Hej,
I am noticing an fd leak with the /usr/lib/sssd/sssd_pam helper program (affected versions: 1.4.1--1.5.11). As is usual with weird bugs, this happens on one machine while it does not on another, but it at least it is reproducible on the one :) What I observe is that for every authentication attempt (may either fail or success), an fd is left behind:: 17:25 mailsrv:/proc/31491/fd # ls -l [...] lrwx------ 1 root root 64 Jul 28 17:25 42 -> socket:[228511] lrwx------ 1 root root 64 Jul 28 17:25 43 -> socket:[227514] lrwx------ 1 root root 64 Jul 28 17:25 44 -> socket:[228537] lrwx------ 1 root root 64 Jul 28 17:21 5 -> anon_inode:[eventpoll] lrwx------ 1 root root 64 Jul 28 17:21 6 -> anon_inode:[eventpoll] lr-x------ 1 root root 64 Jul 28 17:21 7 -> pipe:[213086] lrwx------ 1 root root 64 Jul 28 17:21 76 -> socket:[220069] l-wx------ 1 root root 64 Jul 28 17:21 8 -> pipe:[213086] lrwx------ 1 root root 64 Jul 28 17:21 88 -> socket:[221781] lrwx------ 1 root root 64 Jul 28 17:21 9 -> anon_inode:[eventpoll] 17:25 mailsrv:/proc/31491/fd # su - jengelh 17:25 mailsrv:~ > su - jengelh Passord: 17:25 mailsrv:~ > logout 17:25 mailsrv:~ > logout 17:25 mailsrv:/proc/31491/fd # ls -l [...] lrwx------ 1 root root 64 Jul 28 17:25 42 -> socket:[228511] lrwx------ 1 root root 64 Jul 28 17:25 43 -> socket:[227514] lrwx------ 1 root root 64 Jul 28 17:25 44 -> socket:[228537] lrwx------ 1 root root 64 Jul 28 17:25 46 -> socket:[227688] [...] Furthermore, this new socket has no complementary process to have the other end of socket:[227688] open (anymore): 17:30 mailsrv:/proc # ls -l */fd/* | grep socket:.227688 ls: cannot access 7175/fd/3: No such file or directory ls: cannot access self/fd/255: No such file or directory lrwx------ 1 root root 64 Jul 28 17:25 31491/fd/46 -> socket:[227688] lsof(8) tells us the name part of the socket for reference: sssd_pam 31491 root 46u unix 0xffff88001083a840 0t0 227688 /var/lib/sss/pipes/private/pam _______________________________________________ sssd-devel mailing list sssd-devel@lists.fedorahosted.org https://fedorahosted.org/mailman/listinfo/sssd-devel
