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Date
July 14, 2025, 10:38 a.m.

Environment
e850-96
qemu-arm64
qemu-x86_64 

[   38.664971] ==================================================================
[   38.674414] BUG: KASAN: invalid-free in kfree+0x270/0x3c8
[   38.679797] Free of addr ffff000804a78001 by task kunit_try_catch/234
[   38.686220] 
[   38.687704] CPU: 3 UID: 0 PID: 234 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc6-next-20250714 #1 PREEMPT 
[   38.687762] Tainted: [B]=BAD_PAGE, [N]=TEST
[   38.687780] Hardware name: WinLink E850-96 board (DT)
[   38.687801] Call trace:
[   38.687813]  show_stack+0x20/0x38 (C)
[   38.687848]  dump_stack_lvl+0x8c/0xd0
[   38.687878]  print_report+0x118/0x5d0
[   38.687907]  kasan_report_invalid_free+0xc0/0xe8
[   38.687939]  __kasan_kfree_large+0x5c/0xa8
[   38.687980]  free_large_kmalloc+0x68/0x150
[   38.688014]  kfree+0x270/0x3c8
[   38.688042]  kmalloc_large_invalid_free+0x108/0x270
[   38.688078]  kunit_try_run_case+0x170/0x3f0
[   38.688114]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   38.688148]  kthread+0x328/0x630
[   38.688179]  ret_from_fork+0x10/0x20
[   38.688211] 
[   38.759917] The buggy address belongs to the physical page:
[   38.765476] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x884a78
[   38.773457] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   38.781097] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff)
[   38.788041] page_type: f8(unknown)
[   38.791438] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   38.799157] raw: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000
[   38.806883] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   38.814695] head: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000
[   38.822508] head: 0bfffe0000000002 fffffdffe0129e01 00000000ffffffff 00000000ffffffff
[   38.830320] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004
[   38.838127] page dumped because: kasan: bad access detected
[   38.843681] 
[   38.845157] Memory state around the buggy address:
[   38.849937]  ffff000804a77f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   38.857140]  ffff000804a77f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   38.864345] >ffff000804a78000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   38.871545]                    ^
[   38.874762]  ffff000804a78080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   38.881965]  ffff000804a78100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   38.889168] ==================================================================
Metadata Full log Test run details 

[   29.370935] ==================================================================
[   29.371281] BUG: KASAN: invalid-free in kfree+0x270/0x3c8
[   29.371370] Free of addr fff00000c9b00001 by task kunit_try_catch/181
[   29.371506] 
[   29.371579] CPU: 0 UID: 0 PID: 181 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc6-next-20250714 #1 PREEMPT 
[   29.371817] Tainted: [B]=BAD_PAGE, [N]=TEST
[   29.372026] Hardware name: linux,dummy-virt (DT)
[   29.372129] Call trace:
[   29.372156]  show_stack+0x20/0x38 (C)
[   29.372329]  dump_stack_lvl+0x8c/0xd0
[   29.372528]  print_report+0x118/0x5d0
[   29.372579]  kasan_report_invalid_free+0xc0/0xe8
[   29.372649]  __kasan_kfree_large+0x5c/0xa8
[   29.372705]  free_large_kmalloc+0x68/0x150
[   29.372752]  kfree+0x270/0x3c8
[   29.372794]  kmalloc_large_invalid_free+0x108/0x270
[   29.373268]  kunit_try_run_case+0x170/0x3f0
[   29.373570]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   29.373995]  kthread+0x328/0x630
[   29.374319]  ret_from_fork+0x10/0x20
[   29.374573] 
[   29.374596] The buggy address belongs to the physical page:
[   29.375366] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x109b00
[   29.376281] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   29.376830] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff)
[   29.376905] page_type: f8(unknown)
[   29.376949] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   29.376998] raw: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000
[   29.377056] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   29.377104] head: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000
[   29.377151] head: 0bfffe0000000002 ffffc1ffc326c001 00000000ffffffff 00000000ffffffff
[   29.377198] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004
[   29.377236] page dumped because: kasan: bad access detected
[   29.377266] 
[   29.377287] Memory state around the buggy address:
[   29.377318]  fff00000c9afff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   29.377363]  fff00000c9afff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   29.377404] >fff00000c9b00000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   29.377440]                    ^
[   29.377467]  fff00000c9b00080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   29.377508]  fff00000c9b00100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   29.377560] ==================================================================
Metadata Full log Test run details 

[   23.769182] ==================================================================
[   23.770455] BUG: KASAN: invalid-free in kfree+0x274/0x3f0
[   23.771141] Free of addr ffff888105878001 by task kunit_try_catch/199
[   23.771653] 
[   23.771999] CPU: 1 UID: 0 PID: 199 Comm: kunit_try_catch Tainted: G    B   W        N  6.16.0-rc6-next-20250714 #1 PREEMPT(voluntary) 
[   23.772057] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST
[   23.772071] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   23.772117] Call Trace:
[   23.772130]  <TASK>
[   23.772151]  dump_stack_lvl+0x73/0xb0
[   23.772186]  print_report+0xd1/0x610
[   23.772209]  ? __virt_addr_valid+0x1db/0x2d0
[   23.772233]  ? kasan_addr_to_slab+0x11/0xa0
[   23.772252]  ? kfree+0x274/0x3f0
[   23.772273]  kasan_report_invalid_free+0x10a/0x130
[   23.772295]  ? kfree+0x274/0x3f0
[   23.772317]  ? kfree+0x274/0x3f0
[   23.772337]  __kasan_kfree_large+0x86/0xd0
[   23.772357]  free_large_kmalloc+0x52/0x110
[   23.772378]  kfree+0x274/0x3f0
[   23.772402]  kmalloc_large_invalid_free+0x120/0x2b0
[   23.772423]  ? __pfx_kmalloc_large_invalid_free+0x10/0x10
[   23.772446]  ? __pfx_kmalloc_large_invalid_free+0x10/0x10
[   23.772471]  kunit_try_run_case+0x1a5/0x480
[   23.772493]  ? __pfx_kunit_try_run_case+0x10/0x10
[   23.772513]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   23.772536]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   23.772558]  ? __kthread_parkme+0x82/0x180
[   23.772578]  ? preempt_count_sub+0x50/0x80
[   23.772601]  ? __pfx_kunit_try_run_case+0x10/0x10
[   23.772622]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   23.772645]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   23.772681]  kthread+0x337/0x6f0
[   23.772700]  ? trace_preempt_on+0x20/0xc0
[   23.772723]  ? __pfx_kthread+0x10/0x10
[   23.772743]  ? _raw_spin_unlock_irq+0x47/0x80
[   23.772776]  ? calculate_sigpending+0x7b/0xa0
[   23.772800]  ? __pfx_kthread+0x10/0x10
[   23.772820]  ret_from_fork+0x116/0x1d0
[   23.772839]  ? __pfx_kthread+0x10/0x10
[   23.772859]  ret_from_fork_asm+0x1a/0x30
[   23.772889]  </TASK>
[   23.772900] 
[   23.784145] The buggy address belongs to the physical page:
[   23.784626] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105878
[   23.784918] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   23.785795] flags: 0x200000000000040(head|node=0|zone=2)
[   23.786063] page_type: f8(unknown)
[   23.786262] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   23.786488] raw: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000
[   23.786739] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   23.787066] head: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000
[   23.787376] head: 0200000000000002 ffffea0004161e01 00000000ffffffff 00000000ffffffff
[   23.787730] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004
[   23.788115] page dumped because: kasan: bad access detected
[   23.788356] 
[   23.788445] Memory state around the buggy address:
[   23.788639]  ffff888105877f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   23.788903]  ffff888105877f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   23.789290] >ffff888105878000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   23.789576]                    ^
[   23.789825]  ffff888105878080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   23.790461]  ffff888105878100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   23.790796] ==================================================================
Metadata Full log Test run details