VYPR
Medium severity5.5NVD Advisory· Published May 22, 2024· Updated Jun 17, 2026

CVE-2021-47498

CVE-2021-47498

Description

In the Linux kernel, the following vulnerability has been resolved:

dm rq: don't queue request to blk-mq during DM suspend

DM uses blk-mq's quiesce/unquiesce to stop/start device mapper queue.

But blk-mq's unquiesce may come from outside events, such as elevator switch, updating nr_requests or others, and request may come during suspend, so simply ask for blk-mq to requeue it.

Fixes one kernel panic issue when running updating nr_requests and dm-mpath suspend/resume stress test.

Affected products

172

Patches

Vulnerability mechanics

References

4

News mentions

0

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