From eb9dbecdda75492fc96f363ad183c5cd35225141 Mon Sep 17 00:00:00 2001 From: Kang Chen Date: Wed, 12 Apr 2023 17:38:20 +0800 Subject: [PATCH] eulerfs: fix wrong dereferencing in eufs_lookup uniontech inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I6TN56 CVE: NA -------------------------------- smatch report: fs/eulerfs/namei.c:118 eufs_lookup() error: 'inode' dereferencing possible ERR_PTR() fix it by using the ino above in eufs_err. Reviewed-by: Yu Kuai Signed-off-by: Kang Chen --- fs/eulerfs/namei.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/fs/eulerfs/namei.c b/fs/eulerfs/namei.c index e4c6c36575f2..fce4d7745a6b 100644 --- a/fs/eulerfs/namei.c +++ b/fs/eulerfs/namei.c @@ -114,9 +114,11 @@ static struct dentry *eufs_lookup(struct inode *dir, struct dentry *dentry, goto not_found; inode = eufs_iget(dir->i_sb, s2p(dir->i_sb, de->inode)); - if (inode == ERR_PTR(-ESTALE)) { - eufs_err(dir->i_sb, "deleted inode referenced: 0x%lx", - inode->i_ino); + if (IS_ERR(inode)) { + eufs_err(dir->i_sb, "eufs_iget failed ino 0x%llx err %ld\n", + le64_to_cpu(de->inode), PTR_ERR(inode)); + if (inode == ERR_PTR(-ENOMEM)) + return ERR_PTR(-ENOMEM); return ERR_PTR(-EIO); } not_found: -- Gitee