From: Catalin Marinas <[email protected]> Date: Fri, 20 Mar 2015 16:48:13 +0000
> Commit db31c55a6fb2 (net: clamp ->msg_namelen instead of returning an > error) introduced the clamping of msg_namelen when the unsigned value > was larger than sizeof(struct sockaddr_storage). This caused a > msg_namelen of -1 to be valid. The native code was subsequently fixed by > commit dbb490b96584 (net: socket: error on a negative msg_namelen). > > In addition, the native code sets msg_namelen to 0 when msg_name is > NULL. This was done in commit (6a2a2b3ae075 net:socket: set msg_namelen > to 0 if msg_name is passed as NULL in msghdr struct from userland) and > subsequently updated by 08adb7dabd48 (fold verify_iovec() into > copy_msghdr_from_user()). > > This patch brings the get_compat_msghdr() in line with > copy_msghdr_from_user(). > > Fixes: db31c55a6fb2 (net: clamp ->msg_namelen instead of returning an error) > Cc: David S. Miller <[email protected]> > Cc: Dan Carpenter <[email protected]> > Signed-off-by: Catalin Marinas <[email protected]> Applied and queued up for -stable, thanks. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
