CVE-2022-48861
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-48861
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-48861.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2022-48861
- Downstream
- Related
- Published
- 2024-07-16T13:15:13Z
- Modified
- 2025-08-09T20:01:26Z
- Severity
-
- 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
vdpa: fix use-after-free on vpvdparemove
When vpvdpa driver is unbind, vpvdpa is freed in vdpaunregisterdevice and then vpvdpa->mdev.pcidev is dereferenced in vpmodernremove, triggering use-after-free.
Call Trace of unbinding driver free vpvdpa : dosyscall64 vfswrite kernfsfopwriteiter devicereleasedriverinternal pcideviceremove vpvdparemove vdpaunregisterdevice kobjectrelease devicerelease kfree
Call Trace of dereference vpvdpa->mdev.pcidev: vpmodernremove pcireleaseselectedregions pcireleaseregion pciresourcelen pciresource_end (dev)->resource[(bar)].end
- References