[   11.464119] ==================================================================
[   11.465298] BUG: KASAN: double-free in kfree_sensitive+0x2e/0x90
[   11.466289] Free of addr ffff8881014ec8e0 by task kunit_try_catch/212
[   11.467099] 
[   11.467461] CPU: 0 UID: 0 PID: 212 Comm: kunit_try_catch Tainted: G    B            N  6.15.8-rc1 #1 PREEMPT(voluntary) 
[   11.467632] Tainted: [B]=BAD_PAGE, [N]=TEST
[   11.467649] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   11.467670] Call Trace:
[   11.467697]  <TASK>
[   11.467714]  dump_stack_lvl+0x73/0xb0
[   11.467787]  print_report+0xd1/0x610
[   11.467811]  ? __virt_addr_valid+0x1db/0x2d0
[   11.467845]  ? kasan_complete_mode_report_info+0x64/0x200
[   11.467866]  ? kfree_sensitive+0x2e/0x90
[   11.467888]  kasan_report_invalid_free+0x10a/0x130
[   11.467912]  ? kfree_sensitive+0x2e/0x90
[   11.467933]  ? kfree_sensitive+0x2e/0x90
[   11.467954]  check_slab_allocation+0x101/0x130
[   11.467976]  __kasan_slab_pre_free+0x28/0x40
[   11.467997]  kfree+0xf0/0x3f0
[   11.468015]  ? kfree_sensitive+0x2e/0x90
[   11.468037]  kfree_sensitive+0x2e/0x90
[   11.468057]  kmalloc_double_kzfree+0x19c/0x350
[   11.468076]  ? __pfx_kmalloc_double_kzfree+0x10/0x10
[   11.468095]  ? __schedule+0x10c6/0x2b60
[   11.468118]  ? __pfx_read_tsc+0x10/0x10
[   11.468139]  ? ktime_get_ts64+0x86/0x230
[   11.468163]  kunit_try_run_case+0x1a5/0x480
[   11.468183]  ? __pfx_kunit_try_run_case+0x10/0x10
[   11.468201]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   11.468221]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   11.468256]  ? __kthread_parkme+0x82/0x180
[   11.468276]  ? preempt_count_sub+0x50/0x80
[   11.468300]  ? __pfx_kunit_try_run_case+0x10/0x10
[   11.468320]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   11.468342]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   11.468364]  kthread+0x337/0x6f0
[   11.468380]  ? trace_preempt_on+0x20/0xc0
[   11.468403]  ? __pfx_kthread+0x10/0x10
[   11.468420]  ? _raw_spin_unlock_irq+0x47/0x80
[   11.468441]  ? calculate_sigpending+0x7b/0xa0
[   11.468463]  ? __pfx_kthread+0x10/0x10
[   11.468481]  ret_from_fork+0x41/0x80
[   11.468501]  ? __pfx_kthread+0x10/0x10
[   11.468519]  ret_from_fork_asm+0x1a/0x30
[   11.468549]  </TASK>
[   11.468559] 
[   11.481784] Allocated by task 212:
[   11.482202]  kasan_save_stack+0x45/0x70
[   11.482416]  kasan_save_track+0x18/0x40
[   11.482757]  kasan_save_alloc_info+0x3b/0x50
[   11.483150]  __kasan_kmalloc+0xb7/0xc0
[   11.483296]  __kmalloc_cache_noprof+0x189/0x420
[   11.483475]  kmalloc_double_kzfree+0xa9/0x350
[   11.483926]  kunit_try_run_case+0x1a5/0x480
[   11.484377]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   11.484904]  kthread+0x337/0x6f0
[   11.485102]  ret_from_fork+0x41/0x80
[   11.485473]  ret_from_fork_asm+0x1a/0x30
[   11.485614] 
[   11.485870] Freed by task 212:
[   11.486178]  kasan_save_stack+0x45/0x70
[   11.486462]  kasan_save_track+0x18/0x40
[   11.486742]  kasan_save_free_info+0x3f/0x60
[   11.487024]  __kasan_slab_free+0x56/0x70
[   11.487174]  kfree+0x222/0x3f0
[   11.487301]  kfree_sensitive+0x67/0x90
[   11.487585]  kmalloc_double_kzfree+0x12b/0x350
[   11.488183]  kunit_try_run_case+0x1a5/0x480
[   11.488721]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   11.489287]  kthread+0x337/0x6f0
[   11.489614]  ret_from_fork+0x41/0x80
[   11.490108]  ret_from_fork_asm+0x1a/0x30
[   11.490513] 
[   11.490587] The buggy address belongs to the object at ffff8881014ec8e0
[   11.490587]  which belongs to the cache kmalloc-16 of size 16
[   11.491483] The buggy address is located 0 bytes inside of
[   11.491483]  16-byte region [ffff8881014ec8e0, ffff8881014ec8f0)
[   11.492866] 
[   11.492952] The buggy address belongs to the physical page:
[   11.493130] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1014ec
[   11.493425] flags: 0x200000000000000(node=0|zone=2)
[   11.493874] page_type: f5(slab)
[   11.494256] raw: 0200000000000000 ffff888100041640 dead000000000122 0000000000000000
[   11.495267] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000
[   11.496085] page dumped because: kasan: bad access detected
[   11.496717] 
[   11.497038] Memory state around the buggy address:
[   11.497365]  ffff8881014ec780: fa fb fc fc 00 02 fc fc 00 05 fc fc 00 02 fc fc
[   11.497946]  ffff8881014ec800: 00 02 fc fc 00 02 fc fc 00 02 fc fc fa fb fc fc
[   11.498369] >ffff8881014ec880: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc
[   11.498909]                                                        ^
[   11.499108]  ffff8881014ec900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   11.499338]  ffff8881014ec980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   11.499635] ==================================================================