5.5

CVE-2021-47253

drm/amd/display: Fix potential memory leak in DMUB hw_init

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version < 5.10.45
Linux ≫ Linux Kernel Version >= 5.11 < 5.12.12
Linux ≫ Linux Kernel Version 5.13 Update rc1
Linux ≫ Linux Kernel Version 5.13 Update rc2
Linux ≫ Linux Kernel Version 5.13 Update rc3
Linux ≫ Linux Kernel Version 5.13 Update rc4
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.23% 0.129
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-401 Missing Release of Memory after Effective Lifetime

The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.

https://git.kernel.org/stable/c/9e8c2af010463197315fa54a6c17e74988b5259c
Patch
https://git.kernel.org/stable/c/aa000f828e60ac15d6340f606ec4a673966f5b0b
Patch
https://git.kernel.org/stable/c/c5699e2d863f58221044efdc3fa712dd32d55cde
Patch