cgroup: Unknown subsys name 'net'
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000004: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000020-0x0000000000000027]
CPU: 0 UID: 0 PID: 269 Comm: syz-executor Tainted: G        W           6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary) 
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:css_rstat_flush+0x2b4/0x1b30
Code: 00 49 8d 7d 08 4d 89 6d 00 48 89 f8 48 c1 e8 03 42 80 3c 38 00 0f 85 29 0f 00 00 4d 8b 6d 08 49 8d 7d 20 48 89 f8 48 c1 e8 03 <42> 80 3c 38 00 0f 85 19 0f 00 00 48 8b 44 24 18 49 8b 6d 20 80 38
RSP: 0018:ffff888016dc7b18 EFLAGS: 00010012
RAX: 0000000000000004 RBX: ffff8880e55dd000 RCX: ffffffff824fcb97
RDX: ffff88801bcd9b80 RSI: ffffffff816cfaf9 RDI: 0000000000000020
RBP: ffffe8ffffc143d0 R08: 0000000000000001 R09: ffffed1002db8f55
R10: 0000000000000001 R11: 0000000000000001 R12: ffffe8ffffc143d8
R13: 0000000000000000 R14: ffff888016b94000 R15: dffffc0000000000
FS:  0000555580ec9400(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c000669000 CR3: 00000000127b0000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 css_rstat_exit+0xd9/0x470
 cgroup_setup_root+0x85c/0xab0
 cgroup1_get_tree+0xa1e/0xe90
 vfs_get_tree+0x93/0x340
 path_mount+0x132d/0x1dd0
 __x64_sys_mount+0x27b/0x300
 do_syscall_64+0xbf/0x360
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbfa98e904a
Code: 48 c7 c2 bc ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 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:00007ffe95455118 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffe954552b8 RCX: 00007fbfa98e904a
RDX: 00007fbfa994bfbd RSI: 00007fbfa994229a RDI: 00007fbfa9940d71
RBP: 00007fbfa994229a R08: 00007fbfa9942400 R09: ffffffffffff0000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe95455120
R13: 00007ffe954552c8 R14: 00007ffe954551f0 R15: 00007fbfa99423f1
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:css_rstat_flush+0x2b4/0x1b30
Code: 00 49 8d 7d 08 4d 89 6d 00 48 89 f8 48 c1 e8 03 42 80 3c 38 00 0f 85 29 0f 00 00 4d 8b 6d 08 49 8d 7d 20 48 89 f8 48 c1 e8 03 <42> 80 3c 38 00 0f 85 19 0f 00 00 48 8b 44 24 18 49 8b 6d 20 80 38
RSP: 0018:ffff888016dc7b18 EFLAGS: 00010012
RAX: 0000000000000004 RBX: ffff8880e55dd000 RCX: ffffffff824fcb97
RDX: ffff88801bcd9b80 RSI: ffffffff816cfaf9 RDI: 0000000000000020
RBP: ffffe8ffffc143d0 R08: 0000000000000001 R09: ffffed1002db8f55
R10: 0000000000000001 R11: 0000000000000001 R12: ffffe8ffffc143d8
R13: 0000000000000000 R14: ffff888016b94000 R15: dffffc0000000000
FS:  0000555580ec9400(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c000669000 CR3: 00000000127b0000 CR4: 0000000000350ef0
note: syz-executor[269] exited with irqs disabled
note: syz-executor[269] exited with preempt_count 1
----------------
Code disassembly (best guess):
   0:	00 49 8d             	add    %cl,-0x73(%rcx)
   3:	7d 08                	jge    0xd
   5:	4d 89 6d 00          	mov    %r13,0x0(%r13)
   9:	48 89 f8             	mov    %rdi,%rax
   c:	48 c1 e8 03          	shr    $0x3,%rax
  10:	42 80 3c 38 00       	cmpb   $0x0,(%rax,%r15,1)
  15:	0f 85 29 0f 00 00    	jne    0xf44
  1b:	4d 8b 6d 08          	mov    0x8(%r13),%r13
  1f:	49 8d 7d 20          	lea    0x20(%r13),%rdi
  23:	48 89 f8             	mov    %rdi,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 80 3c 38 00       	cmpb   $0x0,(%rax,%r15,1) <-- trapping instruction
  2f:	0f 85 19 0f 00 00    	jne    0xf4e
  35:	48 8b 44 24 18       	mov    0x18(%rsp),%rax
  3a:	49 8b 6d 20          	mov    0x20(%r13),%rbp
  3e:	80                   	.byte 0x80
  3f:	38                   	.byte 0x38