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CVE-2024-40999

net: ena: Add validation for completion descriptors consistency

Published
Last modified
published
Not listed in CISA KEV
Unclear
Fix
Fixed in 6.6.160, 6.9.7
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

The vulnerability affects the Linux kernel's driver for Amazon's Elastic Network Adapter (ENA), which handles network packet reception. An invalid or inconsistent completion descriptor could cause received multi-buffer packets to be corrupted, and the driver responds by resetting the device.

Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.

Read the original description

In the Linux kernel, the following vulnerability has been resolved: net: ena: Add validation for completion descriptors consistency Validate that `first` flag is set only for the first descriptor in multi-buffer packets. In case of an invalid descriptor, a reset will occur. A new reset reason for RX data corruption has been added.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • Linux Linux

    Version range not reported

  • Linux Linux

    4.9

  • KernelLinux

    From 4.9.0 · fixed in 6.6.160; From 6.7.0 · fixed in 6.9.7

References 4

git.kernel.org