sstrip: fix section length corruption bug

Based on openwrt #6847:

https://dev.openwrt.org/ticket/6847

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

diff --git a/toolchain/sstrip/sstrip.c b/toolchain/sstrip/sstrip.c
index 1842f053c6f1369a78ea0a83b5882fa965252067..03adc0eacf854dc787f937632489d4a153115356 100644 (file)
--- a/toolchain/sstrip/sstrip.c
+++ b/toolchain/sstrip/sstrip.c
@@ -253,8 +253,7 @@ static int modifyheaders ## CLASS (Elf ## CLASS ## _Ehdr *ehdr, \
                        ESET(phdr->p_offset,newsize); \
                        ESET(phdr->p_filesz,0); \
                } else if (EGET(phdr->p_offset) + EGET(phdr->p_filesz) > newsize) { \
-                       newsize -= EGET(phdr->p_offset); \
-                       ESET(phdr->p_filesz, newsize); \
+                       ESET(phdr->p_filesz, newsize - EGET(phdr->p_offset)); \
                } \
        } \
  \