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: 23928 Comm: dhcpcd Not tainted 6.16.0-syzkaller-12063-g37816488247d-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 a0 4c 98 8b be 4b 03 00 00 48 c7 c2 e0 4c 98 8b e8 a4 bd 71 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 d4 4d f7 ff 49 8b 07 a8 03 75 62
RSP: 0018:ffffc90003b6f598 EFLAGS: 00010206
RAX: 000000001fffe000 RBX: ffffffff822bc7f9 RCX: b81240107006ca00
RDX: 0000000000000000 RSI: ffffffff8be32660 RDI: ffffffff8be32620
RBP: 0000000000000078 R08: 0000000000000000 R09: ffffffff822bc7f9
R10: dffffc0000000000 R11: fffffbfff1f468e7 R12: dffffc0000000000
R13: ffff88804b03b540 R14: 0000000000000001 R15: 00000000ffff0000
FS:  00007fd8b9fe8740(0000) GS:ffff8880b8621000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fda02dfcd0c CR3: 0000000035fae000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 refill_obj_stock+0x254/0x850
 __memcg_slab_free_hook+0x127/0x3d0
 kmem_cache_free+0x223/0x400
 unlink_anon_vmas+0x2cc/0x670
 free_pgtables+0x72b/0x9c0
 vms_clear_ptes+0x424/0x540
 vms_complete_munmap_vmas+0x206/0x8a0
 do_vmi_align_munmap+0x358/0x420
 do_vmi_munmap+0x253/0x2e0
 __vm_munmap+0x23b/0x3d0
 __x64_sys_munmap+0x60/0x70
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd8ba1c1b97
Code: b8 09 00 00 00 0f 05 48 3d 00 f0 ff ff 76 0c f7 d8 89 05 dc 46 01 00 48 83 c8 ff c3 0f 1f 80 00 00 00 00 b8 0b 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8d 0d b9 46 01 00 f7 d8 89 01 48 83
RSP: 002b:00007ffff657ba48 EFLAGS: 00000202 ORIG_RAX: 000000000000000b
RAX: ffffffffffffffda RBX: 0000562acfa9d800 RCX: 00007fd8ba1c1b97
RDX: 0000000000000001 RSI: 0000000000026610 RDI: 00007fd8b9f98000
RBP: 00007ffff657bb40 R08: 0000000000000000 R09: 43504e422e2a9083
R10: 00007ffff657b9d0 R11: 0000000000000202 R12: 00007fd8ba1d5000
R13: 0000000000000000 R14: 0000562acfa9d800 R15: 0000000000000000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:percpu_ref_get_many+0x8d/0x140
Code: 01 48 c7 c7 a0 4c 98 8b be 4b 03 00 00 48 c7 c2 e0 4c 98 8b e8 a4 bd 71 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 d4 4d f7 ff 49 8b 07 a8 03 75 62
RSP: 0018:ffffc90003b6f598 EFLAGS: 00010206
RAX: 000000001fffe000 RBX: ffffffff822bc7f9 RCX: b81240107006ca00
RDX: 0000000000000000 RSI: ffffffff8be32660 RDI: ffffffff8be32620
RBP: 0000000000000078 R08: 0000000000000000 R09: ffffffff822bc7f9
R10: dffffc0000000000 R11: fffffbfff1f468e7 R12: dffffc0000000000
R13: ffff88804b03b540 R14: 0000000000000001 R15: 00000000ffff0000
FS:  00007fd8b9fe8740(0000) GS:ffff8880b8621000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fda02dfcd0c CR3: 0000000035fae000 CR4: 00000000000006f0
