[syslinux] [PATCH 1/1] linux.c32: Fix initrd alignment

[Pierre-Alexandre Meyer]

Impact: None.

The end of memory needs to be page aligned: if the initrd expands beyond it,
Linux kernels won't be able to access the last few bytes.

Signed-off-by: Pierre-Alexandre Meyer <pierre at mouraf.org>
---
 com32/lib/syslinux/load_linux.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/com32/lib/syslinux/load_linux.c b/com32/lib/syslinux/load_linux.c
index b772056..d09a2cb 100644
--- a/com32/lib/syslinux/load_linux.c
+++ b/com32/lib/syslinux/load_linux.c
@@ -292,7 +292,7 @@ int syslinux_boot_linux(void *kernel_buf, size_t kernel_size,
 	addr_t adj_start = (ml->start+align_mask) & ~align_mask;
 	if (ml->type == SMT_FREE &&
 	    ml->next->start - adj_start >= irf_size)
-	  best_addr = (ml->next->start - irf_size) & ~align_mask;
+	  best_addr = ((ml->next->start & ~align_mask) - irf_size) & ~align_mask;
       }
 
       if (!best_addr)
-- 
1.5.4.3