The patch titled
fix page leak during core dump
has been removed from the -mm tree. Its filename was
fix-page-leak-during-core-dump.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
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>
Cc: David Howells <dhowells@xxxxxxxxxx>
Cc: <stable@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/binfmt_elf.c | 5 ++++-
fs/binfmt_elf_fdpic.c | 2 +-
2 files changed, 5 insertions(+), 2 deletions(-)
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,
diff -puN fs/binfmt_elf_fdpic.c~fix-page-leak-during-core-dump fs/binfmt_elf_fdpic.c
--- a/fs/binfmt_elf_fdpic.c~fix-page-leak-during-core-dump
+++ a/fs/binfmt_elf_fdpic.c
@@ -1480,8 +1480,8 @@ static int elf_fdpic_dump_segments(struc
DUMP_SEEK(file->f_pos + PAGE_SIZE);
}
else if (page == ZERO_PAGE(addr)) {
- DUMP_SEEK(file->f_pos + PAGE_SIZE);
page_cache_release(page);
+ DUMP_SEEK(file->f_pos + PAGE_SIZE);
}
else {
void *kaddr;
_
Patches currently in -mm which might be from bapper@xxxxxxxxxxxxxxx are
origin.patch
-
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