CVE-2023-52664: net: atlantic: eliminate double free in error handling logic
Vulnerability summary
CVE-2023-52664 is a high (CVSS 7.8) Double Free vulnerability in linux. EPSS estimates a 0.27% chance of exploitation in the next 30 days, higher than 19.9% of scored vulnerabilities.
Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 44 · Related 42Timeline
- 17-05-2024PublishedVulnerability first disclosed.
- 05-08-2026Last modifiedVulnerability information updated.
Description
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 metrics
4 scores · 4 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- NVDNIST7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.27%
Chance of exploitation in the next 30 days
Percentile
20%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.27% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu115 products
- linux< 4.15.0-237.249 | < 5.4.0-215.235 | < 5.15.0-139.149
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 4.15.0-1180.193 | < 5.4.0-1145.155 | < 5.15.0-1083.90
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 018423e90bee8978105eaaa265a26e70637f9f1e, < 0edb3ae8bfa31cd544b0c195bdec00e036002b5d | ≥ 018423e90bee8978105eaaa265a26e70637f9f1e, < c11a870a73a3bc4cc7df6dd877a45b181795fcbf | ≥ 018423e90bee8978105eaaa265a26e70637f9f1e, < d1fde4a7e1dcc4d49cce285107a7a43c3030878d | ≥ 018423e90bee8978105eaaa265a26e70637f9f1e, < b3cb7a830a24527877b0bc900b9bd74a96aea928 | 4.11
- linux_kernel< 6.1.77 | ≥ 6.2, < 6.6.16 | ≥ 6.7, < 6.7.4
Debian1 product
- linux< 6.1.82-1 | < 6.7.7-1
3 vendors · 118 products
