CVE-2023-53515virtio-mmio: don't break lifecycle of vm_dev
- 7.8HighCVSS base score
- 0.15%Exploitation in 30 daysEPSS · top 95% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: virtio-mmio: don't break lifecycle of vm_dev vm_dev has a separate lifecycle because it has a 'struct device' embedded. Thus, having a release callback for it is correct. Allocating the vm_dev struct with devres totally breaks this protection, though. Instead of waiting for the vm_dev release callback, the memory is freed when the platform_device is removed. Resulting in a use-after-free when finally the callback is to be called. To easily see the problem, compile the kernel with CONFIG_DEBUG_KOBJECT_RELEASE and unbind with sysfs. The fix is easy, don't use devres in this case. Found during my research about object lifetime problems.
Timeline
ID reserved
By Linux
Published
- 13 months later
· 13 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.15% · top 95% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected 7eb781b1bbb7136fe78fb8c28c1c223c61fa32b5 – < 97a2d55ead76358245b446efd87818e919196d7a
- affected 7eb781b1bbb7136fe78fb8c28c1c223c61fa32b5 – < b788ad3b2468512339c05f23692e36860264e674
- affected 7eb781b1bbb7136fe78fb8c28c1c223c61fa32b5 – < 3ff54d904fafabd0912796785e53cce4e69ca123
- affected 7eb781b1bbb7136fe78fb8c28c1c223c61fa32b5 – < 5b7d5c2dd664eb8b9a06ecbc06e28d39359c422e
- affected 7eb781b1bbb7136fe78fb8c28c1c223c61fa32b5 – < af5818c35173e096085c6ae2e3aac605d3d15e41
- affected 7eb781b1bbb7136fe78fb8c28c1c223c61fa32b5 – < 2dcb368fe5a8eee498ca75c93a18ce2f3b0d6a8e
- affected 7eb781b1bbb7136fe78fb8c28c1c223c61fa32b5 – < 55c91fedd03d7b9cf0c5199b2eb12b9b8e95281a
- affected 4.15
- unaffected < 4.15
- unaffected 4.19.293 – ≤ 4.19.*
- unaffected 5.4.255 – ≤ 5.4.*
- unaffected 5.10.192 – ≤ 5.10.*
- unaffected 5.15.128 – ≤ 5.15.*
- unaffected 6.1.47 – ≤ 6.1.*
- unaffected 6.4.12 – ≤ 6.4.*
- unaffected 6.5 – ≤ *
References
References7
- https://git.kernel.org/stable/c/97a2d55ead76358245b446efd87818e919196d7a (opens in a new tab)
- https://git.kernel.org/stable/c/b788ad3b2468512339c05f23692e36860264e674 (opens in a new tab)
- https://git.kernel.org/stable/c/3ff54d904fafabd0912796785e53cce4e69ca123 (opens in a new tab)
- https://git.kernel.org/stable/c/5b7d5c2dd664eb8b9a06ecbc06e28d39359c422e (opens in a new tab)
- https://git.kernel.org/stable/c/af5818c35173e096085c6ae2e3aac605d3d15e41 (opens in a new tab)
- https://git.kernel.org/stable/c/2dcb368fe5a8eee498ca75c93a18ce2f3b0d6a8e (opens in a new tab)
- https://git.kernel.org/stable/c/55c91fedd03d7b9cf0c5199b2eb12b9b8e95281a (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2025-32745 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2023-53515)Record last updated .