Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: uio_hv_generic: Fix another memory leak in error handling paths Memory allocated by 'vmbus_alloc_ring()' at the beginning of the probe function is never freed in the error handling path. Add the missing 'vmbus_free_ring()' call. Note that it is already freed in the .remove function.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.20, < 5.12.7 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/0b0226be3a52dadd965644bc52a807961c2c26dfPatch
- https://git.kernel.org/stable/c/261bbd90cc53d2835343f056770156cf1e82cf03
- https://git.kernel.org/stable/c/5f59240cf25b2f7a0fdffc2701482a70310fec07Patch
- https://git.kernel.org/stable/c/0b0226be3a52dadd965644bc52a807961c2c26dfPatch
- https://git.kernel.org/stable/c/5f59240cf25b2f7a0fdffc2701482a70310fec07Patch
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
FAQ
What is CVE-2021-47070?
CVE-2021-47070 is a vulnerability with a CVSS score of 5.5 (MEDIUM). In the Linux kernel, the following vulnerability has been resolved: uio_hv_generic: Fix another memory leak in error handling paths Memory allocated by 'vmbus_alloc_ring()' at the beginning of the p...
How severe is CVE-2021-47070?
CVE-2021-47070 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-47070?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.