fou: Don't allow 0 for FOU_ATTR_IPPROTO.
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.1%
exploitation probability
0.1%top 97% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
fou: Don't allow 0 for FOU_ATTR_IPPROTO.
fou_udp_recv() has the same problem mentioned in the previous
patch.
If FOU_ATTR_IPPROTO is set to 0, skb is not freed by
fou_udp_recv() nor "resubmit"-ted in ip_protocol_deliver_rcu().
Let's forbid 0 for FOU_ATTR_IPPROTO.
Affected products
Linux · LinuxReferences
https://cert-portal.siemens.com/productcert/html/ssa-019113.htmlhttps://git.kernel.org/stable/c/1cc98b8887cabb1808d2f4a37cd10a7be7574771https://git.kernel.org/stable/c/611ef4bd9c73d9e6d87bed57a635ff1fdd8c91eahttps://git.kernel.org/stable/c/6e983789b7588ee59cbf303583546c043bad8e19https://git.kernel.org/stable/c/7a9bc9e3f42391e4c187e099263cf7a1c4b69ff5https://git.kernel.org/stable/c/9b75dff8446ec871030d8daf5a69e74f5fe8b956https://git.kernel.org/stable/c/b7db31a52c3862a1a32202a273a4c32e7f5f4823https://git.kernel.org/stable/c/c7498f9bc390479ccfad7c7f2332237ff4945b03