From: IWAMOTO Toshihiro <iwamoto@valinux.co.jp>
This patch fixes a memory leak that happens when a core file hits the
process's resource limit.
---
25-akpm/fs/binfmt_elf.c | 8 +++++++-
1 files changed, 7 insertions(+), 1 deletion(-)
diff -puN fs/binfmt_elf.c~coredump-memleak-fix fs/binfmt_elf.c
--- 25/fs/binfmt_elf.c~coredump-memleak-fix Mon Feb 2 14:11:45 2004
+++ 25-akpm/fs/binfmt_elf.c Mon Feb 2 14:11:45 2004
@@ -1448,7 +1448,13 @@ static int elf_core_dump(long signr, str
void *kaddr;
flush_cache_page(vma, addr);
kaddr = kmap(page);
- DUMP_WRITE(kaddr, PAGE_SIZE);
+ if ((size += PAGE_SIZE) > limit ||
+ !dump_write(file, kaddr,
+ PAGE_SIZE)) {
+ kunmap(page);
+ page_cache_release(page);
+ goto end_coredump;
+ }
kunmap(page);
}
page_cache_release(page);
_