[ 45.004549] bond0 (unregistering): Released all slaves Warning: Permanently added '10.128.0.86' (ECDSA) to the list of known hosts. 2020/03/16 23:09:29 parsed 1 programs 2020/03/16 23:09:29 executed programs: 0 [ 50.225105] IPVS: ftp: loaded support on port[0] = 21 [ 50.232839] IPVS: ftp: loaded support on port[0] = 21 [ 50.240351] IPVS: ftp: loaded support on port[0] = 21 [ 50.252040] IPVS: ftp: loaded support on port[0] = 21 [ 50.259631] IPVS: ftp: loaded support on port[0] = 21 [ 50.275778] IPVS: ftp: loaded support on port[0] = 21 [ 50.338331] ntfs: (device loop0): is_boot_sector_ntfs(): Invalid end of sector marker. [ 50.351664] ntfs: (device loop0): ntfs_read_inode_mount(): $MFT/$DATA attribute not found. $MFT is corrupt. Run chkdsk. [ 50.362761] ntfs: (device loop0): ntfs_read_inode_mount(): Failed. Marking inode as bad. [ 50.371032] ntfs: (device loop0): ntfs_fill_super(): Failed to load essential metadata. [ 50.380151] ntfs: (device loop5): is_boot_sector_ntfs(): Invalid end of sector marker. [ 50.389992] ================================================================== [ 50.397387] BUG: KASAN: use-after-free in ntfs_attr_find+0x9df/0xb00 [ 50.403874] Read of size 4 at addr ffff8881c612ad35 by task syz-executor5/4459 [ 50.411226] [ 50.412858] CPU: 0 PID: 4459 Comm: syz-executor5 Not tainted 5.6.0-rc6-syzkaller #0 [ 50.421080] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.430593] Call Trace: [ 50.433168] dump_stack+0x12f/0x187 [ 50.437036] ? ntfs_attr_find+0x9df/0xb00 [ 50.441176] print_address_description.constprop.8+0x3b/0x60 [ 50.446967] ? ntfs_attr_find+0x9df/0xb00 [ 50.451100] ? ntfs_attr_find+0x9df/0xb00 [ 50.455224] __kasan_report.cold.11+0x1b/0x32 [ 50.459695] ? __schedule+0x7a0/0x1900 [ 50.463558] ? ntfs_attr_find+0x9df/0xb00 [ 50.467683] kasan_report+0x12/0x20 [ 50.471294] __asan_report_load_n_noabort+0xf/0x20 [ 50.476306] ntfs_attr_find+0x9df/0xb00 [ 50.481238] ? prepare_to_wait+0x136/0x350 [ 50.485469] ntfs_attr_lookup+0x10c9/0x23c0 [ 50.489863] ? kasan_unpoison_shadow+0x35/0x50 [ 50.494428] ? __kasan_kmalloc.constprop.7+0xc1/0xd0 [ 50.499695] ? kmem_cache_alloc+0x30b/0x740 [ 50.503994] ? ntfs_attr_reinit_search_ctx+0x3a0/0x3a0 [ 50.509254] ? var_wake_function+0x150/0x150 [ 50.514003] ntfs_read_inode_mount+0x6bf/0x20c0 [ 50.518920] ntfs_fill_super+0x1217/0x2d40 [ 50.523794] ? snprintf+0x91/0xc0 [ 50.527403] ? vsprintf+0x20/0x20 [ 50.530838] mount_bdev+0x27b/0x340 [ 50.534446] ? load_system_files+0x6530/0x6530 [ 50.539006] ? ntfs_rl_punch_nolock+0x1ec0/0x1ec0 [ 50.543835] ntfs_mount+0x10/0x20 [ 50.548771] legacy_get_tree+0x103/0x1f0 [ 50.552904] vfs_get_tree+0x8b/0x2d0 [ 50.556703] ? capable+0x14/0x20 [ 50.560409] do_mount+0x1285/0x1b70 [ 50.564046] ? lock_downgrade+0x900/0x900 [ 50.568192] ? copy_mount_string+0x20/0x20 [ 50.572427] ? __kasan_check_write+0x14/0x20 [ 50.576996] ? _copy_from_user+0xd6/0x110 [ 50.581124] __x64_sys_mount+0x169/0x1c0 [ 50.585175] do_syscall_64+0xd0/0x630 [ 50.589044] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 50.594384] RIP: 0033:0x457dea [ 50.597641] 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 [ 50.618796] RSP: 002b:00007f8157c1dbb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 50.626765] RAX: ffffffffffffffda RBX: 0000000020000000 RCX: 0000000000457dea [ 50.634100] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f8157c1dc00 [ 50.641519] RBP: 0000000000000002 R08: 000000002007e200 R09: 0000000020000000 [ 50.649115] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 50.657242] R13: 000000000000066c R14: 00000000006fbac0 R15: 0000000000000000 [ 50.665377] [ 50.667001] Allocated by task 4424: [ 50.670711] save_stack+0x21/0x90 [ 50.674240] __kasan_kmalloc.constprop.7+0xc1/0xd0 [ 50.679159] kasan_kmalloc+0x9/0x10 [ 50.682896] __kmalloc_node_track_caller+0x4d/0x70 [ 50.687814] __kmalloc_reserve.isra.49+0x2c/0xc0 [ 50.692565] __alloc_skb+0xd7/0x570 [ 50.696169] netlink_dump+0x694/0x1270 [ 50.700176] __netlink_dump_start+0x589/0x8c0 [ 50.704715] rtnetlink_rcv_msg+0x583/0x8b0 [ 50.709106] netlink_rcv_skb+0x13a/0x3d0 [ 50.713145] rtnetlink_rcv+0x10/0x20 [ 50.716837] netlink_unicast+0x471/0x6c0 [ 50.720876] netlink_sendmsg+0x7b2/0xca0 [ 50.724917] sock_sendmsg+0xe6/0x110 [ 50.728881] __sys_sendto+0x200/0x320 [ 50.732930] __x64_sys_sendto+0xdc/0x1a0 [ 50.737101] do_syscall_64+0xd0/0x630 [ 50.740994] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 50.746174] [ 50.747808] Freed by task 4424: [ 50.751071] save_stack+0x21/0x90 [ 50.754508] __kasan_slab_free+0x11a/0x170 [ 50.758793] kasan_slab_free+0xe/0x10 [ 50.762790] kfree+0xfa/0x290 [ 50.765879] skb_free_head+0x6e/0x90 [ 50.769569] skb_release_data+0x36d/0x6a0 [ 50.773694] skb_release_all+0x3d/0x50 [ 50.777560] consume_skb+0xa3/0x290 [ 50.781177] skb_free_datagram+0x12/0xc0 [ 50.785416] netlink_recvmsg+0x5f3/0x1110 [ 50.790705] sock_recvmsg+0xf4/0x130 [ 50.795105] ____sys_recvmsg+0x1ba/0x6f0 [ 50.799150] ___sys_recvmsg+0xd7/0x140 [ 50.803036] __sys_recvmsg+0xd6/0x180 [ 50.807615] __x64_sys_recvmsg+0x73/0xb0 [ 50.811654] do_syscall_64+0xd0/0x630 [ 50.815438] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 50.821137] [ 50.822747] The buggy address belongs to the object at ffff8881c612a000 [ 50.822747] which belongs to the cache kmalloc-4k of size 4096 [ 50.835968] The buggy address is located 3381 bytes inside of [ 50.835968] 4096-byte region [ffff8881c612a000, ffff8881c612b000) [ 50.848141] The buggy address belongs to the page: [ 50.853057] page:ffffea0007184a80 refcount:1 mapcount:0 mapping:ffff8881da002000 index:0x0 compound_mapcount: 0 [ 50.863261] flags: 0x2fffc0000010200(slab|head) [ 50.868698] raw: 02fffc0000010200 ffffea0007184988 ffffea0007184e88 ffff8881da002000 [ 50.876555] raw: 0000000000000000 ffff8881c612a000 0000000100000001 0000000000000000 [ 50.884418] page dumped because: kasan: bad access detected [ 50.890117] [ 50.891740] Memory state around the buggy address: [ 50.896644] ffff8881c612ac00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 50.904126] ffff8881c612ac80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 50.911661] >ffff8881c612ad00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 50.919035] ^ [ 50.924135] ffff8881c612ad80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 50.931759] ffff8881c612ae00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 50.939661] ================================================================== [ 50.947099] Disabling lock debugging due to kernel taint [ 50.952622] Kernel panic - not syncing: panic_on_warn set ... [ 50.958525] CPU: 0 PID: 4459 Comm: syz-executor5 Tainted: G B 5.6.0-rc6-syzkaller #0 [ 50.968122] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.977467] Call Trace: [ 50.980062] dump_stack+0x12f/0x187 [ 50.983692] ? ntfs_attr_find+0x8e0/0xb00 [ 50.987826] panic+0x22a/0x4f5 [ 50.991001] ? add_taint.cold.7+0x11/0x11 [ 50.995226] ? do_raw_spin_unlock+0x54/0x260 [ 50.999740] ? do_raw_spin_unlock+0x54/0x260 [ 51.004252] ? ntfs_attr_find+0x9df/0xb00 [ 51.008655] ? ntfs_attr_find+0x9df/0xb00 [ 51.012864] end_report+0x47/0x4f [ 51.016311] __kasan_report.cold.11+0xe/0x32 [ 51.020709] ? __schedule+0x7a0/0x1900 [ 51.024600] ? ntfs_attr_find+0x9df/0xb00 [ 51.028755] kasan_report+0x12/0x20 [ 51.032371] __asan_report_load_n_noabort+0xf/0x20 [ 51.037295] ntfs_attr_find+0x9df/0xb00 [ 51.041353] ? prepare_to_wait+0x136/0x350 [ 51.045572] ntfs_attr_lookup+0x10c9/0x23c0 [ 51.049898] ? kasan_unpoison_shadow+0x35/0x50 [ 51.054482] ? __kasan_kmalloc.constprop.7+0xc1/0xd0 [ 51.059592] ? kmem_cache_alloc+0x30b/0x740 [ 51.063916] ? ntfs_attr_reinit_search_ctx+0x3a0/0x3a0 [ 51.069303] ? var_wake_function+0x150/0x150 [ 51.073715] ntfs_read_inode_mount+0x6bf/0x20c0 [ 51.078382] ntfs_fill_super+0x1217/0x2d40 [ 51.082609] ? snprintf+0x91/0xc0 [ 51.086044] ? vsprintf+0x20/0x20 [ 51.089476] mount_bdev+0x27b/0x340 [ 51.093097] ? load_system_files+0x6530/0x6530 [ 51.097668] ? ntfs_rl_punch_nolock+0x1ec0/0x1ec0 [ 51.102490] ntfs_mount+0x10/0x20 [ 51.105925] legacy_get_tree+0x103/0x1f0 [ 51.110029] vfs_get_tree+0x8b/0x2d0 [ 51.113998] ? capable+0x14/0x20 [ 51.117477] do_mount+0x1285/0x1b70 [ 51.121360] ? lock_downgrade+0x900/0x900 [ 51.125588] ? copy_mount_string+0x20/0x20 [ 51.130037] ? __kasan_check_write+0x14/0x20 [ 51.134580] ? _copy_from_user+0xd6/0x110 [ 51.138809] __x64_sys_mount+0x169/0x1c0 [ 51.142922] do_syscall_64+0xd0/0x630 [ 51.146767] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 51.152030] RIP: 0033:0x457dea [ 51.155253] 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 [ 51.174151] RSP: 002b:00007f8157c1dbb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 51.181837] RAX: ffffffffffffffda RBX: 0000000020000000 RCX: 0000000000457dea [ 51.189090] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f8157c1dc00 [ 51.196624] RBP: 0000000000000002 R08: 000000002007e200 R09: 0000000020000000 [ 51.204054] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 51.211409] R13: 000000000000066c R14: 00000000006fbac0 R15: 0000000000000000 [ 51.219437] Kernel Offset: disabled [ 51.223068] Rebooting in 86400 seconds..