cifs: prevent integer overflow in nxt_dir_entry()

The "old_entry + le32_to_cpu(pDirInfo->NextEntryOffset)" can wrap
around so I have added a check for integer overflow.

Reported-by: Dr Silvio Cesare of InfoSect <[email protected]>
Reviewed-by: Ronnie Sahlberg <[email protected]>
Reviewed-by: Aurelien Aptel <[email protected]>
Signed-off-by: Dan Carpenter <[email protected]>
Signed-off-by: Steve French <[email protected]>
CC: Stable <[email protected]>

0 files changed, 0 insertions, 0 deletions