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CVE-2021-47498

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CVE-2021-47498

Published: May 22, 2024

Modified: May 11, 2026

PUBLISHED

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.

VendorProductVersions

Linux

Linux

affected
7b17c2f7292ba1f3f98dae3f7077f9e569653276 - < 8050652810bf38241edec8717393d2446e8036f1
affected
7b17c2f7292ba1f3f98dae3f7077f9e569653276 - < 8ca9745efe3528feb06ca4e117188038eea2d351
affected
7b17c2f7292ba1f3f98dae3f7077f9e569653276 - < b4459b11e84092658fa195a2587aff3b9637f0e7

Linux

Linux

affected
4.10
unaffected
0 - < 4.10
unaffected
5.10.241 - <= 5.10.*
unaffected
5.14.14 - <= 5.14.*
unaffected
5.15 - <= *

References

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