Hay
Date
July 11, 2025, 10:11 a.m.

Environment
e850-96
qemu-arm64
qemu-x86_64

[   51.141783] ==================================================================
[   51.141983] BUG: KASAN: invalid-free in kmem_cache_invalid_free+0x184/0x3c8
[   51.148275] Free of addr ffff000803b98001 by task kunit_try_catch/295
[   51.154699] 
[   51.156184] CPU: 5 UID: 0 PID: 295 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc5-next-20250711 #1 PREEMPT 
[   51.156236] Tainted: [B]=BAD_PAGE, [N]=TEST
[   51.156253] Hardware name: WinLink E850-96 board (DT)
[   51.156278] Call trace:
[   51.156291]  show_stack+0x20/0x38 (C)
[   51.156328]  dump_stack_lvl+0x8c/0xd0
[   51.156363]  print_report+0x118/0x5d0
[   51.156392]  kasan_report_invalid_free+0xc0/0xe8
[   51.156425]  check_slab_allocation+0xfc/0x108
[   51.156460]  __kasan_slab_pre_free+0x2c/0x48
[   51.156493]  kmem_cache_free+0xf0/0x468
[   51.156527]  kmem_cache_invalid_free+0x184/0x3c8
[   51.156560]  kunit_try_run_case+0x170/0x3f0
[   51.156597]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   51.156634]  kthread+0x328/0x630
[   51.156663]  ret_from_fork+0x10/0x20
[   51.156699] 
[   51.229350] Allocated by task 295:
[   51.232737]  kasan_save_stack+0x3c/0x68
[   51.236553]  kasan_save_track+0x20/0x40
[   51.240373]  kasan_save_alloc_info+0x40/0x58
[   51.244626]  __kasan_slab_alloc+0xa8/0xb0
[   51.248619]  kmem_cache_alloc_noprof+0x10c/0x398
[   51.253219]  kmem_cache_invalid_free+0x12c/0x3c8
[   51.257821]  kunit_try_run_case+0x170/0x3f0
[   51.261987]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   51.267455]  kthread+0x328/0x630
[   51.270667]  ret_from_fork+0x10/0x20
[   51.274226] 
[   51.275705] The buggy address belongs to the object at ffff000803b98000
[   51.275705]  which belongs to the cache test_cache of size 200
[   51.288116] The buggy address is located 1 bytes inside of
[   51.288116]  200-byte region [ffff000803b98000, ffff000803b980c8)
[   51.299662] 
[   51.301139] The buggy address belongs to the physical page:
[   51.306695] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x883b98
[   51.314679] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   51.322319] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff)
[   51.329261] page_type: f5(slab)
[   51.332399] raw: 0bfffe0000000040 ffff000801e59900 dead000000000122 0000000000000000
[   51.340117] raw: 0000000000000000 00000000801f001f 00000000f5000000 0000000000000000
[   51.347846] head: 0bfffe0000000040 ffff000801e59900 dead000000000122 0000000000000000
[   51.355655] head: 0000000000000000 00000000801f001f 00000000f5000000 0000000000000000
[   51.363470] head: 0bfffe0000000001 fffffdffe00ee601 00000000ffffffff 00000000ffffffff
[   51.371280] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002
[   51.379085] page dumped because: kasan: bad access detected
[   51.384641] 
[   51.386116] Memory state around the buggy address:
[   51.390898]  ffff000803b97f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   51.398099]  ffff000803b97f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   51.405305] >ffff000803b98000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   51.412506]                    ^
[   51.415721]  ffff000803b98080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc
[   51.422926]  ffff000803b98100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   51.430128] ==================================================================

[   31.053386] ==================================================================
[   31.053531] BUG: KASAN: invalid-free in kmem_cache_invalid_free+0x184/0x3c8
[   31.053614] Free of addr fff00000c99ff001 by task kunit_try_catch/242
[   31.053660] 
[   31.053704] CPU: 1 UID: 0 PID: 242 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc5-next-20250711 #1 PREEMPT 
[   31.054218] Tainted: [B]=BAD_PAGE, [N]=TEST
[   31.054256] Hardware name: linux,dummy-virt (DT)
[   31.054607] Call trace:
[   31.054689]  show_stack+0x20/0x38 (C)
[   31.055041]  dump_stack_lvl+0x8c/0xd0
[   31.055112]  print_report+0x118/0x5d0
[   31.055545]  kasan_report_invalid_free+0xc0/0xe8
[   31.055607]  check_slab_allocation+0xfc/0x108
[   31.055670]  __kasan_slab_pre_free+0x2c/0x48
[   31.055721]  kmem_cache_free+0xf0/0x468
[   31.055771]  kmem_cache_invalid_free+0x184/0x3c8
[   31.055822]  kunit_try_run_case+0x170/0x3f0
[   31.056385]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   31.056446]  kthread+0x328/0x630
[   31.056957]  ret_from_fork+0x10/0x20
[   31.057015] 
[   31.057036] Allocated by task 242:
[   31.057075]  kasan_save_stack+0x3c/0x68
[   31.057120]  kasan_save_track+0x20/0x40
[   31.057589]  kasan_save_alloc_info+0x40/0x58
[   31.057851]  __kasan_slab_alloc+0xa8/0xb0
[   31.057999]  kmem_cache_alloc_noprof+0x10c/0x398
[   31.058386]  kmem_cache_invalid_free+0x12c/0x3c8
[   31.058567]  kunit_try_run_case+0x170/0x3f0
[   31.058620]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   31.058864]  kthread+0x328/0x630
[   31.059285]  ret_from_fork+0x10/0x20
[   31.059361] 
[   31.059382] The buggy address belongs to the object at fff00000c99ff000
[   31.059382]  which belongs to the cache test_cache of size 200
[   31.059445] The buggy address is located 1 bytes inside of
[   31.059445]  200-byte region [fff00000c99ff000, fff00000c99ff0c8)
[   31.060050] 
[   31.060088] The buggy address belongs to the physical page:
[   31.060203] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1099ff
[   31.060462] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   31.060922] page_type: f5(slab)
[   31.061042] raw: 0bfffe0000000000 fff00000c3e18640 dead000000000122 0000000000000000
[   31.061418] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000
[   31.061502] page dumped because: kasan: bad access detected
[   31.061698] 
[   31.061722] Memory state around the buggy address:
[   31.061758]  fff00000c99fef00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   31.061804]  fff00000c99fef80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   31.061848] >fff00000c99ff000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   31.062359]                    ^
[   31.062435]  fff00000c99ff080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc
[   31.062814]  fff00000c99ff100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   31.062862] ==================================================================

[   24.502807] ==================================================================
[   24.503235] BUG: KASAN: invalid-free in kmem_cache_invalid_free+0x1d8/0x460
[   24.503828] Free of addr ffff888106116001 by task kunit_try_catch/261
[   24.504188] 
[   24.504319] CPU: 1 UID: 0 PID: 261 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc5-next-20250711 #1 PREEMPT(voluntary) 
[   24.504375] Tainted: [B]=BAD_PAGE, [N]=TEST
[   24.504387] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   24.504411] Call Trace:
[   24.504426]  <TASK>
[   24.504446]  dump_stack_lvl+0x73/0xb0
[   24.504704]  print_report+0xd1/0x610
[   24.504747]  ? __virt_addr_valid+0x1db/0x2d0
[   24.504774]  ? kasan_complete_mode_report_info+0x2a/0x200
[   24.504800]  ? kmem_cache_invalid_free+0x1d8/0x460
[   24.504824]  kasan_report_invalid_free+0x10a/0x130
[   24.504847]  ? kmem_cache_invalid_free+0x1d8/0x460
[   24.504872]  ? kmem_cache_invalid_free+0x1d8/0x460
[   24.504896]  check_slab_allocation+0x11f/0x130
[   24.504916]  __kasan_slab_pre_free+0x28/0x40
[   24.504936]  kmem_cache_free+0xed/0x420
[   24.504960]  ? kmem_cache_alloc_noprof+0x123/0x3f0
[   24.504984]  ? kmem_cache_invalid_free+0x1d8/0x460
[   24.505010]  kmem_cache_invalid_free+0x1d8/0x460
[   24.505034]  ? __pfx_kmem_cache_invalid_free+0x10/0x10
[   24.505056]  ? finish_task_switch.isra.0+0x153/0x700
[   24.505079]  ? __switch_to+0x47/0xf80
[   24.505109]  ? __pfx_read_tsc+0x10/0x10
[   24.505131]  ? ktime_get_ts64+0x86/0x230
[   24.505157]  kunit_try_run_case+0x1a5/0x480
[   24.505180]  ? __pfx_kunit_try_run_case+0x10/0x10
[   24.505200]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   24.505225]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   24.505247]  ? __kthread_parkme+0x82/0x180
[   24.505348]  ? preempt_count_sub+0x50/0x80
[   24.505373]  ? __pfx_kunit_try_run_case+0x10/0x10
[   24.505394]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   24.505433]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   24.505457]  kthread+0x337/0x6f0
[   24.505478]  ? trace_preempt_on+0x20/0xc0
[   24.505503]  ? __pfx_kthread+0x10/0x10
[   24.505524]  ? _raw_spin_unlock_irq+0x47/0x80
[   24.505550]  ? calculate_sigpending+0x7b/0xa0
[   24.505575]  ? __pfx_kthread+0x10/0x10
[   24.505597]  ret_from_fork+0x116/0x1d0
[   24.505617]  ? __pfx_kthread+0x10/0x10
[   24.505639]  ret_from_fork_asm+0x1a/0x30
[   24.505669]  </TASK>
[   24.505681] 
[   24.517774] Allocated by task 261:
[   24.517959]  kasan_save_stack+0x45/0x70
[   24.518121]  kasan_save_track+0x18/0x40
[   24.518497]  kasan_save_alloc_info+0x3b/0x50
[   24.518719]  __kasan_slab_alloc+0x91/0xa0
[   24.518918]  kmem_cache_alloc_noprof+0x123/0x3f0
[   24.519122]  kmem_cache_invalid_free+0x157/0x460
[   24.519326]  kunit_try_run_case+0x1a5/0x480
[   24.519955]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   24.520164]  kthread+0x337/0x6f0
[   24.520467]  ret_from_fork+0x116/0x1d0
[   24.520647]  ret_from_fork_asm+0x1a/0x30
[   24.520834] 
[   24.520908] The buggy address belongs to the object at ffff888106116000
[   24.520908]  which belongs to the cache test_cache of size 200
[   24.521763] The buggy address is located 1 bytes inside of
[   24.521763]  200-byte region [ffff888106116000, ffff8881061160c8)
[   24.522286] 
[   24.522467] The buggy address belongs to the physical page:
[   24.523094] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106116
[   24.523706] flags: 0x200000000000000(node=0|zone=2)
[   24.523967] page_type: f5(slab)
[   24.524190] raw: 0200000000000000 ffff888101590500 dead000000000122 0000000000000000
[   24.524714] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000
[   24.525105] page dumped because: kasan: bad access detected
[   24.525456] 
[   24.525620] Memory state around the buggy address:
[   24.525863]  ffff888106115f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   24.526147]  ffff888106115f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   24.526799] >ffff888106116000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   24.527159]                    ^
[   24.527341]  ffff888106116080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc
[   24.527850]  ffff888106116100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   24.528159] ==================================================================