netlink: 20 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 20 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 20 bytes leftover after parsing attributes in process `syz-executor.4'. ------------[ cut here ]------------ kernel BUG at drivers/vhost/vhost.c:2247! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 12717 Comm: vhost-12714 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 RIP: 0010:vhost_get_vq_desc+0x1d52/0x22c0 drivers/vhost/vhost.c:2247 Code: 00 00 00 48 c7 c6 80 20 3d 89 48 c7 c7 b0 4b 22 8b 48 89 ca 48 c1 e1 04 48 01 d9 e8 38 06 60 fd e9 74 ff ff ff e8 6e 0e 3b fb <0f> 0b e8 67 0e 3b fb 44 89 e2 b9 10 00 00 00 48 c7 c6 80 1e 3d 89 RSP: 0018:ffff88808f86fb30 EFLAGS: 00010293 RAX: ffff88804d8ee3c0 RBX: 0000000000000001 RCX: ffffffff862767f7 RDX: 0000000000000000 RSI: ffffffff86277702 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000400 R09: 0000000000000000 R10: 0000000000000003 R11: 0000000000000000 R12: 000000000000008b R13: 0000000000000001 R14: dffffc0000000000 R15: ffff88804996f6a8 FS: 0000000000000000(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2fc24000 CR3: 000000009e957000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: vhost_vsock_handle_tx_kick+0x202/0xa30 drivers/vhost/vsock.c:460 vhost_worker+0x293/0x480 drivers/vhost/vhost.c:362 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Modules linked in: ---[ end trace 5a41d81d8eb779a4 ]--- RIP: 0010:vhost_get_vq_desc+0x1d52/0x22c0 drivers/vhost/vhost.c:2247 Code: 00 00 00 48 c7 c6 80 20 3d 89 48 c7 c7 b0 4b 22 8b 48 89 ca 48 c1 e1 04 48 01 d9 e8 38 06 60 fd e9 74 ff ff ff e8 6e 0e 3b fb <0f> 0b e8 67 0e 3b fb 44 89 e2 b9 10 00 00 00 48 c7 c6 80 1e 3d 89 RSP: 0018:ffff88808f86fb30 EFLAGS: 00010293 RAX: ffff88804d8ee3c0 RBX: 0000000000000001 RCX: ffffffff862767f7 RDX: 0000000000000000 RSI: ffffffff86277702 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000400 R09: 0000000000000000 R10: 0000000000000003 R11: 0000000000000000 R12: 000000000000008b R13: 0000000000000001 R14: dffffc0000000000 R15: ffff88804996f6a8 FS: 0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1d9f34e2e0 CR3: 000000009e957000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400