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Bug 1595938 - rpc.gssd segv in gssd_read_service_info
Summary: rpc.gssd segv in gssd_read_service_info
Alias: None
Product: Fedora
Classification: Fedora
Component: nfs-utils
Version: rawhide
Hardware: Unspecified
OS: Unspecified
Target Milestone: ---
Assignee: Steve Dickson
QA Contact: Fedora Extras Quality Assurance
Depends On:
TreeView+ depends on / blocked
Reported: 2018-06-27 20:45 UTC by Jason Tibbitts
Modified: 2018-06-27 23:35 UTC (History)
3 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Last Closed: 2018-06-27 23:35:47 UTC

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Description Jason Tibbitts 2018-06-27 20:45:42 UTC
Just restarted my rawhide test VM and found that I can't mount kerberized NFS4 shares (specifically, my home directory) because rpc.gssd seems to crash at startup.  Unfortunately it's been a while since that VM was last booted so I can't point at any obvious change.

I installed all of the requested debuginfo and gdb gave me the following:

Core was generated by `/usr/sbin/rpc.gssd'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x000055b2f2dbb274 in gssd_read_service_info (clp=0x55b2f308ae80, dirfd=10) at gssd.c:313
313             if (strcmp(protoname, "rdma") == 0) {
(gdb) bt
#0  0x000055b2f2dbb274 in gssd_read_service_info (clp=0x55b2f308ae80, dirfd=10) at gssd.c:313
#1  gssd_scan_clnt (clp=0x55b2f308ae80) at gssd.c:553
#2  0x000055b2f2dbb7e6 in gssd_create_clnt (name=<optimized out>, tdi=0x55b2f308cb60) at gssd.c:570
#3  gssd_scan_topdir (name=<optimized out>) at gssd.c:640
#4  gssd_scan () at gssd.c:674
#5  0x000055b2f2db97e8 in main (argc=<optimized out>, argv=0x7ffe7dc6b328) at gssd.c:1043

This machine is running:


Comment 1 Jason Tibbitts 2018-06-27 20:49:21 UTC
I suspect this will be fixed by [PATCH] Revert "gssd.c: Remomved a couple of warning errors" which was posted to linux-nfs 3.5 hours ago.

Comment 2 Jason Tibbitts 2018-06-27 23:35:47 UTC
I found that the patch was also committed to rawhide, so I built nfs-utils-2.3.2-1.rc2 in mock and it's working fine.

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