CVE-2022-49951
- Source
- https://cve.org/CVERecord?id=CVE-2022-49951
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49951.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2022-49951
- Downstream
- Related
- Published
- 2025-06-18T11:00:14Z
- Modified
- 2026-08-12T03:51:12Z
- Summary
- firmware_loader: Fix use-after-free during unregister
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
firmware_loader: Fix use-after-free during unregister
In the following code within firmware_upload_unregister(), the call to device_unregister() could result in the dev_release function freeing the fw_upload_priv structure before it is dereferenced for the call to module_put(). This bug was found by the kernel test robot using CONFIG_KASAN while running the firmware selftests.
device_unregister(&fw_sysfs->dev); module_put(fw_upload_priv->module);
The problem is fixed by copying fw_upload_priv->module to a local variable for use when calling device_unregister().
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49951.json" }- References
-
- https://git.kernel.org/stable/c/8b40c38e37492b5bdf8e95b46b5cca9517a9957a
- https://git.kernel.org/stable/c/d380d40930a674c520a5b55f3be1eb17dc634ebc
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49951.json
- https://nvd.nist.gov/vuln/detail/CVE-2022-49951
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git