netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'. netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'. BUG: unable to handle kernel NULL pointer dereference at (null) IP: (null) PGD 9e286067 P4D 9e286067 PUD a0605067 PMD 0 Oops: 0010 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 0 PID: 11986 Comm: kworker/0:5 Not tainted 4.14.290-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 Workqueue: pencrypt padata_serial_worker task: ffff88809d63c0c0 task.stack: ffff8880531b0000 RIP: 0010: (null) RSP: 0018:ffff8880531b7cd0 EFLAGS: 00010296 RAX: 0000000000000000 RBX: ffff88809c385190 RCX: 1ffff1100a636fa2 RDX: 1ffff11013870a2a RSI: 0000000000000000 RDI: ffff88809c385140 RBP: dffffc0000000000 R08: ffffe8ffffc24370 R09: 0000000000000002 R10: 0000000000000000 R11: ffff88809d63c0c0 R12: 0000000000000001 R13: ffff8880531b7d10 R14: ffff8880b0815b00 R15: ffff88809c385198 FS: 0000000000000000(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000009748a000 CR4: 00000000003406f0 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:2117 worker_thread+0x5cc/0xff0 kernel/workqueue.c:2251 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: ffff8880531b7cd0 CR2: 0000000000000000 ---[ end trace eb3d0254b731df9a ]---