The patch titled
fix page leak during core dump
has been added to the -mm tree. Its filename is
fix-page-leak-during-core-dump.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: fix page leak during core dump
From: Brian Pomerantz <bapper@xxxxxxxxxxxxxxx>
When the dump cannot occur most likely because of a full file system and
the page to be written is the zero page, the call to page_cache_release()
is missed.
Signed-off-by: Brian Pomerantz <bapper@xxxxxxxxxx>
Cc: Hugh Dickins <hugh@xxxxxxxxxxx>
Cc: Nick Piggin <nickpiggin@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/binfmt_elf.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletion(-)
diff -puN fs/binfmt_elf.c~fix-page-leak-during-core-dump fs/binfmt_elf.c
--- a/fs/binfmt_elf.c~fix-page-leak-during-core-dump
+++ a/fs/binfmt_elf.c
@@ -1704,7 +1704,10 @@ static int elf_core_dump(long signr, str
DUMP_SEEK(PAGE_SIZE);
} else {
if (page == ZERO_PAGE(addr)) {
- DUMP_SEEK(PAGE_SIZE);
+ if (!dump_seek(file, PAGE_SIZE)) {
+ page_cache_release(page);
+ goto end_coredump;
+ }
} else {
void *kaddr;
flush_cache_page(vma, addr,
_
Patches currently in -mm which might be from bapper@xxxxxxxxxxxxxxx are
fix-page-leak-during-core-dump.patch
-
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