Answer in brief
CVE-2026-98417 records a Unknown severity vulnerability in net: xfrm: reject unrepresentable espintcp transport headers. 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 | >=e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 <d37a5b87577c4b4c1a1dcb000a9dff1df2cf886b || >=e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 <6c29681207bc213188afa603dff2d55e7178a341 || >=e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 <4a8243fd2e21980fa3fd10c0610e9155057cebd3 || >=e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 <b2b84e73e0386ad0b4f9b8d3afde343e761f5275 || >=e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 <327b2a457dd7d5445f7395f371f3c65de79bd5ce || >=e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 <cce630c751279e974fa0bb574d80575e0cc7e8f3 || >=e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 <206f396f46149dc8bc4dfd2b54b9879ba3ee1d7d || >=e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 <96f01b53c2d05e003b040892256de54a586e8529 | d37a5b87577c4b4c1a1dcb000a9dff1df2cf886b, 6c29681207bc213188afa603dff2d55e7178a341, 4a8243fd2e21980fa3fd10c0610e9155057cebd3, b2b84e73e0386ad0b4f9b8d3afde343e761f5275, 327b2a457dd7d5445f7395f371f3c65de79bd5ce, cce630c751279e974fa0bb574d80575e0cc7e8f3, 206f396f46149dc8bc4dfd2b54b9879ba3ee1d7d, 96f01b53c2d05e003b040892256de54a586e8529 |
| Linux/Linuxgeneric | 5.6 | Not reported |
Published upstream
Oct 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 14, 2026
In the Linux kernel, the following vulnerability has been resolved: net: xfrm: reject unrepresentable espintcp transport headers ESP-in-TCP can hand xfrm packets whose transport header offset no longer fits after the stream parser trims the TCP envelope. The plain transport header reset truncates that offset and triggers the skb warning path. Use the careful transport-header helper and drop the skb through the existing XFRM error path when the offset cannot be represented.
Quoted source text, attributed separately from HOL analysis.