netlink: 'syz-executor5': attribute type 17 has an invalid length. kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access netlink: 'syz-executor5': attribute type 17 has an invalid length. general protection fault: 0000 [#1] SMP KASAN CPU: 1 PID: 7136 Comm: syz-executor3 Not tainted 4.18.0-rc8+ #178 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:smc_ioctl+0x880/0x1250 net/smc/af_smc.c:1737 Code: 48 c1 ea 03 80 3c 02 00 0f 85 e4 07 00 00 4c 8b ab 98 04 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d 7d 20 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e c2 07 00 00 4c 8d bb f8 04 00 netlink: 21 bytes leftover after parsing attributes in process `syz-executor4'. RSP: 0000:ffff88019de775c8 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff8801aa66f180 RCX: ffffc90003a22000 RDX: 0000000000000004 RSI: ffffffff867e1f52 RDI: 0000000000000020 RBP: ffff88019de779b0 R08: ffff88019de3e6c0 R09: 0000000000000000 R10: ffffed00354cde41 R11: ffff8801aa66f20b R12: 1ffff10033bceebd R13: 0000000000000000 R14: 0000000020000040 R15: 0000000000000001 FS: 00007fe9ea087700(0000) GS:ffff8801db100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000014efc14 CR3: 00000001a9c35000 CR4: 00000000001406e0 Call Trace: sock_do_ioctl+0xe4/0x3e0 net/socket.c:968 sock_ioctl+0x30d/0x680 net/socket.c:1092 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x1de/0x1720 fs/ioctl.c:684 ksys_ioctl+0xa9/0xd0 fs/ioctl.c:701 __do_sys_ioctl fs/ioctl.c:708 [inline] __se_sys_ioctl fs/ioctl.c:706 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:706 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457089 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:00007fe9ea086c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fe9ea0876d4 RCX: 0000000000457089 RDX: 0000000020000040 RSI: 0000000000005411 RDI: 0000000000000003 RBP: 0000000000930140 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004d1ab8 R14: 00000000004c7501 R15: 0000000000000001 Modules linked in: Dumping ftrace buffer: (ftrace buffer empty) ---[ end trace a2eea8d4057e9ea4 ]--- RIP: 0010:smc_ioctl+0x880/0x1250 net/smc/af_smc.c:1737 Code: 48 c1 ea 03 80 3c 02 00 0f 85 e4 07 00 00 4c 8b ab 98 04 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d 7d 20 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e c2 07 00 00 4c 8d bb f8 04 00 RSP: 0000:ffff88019de775c8 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff8801aa66f180 RCX: ffffc90003a22000 RDX: 0000000000000004 RSI: ffffffff867e1f52 RDI: 0000000000000020 RBP: ffff88019de779b0 R08: ffff88019de3e6c0 R09: 0000000000000000 R10: ffffed00354cde41 R11: ffff8801aa66f20b R12: 1ffff10033bceebd netlink: 21 bytes leftover after parsing attributes in process `syz-executor4'. R13: 0000000000000000 R14: 0000000020000040 R15: 0000000000000001 FS: 00007fe9ea087700(0000) GS:ffff8801db100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000014efc14 CR3: 00000001a9c35000 CR4: 00000000001406e0