CVE-2021-47498 — dm rq: don't queue request to blk-mq during DM suspend
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 dev…
Published: 2024-05-22 · CVSS: 5.5 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7