virtio-mmio: don't break lifecycle of vm_dev (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.15 % · percentile 4 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Analyzed
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.
Weaknesses (CWE)
- CWE-416 — Use After Free
References
- https://git.kernel.org/stable/c/97a2d55ead76358245b446efd87818e919196d7a
- https://git.kernel.org/stable/c/b788ad3b2468512339c05f23692e36860264e674
- https://git.kernel.org/stable/c/3ff54d904fafabd0912796785e53cce4e69ca123
- https://git.kernel.org/stable/c/5b7d5c2dd664eb8b9a06ecbc06e28d39359c422e
- https://git.kernel.org/stable/c/af5818c35173e096085c6ae2e3aac605d3d15e41
- https://git.kernel.org/stable/c/2dcb368fe5a8eee498ca75c93a18ce2f3b0d6a8e
- https://git.kernel.org/stable/c/55c91fedd03d7b9cf0c5199b2eb12b9b8e95281a
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2025-32745
- GCVE · GCVE-0-2023-53515
CERT-FR advisories
- CERTFR-2025-AVI-1032 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-1009 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0921 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0895 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.15.1 < 4.19.293cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.20 < 5.4.255cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.5 < 5.10.192cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.11 < 5.15.128cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.16 < 6.1.47cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.2 < 6.4.12cpe:2.3:o:linux:linux_kernel:4.15:-:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:4.15:rc3:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:4.15:rc4:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:4.15:rc5:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:4.15:rc6:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:4.15:rc7:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:4.15:rc8:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:4.15:rc9:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.5:rc1:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.5:rc2:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.5:rc3:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.5:rc4:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.5:rc5:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.5:rc6:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 7eb781b1bbb7136fe78fb8c28c1c223c61fa32b5 < 97a2d55ead76358245b446efd87818e919196d7a ; affected 7eb781b1bbb7136fe78fb8c28c1c223c61fa32b5 < b788ad3b2468512339c05f23692e36860264e674 ; affected 7eb781b1bbb7136fe78fb8c28c1c223c61fa32b5 < 3ff54d904fafabd0912796785e53cce4e69ca123 ; affected 7eb781b1bbb7136fe78fb8c28c1c223c61fa32b5 < 5b7d5c2dd664eb8b9a06ecbc06e28d39359c422e ; affected 7eb781b1bbb7136fe78fb8c28c1c223c61fa32b5 < af5818c35173e096085c6ae2e3aac605d3d15e41 ; affected 7eb781b1bbb7136fe78fb8c28c1c223c61fa32b5 < 2dcb368fe5a8eee498ca75c93a18ce2f3b0d6a8e |
| Linux · Linux | affected 4.15 ; unaffected 0 < 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.* |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |