netlink: 8 bytes leftover after parsing attributes in process `syz-executor0'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor0'. list_del corruption, ffff880195620068->next is LIST_POISON1 (dead000000000100) ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:47! invalid opcode: 0000 [#1] SMP KASAN CPU: 1 PID: 12947 Comm: syz-executor5 Not tainted 4.18.0-rc7-next-20180802+ #30 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__list_del_entry_valid.cold.1+0x26/0x58 lib/list_debug.c:45 Code: fe fd 0f 0b 4c 89 e2 48 89 de 48 c7 c7 60 9b 3a 87 e8 3a 9b fe fd 0f 0b 4c 89 ea 48 89 de 48 c7 c7 00 9b 3a 87 e8 26 9b fe fd <0f> 0b 48 89 de 48 c7 c7 20 9c 3a 87 e8 15 9b fe fd 0f 0b 48 89 de RSP: 0018:ffff88018efcf210 EFLAGS: 00010286 RAX: 000000000000004e RBX: ffff880195620068 RCX: ffffc90004a12000 RDX: 0000000000000000 RSI: ffffffff816366f1 RDI: 0000000000000001 RBP: ffff88018efcf228 R08: ffff8801d92845c0 R09: ffffed003b624fd0 R10: ffffed003b624fd0 R11: ffff8801db127e87 R12: dead000000000200 R13: dead000000000100 R14: ffff880194ed4200 R15: dffffc0000000000 FS: 00007f47611df700(0000) GS:ffff8801db100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd88d8c448 CR3: 00000001ac341000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __list_del_entry include/linux/list.h:117 [inline] list_del include/linux/list.h:125 [inline] p9_fd_cancelled+0x80/0x2f0 net/9p/trans_fd.c:712 p9_client_flush+0x255/0x2a0 net/9p/client.c:691 p9_client_rpc+0x1296/0x1480 net/9p/client.c:800 p9_client_version net/9p/client.c:971 [inline] p9_client_create+0xbbf/0x1587 net/9p/client.c:1058 v9fs_session_init+0x21a/0x1a80 fs/9p/v9fs.c:400 v9fs_mount+0x7c/0x900 fs/9p/vfs_super.c:135 legacy_get_tree+0x131/0x460 fs/fs_context.c:729 vfs_get_tree+0x1cb/0x5c0 fs/super.c:1743 do_new_mount fs/namespace.c:2603 [inline] do_mount+0x6f2/0x1e20 fs/namespace.c:2927 ksys_mount+0x12d/0x140 fs/namespace.c:3143 __do_sys_mount fs/namespace.c:3157 [inline] __se_sys_mount fs/namespace.c:3154 [inline] __x64_sys_mount+0xbe/0x150 fs/namespace.c:3154 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x456b29 Code: fd b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f47611dec78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f47611df6d4 RCX: 0000000000456b29 RDX: 0000000020000080 RSI: 00000000200000c0 RDI: 0000000000000000 RBP: 00000000009300a0 R08: 0000000020000380 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004d1c10 R14: 00000000004c7340 R15: 0000000000000000 Modules linked in: Dumping ftrace buffer: (ftrace buffer empty) ---[ end trace 950317ffe1a1f495 ]--- RIP: 0010:__list_del_entry_valid.cold.1+0x26/0x58 lib/list_debug.c:45 Code: fe fd 0f 0b 4c 89 e2 48 89 de 48 c7 c7 60 9b 3a 87 e8 3a 9b fe fd 0f 0b 4c 89 ea 48 89 de 48 c7 c7 00 9b 3a 87 e8 26 9b fe fd <0f> 0b 48 89 de 48 c7 c7 20 9c 3a 87 e8 15 9b fe fd 0f 0b 48 89 de RSP: 0018:ffff88018efcf210 EFLAGS: 00010286 RAX: 000000000000004e RBX: ffff880195620068 RCX: ffffc90004a12000 RDX: 0000000000000000 RSI: ffffffff816366f1 RDI: 0000000000000001 RBP: ffff88018efcf228 R08: ffff8801d92845c0 R09: ffffed003b624fd0 R10: ffffed003b624fd0 R11: ffff8801db127e87 R12: dead000000000200 R13: dead000000000100 R14: ffff880194ed4200 R15: dffffc0000000000 FS: 00007f47611df700(0000) GS:ffff8801db100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd88d8c448 CR3: 00000001ac341000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400