CVE-2025-71071
iommu/mediatek: fix use-after-free on probe deferral
Published 9 mo ago · modified 4 mo ago · JSON
Summary
In the Linux kernel, the following vulnerability has been resolved:
iommu/mediatek: fix use-after-free on probe deferral
The driver is dropping the references taken to the larb devices during probe after successful lookup as well as on errors. This can potentially lead to a use-after-free in case a larb device has not yet been bound to its driver so that the iommu driver probe defers.
Fix this by keeping the references as expected while the iommu driver is bound.
Exploit prediction (EPSS)
0.15% probability of exploitation in the next 30 days, higher than 4% of all scored CVEs.
CVSS scores
| Assigned by | Version | Score | Vector |
|---|---|---|---|
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
- Linux Linux
Classification
- Weakness
- CWE-416 Use After Free
- Technology feeds
- Linux kernel (RSS, critical only)
References
- git.kernel.org /stable/c/896ec55da3b90bdb9fc04fedc17ad8c359b2eee5
- git.kernel.org /stable/c/5c04217d06a1161aaf36267e9d971ab6f847d5a7
- git.kernel.org /stable/c/1ef70a0b104ae8011811f60bcfaa55ff49385171
- git.kernel.org /stable/c/f6c08d3aa441bbc1956e9d65f1cbb89113a5aa8a
- git.kernel.org /stable/c/de83d4617f9fe059623e97acf7e1e10d209625b5
Sources
- CVE List: CVE-2025-71071
- NVD: CVE-2025-71071
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