linux-kernel - [PATCH v3 5/7] arm: jump label may reference text in _

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <60284113bb759121e8ae3e99af1535647e52123f.1467837322.git.jbaron@akamai.com>
Date:	Wed,  6 Jul 2016 17:42:34 -0400
From:	Jason Baron <jbaron@...mai.com>
To:	akpm@...ux-foundation.org
Cc:	joe@...ches.com, peterz@...radead.org,
	linux-kernel@...r.kernel.org, Arnd Bergmann <arnd@...db.de>,
	linux-arm-kernel@...ts.infradead.org, linux@...linux.org.uk
Subject: [PATCH v3 5/7] arm: jump label may reference text in __exit

The jump table can reference text found in an __exit section. Thus,
instead of discarding it at build time, include EXIT_TEXT as part
of __init and it will be released when the system boots.

Cc: Arnd Bergmann <arnd@...db.de>
Cc: linux-arm-kernel@...ts.infradead.org
Cc: linux@...linux.org.uk
Signed-off-by: Jason Baron <jbaron@...mai.com>
---
 arch/arm/kernel/vmlinux.lds.S | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S
index e2c6da096cef..d4be685bc1eb 100644
--- a/arch/arm/kernel/vmlinux.lds.S
+++ b/arch/arm/kernel/vmlinux.lds.S
@@ -44,7 +44,7 @@
 #endif
 
 #if (defined(CONFIG_SMP_ON_UP) && !defined(CONFIG_DEBUG_SPINLOCK)) || \
-	defined(CONFIG_GENERIC_BUG)
+	defined(CONFIG_GENERIC_BUG) || defined(CONFIG_JUMP_LABEL)
 #define ARM_EXIT_KEEP(x)	x
 #define ARM_EXIT_DISCARD(x)
 #else
-- 
2.6.1