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Review reviewHigh

CVE-2023-52664

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: net: atlantic: eliminate double free in error handling logic Driver has a logic leak in ring data allocation/free, where aq_ring_free could be called multiple times on same ring, if system is under stress and got memory allocation error. Ring pointer was used as an indicator of failure, but this is not correct since only ring data is allocated/deallocated. Ring itself is an array member. Changing ring allocation functions to return error code directly. This simplifies error handling and eliminates aq_ring_free on higher layer.

CVSS
7.8
EPSS
-
- percentile
CISA KEV
Not listed
Published
2024.05.17
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability-
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: net: atlantic: eliminate double free in error handling logic Driver has a logic leak in ring data allocation/free, where aq_ring_free could be called multiple times on same ring, if system is under stress and got memory allocation error. Ring pointer was used as an indicator of failure, but this is not correct since only ring data is allocated/deallocated. Ring itself is an array member. Changing ring allocation functions to return error code directly. This simplifies error handling and eliminates aq_ring_free on higher layer.

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= 018423e90bee8978105eaaa265a26e70637f9f1e < 0edb3ae8bfa31cd544b0c195bdec00e036002b5d, >= 018423e90bee8978105eaaa265a26e70637f9f1e < c11a870a73a3bc4cc7df6dd877a45b181795fcbf, >= 018423e90bee8978105eaaa265a26e70637f9f1e < d1fde4a7e1dcc4d49cce285107a7a43c3030878d, >= 018423e90bee8978105eaaa265a26e70637f9f1e < b3cb7a830a24527877b0bc900b9bd74a96aea928, >= 4.11, < 6.1.77, >= 6.2 < 6.6.16, >= 6.7 < 6.7.4
Fixed versions
6.1.77, 6.6.16, 6.7.4

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-415