CVE-2023-52448 (GCVE-0-2023-52448)

Vulnerability from cvelistv5 – Published: 2024-02-22 16:21 – Updated: 2026-05-11 19:27
VLAI
Title
gfs2: Fix kernel NULL pointer dereference in gfs2_rgrp_dump
Summary
In the Linux kernel, the following vulnerability has been resolved: gfs2: Fix kernel NULL pointer dereference in gfs2_rgrp_dump Syzkaller has reported a NULL pointer dereference when accessing rgd->rd_rgl in gfs2_rgrp_dump(). This can happen when creating rgd->rd_gl fails in read_rindex_entry(). Add a NULL pointer check in gfs2_rgrp_dump() to prevent that.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 72244b6bc752b5c496f09de9a13c18adc314a53c , < efc8ef87ab9185a23d5676f2f7d986022d91bcde (git)
Affected: 72244b6bc752b5c496f09de9a13c18adc314a53c , < 5c28478af371a1c3fdb570ca67f110e1ae60fc37 (git)
Affected: 72244b6bc752b5c496f09de9a13c18adc314a53c , < ee0586d73cbaf0e7058bc640d62a9daf2dfa9178 (git)
Affected: 72244b6bc752b5c496f09de9a13c18adc314a53c , < d69d7804cf9e2ba171a27e5f98bc266f13d0414a (git)
Affected: 72244b6bc752b5c496f09de9a13c18adc314a53c , < 067a7c48c2c70f05f9460d6f0e8423e234729f05 (git)
Affected: 72244b6bc752b5c496f09de9a13c18adc314a53c , < c323efd620c741168c8e0cc6fc0be04ab57e331a (git)
Affected: 72244b6bc752b5c496f09de9a13c18adc314a53c , < 8877243beafa7c6bfc42022cbfdf9e39b25bd4fa (git)
Create a notification for this product.
Linux Linux Affected: 4.20
Unaffected: 0 , < 4.20 (semver)
Unaffected: 5.4.268 , ≤ 5.4.* (semver)
Unaffected: 5.10.209 , ≤ 5.10.* (semver)
Unaffected: 5.15.148 , ≤ 5.15.* (semver)
Unaffected: 6.1.75 , ≤ 6.1.* (semver)
Unaffected: 6.6.14 , ≤ 6.6.* (semver)
Unaffected: 6.7.2 , ≤ 6.7.* (semver)
Unaffected: 6.8 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-28T07:44:19+00:00",
      "cve": "CVE-2023-52448",
      "id": "CVE-2023-52448",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:fixed": "930",
      "product_status:known_affected": "22",
      "product_status:known_not_affected": "62",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: gfs2: Fix kernel NULL pointer dereference in gfs2_rgrp_dump",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-52448.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-07-15T20:09:57Z",
      "cve": "CVE-2023-52448",
      "id": "CVE-2023-52448",
      "initial_release_date": "2024-02-24T03:17:17Z",
      "product_status:known_affected": "249",
      "product_status:known_not_affected": "192",
      "product_status:recommended": "857",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2023-52448",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-52448.json",
      "version": "56"
    },
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  }
}



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Taxonomy of the tags.





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.