CVE-2024-39494
Last modified
CVE-2024-39494 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: ima: Fix use-after-free on a dentry's dname.name ->d_name.name can change on rename and the earlier value can be freed; there are conditions sufficient to stabilize it (->d_lock on dentry, ->d_lock on its parent, ->i_rwsem exclusive on the parent's inode, rename_lock), but none of those are met at any of the sites. Take a stable snapshot of the name instead.. EPSS estimates a 0.31% chance of exploitation in the next 30 days.
Description
In the Linux kernel, the following vulnerability has been resolved: ima: Fix use-after-free on a dentry's dname.name ->d_name.name can change on rename and the earlier value can be freed; there are conditions sufficient to stabilize it (->d_lock on dentry, ->d_lock on its parent, ->i_rwsem exclusive on the parent's inode, rename_lock), but none of those are met at any of the sites. Take a stable snapshot of the name instead.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Debian | Debian Linux | 11.0 |
| Linux | Linux Kernel | >= 3.19, < 5.4.291 |
| Linux | Linux Kernel | >= 5.5, < 5.10.235 |
| Linux | Linux Kernel | >= 5.11, < 5.15.174 |
| Linux | Linux Kernel | >= 5.16, < 6.1.97 |
| Linux | Linux Kernel | >= 6.2, < 6.6.35 |
| Linux | Linux Kernel | >= 6.7, < 6.9.6 |
References
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.htmlMailing List, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
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- CVE-2024-39497In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2024-39498In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2024-39499In the Linux kernel, the following vulnerability has been re…7.1
- CVE-2024-39500In the Linux kernel, the following vulnerability has been re…4.7
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