CVE-2026-31668

*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> seg6: separate dst_cache for input and output paths in seg6 lwtunnel<br /> <br /> The seg6 lwtunnel uses a single dst_cache per encap route, shared<br /> between seg6_input_core() and seg6_output_core(). These two paths<br /> can perform the post-encap SID lookup in different routing contexts<br /> (e.g., ip rules matching on the ingress interface, or VRF table<br /> separation). Whichever path runs first populates the cache, and the<br /> other reuses it blindly, bypassing its own lookup.<br /> <br /> Fix this by splitting the cache into cache_input and cache_output,<br /> so each path maintains its own cached dst independently.