syzbot suspects this issue was fixed by commit:
commit 68674f94ffc9dddc45e7733963ecc35c5eda9efd
Author: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Date: Sat Apr 15 18:47:06 2023 +0000
x86: don't use REP_GOOD or ERMS for small memory copies
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=12de3271280000
start commit: ffe78bbd5121 Merge tag 'xtensa-20230327' of https://github..
git tree: upstream
kernel config: https://syzkaller.appspot.com/x/.config?x=9c35b3803e5ad668
dashboard link: https://syzkaller.appspot.com/bug?extid=a98f21ebda0a437b04d7
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=139dca3ec80000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15a55a35c80000
If the result looks correct, please mark the issue as fixed by replying with:
#syz fix: x86: don't use REP_GOOD or ERMS for small memory copies
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
