linux-kernel - Re: Serial buffer memory leak

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Wed, 8 Aug 2007 16:16:06 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Paul Fulghum <paulkf@...rogate.com>
Cc:	Laurent Pinchart <laurentp@...-semaphore.com>,
	linux-kernel@...r.kernel.org
Subject: Re: Serial buffer memory leak

> tty_buffer_flush() needs to wait for buf.flushpending to clear.

Not 100% sure it does as its no different to events really occuring with
a possible timing. Trivial to wait_event on the read queue for this
however and definitely worth doing to be sure.

Should probably make the flushpending an atomic bit op to avoid taking
and retaking the lock.

Alan
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/