CVE-2022-49411 (GCVE-0-2022-49411)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:12 – Updated: 2026-08-05 08:55
VLAI
Title
bfq: Make sure bfqg for which we are queueing requests is online
Summary
In the Linux kernel, the following vulnerability has been resolved: bfq: Make sure bfqg for which we are queueing requests is online Bios queued into BFQ IO scheduler can be associated with a cgroup that was already offlined. This may then cause insertion of this bfq_group into a service tree. But this bfq_group will get freed as soon as last bio associated with it is completed leading to use after free issues for service tree users. Fix the problem by making sure we always operate on online bfq_group. If the bfq_group associated with the bio is not online, we pick the first online parent.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-03-05 21:14 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: e21b7a0b988772e82e7147e1c659a5afe2ae003c , < ccddf8cd411c1800863ed357064e56ceffd356bb (git)
Affected: e21b7a0b988772e82e7147e1c659a5afe2ae003c , < 51f724bffa3403a5236597e6b75df7329c1ec6e9 (git)
Affected: e21b7a0b988772e82e7147e1c659a5afe2ae003c , < 6ee0868b0c3ccead5907685fcdcdd0c08dfe4b0b (git)
Affected: e21b7a0b988772e82e7147e1c659a5afe2ae003c , < 97bd6c56bdcb41079e488e31df56809e3b2ce628 (git)
Affected: e21b7a0b988772e82e7147e1c659a5afe2ae003c , < 7781c38552e6cc54ed8e9040279561340516b881 (git)
Affected: e21b7a0b988772e82e7147e1c659a5afe2ae003c , < 075a53b78b815301f8d3dd1ee2cd99554e34f0dd (git)
Create a notification for this product.
Linux Linux Affected: 4.12
Unaffected: 0 , < 4.12 (semver)
Unaffected: 5.4.198 , ≤ 5.4.* (semver)
Unaffected: 5.10.121 , ≤ 5.10.* (semver)
Unaffected: 5.15.46 , ≤ 5.15.* (semver)
Unaffected: 5.17.14 , ≤ 5.17.* (semver)
Unaffected: 5.18.3 , ≤ 5.18.* (semver)
Unaffected: 5.19 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.
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  • 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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.