Oops: general protection fault, probably for non-canonical address 0xdffffc001fffe000: 0000 [#1] SMP KASAN PTI
KASAN: probably user-memory-access in range [0x00000000ffff0000-0x00000000ffff0007]
CPU: 0 UID: 0 PID: 15 Comm: ksoftirqd/0 Not tainted 6.16.0-syzkaller-06620-gae633388cae3-dirty #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:percpu_ref_get_many+0x8d/0x140
Code: 01 48 c7 c7 40 51 98 8b be 4b 03 00 00 48 c7 c2 80 51 98 8b e8 a4 24 72 ff 49 bc 00 00 00 00 00 fc ff df 4c 89 f8 48 c1 e8 03 <42> 80 3c 20 00 74 08 4c 89 ff e8 04 5d f7 ff 49 8b 07 a8 03 75 62
RSP: 0018:ffffc90000127718 EFLAGS: 00010206
RAX: 000000001fffe000 RBX: ffffffff822b7619 RCX: aed982837b3fb200
RDX: 0000000000000000 RSI: ffffffff8be309e0 RDI: ffffffff8be309a0
RBP: 0000000000000048 R08: 0000000000000000 R09: ffffffff822b7619
R10: dffffc0000000000 R11: fffffbfff1f40f7f R12: dffffc0000000000
R13: ffff88804b03b500 R14: 0000000000000001 R15: 00000000ffff0000
FS:  0000000000000000(0000) GS:ffff8880b8680000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30b23ffc CR3: 00000001250da000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 refill_obj_stock+0x254/0x850
 __memcg_slab_free_hook+0x127/0x3d0
 kfree+0x255/0x440
 security_cred_free+0xbf/0x1d0
 put_cred_rcu+0x6a/0x2e0
 rcu_core+0xca8/0x1710
 handle_softirqs+0x286/0x870
 run_ksoftirqd+0x9b/0x100
 smpboot_thread_fn+0x542/0xa60
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 ret_from_fork_asm+0x1a/0x30
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:percpu_ref_get_many+0x8d/0x140
Code: 01 48 c7 c7 40 51 98 8b be 4b 03 00 00 48 c7 c2 80 51 98 8b e8 a4 24 72 ff 49 bc 00 00 00 00 00 fc ff df 4c 89 f8 48 c1 e8 03 <42> 80 3c 20 00 74 08 4c 89 ff e8 04 5d f7 ff 49 8b 07 a8 03 75 62
RSP: 0018:ffffc90000127718 EFLAGS: 00010206
RAX: 000000001fffe000 RBX: ffffffff822b7619 RCX: aed982837b3fb200
RDX: 0000000000000000 RSI: ffffffff8be309e0 RDI: ffffffff8be309a0
RBP: 0000000000000048 R08: 0000000000000000 R09: ffffffff822b7619
R10: dffffc0000000000 R11: fffffbfff1f40f7f R12: dffffc0000000000
R13: ffff88804b03b500 R14: 0000000000000001 R15: 00000000ffff0000
FS:  0000000000000000(0000) GS:ffff8880b8680000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30b23ffc CR3: 00000001250da000 CR4: 00000000000006f0
