CVE-2021-47498 (GCVE-0-2021-47498)

Vulnerability from cvelistv5 – Published: 2024-05-22 08:19 – Updated: 2025-12-18 11:37
VLAI?
Title
dm rq: don't queue request to blk-mq during DM suspend
Summary
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.
Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 7b17c2f7292ba1f3f98dae3f7077f9e569653276 , < 8050652810bf38241edec8717393d2446e8036f1 (git)
Affected: 7b17c2f7292ba1f3f98dae3f7077f9e569653276 , < 8ca9745efe3528feb06ca4e117188038eea2d351 (git)
Affected: 7b17c2f7292ba1f3f98dae3f7077f9e569653276 , < b4459b11e84092658fa195a2587aff3b9637f0e7 (git)
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    Linux Linux Affected: 4.10
Unaffected: 0 , < 4.10 (semver)
Unaffected: 5.10.241 , ≤ 5.10.* (semver)
Unaffected: 5.14.14 , ≤ 5.14.* (semver)
Unaffected: 5.15 , ≤ * (original_commit_for_fix)
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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