diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.9.21/0083-module-Add-retpoline-tag-to-VERMAGIC.patch')
-rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.9.21/0083-module-Add-retpoline-tag-to-VERMAGIC.patch | 55 |
1 files changed, 0 insertions, 55 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.9.21/0083-module-Add-retpoline-tag-to-VERMAGIC.patch b/common/recipes-kernel/linux/linux-yocto-4.9.21/0083-module-Add-retpoline-tag-to-VERMAGIC.patch deleted file mode 100644 index becd5732..00000000 --- a/common/recipes-kernel/linux/linux-yocto-4.9.21/0083-module-Add-retpoline-tag-to-VERMAGIC.patch +++ /dev/null @@ -1,55 +0,0 @@ -From 6d7e28033f88af1e16f0ed63395fd246791e5857 Mon Sep 17 00:00:00 2001 -From: Andi Kleen <ak@linux.intel.com> -Date: Tue, 16 Jan 2018 12:52:28 -0800 -Subject: [PATCH 083/103] module: Add retpoline tag to VERMAGIC - -commit 6cfb521ac0d5b97470883ff9b7facae264b7ab12 upstream. - -Add a marker for retpoline to the module VERMAGIC. This catches the case -when a non RETPOLINE compiled module gets loaded into a retpoline kernel, -making it insecure. - -It doesn't handle the case when retpoline has been runtime disabled. Even -in this case the match of the retcompile status will be enforced. This -implies that even with retpoline run time disabled all modules loaded need -to be recompiled. - -Signed-off-by: Andi Kleen <ak@linux.intel.com> -Signed-off-by: Thomas Gleixner <tglx@linutronix.de> -Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -Acked-by: David Woodhouse <dwmw@amazon.co.uk> -Cc: rusty@rustcorp.com.au -Cc: arjan.van.de.ven@intel.com -Cc: jeyu@kernel.org -Cc: torvalds@linux-foundation.org -Link: https://lkml.kernel.org/r/20180116205228.4890-1-andi@firstfloor.org -Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> ---- - include/linux/vermagic.h | 8 +++++++- - 1 file changed, 7 insertions(+), 1 deletion(-) - -diff --git a/include/linux/vermagic.h b/include/linux/vermagic.h -index 6f8fbcf..a3d0493 100644 ---- a/include/linux/vermagic.h -+++ b/include/linux/vermagic.h -@@ -24,10 +24,16 @@ - #ifndef MODULE_ARCH_VERMAGIC - #define MODULE_ARCH_VERMAGIC "" - #endif -+#ifdef RETPOLINE -+#define MODULE_VERMAGIC_RETPOLINE "retpoline " -+#else -+#define MODULE_VERMAGIC_RETPOLINE "" -+#endif - - #define VERMAGIC_STRING \ - UTS_RELEASE " " \ - MODULE_VERMAGIC_SMP MODULE_VERMAGIC_PREEMPT \ - MODULE_VERMAGIC_MODULE_UNLOAD MODULE_VERMAGIC_MODVERSIONS \ -- MODULE_ARCH_VERMAGIC -+ MODULE_ARCH_VERMAGIC \ -+ MODULE_VERMAGIC_RETPOLINE - --- -2.7.4 - |