Oops: general protection fault, probably for non-canonical address 0xdffffc0000f38033: 0000 [#1] SMP KASAN NOPTI
KASAN: probably user-memory-access in range [0x00000000079c0198-0x00000000079c019f]
CPU: 1 UID: 0 PID: 4470 Comm: syz-executor.7 Not tainted 6.18.0-rc5-next-20251112 #1 PREEMPT(voluntary) 
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:nsproxy_free+0x13d/0x5a0
Code: 0f 85 40 04 00 00 4c 8b 65 30 4d 85 e4 74 41 e8 99 48 30 00 49 8d 7c 24 30 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 30 04 00 00 49 8b 5c 24 30 bf 08 00 00 00 48 89
RSP: 0018:ffff8880167b79f8 EFLAGS: 00010216
RAX: dffffc0000000000 RBX: 0000000000000006 RCX: ffffc90000bef000
RDX: 0000000000f38033 RSI: ffffffff81447a17 RDI: 00000000079c0199
RBP: ffff88800c02bea0 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff8664ca57 R11: 0000000000000001 R12: 00000000079c0169
R13: ffff88801ce7c48c R14: ffff88801cf878e0 R15: ffff88800e41bff8
FS:  00007f01a343d700(0000) GS:ffff8880e5497000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd033348545 CR3: 0000000017956000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 create_new_namespaces+0x585/0x750
 copy_namespaces+0x45c/0x580
 copy_process+0x26e4/0x72a0
 kernel_clone+0xea/0x7f0
 __do_sys_clone3+0x1f5/0x280
 do_syscall_64+0xbf/0x430
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f01a5f09b19
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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f01a343d188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3
RAX: ffffffffffffffda RBX: 00007f01a601d0e0 RCX: 00007f01a5f09b19
RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020005880
RBP: 00007f01a5f63f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe55962dcf R14: 00007f01a343d300 R15: 0000000000022000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:nsproxy_free+0x13d/0x5a0
Code: 0f 85 40 04 00 00 4c 8b 65 30 4d 85 e4 74 41 e8 99 48 30 00 49 8d 7c 24 30 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 30 04 00 00 49 8b 5c 24 30 bf 08 00 00 00 48 89
RSP: 0018:ffff8880167b79f8 EFLAGS: 00010216
RAX: dffffc0000000000 RBX: 0000000000000006 RCX: ffffc90000bef000
RDX: 0000000000f38033 RSI: ffffffff81447a17 RDI: 00000000079c0199
RBP: ffff88800c02bea0 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff8664ca57 R11: 0000000000000001 R12: 00000000079c0169
R13: ffff88801ce7c48c R14: ffff88801cf878e0 R15: ffff88800e41bff8
FS:  00007f01a343d700(0000) GS:ffff8880e5497000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd033348545 CR3: 0000000017956000 CR4: 0000000000350ef0
serio: Serial port ptm0
loop5: detected capacity change from 0 to 512
EXT4-fs error (device loop5): ext4_quota_enable:7132: comm syz-executor.5: Bad quota inum: 768, type: 0
EXT4-fs warning (device loop5): ext4_enable_quotas:7177: Failed to enable quota tracking (type=0, err=-117, ino=768). Please run e2fsck to fix.
EXT4-fs (loop5): mount failed
loop5: detected capacity change from 0 to 512
EXT4-fs error (device loop5): ext4_quota_enable:7132: comm syz-executor.5: Bad quota inum: 768, type: 0
EXT4-fs warning (device loop5): ext4_enable_quotas:7177: Failed to enable quota tracking (type=0, err=-117, ino=768). Please run e2fsck to fix.
EXT4-fs (loop5): mount failed
raw_sendmsg: syz-executor.0 forgot to set AF_INET. Fix it!
----------------
Code disassembly (best guess):
   0:	0f 85 40 04 00 00    	jne    0x446
   6:	4c 8b 65 30          	mov    0x30(%rbp),%r12
   a:	4d 85 e4             	test   %r12,%r12
   d:	74 41                	je     0x50
   f:	e8 99 48 30 00       	callq  0x3048ad
  14:	49 8d 7c 24 30       	lea    0x30(%r12),%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 30 04 00 00    	jne    0x464
  34:	49 8b 5c 24 30       	mov    0x30(%r12),%rbx
  39:	bf 08 00 00 00       	mov    $0x8,%edi
  3e:	48                   	rex.W
  3f:	89                   	.byte 0x89