diff options
| author | Andi Kleen <ak@suse.de> | 2006-01-11 22:43:39 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-01-11 19:04:51 -0800 |
| commit | 7a4a76cc1057de0dc96ee481590347aa8c5b9ffb (patch) | |
| tree | b2f2b8d46fc859b2ec4e7b6e1d3d24ffc7d1c507 /arch | |
| parent | 7180d4fb83085fef9d24b353f5bd79cf6fd98447 (diff) | |
| download | linux-7a4a76cc1057de0dc96ee481590347aa8c5b9ffb.tar.gz | |
[PATCH] x86_64: Fix off by one in acpi table mapping
And fix the test to include the size
Noticed by Vivek Goyal
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/i386/kernel/acpi/boot.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/i386/kernel/acpi/boot.c b/arch/i386/kernel/acpi/boot.c index 447fa9e33ffbea..2111529dea7782 100644 --- a/arch/i386/kernel/acpi/boot.c +++ b/arch/i386/kernel/acpi/boot.c @@ -108,7 +108,7 @@ char *__acpi_map_table(unsigned long phys_addr, unsigned long size) if (!phys_addr || !size) return NULL; - if (phys_addr < (end_pfn_map << PAGE_SHIFT)) + if (phys_addr+size <= (end_pfn_map << PAGE_SHIFT) + PAGE_SIZE) return __va(phys_addr); return NULL; |