[Bug nscd/16760] New: Overlapping source and destination in calls to stpcpy from nscd

["siddhesh at redhat dot com" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=16760

            Bug ID: 16760
           Summary: Overlapping source and destination in calls to stpcpy
                    from nscd
           Product: glibc
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: nscd
          Assignee: siddhesh at redhat dot com
          Reporter: siddhesh at redhat dot com
                CC: drepper.fsp at gmail dot com

The nscd netgroups code uses stpcpy to copy over triplet values into the
buffer.  The source and destination addresses may overlap when all three values
are non-NULL and in the expected (host, user, domain) order.  This is caught by
valgrind as:

==3181== Source and destination overlap in stpcpy(0x19973b48, 0x19973b48)
==3181==    at 0x4C2F30A: stpcpy (in
/usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==3181==    by 0x12567A: addgetnetgrentX (string3.h:111)
==3181==    by 0x12722D: addgetnetgrent (netgroupcache.c:665)
==3181==    by 0x11114C: nscd_run_worker (connections.c:1338)
==3181==    by 0x4E3C102: start_thread (pthread_create.c:309)
==3181==    by 0x59B81AC: clone (clone.S:111)
==3181==

Fix coming up.

-- 
You are receiving this mail because:
You are on the CC list for the bug.