High 8.4Published Sep 11, 2026

CVE-2026-89452iommu/msm: Unwind probe state on registration failure

Updated under an hour ago (Oct 26, 2026, 9:23 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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: 8.4 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Received
Record last updated: Oct 21, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	42df43b36163ed7d0ab13992e411093252903273 builds before 6a1ae472113762f794682229a0f233f1ee0f69a4; from 42df43b36163ed7d0ab13992e411093252903273 before 51e37f9179387b6e3fa64a3d3b4fece1a38b3a02; from 42df43b36163ed7d0ab13992e411093252903273 before f532401be9312ecd166f616bb74a65b0b4c150fa; 42df43b36163ed7d0ab13992e411093252903273 builds before 7f7074a886c4a93e3d12076ce60a510a1ebe400c; from 42df43b36163ed7d0ab13992e411093252903273 before 535a200220ca2c83bc8bf54bd2cbe045d6ee70c4	CNA record

References

References

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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.