WARNING: CPU: 2 PID: 6890 at lib/refcount.c:31 refcount_warn_saturate+0x1ed/0x210 lib/refcount.c:31
Modules linked in:
CPU: 2 PID: 6890 Comm: syz-executor.0 Not tainted 6.9.0-rc4-syzkaller-00113-g2668e3ae2ef3 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:refcount_warn_saturate+0x1ed/0x210 lib/refcount.c:31
Code: 8b e8 37 a4 d0 fc 90 0f 0b 90 90 e9 c3 fe ff ff e8 98 35 0e fd c6 05 e5 3b 09 0b 01 90 48 c7 c7 40 f4 6e 8b e8 14 a4 d0 fc 90 <0f> 0b 90 90 e9 a0 fe ff ff 48 89 ef e8 02 59 69 fd e9 44 fe ff ff
RSP: 0018:ffffc900038cf138 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff81503349
RDX: ffff88801ad1c880 RSI: ffffffff81503356 RDI: 0000000000000001
RBP: ffff8880486f6aec R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffff8880486f6aec
R13: 0000000000000009 R14: 00000000055a0391 R15: ffff888017db8008
FS:  0000000000000000(0000) GS:ffff88806b400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30a28000 CR3: 00000000442c0000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __refcount_dec include/linux/refcount.h:336 [inline]
 refcount_dec include/linux/refcount.h:351 [inline]
 dec_stack_record_count mm/page_owner.c:228 [inline]
 __reset_page_owner+0x2ea/0x370 mm/page_owner.c:266
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1141 [inline]
 free_unref_page_prepare+0x527/0xb10 mm/page_alloc.c:2347
 free_unref_folios+0xf4/0xad0 mm/page_alloc.c:2536
 folios_put_refs+0x49c/0x750 mm/swap.c:1034
 free_pages_and_swap_cache+0x40e/0x4b0 mm/swap_state.c:332
 __tlb_batch_free_encoded_pages+0xf9/0x290 mm/mmu_gather.c:136
 tlb_batch_pages_flush mm/mmu_gather.c:149 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:366 [inline]
 tlb_flush_mmu+0xe9/0x590 mm/mmu_gather.c:373
 zap_pte_range mm/memory.c:1683 [inline]
 zap_pmd_range mm/memory.c:1722 [inline]
 zap_pud_range mm/memory.c:1751 [inline]
 zap_p4d_range mm/memory.c:1772 [inline]
 unmap_page_range+0x1c13/0x3c30 mm/memory.c:1793
 unmap_single_vma+0x194/0x2b0 mm/memory.c:1839
 unmap_vmas+0x22f/0x490 mm/memory.c:1883
 exit_mmap+0x1c1/0xb90 mm/mmap.c:3267
 __mmput+0x12a/0x4d0 kernel/fork.c:1345
 mmput+0x62/0x70 kernel/fork.c:1367
 exit_mm kernel/exit.c:569 [inline]
 do_exit+0x999/0x2c10 kernel/exit.c:865
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1027
 get_signal+0x2616/0x2710 kernel/signal.c:2911
 arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:310
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x14a/0x2a0 kernel/entry/common.c:218
 do_syscall_64+0xdc/0x260 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fcac507dea9
Code: Unable to access opcode bytes at 0x7fcac507de7f.
RSP: 002b:00007fcac5d1f178 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000001 RBX: 00007fcac51abf88 RCX: 00007fcac507dea9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fcac51abf8c
RBP: 00007fcac51abf80 R08: 0000000000000001 R09: 00007fcac5d1f6c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcac51abf8c
R13: 000000000000000b R14: 00007ffea94ae6b0 R15: 00007ffea94ae798
 </TASK>