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Bug#961345: cups: daemon crashes with invalid free()



Bernhard Übelacker wrote on 25/08/2020 11:50:
> Am 25.08.20 um 11:02 schrieb Ronny Adsetts:
>> Aug 25 09:56:32 samba-prn-01 valgrind[28088]: ==28088==    by 0x13076D: ??? (in /usr/sbin/cupsd)
>> Aug 25 09:56:32 samba-prn-01 valgrind[28088]: ==28088==    by 0x5AC5261: ???
>> Aug 25 09:56:32 samba-prn-01 valgrind[28088]: ==28088==    by 0x5F44D23F: ???
>> Aug 25 09:56:32 samba-prn-01 valgrind[28088]: ==28088==
>>
>> Does that give any further insight?
> 
> Is the cups-daemon-dbgsym installed and from the same
> source as the cups-daemon package?
> 
> Does following command show the same BuildID ?

The lack of debug symbols in valgrind could possibly be this bug - the symptoms appear to be the same:

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=942614

My output from valgrind contained this:

Aug 25 09:49:17 samba-prn-01 valgrind[28088]: --28088-- WARNING: Serious error when reading debug info
Aug 25 09:49:17 samba-prn-01 valgrind[28088]: --28088-- When reading debug info from /usr/sbin/cupsd:
Aug 25 09:49:17 samba-prn-01 valgrind[28088]: --28088--    debuginfo section duplicates a section in the main ELF file

In which case a backport of valgrind would be dead handy. :-).

Ronny
-- 
Ronny Adsetts
Technical Director
Amazing Internet Ltd, London
t: +44 20 8977 8943
w: www.amazinginternet.com

Registered office: 85 Waldegrave Park, Twickenham, TW1 4TJ
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