general protection fault, probably for non-canonical address 0xdffffc000000004b: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000258-0x000000000000025f] CPU: 0 PID: 13 Comm: ksoftirqd/0 Not tainted 5.16.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:dev_index_hash net/core/dev.c:216 [inline] RIP: 0010:dev_get_by_index_rcu+0x28/0x140 net/core/dev.c:801 Code: 00 00 41 55 41 54 55 89 f5 53 48 89 fb e8 60 9c 4c fa 48 8d bb 58 02 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 fc 00 00 00 48 8b 93 58 02 00 00 40 0f b6 c5 48 RSP: 0018:ffffc90000d27608 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000100 RDX: 000000000000004b RSI: ffffffff872af640 RDI: 0000000000000258 RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000001 R10: ffffffff8737c18d R11: 0000000000000001 R12: ffff888017a3e100 R13: 0000000000000003 R14: 000000000000010e R15: ffff88801c4a65b6 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe0a44621b8 CR3: 00000000186be000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ____bpf_clone_redirect net/core/filter.c:2409 [inline] bpf_clone_redirect+0x91/0x420 net/core/filter.c:2400 bpf_prog_bebbfe2050753572+0x56/0x6b0 __bpf_prog_run include/linux/filter.h:626 [inline] bpf_prog_run_xdp include/linux/filter.h:801 [inline] veth_xdp_rcv_skb+0x64e/0x1bc0 drivers/net/veth.c:768 veth_xdp_rcv+0x39b/0x9a0 drivers/net/veth.c:874 veth_poll+0x134/0x850 drivers/net/veth.c:910 __napi_poll+0xaf/0x440 net/core/dev.c:6364 napi_poll net/core/dev.c:6431 [inline] net_rx_action+0x801/0xb40 net/core/dev.c:6518 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558 run_ksoftirqd kernel/softirq.c:921 [inline] run_ksoftirqd+0x2d/0x60 kernel/softirq.c:913 smpboot_thread_fn+0x645/0x9c0 kernel/smpboot.c:164 kthread+0x405/0x4f0 kernel/kthread.c:327 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Modules linked in: ---[ end trace 80272a30996b1af9 ]--- RIP: 0010:dev_index_hash net/core/dev.c:216 [inline] RIP: 0010:dev_get_by_index_rcu+0x28/0x140 net/core/dev.c:801 Code: 00 00 41 55 41 54 55 89 f5 53 48 89 fb e8 60 9c 4c fa 48 8d bb 58 02 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 fc 00 00 00 48 8b 93 58 02 00 00 40 0f b6 c5 48 RSP: 0018:ffffc90000d27608 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000100 RDX: 000000000000004b RSI: ffffffff872af640 RDI: 0000000000000258 RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000001 R10: ffffffff8737c18d R11: 0000000000000001 R12: ffff888017a3e100 R13: 0000000000000003 R14: 000000000000010e R15: ffff88801c4a65b6 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe0a44621b8 CR3: 00000000186be000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 00 00 add %al,(%rax) 2: 41 55 push %r13 4: 41 54 push %r12 6: 55 push %rbp 7: 89 f5 mov %esi,%ebp 9: 53 push %rbx a: 48 89 fb mov %rdi,%rbx d: e8 60 9c 4c fa callq 0xfa4c9c72 12: 48 8d bb 58 02 00 00 lea 0x258(%rbx),%rdi 19: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 20: fc ff df 23: 48 89 fa mov %rdi,%rdx 26: 48 c1 ea 03 shr $0x3,%rdx * 2a: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction 2e: 0f 85 fc 00 00 00 jne 0x130 34: 48 8b 93 58 02 00 00 mov 0x258(%rbx),%rdx 3b: 40 0f b6 c5 movzbl %bpl,%eax 3f: 48 rex.W