[ 47.852685] bond0 (unregistering): Released all slaves Warning: Permanently added '10.128.15.228' (ECDSA) to the list of known hosts. 2019/12/10 14:49:52 parsed 1 programs 2019/12/10 14:49:52 executed programs: 0 [ 53.135213] IPVS: ftp: loaded support on port[0] = 21 [ 53.144379] IPVS: ftp: loaded support on port[0] = 21 [ 53.154193] IPVS: ftp: loaded support on port[0] = 21 [ 53.164863] IPVS: ftp: loaded support on port[0] = 21 [ 53.181374] IPVS: ftp: loaded support on port[0] = 21 [ 53.195579] IPVS: ftp: loaded support on port[0] = 21 [ 53.252090] ntfs: (device loop4): is_boot_sector_ntfs(): Invalid end of sector marker. [ 53.272912] ================================================================== [ 53.280304] BUG: KASAN: use-after-free in ntfs_attr_find+0x9df/0xb00 [ 53.286787] Read of size 4 at addr ffff8881bee7ad35 by task syz-executor4/4445 [ 53.294745] [ 53.296365] CPU: 0 PID: 4445 Comm: syz-executor4 Not tainted 5.5.0-rc1-syzkaller #0 [ 53.304151] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.313498] Call Trace: [ 53.316080] dump_stack+0x12f/0x187 [ 53.319814] ? ntfs_attr_find+0x9df/0xb00 [ 53.323950] print_address_description.constprop.8+0x3b/0x60 [ 53.329732] ? ntfs_attr_find+0x9df/0xb00 [ 53.333857] ? ntfs_attr_find+0x9df/0xb00 [ 53.337979] __kasan_report.cold.11+0x1b/0x39 [ 53.342460] ? __isolate_free_page+0x3e0/0x490 [ 53.347026] ? ntfs_attr_find+0x9df/0xb00 [ 53.351150] kasan_report+0x12/0x20 [ 53.354765] __asan_report_load_n_noabort+0xf/0x20 [ 53.359686] ntfs_attr_find+0x9df/0xb00 [ 53.363661] ? __alloc_pages_nodemask+0x563/0x850 [ 53.368485] ? __switch_to_asm+0x34/0x70 [ 53.372524] ? __switch_to_asm+0x40/0x70 [ 53.376580] ? __kasan_check_write+0x14/0x20 [ 53.380964] ntfs_attr_lookup+0x10c9/0x23c0 [ 53.385269] ? kasan_unpoison_shadow+0x35/0x50 [ 53.389834] ? __kasan_kmalloc.constprop.7+0xc1/0xd0 [ 53.394912] ? kmem_cache_alloc+0x30b/0x740 [ 53.399234] ? ntfs_attr_reinit_search_ctx+0x3a0/0x3a0 [ 53.404480] ntfs_read_inode_mount+0x6bf/0x20c0 [ 53.409135] ntfs_fill_super+0x121e/0x2d50 [ 53.413357] ? snprintf+0x91/0xc0 [ 53.416789] ? vsprintf+0x20/0x20 [ 53.420229] mount_bdev+0x27b/0x340 [ 53.423829] ? load_system_files+0x6530/0x6530 [ 53.428393] ? ntfs_rl_punch_nolock+0x1ec0/0x1ec0 [ 53.433222] ntfs_mount+0x10/0x20 [ 53.436913] legacy_get_tree+0x103/0x1f0 [ 53.440946] vfs_get_tree+0x8b/0x2d0 [ 53.444632] ? capable+0x14/0x20 [ 53.448060] do_mount+0x1285/0x1b70 [ 53.451660] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 53.456482] ? copy_mount_string+0x20/0x20 [ 53.460691] ? kmem_cache_alloc_trace+0x372/0x760 [ 53.465506] ? __kasan_check_write+0x14/0x20 [ 53.469892] ? __kasan_check_read+0x11/0x20 [ 53.474183] ? copy_mount_options+0x77/0x2c0 [ 53.478563] ksys_mount+0xba/0xe0 [ 53.482085] __x64_sys_mount+0xb9/0x150 [ 53.486032] do_syscall_64+0xd0/0x600 [ 53.489807] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 53.494969] RIP: 0033:0x457dea [ 53.498143] Code: b8 a6 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 dd 8f fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 ba 8f fb ff c3 66 0f 1f 84 00 00 00 00 00 [ 53.517017] RSP: 002b:00007fec295efbb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 53.524784] RAX: ffffffffffffffda RBX: 0000000020000000 RCX: 0000000000457dea [ 53.532032] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fec295efc00 [ 53.539275] RBP: 0000000000000002 R08: 000000002007e200 R09: 0000000020000000 [ 53.546523] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 53.553765] R13: 000000000000066c R14: 00000000006fbac0 R15: 0000000000000000 [ 53.561020] [ 53.562632] Allocated by task 3855: [ 53.566236] save_stack+0x21/0x90 [ 53.569670] __kasan_kmalloc.constprop.7+0xc1/0xd0 [ 53.574632] kasan_slab_alloc+0x12/0x20 [ 53.578653] kmem_cache_alloc+0x121/0x740 [ 53.582792] getname_flags+0xb8/0x510 [ 53.586579] user_path_at_empty+0x1e/0x40 [ 53.590702] vfs_statx+0xbe/0x150 [ 53.594141] __do_sys_newstat+0x85/0xe0 [ 53.598086] __x64_sys_newstat+0x4f/0x70 [ 53.602139] do_syscall_64+0xd0/0x600 [ 53.605932] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 53.611093] [ 53.612694] Freed by task 3855: [ 53.615946] save_stack+0x21/0x90 [ 53.619372] __kasan_slab_free+0x11a/0x170 [ 53.623592] kasan_slab_free+0xe/0x10 [ 53.627362] kmem_cache_free+0x86/0x2e0 [ 53.631323] putname+0xa8/0xe0 [ 53.634488] filename_lookup.part.61+0x1e8/0x330 [ 53.639233] user_path_at_empty+0x39/0x40 [ 53.643353] vfs_statx+0xbe/0x150 [ 53.646786] __do_sys_newstat+0x85/0xe0 [ 53.650737] __x64_sys_newstat+0x4f/0x70 [ 53.654772] do_syscall_64+0xd0/0x600 [ 53.658555] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 53.663714] [ 53.665315] The buggy address belongs to the object at ffff8881bee7a0c0 [ 53.665315] which belongs to the cache names_cache of size 4096 [ 53.678027] The buggy address is located 3189 bytes inside of [ 53.678027] 4096-byte region [ffff8881bee7a0c0, ffff8881bee7b0c0) [ 53.690163] The buggy address belongs to the page: [ 53.695068] page:ffffea0006fb9e80 refcount:1 mapcount:0 mapping:ffff8881da19aa80 index:0x0 compound_mapcount: 0 [ 53.705278] raw: 02fffc0000010200 ffffea0006fb9c08 ffffea0006fb8288 ffff8881da19aa80 [ 53.713176] raw: 0000000000000000 ffff8881bee7a0c0 0000000100000001 0000000000000000 [ 53.721030] page dumped because: kasan: bad access detected [ 53.726712] [ 53.728315] Memory state around the buggy address: [ 53.733354] ffff8881bee7ac00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 53.740694] ffff8881bee7ac80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 53.748041] >ffff8881bee7ad00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 53.755375] ^ [ 53.760274] ffff8881bee7ad80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 53.767604] ffff8881bee7ae00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 53.774937] ================================================================== [ 53.782269] Disabling lock debugging due to kernel taint [ 53.787862] Kernel panic - not syncing: panic_on_warn set ... [ 53.793744] CPU: 0 PID: 4445 Comm: syz-executor4 Tainted: G B 5.5.0-rc1-syzkaller #0 [ 53.802908] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.812236] Call Trace: [ 53.814804] dump_stack+0x12f/0x187 [ 53.818429] ? ntfs_attr_find+0x940/0xb00 [ 53.822658] panic+0x22a/0x4f5 [ 53.825832] ? add_taint.cold.7+0x11/0x11 [ 53.829958] ? do_raw_spin_unlock+0x54/0x260 [ 53.834363] ? do_raw_spin_unlock+0x54/0x260 [ 53.838787] ? ntfs_attr_find+0x9df/0xb00 [ 53.842926] ? ntfs_attr_find+0x9df/0xb00 [ 53.847066] end_report+0x47/0x4f [ 53.850500] __kasan_report.cold.11+0xe/0x39 [ 53.854894] ? __isolate_free_page+0x3e0/0x490 [ 53.859462] ? ntfs_attr_find+0x9df/0xb00 [ 53.863584] kasan_report+0x12/0x20 [ 53.867199] __asan_report_load_n_noabort+0xf/0x20 [ 53.872104] ntfs_attr_find+0x9df/0xb00 [ 53.876051] ? __alloc_pages_nodemask+0x563/0x850 [ 53.880874] ? __switch_to_asm+0x34/0x70 [ 53.884916] ? __switch_to_asm+0x40/0x70 [ 53.888951] ? __kasan_check_write+0x14/0x20 [ 53.893603] ntfs_attr_lookup+0x10c9/0x23c0 [ 53.897902] ? kasan_unpoison_shadow+0x35/0x50 [ 53.902470] ? __kasan_kmalloc.constprop.7+0xc1/0xd0 [ 53.907562] ? kmem_cache_alloc+0x30b/0x740 [ 53.911873] ? ntfs_attr_reinit_search_ctx+0x3a0/0x3a0 [ 53.917136] ntfs_read_inode_mount+0x6bf/0x20c0 [ 53.921787] ntfs_fill_super+0x121e/0x2d50 [ 53.926267] ? snprintf+0x91/0xc0 [ 53.929695] ? vsprintf+0x20/0x20 [ 53.933122] mount_bdev+0x27b/0x340 [ 53.936762] ? load_system_files+0x6530/0x6530 [ 53.941324] ? ntfs_rl_punch_nolock+0x1ec0/0x1ec0 [ 53.946150] ntfs_mount+0x10/0x20 [ 53.950540] legacy_get_tree+0x103/0x1f0 [ 53.954590] vfs_get_tree+0x8b/0x2d0 [ 53.958286] ? capable+0x14/0x20 [ 53.962943] do_mount+0x1285/0x1b70 [ 53.967176] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 53.972971] ? copy_mount_string+0x20/0x20 [ 53.977197] ? kmem_cache_alloc_trace+0x372/0x760 [ 53.982031] ? __kasan_check_write+0x14/0x20 [ 53.986434] ? __kasan_check_read+0x11/0x20 [ 53.990741] ? copy_mount_options+0x77/0x2c0 [ 53.995214] ksys_mount+0xba/0xe0 [ 53.998647] __x64_sys_mount+0xb9/0x150 [ 54.002606] do_syscall_64+0xd0/0x600 [ 54.006394] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 54.011614] RIP: 0033:0x457dea [ 54.014788] Code: b8 a6 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 dd 8f fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 ba 8f fb ff c3 66 0f 1f 84 00 00 00 00 00 [ 54.033672] RSP: 002b:00007fec295efbb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 54.041362] RAX: ffffffffffffffda RBX: 0000000020000000 RCX: 0000000000457dea [ 54.048615] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fec295efc00 [ 54.055894] RBP: 0000000000000002 R08: 000000002007e200 R09: 0000000020000000 [ 54.063145] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 54.070398] R13: 000000000000066c R14: 00000000006fbac0 R15: 0000000000000000 [ 54.077698] Kernel Offset: disabled [ 54.081305] Rebooting in 86400 seconds..