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| author | Jason Gunthorpe <jgg@nvidia.com> | 2023-02-13 15:32:21 +0100 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2023-02-14 21:49:55 +0100 |
| commit | b3551ead616318ea155558cdbe7e91495b8d9b33 (patch) | |
| tree | 9ac199f32398b8bea2cfbbe085a4bc9fcb707ac2 /fs | |
| parent | Merge branch 'vfio-no-iommu' into iommufd.git for-next (diff) | |
| download | linux-b3551ead616318ea155558cdbe7e91495b8d9b33.tar.xz linux-b3551ead616318ea155558cdbe7e91495b8d9b33.zip | |
iommufd: Make sure to zero vfio_iommu_type1_info before copying to user
Missed a zero initialization here. Most of the struct is filled with
a copy_from_user(), however minsz for that copy is smaller than the
actual struct by 8 bytes, thus we don't fill the padding.
Cc: stable@vger.kernel.org # 6.1+
Fixes: d624d6652a65 ("iommufd: vfio container FD ioctl compatibility")
Link: https://lore.kernel.org/r/0-v1-a74499ece799+1a-iommufd_get_info_leak_jgg@nvidia.com
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reported-by: syzbot+cb1e0978f6bf46b83a58@syzkaller.appspotmail.com
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'fs')
0 files changed, 0 insertions, 0 deletions