Hay
Date
June 7, 2025, 10:40 a.m.

Environment
qemu-arm64
qemu-x86_64

[   23.684074] ==================================================================
[   23.685336] BUG: KASAN: invalid-free in mempool_kmalloc_invalid_free_helper+0x124/0x2b0
[   23.686199] Free of addr fff00000c6a28001 by task kunit_try_catch/231
[   23.686885] 
[   23.687245] CPU: 0 UID: 0 PID: 231 Comm: kunit_try_catch Tainted: G    B            N 6.12.33-rc1 #1
[   23.687480] Tainted: [B]=BAD_PAGE, [N]=TEST
[   23.687562] Hardware name: linux,dummy-virt (DT)
[   23.687652] Call trace:
[   23.687717]  dump_backtrace+0x9c/0x128
[   23.687836]  show_stack+0x20/0x38
[   23.687945]  dump_stack_lvl+0x8c/0xd0
[   23.688082]  print_report+0x118/0x5f0
[   23.688199]  kasan_report_invalid_free+0xc0/0xe8
[   23.688323]  __kasan_mempool_poison_object+0xfc/0x150
[   23.688454]  mempool_free+0x28c/0x328
[   23.688579]  mempool_kmalloc_invalid_free_helper+0x124/0x2b0
[   23.688756]  mempool_kmalloc_large_invalid_free+0xc0/0x118
[   23.688877]  kunit_try_run_case+0x170/0x3f0
[   23.688929]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   23.689012]  kthread+0x24c/0x2d0
[   23.689062]  ret_from_fork+0x10/0x20
[   23.689112] 
[   23.696296] The buggy address belongs to the physical page:
[   23.696946] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106a28
[   23.697870] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   23.698813] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff)
[   23.699955] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   23.700758] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   23.701596] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   23.702513] head: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   23.703284] head: 0bfffe0000000002 ffffc1ffc31a8a01 ffffffffffffffff 0000000000000000
[   23.704168] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
[   23.704920] page dumped because: kasan: bad access detected
[   23.705614] 
[   23.705934] Memory state around the buggy address:
[   23.707166]  fff00000c6a27f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   23.708095]  fff00000c6a27f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   23.708831] >fff00000c6a28000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   23.709478]                    ^
[   23.709954]  fff00000c6a28080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   23.710756]  fff00000c6a28100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   23.711659] ==================================================================
[   23.640137] ==================================================================
[   23.640666] BUG: KASAN: invalid-free in mempool_kmalloc_invalid_free_helper+0x124/0x2b0
[   23.641118] Free of addr fff00000c424c901 by task kunit_try_catch/229
[   23.642533] 
[   23.642940] CPU: 0 UID: 0 PID: 229 Comm: kunit_try_catch Tainted: G    B            N 6.12.33-rc1 #1
[   23.643209] Tainted: [B]=BAD_PAGE, [N]=TEST
[   23.643292] Hardware name: linux,dummy-virt (DT)
[   23.643392] Call trace:
[   23.643477]  dump_backtrace+0x9c/0x128
[   23.643587]  show_stack+0x20/0x38
[   23.643681]  dump_stack_lvl+0x8c/0xd0
[   23.643731]  print_report+0x118/0x5f0
[   23.643775]  kasan_report_invalid_free+0xc0/0xe8
[   23.643825]  check_slab_allocation+0xfc/0x108
[   23.643872]  __kasan_mempool_poison_object+0x78/0x150
[   23.643927]  mempool_free+0x28c/0x328
[   23.644008]  mempool_kmalloc_invalid_free_helper+0x124/0x2b0
[   23.644070]  mempool_kmalloc_invalid_free+0xc0/0x118
[   23.644125]  kunit_try_run_case+0x170/0x3f0
[   23.644172]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   23.644227]  kthread+0x24c/0x2d0
[   23.644275]  ret_from_fork+0x10/0x20
[   23.644322] 
[   23.653659] Allocated by task 229:
[   23.654200]  kasan_save_stack+0x3c/0x68
[   23.654740]  kasan_save_track+0x20/0x40
[   23.655365]  kasan_save_alloc_info+0x40/0x58
[   23.656093]  __kasan_mempool_unpoison_object+0x11c/0x180
[   23.656925]  remove_element+0x130/0x1f8
[   23.657527]  mempool_alloc_preallocated+0x58/0xc0
[   23.658179]  mempool_kmalloc_invalid_free_helper+0x94/0x2b0
[   23.658872]  mempool_kmalloc_invalid_free+0xc0/0x118
[   23.659687]  kunit_try_run_case+0x170/0x3f0
[   23.660197]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   23.660851]  kthread+0x24c/0x2d0
[   23.661299]  ret_from_fork+0x10/0x20
[   23.661762] 
[   23.662311] The buggy address belongs to the object at fff00000c424c900
[   23.662311]  which belongs to the cache kmalloc-128 of size 128
[   23.663614] The buggy address is located 1 bytes inside of
[   23.663614]  128-byte region [fff00000c424c900, fff00000c424c980)
[   23.664673] 
[   23.665040] The buggy address belongs to the physical page:
[   23.665618] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10424c
[   23.666406] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   23.667174] page_type: f5(slab)
[   23.667897] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000
[   23.668691] raw: 0000000000000000 0000000080100010 00000001f5000000 0000000000000000
[   23.669420] page dumped because: kasan: bad access detected
[   23.670092] 
[   23.670388] Memory state around the buggy address:
[   23.670948]  fff00000c424c800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   23.671846]  fff00000c424c880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   23.672567] >fff00000c424c900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   23.673304]                    ^
[   23.673741]  fff00000c424c980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   23.674532]  fff00000c424ca00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   23.675259] ==================================================================

[   20.328841] ==================================================================
[   20.329832] BUG: KASAN: invalid-free in mempool_kmalloc_invalid_free_helper+0x133/0x2e0
[   20.330488] Free of addr ffff888102bfc001 by task kunit_try_catch/248
[   20.330942] 
[   20.331185] CPU: 0 UID: 0 PID: 248 Comm: kunit_try_catch Tainted: G    B            N 6.12.33-rc1 #1
[   20.332109] Tainted: [B]=BAD_PAGE, [N]=TEST
[   20.332130] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   20.332164] Call Trace:
[   20.332182]  <TASK>
[   20.332204]  dump_stack_lvl+0x73/0xb0
[   20.332275]  print_report+0xd1/0x640
[   20.332311]  ? __virt_addr_valid+0x1db/0x2d0
[   20.332349]  ? kasan_addr_to_slab+0x11/0xa0
[   20.332379]  ? mempool_kmalloc_invalid_free_helper+0x133/0x2e0
[   20.332411]  kasan_report_invalid_free+0xfc/0x120
[   20.332463]  ? mempool_kmalloc_invalid_free_helper+0x133/0x2e0
[   20.332580]  ? mempool_kmalloc_invalid_free_helper+0x133/0x2e0
[   20.332614]  __kasan_mempool_poison_object+0x102/0x1d0
[   20.332653]  mempool_free+0x2ec/0x380
[   20.332686]  mempool_kmalloc_invalid_free_helper+0x133/0x2e0
[   20.332719]  ? __pfx_mempool_kmalloc_invalid_free_helper+0x10/0x10
[   20.332754]  ? irqentry_exit+0x2a/0x60
[   20.332784]  ? sysvec_apic_timer_interrupt+0x50/0x90
[   20.332832]  mempool_kmalloc_large_invalid_free+0xee/0x140
[   20.332894]  ? __pfx_mempool_kmalloc_large_invalid_free+0x10/0x10
[   20.332931]  ? __pfx_mempool_kmalloc+0x10/0x10
[   20.332957]  ? __pfx_mempool_kfree+0x10/0x10
[   20.332985]  ? __pfx_mempool_kmalloc_large_invalid_free+0x10/0x10
[   20.333020]  ? __pfx_mempool_kmalloc_large_invalid_free+0x10/0x10
[   20.333055]  kunit_try_run_case+0x1a6/0x480
[   20.333089]  ? __pfx_kunit_try_run_case+0x10/0x10
[   20.333120]  ? _raw_spin_lock_irqsave+0xa2/0x110
[   20.333149]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   20.333186]  ? __kthread_parkme+0x82/0x160
[   20.333233]  ? preempt_count_sub+0x50/0x80
[   20.333275]  ? __pfx_kunit_try_run_case+0x10/0x10
[   20.333306]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   20.333343]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   20.333383]  kthread+0x257/0x310
[   20.333409]  ? __pfx_kthread+0x10/0x10
[   20.333437]  ret_from_fork+0x41/0x80
[   20.333546]  ? __pfx_kthread+0x10/0x10
[   20.333585]  ret_from_fork_asm+0x1a/0x30
[   20.333631]  </TASK>
[   20.333645] 
[   20.355277] The buggy address belongs to the physical page:
[   20.355809] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102bfc
[   20.356465] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   20.357404] flags: 0x200000000000040(head|node=0|zone=2)
[   20.358205] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   20.358973] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   20.360025] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   20.360640] head: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   20.361956] head: 0200000000000002 ffffea00040aff01 ffffffffffffffff 0000000000000000
[   20.362484] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
[   20.363291] page dumped because: kasan: bad access detected
[   20.364285] 
[   20.364535] Memory state around the buggy address:
[   20.365369]  ffff888102bfbf00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   20.366432]  ffff888102bfbf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   20.367375] >ffff888102bfc000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   20.367967]                    ^
[   20.368393]  ffff888102bfc080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   20.369417]  ffff888102bfc100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   20.370728] ==================================================================
[   20.260028] ==================================================================
[   20.261512] BUG: KASAN: invalid-free in mempool_kmalloc_invalid_free_helper+0x133/0x2e0
[   20.261932] Free of addr ffff88810231c101 by task kunit_try_catch/246
[   20.262912] 
[   20.263333] CPU: 1 UID: 0 PID: 246 Comm: kunit_try_catch Tainted: G    B            N 6.12.33-rc1 #1
[   20.263539] Tainted: [B]=BAD_PAGE, [N]=TEST
[   20.263582] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   20.263640] Call Trace:
[   20.263675]  <TASK>
[   20.263717]  dump_stack_lvl+0x73/0xb0
[   20.263803]  print_report+0xd1/0x640
[   20.263906]  ? __virt_addr_valid+0x1db/0x2d0
[   20.263975]  ? kasan_complete_mode_report_info+0x2a/0x200
[   20.264043]  ? mempool_kmalloc_invalid_free_helper+0x133/0x2e0
[   20.264122]  kasan_report_invalid_free+0xfc/0x120
[   20.264202]  ? mempool_kmalloc_invalid_free_helper+0x133/0x2e0
[   20.264293]  ? mempool_kmalloc_invalid_free_helper+0x133/0x2e0
[   20.264375]  ? mempool_kmalloc_invalid_free_helper+0x133/0x2e0
[   20.264479]  check_slab_allocation+0x11f/0x130
[   20.264558]  __kasan_mempool_poison_object+0x91/0x1d0
[   20.264637]  mempool_free+0x2ec/0x380
[   20.264719]  mempool_kmalloc_invalid_free_helper+0x133/0x2e0
[   20.264788]  ? __pfx_mempool_kmalloc_invalid_free_helper+0x10/0x10
[   20.264848]  ? finish_task_switch.isra.0+0x153/0x700
[   20.264895]  mempool_kmalloc_invalid_free+0xee/0x140
[   20.264925]  ? __pfx_mempool_kmalloc_invalid_free+0x10/0x10
[   20.264958]  ? __pfx_mempool_kmalloc+0x10/0x10
[   20.264984]  ? __pfx_mempool_kfree+0x10/0x10
[   20.265011]  ? __pfx_read_tsc+0x10/0x10
[   20.265039]  ? ktime_get_ts64+0x84/0x230
[   20.265076]  kunit_try_run_case+0x1a6/0x480
[   20.265109]  ? __pfx_kunit_try_run_case+0x10/0x10
[   20.265138]  ? _raw_spin_lock_irqsave+0xa2/0x110
[   20.265169]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   20.265205]  ? __kthread_parkme+0x82/0x160
[   20.265264]  ? preempt_count_sub+0x50/0x80
[   20.265296]  ? __pfx_kunit_try_run_case+0x10/0x10
[   20.265325]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   20.265361]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   20.265398]  kthread+0x257/0x310
[   20.265424]  ? __pfx_kthread+0x10/0x10
[   20.265474]  ret_from_fork+0x41/0x80
[   20.265550]  ? __pfx_kthread+0x10/0x10
[   20.265591]  ret_from_fork_asm+0x1a/0x30
[   20.265635]  </TASK>
[   20.265650] 
[   20.296800] Allocated by task 246:
[   20.297155]  kasan_save_stack+0x45/0x70
[   20.297876]  kasan_save_track+0x18/0x40
[   20.298459]  kasan_save_alloc_info+0x3b/0x50
[   20.299180]  __kasan_mempool_unpoison_object+0x1a9/0x200
[   20.299779]  remove_element+0x11e/0x190
[   20.300590]  mempool_alloc_preallocated+0x4d/0x90
[   20.300784]  mempool_kmalloc_invalid_free_helper+0x84/0x2e0
[   20.302039]  mempool_kmalloc_invalid_free+0xee/0x140
[   20.302995]  kunit_try_run_case+0x1a6/0x480
[   20.303386]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   20.304124]  kthread+0x257/0x310
[   20.304408]  ret_from_fork+0x41/0x80
[   20.305388]  ret_from_fork_asm+0x1a/0x30
[   20.306388] 
[   20.306724] The buggy address belongs to the object at ffff88810231c100
[   20.306724]  which belongs to the cache kmalloc-128 of size 128
[   20.308580] The buggy address is located 1 bytes inside of
[   20.308580]  128-byte region [ffff88810231c100, ffff88810231c180)
[   20.310207] 
[   20.310401] The buggy address belongs to the physical page:
[   20.311292] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10231c
[   20.312317] flags: 0x200000000000000(node=0|zone=2)
[   20.313186] page_type: f5(slab)
[   20.313493] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   20.314449] raw: 0000000000000000 0000000080100010 00000001f5000000 0000000000000000
[   20.315388] page dumped because: kasan: bad access detected
[   20.316164] 
[   20.316690] Memory state around the buggy address:
[   20.317237]  ffff88810231c000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   20.318240]  ffff88810231c080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   20.319090] >ffff88810231c100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   20.319879]                    ^
[   20.320403]  ffff88810231c180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   20.321573]  ffff88810231c200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   20.322715] ==================================================================