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| author | Wenpeng Liang <liangwenpeng@huawei.com> | 2020-12-11 09:37:27 +0800 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2020-12-11 15:21:33 -0400 |
| commit | 1c0ca9cd1741687f529498ddb899805fc2c51caa (patch) | |
| tree | 56e09de77be176567297cd61b651c479c53cf431 /tools/perf/scripts/python/exported-sql-viewer.py | |
| parent | 6f320f6990ee2dd13df89707f1a219ecfe2960ad (diff) | |
RDMA/hns: Limit the length of data copied between kernel and userspace
For ib_copy_from_user(), the length of udata may not be the same as that
of cmd. For ib_copy_to_user(), the length of udata may not be the same as
that of resp. So limit the length to prevent out-of-bounds read and write
operations from ib_copy_from_user() and ib_copy_to_user().
Fixes: de77503a5940 ("RDMA/hns: RDMA/hns: Assign rq head pointer when enable rq record db")
Fixes: 633fb4d9fdaa ("RDMA/hns: Use structs to describe the uABI instead of opencoding")
Fixes: ae85bf92effc ("RDMA/hns: Optimize qp param setup flow")
Fixes: 6fd610c5733d ("RDMA/hns: Support 0 hop addressing for SRQ buffer")
Fixes: 9d9d4ff78884 ("RDMA/hns: Update the kernel header file of hns")
Link: https://lore.kernel.org/r/1607650657-35992-2-git-send-email-liweihang@huawei.com
Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'tools/perf/scripts/python/exported-sql-viewer.py')
0 files changed, 0 insertions, 0 deletions