On 2017-12-03 17:34, Tim Rühsen wrote: > Package: libc6 > Version: 2.25-3 > Severity: normal > > Dear Maintainer, > > valgrinding a C code shows the following: > > ==27943== 4,096 bytes in 1 blocks are definitely lost in loss record 3 of 3 > ==27943== by 0x6C27715: getpwnam_r@@GLIBC_2.2.5 (getXXbyYY_r.c:314) > ==27943== by 0x4E8569F: rpl_glob (glob.c:781) > > That rpl_glob() is gnulib's glob replacement. The code there looks good. > And valgrind doesn't/didn't show this leak with previous (2.24 and lower) > versions of glibc. > > I can't currently provide you with a short reproducer (out of time here).
It's not something I can reproduce here, but getpwnam_r can behave very differently depending on the nss configuration your system. A small reproducer and the content of /etc/nsswitch.conf would definitely help. That said libc6 version 2.25-3 included security fixes and memory leak fixes for the glob function. Can you confirm the version you used, and if it's really 2.25-3 try with version 2.25-2 which is still in testing. Thanks, Aurelien -- Aurelien Jarno GPG: 4096R/1DDD8C9B aurel...@aurel32.net http://www.aurel32.net
