linux-kernel - [PATCH] module: Remove module size limit

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Date:	Mon, 30 Jan 2012 23:07:22 -0500
From:	Sasha Levin <levinsasha928@...il.com>
To:	rusty@...tcorp.com.au
Cc:	linux-kernel@...r.kernel.org, Sasha Levin <sasha.levin@...cle.com>,
	Tim Abbott <tim.abbott@...cle.com>, stable@...r.kernel.org
Subject: [PATCH] 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: Rusty Russell <rusty@...tcorp.com.au>
Cc: Tim Abbott <tim.abbott@...cle.com>
Cc: stable@...r.kernel.org
Signed-off-by: Sasha Levin <sasha.levin@...cle.com>
---
 kernel/module.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/kernel/module.c b/kernel/module.c
index 2c93276..3d56b6f 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -2380,8 +2380,7 @@ 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) {
-- 
1.7.8.4

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