CVE-2026-98417
Unknown
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.
SeverityUnknown
CVSS—
Exploit probability—
Product
Linux
PublishedOct 14, 2026
First seenOct 14, 2026
How to fix
Update
- Linux Linuxd37a5b87577c4b4c1a1dcb000a9dff1df2cf886b, 6c29681207bc213188afa603dff2d55e7178a341, 4a8243fd2e21980fa3fd10c0610e9155057cebd3, b2b84e73e0386ad0b4f9b8d3afde343e761f5275, 327b2a457dd7d5445f7395f371f3c65de79bd5ce, cce630c751279e974fa0bb574d80575e0cc7e8f3, 206f396f46149dc8bc4dfd2b54b9879ba3ee1d7d, 96f01b53c2d05e003b040892256de54a586e8529 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 ≤ v < d37a5b87577c4b4c1a1dcb000a9dff1df2cf886b, e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 ≤ v < 6c29681207bc213188afa603dff2d55e7178a341, e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 ≤ v < 4a8243fd2e21980fa3fd10c0610e9155057cebd3, e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 ≤ v < b2b84e73e0386ad0b4f9b8d3afde343e761f5275, e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 ≤ v < 327b2a457dd7d5445f7395f371f3c65de79bd5ce, e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 ≤ v < cce630c751279e974fa0bb574d80575e0cc7e8f3, e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 ≤ v < 206f396f46149dc8bc4dfd2b54b9879ba3ee1d7d, e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 ≤ v < 96f01b53c2d05e003b040892256de54a586e8529, 5.6 | d37a5b87577c4b4c1a1dcb000a9dff1df2cf886b, 6c29681207bc213188afa603dff2d55e7178a341, 4a8243fd2e21980fa3fd10c0610e9155057cebd3, b2b84e73e0386ad0b4f9b8d3afde343e761f5275, 327b2a457dd7d5445f7395f371f3c65de79bd5ce, cce630c751279e974fa0bb574d80575e0cc7e8f3, 206f396f46149dc8bc4dfd2b54b9879ba3ee1d7d, 96f01b53c2d05e003b040892256de54a586e8529 |
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