CVE-2026-89452: falha de alta gravidade em Linux
iommu/msm: Unwind probe state on registration failure
Publicada em · Atualizada em
21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 8.4epss 0.2%
probabilidade de exploração
0.2%top 92% das CVEs
exploração observada
nãonenhuma fonte reporta
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:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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