Hello bpf maintainers/developers, This is a 31-day syzbot report for the bpf subsystem. All related reports/information can be found at: https://syzkaller.appspot.com/upstream/s/bpf During the period, 3 new issues were detected and 2 were fixed. In total, 12 issues are still open and 207 have been fixed so far. Some of the still happening issues: Ref Crashes Repro Title <1> 175 No KMSAN: uninit-value in bpf_prog_run_generic_xdp https://syzkaller.appspot.com/bug?extid=0e6ddb1ef80986bdfe64 <2> 94 Yes KMSAN: uninit-value in ___bpf_prog_run (4) https://syzkaller.appspot.com/bug?extid=853242d9c9917165d791 <3> 43 Yes BUG: unable to handle kernel NULL pointer dereference in sk_msg_recvmsg https://syzkaller.appspot.com/bug?extid=84f695756ed0c4bb3aba <4> 4 Yes KMSAN: uninit-value in strnchr https://syzkaller.appspot.com/bug?extid=9b8be5e35747291236c8 <5> 3 Yes INFO: rcu detected stall in sys_unshare (9) https://syzkaller.appspot.com/bug?extid=872bccd9a68c6ba47718 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. To disable reminders for individual bugs, reply with the following command: #syz set <Ref> no-reminders To change bug's subsystems, reply with: #syz set <Ref> subsystems: new-subsystem You may send multiple commands in a single email message.