[   13.168670] ==================================================================
[   13.169734] BUG: KASAN: double-free in kmem_cache_double_free+0x1e5/0x480
[   13.170904] Free of addr ffff888103a0b000 by task kunit_try_catch/226
[   13.171709] 
[   13.171972] CPU: 0 UID: 0 PID: 226 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc5 #1 PREEMPT(voluntary) 
[   13.172286] Tainted: [B]=BAD_PAGE, [N]=TEST
[   13.172300] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   13.172319] Call Trace:
[   13.172331]  <TASK>
[   13.172346]  dump_stack_lvl+0x73/0xb0
[   13.172377]  print_report+0xd1/0x650
[   13.172399]  ? __virt_addr_valid+0x1db/0x2d0
[   13.172423]  ? kasan_complete_mode_report_info+0x64/0x200
[   13.172445]  ? kmem_cache_double_free+0x1e5/0x480
[   13.172470]  kasan_report_invalid_free+0x10a/0x130
[   13.172494]  ? kmem_cache_double_free+0x1e5/0x480
[   13.172520]  ? kmem_cache_double_free+0x1e5/0x480
[   13.172544]  check_slab_allocation+0x101/0x130
[   13.172566]  __kasan_slab_pre_free+0x28/0x40
[   13.172587]  kmem_cache_free+0xed/0x420
[   13.172606]  ? kmem_cache_alloc_noprof+0x123/0x3f0
[   13.172628]  ? kmem_cache_double_free+0x1e5/0x480
[   13.172655]  kmem_cache_double_free+0x1e5/0x480
[   13.172679]  ? __pfx_kmem_cache_double_free+0x10/0x10
[   13.172703]  ? finish_task_switch.isra.0+0x153/0x700
[   13.172726]  ? __switch_to+0x47/0xf50
[   13.172752]  ? __pfx_read_tsc+0x10/0x10
[   13.172773]  ? ktime_get_ts64+0x86/0x230
[   13.172797]  kunit_try_run_case+0x1a5/0x480
[   13.172906]  ? __pfx_kunit_try_run_case+0x10/0x10
[   13.172943]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   13.172968]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   13.172992]  ? __kthread_parkme+0x82/0x180
[   13.173012]  ? preempt_count_sub+0x50/0x80
[   13.173046]  ? __pfx_kunit_try_run_case+0x10/0x10
[   13.173070]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   13.173096]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   13.173122]  kthread+0x337/0x6f0
[   13.173142]  ? trace_preempt_on+0x20/0xc0
[   13.173166]  ? __pfx_kthread+0x10/0x10
[   13.173186]  ? _raw_spin_unlock_irq+0x47/0x80
[   13.173208]  ? calculate_sigpending+0x7b/0xa0
[   13.173231]  ? __pfx_kthread+0x10/0x10
[   13.173252]  ret_from_fork+0x116/0x1d0
[   13.173269]  ? __pfx_kthread+0x10/0x10
[   13.173291]  ret_from_fork_asm+0x1a/0x30
[   13.173321]  </TASK>
[   13.173331] 
[   13.190403] Allocated by task 226:
[   13.190863]  kasan_save_stack+0x45/0x70
[   13.191361]  kasan_save_track+0x18/0x40
[   13.191756]  kasan_save_alloc_info+0x3b/0x50
[   13.192232]  __kasan_slab_alloc+0x91/0xa0
[   13.192404]  kmem_cache_alloc_noprof+0x123/0x3f0
[   13.192562]  kmem_cache_double_free+0x14f/0x480
[   13.192721]  kunit_try_run_case+0x1a5/0x480
[   13.192871]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   13.193632]  kthread+0x337/0x6f0
[   13.194116]  ret_from_fork+0x116/0x1d0
[   13.194564]  ret_from_fork_asm+0x1a/0x30
[   13.195121] 
[   13.195418] Freed by task 226:
[   13.195823]  kasan_save_stack+0x45/0x70
[   13.196492]  kasan_save_track+0x18/0x40
[   13.196876]  kasan_save_free_info+0x3f/0x60
[   13.197446]  __kasan_slab_free+0x56/0x70
[   13.197599]  kmem_cache_free+0x249/0x420
[   13.198186]  kmem_cache_double_free+0x16a/0x480
[   13.198755]  kunit_try_run_case+0x1a5/0x480
[   13.199231]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   13.199622]  kthread+0x337/0x6f0
[   13.199754]  ret_from_fork+0x116/0x1d0
[   13.200157]  ret_from_fork_asm+0x1a/0x30
[   13.200713] 
[   13.201047] The buggy address belongs to the object at ffff888103a0b000
[   13.201047]  which belongs to the cache test_cache of size 200
[   13.202470] The buggy address is located 0 bytes inside of
[   13.202470]  200-byte region [ffff888103a0b000, ffff888103a0b0c8)
[   13.203344] 
[   13.203455] The buggy address belongs to the physical page:
[   13.204053] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103a0b
[   13.204308] flags: 0x200000000000000(node=0|zone=2)
[   13.204473] page_type: f5(slab)
[   13.204593] raw: 0200000000000000 ffff888101654b40 dead000000000122 0000000000000000
[   13.204882] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000
[   13.205639] page dumped because: kasan: bad access detected
[   13.206124] 
[   13.206304] Memory state around the buggy address:
[   13.206556]  ffff888103a0af00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   13.206774]  ffff888103a0af80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   13.207543] >ffff888103a0b000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   13.208368]                    ^
[   13.208717]  ffff888103a0b080: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc
[   13.209156]  ffff888103a0b100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   13.209665] ==================================================================