netlink: 3 bytes leftover after parsing attributes in process `syzkaller571099'.
netlink: 3 bytes leftover after parsing attributes in process `syzkaller571099'.
netlink: 3 bytes leftover after parsing attributes in process `syzkaller571099'.
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 3144 Comm: syzkaller571099 Not tainted 4.15.0-rc4+ #139
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__netlink_ns_capable+0x8b/0x120 net/netlink/af_netlink.c:835
RSP: 0018:ffff8801c8d9ef10 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff84344470
RDX: 000000000000007b RSI: ffffffff85f10980 RDI: 00000000000003d8
RBP: ffff8801c8d9ef28 R08: 0000000000000000 R09: 1ffff100391b3dc8
R10: 0000000000000000 R11: 0000000000000001 R12: ffffffff85f10980
R13: 000000000000000c R14: 0000000000000004 R15: 0000000000000011
FS:  0000000000000000(0000) GS:ffff8801db400000(0063) knlGS:0000000008d30840
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000020151000 CR3: 00000001cb9ff005 CR4: 00000000001606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 netlink_ns_capable+0x26/0x30 net/netlink/af_netlink.c:853
 get_target_net+0x9d/0x120 net/core/rtnetlink.c:1695
 rtnl_dump_ifinfo+0x2da/0xec0 net/core/rtnetlink.c:1736
 netlink_dump+0x48c/0xce0 net/netlink/af_netlink.c:2189
 __netlink_dump_start+0x4f0/0x6d0 net/netlink/af_netlink.c:2286
 netlink_dump_start include/linux/netlink.h:214 [inline]
 rtnetlink_rcv_msg+0x977/0x1020 net/core/rtnetlink.c:4381
 netlink_rcv_skb+0x216/0x440 net/netlink/af_netlink.c:2408
 rtnetlink_rcv+0x1c/0x20 net/core/rtnetlink.c:4423
 netlink_unicast_kernel net/netlink/af_netlink.c:1275 [inline]
 netlink_unicast+0x4e8/0x6f0 net/netlink/af_netlink.c:1301
 netlink_sendmsg+0xa4a/0xe60 net/netlink/af_netlink.c:1864
 sock_sendmsg_nosec net/socket.c:636 [inline]
 sock_sendmsg+0xca/0x110 net/socket.c:646
 sock_write_iter+0x31a/0x5d0 net/socket.c:915
 call_write_iter include/linux/fs.h:1772 [inline]
 new_sync_write fs/read_write.c:469 [inline]
 __vfs_write+0x684/0x970 fs/read_write.c:482
 vfs_write+0x189/0x510 fs/read_write.c:544
 SYSC_write fs/read_write.c:589 [inline]
 SyS_write+0xef/0x220 fs/read_write.c:581
 do_syscall_32_irqs_on arch/x86/entry/common.c:327 [inline]
 do_fast_syscall_32+0x3ee/0xf9d arch/x86/entry/common.c:389
 entry_SYSENTER_compat+0x54/0x63 arch/x86/entry/entry_64_compat.S:125
RIP: 0023:0xf7f30c79
RSP: 002b:00000000ffc501cc EFLAGS: 00000203 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000020151000
RDX: 000000000000001f RSI: 0000000000000167 RDI: 0000000000000010
RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Code: fa 48 c1 ea 03 80 3c 02 00 0f 85 95 00 00 00 48 8b 5b 18 48 b8 00 00 00 00 00 fc ff df 48 8d bb d8 03 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 80 00 00 00 48 8b 9b d8 03 00 00 48 b8 00 00 
RIP: __netlink_ns_capable+0x8b/0x120 net/netlink/af_netlink.c:835 RSP: ffff8801c8d9ef10
---[ end trace c42ccf7e6c664428 ]---