** Changed in: linux (Ubuntu Bionic)
Status: In Progress => Fix Committed
** Changed in: linux (Ubuntu Cosmic)
Status: In Progress => Fix Committed
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https://bugs.launchpad.net/bugs/1819546
Title:
Avoid potential memory corruption on HiSilicon SoCs
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Bionic:
Fix Committed
Status in linux source package in Cosmic:
Fix Committed
Status in linux source package in Disco:
Fix Released
Bug description:
[Impact]
There is a potential for memory corruption in MSI payloads. For reasons
mentioned in the commit message, this happens to not be triggerable today, but
is fragile, and could rear it's ugly head if a struct layout changes due to
other backports in the future.
[Test Case]
Regression-only.
[Fix]
84a9a75774961 iommu/arm-smmu-v3: Avoid memory corruption from Hisilicon MSI
payloads
[Regression Risk]
The fix is to add some explicit padding into an internal structure. This
padding is already implicit today.
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