syzbot has bisected this bug to: commit 0609ae011deb41c9629b7f5fd626dfa1ac9d16b0 Author: Daniel Axtens <dja@xxxxxxxxxx> Date: Sun Dec 1 01:55:00 2019 +0000 x86/kasan: support KASAN_VMALLOC bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=10c70f36e00000 start commit: b3c424eb sch_cake: Add missing NLA policy entry TCA_CAKE_S.. git tree: bpf final crash: https://syzkaller.appspot.com/x/report.txt?x=12c70f36e00000 console output: https://syzkaller.appspot.com/x/log.txt?x=14c70f36e00000 kernel config: https://syzkaller.appspot.com/x/.config?x=7d8ab2e0e09c2a82 dashboard link: https://syzkaller.appspot.com/bug?extid=59b7daa4315e07a994f1 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=140df641e00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=147dcc2ae00000 Reported-by: syzbot+59b7daa4315e07a994f1@xxxxxxxxxxxxxxxxxxxxxxxxx Fixes: 0609ae011deb ("x86/kasan: support KASAN_VMALLOC") For information about bisection process see: https://goo.gl/tpsmEJ#bisection