Patch "x86/boot: Double BOOT_HEAP_SIZE to 64KB" has been added to the 3.14-stable tree

Patch "x86/boot: Double BOOT_HEAP_SIZE to 64KB" has been added to the 3.14-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    x86/boot: Double BOOT_HEAP_SIZE to 64KB

to the 3.14-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     x86-boot-double-boot_heap_size-to-64kb.patch
and it can be found in the queue-3.14 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 8c31902cffc4d716450be549c66a67a8a3dd479c Mon Sep 17 00:00:00 2001
From: "H.J. Lu" <hjl.tools@gmail.com>
Date: Mon, 4 Jan 2016 10:17:09 -0800
Subject: x86/boot: Double BOOT_HEAP_SIZE to 64KB

From: "H.J. Lu" <hjl.tools@gmail.com>

commit 8c31902cffc4d716450be549c66a67a8a3dd479c upstream.

When decompressing kernel image during x86 bootup, malloc memory
for ELF program headers may run out of heap space, which leads
to system halt.  This patch doubles BOOT_HEAP_SIZE to 64KB.

Tested with 32-bit kernel which failed to boot without this patch.

Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/x86/include/asm/boot.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/x86/include/asm/boot.h
+++ b/arch/x86/include/asm/boot.h
@@ -27,7 +27,7 @@
 #define BOOT_HEAP_SIZE             0x400000
 #else /* !CONFIG_KERNEL_BZIP2 */
 
-#define BOOT_HEAP_SIZE	0x8000
+#define BOOT_HEAP_SIZE	0x10000
 
 #endif /* !CONFIG_KERNEL_BZIP2 */
 


Patches currently in stable-queue which might be from hjl.tools@gmail.com are

queue-3.14/x86-boot-double-boot_heap_size-to-64kb.patch