CVE-2023-52795: vhost-vdpa: fix use after free in vhost_vdpa_probe()
Vulnerability summary
CVE-2023-52795 is a high (CVSS 7.8) Double Free vulnerability in linux. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 15.3% 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 8 · Related 8Timeline
- 21-05-2024PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: vhost-vdpa: fix use after free in vhost_vdpa_probe() The put_device() calls vhost_vdpa_release_dev() which calls ida_simple_remove() and frees "v". So this call to ida_simple_remove() is a use after free and a double free.
CVSS metrics
3 scores · 3 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
EPSS trend
Probability
0.24%
Chance of exploitation in the next 30 days
Percentile
15%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.24% 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 cause- CWE-415Double FreeThe product calls free() twice on the same memory address.
- CWE-416Use After FreeThe product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
Affected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu75 products
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
- linux-aws-5.13All versions (No fix recorded)
- linux-aws-5.19All versions (No fix recorded)
Linux2 products
- linux≥ ebe6a354fa7e0a7d5b581da31ad031b19d8693f9, < c0f8b8fb7df9d1a38652eb5aa817afccd3c56111 | ≥ ebe6a354fa7e0a7d5b581da31ad031b19d8693f9, < ae8ea4e200675a940c365b496ef8e3fb4123601c | ≥ ebe6a354fa7e0a7d5b581da31ad031b19d8693f9, < bf04132cd64ccde4e9e9765d489c83fe83c09b7f | ≥ ebe6a354fa7e0a7d5b581da31ad031b19d8693f9, < e07754e0a1ea2d63fb29574253d1fd7405607343 | 6.0
- linux_kernel≥ 6.0, < 6.1.64 | ≥ 6.2, < 6.5.13 | ≥ 6.6, < 6.6.3 | 6.7:rc1
Debian1 product
- linux< 6.1.64-1 | < 6.6.8-1
3 vendors · 78 products
