syzbot

general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 PID: 511 Comm: syz-executor420 Not tainted 6.1.78-syzkaller-00164-gac9706483e98 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:dev_map_enqueue+0x31/0x340 kernel/bpf/devmap.c:528
Code: 56 41 55 41 54 53 48 83 ec 18 48 89 55 c0 49 89 f7 48 89 fb 49 bc 00 00 00 00 00 fc ff df e8 c6 1f de ff 48 89 d8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 df e8 40 1e 25 00 4c 8b 33 48 83 c3 20
RSP: 0018:ffffc9000139f648 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff888113ea6540
RDX: 0000000000000000 RSI: ffff8881247c8070 RDI: 0000000000000000
RBP: ffffc9000139f688 R08: 0000000000000005 R09: ffffffff8411d695
R10: 0000000000000004 R11: ffff888113ea6540 R12: dffffc0000000000
R13: 0000000000000000 R14: ffff8881f71364a0 R15: ffff8881247c8070
FS:  00007f9a80b416c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200009c0 CR3: 000000012470a000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __xdp_do_redirect_frame net/core/filter.c:4268 [inline]
 xdp_do_redirect_frame+0x285/0x750 net/core/filter.c:4330
 xdp_test_run_batch net/bpf/test_run.c:314 [inline]
 bpf_test_run_xdp_live+0xc30/0x1f70 net/bpf/test_run.c:362
 bpf_prog_test_run_xdp+0x7d1/0x1130 net/bpf/test_run.c:1387
 bpf_prog_test_run+0x3b0/0x630 kernel/bpf/syscall.c:3650
 __sys_bpf+0x59f/0x7f0 kernel/bpf/syscall.c:5005
 __do_sys_bpf kernel/bpf/syscall.c:5091 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:5089 [inline]
 __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5089
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f9a80b86be9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 01 1b 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f9a80b41238 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f9a80c161c8 RCX: 00007f9a80b86be9
RDX: 0000000000000050 RSI: 0000000020000240 RDI: 000000000000000a
RBP: 00007f9a80c161c0 R08: 00007f9a80b416c0 R09: 00007f9a80b416c0
R10: 00007f9a80b416c0 R11: 0000000000000246 R12: 00007f9a80bdc63c
R13: 0000000000000016 R14: 00007ffd443d05f0 R15: 00007ffd443d06d8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:dev_map_enqueue+0x31/0x340 kernel/bpf/devmap.c:528
Code: 56 41 55 41 54 53 48 83 ec 18 48 89 55 c0 49 89 f7 48 89 fb 49 bc 00 00 00 00 00 fc ff df e8 c6 1f de ff 48 89 d8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 df e8 40 1e 25 00 4c 8b 33 48 83 c3 20
RSP: 0018:ffffc9000139f648 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff888113ea6540
RDX: 0000000000000000 RSI: ffff8881247c8070 RDI: 0000000000000000
RBP: ffffc9000139f688 R08: 0000000000000005 R09: ffffffff8411d695
R10: 0000000000000004 R11: ffff888113ea6540 R12: dffffc0000000000
R13: 0000000000000000 R14: ffff8881f71364a0 R15: ffff8881247c8070
FS:  00007f9a80b416c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200009c0 CR3: 000000012470a000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	56                   	push   %rsi
   1:	41 55                	push   %r13
   3:	41 54                	push   %r12
   5:	53                   	push   %rbx
   6:	48 83 ec 18          	sub    $0x18,%rsp
   a:	48 89 55 c0          	mov    %rdx,-0x40(%rbp)
   e:	49 89 f7             	mov    %rsi,%r15
  11:	48 89 fb             	mov    %rdi,%rbx
  14:	49 bc 00 00 00 00 00 	movabs $0xdffffc0000000000,%r12
  1b:	fc ff df
  1e:	e8 c6 1f de ff       	call   0xffde1fe9
  23:	48 89 d8             	mov    %rbx,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 80 3c 20 00       	cmpb   $0x0,(%rax,%r12,1) <-- trapping instruction
  2f:	74 08                	je     0x39
  31:	48 89 df             	mov    %rbx,%rdi
  34:	e8 40 1e 25 00       	call   0x251e79
  39:	4c 8b 33             	mov    (%rbx),%r14
  3c:	48 83 c3 20          	add    $0x20,%rbx