* [f2fs-dev] [PATCH] f2fs: check upper bound of ino value in f2fs_nfs_get_inode
@ 2014-03-12 9:08 Chao Yu
0 siblings, 0 replies; only message in thread
From: Chao Yu @ 2014-03-12 9:08 UTC (permalink / raw)
To: ???; +Cc: linux-f2fs-devel, linux-fsdevel, linux-kernel
Upper bound checking of ino should be added to f2fs_nfs_get_inode, so unneeded
process before do_read_inode in f2fs_iget could be avoided when ino is invalid.
Signed-off-by: Chao Yu <chao2.yu@samsung.com>
---
fs/f2fs/super.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 6e4851c..3a51d7a 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -644,6 +644,8 @@ static struct inode *f2fs_nfs_get_inode(struct super_block *sb,
if (unlikely(ino < F2FS_ROOT_INO(sbi)))
return ERR_PTR(-ESTALE);
+ if (unlikely(ino >= NM_I(sbi)->max_nid))
+ return ERR_PTR(-ESTALE);
/*
* f2fs_iget isn't quite right if the inode is currently unallocated!
--
1.7.9.5
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2014-03-12 9:09 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2014-03-12 9:08 [f2fs-dev] [PATCH] f2fs: check upper bound of ino value in f2fs_nfs_get_inode Chao Yu
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®