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CVE-2021-47253

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CVE-2021-47253

Published: May 21, 2024

Modified: May 11, 2026

PUBLISHED

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix potential memory leak in DMUB hw_init [Why] On resume we perform DMUB hw_init which allocates memory: dm_resume->dm_dmub_hw_init->dc_dmub_srv_create->kzalloc That results in memory leak in suspend/resume scenarios. [How] Allocate memory for the DC wrapper to DMUB only if it was not allocated before. No need to reallocate it on suspend/resume.

VendorProductVersions

Linux

Linux

affected
4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c - < 9e8c2af010463197315fa54a6c17e74988b5259c
affected
4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c - < aa000f828e60ac15d6340f606ec4a673966f5b0b
affected
4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c - < c5699e2d863f58221044efdc3fa712dd32d55cde

Linux

Linux

affected
4.15
unaffected
0 - < 4.15
unaffected
5.10.45 - <= 5.10.*
unaffected
5.12.12 - <= 5.12.*
unaffected
5.13 - <= *

References

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