>>> On 05.04.17 at 19:53, <andrew.coop...@citrix.com> wrote: > For control-flow changes, the emulator needs to perform a zero-length > instruction fetch at the target offset. It also passes NULL for the > destination buffer, as there is no instruction stream to collect. > > This trips up UBSAN when passed to memcpy(), as passing NULL is undefined > behaviour per the C spec (irrespective of passing a size of 0). > > Special case these fetches in fuzz_insn_fetch() before reaching data_read(). > > Signed-off-by: Andrew Cooper <andrew.coop...@citrix.com> > Acked-by: George Dunlap <george.dun...@citrix.com>
Reviewed-by: Jan Beulich <jbeul...@suse.com> _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org https://lists.xen.org/xen-devel
