From: Namjae Jeon linkinjeon@kernel.org
mainline inclusion from mainline-5.16-rc7 commit f2e78affc48dee29b989c1d9b0d89b503dcd1204 category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I60T7G CVE: NA
Reference: https://git.kernel.org/torvalds/linux/c/f2e78affc48d
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No check for if "rc" is an error code for build_sec_desc(). This can cause problems with using uninitialized pntsd_size.
Fixes: e2f34481b24d ("cifsd: add server-side procedures for SMB3") Cc: stable@vger.kernel.org # v5.15 Reported-by: Dan Carpenter dan.carpenter@oracle.com Signed-off-by: Namjae Jeon linkinjeon@kernel.org Signed-off-by: Steve French stfrench@microsoft.com Signed-off-by: Jason Yan yanaijie@huawei.com Signed-off-by: Zhong Jinghua zhongjinghua@huawei.com --- fs/ksmbd/smb2pdu.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/fs/ksmbd/smb2pdu.c b/fs/ksmbd/smb2pdu.c index 81a56d78fc2d..80142d420660 100644 --- a/fs/ksmbd/smb2pdu.c +++ b/fs/ksmbd/smb2pdu.c @@ -2941,6 +2941,10 @@ int smb2_open(struct ksmbd_work *work) &pntsd_size, &fattr); posix_acl_release(fattr.cf_acls); posix_acl_release(fattr.cf_dacls); + if (rc) { + kfree(pntsd); + goto err_out; + }
rc = ksmbd_vfs_set_sd_xattr(conn, path.dentry,