[   11.763472] ==================================================================
[   11.764057] BUG: KASAN: double-free in kfree_sensitive+0x2e/0x90
[   11.764347] Free of addr ffff888102ae9120 by task kunit_try_catch/209
[   11.764639] 
[   11.764746] CPU: 0 UID: 0 PID: 209 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-next-20250605 #1 PREEMPT(voluntary) 
[   11.764786] Tainted: [B]=BAD_PAGE, [N]=TEST
[   11.764796] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   11.764815] Call Trace:
[   11.764825]  <TASK>
[   11.764838]  dump_stack_lvl+0x73/0xb0
[   11.764861]  print_report+0xd1/0x650
[   11.764883]  ? __virt_addr_valid+0x1db/0x2d0
[   11.764918]  ? kasan_complete_mode_report_info+0x64/0x200
[   11.764940]  ? kfree_sensitive+0x2e/0x90
[   11.764960]  kasan_report_invalid_free+0x10a/0x130
[   11.764984]  ? kfree_sensitive+0x2e/0x90
[   11.765005]  ? kfree_sensitive+0x2e/0x90
[   11.765197]  check_slab_allocation+0x101/0x130
[   11.765220]  __kasan_slab_pre_free+0x28/0x40
[   11.765241]  kfree+0xf0/0x3f0
[   11.765262]  ? kfree_sensitive+0x2e/0x90
[   11.765284]  kfree_sensitive+0x2e/0x90
[   11.765303]  kmalloc_double_kzfree+0x19c/0x350
[   11.765326]  ? __pfx_kmalloc_double_kzfree+0x10/0x10
[   11.765349]  ? __schedule+0x10cc/0x2b60
[   11.765373]  ? __pfx_read_tsc+0x10/0x10
[   11.765393]  ? ktime_get_ts64+0x86/0x230
[   11.765417]  kunit_try_run_case+0x1a5/0x480
[   11.765437]  ? __pfx_kunit_try_run_case+0x10/0x10
[   11.765456]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   11.765480]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   11.765504]  ? __kthread_parkme+0x82/0x180
[   11.765524]  ? preempt_count_sub+0x50/0x80
[   11.765546]  ? __pfx_kunit_try_run_case+0x10/0x10
[   11.765567]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   11.765590]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   11.765614]  kthread+0x337/0x6f0
[   11.765644]  ? trace_preempt_on+0x20/0xc0
[   11.765665]  ? __pfx_kthread+0x10/0x10
[   11.765685]  ? _raw_spin_unlock_irq+0x47/0x80
[   11.765707]  ? calculate_sigpending+0x7b/0xa0
[   11.765730]  ? __pfx_kthread+0x10/0x10
[   11.765750]  ret_from_fork+0x116/0x1d0
[   11.765768]  ? __pfx_kthread+0x10/0x10
[   11.765788]  ret_from_fork_asm+0x1a/0x30
[   11.765817]  </TASK>
[   11.765827] 
[   11.774218] Allocated by task 209:
[   11.774405]  kasan_save_stack+0x45/0x70
[   11.774556]  kasan_save_track+0x18/0x40
[   11.774737]  kasan_save_alloc_info+0x3b/0x50
[   11.775043]  __kasan_kmalloc+0xb7/0xc0
[   11.775217]  __kmalloc_cache_noprof+0x189/0x420
[   11.775398]  kmalloc_double_kzfree+0xa9/0x350
[   11.775546]  kunit_try_run_case+0x1a5/0x480
[   11.775687]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   11.775934]  kthread+0x337/0x6f0
[   11.776211]  ret_from_fork+0x116/0x1d0
[   11.776402]  ret_from_fork_asm+0x1a/0x30
[   11.776598] 
[   11.776754] Freed by task 209:
[   11.776932]  kasan_save_stack+0x45/0x70
[   11.777141]  kasan_save_track+0x18/0x40
[   11.777393]  kasan_save_free_info+0x3f/0x60
[   11.777543]  __kasan_slab_free+0x56/0x70
[   11.777844]  kfree+0x222/0x3f0
[   11.778152]  kfree_sensitive+0x67/0x90
[   11.778328]  kmalloc_double_kzfree+0x12b/0x350
[   11.778519]  kunit_try_run_case+0x1a5/0x480
[   11.778727]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   11.779005]  kthread+0x337/0x6f0
[   11.779164]  ret_from_fork+0x116/0x1d0
[   11.779311]  ret_from_fork_asm+0x1a/0x30
[   11.779508] 
[   11.779578] The buggy address belongs to the object at ffff888102ae9120
[   11.779578]  which belongs to the cache kmalloc-16 of size 16
[   11.779939] The buggy address is located 0 bytes inside of
[   11.779939]  16-byte region [ffff888102ae9120, ffff888102ae9130)
[   11.780419] 
[   11.780518] The buggy address belongs to the physical page:
[   11.780934] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102ae9
[   11.781527] flags: 0x200000000000000(node=0|zone=2)
[   11.781686] page_type: f5(slab)
[   11.781804] raw: 0200000000000000 ffff888100041640 dead000000000122 0000000000000000
[   11.782535] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000
[   11.783080] page dumped because: kasan: bad access detected
[   11.783286] 
[   11.783354] Memory state around the buggy address:
[   11.783511]  ffff888102ae9000: 00 02 fc fc 00 02 fc fc fa fb fc fc fa fb fc fc
[   11.783836]  ffff888102ae9080: fa fb fc fc 00 05 fc fc fa fb fc fc fa fb fc fc
[   11.784238] >ffff888102ae9100: fa fb fc fc fa fb fc fc fc fc fc fc fc fc fc fc
[   11.784525]                                ^
[   11.784697]  ffff888102ae9180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   11.785012]  ffff888102ae9200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   11.785324] ==================================================================