RDMA/uverbs: Fix typo of sizeof argument

commit c489800e0d48097fc6afebd862c6afa039110a36 upstream.

Since size of 'hdr' pointer and '*hdr' structure is equal on 64-bit
machines issue probably didn't cause any wrong behavior. But anyway,
fixing of typo is required.

Fixes: da0f60df7bd5 ("RDMA/uverbs: Prohibit write() calls with too small buffers")
Co-developed-by: Ivanov Mikhail <ivanov.mikhail1@huawei-partners.com>
Signed-off-by: Ivanov Mikhail <ivanov.mikhail1@huawei-partners.com>
Signed-off-by: Konstantin Meskhidze <konstantin.meskhidze@huawei.com>
Link: https://lore.kernel.org/r/20230905103258.1738246-1-konstantin.meskhidze@huawei.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
index fa937cd..6fe8258 100644 (file)
--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c
@@ -535,7 +535,7 @@ static ssize_t verify_hdr(struct ib_uverbs_cmd_hdr *hdr,
        if (hdr->in_words * 4 != count)
                return -EINVAL;
 
-       if (count < method_elm->req_size + sizeof(hdr)) {
+       if (count < method_elm->req_size + sizeof(*hdr)) {
                /*
                 * rdma-core v18 and v19 have a bug where they send DESTROY_CQ
                 * with a 16 byte write instead of 24. Old kernels didn't