[Bug other/67446] libiberty sha1.c:324 sanitizer runtime error: load of misaligned address 0x62f00011847e for type 'const sha1_uint32', which requires 4 byte alignment

[pinskia at gcc dot gnu.org]

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).