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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-19 19:11:10 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-19 19:11:10 -0800 |
| commit | 5abcd76f5d896de014bd8d1486107c483659d40d (patch) | |
| tree | 04d960c785e40300e800593826c9b1fa2137d2a5 /arch/x86/boot | |
| parent | a57ed93600f2dab64e859d524c3320fe0922e99d (diff) | |
| parent | 5dcd14ecd41ea2b3ae3295a9b30d98769d52165f (diff) | |
Merge branch 'x86-boot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 bootup changes from Ingo Molnar:
"Deal with bootloaders which fail to initialize unknown fields in
boot_params to zero, by sanitizing boot params passed in.
This unbreaks versions of kexec-utils. Other bootloaders do not
appear to show sensitivity to this change, but it's a possibility for
breakage nevertheless."
* 'x86-boot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, boot: Sanitize boot_params if not zeroed on creation
Diffstat (limited to 'arch/x86/boot')
| -rw-r--r-- | arch/x86/boot/compressed/misc.c | 2 | ||||
| -rw-r--r-- | arch/x86/boot/compressed/misc.h | 1 |
2 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c index 88f7ff6da40..7cb56c6ca35 100644 --- a/arch/x86/boot/compressed/misc.c +++ b/arch/x86/boot/compressed/misc.c @@ -325,6 +325,8 @@ asmlinkage void decompress_kernel(void *rmode, memptr heap, { real_mode = rmode; + sanitize_boot_params(real_mode); + if (real_mode->screen_info.orig_video_mode == 7) { vidmem = (char *) 0xb0000; vidport = 0x3b4; diff --git a/arch/x86/boot/compressed/misc.h b/arch/x86/boot/compressed/misc.h index 0e6dc0ee0ee..674019d8e23 100644 --- a/arch/x86/boot/compressed/misc.h +++ b/arch/x86/boot/compressed/misc.h @@ -18,6 +18,7 @@ #include <asm/page.h> #include <asm/boot.h> #include <asm/bootparam.h> +#include <asm/bootparam_utils.h> #define BOOT_BOOT_H #include "../ctype.h" |