Hay
Date
July 18, 2025, 2:09 p.m.

Environment
qemu-arm64
qemu-x86_64

[   16.650182] ==================================================================
[   16.650276] BUG: KASAN: invalid-free in kfree+0x270/0x3c8
[   16.650344] Free of addr fff00000c65b0001 by task kunit_try_catch/150
[   16.650389] 
[   16.650426] CPU: 1 UID: 0 PID: 150 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc6 #1 PREEMPT 
[   16.650628] Tainted: [B]=BAD_PAGE, [N]=TEST
[   16.650665] Hardware name: linux,dummy-virt (DT)
[   16.650713] Call trace:
[   16.650737]  show_stack+0x20/0x38 (C)
[   16.650813]  dump_stack_lvl+0x8c/0xd0
[   16.650906]  print_report+0x118/0x5d0
[   16.650997]  kasan_report_invalid_free+0xc0/0xe8
[   16.651053]  __kasan_kfree_large+0x5c/0xa8
[   16.651100]  free_large_kmalloc+0x64/0x190
[   16.651167]  kfree+0x270/0x3c8
[   16.651437]  kmalloc_large_invalid_free+0x108/0x270
[   16.651548]  kunit_try_run_case+0x170/0x3f0
[   16.651697]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   16.651795]  kthread+0x328/0x630
[   16.651976]  ret_from_fork+0x10/0x20
[   16.652107] 
[   16.652222] The buggy address belongs to the physical page:
[   16.652289] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1065b0
[   16.652347] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   16.652391] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff)
[   16.652464] page_type: f8(unknown)
[   16.652506] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   16.652589] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000
[   16.652637] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   16.652684] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000
[   16.652731] head: 0bfffe0000000002 ffffc1ffc3196c01 00000000ffffffff 00000000ffffffff
[   16.652778] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004
[   16.652983] page dumped because: kasan: bad access detected
[   16.653041] 
[   16.653150] Memory state around the buggy address:
[   16.653228]  fff00000c65aff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.653313]  fff00000c65aff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.653422] >fff00000c65b0000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   16.653471]                    ^
[   16.653601]  fff00000c65b0080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   16.653709]  fff00000c65b0100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   16.653839] ==================================================================

[   16.356711] ==================================================================
[   16.357394] BUG: KASAN: invalid-free in kfree+0x270/0x3c8
[   16.357741] Free of addr fff00000c669c001 by task kunit_try_catch/150
[   16.357816] 
[   16.358359] CPU: 1 UID: 0 PID: 150 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc6 #1 PREEMPT 
[   16.359123] Tainted: [B]=BAD_PAGE, [N]=TEST
[   16.359204] Hardware name: linux,dummy-virt (DT)
[   16.359591] Call trace:
[   16.359995]  show_stack+0x20/0x38 (C)
[   16.360302]  dump_stack_lvl+0x8c/0xd0
[   16.360580]  print_report+0x118/0x5d0
[   16.360639]  kasan_report_invalid_free+0xc0/0xe8
[   16.360689]  __kasan_kfree_large+0x5c/0xa8
[   16.360736]  free_large_kmalloc+0x64/0x190
[   16.361804]  kfree+0x270/0x3c8
[   16.361861]  kmalloc_large_invalid_free+0x108/0x270
[   16.362461]  kunit_try_run_case+0x170/0x3f0
[   16.362773]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   16.362838]  kthread+0x328/0x630
[   16.363367]  ret_from_fork+0x10/0x20
[   16.364074] 
[   16.364191] The buggy address belongs to the physical page:
[   16.364508] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10669c
[   16.364865] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   16.365297] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff)
[   16.365933] page_type: f8(unknown)
[   16.366145] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   16.367034] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000
[   16.367335] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   16.367387] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000
[   16.367443] head: 0bfffe0000000002 ffffc1ffc319a701 00000000ffffffff 00000000ffffffff
[   16.367490] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004
[   16.368677] page dumped because: kasan: bad access detected
[   16.368727] 
[   16.369073] Memory state around the buggy address:
[   16.369312]  fff00000c669bf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.369764]  fff00000c669bf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.370359] >fff00000c669c000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   16.370742]                    ^
[   16.370783]  fff00000c669c080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   16.370961]  fff00000c669c100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   16.371223] ==================================================================

[   16.394515] ==================================================================
[   16.394893] BUG: KASAN: invalid-free in kfree+0x270/0x3c8
[   16.395252] Free of addr fff00000c76d8001 by task kunit_try_catch/150
[   16.395307] 
[   16.395357] CPU: 0 UID: 0 PID: 150 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc6 #1 PREEMPT 
[   16.395439] Tainted: [B]=BAD_PAGE, [N]=TEST
[   16.395752] Hardware name: linux,dummy-virt (DT)
[   16.395821] Call trace:
[   16.395890]  show_stack+0x20/0x38 (C)
[   16.396050]  dump_stack_lvl+0x8c/0xd0
[   16.396177]  print_report+0x118/0x5d0
[   16.396290]  kasan_report_invalid_free+0xc0/0xe8
[   16.396609]  __kasan_kfree_large+0x5c/0xa8
[   16.396729]  free_large_kmalloc+0x64/0x190
[   16.397025]  kfree+0x270/0x3c8
[   16.397122]  kmalloc_large_invalid_free+0x108/0x270
[   16.397553]  kunit_try_run_case+0x170/0x3f0
[   16.397638]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   16.397817]  kthread+0x328/0x630
[   16.397893]  ret_from_fork+0x10/0x20
[   16.398107] 
[   16.398158] The buggy address belongs to the physical page:
[   16.398192] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1076d8
[   16.398543] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   16.398762] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff)
[   16.398941] page_type: f8(unknown)
[   16.399001] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   16.399256] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000
[   16.399328] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   16.399544] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000
[   16.399689] head: 0bfffe0000000002 ffffc1ffc31db601 00000000ffffffff 00000000ffffffff
[   16.399924] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004
[   16.400021] page dumped because: kasan: bad access detected
[   16.400159] 
[   16.400178] Memory state around the buggy address:
[   16.400218]  fff00000c76d7f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.400452]  fff00000c76d7f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.400669] >fff00000c76d8000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   16.400721]                    ^
[   16.401619]  fff00000c76d8080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   16.401707]  fff00000c76d8100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   16.401801] ==================================================================

[   11.525982] ==================================================================
[   11.526415] BUG: KASAN: invalid-free in kfree+0x274/0x3f0
[   11.526929] Free of addr ffff888102be4001 by task kunit_try_catch/168
[   11.528015] 
[   11.528272] CPU: 1 UID: 0 PID: 168 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc6 #1 PREEMPT(voluntary) 
[   11.528336] Tainted: [B]=BAD_PAGE, [N]=TEST
[   11.528347] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   11.528367] Call Trace:
[   11.528379]  <TASK>
[   11.528393]  dump_stack_lvl+0x73/0xb0
[   11.528488]  print_report+0xd1/0x610
[   11.528524]  ? __virt_addr_valid+0x1db/0x2d0
[   11.528562]  ? kasan_addr_to_slab+0x11/0xa0
[   11.528584]  ? kfree+0x274/0x3f0
[   11.528606]  kasan_report_invalid_free+0x10a/0x130
[   11.528633]  ? kfree+0x274/0x3f0
[   11.528657]  ? kfree+0x274/0x3f0
[   11.528677]  __kasan_kfree_large+0x86/0xd0
[   11.528700]  free_large_kmalloc+0x4b/0x110
[   11.528725]  kfree+0x274/0x3f0
[   11.528751]  kmalloc_large_invalid_free+0x120/0x2b0
[   11.528775]  ? __pfx_kmalloc_large_invalid_free+0x10/0x10
[   11.528801]  ? __schedule+0x10cc/0x2b60
[   11.528824]  ? __pfx_read_tsc+0x10/0x10
[   11.528845]  ? ktime_get_ts64+0x86/0x230
[   11.528873]  kunit_try_run_case+0x1a5/0x480
[   11.528899]  ? __pfx_kunit_try_run_case+0x10/0x10
[   11.528923]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   11.528948]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   11.528973]  ? __kthread_parkme+0x82/0x180
[   11.528994]  ? preempt_count_sub+0x50/0x80
[   11.529020]  ? __pfx_kunit_try_run_case+0x10/0x10
[   11.529045]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   11.529071]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   11.529098]  kthread+0x337/0x6f0
[   11.529117]  ? trace_preempt_on+0x20/0xc0
[   11.529146]  ? __pfx_kthread+0x10/0x10
[   11.529168]  ? _raw_spin_unlock_irq+0x47/0x80
[   11.529191]  ? calculate_sigpending+0x7b/0xa0
[   11.529216]  ? __pfx_kthread+0x10/0x10
[   11.529238]  ret_from_fork+0x116/0x1d0
[   11.529258]  ? __pfx_kthread+0x10/0x10
[   11.529279]  ret_from_fork_asm+0x1a/0x30
[   11.529312]  </TASK>
[   11.529322] 
[   11.539270] The buggy address belongs to the physical page:
[   11.539818] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102be4
[   11.540315] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   11.540836] flags: 0x200000000000040(head|node=0|zone=2)
[   11.541093] page_type: f8(unknown)
[   11.541287] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   11.542026] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000
[   11.542982] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   11.543837] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000
[   11.544527] head: 0200000000000002 ffffea00040af901 00000000ffffffff 00000000ffffffff
[   11.545117] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004
[   11.545971] page dumped because: kasan: bad access detected
[   11.546223] 
[   11.546312] Memory state around the buggy address:
[   11.547045]  ffff888102be3f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   11.547403]  ffff888102be3f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   11.547652] >ffff888102be4000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   11.547874]                    ^
[   11.547995]  ffff888102be4080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   11.548215]  ffff888102be4100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   11.548467] ==================================================================

[   11.657201] ==================================================================
[   11.657700] BUG: KASAN: invalid-free in kfree+0x274/0x3f0
[   11.658378] Free of addr ffff888102850001 by task kunit_try_catch/167
[   11.658627] 
[   11.658723] CPU: 1 UID: 0 PID: 167 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc6 #1 PREEMPT(voluntary) 
[   11.658771] Tainted: [B]=BAD_PAGE, [N]=TEST
[   11.658782] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   11.658805] Call Trace:
[   11.658818]  <TASK>
[   11.658836]  dump_stack_lvl+0x73/0xb0
[   11.658869]  print_report+0xd1/0x610
[   11.658892]  ? __virt_addr_valid+0x1db/0x2d0
[   11.658916]  ? kasan_addr_to_slab+0x11/0xa0
[   11.658937]  ? kfree+0x274/0x3f0
[   11.658958]  kasan_report_invalid_free+0x10a/0x130
[   11.658982]  ? kfree+0x274/0x3f0
[   11.659004]  ? kfree+0x274/0x3f0
[   11.659055]  __kasan_kfree_large+0x86/0xd0
[   11.659076]  free_large_kmalloc+0x4b/0x110
[   11.659099]  kfree+0x274/0x3f0
[   11.659123]  kmalloc_large_invalid_free+0x120/0x2b0
[   11.659146]  ? __pfx_kmalloc_large_invalid_free+0x10/0x10
[   11.659169]  ? __schedule+0x10cc/0x2b60
[   11.659191]  ? __pfx_read_tsc+0x10/0x10
[   11.659211]  ? ktime_get_ts64+0x86/0x230
[   11.659236]  kunit_try_run_case+0x1a5/0x480
[   11.659262]  ? __pfx_kunit_try_run_case+0x10/0x10
[   11.659285]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   11.659309]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   11.659332]  ? __kthread_parkme+0x82/0x180
[   11.659353]  ? preempt_count_sub+0x50/0x80
[   11.659376]  ? __pfx_kunit_try_run_case+0x10/0x10
[   11.659400]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   11.659424]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   11.659447]  kthread+0x337/0x6f0
[   11.659465]  ? trace_preempt_on+0x20/0xc0
[   11.659487]  ? __pfx_kthread+0x10/0x10
[   11.659507]  ? _raw_spin_unlock_irq+0x47/0x80
[   11.659528]  ? calculate_sigpending+0x7b/0xa0
[   11.659551]  ? __pfx_kthread+0x10/0x10
[   11.659572]  ret_from_fork+0x116/0x1d0
[   11.659589]  ? __pfx_kthread+0x10/0x10
[   11.659609]  ret_from_fork_asm+0x1a/0x30
[   11.659639]  </TASK>
[   11.659649] 
[   11.666649] The buggy address belongs to the physical page:
[   11.666927] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102850
[   11.667260] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   11.667557] flags: 0x200000000000040(head|node=0|zone=2)
[   11.667776] page_type: f8(unknown)
[   11.667906] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   11.668452] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000
[   11.669608] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   11.669862] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000
[   11.670965] head: 0200000000000002 ffffea00040a1401 00000000ffffffff 00000000ffffffff
[   11.671443] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004
[   11.671715] page dumped because: kasan: bad access detected
[   11.671886] 
[   11.672319] Memory state around the buggy address:
[   11.672858]  ffff88810284ff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   11.673481]  ffff88810284ff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   11.673982] >ffff888102850000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   11.674422]                    ^
[   11.674586]  ffff888102850080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   11.674871]  ffff888102850100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   11.675575] ==================================================================

[   11.735572] ==================================================================
[   11.736068] BUG: KASAN: invalid-free in kfree+0x274/0x3f0
[   11.736372] Free of addr ffff8881039d8001 by task kunit_try_catch/167
[   11.736820] 
[   11.736935] CPU: 1 UID: 0 PID: 167 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc6 #1 PREEMPT(voluntary) 
[   11.736979] Tainted: [B]=BAD_PAGE, [N]=TEST
[   11.736991] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   11.737012] Call Trace:
[   11.737024]  <TASK>
[   11.737041]  dump_stack_lvl+0x73/0xb0
[   11.737071]  print_report+0xd1/0x610
[   11.737094]  ? __virt_addr_valid+0x1db/0x2d0
[   11.737129]  ? kasan_addr_to_slab+0x11/0xa0
[   11.737149]  ? kfree+0x274/0x3f0
[   11.737170]  kasan_report_invalid_free+0x10a/0x130
[   11.737194]  ? kfree+0x274/0x3f0
[   11.737217]  ? kfree+0x274/0x3f0
[   11.737237]  __kasan_kfree_large+0x86/0xd0
[   11.737257]  free_large_kmalloc+0x4b/0x110
[   11.737280]  kfree+0x274/0x3f0
[   11.737305]  kmalloc_large_invalid_free+0x120/0x2b0
[   11.737328]  ? __pfx_kmalloc_large_invalid_free+0x10/0x10
[   11.737351]  ? __schedule+0x10cc/0x2b60
[   11.737373]  ? __pfx_read_tsc+0x10/0x10
[   11.737394]  ? ktime_get_ts64+0x86/0x230
[   11.737419]  kunit_try_run_case+0x1a5/0x480
[   11.737444]  ? __pfx_kunit_try_run_case+0x10/0x10
[   11.737465]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   11.737488]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   11.737511]  ? __kthread_parkme+0x82/0x180
[   11.737532]  ? preempt_count_sub+0x50/0x80
[   11.737556]  ? __pfx_kunit_try_run_case+0x10/0x10
[   11.737579]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   11.737603]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   11.737626]  kthread+0x337/0x6f0
[   11.737645]  ? trace_preempt_on+0x20/0xc0
[   11.737730]  ? __pfx_kthread+0x10/0x10
[   11.737752]  ? _raw_spin_unlock_irq+0x47/0x80
[   11.737774]  ? calculate_sigpending+0x7b/0xa0
[   11.737798]  ? __pfx_kthread+0x10/0x10
[   11.737818]  ret_from_fork+0x116/0x1d0
[   11.737837]  ? __pfx_kthread+0x10/0x10
[   11.737856]  ret_from_fork_asm+0x1a/0x30
[   11.737889]  </TASK>
[   11.737911] 
[   11.750965] The buggy address belongs to the physical page:
[   11.751443] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1039d8
[   11.752365] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   11.752824] flags: 0x200000000000040(head|node=0|zone=2)
[   11.753351] page_type: f8(unknown)
[   11.753564] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   11.754275] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000
[   11.755030] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   11.755318] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000
[   11.755721] head: 0200000000000002 ffffea00040e7601 00000000ffffffff 00000000ffffffff
[   11.756629] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004
[   11.757434] page dumped because: kasan: bad access detected
[   11.757994] 
[   11.758154] Memory state around the buggy address:
[   11.758634]  ffff8881039d7f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   11.758953]  ffff8881039d7f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   11.759190] >ffff8881039d8000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   11.759403]                    ^
[   11.759520]  ffff8881039d8080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   11.759737]  ffff8881039d8100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   11.760091] ==================================================================