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ksmbd: increment reference count of parent fp

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[ Upstream commit 8510a043d334ecdf83d4604782f288db6bf21d60 ]

Add missing increment reference count of parent fp in
ksmbd_lookup_fd_inode().

Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Reviewed-by: Hyunchul Lee <hyc.lee@gmail.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Namjae Jeon 2022-04-05 12:04:43 +09:00 committed by Greg Kroah-Hartman
parent 50f79a2abb
commit df30cbfd3d
2 changed files with 3 additions and 0 deletions
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2
fs/ksmbd/smb2pdu.c
View File

@ -5768,8 +5768,10 @@ static int set_rename_info(struct ksmbd_work *work, struct ksmbd_file *fp,
if (parent_fp) {
if (parent_fp->daccess & FILE_DELETE_LE) {
pr_err("parent dir is opened with delete access\n");
ksmbd_fd_put(work, parent_fp);
return -ESHARE;
}
ksmbd_fd_put(work, parent_fp);
}
next:
return smb2_rename(work, fp, user_ns, rename_info,

1
fs/ksmbd/vfs_cache.c
View File

@ -497,6 +497,7 @@ struct ksmbd_file *ksmbd_lookup_fd_inode(struct inode *inode)
list_for_each_entry(lfp, &ci->m_fp_list, node) {
if (inode == file_inode(lfp->filp)) {
atomic_dec(&ci->m_count);
lfp = ksmbd_fp_get(lfp);
read_unlock(&ci->m_lock);
return lfp;
}