linux-kernel - Re: [PATCH] Fix kfree bug in sendmsg and recvmsg

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] [day] [month] [year] [list]

Date:	Wed, 17 Feb 2016 13:29:23 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	joe.korty@...r.com
Cc:	viro@...iv.linux.org.uk, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Fix kfree bug in sendmsg and recvmsg

From: Joe Korty <joe.korty@...r.com>
Date: Wed, 17 Feb 2016 11:38:05 -0500

> Fix kfree bug in recvmsg and sendmsg.
> 
> We cannot kfree(iov) when iov points to an array on the
> stack, as that has the potential of corrupting memory.
> 
> So re-introduce the if-stmt that used to protect kfree
> from this condition, code that was removed as part of
> a larger set of changes made by git commit da184284.
> 
> Signed-off-by: Joe Korty <joe.korty@...r.com>

Please submit networking patches to netdev@...r.kernel.org, thank you.