------------[ cut here ]------------ kernel BUG at net/core/dev.c:6961! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 25089 Comm: syz-executor.0 Not tainted 5.15.0-syzkaller #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 RIP: 0010:napi_enable+0x1a1/0x210 net/core/dev.c:6961 Code: 00 00 48 89 44 24 40 e8 ad 54 9e fa 48 8b 5c 24 40 31 ff 83 e3 01 89 de e8 dc 3e 58 fa 84 db 0f 85 ed fe ff ff e8 af 36 58 fa <0f> 0b e8 a8 36 58 fa 48 8b 4c 24 10 48 b8 00 00 00 00 00 fc ff df RSP: 0018:ffffc90003676cd0 EFLAGS: 00010246 RAX: 0000000000040000 RBX: 0000000000000000 RCX: ffffc9000d1e4000 RDX: 0000000000040000 RSI: ffffffff871ec801 RDI: 0000000000000003 RBP: ffff88801a3e8f80 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff871ec7f4 R11: 0000000000000000 R12: ffff88801a3e8f70 R13: dffffc0000000000 R14: ffffed100347d1f0 R15: ffff88801a3e8c80 FS: 00007f036201f700(0000) GS:ffff88802ca00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1a90da0e14 CR3: 00000000646ab000 CR4: 0000000000150ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: e1000_up+0x39/0x130 drivers/net/ethernet/intel/e1000/e1000_main.c:394 e1000_change_mtu+0x23e/0x4b0 drivers/net/ethernet/intel/e1000/e1000_main.c:3576 __dev_set_mtu net/core/dev.c:8876 [inline] dev_set_mtu_ext+0x352/0x5b0 net/core/dev.c:8929 do_setlink+0x5e4/0x3970 net/core/rtnetlink.c:2682 rtnl_group_changelink net/core/rtnetlink.c:3242 [inline] __rtnl_newlink+0xc06/0x1750 net/core/rtnetlink.c:3396 rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3506 rtnetlink_rcv_msg+0x413/0xb80 net/core/rtnetlink.c:5571 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2491 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x86d/0xda0 net/netlink/af_netlink.c:1916 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:724 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2409 ___sys_sendmsg+0xf3/0x170 net/socket.c:2463 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2492 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: 0033:0x7f0364aa9ae9 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:00007f036201f188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f0364bbcf60 RCX: 00007f0364aa9ae9 RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000007 RBP: 00007f0364b03f25 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe0688406f R14: 00007f036201f300 R15: 0000000000022000 Modules linked in: ---[ end trace 1e91d240ccbb53b6 ]--- RIP: 0010:napi_enable+0x1a1/0x210 net/core/dev.c:6961 Code: 00 00 48 89 44 24 40 e8 ad 54 9e fa 48 8b 5c 24 40 31 ff 83 e3 01 89 de e8 dc 3e 58 fa 84 db 0f 85 ed fe ff ff e8 af 36 58 fa <0f> 0b e8 a8 36 58 fa 48 8b 4c 24 10 48 b8 00 00 00 00 00 fc ff df RSP: 0018:ffffc90003676cd0 EFLAGS: 00010246 RAX: 0000000000040000 RBX: 0000000000000000 RCX: ffffc9000d1e4000 RDX: 0000000000040000 RSI: ffffffff871ec801 RDI: 0000000000000003 RBP: ffff88801a3e8f80 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff871ec7f4 R11: 0000000000000000 R12: ffff88801a3e8f70 R13: dffffc0000000000 R14: ffffed100347d1f0 R15: ffff88801a3e8c80 FS: 00007f036201f700(0000) GS:ffff88802ca00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1a90da0e14 CR3: 00000000646ab000 CR4: 0000000000150ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400