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-rw-r--r--fs/fuse/dev.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index c235afc698a0..9897fe338818 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -901,6 +901,10 @@ static int fuse_notify_inval_entry(struct fuse_conn *fc, unsigned int size,
if (outarg.namelen > FUSE_NAME_MAX)
goto err;
+ err = -EINVAL;
+ if (size != sizeof(outarg) + outarg.namelen + 1)
+ goto err;
+
name.name = buf;
name.len = outarg.namelen;
err = fuse_copy_one(cs, buf, outarg.namelen + 1);