1. Home
  2. CVE Database
  3. CVE-2021-47420
MEDIUM · 5.5

CVE-2021-47420

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 fr...

Vulnerability 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!

CVSS Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Affected Products

VendorProductVersions
LinuxLinux Kernel>= 5.14, < 5.14.12

Related Weaknesses (CWE)

CWE-401

References

FAQ

What is CVE-2021-47420?

CVE-2021-47420 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 fr...

How severe is CVE-2021-47420?

CVE-2021-47420 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-2021-47420?

Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.