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-rw-r--r--tools/virtiofsd/fuse_lowlevel.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/virtiofsd/fuse_lowlevel.c b/tools/virtiofsd/fuse_lowlevel.c
index 01c418a..704c036 100644
--- a/tools/virtiofsd/fuse_lowlevel.c
+++ b/tools/virtiofsd/fuse_lowlevel.c
@@ -1116,6 +1116,10 @@ static void do_read(fuse_req_t req, fuse_ino_t nodeid,
struct fuse_file_info fi;
arg = fuse_mbuf_iter_advance(iter, sizeof(*arg));
+ if (!arg) {
+ fuse_reply_err(req, EINVAL);
+ return;
+ }
memset(&fi, 0, sizeof(fi));
fi.fh = arg->fh;