[   20.310111] ==================================================================
[   20.311227] BUG: KASAN: slab-use-after-free in kmalloc_double_kzfree+0x174/0x318
[   20.311961] Read of size 1 at addr fff00000c5bb2280 by task kunit_try_catch/179
[   20.313319] 
[   20.313548] CPU: 0 UID: 0 PID: 179 Comm: kunit_try_catch Tainted: G    B            N 6.12.32-rc1 #1
[   20.313749] Tainted: [B]=BAD_PAGE, [N]=TEST
[   20.313819] Hardware name: linux,dummy-virt (DT)
[   20.313892] Call trace:
[   20.313945]  dump_backtrace+0x9c/0x128
[   20.314068]  show_stack+0x20/0x38
[   20.314159]  dump_stack_lvl+0x8c/0xd0
[   20.314221]  print_report+0x118/0x5f0
[   20.314293]  kasan_report+0xdc/0x128
[   20.314334]  __kasan_check_byte+0x54/0x70
[   20.314379]  kfree_sensitive+0x30/0xb0
[   20.314421]  kmalloc_double_kzfree+0x174/0x318
[   20.314467]  kunit_try_run_case+0x170/0x3f0
[   20.314514]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   20.314564]  kthread+0x24c/0x2d0
[   20.314605]  ret_from_fork+0x10/0x20
[   20.314653] 
[   20.320907] Allocated by task 179:
[   20.321410]  kasan_save_stack+0x3c/0x68
[   20.321950]  kasan_save_track+0x20/0x40
[   20.322331]  kasan_save_alloc_info+0x40/0x58
[   20.322772]  __kasan_kmalloc+0xd4/0xd8
[   20.323113]  __kmalloc_cache_noprof+0x154/0x320
[   20.323645]  kmalloc_double_kzfree+0xb8/0x318
[   20.324146]  kunit_try_run_case+0x170/0x3f0
[   20.324557]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   20.325037]  kthread+0x24c/0x2d0
[   20.325712]  ret_from_fork+0x10/0x20
[   20.326181] 
[   20.326487] Freed by task 179:
[   20.326852]  kasan_save_stack+0x3c/0x68
[   20.327594]  kasan_save_track+0x20/0x40
[   20.327884]  kasan_save_free_info+0x4c/0x78
[   20.328152]  __kasan_slab_free+0x6c/0x98
[   20.328436]  kfree+0x110/0x3b8
[   20.329012]  kfree_sensitive+0x80/0xb0
[   20.329554]  kmalloc_double_kzfree+0x120/0x318
[   20.330103]  kunit_try_run_case+0x170/0x3f0
[   20.330527]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   20.331141]  kthread+0x24c/0x2d0
[   20.331508]  ret_from_fork+0x10/0x20
[   20.331937] 
[   20.332204] The buggy address belongs to the object at fff00000c5bb2280
[   20.332204]  which belongs to the cache kmalloc-16 of size 16
[   20.333178] The buggy address is located 0 bytes inside of
[   20.333178]  freed 16-byte region [fff00000c5bb2280, fff00000c5bb2290)
[   20.334273] 
[   20.334612] The buggy address belongs to the physical page:
[   20.334944] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105bb2
[   20.336008] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   20.336532] page_type: f5(slab)
[   20.336881] raw: 0bfffe0000000000 fff00000c0001640 dead000000000122 0000000000000000
[   20.337682] raw: 0000000000000000 0000000080800080 00000001f5000000 0000000000000000
[   20.338334] page dumped because: kasan: bad access detected
[   20.338888] 
[   20.339335] Memory state around the buggy address:
[   20.340100]  fff00000c5bb2180: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc
[   20.340676]  fff00000c5bb2200: fa fb fc fc 00 04 fc fc fa fb fc fc fa fb fc fc
[   20.341291] >fff00000c5bb2280: fa fb fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   20.341905]                    ^
[   20.342273]  fff00000c5bb2300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   20.342916]  fff00000c5bb2380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   20.343524] ==================================================================