Hi Linus,
Small rc update for some recently found bugs
Thanks,
Jason
The following changes since commit 6eaae198076080886b9e7d57f4ae06fa782f90ef:
Linux 6.5-rc3 (2023-07-23 15:24:10 -0700)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd.git tags/for-linus-iommufd
for you to fetch changes up to b7c822fa6b7701b17e139f1c562fc24135880ed4:
iommufd: Set end correctly when doing batch carry (2023-07-27 11:27:20 -0300)
----------------------------------------------------------------
iommufd for 6.5 rc
Two user triggerable problems:
- Syzkaller found a way to trigger a WARN_ON and leak memory by racing
destroy with other actions
- There is still a bug in the "batch carry" stuff that gets invoked for
complex cases with accesses and unmapping of huge pages. The test suite
found this (triggers rarely)
----------------------------------------------------------------
Jason Gunthorpe (2):
iommufd: IOMMUFD_DESTROY should not increase the refcount
iommufd: Set end correctly when doing batch carry
drivers/iommu/iommufd/device.c | 12 ++---
drivers/iommu/iommufd/iommufd_private.h | 15 ++++++-
drivers/iommu/iommufd/main.c | 78 +++++++++++++++++++++++++--------
drivers/iommu/iommufd/pages.c | 2 +-
4 files changed, 76 insertions(+), 31 deletions(-)
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