general protection fault, probably for non-canonical address 0xed0e092c650c4c84: 0000 [#1] PREEMPT SMP KASAN KASAN: maybe wild-memory-access in range [0x6870696328626420-0x6870696328626427] CPU: 1 PID: 19794 Comm: syz.5.6022 Tainted: G W 5.15.178-syzkaller-00013-g7d1f9b5c2ff5 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:xdp_ok_fwd_dev include/linux/filter.h:1003 [inline] RIP: 0010:dev_map_generic_redirect+0xe0/0x6f0 kernel/bpf/devmap.c:667 Code: 03 48 89 44 24 38 42 0f b6 04 30 84 c0 0f 85 eb 03 00 00 48 89 5c 24 28 44 8b 3b 49 8d 9c 24 c0 00 00 00 48 89 d8 48 c1 e8 03 <42> 0f b6 04 30 84 c0 0f 85 e4 03 00 00 8b 1b 89 de 83 e6 01 31 ff RSP: 0018:ffffc900001d06e0 EFLAGS: 00010207 RAX: 0d0e0d2c650c4c84 RBX: 6870696328626425 RCX: ffff88810cf10000 RDX: 0000000000000100 RSI: ffff888127d10640 RDI: ffff8881294cad00 RBP: ffffc900001d0830 R08: ffffffff83f1850d R09: ffffffff83f1842b R10: 0000000000000004 R11: ffff88810cf10000 R12: 6870696328626365 R13: 1ffff9200003a0e8 R14: dffffc0000000000 R15: 000000000000002e FS: 00007fe99efc26c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c2b9c23 CR3: 000000014fb1e000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: xdp_do_generic_redirect_map net/core/filter.c:4177 [inline] xdp_do_generic_redirect+0x42e/0xb40 net/core/filter.c:4236 do_xdp_generic+0x50b/0x7c0 net/core/dev.c:4919 __netif_receive_skb_core+0x1706/0x3640 net/core/dev.c:5324 __netif_receive_skb_one_core net/core/dev.c:5499 [inline] __netif_receive_skb+0x11c/0x530 net/core/dev.c:5615 process_backlog+0x31c/0x650 net/core/dev.c:6492 __napi_poll+0xc4/0x5a0 net/core/dev.c:7051 napi_poll net/core/dev.c:7118 [inline] net_rx_action+0x47d/0xc50 net/core/dev.c:7208 handle_softirqs+0x25e/0x5c0 kernel/softirq.c:565 __do_softirq+0xb/0xd kernel/softirq.c:603 do_softirq+0xf6/0x150 kernel/softirq.c:452 netif_rx_ni+0x5f/0x2d0 net/core/dev.c:5010 tipc_clone_to_loopback+0x3b9/0x4a0 net/tipc/bearer.c:776 tipc_loopback_trace net/tipc/bearer.h:253 [inline] tipc_node_xmit+0xb83/0xe40 net/tipc/node.c:1701 __tipc_sendmsg+0x1e82/0x3240 net/tipc/socket.c:1515 tipc_sendmsg+0x55/0x70 net/tipc/socket.c:1403 sock_sendmsg_nosec net/socket.c:704 [inline] __sock_sendmsg net/socket.c:716 [inline] ____sys_sendmsg+0x59e/0x8f0 net/socket.c:2436 ___sys_sendmsg+0x252/0x2e0 net/socket.c:2490 __sys_sendmsg net/socket.c:2519 [inline] __do_sys_sendmsg net/socket.c:2528 [inline] __se_sys_sendmsg+0x19a/0x260 net/socket.c:2526 __x64_sys_sendmsg+0x7b/0x90 net/socket.c:2526 x64_sys_call+0x16a/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:47 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7fe9a0958169 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fe99efc2038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fe9a0b70fa0 RCX: 00007fe9a0958169 RDX: 0000000000000000 RSI: 0000200000000080 RDI: 0000000000000007 RBP: 00007fe9a09d92a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fe9a0b70fa0 R15: 00007ffc34242968 Modules linked in: ---[ end trace 48f999b43a26bea9 ]--- RIP: 0010:xdp_ok_fwd_dev include/linux/filter.h:1003 [inline] RIP: 0010:dev_map_generic_redirect+0xe0/0x6f0 kernel/bpf/devmap.c:667 Code: 03 48 89 44 24 38 42 0f b6 04 30 84 c0 0f 85 eb 03 00 00 48 89 5c 24 28 44 8b 3b 49 8d 9c 24 c0 00 00 00 48 89 d8 48 c1 e8 03 <42> 0f b6 04 30 84 c0 0f 85 e4 03 00 00 8b 1b 89 de 83 e6 01 31 ff RSP: 0018:ffffc900001d06e0 EFLAGS: 00010207 RAX: 0d0e0d2c650c4c84 RBX: 6870696328626425 RCX: ffff88810cf10000 RDX: 0000000000000100 RSI: ffff888127d10640 RDI: ffff8881294cad00 RBP: ffffc900001d0830 R08: ffffffff83f1850d R09: ffffffff83f1842b R10: 0000000000000004 R11: ffff88810cf10000 R12: 6870696328626365 R13: 1ffff9200003a0e8 R14: dffffc0000000000 R15: 000000000000002e FS: 00007fe99efc26c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c2b9c23 CR3: 000000014fb1e000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 03 48 89 add -0x77(%rax),%ecx 3: 44 24 38 rex.R and $0x38,%al 6: 42 0f b6 04 30 movzbl (%rax,%r14,1),%eax b: 84 c0 test %al,%al d: 0f 85 eb 03 00 00 jne 0x3fe 13: 48 89 5c 24 28 mov %rbx,0x28(%rsp) 18: 44 8b 3b mov (%rbx),%r15d 1b: 49 8d 9c 24 c0 00 00 lea 0xc0(%r12),%rbx 22: 00 23: 48 89 d8 mov %rbx,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 0f b6 04 30 movzbl (%rax,%r14,1),%eax <-- trapping instruction 2f: 84 c0 test %al,%al 31: 0f 85 e4 03 00 00 jne 0x41b 37: 8b 1b mov (%rbx),%ebx 39: 89 de mov %ebx,%esi 3b: 83 e6 01 and $0x1,%esi 3e: 31 ff xor %edi,%edi