| commit | 149118d89355fb0e1a898f47977f8ae9be8e14e7 | [log] [tgz] |
|---|---|---|
| author | Thomas Graf <tgraf@suug.ch> | Tue Jan 06 01:04:21 2015 +0100 |
| committer | David S. Miller <davem@davemloft.net> | Mon Jan 05 22:38:22 2015 -0500 |
| tree | ce3d14e96bbebea22427f2d0d61ee52d840d007e | |
| parent | a515abd7771c991dee302d1e22e695d2a32daa3e [diff] |
netlink: Warn on unordered or illegal nla_nest_cancel() or nlmsg_cancel() Calling nla_nest_cancel() in a different order as the nesting was built up can lead to negative offsets being calculated which results in skb_trim() being called with an underflowed unsigned int. Warn if mark < skb->data as it's definitely a bug. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>