audit: type=1804 audit(1598272024.029:319): pid=13061 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op="invalid_pcr" cause="open_writers" comm="syz-executor.0" name="/root/syzkaller-testdir219358544/syzkaller.viw6nN/1552/bus" dev="sda1" ino=16691 res=1 TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. BUG: unable to handle kernel NULL pointer dereference at (null) IP: (null) PGD 91219067 P4D 91219067 PUD a9b13067 PMD 0 Oops: 0010 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 0 PID: 828 Comm: kworker/0:1 Not tainted 4.14.194-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: pencrypt padata_serial_worker task: ffff8880a07360c0 task.stack: ffff888063828000 RIP: 0010: (null) RSP: 0018:ffff88806382fcd0 EFLAGS: 00010296 RAX: 0000000000000000 RBX: ffff88808d9e47d0 RCX: 1ffff1100c705fa2 RDX: 1ffff11011b3c8f2 RSI: 0000000000000000 RDI: ffff88808d9e4780 RBP: dffffc0000000000 R08: ffffe8ffffc25360 R09: 0000000000000002 R10: 0000000000000000 R11: ffff8880a07360c0 R12: 0000000000000001 R13: ffff88806382fd10 R14: ffff888219185100 R15: ffff88808d9e47d8 FS: 0000000000000000(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000008ee04000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: padata_serial_worker+0x232/0x3e0 kernel/padata.c:307 process_one_work+0x793/0x14a0 kernel/workqueue.c:2116 worker_thread+0x5cc/0xff0 kernel/workqueue.c:2250 kthread+0x30d/0x420 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 Code: Bad RIP value. RIP: (null) RSP: ffff88806382fcd0 CR2: 0000000000000000 ---[ end trace 2cc34608c2fe4ac4 ]---