CVE-2026-86847

Name	CVE-2026-86847
Description	A flaw was found in DPDK lib/vhost vhost-crypto. Write-back chain cleanup can follow an uninitialized next pointer when mapping a guest descriptor fails, causing the host vhost-crypto process to hang or crash.
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)
References	DSA-6597-1

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
	trixie (security)	24.11.8-0+deb13u1	fixed
	forky, 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	trixie	24.11.8-0+deb13u1		DSA-6597-1
dpdk	source	(unstable)	25.11.4-1

https://bugs.dpdk.org/show_bug.cgi?id=2023
https://www.openwall.com/lists/oss-security/2026/10/14/7