=============================
[ BUG: Invalid wait context ]
syzkaller #0 Not tainted
-----------------------------
dhcpcd-run-hook/5313 is trying to lock:
ffff888012299bb0 (&gpc->lock){....}-{3:3}, at: kvm_xen_set_evtchn_fast+0x1f4/0x9a0 arch/x86/kvm/xen.c:1822
other info that might help us debug this:
context-{2:2}
2 locks held by dhcpcd-run-hook/5313:
 #0: ffff888032320518 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:1089 [inline]
 #0: ffff888032320518 (mapping.invalidate_lock#2){++++}-{4:4}, at: do_page_cache_ra mm/readahead.c:347 [inline]
 #0: ffff888032320518 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_order+0xb37/0xee0 mm/readahead.c:558
 #1: ffff88801229a110 (&kvm->srcu){.?.+}-{0:0}, at: srcu_lock_acquire include/linux/srcu.h:187 [inline]
 #1: ffff88801229a110 (&kvm->srcu){.?.+}-{0:0}, at: srcu_read_lock include/linux/srcu.h:294 [inline]
 #1: ffff88801229a110 (&kvm->srcu){.?.+}-{0:0}, at: kvm_xen_set_evtchn_fast+0x1bc/0x9a0 arch/x86/kvm/xen.c:1820
stack backtrace:
CPU: 0 UID: 0 PID: 5313 Comm: dhcpcd-run-hook Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Call Trace:
 <IRQ>
 dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
 print_lock_invalid_wait_context kernel/locking/lockdep.c:4830 [inline]
 check_wait_context kernel/locking/lockdep.c:4902 [inline]
 __lock_acquire+0xe39/0x2cf0 kernel/locking/lockdep.c:5187
 lock_acquire+0x106/0x350 kernel/locking/lockdep.c:5868
 __raw_read_lock_irqsave include/linux/rwlock_api_smp.h:174 [inline]
 _raw_read_lock_irqsave+0x48/0x60 kernel/locking/spinlock.c:240
 kvm_xen_set_evtchn_fast+0x1f4/0x9a0 arch/x86/kvm/xen.c:1822
 xen_timer_callback+0x109/0x220 arch/x86/kvm/xen.c:140
 __run_hrtimer kernel/time/hrtimer.c:2032 [inline]
 __hrtimer_run_queues+0x371/0xa10 kernel/time/hrtimer.c:2096
 hrtimer_interrupt+0x448/0x910 kernel/time/hrtimer.c:2215
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1051 [inline]
 __sysvec_apic_timer_interrupt+0x102/0x430 arch/x86/kernel/apic/apic.c:1068
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
 sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1062
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:lock_release+0x2d7/0x3c0 kernel/locking/lockdep.c:5893
Code: cb ca 11 00 00 00 00 eb b5 e8 b5 db 2f 0a f7 c3 00 02 00 00 74 b9 65 48 8b 05 45 86 ca 11 48 3b 44 24 28 75 44 fb 48 83 c4 30 <5b> 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc 48 8d 3d c2 14 b8
RSP: 0018:ffffc9000f3bf5f8 EFLAGS: 00000282
RAX: baf2373d1ce2ae00 RBX: 0000000000000206 RCX: 0000000000000046
RDX: 0000000000000001 RSI: ffffffff8e4b0c2e RDI: ffffffff8c4bce80
RBP: ffff88801231b108 R08: ffffffff823f13c0 R09: 0000000000000000
R10: 0000000000000000 R11: ffffffff8eb59c60 R12: 0000000000000001
R13: 0000000000000001 R14: ffffffff8eb59c60 R15: ffff88801231a540
 rcu_lock_release include/linux/rcupdate.h:310 [inline]
 rcu_read_unlock include/linux/rcupdate.h:871 [inline]
 get_obj_cgroup_from_memcg mm/memcontrol.c:2930 [inline]
 charge_memcg+0xeb/0x2b0 mm/memcontrol.c:5123
 __mem_cgroup_charge+0x25/0x80 mm/memcontrol.c:5143
 mem_cgroup_charge include/linux/memcontrol.h:657 [inline]
 filemap_add_folio+0x151/0x530 mm/filemap.c:965
 page_cache_ra_unbounded+0x46d/0x9d0 mm/readahead.c:293
 do_page_cache_ra mm/readahead.c:348 [inline]
 page_cache_ra_order+0xb47/0xee0 mm/readahead.c:558
 do_sync_mmap_readahead+0x75e/0x990 mm/filemap.c:3434
 filemap_fault+0x7d9/0x13b0 mm/filemap.c:3588
 __do_fault+0x138/0x2a0 mm/memory.c:5425
 do_cow_fault mm/memory.c:5890 [inline]
 do_fault mm/memory.c:5996 [inline]
 do_pte_missing+0x1032/0x34b0 mm/memory.c:4566
 handle_pte_fault mm/memory.c:6379 [inline]
 __handle_mm_fault mm/memory.c:6517 [inline]
 handle_mm_fault+0x1b36/0x3080 mm/memory.c:6686
 do_user_addr_fault+0xa4d/0x1340 arch/x86/mm/fault.c:1343
 handle_page_fault arch/x86/mm/fault.c:1483 [inline]
 exc_page_fault+0x6a/0xc0 arch/x86/mm/fault.c:1536
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595
RIP: 0033:0x7f1a1ae4eff2
Code: 0f 60 c0 66 0f 61 c0 66 0f 70 c0 00 48 83 fa 10 72 76 48 83 fa 20 77 12 0f 11 44 17 f0 0f 11 07 c3 0f 11 47 e0 0f 11 47 f0 c3 <0f> 11 07 0f 11 47 10 48 01 d7 48 83 fa 40 76 e7 0f 11 40 20 0f 11
RSP: 002b:00007fff39b118c8 EFLAGS: 00010206
RAX: 00007f1a1ae21263 RBX: 0000000000000004 RCX: 00007f1a1ae21918
RDX: 00000000000006b5 RSI: 0000000000000000 RDI: 00007f1a1ae21263
RBP: 00007fff39b11c20 R08: 00007f1a1ae21263 R09: 0000000000000003
R10: 0000000000000812 R11: 00007fff39b11d08 R12: 00007fff39b11978
R13: 00007f1a1ae220c0 R14: 00007fff39b11cc0 R15: 00007f1a1ae21918
 </TASK>
----------------
Code disassembly (best guess), 3 bytes skipped:
   0:	00 00                	add    %al,(%rax)
   2:	00 00                	add    %al,(%rax)
   4:	eb b5                	jmp    0xffffffbb
   6:	e8 b5 db 2f 0a       	call   0xa2fdbc0
   b:	f7 c3 00 02 00 00    	test   $0x200,%ebx
  11:	74 b9                	je     0xffffffcc
  13:	65 48 8b 05 45 86 ca 	mov    %gs:0x11ca8645(%rip),%rax        # 0x11ca8660
  1a:	11
  1b:	48 3b 44 24 28       	cmp    0x28(%rsp),%rax
  20:	75 44                	jne    0x66
  22:	fb                   	sti
  23:	48 83 c4 30          	add    $0x30,%rsp
* 27:	5b                   	pop    %rbx <-- trapping instruction
  28:	41 5c                	pop    %r12
  2a:	41 5d                	pop    %r13
  2c:	41 5e                	pop    %r14
  2e:	41 5f                	pop    %r15
  30:	5d                   	pop    %rbp
  31:	c3                   	ret
  32:	cc                   	int3
  33:	cc                   	int3
  34:	cc                   	int3
  35:	cc                   	int3
  36:	cc                   	int3
  37:	48                   	rex.W
  38:	8d                   	.byte 0x8d
  39:	3d                   	.byte 0x3d
  3a:	c2 14 b8             	ret    $0xb814