[SRU][D/E][PATCH 0/1] Disable CONFIG_IOMMU_DEBUGFS (enforce policy)

Khalid Elmously khalid.elmously at canonical.com
Tue Jan 28 04:15:08 UTC 2020


BugLink: https://bugs.launchpad.net/bugs/1861057

When CONFIG_IOMMU_DEBUGFS is enabled it shows a scary-looking security warning in the kernel log.
There's already a policy to disable this feature but it is curently unenforced.

This is being done specifically for cloud kernels but it seemed to me that this config should be disabled everywhere not just for cloud.

With this patch, I confirmed that derivatives can't be cranked if they have CONFIG_IOMMU_DEBUGFS enabled.

Khalid Elmously (1):
  Updating annotations to disable CONFIG_IOMMU_DEBUGFS

 debian.master/config/annotations | 1 +
 1 file changed, 1 insertion(+)

Khalid Elmously (1):
  Updating annotations to disable CONFIG_IOMMU_DEBUGFS

 debian.master/config/annotations | 3 +++
 1 file changed, 3 insertions(+)
-- 
2.17.1




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