I can reproduce this bug with sudo 1.6.9p10-1ubuntu3.8 and a user whose home directory does not exist. It appears to happen only when sudo does not prompt for a password. It happens on several servers with similar configuration, but not on another 8.04.4 server that doesn't use ldap.
abrody@cato:~$ getent passwd nobody nobody:x:65534:65534:nobody:/nonexistent:/bin/sh abrody@cato:~$ ls /nonexistent ls: cannot access /nonexistent: No such file or directory abrody@cato:~$ sudo -u nobody true [sudo] password for abrody: Creating directory '/nonexistent'. Creating directory '/nonexistent/web'. abrody@cato:~$ sudo rm -r /nonexistent/ abrody@cato:~$ sudo -u nobody true Segmentation fault abrody@cato:~$ # ltrace sudo -u nobody true [snip] free(0x629380) = <void> umask(022) = 022 pam_start(0x41970a, 0x6221d0, 0x61eae0, 0x61eaf8, 0x629380) = 0 pam_set_item(0x629380, 3, 0x621f20, 1, 0x629850) = 0 pam_set_item(0x629380, 2, 0x6221d0, 0, 0xfefefefefefefeff) = 0 pam_set_item(0x629380, 8, 0x629340, 49, 0x6246c0) = 0 pam_set_item(0x629380, 4, 0x621ee0, 0, 0xfefefefefefefeff) = 0 pam_setcred(0x629380, 2, 0x6295f6, 0, 0xfefefefefefefeff) = 0 pam_open_session(0x629380, 0, 0xfffffffe, 0, 1 <unfinished ...> malloc(16) = 0x6298c0 --- SIGSEGV (Segmentation fault) --- +++ killed by SIGSEGV +++ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/234727 Title: apt: segmentation fault [ubuntu 8.04] -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
