CVE-2026-89551

A flaw was found in the Linux kernel's SUNRPC subsystem, specifically within the xdrbuftrim function. This vulnerability occurs when xdrbuftrim attempts to reduce the size of an XDR buffer. If the buffer's length is smaller than the amount being trimmed, an integer underflow can occur, causing th...

CVE-2026-89551

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...

EUVD-2026-76462

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...

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...

CVE-2026-89551

CVE-2026-89551 is a Linux kernel vulnerability in the SUNRPC subsystem, specifically in xdr_buf_trim(). The root cause is an unsigned integer underflow : when buf->len is smaller than the sum of the iovec lengths, the final accounting step (buf->len -= (len - trim)) wraps to near UINT_MAX. ...

PT-2026-90267

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