CVE-2022-48658 is a high-severity vulnerability in the Linux kernel's SLUB memory allocator, specifically affecting the flush_cpu_slab() and __free_slab() invocations. It arises from a dependency issue when a workqueue with WQ_MEM_RECLAIM set attempts to flush the global workqueue from a task context, leading to a potential system crash or instability. With a CVSS score of 7.8 (High), this local vulnerability could allow an authenticated attacker to achieve high confidentiality, integrity, and availability impacts. There is currently no public exploit code available, nor is there evidence of active exploitation or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
> 5.15, < 5.15.71CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
> 5.16, < 5.19.12CPE 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:H/I:H/A:H
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The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.