------------[ cut here ]------------
ODEBUG: free active (active state 0) object: ffff888049502c90 object type: timer_list hint: rose_t0timer_expiry+0x0/0x350
WARNING: CPU: 0 PID: 21853 at lib/debugobjects.c:615 debug_print_object+0x16b/0x1e0
Modules linked in:
CPU: 0 UID: 0 PID: 21853 Comm: syz.1.4125 Not tainted syzkaller #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:debug_print_object+0x16b/0x1e0
Code: 4c 89 ff e8 07 d4 52 fd 4d 8b 0f 48 c7 c7 a0 41 e3 8b 48 8b 34 24 4c 89 ea 89 e9 4d 89 f0 41 54 e8 6a 04 b3 fc 48 83 c4 08 90 <0f> 0b 90 90 ff 05 97 7a d3 0a 48 83 c4 08 5b 41 5c 41 5d 41 5e 41
RSP: 0018:ffffc90000007a10 EFLAGS: 00010292
RAX: d0bfa3c67c06c800 RBX: dffffc0000000000 RCX: ffff8880374c8000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000002
RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1bfa1ec R12: ffffffff8a6cbb10
R13: ffffffff8be34320 R14: ffff888049502c90 R15: ffffffff8b8cdfa0
FS:  0000000000000000(0000) GS:ffff8880b8618000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c38d7dc CR3: 000000000df36000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 debug_check_no_obj_freed+0x3a2/0x470
 kfree+0x112/0x440
 rose_timer_expiry+0x4cb/0x600
 call_timer_fn+0x17e/0x5f0
 __run_timer_base+0x61a/0x860
 run_timer_softirq+0xb7/0x180
 handle_softirqs+0x286/0x870
 __irq_exit_rcu+0xca/0x1f0
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:__folio_rmap_sanity_checks+0x18f/0x7d0
Code: 00 74 08 4c 89 e7 e8 d0 52 11 00 4d 8b 24 24 4c 89 e6 48 83 e6 01 31 ff e8 7e e9 ad ff 4c 89 e0 48 83 e0 01 0f 85 4b 03 00 00 <4d> 8d 2c 2f 4d 8d 24 2f 49 83 c4 c0 0f 1f 44 00 00 e8 7b e4 ad ff
RSP: 0018:ffffc90007ebf510 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffea000467fd80 RCX: ffff8880374c8000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000040 R08: ffffea000467fd87 R09: 1ffffd40008cffb0
R10: dffffc0000000000 R11: fffff940008cffb1 R12: 0000000000000000
R13: dffffc0000000000 R14: 0000000000000001 R15: ffffea000467fd80
 folio_remove_rmap_ptes+0x3b/0xaf0
 unmap_page_range+0x1f7f/0x4370
 unmap_vmas+0x399/0x580
 exit_mmap+0x248/0xb50
 __mmput+0x118/0x420
 exit_mm+0x1da/0x2c0
 do_exit+0x648/0x2300
 do_group_exit+0x21c/0x2d0
 __x64_sys_exit_group+0x3f/0x40
 x64_sys_call+0x21f7/0x2200
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7faeda18ebe9
Code: Unable to access opcode bytes at 0x7faeda18ebbf.
RSP: 002b:00007ffcd7d80f38 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007faeda18ebe9
RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007ffcd7d80f9c R08: 00000002d7d8102f R09: 00000000000927c0
R10: 0000000000000001 R11: 0000000000000246 R12: 000000000000056b
R13: 00000000000927c0 R14: 000000000007412a R15: 00007ffcd7d80ff0
 </TASK>
