CVE-2026-89551 SUNRPC: xdr_buf_trim: clamp buf->len to avoid underflow

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: xdrbuftrim: clamp buf-len to avoid underflow xdrbuftrim trims len bytes from the tail of an xdrbuf by walking the tail, pages, and head iovecs. Each per-section step uses mint so it never removes more bytes than that...

PT-2026-90254

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Reject krb5 v2 wrap tokens with oversized ec field gss krb5 unwrap v2 sets buf-len to a logical length, which can be much smaller than head0.iov len the allocated receive-page capacity. It then calls xdr buf trim with a...