Vulnerability details
CVE-2026-89452
iommu/msm: Unwind probe state on registration failure
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.4High | 3.1 | CVEProject cvelistV5 (CNA) (Linux) | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Linux | Linux | 4.11 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 42df43b36163ed7d0ab13992e411093252903273 ≤ v < 6a1ae472113762f794682229a0f233f1ee0f69a4 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 42df43b36163ed7d0ab13992e411093252903273 ≤ v < 51e37f9179387b6e3fa64a3d3b4fece1a38b3a02 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 42df43b36163ed7d0ab13992e411093252903273 ≤ v < 51424c14dbdadc8c2ad4abf842265a50f69d78aa | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 42df43b36163ed7d0ab13992e411093252903273 ≤ v < 7f7074a886c4a93e3d12076ce60a510a1ebe400c | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 42df43b36163ed7d0ab13992e411093252903273 ≤ v < 535a200220ca2c83bc8bf54bd2cbe045d6ee70c4 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 42df43b36163ed7d0ab13992e411093252903273 ≤ v < f532401be9312ecd166f616bb74a65b0b4c150fa | CVEProject cvelistV5 (CNA) |
References and advisories
6- https://git.kernel.org/stable/c/51424c14dbdadc8c2ad4abf842265a50f69d78aa
- https://git.kernel.org/stable/c/6a1ae472113762f794682229a0f233f1ee0f69a4
- https://git.kernel.org/stable/c/51e37f9179387b6e3fa64a3d3b4fece1a38b3a02
- https://git.kernel.org/stable/c/f532401be9312ecd166f616bb74a65b0b4c150fa
- https://git.kernel.org/stable/c/7f7074a886c4a93e3d12076ce60a510a1ebe400c
- https://git.kernel.org/stable/c/535a200220ca2c83bc8bf54bd2cbe045d6ee70c4
Details
- Published
- 2026-09-11
- Last updated
- 2026-10-30
- State
- Published
- Assigner (CNA)
- Linux
Exploit prediction (EPSS)
Weaknesses (CWE)
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