CVE-2021-46920 (GCVE-0-2021-46920)

Vulnerability from cvelistv5 – Published: 2024-02-27 06:53 – Updated: 2025-05-04 07:00
VLAI?
Summary
In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Fix clobbering of SWERR overflow bit on writeback Current code blindly writes over the SWERR and the OVERFLOW bits. Write back the bits actually read instead so the driver avoids clobbering the OVERFLOW bit that comes after the register is read.
Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: bfe1d56091c1a404b3d4ce7e9809d745fc4453bb , < a5ad12d5d69c63af289a37f05187a0c6fe93553d (git)
Affected: bfe1d56091c1a404b3d4ce7e9809d745fc4453bb , < 02981a44a0e402089775416371bd2e0c935685f8 (git)
Affected: bfe1d56091c1a404b3d4ce7e9809d745fc4453bb , < ea941ac294d75d0ace50797aebf0056f6f8f7a7f (git)
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    Linux Linux Affected: 5.6
Unaffected: 0 , < 5.6 (semver)
Unaffected: 5.10.32 , ≤ 5.10.* (semver)
Unaffected: 5.11.16 , ≤ 5.11.* (semver)
Unaffected: 5.12 , ≤ * (original_commit_for_fix)
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Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • 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.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • 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.



Detection rules are retrieved from Rulezet.