diff options
| author | Chien Tin Tung <chien.tin.tung@intel.com> | 2018-03-21 21:09:25 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-05-30 08:52:17 +0300 |
| commit | 7245e2d1790b4dbcaf318c36b87758d568e67f8b (patch) | |
| tree | 454c8ecbf41f27f76c4e9fa4496adc241d8dea44 /drivers/infiniband/core/ucma.c | |
| parent | 405544d5f864ae0b8c191a2ff3201c0277bbeb70 (diff) | |
| download | linux-7245e2d1790b4dbcaf318c36b87758d568e67f8b.tar.xz | |
RDMA/ucma: Correct option size check using optlen
[ Upstream commit 5f3e3b85cc0a5eae1c46d72e47d3de7bf208d9e2 ]
The option size check is using optval instead of optlen
causing the set option call to fail. Use the correct
field, optlen, for size check.
Fixes: 6a21dfc0d0db ("RDMA/ucma: Limit possible option size")
Signed-off-by: Chien Tin Tung <chien.tin.tung@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/infiniband/core/ucma.c')
| -rw-r--r-- | drivers/infiniband/core/ucma.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c index c65f0e8ecbd6..e47baf0950e3 100644 --- a/drivers/infiniband/core/ucma.c +++ b/drivers/infiniband/core/ucma.c @@ -1315,7 +1315,7 @@ static ssize_t ucma_set_option(struct ucma_file *file, const char __user *inbuf, if (IS_ERR(ctx)) return PTR_ERR(ctx); - if (unlikely(cmd.optval > KMALLOC_MAX_SIZE)) + if (unlikely(cmd.optlen > KMALLOC_MAX_SIZE)) return -EINVAL; optval = memdup_user((void __user *) (unsigned long) cmd.optval, |