Re: KASAN: use-after-free Read in __schedule (2)

From: syzbot
Date: Thu Nov 07 2019 - 08:42:21 EST


syzbot suspects this bug was fixed by commit:

commit 26b471c7e2f7befd0f59c35b257749ca57e0ed70
Author: Liran Alon <liran.alon@xxxxxxxxxx>
Date: Sun Sep 16 11:28:20 2018 +0000

KVM: nVMX: Fix bad cleanup on error of get/set nested state IOCTLs

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=14830572600000
start commit: 234b69e3 ocfs2: fix ocfs2 read block panic
git tree: upstream
kernel config: https://syzkaller.appspot.com/x/.config?x=5fa12be50bca08d8
dashboard link: https://syzkaller.appspot.com/bug?extid=ceded3495a1d59f2d244
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1634bbae400000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1728324e400000

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

#syz fix: KVM: nVMX: Fix bad cleanup on error of get/set nested state IOCTLs

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