------------[ cut here ]------------ kernel BUG at net/core/skbuff.c:1690! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 2 PID: 25705 Comm: syz-executor.2 Not tainted 5.14.0-rc2-syzkaller #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 RIP: 0010:pskb_expand_head+0xb7d/0x1060 net/core/skbuff.c:1690 Code: 8d 75 ff e9 0b fe ff ff e8 d0 f0 61 fa 48 c7 c6 80 9b 89 8a 4c 89 f7 e8 d1 7f 94 fa 0f 0b e8 ba f0 61 fa 0f 0b e8 b3 f0 61 fa <0f> 0b e8 ac f0 61 fa 41 81 cc 00 00 02 00 e9 a1 f5 ff ff e8 9b f0 RSP: 0018:ffffc90001ae7338 EFLAGS: 00010212 RAX: 0000000000018fed RBX: ffff888022477400 RCX: ffffc90022b15000 RDX: 0000000000040000 RSI: ffffffff8712cdfd RDI: 0000000000000003 RBP: 00000000ffffffbb R08: 0000000000000001 R09: ffff8880224774df R10: ffffffff8712c352 R11: 0000000000000000 R12: 0000000000000a20 R13: 0000000000000002 R14: 0000000000000001 R15: 0000000000000000 FS: 00007fd7019b9700(0000) GS:ffff88802cc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020002038 CR3: 000000004c742000 CR4: 0000000000150ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __skb_pad+0x181/0x5f0 net/core/skbuff.c:1873 __skb_put_padto include/linux/skbuff.h:3322 [inline] skb_put_padto include/linux/skbuff.h:3341 [inline] eth_skb_pad include/linux/etherdevice.h:543 [inline] e1000_xmit_frame+0x2de3/0x4650 drivers/net/ethernet/intel/e1000/e1000_main.c:3125 __netdev_start_xmit include/linux/netdevice.h:4944 [inline] netdev_start_xmit include/linux/netdevice.h:4958 [inline] xmit_one net/core/dev.c:3659 [inline] dev_hard_start_xmit+0x1eb/0x920 net/core/dev.c:3675 sch_direct_xmit+0x19f/0xbb0 net/sched/sch_generic.c:342 __dev_xmit_skb net/core/dev.c:3886 [inline] __dev_queue_xmit+0x1493/0x3620 net/core/dev.c:4253 llc_sap_action_send_test_c+0x22e/0x2c0 net/llc/llc_s_ac.c:144 llc_exec_sap_trans_actions net/llc/llc_sap.c:153 [inline] llc_sap_next_state net/llc/llc_sap.c:182 [inline] llc_sap_state_process+0x22a/0x4f0 net/llc/llc_sap.c:209 llc_ui_sendmsg+0x998/0x1040 net/llc/af_llc.c:958 sock_sendmsg_nosec net/socket.c:703 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:723 ____sys_sendmsg+0x331/0x810 net/socket.c:2392 ___sys_sendmsg+0xf3/0x170 net/socket.c:2446 __sys_sendmmsg+0x195/0x470 net/socket.c:2532 __do_sys_sendmmsg net/socket.c:2561 [inline] __se_sys_sendmmsg net/socket.c:2558 [inline] __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2558 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665e9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fd7019b9188 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9 RDX: 03fffffffffffeed RSI: 0000000020001380 RDI: 0000000000000004 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffe944c4c0f R14: 00007fd7019b9300 R15: 0000000000022000 Modules linked in: ---[ end trace c69fe67b21a948d1 ]--- RIP: 0010:pskb_expand_head+0xb7d/0x1060 net/core/skbuff.c:1690 Code: 8d 75 ff e9 0b fe ff ff e8 d0 f0 61 fa 48 c7 c6 80 9b 89 8a 4c 89 f7 e8 d1 7f 94 fa 0f 0b e8 ba f0 61 fa 0f 0b e8 b3 f0 61 fa <0f> 0b e8 ac f0 61 fa 41 81 cc 00 00 02 00 e9 a1 f5 ff ff e8 9b f0 RSP: 0018:ffffc90001ae7338 EFLAGS: 00010212 RAX: 0000000000018fed RBX: ffff888022477400 RCX: ffffc90022b15000 RDX: 0000000000040000 RSI: ffffffff8712cdfd RDI: 0000000000000003 RBP: 00000000ffffffbb R08: 0000000000000001 R09: ffff8880224774df R10: ffffffff8712c352 R11: 0000000000000000 R12: 0000000000000a20 R13: 0000000000000002 R14: 0000000000000001 R15: 0000000000000000 FS: 00007fd7019b9700(0000) GS:ffff88802cc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020002038 CR3: 000000004c742000 CR4: 0000000000150ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400