Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Avoid unnecessary destruction of file_ida file_ida is allocated during cdev open and is freed accordingly during cdev release. This sequence is guaranteed by driver file operations. Therefore, there is no need to destroy an already empty file_ida when the WQ cdev is removed. Worse, ida_free() in cdev release may happen after destruction of file_ida per WQ cdev. This can lead to accessing an id in file_ida after it has been destroyed, resulting in a kernel panic. Remove ida_destroy(&file_ida) to address these issues.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 6.4, < 6.6.33 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/15edb906211bf53e7b5574f7326ab734d6bff4f9Patch
- https://git.kernel.org/stable/c/76e43fa6a456787bad31b8d0daeabda27351a480Patch
- https://git.kernel.org/stable/c/9eb15f24a0b9b017b39cde8b8c07243676b63687Patch
- https://git.kernel.org/stable/c/15edb906211bf53e7b5574f7326ab734d6bff4f9Patch
- https://git.kernel.org/stable/c/76e43fa6a456787bad31b8d0daeabda27351a480Patch
- https://git.kernel.org/stable/c/9eb15f24a0b9b017b39cde8b8c07243676b63687Patch
FAQ
What is CVE-2024-38629?
CVE-2024-38629 is a vulnerability with a CVSS score of 7.8 (HIGH). In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Avoid unnecessary destruction of file_ida file_ida is allocated during cdev open and is freed accordingly during ...
How severe is CVE-2024-38629?
CVE-2024-38629 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-2024-38629?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.