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CVE-2026-98417

Unknown

Last modified

CVE-2026-98417 is a vulnerability of currently unknown severity. 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..

Description

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.

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= e27cca96cd68fa2c6814c90f9a1cfd36bb68c593, < d37a5b87577c4b4c1a1dcb000a9dff1df2cf886b; >= e27cca96cd68fa2c6814c90f9a1cfd36bb68c593, < 6c29681207bc213188afa603dff2d55e7178a341; >= e27cca96cd68fa2c6814c90f9a1cfd36bb68c593, < 4a8243fd2e21980fa3fd10c0610e9155057cebd3; >= e27cca96cd68fa2c6814c90f9a1cfd36bb68c593, < b2b84e73e0386ad0b4f9b8d3afde343e761f5275; >= e27cca96cd68fa2c6814c90f9a1cfd36bb68c593, < 327b2a457dd7d5445f7395f371f3c65de79bd5ce; >= e27cca96cd68fa2c6814c90f9a1cfd36bb68c593, < cce630c751279e974fa0bb574d80575e0cc7e8f3; >= e27cca96cd68fa2c6814c90f9a1cfd36bb68c593, < 206f396f46149dc8bc4dfd2b54b9879ba3ee1d7d; >= e27cca96cd68fa2c6814c90f9a1cfd36bb68c593, < 96f01b53c2d05e003b040892256de54a586e8529
LinuxLinux5.6

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-98417?
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.
How severe is CVE-2026-98417?
Severity scoring for CVE-2026-98417 is pending analysis.
How do I fix CVE-2026-98417?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST