./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3507033372 <...> Warning: Permanently added '10.128.0.188' (ED25519) to the list of known hosts. execve("./syz-executor3507033372", ["./syz-executor3507033372"], 0x7ffcdbfc7010 /* 10 vars */) = 0 brk(NULL) = 0x555566c34000 brk(0x555566c34d40) = 0x555566c34d40 arch_prctl(ARCH_SET_FS, 0x555566c343c0) = 0 set_tid_address(0x555566c34690) = 5777 set_robust_list(0x555566c346a0, 24) = 0 rseq(0x555566c34ce0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3507033372", 4096) = 28 getrandom("\x10\x8c\x4a\xbc\xea\x83\xc8\x45", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555566c34d40 brk(0x555566c55d40) = 0x555566c55d40 brk(0x555566c56000) = 0x555566c56000 mprotect(0x7f0988fc2000, 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=0x555566c34690) = 5778 ./strace-static-x86_64: Process 5778 attached [pid 5778] set_robust_list(0x555566c346a0, 24) = 0 [pid 5778] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5778] setpgid(0, 0) = 0 [pid 5778] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5778] write(3, "1000", 4) = 4 [pid 5778] close(3) = 0 [pid 5778] write(1, "executing program\n", 18executing program ) = 18 [pid 5778] futex(0x7f0988fc85ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5778] rt_sigaction(SIGRT_1, {sa_handler=0x7f0988f61230, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0988f528e0}, NULL, 8) = 0 [pid 5778] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5778] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0988ed2000 [pid 5778] mprotect(0x7f0988ed3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5778] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5778] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0988ef2990, parent_tid=0x7f0988ef2990, exit_signal=0, stack=0x7f0988ed2000, stack_size=0x20300, tls=0x7f0988ef26c0}./strace-static-x86_64: Process 5779 attached => {parent_tid=[5779]}, 88) = 5779 [pid 5778] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5778] futex(0x7f0988fc85e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5779] rseq(0x7f0988ef2fe0, 0x20, 0, 0x53053053 [pid 5778] <... futex resumed>) = 0 [pid 5778] futex(0x7f0988fc85ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5779] <... rseq resumed>) = 0 [pid 5779] set_robust_list(0x7f0988ef29a0, 24) = 0 [pid 5779] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5779] memfd_create("syzkaller", 0) = 3 [pid 5779] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0980a00000 [pid 5779] 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 5779] munmap(0x7f0980a00000, 138412032) = 0 [pid 5779] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5779] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5779] close(3) = 0 [pid 5779] close(4) = 0 [pid 5779] mkdir("./file1", 0777) = 0 [ 211.599702][ T5779] loop0: detected capacity change from 0 to 32768 [ 211.760899][ T5779] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=errors=continue,metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names [ 211.777824][ T5779] bcachefs (loop0): initializing new filesystem [ 211.789552][ T5779] bcachefs (loop0): going read-write [ 211.800408][ T5779] bcachefs (loop0): marking superblocks [ 211.829870][ T5779] ===================================================== [ 211.837158][ T5779] BUG: KMSAN: uninit-value in rw_aux_tree_set+0x4d2/0x580 [ 211.844441][ T5779] rw_aux_tree_set+0x4d2/0x580 [ 211.849603][ T5779] rw_aux_tree_insert_entry+0x6c3/0x970 [ 211.855488][ T5779] bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 211.861494][ T5779] bch2_bset_insert+0x1621/0x19f0 [ 211.866770][ T5779] bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 211.872800][ T5779] bch2_btree_insert_key_leaf+0x276/0x1050 [ 211.878869][ T5779] __bch2_trans_commit+0xaf5e/0xd190 [ 211.884394][ T5779] bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 211.890943][ T5779] bch2_trans_mark_dev_sb+0x858/0x10e0 [ 211.896731][ T5779] bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 211.902957][ T5779] bch2_trans_mark_dev_sbs+0x32/0x40 [ 211.908598][ T5779] bch2_fs_initialize+0x19bd/0x35d0 [ 211.914034][ T5779] bch2_fs_start+0x77d/0xbd0 [ 211.918892][ T5779] bch2_fs_get_tree+0x13ea/0x22d0 [ 211.924096][ T5779] vfs_get_tree+0xb1/0x5a0 [ 211.928839][ T5779] do_new_mount+0x71f/0x15e0 [ 211.933608][ T5779] path_mount+0x742/0x1f10 [ 211.938295][ T5779] __se_sys_mount+0x722/0x810 [ 211.943149][ T5779] __x64_sys_mount+0xe4/0x150 [ 211.948085][ T5779] x64_sys_call+0x39bf/0x3c30 [ 211.953035][ T5779] do_syscall_64+0xcd/0x1e0 [ 211.957855][ T5779] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 211.964024][ T5779] [ 211.966586][ T5779] Uninit was created at: [ 211.971043][ T5779] ___kmalloc_large_node+0x22c/0x370 [ 211.976622][ T5779] __kmalloc_large_node_noprof+0x3f/0x1e0 [ 211.982586][ T5779] __kmalloc_node_noprof+0xc96/0x1250 [ 211.988213][ T5779] __kvmalloc_node_noprof+0xc0/0x2d0 [ 211.993705][ T5779] __bch2_btree_node_mem_alloc+0x2be/0xa80 [ 211.999777][ T5779] bch2_fs_btree_cache_init+0x4e4/0xb50 [ 212.005639][ T5779] bch2_fs_open+0x4d3a/0x5b40 [ 212.010460][ T5779] bch2_fs_get_tree+0x983/0x22d0 [ 212.015643][ T5779] vfs_get_tree+0xb1/0x5a0 [ 212.020301][ T5779] do_new_mount+0x71f/0x15e0 [ 212.025033][ T5779] path_mount+0x742/0x1f10 [ 212.029898][ T5779] __se_sys_mount+0x722/0x810 [ 212.034700][ T5779] __x64_sys_mount+0xe4/0x150 [ 212.039640][ T5779] x64_sys_call+0x39bf/0x3c30 [ 212.044534][ T5779] do_syscall_64+0xcd/0x1e0 [ 212.049283][ T5779] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 212.055513][ T5779] [ 212.057927][ T5779] CPU: 1 UID: 0 PID: 5779 Comm: syz-executor350 Not tainted 6.13.0-rc4-syzkaller-00012-g9b2ffa6148b1 #0 [ 212.069306][ T5779] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 212.079576][ T5779] ===================================================== [ 212.086780][ T5779] Disabling lock debugging due to kernel taint [ 212.093059][ T5779] Kernel panic - not syncing: kmsan.panic set ... [ 212.099624][ T5779] CPU: 1 UID: 0 PID: 5779 Comm: syz-executor350 Tainted: G B 6.13.0-rc4-syzkaller-00012-g9b2ffa6148b1 #0 [ 212.112553][ T5779] Tainted: [B]=BAD_PAGE [ 212.116791][ T5779] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 212.126968][ T5779] Call Trace: [ 212.130363][ T5779] [ 212.133401][ T5779] dump_stack_lvl+0x216/0x2d0 [ 212.138322][ T5779] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 212.144270][ T5779] dump_stack+0x1e/0x24 [ 212.148614][ T5779] panic+0x4e2/0xcf0 [ 212.152673][ T5779] ? kmsan_get_metadata+0x71/0x1c0 [ 212.158007][ T5779] kmsan_report+0x2c7/0x2d0 [ 212.162697][ T5779] ? _raw_spin_unlock_irqrestore+0x3f/0x60 [ 212.168712][ T5779] ? __msan_warning+0x95/0x120 [ 212.173730][ T5779] ? rw_aux_tree_set+0x4d2/0x580 [ 212.178807][ T5779] ? rw_aux_tree_insert_entry+0x6c3/0x970 [ 212.184675][ T5779] ? bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 212.190794][ T5779] ? bch2_bset_insert+0x1621/0x19f0 [ 212.196118][ T5779] ? bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 212.202284][ T5779] ? bch2_btree_insert_key_leaf+0x276/0x1050 [ 212.208444][ T5779] ? __bch2_trans_commit+0xaf5e/0xd190 [ 212.214045][ T5779] ? bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 212.220638][ T5779] ? bch2_trans_mark_dev_sb+0x858/0x10e0 [ 212.226407][ T5779] ? bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 212.232737][ T5779] ? bch2_trans_mark_dev_sbs+0x32/0x40 [ 212.238367][ T5779] ? bch2_fs_initialize+0x19bd/0x35d0 [ 212.243956][ T5779] ? bch2_fs_start+0x77d/0xbd0 [ 212.248866][ T5779] ? bch2_fs_get_tree+0x13ea/0x22d0 [ 212.254193][ T5779] ? vfs_get_tree+0xb1/0x5a0 [ 212.258969][ T5779] ? do_new_mount+0x71f/0x15e0 [ 212.263861][ T5779] ? path_mount+0x742/0x1f10 [ 212.268616][ T5779] ? __se_sys_mount+0x722/0x810 [ 212.273613][ T5779] ? __x64_sys_mount+0xe4/0x150 [ 212.278650][ T5779] ? x64_sys_call+0x39bf/0x3c30 [ 212.283677][ T5779] ? do_syscall_64+0xcd/0x1e0 [ 212.288478][ T5779] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 212.294713][ T5779] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 212.300664][ T5779] ? filter_irq_stacks+0x164/0x1a0 [ 212.305933][ T5779] ? stack_depot_save_flags+0x2c/0x750 [ 212.311533][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 212.316876][ T5779] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 212.323417][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 212.328767][ T5779] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 212.334752][ T5779] __msan_warning+0x95/0x120 [ 212.339498][ T5779] rw_aux_tree_set+0x4d2/0x580 [ 212.344391][ T5779] ? bset_aux_tree_verify+0x44d/0x4a0 [ 212.349932][ T5779] rw_aux_tree_insert_entry+0x6c3/0x970 [ 212.355664][ T5779] bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 212.361614][ T5779] ? bch2_bkey_pack_key+0x1745/0x1860 [ 212.367193][ T5779] bch2_bset_insert+0x1621/0x19f0 [ 212.372421][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 212.377808][ T5779] bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 212.383825][ T5779] ? __msan_memcpy+0x108/0x1c0 [ 212.388766][ T5779] bch2_btree_insert_key_leaf+0x276/0x1050 [ 212.394792][ T5779] __bch2_trans_commit+0xaf5e/0xd190 [ 212.400267][ T5779] bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 212.406735][ T5779] ? bch2_trans_start_alloc_update_noupdate+0x179/0x12f0 [ 212.413929][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 212.419265][ T5779] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 212.425223][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 212.430611][ T5779] ? __pfx_kmsan_internal_set_shadow_origin+0x10/0x10 [ 212.437568][ T5779] bch2_trans_mark_dev_sb+0x858/0x10e0 [ 212.443258][ T5779] bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 212.449412][ T5779] bch2_trans_mark_dev_sbs+0x32/0x40 [ 212.454848][ T5779] bch2_fs_initialize+0x19bd/0x35d0 [ 212.460180][ T5779] ? kmsan_internal_poison_memory+0x49/0x90 [ 212.466236][ T5779] ? kmsan_slab_free+0xd0/0x140 [ 212.471239][ T5779] ? kfree+0x240/0xdb0 [ 212.475457][ T5779] ? bch2_printbuf_exit+0x9b/0xd0 [ 212.480689][ T5779] ? print_mount_opts+0x4ca/0x4f0 [ 212.485877][ T5779] ? bch2_fs_start+0x59/0xbd0 [ 212.490715][ T5779] ? bch2_fs_get_tree+0x13ea/0x22d0 [ 212.496038][ T5779] ? vfs_get_tree+0xb1/0x5a0 [ 212.500795][ T5779] ? do_new_mount+0x71f/0x15e0 [ 212.505689][ T5779] ? path_mount+0x742/0x1f10 [ 212.510494][ T5779] ? __se_sys_mount+0x722/0x810 [ 212.515488][ T5779] ? __x64_sys_mount+0xe4/0x150 [ 212.520471][ T5779] ? x64_sys_call+0x39bf/0x3c30 [ 212.525526][ T5779] ? do_syscall_64+0xcd/0x1e0 [ 212.530431][ T5779] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 212.536697][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 212.542033][ T5779] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 212.547980][ T5779] ? kfree+0x1a7/0xdb0 [ 212.552237][ T5779] ? filter_irq_stacks+0x60/0x1a0 [ 212.557512][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 212.562874][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 212.568310][ T5779] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 212.574278][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 212.579636][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 212.584987][ T5779] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 212.590932][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 212.596254][ T5779] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 212.602780][ T5779] ? llist_reverse_order+0x102/0x130 [ 212.608202][ T5779] ? kmsan_internal_unpoison_memory+0x14/0x20 [ 212.614464][ T5779] ? __closure_wake_up+0x16a/0x180 [ 212.619724][ T5779] bch2_fs_start+0x77d/0xbd0 [ 212.624480][ T5779] bch2_fs_get_tree+0x13ea/0x22d0 [ 212.629746][ T5779] vfs_get_tree+0xb1/0x5a0 [ 212.634329][ T5779] ? mount_capable+0x97/0x120 [ 212.639168][ T5779] do_new_mount+0x71f/0x15e0 [ 212.643914][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 212.649327][ T5779] path_mount+0x742/0x1f10 [ 212.653916][ T5779] ? user_path_at+0x374/0x3e0 [ 212.658757][ T5779] __se_sys_mount+0x722/0x810 [ 212.663575][ T5779] ? ptrace_notify+0x263/0x320 [ 212.668550][ T5779] __x64_sys_mount+0xe4/0x150 [ 212.673517][ T5779] x64_sys_call+0x39bf/0x3c30 [ 212.678362][ T5779] do_syscall_64+0xcd/0x1e0 [ 212.682985][ T5779] ? clear_bhb_loop+0x25/0x80 [ 212.687829][ T5779] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 212.693897][ T5779] RIP: 0033:0x7f0988f3c76a [ 212.698424][ T5779] 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 [ 212.718205][ T5779] RSP: 002b:00007f0988ef2088 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 212.726790][ T5779] RAX: ffffffffffffffda RBX: 00007f0988ef20a0 RCX: 00007f0988f3c76a [ 212.734926][ T5779] RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 00007f0988ef20a0 [ 212.743014][ T5779] RBP: 0000000000000004 R08: 00007f0988ef20e0 R09: 00000000000059d0 [ 212.751100][ T5779] R10: 0000000000000010 R11: 0000000000000282 R12: 00007f0988ef20e0 [ 212.759196][ T5779] R13: 0000000000000010 R14: 0000000000000003 R15: 0000000001000000 [ 212.767284][ T5779] [ 212.770834][ T5779] Kernel Offset: disabled [ 212.775252][ T5779] Rebooting in 86400 seconds..