Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian | Debian Linux | 11.0 |
| Linux | Linux Kernel | >= 3.19, < 5.4.291 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/0b31e28fbd773aefb6164687e0767319b8199829Patch
- https://git.kernel.org/stable/c/480afcbeb7aaaa22677d3dd48ec590b441eaac1aPatch
- https://git.kernel.org/stable/c/7fb374981e31c193b1152ed8d3b0a95b671330d4Patch
- https://git.kernel.org/stable/c/a78a6f0da57d058e2009e9958fdcef66f165208cPatch
- https://git.kernel.org/stable/c/be84f32bb2c981ca670922e047cdde1488b233dePatch
- https://git.kernel.org/stable/c/dd431c3ac1fc34a9268580dd59ad3e3c76b32a8cPatch
- https://git.kernel.org/stable/c/edf287bc610b18d7a9c0c0c1cb2e97b9348c71bbPatch
- https://git.kernel.org/stable/c/7fb374981e31c193b1152ed8d3b0a95b671330d4Patch
- https://git.kernel.org/stable/c/a78a6f0da57d058e2009e9958fdcef66f165208cPatch
- https://git.kernel.org/stable/c/be84f32bb2c981ca670922e047cdde1488b233dePatch
- https://git.kernel.org/stable/c/dd431c3ac1fc34a9268580dd59ad3e3c76b32a8cPatch
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.htmlMailing ListThird Party Advisory
FAQ
What is CVE-2024-39494?
CVE-2024-39494 is a vulnerability with a CVSS score of 7.8 (HIGH). 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 ...
How severe is CVE-2024-39494?
CVE-2024-39494 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-39494?
Check the references section above for vendor advisories and patch information. Affected products include: Debian Debian Linux, Linux Linux Kernel.