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: 775 Comm: kworker/u4:2 Not tainted 5.19.0-rc1-syzkaller-00095-g874c8ca1e60b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: netns cleanup_net
RIP: 0010:__list_del_entry_valid+0x81/0xf0 lib/list_debug.c:51
Code: 0f 84 70 fe 41 05 48 b8 22 01 00 00 00 00 ad de 49 39 c4 0f 84 71 fe 41 05 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 75 51 49 8b 14 24 48 39 ea 0f 85 25 fe 41 05 49 8d 7d
RSP: 0018:ffffc90003fffbc0 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff888026d05210 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff879d8f51 RDI: ffff888026d05228
RBP: ffff888026d05220 R08: 0000000000000001 R09: ffffc90003fffa5f
R10: fffff520007fff4b R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: ffff888026d05228
FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fead59266c8 CR3: 000000007b586000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
ops_exit_list+0xb0/0x170 net/core/net_namespace.c:162
cleanup_net+0x4ea/0xb00 net/core/net_namespace.c:594
process_one_work+0x996/0x1610 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__list_del_entry_valid+0x81/0xf0 lib/list_debug.c:51
Code: 0f 84 70 fe 41 05 48 b8 22 01 00 00 00 00 ad de 49 39 c4 0f 84 71 fe 41 05 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 75 51 49 8b 14 24 48 39 ea 0f 85 25 fe 41 05 49 8d 7d
RSP: 0018:ffffc90003fffbc0 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff888026d05210 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff879d8f51 RDI: ffff888026d05228
RBP: ffff888026d05220 R08: 0000000000000001 R09: ffffc90003fffa5f
R10: fffff520007fff4b R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: ffff888026d05228
FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fead59266c8 CR3: 000000007b586000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 0f 84 70 fe 41 05 je 0x541fe76
6: 48 b8 22 01 00 00 00 movabs $0xdead000000000122,%rax
d: 00 ad de
10: 49 39 c4 cmp %rax,%r12
13: 0f 84 71 fe 41 05 je 0x541fe8a
19: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
20: fc ff df
23: 4c 89 e2 mov %r12,%rdx
26: 48 c1 ea 03 shr $0x3,%rdx
* 2a: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction
2e: 75 51 jne 0x81
30: 49 8b 14 24 mov (%r12),%rdx
34: 48 39 ea cmp %rbp,%rdx
37: 0f 85 25 fe 41 05 jne 0x541fe62
3d: 49 rex.WB
3e: 8d .byte 0x8d
3f: 7d .byte 0x7d