CVE-2023-52762: virtio-blk: fix implicit overflow on virtio_max_dma_size
Vulnerability summary
CVE-2023-52762 is a medium (CVSS 5.5) Integer Overflow or Wraparound vulnerability in linux. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 15.4% of scored vulnerabilities.
Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 17 · Related 13Timeline
- 21-05-2024PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: virtio-blk: fix implicit overflow on virtio_max_dma_size The following codes have an implicit conversion from size_t to u32: (u32)max_size = (size_t)virtio_max_dma_size(vdev); This may lead overflow, Ex (size_t)4G -> (u32)0. Once virtio_max_dma_size() has a larger size than U32_MAX, use U32_MAX instead.
CVSS metrics
3 scores · 3 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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 causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu117 products
- linuxAll versions (No fix recorded) | < 5.15.0-100.110
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 5.15.0-1056.61
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ fd1068e1860e44aaaa337b516df4518d1ce98da1, < 72775cad7f572bb2501f9ea609e1d20e68f0b38b | ≥ fd1068e1860e44aaaa337b516df4518d1ce98da1, < 472bd4787406bef2e8b41ee4c74d960a06a49a48 | ≥ fd1068e1860e44aaaa337b516df4518d1ce98da1, < 017278f141141367f7d14b203e930b45b6ffffb9 | ≥ fd1068e1860e44aaaa337b516df4518d1ce98da1, < d667fe301dcbcb12d1d6494fc4b8abee2cb75d90 | ≥ fd1068e1860e44aaaa337b516df4518d1ce98da1, < fafb51a67fb883eb2dde352539df939a251851be | 5.1
- linux_kernel< 5.15.140 | ≥ 5.16, < 6.1.64 | ≥ 6.2, < 6.5.13 | ≥ 6.6, < 6.6.3
Debian1 product
- linux< 6.1.64-1 | < 6.5.13-1
3 vendors · 120 products
