diff options
Diffstat (limited to 'fs/smb/client/misc.c')
| -rw-r--r-- | fs/smb/client/misc.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/smb/client/misc.c b/fs/smb/client/misc.c index 0c54b9b79a2c..ee1728eec8aa 100644 --- a/fs/smb/client/misc.c +++ b/fs/smb/client/misc.c @@ -752,6 +752,10 @@ parse_dfs_referrals(struct get_dfs_referral_rsp *rsp, u32 rsp_size, node->ref_flag = le16_to_cpu(ref->ReferralEntryFlags); /* copy DfsPath */ + if (le16_to_cpu(ref->DfsPathOffset) > data_end - (char *)ref) { + rc = -EINVAL; + goto parse_DFS_referrals_exit; + } temp = (char *)ref + le16_to_cpu(ref->DfsPathOffset); max_len = data_end - temp; node->path_name = cifs_strndup_from_utf16(temp, max_len, @@ -762,6 +766,10 @@ parse_dfs_referrals(struct get_dfs_referral_rsp *rsp, u32 rsp_size, } /* copy link target UNC */ + if (le16_to_cpu(ref->NetworkAddressOffset) > data_end - (char *)ref) { + rc = -EINVAL; + goto parse_DFS_referrals_exit; + } temp = (char *)ref + le16_to_cpu(ref->NetworkAddressOffset); max_len = data_end - temp; node->node_name = cifs_strndup_from_utf16(temp, max_len, |