linux-kernel - [PATCH 3.12 085/111] fs/binfmt_elf.c:load_elf_binary(): return -EINVAL on zero-length mappings

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Message-Id: <bab6655ecb3ff43da784f5297ac04f5d991c1e23.1433943052.git.jslaby@suse.cz>
Date:	Wed, 10 Jun 2015 17:27:14 +0200
From:	Jiri Slaby <jslaby@...e.cz>
To:	stable@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Michael Davidson <md@...gle.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Jiri Slaby <jslaby@...e.cz>
Subject: [PATCH 3.12 085/111] fs/binfmt_elf.c:load_elf_binary(): return -EINVAL on zero-length mappings

From: Andrew Morton <akpm@...ux-foundation.org>

3.12-stable review patch.  If anyone has any objections, please let me know.

===============

commit 2b1d3ae940acd11be44c6eced5873d47c2e00ffa upstream.

load_elf_binary() returns `retval', not `error'.

Fixes: a87938b2e246b81b4fb ("fs/binfmt_elf.c: fix bug in loading of PIE binaries")
Reported-by: James Hogan <james.hogan@...tec.com>
Cc: Michael Davidson <md@...gle.com>
Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@...ux-foundation.org>
Signed-off-by: Jiri Slaby <jslaby@...e.cz>
---
 fs/binfmt_elf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index ec6d0de19694..d872fda15539 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -822,7 +822,7 @@ static int load_elf_binary(struct linux_binprm *bprm)
 			total_size = total_mapping_size(elf_phdata,
 							loc->elf_ex.e_phnum);
 			if (!total_size) {
-				error = -EINVAL;
+				retval = -EINVAL;
 				goto out_free_dentry;
 			}
 		}
-- 
2.4.2

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