Hay
Date
July 4, 2025, 3:11 p.m.

Environment
e850-96
qemu-arm64
qemu-x86_64
x86

[   19.544345] ==================================================================
[   19.553761] BUG: KASAN: invalid-free in kfree+0x270/0x3c8
[   19.559143] Free of addr ffff000806088001 by task kunit_try_catch/199
[   19.565564] 
[   19.567050] CPU: 2 UID: 0 PID: 199 Comm: kunit_try_catch Tainted: G    B            N  6.15.5-rc2 #1 PREEMPT 
[   19.567102] Tainted: [B]=BAD_PAGE, [N]=TEST
[   19.567120] Hardware name: WinLink E850-96 board (DT)
[   19.567142] Call trace:
[   19.567155]  show_stack+0x20/0x38 (C)
[   19.567189]  dump_stack_lvl+0x8c/0xd0
[   19.567225]  print_report+0x118/0x608
[   19.567255]  kasan_report_invalid_free+0xc0/0xe8
[   19.567286]  __kasan_kfree_large+0x5c/0xa8
[   19.567316]  free_large_kmalloc+0x64/0x190
[   19.567354]  kfree+0x270/0x3c8
[   19.567376]  kmalloc_large_invalid_free+0x108/0x270
[   19.567413]  kunit_try_run_case+0x170/0x3f0
[   19.567449]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   19.567486]  kthread+0x328/0x630
[   19.567519]  ret_from_fork+0x10/0x20
[   19.567553] 
[   19.638047] The buggy address belongs to the physical page:
[   19.643605] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x886088
[   19.651589] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   19.659227] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff)
[   19.666170] page_type: f8(unknown)
[   19.669571] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   19.677288] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000
[   19.685015] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   19.692825] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000
[   19.700638] head: 0bfffe0000000002 fffffdffe0182201 00000000ffffffff 00000000ffffffff
[   19.708450] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004
[   19.716259] page dumped because: kasan: bad access detected
[   19.721811] 
[   19.723287] Memory state around the buggy address:
[   19.728068]  ffff000806087f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   19.735272]  ffff000806087f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   19.742479] >ffff000806088000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   19.749676]                    ^
[   19.752891]  ffff000806088080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   19.760096]  ffff000806088100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   19.767298] ==================================================================

[   15.363542] ==================================================================
[   15.363914] BUG: KASAN: invalid-free in kfree+0x270/0x3c8
[   15.364059] Free of addr fff00000c6560001 by task kunit_try_catch/155
[   15.364104] 
[   15.364136] CPU: 0 UID: 0 PID: 155 Comm: kunit_try_catch Tainted: G    B            N  6.15.5-rc2 #1 PREEMPT 
[   15.364768] Tainted: [B]=BAD_PAGE, [N]=TEST
[   15.364811] Hardware name: linux,dummy-virt (DT)
[   15.364843] Call trace:
[   15.364865]  show_stack+0x20/0x38 (C)
[   15.365018]  dump_stack_lvl+0x8c/0xd0
[   15.365087]  print_report+0x118/0x608
[   15.365129]  kasan_report_invalid_free+0xc0/0xe8
[   15.365524]  __kasan_kfree_large+0x5c/0xa8
[   15.365591]  free_large_kmalloc+0x64/0x190
[   15.365972]  kfree+0x270/0x3c8
[   15.366042]  kmalloc_large_invalid_free+0x108/0x270
[   15.366091]  kunit_try_run_case+0x170/0x3f0
[   15.366139]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   15.366190]  kthread+0x328/0x630
[   15.366244]  ret_from_fork+0x10/0x20
[   15.366290] 
[   15.366310] The buggy address belongs to the physical page:
[   15.366615] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106560
[   15.367034] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   15.367163] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff)
[   15.367247] page_type: f8(unknown)
[   15.367284] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   15.367566] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000
[   15.367615] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   15.367671] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000
[   15.367717] head: 0bfffe0000000002 ffffc1ffc3195801 00000000ffffffff 00000000ffffffff
[   15.367764] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004
[   15.367802] page dumped because: kasan: bad access detected
[   15.368041] 
[   15.368061] Memory state around the buggy address:
[   15.368093]  fff00000c655ff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   15.368134]  fff00000c655ff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   15.368177] >fff00000c6560000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   15.368689]                    ^
[   15.368861]  fff00000c6560080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   15.368907]  fff00000c6560100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   15.368956] ==================================================================

[   13.523754] ==================================================================
[   13.524354] BUG: KASAN: invalid-free in kfree+0x274/0x3f0
[   13.525099] Free of addr ffff888102b44001 by task kunit_try_catch/171
[   13.525561] 
[   13.525739] CPU: 1 UID: 0 PID: 171 Comm: kunit_try_catch Tainted: G    B            N  6.15.5-rc2 #1 PREEMPT(voluntary) 
[   13.525980] Tainted: [B]=BAD_PAGE, [N]=TEST
[   13.526010] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   13.526056] Call Trace:
[   13.526086]  <TASK>
[   13.526325]  dump_stack_lvl+0x73/0xb0
[   13.526430]  print_report+0xd1/0x650
[   13.526476]  ? __virt_addr_valid+0x1db/0x2d0
[   13.526505]  ? kasan_addr_to_slab+0x11/0xa0
[   13.526527]  ? kfree+0x274/0x3f0
[   13.526548]  kasan_report_invalid_free+0x10a/0x130
[   13.526573]  ? kfree+0x274/0x3f0
[   13.526595]  ? kfree+0x274/0x3f0
[   13.526613]  __kasan_kfree_large+0x86/0xd0
[   13.526636]  free_large_kmalloc+0x4b/0x110
[   13.526657]  kfree+0x274/0x3f0
[   13.526680]  kmalloc_large_invalid_free+0x120/0x2b0
[   13.526704]  ? __pfx_kmalloc_large_invalid_free+0x10/0x10
[   13.526727]  ? sysvec_apic_timer_interrupt+0x50/0x90
[   13.526753]  ? trace_hardirqs_on+0x37/0xe0
[   13.526778]  ? __pfx_read_tsc+0x10/0x10
[   13.526799]  ? ktime_get_ts64+0x86/0x230
[   13.526826]  kunit_try_run_case+0x1a5/0x480
[   13.526852]  ? __pfx_kunit_try_run_case+0x10/0x10
[   13.526876]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   13.526902]  ? __kthread_parkme+0x82/0x180
[   13.526926]  ? preempt_count_sub+0x50/0x80
[   13.526952]  ? __pfx_kunit_try_run_case+0x10/0x10
[   13.526975]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   13.526999]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   13.527022]  kthread+0x337/0x6f0
[   13.527039]  ? trace_preempt_on+0x20/0xc0
[   13.527062]  ? __pfx_kthread+0x10/0x10
[   13.527208]  ? _raw_spin_unlock_irq+0x47/0x80
[   13.527305]  ? calculate_sigpending+0x7b/0xa0
[   13.527369]  ? __pfx_kthread+0x10/0x10
[   13.527410]  ret_from_fork+0x41/0x80
[   13.527452]  ? __pfx_kthread+0x10/0x10
[   13.527491]  ret_from_fork_asm+0x1a/0x30
[   13.527546]  </TASK>
[   13.527560] 
[   13.539640] The buggy address belongs to the physical page:
[   13.540155] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102b44
[   13.541135] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   13.541723] flags: 0x200000000000040(head|node=0|zone=2)
[   13.542368] page_type: f8(unknown)
[   13.542645] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   13.543371] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000
[   13.543786] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   13.544105] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000
[   13.544828] head: 0200000000000002 ffffea00040ad101 00000000ffffffff 00000000ffffffff
[   13.545919] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004
[   13.546381] page dumped because: kasan: bad access detected
[   13.546858] 
[   13.547039] Memory state around the buggy address:
[   13.548124]  ffff888102b43f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   13.548791]  ffff888102b43f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   13.549064] >ffff888102b44000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   13.549395]                    ^
[   13.549590]  ffff888102b44080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   13.549832]  ffff888102b44100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   13.550156] ==================================================================

[   21.242637] ==================================================================
[   21.253618] BUG: KASAN: invalid-free in kfree+0x274/0x3f0
[   21.259019] Free of addr ffff888102a1c001 by task kunit_try_catch/193
[   21.265466] 
[   21.266995] CPU: 3 UID: 0 PID: 193 Comm: kunit_try_catch Tainted: G    B            N  6.15.5-rc2 #1 PREEMPT(voluntary) 
[   21.267003] Tainted: [B]=BAD_PAGE, [N]=TEST
[   21.267006] Hardware name: Supermicro SYS-5019S-ML/X11SSH-F, BIOS 2.7 12/07/2021
[   21.267009] Call Trace:
[   21.267011]  <TASK>
[   21.267013]  dump_stack_lvl+0x73/0xb0
[   21.267017]  print_report+0xd1/0x650
[   21.267021]  ? __virt_addr_valid+0x1db/0x2d0
[   21.267025]  ? kasan_addr_to_slab+0x11/0xa0
[   21.267029]  ? kfree+0x274/0x3f0
[   21.267033]  kasan_report_invalid_free+0x10a/0x130
[   21.267038]  ? kfree+0x274/0x3f0
[   21.267041]  ? kfree+0x274/0x3f0
[   21.267044]  __kasan_kfree_large+0x86/0xd0
[   21.267048]  free_large_kmalloc+0x4b/0x110
[   21.267052]  kfree+0x274/0x3f0
[   21.267056]  kmalloc_large_invalid_free+0x120/0x2b0
[   21.267060]  ? __pfx_kmalloc_large_invalid_free+0x10/0x10
[   21.267065]  ? __schedule+0x10cc/0x2b60
[   21.267070]  ? ktime_get_ts64+0x83/0x230
[   21.267074]  kunit_try_run_case+0x1a2/0x480
[   21.267079]  ? __pfx_kunit_try_run_case+0x10/0x10
[   21.267084]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   21.267088]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   21.267093]  ? __kthread_parkme+0x82/0x180
[   21.267097]  ? preempt_count_sub+0x50/0x80
[   21.267102]  ? __pfx_kunit_try_run_case+0x10/0x10
[   21.267106]  kunit_generic_run_threadfn_adapter+0x82/0xf0
[   21.267111]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   21.267115]  kthread+0x334/0x6f0
[   21.267118]  ? trace_preempt_on+0x20/0xc0
[   21.267122]  ? __pfx_kthread+0x10/0x10
[   21.267125]  ? _raw_spin_unlock_irq+0x47/0x80
[   21.267129]  ? calculate_sigpending+0x7b/0xa0
[   21.267133]  ? __pfx_kthread+0x10/0x10
[   21.267136]  ret_from_fork+0x3e/0x80
[   21.267140]  ? __pfx_kthread+0x10/0x10
[   21.267143]  ret_from_fork_asm+0x1a/0x30
[   21.267149]  </TASK>
[   21.267151] 
[   21.434779] The buggy address belongs to the physical page:
[   21.440352] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102a1c
[   21.448358] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   21.456011] flags: 0x200000000000040(head|node=0|zone=2)
[   21.461323] page_type: f8(unknown)
[   21.464730] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   21.472471] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000
[   21.480218] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   21.488051] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000
[   21.495877] head: 0200000000000002 ffffea00040a8701 00000000ffffffff 00000000ffffffff
[   21.503737] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004
[   21.511563] page dumped because: kasan: bad access detected
[   21.517137] 
[   21.518635] Memory state around the buggy address:
[   21.523429]  ffff888102a1bf00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   21.530649]  ffff888102a1bf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   21.537877] >ffff888102a1c000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   21.545128]                    ^
[   21.548362]  ffff888102a1c080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   21.555582]  ffff888102a1c100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   21.562801] ==================================================================