CVE-2022-48731 is a vulnerability in the Linux kernel's kmemleak memory leak detector, specifically affecting systems utilizing AMD APUs. It arises when devm_request_free_mem_region() and devm_memremap_pages() create a very large memory "hole," causing the kmemleak scanner to enter an inefficient, prolonged loop. This can lead to a soft lockup, rendering the system unresponsive. The vulnerability has a CVSS score of 5.5 (Medium), indicating a local attack vector with low complexity, requiring local privileges. The primary impact is high availability loss (A:H) due to the system lockup, with no impact on confidentiality or integrity. There is no evidence of active exploitation, nor are there publicly available exploits in Metasploit, Nuclei, or ExploitDB. Community discussion and media coverage for this CVE are minimal, suggesting low public attention.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 5.4.178CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 5.5, < 5.10.99CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 5.11, < 5.15.22CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 5.16, < 5.16.8CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
5.17CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:5.17:rc1:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.