CVE-2026-86856

Name	CVE-2026-86856
Description	A flaw was found in the DPDK nfp vDPA driver. Stack and heap buffers sized for a single queue pair can be overflowed when more virtqueues are configured, leading to a host crash or memory corruption.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
dpdk (PTS)	bookworm	22.11.11-0+deb12u1	vulnerable
	bookworm (security)	22.11.7-1~deb12u1	vulnerable
	trixie	24.11.4-0+deb13u1	vulnerable
	forky	25.11.3-1	vulnerable
	sid	25.11.4-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
dpdk	source	(unstable)	25.11.4-1

https://bugs.dpdk.org/show_bug.cgi?id=2027
https://www.openwall.com/lists/oss-security/2026/10/14/7