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Vulnerability record · CVE-2023-6915 · published 15 January 2024

CVE-2023-6915: Debian linux null pointer dereference vulnerability

Debian · Debian Linux

A Null pointer dereference problem was found in ida_free in lib/idr.c in the Linux Kernel. This issue may allow an attacker using this library to cause a denial of service problem due to a missing check at a function return.

5.5 CVSS 3.1 Medium EPSS 0.28% · top 79.5% CWE-476 · NULL pointer dereference
5.5CVSS 3.1 base score
0.28%EPSS exploitation probability, 30 days
NoNot in CISA KEV
24Affected product versions listed by NVD
13References
5 Nov 2026Last modified by NVD

Description

A Null pointer dereference problem was found in ida_free in lib/idr.c in the Linux Kernel. This issue may allow an attacker using this library to cause a denial of service problem due to a missing check at a function return.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

24 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://access.redhat.com/errata/RHSA-2024:2394 Vendor Advisory
https://access.redhat.com/errata/RHSA-2024:2950 Vendor Advisory
https://access.redhat.com/errata/RHSA-2024:3138 Vendor Advisory
https://access.redhat.com/security/cve/CVE-2023-6915 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2254982 Issue Tracking
https://github.com/torvalds/linux/commit/af73483f4e8b6f5c68c9aa63257bdd929a9c194a Patch
https://access.redhat.com/errata/RHSA-2024:2394 Vendor Advisory
https://access.redhat.com/errata/RHSA-2024:2950 Vendor Advisory
https://access.redhat.com/errata/RHSA-2024:3138 Vendor Advisory
https://access.redhat.com/security/cve/CVE-2023-6915 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2254982 Issue Tracking
https://github.com/torvalds/linux/commit/af73483f4e8b6f5c68c9aa63257bdd929a9c194a Patch
https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html Mailing ListThird Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2023-6915), CISA KEV, FIRST EPSS (scores of 2026-11-14). This page is refreshed as NVD updates the record.