diff options
| author | Shiraz Saleem <shiraz.saleem@intel.com> | 2022-09-07 14:13:24 -0500 |
|---|---|---|
| committer | Leon Romanovsky <leon@kernel.org> | 2022-09-20 13:19:53 +0300 |
| commit | 34acb833cc83bdea912a160ff99b537e62bb4cf3 (patch) | |
| tree | 953fbf6e968b314c8d80527cd6d9faa317524f95 /include | |
| parent | 7f51a961f8c6b84752a48e950074a8c4a0808d91 (diff) | |
RDMA/irdma: Validate udata inlen and outlen
Currently ib_copy_from_udata and ib_copy_to_udata could underfill
the request and response buffer if the user-space passes an undersized
value for udata->inlen or udata->outlen respectively [1]
This could lead to undesirable behavior.
Zero initing the buffer only goes as far as preventing using the buffer
uninitialized.
Validate udata->inlen and udata->outlen passed from user-space to ensure
they are at least the required minimum size.
[1] https://lore.kernel.org/linux-rdma/MWHPR11MB0029F37D40D9D4A993F8F549E9D79@MWHPR11MB0029.namprd11.prod.outlook.com/
Fixes: b48c24c2d710 ("RDMA/irdma: Implement device supported verb APIs")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Link: https://lore.kernel.org/r/20220907191324.1173-3-shiraz.saleem@intel.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions