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

Environment
e850-96
qemu-arm64
qemu-x86_64 

[   38.707386] ==================================================================
[   38.716742] BUG: KASAN: invalid-free in kfree+0x270/0x3c8
[   38.722124] Free of addr ffff000805b3c001 by task kunit_try_catch/234
[   38.728546] 
[   38.730033] CPU: 3 UID: 0 PID: 234 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc5-next-20250711 #1 PREEMPT 
[   38.730092] Tainted: [B]=BAD_PAGE, [N]=TEST
[   38.730109] Hardware name: WinLink E850-96 board (DT)
[   38.730132] Call trace:
[   38.730148]  show_stack+0x20/0x38 (C)
[   38.730184]  dump_stack_lvl+0x8c/0xd0
[   38.730216]  print_report+0x118/0x5d0
[   38.730245]  kasan_report_invalid_free+0xc0/0xe8
[   38.730276]  __kasan_kfree_large+0x5c/0xa8
[   38.730313]  free_large_kmalloc+0x68/0x150
[   38.730347]  kfree+0x270/0x3c8
[   38.730376]  kmalloc_large_invalid_free+0x108/0x270
[   38.730412]  kunit_try_run_case+0x170/0x3f0
[   38.730451]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   38.730483]  kthread+0x328/0x630
[   38.730512]  ret_from_fork+0x10/0x20
[   38.730547] 
[   38.802245] The buggy address belongs to the physical page:
[   38.807801] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x885b3c
[   38.815784] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   38.823424] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff)
[   38.830368] page_type: f8(unknown)
[   38.833766] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   38.841483] raw: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000
[   38.849212] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   38.857021] head: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000
[   38.864836] head: 0bfffe0000000002 fffffdffe016cf01 00000000ffffffff 00000000ffffffff
[   38.872646] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004
[   38.880452] page dumped because: kasan: bad access detected
[   38.886007] 
[   38.887483] Memory state around the buggy address:
[   38.892266]  ffff000805b3bf00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   38.899467]  ffff000805b3bf80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   38.906674] >ffff000805b3c000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   38.913871]                    ^
[   38.917086]  ffff000805b3c080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   38.924293]  ffff000805b3c100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   38.931493] ==================================================================
Metadata Full log Test run details 

[   30.137282] ==================================================================
[   30.137395] BUG: KASAN: invalid-free in kfree+0x270/0x3c8
[   30.137551] Free of addr fff00000c91b4001 by task kunit_try_catch/181
[   30.137650] 
[   30.137688] CPU: 1 UID: 0 PID: 181 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc5-next-20250711 #1 PREEMPT 
[   30.137772] Tainted: [B]=BAD_PAGE, [N]=TEST
[   30.137798] Hardware name: linux,dummy-virt (DT)
[   30.137829] Call trace:
[   30.137852]  show_stack+0x20/0x38 (C)
[   30.137903]  dump_stack_lvl+0x8c/0xd0
[   30.137971]  print_report+0x118/0x5d0
[   30.138016]  kasan_report_invalid_free+0xc0/0xe8
[   30.138062]  __kasan_kfree_large+0x5c/0xa8
[   30.138110]  free_large_kmalloc+0x68/0x150
[   30.138157]  kfree+0x270/0x3c8
[   30.138199]  kmalloc_large_invalid_free+0x108/0x270
[   30.138247]  kunit_try_run_case+0x170/0x3f0
[   30.138296]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   30.138370]  kthread+0x328/0x630
[   30.138447]  ret_from_fork+0x10/0x20
[   30.138575] 
[   30.138630] The buggy address belongs to the physical page:
[   30.138678] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1091b4
[   30.138779] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   30.138897] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff)
[   30.139013] page_type: f8(unknown)
[   30.139131] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   30.139183] raw: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000
[   30.139495] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   30.139610] head: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000
[   30.139739] head: 0bfffe0000000002 ffffc1ffc3246d01 00000000ffffffff 00000000ffffffff
[   30.139837] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004
[   30.139966] page dumped because: kasan: bad access detected
[   30.139997] 
[   30.140015] Memory state around the buggy address:
[   30.140046]  fff00000c91b3f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   30.140129]  fff00000c91b3f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   30.140338] >fff00000c91b4000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   30.140549]                    ^
[   30.140606]  fff00000c91b4080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   30.140646]  fff00000c91b4100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   30.140762] ==================================================================
Metadata Full log Test run details 

[   23.290477] ==================================================================
[   23.291024] BUG: KASAN: invalid-free in kfree+0x274/0x3f0
[   23.291346] Free of addr ffff888102b94001 by task kunit_try_catch/200
[   23.291659] 
[   23.292067] CPU: 1 UID: 0 PID: 200 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc5-next-20250711 #1 PREEMPT(voluntary) 
[   23.292126] Tainted: [B]=BAD_PAGE, [N]=TEST
[   23.292138] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   23.292160] Call Trace:
[   23.292173]  <TASK>
[   23.292190]  dump_stack_lvl+0x73/0xb0
[   23.292221]  print_report+0xd1/0x610
[   23.292243]  ? __virt_addr_valid+0x1db/0x2d0
[   23.292311]  ? kasan_addr_to_slab+0x11/0xa0
[   23.292337]  ? kfree+0x274/0x3f0
[   23.292358]  kasan_report_invalid_free+0x10a/0x130
[   23.292394]  ? kfree+0x274/0x3f0
[   23.292416]  ? kfree+0x274/0x3f0
[   23.292436]  __kasan_kfree_large+0x86/0xd0
[   23.292457]  free_large_kmalloc+0x52/0x110
[   23.292480]  kfree+0x274/0x3f0
[   23.292504]  kmalloc_large_invalid_free+0x120/0x2b0
[   23.292527]  ? __pfx_kmalloc_large_invalid_free+0x10/0x10
[   23.292551]  ? __pfx_kmalloc_large_invalid_free+0x10/0x10
[   23.292634]  kunit_try_run_case+0x1a5/0x480
[   23.292658]  ? __pfx_kunit_try_run_case+0x10/0x10
[   23.292678]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   23.292702]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   23.292724]  ? __kthread_parkme+0x82/0x180
[   23.292757]  ? preempt_count_sub+0x50/0x80
[   23.292781]  ? __pfx_kunit_try_run_case+0x10/0x10
[   23.292802]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   23.292826]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   23.292851]  kthread+0x337/0x6f0
[   23.292870]  ? trace_preempt_on+0x20/0xc0
[   23.292893]  ? __pfx_kthread+0x10/0x10
[   23.292913]  ? _raw_spin_unlock_irq+0x47/0x80
[   23.292934]  ? calculate_sigpending+0x7b/0xa0
[   23.292958]  ? __pfx_kthread+0x10/0x10
[   23.292979]  ret_from_fork+0x116/0x1d0
[   23.292999]  ? __pfx_kthread+0x10/0x10
[   23.293019]  ret_from_fork_asm+0x1a/0x30
[   23.293049]  </TASK>
[   23.293061] 
[   23.302013] The buggy address belongs to the physical page:
[   23.302245] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102b94
[   23.302586] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   23.303105] flags: 0x200000000000040(head|node=0|zone=2)
[   23.303296] page_type: f8(unknown)
[   23.303437] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   23.303831] raw: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000
[   23.304431] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   23.304855] head: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000
[   23.305179] head: 0200000000000002 ffffea00040ae501 00000000ffffffff 00000000ffffffff
[   23.305568] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004
[   23.305973] page dumped because: kasan: bad access detected
[   23.306226] 
[   23.306406] Memory state around the buggy address:
[   23.306652]  ffff888102b93f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   23.306891]  ffff888102b93f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   23.307225] >ffff888102b94000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   23.307545]                    ^
[   23.307800]  ffff888102b94080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   23.308057]  ffff888102b94100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   23.308587] ==================================================================
Metadata Full log Test run details