From: Christoph Biedl <[email protected]>
Date: Wed, 25 Nov 2015 07:47:40 +0100
> Commit 35a4a57 ("isdn: clean up debug format string usage") introduced
> a safeguard to avoid accidential format string interpolation of data
> when calling debugl1 or HiSax_putstatus. This did however not take into
> account VHiSax_putstatus (called by HiSax_putstatus) does *not* call
> vsprintf if the head parameter is NULL - the format string is treated
> as plain text then instead. As a result, the string "%s" is processed
> literally, and the actual information is lost. This affects the isdnlog
> userspace program which stopped logging information since that commit.
>
> So revert the HiSax_putstatus invocations to the previous state.
>
> Fixes: 35a4a5733b0a ("isdn: clean up debug format string usage")
> Cc: Kees Cook <[email protected]>
> Cc: Karsten Keil <[email protected]>
> Signed-off-by: Christoph Biedl <[email protected]>
Applied, thanks.
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