syzbot has bisected this issue to: commit 6082b6c328b5486da2b356eae94b8b83c98b5565 Author: Alexei Starovoitov <ast@xxxxxxxxxx> Date: Fri Mar 8 01:08:03 2024 +0000 bpf: Recognize addr_space_cast instruction in the verifier. bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=101f5ac9180000 start commit: ddb2ffdc474a libbpf: Define MFD_CLOEXEC if not available git tree: bpf final oops: https://syzkaller.appspot.com/x/report.txt?x=121f5ac9180000 console output: https://syzkaller.appspot.com/x/log.txt?x=141f5ac9180000 kernel config: https://syzkaller.appspot.com/x/.config?x=6fb1be60a193d440 dashboard link: https://syzkaller.appspot.com/bug?extid=ba82760c63ba37799f70 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=115671f1180000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14f14e31180000 Reported-by: syzbot+ba82760c63ba37799f70@xxxxxxxxxxxxxxxxxxxxxxxxx Fixes: 6082b6c328b5 ("bpf: Recognize addr_space_cast instruction in the verifier.") For information about bisection process see: https://goo.gl/tpsmEJ#bisection