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CVE-2022-48658

Public on 2024-04-28
Modified on 2024-05-18
Description

In the Linux kernel, the following vulnerability has been resolved: mm: slub: fix flush_cpu_slab()/__free_slab() invocations in task context. Commit 5a836bf6b09f ("mm: slub: move flush_cpu_slab() invocations __free_slab() invocations out of IRQ context") moved all flush_cpu_slab() invocations to the global workqueue to avoid a problem related with deactivate_slab()/__free_slab() being called from an IRQ context on PREEMPT_RT kernels.

Severity
Medium
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CVSS v3 Base Score
5.5
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Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Kernel-5.15 Extra kernel 2022-10-17 22:06 ALAS2KERNEL-5.15-2022-009

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD CVSSv3 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

Red Hat: CVE-2022-48658 Mitre: CVE-2022-48658 FAQs regarding Amazon Linux ALAS/CVE Severity