[asterisk-users] res_musiconhold.c Bug - Patch to solve?

[Danny Dias]

Hello Asterisk community,

We are having some problems with crashes in Asterisk, my asterisk
versions are 1.4.24.1 and 1.4.23.2. I have found this:

"~/work/asterisk-branch-1.4$ svn log -c 260345
------------------------------------------------------------------------
r260345 | mmichelson | 2010-04-30 22:08:15 +0200 (Fri, 30 Apr 2010) | 18 lines

Fix potential crash from race condition due to accessing channel data
without the channel locked.

In res_musiconhold.c, there are several places where a channel's
stream's existence is checked prior to calling ast_closestream on it. The issue
here is that in several cases, the channel was not locked while checking the
stream. The result was that if two threads checked the state of the channel's
stream at approximately the same time, then there could be a situation where
both threads attempt to call ast_closestream on the channel's stream. The result
here is that the refcount for the stream would go below 0, resulting in a crash.

I have added proper channel locking to res_musiconhold.c to ensure that
we do not try to check chan->stream without the channel locked. A
Digium customer has been using this patch for several weeks and has not
 had any crashes since applying the patch.

ABE-2147
"

How can i apply this patch on my asterisk versions: 1.4.24.1 and
1.4.23.2? do i have to apply this patch manually?

Thanks in advance for your help

-- 
Ing. Danny Dias
www.DannTEL.net