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xiolog_ancillary_socket() in xio-socket.c appends bytes to the valbuff buffer without length checking here:
sprintf(strchr(valbuff, '\0')-1/*del \n*/, ", %06ld usecs", (long)tv->tv_usec);
I think this is just hardening.
Upstream fix:
commit dfdeaa483663904399b279b21fd91556e77f79e0
Author: Gerhard Rieger <gerhard>
Date: Sat Jan 25 10:35:21 2014 +0100
Red Hat issue 1022070: missing length check in xiolog_ancillary_socket()
xiolog_ancillary_socket() in xio-socket.c appends bytes to the valbuff buffer without length checking here: sprintf(strchr(valbuff, '\0')-1/*del \n*/, ", %06ld usecs", (long)tv->tv_usec); I think this is just hardening.