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CVE-2026-98417

net: xfrm: reject unrepresentable espintcp transport headers

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.112, and 2 more
None on Exploit-DB, Metasploit or GitHub

Summary

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.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • Linux Linux

    From e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 · fixed in d37a5b87577c4b4c1a1dcb000a9dff1df2cf886b; From e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 · fixed in 6c29681207bc213188afa603dff2d55e7178a341; From e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 · fixed in 4a8243fd2e21980fa3fd10c0610e9155057cebd3; From e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 · fixed in b2b84e73e0386ad0b4f9b8d3afde343e761f5275; From e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 · fixed in 327b2a457dd7d5445f7395f371f3c65de79bd5ce; From e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 · fixed in cce630c751279e974fa0bb574d80575e0cc7e8f3; From e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 · fixed in 206f396f46149dc8bc4dfd2b54b9879ba3ee1d7d; From e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 · fixed in 96f01b53c2d05e003b040892256de54a586e8529

  • Linux Linux

    5.6

  • KernelLinux

    From 5.6.0 · fixed in 5.10.271; From 5.11.0 · fixed in 5.15.222; From 5.16.0 · fixed in 6.1.189; From 6.2.0 · fixed in 6.6.158; From 6.7.0 · fixed in 6.12.112; From 6.13.0 · fixed in 6.18.54; From 6.19.0 · fixed in 7.2.8

References 8

git.kernel.org