Vulnerability Details : CVE-2021-47498
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.
Products affected by CVE-2021-47498
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Exploit prediction scoring system (EPSS) score for CVE-2021-47498
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 7 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-47498
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
134c704f-9b21-4f2e-91b3-4a467353bcc0 | 2024-11-01 |
References for CVE-2021-47498
-
https://git.kernel.org/stable/c/b4459b11e84092658fa195a2587aff3b9637f0e7
dm rq: don't queue request to blk-mq during DM suspend - kernel/git/stable/linux.git - Linux kernel stable tree
-
https://git.kernel.org/stable/c/8ca9745efe3528feb06ca4e117188038eea2d351
dm rq: don't queue request to blk-mq during DM suspend - kernel/git/stable/linux.git - Linux kernel stable tree
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