CVE-2022-48846 Vulnerability Details

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CVE-2022-48846 Metadata Quick Info

CVE Published: 16/07/2024 | CVE Updated: 04/11/2024 | CVE Year: 2022
Source: Linux | Vendor: Linux | Product: Linux
Status : PUBLISHED

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CVE-2022-48846 Description

In the Linux kernel, the following vulnerability has been resolved: block: release rq qos structures for queue without disk blkcg_init_queue() may add rq qos structures to request queue, previously blk_cleanup_queue() calls rq_qos_exit() to release them, but commit 8e141f9eb803 ("block: drain file system I/O on del_gendisk") moves rq_qos_exit() into del_gendisk(), so memory leak is caused because queues may not have disk, such as un-present scsi luns, nvme admin queue, ... Fixes the issue by adding rq_qos_exit() to blk_cleanup_queue() back. BTW, v5.18 won\'t need this patch any more since we move blkcg_init_queue()/blkcg_exit_queue() into disk allocation/release handler, and patches have been in for-5.18/block.

Metrics

CVSS Version: 3.1 | Base Score: n/a
Vector: n/a

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Weakness Enumeration (CWE)

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Source: Linux

Common Attack Pattern Enumeration and Classification (CAPEC)

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Source: NVD (National Vulnerability Database).