------------[ cut here ]------------ WARNING: CPU: 3 PID: 11075 at net/core/skbuff.c:1216 __sk_skb_reason_drop net/core/skbuff.c:1216 [inline] WARNING: CPU: 3 PID: 11075 at net/core/skbuff.c:1216 sk_skb_reason_drop+0x97/0x1a0 net/core/skbuff.c:1241 Modules linked in: CPU: 3 UID: 0 PID: 11075 Comm: syz.3.1280 Not tainted 6.13.0-rc2-syzkaller-00018-g7cb1b4663150 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:__sk_skb_reason_drop net/core/skbuff.c:1216 [inline] RIP: 0010:sk_skb_reason_drop+0x97/0x1a0 net/core/skbuff.c:1241 Code: 5d 41 5c 41 5d 41 5e e9 97 c4 a0 f8 e8 92 c4 a0 f8 31 ff 44 89 e6 e8 c8 c6 a0 f8 45 85 e4 0f 85 b2 00 00 00 e8 7a c4 a0 f8 90 <0f> 0b 90 e8 71 c4 a0 f8 44 89 e6 bf 01 00 00 00 e8 a4 c6 a0 f8 41 RSP: 0018:ffffc90007d67228 EFLAGS: 00010287 RAX: 0000000000008ca5 RBX: ffff88804b81d180 RCX: ffffc9000c8b3000 RDX: 0000000000080000 RSI: ffffffff88f87976 RDI: 0000000000000007 RBP: 000000000000ffff R08: 0000000000000007 R09: 0000000000000003 R10: 000000000000ffff R11: 0000000000000002 R12: 00000000ffffffea R13: 0000000000000000 R14: ffff88804b81d264 R15: ffff88804b81d1d8 FS: 0000000000000000(0000) GS:ffff88802b700000(0063) knlGS:00000000f5106b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000006efc4000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kfree_skb_reason include/linux/skbuff.h:1263 [inline] ip_rcv_finish_core.constprop.0+0x11d2/0x2290 net/ipv4/ip_input.c:424 ip_list_rcv_finish.constprop.0+0x1be/0x720 net/ipv4/ip_input.c:610 ip_sublist_rcv net/ipv4/ip_input.c:636 [inline] ip_list_rcv+0x339/0x450 net/ipv4/ip_input.c:670 __netif_receive_skb_list_ptype net/core/dev.c:5715 [inline] __netif_receive_skb_list_core+0x755/0x950 net/core/dev.c:5762 __netif_receive_skb_list net/core/dev.c:5814 [inline] netif_receive_skb_list_internal+0x753/0xdb0 net/core/dev.c:5905 netif_receive_skb_list net/core/dev.c:5957 [inline] netif_receive_skb_list+0x4d/0x4b0 net/core/dev.c:5947 xdp_recv_frames net/bpf/test_run.c:280 [inline] xdp_test_run_batch.constprop.0+0x1710/0x1d70 net/bpf/test_run.c:361 bpf_test_run_xdp_live+0x365/0x500 net/bpf/test_run.c:390 bpf_prog_test_run_xdp+0x827/0x1580 net/bpf/test_run.c:1318 bpf_prog_test_run kernel/bpf/syscall.c:4402 [inline] __sys_bpf+0x1921/0x57a0 kernel/bpf/syscall.c:5808 __do_sys_bpf kernel/bpf/syscall.c:5897 [inline] __se_sys_bpf kernel/bpf/syscall.c:5895 [inline] __ia32_sys_bpf+0x76/0xe0 kernel/bpf/syscall.c:5895 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0x73/0x120 arch/x86/entry/common.c:386 do_fast_syscall_32+0x32/0x80 arch/x86/entry/common.c:411 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf7f97579 Code: 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 00 00 00 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:00000000f510657c EFLAGS: 00000292 ORIG_RAX: 0000000000000165 RAX: ffffffffffffffda RBX: 000000000000000a RCX: 0000000020000600 RDX: 0000000000000048 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: 10 06 adc %al,(%rsi) 2: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi 6: 10 07 adc %al,(%rdi) 8: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi c: 10 08 adc %cl,(%rax) e: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi 1e: 00 51 52 add %dl,0x52(%rcx) 21: 55 push %rbp 22: 89 e5 mov %esp,%ebp 24: 0f 34 sysenter 26: cd 80 int $0x80 * 28: 5d pop %rbp <-- trapping instruction 29: 5a pop %rdx 2a: 59 pop %rcx 2b: c3 ret 2c: 90 nop 2d: 90 nop 2e: 90 nop 2f: 90 nop 30: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi 37: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi