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Created attachment 504529 [details] Stack Trace Description of problem: When trying to connect to Kerberos Secure NFS, rpc.gssd fails when libgssglue segfaults. Kerberos Server is an Active Directory 2008 server. Version-Release number of selected component (if applicable): nfs-utils 1.1.2.3-7 Kerberos 1.9-9 How reproducible: Consistent from machine to machine with our configuration. Steps to Reproduce: 1. Setup a kerberos principal nfs/fqdn encrypted in des-cbc-md5 2. Try mount a kerberosized NFS share 3. Actual results: rpc.gssd service fails with the log messages: rpc.gssd[1526]: creating context using fsuid 0 (save_uid 0) kernel: rpc.gssd[1526]: segfault at 1 ip 00007fb739da17ae sp 00007ffff7035118 error 4 in libgssglue.so.1.0.0[7fb739d9e000+9000] Expected results: No errors and and able to browse the root directory of the NFS share Additional info: It worked without issue on RHEL 5.5 and earlier. Stack Trace is Attached
This request was evaluated by Red Hat Product Management for inclusion in the current release of Red Hat Enterprise Linux. Because the affected component is not scheduled to be updated in the current release, Red Hat is unfortunately unable to address this request at this time. Red Hat invites you to ask your support representative to propose this request, if appropriate and relevant, in the next release of Red Hat Enterprise Linux. If you would like it considered as an exception in the current release, please ask your support representative.
The following patch fixes the problem: commit 2e4a7e9b50a641dc8640a5dd911ee4a2f0b2c073 Author: Steve Dickson <steved> Date: Tue Apr 19 12:31:30 2011 -0400 rpc.svcgssd: Segmentation fault on error Commit 544ed73d introduced a regression that caused rpc.svcgssd to seg fault on "Wrong principal in request" errors in gss_accept_sec_context() Signed-off-by: Steve Dickson <steved> diff --git a/utils/gssd/gss_util.c b/utils/gssd/gss_util.c index ca27d61..0e327b0 100644 --- a/utils/gssd/gss_util.c +++ b/utils/gssd/gss_util.c @@ -252,7 +252,8 @@ display_status_2(char *m, u_int32_t major, u_int32_t minor, const gss_OID mech) if (major == GSS_S_CREDENTIALS_EXPIRED) msg_verbosity = 1; - printerr(msg_verbosity, "ERROR: GSS-API: error in %s(): %s (%s) - %s(%s)\n", + + printerr(msg_verbosity, "ERROR: GSS-API: error in %s(): %s (%s) - %s\n", m, gss_display_error(major), maj, min); if (maj_gss_buf.length != 0)
(In reply to comment #0) > Created attachment 504529 [details] > Stack Trace > > Description of problem: > When trying to connect to Kerberos Secure NFS, rpc.gssd fails when libgssglue > segfaults. Kerberos Server is an Active Directory 2008 server. > > Version-Release number of selected component (if applicable): > nfs-utils 1.1.2.3-7 > Kerberos 1.9-9 What version of libgssglue are you using?
libgssglue v 0.1 was used, but the issue was fixed with the nfs-utils 1.1.2.3-8 release in Bug 720479.
*** This bug has been marked as a duplicate of bug 720479 ***