From 68dcbbd067e2873ac871722bc0a4586bd4648cab Mon Sep 17 00:00:00 2001 From: Long Li Date: Wed, 16 Oct 2019 13:51:52 -0700 Subject: [PATCH] cifs: smbd: Return -EINVAL when the number of iovs exceeds SMBDIRECT_MAX_SGE commit 37941ea17d3f8eb2f5ac2f59346fab9e8439271a upstream. While it's not friendly to fail user processes that issue more iovs than we support, at least we should return the correct error code so the user process gets a chance to retry with smaller number of iovs. Signed-off-by: Long Li Cc: stable@vger.kernel.org Signed-off-by: Steve French Signed-off-by: Greg Kroah-Hartman --- fs/cifs/smbdirect.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/cifs/smbdirect.c b/fs/cifs/smbdirect.c index bf681c7e6689..b442bfaf292b 100644 --- a/fs/cifs/smbdirect.c +++ b/fs/cifs/smbdirect.c @@ -1069,7 +1069,7 @@ static int smbd_post_send_data( if (n_vec > SMBDIRECT_MAX_SGE) { cifs_dbg(VFS, "Can't fit data to SGL, n_vec=%d\n", n_vec); - return -ENOMEM; + return -EINVAL; } sg_init_table(sgl, n_vec);