CVE-2023-52926 (GCVE-0-2023-52926)

Vulnerability from cvelistv5 – Published: 2025-02-24 09:01 – Updated: 2026-05-11 19:35
VLAI
Title
io_uring/rw: split io_read() into a helper
Summary
In the Linux kernel, the following vulnerability has been resolved: IORING_OP_READ did not correctly consume the provided buffer list when read i/o returned < 0 (except for -EAGAIN and -EIOCBQUEUED return). This can lead to a potential use-after-free when the completion via io_rw_done runs at separate context.
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 (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 2b188cc1bb857a9d4701ae59aa7768b5124e262e , < 72060434a14caea20925e492310d6e680e3f9007 (git)
Affected: 2b188cc1bb857a9d4701ae59aa7768b5124e262e , < 6c27fc6a783c8a77c756dd5461b15e465020d075 (git)
Affected: 2b188cc1bb857a9d4701ae59aa7768b5124e262e , < a08d195b586a217d76b42062f88f375a3eedda4d (git)
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Linux Linux Affected: 5.1
Unaffected: 0 , < 5.1 (semver)
Unaffected: 6.1.122 , ≤ 6.1.* (semver)
Unaffected: 6.6.68 , ≤ 6.6.* (semver)
Unaffected: 6.7 , ≤ * (original_commit_for_fix)
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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

Author Source Type Date Other

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.