5.15-stable review patch. If anyone has any objections, please let me know.
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From: "Gustavo A. R. Silva" gustavoars@kernel.org
[ Upstream commit 5211cc8727ed9701b04976ab47602955e5641bda ]
Prefer struct_size() over open-coded versions.
Link: https://github.com/KSPP/linux/issues/160 Signed-off-by: Gustavo A. R. Silva gustavoars@kernel.org Reviewed-by: Kees Cook keescook@chromium.org Acked-by: Namjae Jeon linkinjeon@kernel.org Reviewed-by: Sergey Senozhatsky senozhatsky@chromium.org Signed-off-by: Steve French stfrench@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/ksmbd/smb_common.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/ksmbd/smb_common.c +++ b/fs/ksmbd/smb_common.c @@ -266,7 +266,7 @@ static int ksmbd_negotiate_smb_dialect(v if (smb2_neg_size > smb_buf_length) goto err_out;
- if (smb2_neg_size + le16_to_cpu(req->DialectCount) * sizeof(__le16) > + if (struct_size(req, Dialects, le16_to_cpu(req->DialectCount)) > smb_buf_length) goto err_out;