CVE-2026-74559
- Source
- https://cve.org/CVERecord?id=CVE-2026-74559
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74559.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-74559
- Downstream
- Published
- 2026-08-15T12:28:03Z
- Modified
- 2026-08-18T03:30:57Z
- Summary
- xsk: drain continuation descs after overflow in xsk_build_skb()
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
xsk: drain continuation descs after overflow in xsk_build_skb()
Fix generic xmit path multi-buffer logic when packets are either too big (count of descriptors exceed MAX_SKB_FRAGS) or an invalid descriptor is included in fragmented packet. Introduce xdp_sock::drain_cont and act upon this flag - when it is set, keep on consuming descriptors from AF_XDP Tx ring and put them directly onto Cq. Previously these descriptors were silently lost and could never be reached again.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74559.json" }- References
-
- https://git.kernel.org/stable/c/5e94d74e4f3baebaa083288f33b4be7ce0a34982
- https://git.kernel.org/stable/c/bd44a6dcd4248883de90f5dad53ae80066e27096
- https://git.kernel.org/stable/c/ceb00cb87a22c42d20c39336213db2b843ca9e34
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74559.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-74559
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git