CVE-2026-89452High· 8.4▾ TwilightIn 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 a…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 46.2 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Sep 12.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.2%
— → 4.4
— → 8.4
none → high
8.4 → 4.4
high → medium
4.4 → 8.4
medium → high
8.4 → 4.4
high → medium
4.4 → 5.5
Last analysed / modified upstream
5.5 → 8.4
medium → high
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.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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