CVE-2021-47420

drm/amdkfd: fix a potential ttm->sg memory leak

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: fix a potential ttm->sg memory leak Memory is allocated for ttm->sg by kmalloc in kfd_mem_dmamap_userptr, but isn't freed by kfree in kfd_mem_dmaunmap_userptr. Free it!

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.05%
Affected: Linux Linux
Affected: Linux Linux
Published at:
Updated at:

References

Link Tags
https://git.kernel.org/stable/c/7e5ce6029b627efb4a004746cfdc1eeff850e6eb patch
https://git.kernel.org/stable/c/b072ef1215aca33186e3a10109e872e528a9e516 patch

Frequently Asked Questions

What is the severity of CVE-2021-47420?
CVE-2021-47420 has been scored as a medium severity vulnerability.
How to fix CVE-2021-47420?
To fix CVE-2021-47420, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-47420 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-47420 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-47420?
CVE-2021-47420 affects Linux Linux, Linux Linux.
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