CVE-2022-48937 addresses a soft lockup vulnerability in the Linux kernel's io_uring subsystem. Specifically, the io_add_buffers() function, when looping approximately 65535 times and performing kmalloc() calls, can cause a CPU to become stuck, particularly when kernel debugging features like KASAN are enabled. This issue affects Linux kernel versions. The vulnerability is rated as LOW severity (CVSS 3.1: 3.3/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L). It requires local access and low privileges to trigger, with a low attack complexity. The primary impact is a denial of service (soft lockup) due to system unresponsiveness, without affecting confidentiality or integrity. There is no evidence of active exploitation for CVE-2022-48937. No public exploit code or Metasploit/Nuclei modules are available, and there is minimal community discussion or media coverage surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 5.7, < 5.10.103CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 5.11, < 5.15.26CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 5.16, < 5.16.12CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
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:L
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.