Answer in brief
CVE-2026-74559 records a Unknown severity vulnerability in xsk: drain continuation descs after overflow in xsk_build_skb(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=cf24f5a5feeaae34c1a34d1e04f8ac697290427a <ceb00cb87a22c42d20c39336213db2b843ca9e34 || >=cf24f5a5feeaae34c1a34d1e04f8ac697290427a <5e94d74e4f3baebaa083288f33b4be7ce0a34982 || >=cf24f5a5feeaae34c1a34d1e04f8ac697290427a <bd44a6dcd4248883de90f5dad53ae80066e27096 | ceb00cb87a22c42d20c39336213db2b843ca9e34, 5e94d74e4f3baebaa083288f33b4be7ce0a34982, bd44a6dcd4248883de90f5dad53ae80066e27096 |
| Linux/Linuxgeneric | 6.6 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
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.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-74559 records a Unknown severity vulnerability in xsk: drain continuation descs after overflow in xsk_build_skb(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=cf24f5a5feeaae34c1a34d1e04f8ac697290427a <ceb00cb87a22c42d20c39336213db2b843ca9e34 || >=cf24f5a5feeaae34c1a34d1e04f8ac697290427a <5e94d74e4f3baebaa083288f33b4be7ce0a34982 || >=cf24f5a5feeaae34c1a34d1e04f8ac697290427a <bd44a6dcd4248883de90f5dad53ae80066e27096 | ceb00cb87a22c42d20c39336213db2b843ca9e34, 5e94d74e4f3baebaa083288f33b4be7ce0a34982, bd44a6dcd4248883de90f5dad53ae80066e27096 |
| Linux/Linuxgeneric | 6.6 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
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.
Quoted source text, attributed separately from HOL analysis.