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...@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
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