CVE-2023-6915
Kernel: null pointer dereference vulnerability in ida_free in lib/idr.c
CVSS Score
6.2
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-476 |
| Vendor | red hat |
| Product | red hat enterprise linux 8 |
| Published | Jan 15, 2024 |
| Last Updated | Nov 6, 2025 |
Stay Ahead of the Next One
Get instant alerts for red hat red hat enterprise linux 8
Be the first to know when new medium vulnerabilities affecting red hat red hat enterprise linux 8 are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 9
All versions affected Red Hat / Red Hat Enterprise Linux 9
All versions affected Red Hat / Red Hat Enterprise Linux 6
All versions affected Red Hat / Red Hat Enterprise Linux 7
All versions affected Red Hat / Red Hat Enterprise Linux 7
All versions affected Red Hat / Red Hat Enterprise Linux 9
All versions affected References
access.redhat.com: https://access.redhat.com/errata/RHSA-2024:2394 access.redhat.com: https://access.redhat.com/errata/RHSA-2024:2950 access.redhat.com: https://access.redhat.com/errata/RHSA-2024:3138 access.redhat.com: https://access.redhat.com/security/cve/CVE-2023-6915 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2254982 github.com: https://github.com/torvalds/linux/commit/af73483f4e8b6f5c68c9aa63257bdd929a9c194a lists.debian.org: https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html
Credits
Red Hat would like to thank ZhengHan Wang (Hillstone Network) for reporting this issue.