https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67446
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to Mikhail Maltsev from comment #2) > BTW, a similar bug reproduces during GCC bootstrap with ubsan: > > /home/jenkins/workspace/ubsan-bootstrap/src/libiberty/md5.c:336:7: runtime > error: load of misaligned address 0x7fff91f9983a for type 'const > md5_uint32', which requires 4 byte alignment > 0x7fff91f9983a: note: pointer points here > 00 00 f4 48 00 00 00 00 00 00 0a 00 00 00 0e 00 00 00 0d 01 00 00 00 00 > 00 00 07 49 00 00 00 00 > ^ But those are two different issues. Also the md5 code explicitly checks to see if unaligned loads are supported though, it could be better about it. Please file this as a separate bug and also note both of these functions really come from glibc so you might want to file it there (but there might be another upstream code too).
