CVE-2026-100236

NameCVE-2026-100236
DescriptionA flaw was found in the DPDK GSO library. When software GSO copies packet headers into a new mbuf, it does not check that the header fits in the source first segment or in the destination buffer, and a header longer than the configured GSO segment size can underflow the payload-size calculation. A remote or guest-supplied packet processed with software GSO can trigger an out-of-bounds read or write.
SourceCVE (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 PackageReleaseVersionStatus
dpdk (PTS)bookworm22.11.11-0+deb12u1vulnerable
bookworm (security)22.11.7-1~deb12u1vulnerable
trixie24.11.4-0+deb13u1vulnerable
forky25.11.3-1vulnerable
sid25.11.4-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
dpdksource(unstable)25.11.4-1

Notes

https://bugs.dpdk.org/show_bug.cgi?id=2047
https://www.openwall.com/lists/oss-security/2026/10/14/7

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