Re: [PATCH] unix: avoid use-after-free in ep_remove_wait_queue

From: Rainer Weikusat
Date: Mon Nov 23 2015 - 18:06:58 EST


Rainer Weikusat <rw@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> writes:
> David Miller <davem@xxxxxxxxxxxxx> writes:

[...]

> I'm sorry for this 13th hour request/ suggestion but while thinking
> about a reply to Dmitry, it occurred to me that the restart_locked/
> sk_locked logic could be avoided by moving the test for this condition
> in front of all the others while leaving the 'act on it' code at its
> back, ie, reorganize unix_dgram_sendmsg such that it looks like this:

[...]

Just in case this is unclear on its own: If this was considered an
improvement by someone other than me, I could supply either a "complete"
patch with this re-arrangement or a cleanup delta patch changing the
previous change.
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