Public bug reported:
After update, all users of libpam-krb5 (login, gdm, etc) fail with a
segfault in pam_krb5.so as logged in syslog below:
May 12 09:36:14 peregrine kernel: [ 125.678116] login[2003]: segfault
at 8 ip 006739ad sp bfc09cd0 error 4 in pam_krb5.so[66e000+c000]
downloaded latest git source for libpam-krb5 and confirmed problem
appears to exist there as well:
matt@peregrine:~/foo/pam-krb5$ make check
make tests/fakepam/libfakepam.a tests/tap/libtap.a tests/runtests
tests/module/alt-auth-t tests/module/bad-authtok-t tests/module/basic-t
tests/module/cache-cleanup-t tests/module/cache-t tests/module/expired-t
tests/module/no-cache-t tests/module/password-t tests/module/realm-t
tests/module/stacked-t tests/pam-util/args-t tests/pam-util/fakepam-t
tests/pam-util/logging-t tests/pam-util/options-t tests/pam-util/vector-t
tests/portable/asprintf-t tests/portable/mkstemp-t tests/portable/snprintf-t
tests/portable/strlcat-t tests/portable/strlcpy-t tests/portable/strndup-t
make[1]: Entering directory `/home/matt/foo/pam-krb5'
make[1]: `tests/tap/libtap.a' is up to date.
make[1]: `tests/runtests' is up to date.
make[1]: `tests/module/alt-auth-t' is up to date.
make[1]: `tests/module/bad-authtok-t' is up to date.
make[1]: `tests/module/basic-t' is up to date.
make[1]: `tests/module/cache-cleanup-t' is up to date.
make[1]: `tests/module/cache-t' is up to date.
make[1]: `tests/module/expired-t' is up to date.
make[1]: `tests/module/no-cache-t' is up to date.
make[1]: `tests/module/password-t' is up to date.
make[1]: `tests/module/realm-t' is up to date.
make[1]: `tests/module/stacked-t' is up to date.
make[1]: `tests/pam-util/args-t' is up to date.
make[1]: `tests/pam-util/fakepam-t' is up to date.
make[1]: `tests/pam-util/logging-t' is up to date.
make[1]: `tests/pam-util/options-t' is up to date.
make[1]: `tests/pam-util/vector-t' is up to date.
make[1]: `tests/portable/asprintf-t' is up to date.
make[1]: `tests/portable/mkstemp-t' is up to date.
make[1]: `tests/portable/snprintf-t' is up to date.
make[1]: `tests/portable/strlcat-t' is up to date.
make[1]: `tests/portable/strlcpy-t' is up to date.
make[1]: `tests/portable/strndup-t' is up to date.
make[1]: Leaving directory `/home/matt/foo/pam-krb5'
make check-local
make[1]: Entering directory `/home/matt/foo/pam-krb5'
cd tests && ./runtests /home/matt/foo/pam-krb5/tests/TESTS
Running all tests listed in TESTS. If any tests fail, run the failing
test program with runtests -o to see more details.
module/alt-auth.........skipped (Kerberos tests not configured)
module/bad-authtok......skipped (Kerberos tests not configured)
module/basic............ABORTED (killed by signal 11, core dumped)
module/cache............skipped (Kerberos tests not configured)
module/cache-cleanup....skipped (Kerberos tests not configured)
module/expired..........skipped (Kerberos tests not configured)
module/no-cache.........skipped (Kerberos tests not configured)
module/password.........skipped (Kerberos tests not configured)
module/realm............skipped (Kerberos tests not configured)
module/stacked..........skipped (Kerberos tests not configured)
pam-util/args...........MISSED 2-11; FAILED 1 (killed by signal 11, core dumped)
pam-util/fakepam........ok
pam-util/logging........MISSED 3-27; FAILED 1-2 (killed by signal 11, core
dumped)
pam-util/options........ABORTED (cannot create PAM argument struct: Success)
pam-util/vector.........ok
portable/asprintf.......ok
portable/mkstemp........ok
portable/snprintf.......ok
portable/strlcat........ok
portable/strlcpy........ok
portable/strndup........ok
Failed Set Fail/Total (%) Skip Stat Failing Tests
-------------------------- -------------- ---- ---- ------------------------
module/basic 0/0 0% 0 -- aborted
pam-util/args 11/11 100% 0 -- 1-11
pam-util/logging 27/27 100% 0 -- 1-27
pam-util/options 0/0 0% 0 1 aborted
Aborted 2 test sets, passed 1200/1238 tests, 9 tests skipped.
Files=21, Tests=1238, 1.10 seconds (0.00 usr + 0.00 sys = 0.00 CPU)
make[1]: *** [check-local] Error 1
make[1]: Leaving directory `/home/matt/foo/pam-krb5'
make: *** [check-am] Error 2
workaround:
boot to recovery, (need a root passwd)
apt-get remove libpam-krb5
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: libpam-krb5 (not installed)
ProcVersionSignature: Ubuntu 3.2.0-24.37-generic 3.2.14
Uname: Linux 3.2.0-24-generic i686
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu7
Architecture: i386
Date: Sat May 12 14:54:16 2012
ProcEnviron:
SHELL=/bin/bash
PATH=(custom, user)
LANG=en_US.UTF-8
LANGUAGE=en_US:en
SourcePackage: libpam-krb5
UpgradeStatus: Upgraded to precise on 2012-05-12 (0 days ago)
** Affects: libpam-krb5 (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386 precise
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https://bugs.launchpad.net/bugs/998525
Title:
libpam-krb5 segfaults consistently after upgrade to 12.04
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