./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor656892137 <...> Warning: Permanently added '10.128.0.115' (ED25519) to the list of known hosts. execve("./syz-executor656892137", ["./syz-executor656892137"], 0x7ffd4b0771f0 /* 10 vars */) = 0 brk(NULL) = 0x55557384d000 brk(0x55557384dd00) = 0x55557384dd00 arch_prctl(ARCH_SET_FS, 0x55557384d380) = 0 set_tid_address(0x55557384d650) = 5778 set_robust_list(0x55557384d660, 24) = 0 rseq(0x55557384dca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor656892137", 4096) = 27 getrandom("\xb8\x67\x4b\xdb\xd2\x53\x6f\x6d", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557384dd00 brk(0x55557386ed00) = 0x55557386ed00 brk(0x55557386f000) = 0x55557386f000 mprotect(0x7fd0a600a000, 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=0x55557384d650) = 5779 ./strace-static-x86_64: Process 5779 attached [pid 5779] set_robust_list(0x55557384d660, 24) = 0 [pid 5779] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5779] setpgid(0, 0) = 0 [pid 5779] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5779] write(3, "1000", 4) = 4 [pid 5779] close(3) = 0 executing program [pid 5779] write(1, "executing program\n", 18) = 18 [pid 5779] memfd_create("syzkaller", 0) = 3 [pid 5779] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd09da00000 [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(0x7fd09da00000, 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 [ 180.895543][ T5779] loop0: detected capacity change from 0 to 32768 [ 181.049542][ T5779] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=errors=continue,metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names [ 181.066472][ T5779] bcachefs (loop0): initializing new filesystem [ 181.077579][ T5779] bcachefs (loop0): going read-write [ 181.087069][ T5779] bcachefs (loop0): marking superblocks [ 181.111745][ T5779] ===================================================== [ 181.118969][ T5779] BUG: KMSAN: uninit-value in rw_aux_tree_set+0x4d2/0x580 [ 181.126474][ T5779] rw_aux_tree_set+0x4d2/0x580 [ 181.131708][ T5779] rw_aux_tree_insert_entry+0x6c3/0x970 [ 181.137418][ T5779] bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 181.143496][ T5779] bch2_bset_insert+0x1621/0x19f0 [ 181.148667][ T5779] bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 181.154728][ T5779] bch2_btree_insert_key_leaf+0x276/0x1050 [ 181.160846][ T5779] __bch2_trans_commit+0xaf5e/0xd190 [ 181.166325][ T5779] bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 181.172891][ T5779] bch2_trans_mark_dev_sb+0x858/0x10e0 [ 181.178517][ T5779] bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 181.184796][ T5779] bch2_trans_mark_dev_sbs+0x32/0x40 [ 181.190245][ T5779] bch2_fs_initialize+0x19bd/0x35d0 [ 181.195661][ T5779] bch2_fs_start+0x77d/0xbd0 [ 181.200437][ T5779] bch2_fs_get_tree+0x13ea/0x22d0 [ 181.205695][ T5779] vfs_get_tree+0xb1/0x5a0 [ 181.210319][ T5779] do_new_mount+0x71f/0x15e0 [ 181.215215][ T5779] path_mount+0x742/0x1f10 [ 181.219816][ T5779] __se_sys_mount+0x722/0x810 [ 181.224735][ T5779] __x64_sys_mount+0xe4/0x150 [ 181.229553][ T5779] x64_sys_call+0x39bf/0x3c30 [ 181.234518][ T5779] do_syscall_64+0xcd/0x1e0 [ 181.239176][ T5779] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 181.245431][ T5779] [ 181.247828][ T5779] Uninit was created at: [ 181.252396][ T5779] ___kmalloc_large_node+0x22c/0x370 [ 181.257868][ T5779] __kmalloc_large_node_noprof+0x3f/0x1e0 [ 181.263935][ T5779] __kmalloc_node_noprof+0xc96/0x1250 [ 181.269496][ T5779] __kvmalloc_node_noprof+0xc0/0x2d0 [ 181.274990][ T5779] __bch2_btree_node_mem_alloc+0x2be/0xa80 [ 181.281083][ T5779] bch2_fs_btree_cache_init+0x4e4/0xb50 [ 181.286730][ T5779] bch2_fs_open+0x4d3a/0x5b40 [ 181.291653][ T5779] bch2_fs_get_tree+0x983/0x22d0 [ 181.296743][ T5779] vfs_get_tree+0xb1/0x5a0 [ 181.301474][ T5779] do_new_mount+0x71f/0x15e0 [ 181.306198][ T5779] path_mount+0x742/0x1f10 [ 181.310868][ T5779] __se_sys_mount+0x722/0x810 [ 181.315683][ T5779] __x64_sys_mount+0xe4/0x150 [ 181.320445][ T5779] x64_sys_call+0x39bf/0x3c30 [ 181.325466][ T5779] do_syscall_64+0xcd/0x1e0 [ 181.330198][ T5779] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 181.336349][ T5779] [ 181.338805][ T5779] CPU: 1 UID: 0 PID: 5779 Comm: syz-executor656 Not tainted 6.13.0-rc2-syzkaller-00130-g150b567e0d57 #0 [ 181.350331][ T5779] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 [ 181.360633][ T5779] ===================================================== [ 181.368096][ T5779] Disabling lock debugging due to kernel taint [ 181.374500][ T5779] Kernel panic - not syncing: kmsan.panic set ... [ 181.381059][ T5779] CPU: 1 UID: 0 PID: 5779 Comm: syz-executor656 Tainted: G B 6.13.0-rc2-syzkaller-00130-g150b567e0d57 #0 [ 181.393799][ T5779] Tainted: [B]=BAD_PAGE [ 181.398121][ T5779] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 [ 181.408299][ T5779] Call Trace: [ 181.411642][ T5779] [ 181.414626][ T5779] dump_stack_lvl+0x216/0x2d0 [ 181.419447][ T5779] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 181.425361][ T5779] dump_stack+0x1e/0x24 [ 181.429622][ T5779] panic+0x4e2/0xcf0 [ 181.433644][ T5779] ? kmsan_get_metadata+0x71/0x1c0 [ 181.438879][ T5779] kmsan_report+0x2c7/0x2d0 [ 181.443494][ T5779] ? _raw_spin_unlock_irqrestore+0x3f/0x60 [ 181.449492][ T5779] ? __msan_warning+0x95/0x120 [ 181.454400][ T5779] ? rw_aux_tree_set+0x4d2/0x580 [ 181.459506][ T5779] ? rw_aux_tree_insert_entry+0x6c3/0x970 [ 181.465339][ T5779] ? bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 181.471472][ T5779] ? bch2_bset_insert+0x1621/0x19f0 [ 181.476811][ T5779] ? bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 181.482970][ T5779] ? bch2_btree_insert_key_leaf+0x276/0x1050 [ 181.489103][ T5779] ? __bch2_trans_commit+0xaf5e/0xd190 [ 181.494734][ T5779] ? bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 181.501270][ T5779] ? bch2_trans_mark_dev_sb+0x858/0x10e0 [ 181.507008][ T5779] ? bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 181.513280][ T5779] ? bch2_trans_mark_dev_sbs+0x32/0x40 [ 181.518853][ T5779] ? bch2_fs_initialize+0x19bd/0x35d0 [ 181.524333][ T5779] ? bch2_fs_start+0x77d/0xbd0 [ 181.529216][ T5779] ? bch2_fs_get_tree+0x13ea/0x22d0 [ 181.534540][ T5779] ? vfs_get_tree+0xb1/0x5a0 [ 181.539332][ T5779] ? do_new_mount+0x71f/0x15e0 [ 181.544179][ T5779] ? path_mount+0x742/0x1f10 [ 181.548887][ T5779] ? __se_sys_mount+0x722/0x810 [ 181.553840][ T5779] ? __x64_sys_mount+0xe4/0x150 [ 181.558781][ T5779] ? x64_sys_call+0x39bf/0x3c30 [ 181.563762][ T5779] ? do_syscall_64+0xcd/0x1e0 [ 181.568552][ T5779] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 181.574838][ T5779] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 181.580778][ T5779] ? filter_irq_stacks+0x164/0x1a0 [ 181.586072][ T5779] ? stack_depot_save_flags+0x2c/0x750 [ 181.591646][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.596956][ T5779] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 181.603442][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.608735][ T5779] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 181.614643][ T5779] __msan_warning+0x95/0x120 [ 181.619354][ T5779] rw_aux_tree_set+0x4d2/0x580 [ 181.624236][ T5779] ? bset_aux_tree_verify+0x44d/0x4a0 [ 181.629768][ T5779] rw_aux_tree_insert_entry+0x6c3/0x970 [ 181.635466][ T5779] bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 181.641436][ T5779] ? bch2_bkey_pack_key+0x1745/0x1860 [ 181.646970][ T5779] bch2_bset_insert+0x1621/0x19f0 [ 181.652153][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.657463][ T5779] bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 181.663414][ T5779] ? __msan_memcpy+0x108/0x1c0 [ 181.668318][ T5779] bch2_btree_insert_key_leaf+0x276/0x1050 [ 181.674258][ T5779] __bch2_trans_commit+0xaf5e/0xd190 [ 181.679712][ T5779] bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 181.686098][ T5779] ? bch2_trans_start_alloc_update_noupdate+0x179/0x12f0 [ 181.693292][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.698649][ T5779] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 181.704593][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.709967][ T5779] ? __pfx_kmsan_internal_set_shadow_origin+0x10/0x10 [ 181.716907][ T5779] bch2_trans_mark_dev_sb+0x858/0x10e0 [ 181.722543][ T5779] bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 181.728648][ T5779] bch2_trans_mark_dev_sbs+0x32/0x40 [ 181.734064][ T5779] bch2_fs_initialize+0x19bd/0x35d0 [ 181.739370][ T5779] ? kmsan_internal_poison_memory+0x49/0x90 [ 181.745389][ T5779] ? kmsan_slab_free+0xd0/0x140 [ 181.750363][ T5779] ? kfree+0x240/0xdb0 [ 181.754536][ T5779] ? bch2_printbuf_exit+0x9b/0xd0 [ 181.759670][ T5779] ? print_mount_opts+0x4ca/0x4f0 [ 181.764812][ T5779] ? bch2_fs_start+0x59/0xbd0 [ 181.769603][ T5779] ? bch2_fs_get_tree+0x13ea/0x22d0 [ 181.774897][ T5779] ? vfs_get_tree+0xb1/0x5a0 [ 181.779613][ T5779] ? do_new_mount+0x71f/0x15e0 [ 181.784466][ T5779] ? path_mount+0x742/0x1f10 [ 181.789172][ T5779] ? __se_sys_mount+0x722/0x810 [ 181.794110][ T5779] ? __x64_sys_mount+0xe4/0x150 [ 181.799054][ T5779] ? x64_sys_call+0x39bf/0x3c30 [ 181.804028][ T5779] ? do_syscall_64+0xcd/0x1e0 [ 181.808797][ T5779] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 181.815029][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.820340][ T5779] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 181.826254][ T5779] ? kfree+0x1a7/0xdb0 [ 181.830431][ T5779] ? filter_irq_stacks+0x60/0x1a0 [ 181.835572][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.840897][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.846250][ T5779] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 181.852191][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.857542][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.862861][ T5779] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 181.868829][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.874154][ T5779] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 181.880691][ T5779] ? llist_reverse_order+0x102/0x130 [ 181.886154][ T5779] ? kmsan_internal_unpoison_memory+0x14/0x20 [ 181.892428][ T5779] ? __closure_wake_up+0x16a/0x180 [ 181.897690][ T5779] bch2_fs_start+0x77d/0xbd0 [ 181.902447][ T5779] bch2_fs_get_tree+0x13ea/0x22d0 [ 181.907612][ T5779] vfs_get_tree+0xb1/0x5a0 [ 181.912192][ T5779] ? mount_capable+0x97/0x120 [ 181.916978][ T5779] do_new_mount+0x71f/0x15e0 [ 181.921658][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 181.926962][ T5779] path_mount+0x742/0x1f10 [ 181.931568][ T5779] ? user_path_at+0x374/0x3e0 [ 181.936443][ T5779] __se_sys_mount+0x722/0x810 [ 181.941228][ T5779] ? ptrace_notify+0x263/0x320 [ 181.946183][ T5779] __x64_sys_mount+0xe4/0x150 [ 181.950964][ T5779] x64_sys_call+0x39bf/0x3c30 [ 181.955777][ T5779] do_syscall_64+0xcd/0x1e0 [ 181.960419][ T5779] ? clear_bhb_loop+0x25/0x80 [ 181.965214][ T5779] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 181.971672][ T5779] RIP: 0033:0x7fd0a5f92dea [ 181.976165][ 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 b8 ff ff ff f7 d8 64 89 01 48 [ 181.995928][ T5779] RSP: 002b:00007fff697d1ba8 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 182.004466][ T5779] RAX: ffffffffffffffda RBX: 00007fff697d1bc0 RCX: 00007fd0a5f92dea [ 182.012524][ T5779] RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 00007fff697d1bc0 [ 182.020574][ T5779] RBP: 0000000000000010 R08: 00007fff697d1c00 R09: 00000000000059c7 [ 182.028623][ T5779] R10: 0000000000000010 R11: 0000000000000282 R12: 0000000000000004 [ 182.036675][ T5779] R13: 00007fff697d1c00 R14: 0000000000000003 R15: 0000000001000000 [ 182.044768][ T5779] [ 182.048195][ T5779] Kernel Offset: disabled [ 182.052583][ T5779] Rebooting in 86400 seconds..