[   11.536164] ==================================================================
[   11.536756] BUG: KASAN: slab-use-after-free in kmalloc_uaf_16+0x47b/0x4c0
[   11.537037] Read of size 16 at addr ffff8881023f82c0 by task kunit_try_catch/188
[   11.537645] 
[   11.537759] CPU: 0 UID: 0 PID: 188 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-rc3 #1 PREEMPT(voluntary) 
[   11.537814] Tainted: [B]=BAD_PAGE, [N]=TEST
[   11.537825] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   11.537845] Call Trace:
[   11.537856]  <TASK>
[   11.537871]  dump_stack_lvl+0x73/0xb0
[   11.537896]  print_report+0xd1/0x650
[   11.537918]  ? __virt_addr_valid+0x1db/0x2d0
[   11.537939]  ? kmalloc_uaf_16+0x47b/0x4c0
[   11.537960]  ? kasan_complete_mode_report_info+0x64/0x200
[   11.537982]  ? kmalloc_uaf_16+0x47b/0x4c0
[   11.538004]  kasan_report+0x141/0x180
[   11.538026]  ? kmalloc_uaf_16+0x47b/0x4c0
[   11.538053]  __asan_report_load16_noabort+0x18/0x20
[   11.538073]  kmalloc_uaf_16+0x47b/0x4c0
[   11.538095]  ? __pfx_kmalloc_uaf_16+0x10/0x10
[   11.538117]  ? __schedule+0x10cc/0x2b30
[   11.538156]  ? __pfx_read_tsc+0x10/0x10
[   11.538176]  ? ktime_get_ts64+0x86/0x230
[   11.538201]  kunit_try_run_case+0x1a5/0x480
[   11.538224]  ? __pfx_kunit_try_run_case+0x10/0x10
[   11.538245]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   11.538268]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   11.538292]  ? __kthread_parkme+0x82/0x180
[   11.538313]  ? preempt_count_sub+0x50/0x80
[   11.538349]  ? __pfx_kunit_try_run_case+0x10/0x10
[   11.538372]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   11.538449]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   11.538474]  kthread+0x337/0x6f0
[   11.538495]  ? trace_preempt_on+0x20/0xc0
[   11.538519]  ? __pfx_kthread+0x10/0x10
[   11.538541]  ? _raw_spin_unlock_irq+0x47/0x80
[   11.538562]  ? calculate_sigpending+0x7b/0xa0
[   11.538583]  ? __pfx_kthread+0x10/0x10
[   11.538605]  ret_from_fork+0x41/0x80
[   11.538626]  ? __pfx_kthread+0x10/0x10
[   11.538648]  ret_from_fork_asm+0x1a/0x30
[   11.538679]  </TASK>
[   11.538690] 
[   11.546025] Allocated by task 188:
[   11.546161]  kasan_save_stack+0x45/0x70
[   11.546542]  kasan_save_track+0x18/0x40
[   11.546743]  kasan_save_alloc_info+0x3b/0x50
[   11.546949]  __kasan_kmalloc+0xb7/0xc0
[   11.547140]  __kmalloc_cache_noprof+0x189/0x420
[   11.547349]  kmalloc_uaf_16+0x15b/0x4c0
[   11.547505]  kunit_try_run_case+0x1a5/0x480
[   11.547764]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   11.547972]  kthread+0x337/0x6f0
[   11.548093]  ret_from_fork+0x41/0x80
[   11.548349]  ret_from_fork_asm+0x1a/0x30
[   11.548869] 
[   11.548953] Freed by task 188:
[   11.549065]  kasan_save_stack+0x45/0x70
[   11.549204]  kasan_save_track+0x18/0x40
[   11.549558]  kasan_save_free_info+0x3f/0x60
[   11.549767]  __kasan_slab_free+0x56/0x70
[   11.549968]  kfree+0x222/0x3f0
[   11.550124]  kmalloc_uaf_16+0x1d6/0x4c0
[   11.550268]  kunit_try_run_case+0x1a5/0x480
[   11.550588]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   11.550791]  kthread+0x337/0x6f0
[   11.550911]  ret_from_fork+0x41/0x80
[   11.551040]  ret_from_fork_asm+0x1a/0x30
[   11.551358] 
[   11.551555] The buggy address belongs to the object at ffff8881023f82c0
[   11.551555]  which belongs to the cache kmalloc-16 of size 16
[   11.552031] The buggy address is located 0 bytes inside of
[   11.552031]  freed 16-byte region [ffff8881023f82c0, ffff8881023f82d0)
[   11.552406] 
[   11.552537] The buggy address belongs to the physical page:
[   11.552789] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1023f8
[   11.553133] flags: 0x200000000000000(node=0|zone=2)
[   11.553342] page_type: f5(slab)
[   11.553464] raw: 0200000000000000 ffff888100041640 dead000000000122 0000000000000000
[   11.553932] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000
[   11.554284] page dumped because: kasan: bad access detected
[   11.554559] 
[   11.554672] Memory state around the buggy address:
[   11.554961]  ffff8881023f8180: 00 02 fc fc 00 02 fc fc 00 06 fc fc 00 06 fc fc
[   11.555209]  ffff8881023f8200: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc
[   11.555634] >ffff8881023f8280: fa fb fc fc 00 00 fc fc fa fb fc fc fc fc fc fc
[   11.555886]                                            ^
[   11.556110]  ffff8881023f8300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   11.556381]  ffff8881023f8380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   11.556640] ==================================================================

[   21.410880] ==================================================================
[   21.411917] BUG: KASAN: slab-use-after-free in kmalloc_uaf_16+0x3bc/0x438
[   21.412568] Read of size 16 at addr ffff00000aa08660 by task kunit_try_catch/222
[   21.413251] 
[   21.413416] CPU: 3 UID: 0 PID: 222 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-rc3 #1 PREEMPT 
[   21.413464] Tainted: [B]=BAD_PAGE, [N]=TEST
[   21.413478] Hardware name: Radxa ROCK Pi 4B (DT)
[   21.413496] Call trace:
[   21.413507]  show_stack+0x20/0x38 (C)
[   21.413540]  dump_stack_lvl+0x8c/0xd0
[   21.413571]  print_report+0x118/0x608
[   21.413600]  kasan_report+0xdc/0x128
[   21.413628]  __asan_report_load16_noabort+0x20/0x30
[   21.413661]  kmalloc_uaf_16+0x3bc/0x438
[   21.413694]  kunit_try_run_case+0x170/0x3f0
[   21.413729]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   21.413768]  kthread+0x328/0x630
[   21.413802]  ret_from_fork+0x10/0x20
[   21.413834] 
[   21.419390] Allocated by task 222:
[   21.419716]  kasan_save_stack+0x3c/0x68
[   21.420088]  kasan_save_track+0x20/0x40
[   21.420459]  kasan_save_alloc_info+0x40/0x58
[   21.420871]  __kasan_kmalloc+0xd4/0xd8
[   21.421234]  __kmalloc_cache_noprof+0x15c/0x3c0
[   21.421674]  kmalloc_uaf_16+0x140/0x438
[   21.422050]  kunit_try_run_case+0x170/0x3f0
[   21.422456]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   21.422979]  kthread+0x328/0x630
[   21.423302]  ret_from_fork+0x10/0x20
[   21.423651] 
[   21.423803] Freed by task 222:
[   21.424097]  kasan_save_stack+0x3c/0x68
[   21.424468]  kasan_save_track+0x20/0x40
[   21.424839]  kasan_save_free_info+0x4c/0x78
[   21.425243]  __kasan_slab_free+0x6c/0x98
[   21.425622]  kfree+0x214/0x3c8
[   21.425929]  kmalloc_uaf_16+0x190/0x438
[   21.426305]  kunit_try_run_case+0x170/0x3f0
[   21.426709]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   21.427232]  kthread+0x328/0x630
[   21.427554]  ret_from_fork+0x10/0x20
[   21.427903] 
[   21.428056] The buggy address belongs to the object at ffff00000aa08660
[   21.428056]  which belongs to the cache kmalloc-16 of size 16
[   21.429172] The buggy address is located 0 bytes inside of
[   21.429172]  freed 16-byte region [ffff00000aa08660, ffff00000aa08670)
[   21.430260] 
[   21.430414] The buggy address belongs to the physical page:
[   21.430929] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xaa08
[   21.431653] flags: 0x3fffe0000000000(node=0|zone=0|lastcpupid=0x1ffff)
[   21.432264] page_type: f5(slab)
[   21.432577] raw: 03fffe0000000000 ffff000000402640 dead000000000122 0000000000000000
[   21.433292] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000
[   21.433998] page dumped because: kasan: bad access detected
[   21.434512] 
[   21.434664] Memory state around the buggy address:
[   21.435112]  ffff00000aa08500: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc
[   21.435777]  ffff00000aa08580: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc
[   21.436442] >ffff00000aa08600: fa fb fc fc fa fb fc fc 00 00 fc fc fa fb fc fc
[   21.437103]                                                        ^
[   21.437689]  ffff00000aa08680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   21.438354]  ffff00000aa08700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   21.439015] ==================================================================