CVE-2023-52667: net/mlx5e: fix a potential double-free in fs_any_create_groups
Vulnerability summary
CVE-2023-52667 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 19.1% 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 23 · Related 18Timeline
- 17-05-2024PublishedVulnerability first disclosed.
- 05-08-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: fix a potential double-free in fs_any_create_groups When kcalloc() for ft->g succeeds but kvzalloc() for in fails, fs_any_create_groups() will free ft->g. However, its caller fs_any_create_table() will free ft->g again through calling mlx5e_destroy_flow_table(), which will lead to a double-free. Fix this by setting ft->g to NULL in fs_any_create_groups().
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
19%
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.
Ubuntu104 products
- linux< 5.15.0-106.116
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 5.15.0-1061.67
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 0f575c20bf0686caf3d82d6c626c2e1e4a4c36e6, < 72a729868592752b5a294d27453da264106983b1 | ≥ 0f575c20bf0686caf3d82d6c626c2e1e4a4c36e6, < b2fa86b2aceb4bc9ada51cea90f61546d7512cbe | ≥ 0f575c20bf0686caf3d82d6c626c2e1e4a4c36e6, < 2897c981ee63e1be5e530b1042484626a10b26d8 | ≥ 0f575c20bf0686caf3d82d6c626c2e1e4a4c36e6, < 65a4ade8a6d205979292e88beeb6a626ddbd4779 | ≥ 0f575c20bf0686caf3d82d6c626c2e1e4a4c36e6, < aef855df7e1bbd5aa4484851561211500b22707e | 5.13
- linux_kernel≥ 5.13, < 5.15.149 | ≥ 5.16, < 6.1.76 | ≥ 6.2, < 6.6.15 | ≥ 6.7, < 6.7.3 | 6.8:rc1
Debian1 product
- linux< 6.1.76-1 | < 6.6.15-1
3 vendors · 107 products
