------------[ cut here ]------------ kernel BUG at lib/list_debug.c:29! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 23464 Comm: syz-executor.4 Not tainted 5.15.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__list_add_valid.cold+0x26/0x3c lib/list_debug.c:29 Code: 3d 1f db fa 4c 89 e1 48 c7 c7 20 36 e4 89 e8 7a 4c f2 ff 0f 0b 48 89 f2 4c 89 e1 48 89 ee 48 c7 c7 60 37 e4 89 e8 63 4c f2 ff <0f> 0b 48 89 f1 48 c7 c7 e0 36 e4 89 4c 89 e6 e8 4f 4c f2 ff 0f 0b RSP: 0018:ffffc9000304f8c8 EFLAGS: 00010282 RAX: 0000000000000058 RBX: 0000000000000040 RCX: 0000000000000000 RDX: 0000000000040000 RSI: ffffffff815e9388 RDI: fffff52000609f0b RBP: ffff888025ed6160 R08: 0000000000000058 R09: 0000000000000000 R10: ffffffff815e312e R11: 0000000000000000 R12: ffff888025ed6160 R13: ffff888025ed6000 R14: ffff888025ed6160 R15: ffff888025ed6160 FS: 00007fe53633e700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd57ea53a80 CR3: 000000004b034000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __list_add_rcu include/linux/rculist.h:79 [inline] list_add_rcu include/linux/rculist.h:106 [inline] netif_napi_add+0x3fd/0x9c0 net/core/dev.c:6889 veth_enable_xdp_range+0x1b1/0x300 drivers/net/veth.c:1009 veth_enable_xdp+0x2a5/0x620 drivers/net/veth.c:1063 veth_xdp_set drivers/net/veth.c:1483 [inline] veth_xdp+0x4d4/0x780 drivers/net/veth.c:1523 dev_xdp_install+0xd5/0x270 net/core/dev.c:9365 dev_xdp_attach+0x83d/0x1010 net/core/dev.c:9513 dev_xdp_attach_link net/core/dev.c:9532 [inline] bpf_xdp_link_attach+0x262/0x410 net/core/dev.c:9695 link_create kernel/bpf/syscall.c:4258 [inline] __sys_bpf+0x549c/0x5df0 kernel/bpf/syscall.c:4657 __do_sys_bpf kernel/bpf/syscall.c:4691 [inline] __se_sys_bpf kernel/bpf/syscall.c:4689 [inline] __x64_sys_bpf+0x75/0xb0 kernel/bpf/syscall.c:4689 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: 0033:0x7fe538de9a39 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:00007fe53633e188 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007fe538eed020 RCX: 00007fe538de9a39 RDX: 0000000000000040 RSI: 0000000020000240 RDI: 000000000000001c RBP: 00007fe538e43c5f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcc6986d5f R14: 00007fe53633e300 R15: 0000000000022000 Modules linked in: ---[ end trace 7633b1406263b15e ]--- RIP: 0010:__list_add_valid.cold+0x26/0x3c lib/list_debug.c:29 Code: 3d 1f db fa 4c 89 e1 48 c7 c7 20 36 e4 89 e8 7a 4c f2 ff 0f 0b 48 89 f2 4c 89 e1 48 89 ee 48 c7 c7 60 37 e4 89 e8 63 4c f2 ff <0f> 0b 48 89 f1 48 c7 c7 e0 36 e4 89 4c 89 e6 e8 4f 4c f2 ff 0f 0b RSP: 0018:ffffc9000304f8c8 EFLAGS: 00010282 RAX: 0000000000000058 RBX: 0000000000000040 RCX: 0000000000000000 RDX: 0000000000040000 RSI: ffffffff815e9388 RDI: fffff52000609f0b RBP: ffff888025ed6160 R08: 0000000000000058 R09: 0000000000000000 R10: ffffffff815e312e R11: 0000000000000000 R12: ffff888025ed6160 R13: ffff888025ed6000 R14: ffff888025ed6160 R15: ffff888025ed6160 FS: 00007fe53633e700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f553dfb23a4 CR3: 000000004b034000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400