------------[ cut here ]------------
WARNING: CPU: 1 PID: 1 at mm/slub.c:4550 slab_free_after_rcu_debug+0x18b/0x270 mm/slub.c:4550
Modules linked in:
CPU: 1 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.11.0-rc2-next-20240809-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:slab_free_after_rcu_debug+0x18b/0x270 mm/slub.c:4550
Code: 48 89 04 19 48 8d 4a 08 49 8b 34 24 65 48 0f c7 0e 75 c8 4c 89 f7 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d e9 36 55 ff ff 90 <0f> 0b 90 eb 92 90 0f 0b 90 eb 8c 90 0f 0b 90 eb 86 41 8b 54 24 1c
RSP: 0000:ffffc90000a18bc0 EFLAGS: 00010286
RAX: ffff88823be00000 RBX: ffff888020ab8dc0 RCX: 00000000000d2fe0
RDX: ffffea0000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000a18e30 R08: ffffffff8142e7cc R09: 1ffffffff26eb903
R10: dffffc0000000000 R11: ffffffff81f13a00 R12: ffffffff817c10e7
R13: ffff88823bed2fe8 R14: ffff88823bed2fe0 R15: ffffea000082ae00
FS:  0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000000e734000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 rcu_do_batch kernel/rcu/tree.c:2567 [inline]
 rcu_core+0xaaa/0x17a0 kernel/rcu/tree.c:2823
 handle_softirqs+0x2c4/0x970 kernel/softirq.c:554
 __do_softirq kernel/softirq.c:588 [inline]
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1037 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1037
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__sanitizer_cov_trace_pc+0x5d/0x70 kernel/kcov.c:234
Code: f8 15 00 00 83 fa 02 75 21 48 8b 91 00 16 00 00 48 8b 32 48 8d 7e 01 8b 89 fc 15 00 00 48 39 cf 73 08 48 89 3a 48 89 44 f2 08 <c3> cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 90 90 90
RSP: 0000:ffffc900000673a0 EFLAGS: 00000293
RAX: ffffffff81414dcc RBX: 0000000000000005 RCX: ffff888017eb0000
RDX: 0000000000000000 RSI: ffffffff8bbd89c2 RDI: ffffffff8bbd8949
RBP: 1ffff9200000ce90 R08: ffffffff81414c60 R09: ffffc90000067570
R10: 0000000000000003 R11: ffffffff817fb7c0 R12: ffffffff90940844
R13: dffffc0000000000 R14: 1ffff9200000ce90 R15: ffffffff913e756c
 unwind_next_frame+0x67c/0x2a00 arch/x86/kernel/unwind_orc.c:495
 arch_stack_walk+0x151/0x1b0 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579
 poison_slab_object mm/kasan/common.c:247 [inline]
 __kasan_slab_free+0x60/0x70 mm/kasan/common.c:264
 kasan_slab_free include/linux/kasan.h:220 [inline]
 slab_free_hook mm/slub.c:2292 [inline]
 slab_free mm/slub.c:4513 [inline]
 kmem_cache_free+0x180/0x3b0 mm/slub.c:4615
 __merge_or_add_vmap_area mm/vmalloc.c:1432 [inline]
 merge_or_add_vmap_area_augment mm/vmalloc.c:1458 [inline]
 reclaim_list_global+0x12af/0x1350 mm/vmalloc.c:2126
 decay_va_pool_node+0xf68/0xfc0 mm/vmalloc.c:2187
 __purge_vmap_area_lazy+0x15d/0xae0 mm/vmalloc.c:2265
 _vm_unmap_aliases+0x79d/0x840 mm/vmalloc.c:2901
 change_page_attr_set_clr+0x2fe/0xdb0 arch/x86/mm/pat/set_memory.c:1881
 change_page_attr_set arch/x86/mm/pat/set_memory.c:1922 [inline]
 set_memory_rw+0xa5/0xf0 arch/x86/mm/pat/set_memory.c:2130
 free_init_pages arch/x86/mm/init.c:925 [inline]
 free_kernel_image_pages arch/x86/mm/init.c:943 [inline]
 free_initmem+0x83/0x110 arch/x86/mm/init.c:970
 kernel_init+0x31/0x2b0 init/main.c:1476
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:144
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
----------------
Code disassembly (best guess):
   0:	f8                   	clc
   1:	15 00 00 83 fa       	adc    $0xfa830000,%eax
   6:	02 75 21             	add    0x21(%rbp),%dh
   9:	48 8b 91 00 16 00 00 	mov    0x1600(%rcx),%rdx
  10:	48 8b 32             	mov    (%rdx),%rsi
  13:	48 8d 7e 01          	lea    0x1(%rsi),%rdi
  17:	8b 89 fc 15 00 00    	mov    0x15fc(%rcx),%ecx
  1d:	48 39 cf             	cmp    %rcx,%rdi
  20:	73 08                	jae    0x2a
  22:	48 89 3a             	mov    %rdi,(%rdx)
  25:	48 89 44 f2 08       	mov    %rax,0x8(%rdx,%rsi,8)
* 2a:	c3                   	ret <-- trapping instruction
  2b:	cc                   	int3
  2c:	cc                   	int3
  2d:	cc                   	int3
  2e:	cc                   	int3
  2f:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  36:	00 00 00
  39:	0f 1f 40 00          	nopl   0x0(%rax)
  3d:	90                   	nop
  3e:	90                   	nop
  3f:	90                   	nop