 d8 64 89 01 48 [ 181.855626][ T5783] RSP: 002b:00007f363a521088 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 181.864175][ T5783] RAX: ffffffffffffffda RBX: 00007f363a5210a0 RCX: 00007f363a56b76a [ 181.872252][ T5783] RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 00007f363a5210a0 [ 181.880318][ T5783] RBP: 0000000000000004 R08: 00007f363a5210e0 R09: 00000000000059e4 [ 181.888381][ T5783] R10: 0000000000000010 R11: 0000000000000282 R12: 00007f363a5210e0 [ 181.896556][ T5783] R13: 0000000000000010 R14: 0000000000000003 R15: 0000000001000000 [ 181.904694][ T5783] [ 181.907969][ T5783] Kernel Offset: disabled [ 181.912387][ T5783] Rebooting in 86400 seconds..