module: Remove module size limit

Module size was limited to 64MB, this was legacy limitation due to vmalloc()
which was removed a while ago.

Limiting module size to 64MB is both pointless and affects real world use
cases.

Cc: Tim Abbott <tim.abbott@oracle.com>
Cc: stable@vger.kernel.org
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

diff --git a/kernel/module.c b/kernel/module.c
index 294692d..78ac6ec 100644 (file)
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -2411,8 +2411,7 @@ static int copy_and_check(struct load_info *info,
                return -ENOEXEC;
 
        /* Suck in entire file: we'll want most of it. */
-       /* vmalloc barfs on "unusual" numbers.  Check here */
-       if (len > 64 * 1024 * 1024 || (hdr = vmalloc(len)) == NULL)
+       if ((hdr = vmalloc(len)) == NULL)
                return -ENOMEM;
 
        if (copy_from_user(hdr, umod, len) != 0) {