CVE-2026-74559
xsk: drain continuation descs after overflow in xsk_build_skb()
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 15, 2026 |
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Affected Versions
Linux / Linux
cf24f5a5feeaae34c1a34d1e04f8ac697290427a < ceb00cb87a22c42d20c39336213db2b843ca9e34 cf24f5a5feeaae34c1a34d1e04f8ac697290427a < 5e94d74e4f3baebaa083288f33b4be7ce0a34982 cf24f5a5feeaae34c1a34d1e04f8ac697290427a < bd44a6dcd4248883de90f5dad53ae80066e27096
Linux / Linux
6.6