CVE-2024-53232 (GCVE-0-2024-53232)
Vulnerability from cvelistv5
Published
2024-12-27 13:50
Modified
2025-05-04 09:56
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: iommu/s390: Implement blocking domain This fixes a crash when surprise hot-unplugging a PCI device. This crash happens because during hot-unplug __iommu_group_set_domain_nofail() attaching the default domain fails when the platform no longer recognizes the device as it has already been removed and we end up with a NULL domain pointer and UAF. This is exactly the case referred to in the second comment in __iommu_device_set_domain() and just as stated there if we can instead attach the blocking domain the UAF is prevented as this can handle the already removed device. Implement the blocking domain to use this handling. With this change, the crash is fixed but we still hit a warning attempting to change DMA ownership on a blocked device.
References
Impacted products
Vendor Product Version
Linux Linux Version: c76c067e488ccd55734c3e750799caf2c5956db6
Version: c76c067e488ccd55734c3e750799caf2c5956db6
Version: c76c067e488ccd55734c3e750799caf2c5956db6
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