Hay
Date
June 20, 2025, 12:38 p.m.

Environment
qemu-arm64
qemu-x86_64

[   34.801902] ==================================================================
[   34.802108] BUG: KASAN: invalid-free in mempool_kmalloc_invalid_free_helper+0x118/0x2a8
[   34.802278] Free of addr fff00000c59fbb01 by task kunit_try_catch/252
[   34.802395] 
[   34.802487] CPU: 1 UID: 0 PID: 252 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc2-next-20250620 #1 PREEMPT 
[   34.802735] Tainted: [B]=BAD_PAGE, [N]=TEST
[   34.802809] Hardware name: linux,dummy-virt (DT)
[   34.802894] Call trace:
[   34.802958]  show_stack+0x20/0x38 (C)
[   34.803084]  dump_stack_lvl+0x8c/0xd0
[   34.803206]  print_report+0x118/0x608
[   34.803329]  kasan_report_invalid_free+0xc0/0xe8
[   34.803478]  check_slab_allocation+0xfc/0x108
[   34.803626]  __kasan_mempool_poison_object+0x78/0x150
[   34.803750]  mempool_free+0x28c/0x328
[   34.803900]  mempool_kmalloc_invalid_free_helper+0x118/0x2a8
[   34.804055]  mempool_kmalloc_invalid_free+0xc0/0x118
[   34.805938]  kunit_try_run_case+0x170/0x3f0
[   34.806127]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   34.806573]  kthread+0x328/0x630
[   34.806784]  ret_from_fork+0x10/0x20
[   34.806907] 
[   34.806955] Allocated by task 252:
[   34.807029]  kasan_save_stack+0x3c/0x68
[   34.807137]  kasan_save_track+0x20/0x40
[   34.807249]  kasan_save_alloc_info+0x40/0x58
[   34.807343]  __kasan_mempool_unpoison_object+0x11c/0x180
[   34.807556]  remove_element+0x130/0x1f8
[   34.807865]  mempool_alloc_preallocated+0x58/0xc0
[   34.808083]  mempool_kmalloc_invalid_free_helper+0x94/0x2a8
[   34.808192]  mempool_kmalloc_invalid_free+0xc0/0x118
[   34.808289]  kunit_try_run_case+0x170/0x3f0
[   34.808418]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   34.808532]  kthread+0x328/0x630
[   34.808808]  ret_from_fork+0x10/0x20
[   34.808926] 
[   34.809001] The buggy address belongs to the object at fff00000c59fbb00
[   34.809001]  which belongs to the cache kmalloc-128 of size 128
[   34.809206] The buggy address is located 1 bytes inside of
[   34.809206]  128-byte region [fff00000c59fbb00, fff00000c59fbb80)
[   34.809395] 
[   34.809559] The buggy address belongs to the physical page:
[   34.809668] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1059fb
[   34.809820] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   34.809943] page_type: f5(slab)
[   34.810077] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000
[   34.810187] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   34.810275] page dumped because: kasan: bad access detected
[   34.810334] 
[   34.810369] Memory state around the buggy address:
[   34.810647]  fff00000c59fba00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   34.810784]  fff00000c59fba80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   34.810920] >fff00000c59fbb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   34.811129]                    ^
[   34.811218]  fff00000c59fbb80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   34.811323]  fff00000c59fbc00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   34.811449] ==================================================================
[   34.834163] ==================================================================
[   34.834352] BUG: KASAN: invalid-free in mempool_kmalloc_invalid_free_helper+0x118/0x2a8
[   34.834516] Free of addr fff00000c5a48001 by task kunit_try_catch/254
[   34.836080] 
[   34.836196] CPU: 1 UID: 0 PID: 254 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc2-next-20250620 #1 PREEMPT 
[   34.836449] Tainted: [B]=BAD_PAGE, [N]=TEST
[   34.836514] Hardware name: linux,dummy-virt (DT)
[   34.836597] Call trace:
[   34.836666]  show_stack+0x20/0x38 (C)
[   34.836780]  dump_stack_lvl+0x8c/0xd0
[   34.836837]  print_report+0x118/0x608
[   34.836895]  kasan_report_invalid_free+0xc0/0xe8
[   34.836950]  __kasan_mempool_poison_object+0xfc/0x150
[   34.837009]  mempool_free+0x28c/0x328
[   34.837059]  mempool_kmalloc_invalid_free_helper+0x118/0x2a8
[   34.837119]  mempool_kmalloc_large_invalid_free+0xc0/0x118
[   34.837179]  kunit_try_run_case+0x170/0x3f0
[   34.837235]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   34.837294]  kthread+0x328/0x630
[   34.837341]  ret_from_fork+0x10/0x20
[   34.837399] 
[   34.837428] The buggy address belongs to the physical page:
[   34.837470] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105a48
[   34.837537] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   34.837592] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff)
[   34.838071] page_type: f8(unknown)
[   34.838369] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   34.838656] raw: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000
[   34.839067] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   34.839183] head: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000
[   34.839852] head: 0bfffe0000000002 ffffc1ffc3169201 00000000ffffffff 00000000ffffffff
[   34.840250] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004
[   34.840356] page dumped because: kasan: bad access detected
[   34.840426] 
[   34.840460] Memory state around the buggy address:
[   34.840959]  fff00000c5a47f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   34.841128]  fff00000c5a47f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   34.841246] >fff00000c5a48000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   34.841353]                    ^
[   34.841427]  fff00000c5a48080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   34.841545]  fff00000c5a48100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   34.841665] ==================================================================

[   27.569189] ==================================================================
[   27.570234] BUG: KASAN: invalid-free in mempool_kmalloc_invalid_free_helper+0x132/0x2e0
[   27.570780] Free of addr ffff88810232ae01 by task kunit_try_catch/270
[   27.571257] 
[   27.571433] CPU: 0 UID: 0 PID: 270 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc2-next-20250620 #1 PREEMPT(voluntary) 
[   27.571552] Tainted: [B]=BAD_PAGE, [N]=TEST
[   27.571583] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   27.571633] Call Trace:
[   27.571665]  <TASK>
[   27.571702]  dump_stack_lvl+0x73/0xb0
[   27.571764]  print_report+0xd1/0x650
[   27.571808]  ? __virt_addr_valid+0x1db/0x2d0
[   27.571853]  ? kasan_complete_mode_report_info+0x2a/0x200
[   27.571907]  ? mempool_kmalloc_invalid_free_helper+0x132/0x2e0
[   27.571960]  kasan_report_invalid_free+0x10a/0x130
[   27.572012]  ? mempool_kmalloc_invalid_free_helper+0x132/0x2e0
[   27.572061]  ? mempool_kmalloc_invalid_free_helper+0x132/0x2e0
[   27.572105]  ? mempool_kmalloc_invalid_free_helper+0x132/0x2e0
[   27.572150]  check_slab_allocation+0x11f/0x130
[   27.572190]  __kasan_mempool_poison_object+0x91/0x1d0
[   27.572231]  mempool_free+0x2ec/0x380
[   27.572283]  mempool_kmalloc_invalid_free_helper+0x132/0x2e0
[   27.572337]  ? __pfx_mempool_kmalloc_invalid_free_helper+0x10/0x10
[   27.572394]  ? __kasan_check_write+0x18/0x20
[   27.572614]  ? __pfx_sched_clock_cpu+0x10/0x10
[   27.572678]  ? finish_task_switch.isra.0+0x153/0x700
[   27.572736]  mempool_kmalloc_invalid_free+0xed/0x140
[   27.572778]  ? __pfx_mempool_kmalloc_invalid_free+0x10/0x10
[   27.572831]  ? __pfx_mempool_kmalloc+0x10/0x10
[   27.572859]  ? __pfx_mempool_kfree+0x10/0x10
[   27.572885]  ? __pfx_read_tsc+0x10/0x10
[   27.572910]  ? ktime_get_ts64+0x86/0x230
[   27.572939]  kunit_try_run_case+0x1a5/0x480
[   27.572967]  ? __pfx_kunit_try_run_case+0x10/0x10
[   27.572991]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   27.573016]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   27.573041]  ? __kthread_parkme+0x82/0x180
[   27.573063]  ? preempt_count_sub+0x50/0x80
[   27.573088]  ? __pfx_kunit_try_run_case+0x10/0x10
[   27.573113]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   27.573138]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   27.573173]  kthread+0x337/0x6f0
[   27.573202]  ? trace_preempt_on+0x20/0xc0
[   27.573226]  ? __pfx_kthread+0x10/0x10
[   27.573250]  ? _raw_spin_unlock_irq+0x47/0x80
[   27.573272]  ? calculate_sigpending+0x7b/0xa0
[   27.573297]  ? __pfx_kthread+0x10/0x10
[   27.573320]  ret_from_fork+0x116/0x1d0
[   27.573339]  ? __pfx_kthread+0x10/0x10
[   27.573361]  ret_from_fork_asm+0x1a/0x30
[   27.573393]  </TASK>
[   27.573406] 
[   27.590457] Allocated by task 270:
[   27.591483]  kasan_save_stack+0x45/0x70
[   27.592099]  kasan_save_track+0x18/0x40
[   27.592493]  kasan_save_alloc_info+0x3b/0x50
[   27.592934]  __kasan_mempool_unpoison_object+0x1a9/0x200
[   27.593340]  remove_element+0x11e/0x190
[   27.593786]  mempool_alloc_preallocated+0x4d/0x90
[   27.594307]  mempool_kmalloc_invalid_free_helper+0x83/0x2e0
[   27.595135]  mempool_kmalloc_invalid_free+0xed/0x140
[   27.595436]  kunit_try_run_case+0x1a5/0x480
[   27.595831]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   27.596317]  kthread+0x337/0x6f0
[   27.596586]  ret_from_fork+0x116/0x1d0
[   27.596880]  ret_from_fork_asm+0x1a/0x30
[   27.597285] 
[   27.597475] The buggy address belongs to the object at ffff88810232ae00
[   27.597475]  which belongs to the cache kmalloc-128 of size 128
[   27.598381] The buggy address is located 1 bytes inside of
[   27.598381]  128-byte region [ffff88810232ae00, ffff88810232ae80)
[   27.599524] 
[   27.599781] The buggy address belongs to the physical page:
[   27.600101] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10232a
[   27.600876] flags: 0x200000000000000(node=0|zone=2)
[   27.601334] page_type: f5(slab)
[   27.601828] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   27.602204] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   27.602916] page dumped because: kasan: bad access detected
[   27.603688] 
[   27.603846] Memory state around the buggy address:
[   27.604465]  ffff88810232ad00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   27.604888]  ffff88810232ad80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   27.605419] >ffff88810232ae00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   27.606061]                    ^
[   27.606292]  ffff88810232ae80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   27.606796]  ffff88810232af00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   27.607575] ==================================================================
[   27.614280] ==================================================================
[   27.615187] BUG: KASAN: invalid-free in mempool_kmalloc_invalid_free_helper+0x132/0x2e0
[   27.615682] Free of addr ffff888102a64001 by task kunit_try_catch/272
[   27.616255] 
[   27.616463] CPU: 1 UID: 0 PID: 272 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc2-next-20250620 #1 PREEMPT(voluntary) 
[   27.616591] Tainted: [B]=BAD_PAGE, [N]=TEST
[   27.616621] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   27.616669] Call Trace:
[   27.616700]  <TASK>
[   27.616743]  dump_stack_lvl+0x73/0xb0
[   27.616817]  print_report+0xd1/0x650
[   27.616867]  ? __virt_addr_valid+0x1db/0x2d0
[   27.617059]  ? kasan_addr_to_slab+0x11/0xa0
[   27.617112]  ? mempool_kmalloc_invalid_free_helper+0x132/0x2e0
[   27.617161]  kasan_report_invalid_free+0x10a/0x130
[   27.617207]  ? mempool_kmalloc_invalid_free_helper+0x132/0x2e0
[   27.617259]  ? mempool_kmalloc_invalid_free_helper+0x132/0x2e0
[   27.617309]  __kasan_mempool_poison_object+0x102/0x1d0
[   27.617368]  mempool_free+0x2ec/0x380
[   27.617453]  mempool_kmalloc_invalid_free_helper+0x132/0x2e0
[   27.617508]  ? __pfx_mempool_kmalloc_invalid_free_helper+0x10/0x10
[   27.617561]  ? __kasan_check_write+0x18/0x20
[   27.617727]  ? __pfx_sched_clock_cpu+0x10/0x10
[   27.617799]  ? finish_task_switch.isra.0+0x153/0x700
[   27.617854]  mempool_kmalloc_large_invalid_free+0xed/0x140
[   27.617899]  ? __pfx_mempool_kmalloc_large_invalid_free+0x10/0x10
[   27.617929]  ? __pfx_mempool_kmalloc+0x10/0x10
[   27.617953]  ? __pfx_mempool_kfree+0x10/0x10
[   27.617979]  ? __pfx_read_tsc+0x10/0x10
[   27.618003]  ? ktime_get_ts64+0x86/0x230
[   27.618045]  kunit_try_run_case+0x1a5/0x480
[   27.618077]  ? __pfx_kunit_try_run_case+0x10/0x10
[   27.618101]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   27.618127]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   27.618158]  ? __kthread_parkme+0x82/0x180
[   27.618196]  ? preempt_count_sub+0x50/0x80
[   27.618221]  ? __pfx_kunit_try_run_case+0x10/0x10
[   27.618246]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   27.618270]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   27.618294]  kthread+0x337/0x6f0
[   27.618316]  ? trace_preempt_on+0x20/0xc0
[   27.618343]  ? __pfx_kthread+0x10/0x10
[   27.618365]  ? _raw_spin_unlock_irq+0x47/0x80
[   27.618387]  ? calculate_sigpending+0x7b/0xa0
[   27.618414]  ? __pfx_kthread+0x10/0x10
[   27.618436]  ret_from_fork+0x116/0x1d0
[   27.618479]  ? __pfx_kthread+0x10/0x10
[   27.618502]  ret_from_fork_asm+0x1a/0x30
[   27.618537]  </TASK>
[   27.618557] 
[   27.633693] The buggy address belongs to the physical page:
[   27.633996] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102a64
[   27.634862] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   27.635710] flags: 0x200000000000040(head|node=0|zone=2)
[   27.637066] page_type: f8(unknown)
[   27.637301] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   27.638089] raw: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000
[   27.638356] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   27.638630] head: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000
[   27.638890] head: 0200000000000002 ffffea00040a9901 00000000ffffffff 00000000ffffffff
[   27.639143] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004
[   27.639387] page dumped because: kasan: bad access detected
[   27.640737] 
[   27.640865] Memory state around the buggy address:
[   27.641062]  ffff888102a63f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   27.641321]  ffff888102a63f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   27.643698] >ffff888102a64000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   27.644355]                    ^
[   27.644572]  ffff888102a64080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   27.644806]  ffff888102a64100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   27.645010] ==================================================================