------------[ cut here ]------------ kernel BUG at net/core/skbuff.c:1689! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 28519 Comm: syz-executor.0 Not tainted 5.19.0-rc6-syzkaller-00111-gb047602d579b #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 RIP: 0010:pskb_expand_head+0xb3a/0x1070 net/core/skbuff.c:1689 Code: 8d 75 ff e9 16 fe ff ff e8 23 02 2d fa 48 c7 c6 20 ef d2 8a 4c 89 f7 e8 64 26 63 fa 0f 0b e8 0d 02 2d fa 0f 0b e8 06 02 2d fa <0f> 0b e8 ff 01 2d fa 41 81 cc 00 00 02 00 e9 e4 f5 ff ff e8 ee 01 RSP: 0018:ffffc90027e0f2c8 EFLAGS: 00010246 RAX: 0000000000040000 RBX: ffff88800019c140 RCX: ffffc90027302000 RDX: 0000000000040000 RSI: ffffffff874d687a RDI: 0000000000000005 RBP: 00000000ffffffbb R08: 0000000000000005 R09: 0000000000000001 R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000a20 R13: 0000000000000002 R14: 0000000000000001 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88802c800000(0063) knlGS:00000000f7f65b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 000000002000601c CR3: 0000000072dc4000 CR4: 0000000000152ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> __skb_pad+0x181/0x5f0 net/core/skbuff.c:1954 __skb_put_padto include/linux/skbuff.h:3707 [inline] skb_put_padto include/linux/skbuff.h:3726 [inline] eth_skb_pad include/linux/etherdevice.h:583 [inline] e1000_xmit_frame+0x2f3c/0x4a00 drivers/net/ethernet/intel/e1000/e1000_main.c:3126 __netdev_start_xmit include/linux/netdevice.h:4805 [inline] netdev_start_xmit include/linux/netdevice.h:4819 [inline] xmit_one net/core/dev.c:3590 [inline] dev_hard_start_xmit+0x188/0x880 net/core/dev.c:3606 sch_direct_xmit+0x19f/0xbe0 net/sched/sch_generic.c:342 __dev_xmit_skb net/core/dev.c:3817 [inline] __dev_queue_xmit+0x14a1/0x3900 net/core/dev.c:4221 dev_queue_xmit include/linux/netdevice.h:2994 [inline] llc_sap_action_send_test_c+0x227/0x2c0 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+0x22f/0x500 net/llc/llc_sap.c:209 llc_ui_sendmsg+0x9e9/0x10c0 net/llc/af_llc.c:982 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:734 ____sys_sendmsg+0x334/0x810 net/socket.c:2488 ___sys_sendmsg+0xf3/0x170 net/socket.c:2542 __sys_sendmmsg+0x297/0x470 net/socket.c:2621 __compat_sys_sendmmsg net/compat.c:361 [inline] __do_compat_sys_sendmmsg net/compat.c:368 [inline] __se_compat_sys_sendmmsg net/compat.c:365 [inline] __ia32_compat_sys_sendmmsg+0x9b/0x100 net/compat.c:365 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscall_32+0x65/0xf0 arch/x86/entry/common.c:178 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:203 entry_SYSENTER_compat_after_hwframe+0x70/0x82 RIP: 0023:0xf7f6a549 Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000f7f655cc EFLAGS: 00000296 ORIG_RAX: 0000000000000159 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000020001380 RDX: 00000000fffffeed RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:pskb_expand_head+0xb3a/0x1070 net/core/skbuff.c:1689 Code: 8d 75 ff e9 16 fe ff ff e8 23 02 2d fa 48 c7 c6 20 ef d2 8a 4c 89 f7 e8 64 26 63 fa 0f 0b e8 0d 02 2d fa 0f 0b e8 06 02 2d fa <0f> 0b e8 ff 01 2d fa 41 81 cc 00 00 02 00 e9 e4 f5 ff ff e8 ee 01 RSP: 0018:ffffc90027e0f2c8 EFLAGS: 00010246 RAX: 0000000000040000 RBX: ffff88800019c140 RCX: ffffc90027302000 RDX: 0000000000040000 RSI: ffffffff874d687a RDI: 0000000000000005 RBP: 00000000ffffffbb R08: 0000000000000005 R09: 0000000000000001 R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000a20 R13: 0000000000000002 R14: 0000000000000001 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88802c800000(0063) knlGS:00000000f7f65b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 000000002000601c CR3: 0000000072dc4000 CR4: 0000000000152ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 03 74 c0 01 add 0x1(%rax,%rax,8),%esi 4: 10 05 03 74 b8 01 adc %al,0x1b87403(%rip) # 0x1b8740d a: 10 06 adc %al,(%rsi) c: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi 10: 10 07 adc %al,(%rdi) 12: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi 16: 10 08 adc %cl,(%rax) 18: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi 1c: 00 00 add %al,(%rax) 1e: 00 00 add %al,(%rax) 20: 00 51 52 add %dl,0x52(%rcx) 23: 55 push %rbp 24: 89 e5 mov %esp,%ebp 26: 0f 34 sysenter 28: cd 80 int $0x80 * 2a: 5d pop %rbp <-- trapping instruction 2b: 5a pop %rdx 2c: 59 pop %rcx 2d: c3 retq 2e: 90 nop 2f: 90 nop 30: 90 nop 31: 90 nop 32: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi 39: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi