Re: [syzbot] [mm?] general protection fault in __hugetlb_zap_begin

From: syzbot
Date: Tue Jan 09 2024 - 13:17:16 EST


syzbot suspects this issue was fixed by commit:

commit 187da0f8250aa94bd96266096aef6f694e0b4cd2
Author: Mike Kravetz <mike.kravetz@xxxxxxxxxx>
Date: Tue Nov 14 01:20:33 2023 +0000

hugetlb: fix null-ptr-deref in hugetlb_vma_lock_write

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=17f5054de80000
start commit: 9b6de136b5f0 Merge tag 'loongarch-fixes-6.7-1' of git://gi..
git tree: upstream
kernel config: https://syzkaller.appspot.com/x/.config?x=52c9552def2a0fdd
dashboard link: https://syzkaller.appspot.com/bug?extid=ec9435c038e451be48ff
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=150a257ce80000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13481ff0e80000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: hugetlb: fix null-ptr-deref in hugetlb_vma_lock_write

For information about bisection process see: https://goo.gl/tpsmEJ#bisection