CVE-2021-47498 | BDVDB-2026-237156 Detail

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.

Impact#

Weaknesses#

References#

Exploit#

History#

1. Version 12024-05-22Record published in the CVE List.
2. Version 22026-05-11Most recent update recorded in the CVE List.