5.4-stable review patch. If anyone has any objections, please let me know.
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From: Konstantin Meskhidze konstantin.meskhidze@huawei.com
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@huaw... Signed-off-by: Leon Romanovsky leon@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/infiniband/core/uverbs_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/infiniband/core/uverbs_main.c +++ b/drivers/infiniband/core/uverbs_main.c @@ -633,7 +633,7 @@ static ssize_t verify_hdr(struct ib_uver 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