From 8c6052cea547d2d6960d22b19b75a75870cb98bc Mon Sep 17 00:00:00 2001 From: Vladimir 'phcoder' Serbinenko Date: Sat, 13 Feb 2010 16:30:22 +0100 Subject: [PATCH] 2010-02-13 Vladimir Serbinenko * loader/sparc64/ieee1275/linux.c (alloc_phys): Correct bounds checking. --- ChangeLog | 4 ++++ loader/sparc64/ieee1275/linux.c | 10 +++++----- 2 files changed, 9 insertions(+), 5 deletions(-) diff --git a/ChangeLog b/ChangeLog index 47da5ccf2..c9f64df01 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,7 @@ +2010-02-13 Vladimir Serbinenko + + * loader/sparc64/ieee1275/linux.c (alloc_phys): Correct bounds checking. + 2010-02-13 Vladimir Serbinenko * kern/sparc64/ieee1275/crt0.S (codestart): Move modules backwards. diff --git a/loader/sparc64/ieee1275/linux.c b/loader/sparc64/ieee1275/linux.c index 42bae6bb8..51d82ddcc 100644 --- a/loader/sparc64/ieee1275/linux.c +++ b/loader/sparc64/ieee1275/linux.c @@ -193,20 +193,20 @@ alloc_phys (grub_addr_t size) return 0; addr = align_addr (addr, FOUR_MB); - if (addr >= end) + if (addr + size >= end) return 0; if (addr >= grub_phys_start && addr < grub_phys_end) { addr = align_addr (grub_phys_end, FOUR_MB); - if (addr >= end) + if (addr + size >= end) return 0; } if ((addr + size) >= grub_phys_start && (addr + size) < grub_phys_end) { addr = align_addr (grub_phys_end, FOUR_MB); - if (addr >= end) + if (addr + size >= end) return 0; } @@ -217,14 +217,14 @@ alloc_phys (grub_addr_t size) if (addr >= linux_paddr && addr < linux_end) { addr = linux_end; - if (addr >= end) + if (addr + size >= end) return 0; } if ((addr + size) >= linux_paddr && (addr + size) < linux_end) { addr = linux_end; - if (addr >= end) + if (addr + size >= end) return 0; } }