CVE-2026-89452
Description
In the Linux kernel, the following vulnerability has been resolved: iommu/msm: Unwind probe state on registration failure msm_iommu_probe() adds its devm-managed IOMMU object to qcom_iommu_devices before adding the IOMMU sysfs device and registering it with the IOMMU core. If iommu_device_sysfs_add() fails, probe returns with the object still on qcom_iommu_devices. The driver core then releases the devm allocation, leaving a dangling list entry that later list walks may dereference. If iommu_device_register() fails, the same dangling list entry remains and the sysfs device is left registered as well. Unwind the sysfs device and global list entry in reverse setup order on the corresponding failure paths.
How to fix
- Linux Linux51424c14dbdadc8c2ad4abf842265a50f69d78aa, 6a1ae472113762f794682229a0f233f1ee0f69a4, 51e37f9179387b6e3fa64a3d3b4fece1a38b3a02, f532401be9312ecd166f616bb74a65b0b4c150fa, 7f7074a886c4a93e3d12076ce60a510a1ebe400c, 535a200220ca2c83bc8bf54bd2cbe045d6ee70c4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 42df43b36163ed7d0ab13992e411093252903273 ≤ v < 51424c14dbdadc8c2ad4abf842265a50f69d78aa, 42df43b36163ed7d0ab13992e411093252903273 ≤ v < 6a1ae472113762f794682229a0f233f1ee0f69a4, 42df43b36163ed7d0ab13992e411093252903273 ≤ v < 51e37f9179387b6e3fa64a3d3b4fece1a38b3a02, 42df43b36163ed7d0ab13992e411093252903273 ≤ v < f532401be9312ecd166f616bb74a65b0b4c150fa, 42df43b36163ed7d0ab13992e411093252903273 ≤ v < 7f7074a886c4a93e3d12076ce60a510a1ebe400c, 42df43b36163ed7d0ab13992e411093252903273 ≤ v < 535a200220ca2c83bc8bf54bd2cbe045d6ee70c4, 4.11 | 51424c14dbdadc8c2ad4abf842265a50f69d78aa, 6a1ae472113762f794682229a0f233f1ee0f69a4, 51e37f9179387b6e3fa64a3d3b4fece1a38b3a02, f532401be9312ecd166f616bb74a65b0b4c150fa, 7f7074a886c4a93e3d12076ce60a510a1ebe400c, 535a200220ca2c83bc8bf54bd2cbe045d6ee70c4 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.