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

Environment
qemu-arm64
qemu-x86_64

[   25.552011] ==================================================================
[   25.553269] BUG: KASAN: invalid-free in mempool_kmalloc_invalid_free_helper+0x118/0x2a0
[   25.554149] Free of addr fff00000c6610001 by task kunit_try_catch/232
[   25.554847] 
[   25.555199] CPU: 1 UID: 0 PID: 232 Comm: kunit_try_catch Tainted: G    B            N 6.14.11-rc1 #1
[   25.555330] Tainted: [B]=BAD_PAGE, [N]=TEST
[   25.555363] Hardware name: linux,dummy-virt (DT)
[   25.555434] Call trace:
[   25.555501]  show_stack+0x20/0x38 (C)
[   25.555646]  dump_stack_lvl+0x8c/0xd0
[   25.555850]  print_report+0x118/0x608
[   25.556021]  kasan_report_invalid_free+0xc0/0xe8
[   25.556160]  __kasan_mempool_poison_object+0xfc/0x150
[   25.556342]  mempool_free+0x28c/0x328
[   25.556485]  mempool_kmalloc_invalid_free_helper+0x118/0x2a0
[   25.556615]  mempool_kmalloc_large_invalid_free+0xc0/0x118
[   25.556747]  kunit_try_run_case+0x170/0x3f0
[   25.556898]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   25.557092]  kthread+0x318/0x620
[   25.557225]  ret_from_fork+0x10/0x20
[   25.557349] 
[   25.564192] The buggy address belongs to the physical page:
[   25.564765] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106610
[   25.567227] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   25.568385] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff)
[   25.571595] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   25.572269] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   25.572851] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   25.574778] head: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   25.579104] head: 0bfffe0000000002 ffffc1ffc3198401 ffffffffffffffff 0000000000000000
[   25.582343] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
[   25.585728] page dumped because: kasan: bad access detected
[   25.588147] 
[   25.588385] Memory state around the buggy address:
[   25.588785]  fff00000c660ff00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   25.591749]  fff00000c660ff80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   25.595197] >fff00000c6610000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   25.598425]                    ^
[   25.599053]  fff00000c6610080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   25.602804]  fff00000c6610100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   25.606140] ==================================================================
[   25.458980] ==================================================================
[   25.462650] BUG: KASAN: invalid-free in mempool_kmalloc_invalid_free_helper+0x118/0x2a0
[   25.464416] Free of addr fff00000c6414501 by task kunit_try_catch/230
[   25.466711] 
[   25.467470] CPU: 1 UID: 0 PID: 230 Comm: kunit_try_catch Tainted: G    B            N 6.14.11-rc1 #1
[   25.467734] Tainted: [B]=BAD_PAGE, [N]=TEST
[   25.467800] Hardware name: linux,dummy-virt (DT)
[   25.467872] Call trace:
[   25.467949]  show_stack+0x20/0x38 (C)
[   25.468072]  dump_stack_lvl+0x8c/0xd0
[   25.468185]  print_report+0x118/0x608
[   25.468296]  kasan_report_invalid_free+0xc0/0xe8
[   25.468416]  check_slab_allocation+0xfc/0x108
[   25.468535]  __kasan_mempool_poison_object+0x78/0x150
[   25.468661]  mempool_free+0x28c/0x328
[   25.468775]  mempool_kmalloc_invalid_free_helper+0x118/0x2a0
[   25.468918]  mempool_kmalloc_invalid_free+0xc0/0x118
[   25.469389]  kunit_try_run_case+0x170/0x3f0
[   25.469522]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   25.469647]  kthread+0x318/0x620
[   25.469754]  ret_from_fork+0x10/0x20
[   25.469871] 
[   25.488564] Allocated by task 230:
[   25.490708]  kasan_save_stack+0x3c/0x68
[   25.491686]  kasan_save_track+0x20/0x40
[   25.493611]  kasan_save_alloc_info+0x40/0x58
[   25.494961]  __kasan_mempool_unpoison_object+0x11c/0x180
[   25.495979]  remove_element+0x130/0x1f8
[   25.498094]  mempool_alloc_preallocated+0x58/0xc0
[   25.499409]  mempool_kmalloc_invalid_free_helper+0x94/0x2a0
[   25.500275]  mempool_kmalloc_invalid_free+0xc0/0x118
[   25.500718]  kunit_try_run_case+0x170/0x3f0
[   25.502479]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   25.504150]  kthread+0x318/0x620
[   25.506518]  ret_from_fork+0x10/0x20
[   25.507466] 
[   25.508311] The buggy address belongs to the object at fff00000c6414500
[   25.508311]  which belongs to the cache kmalloc-128 of size 128
[   25.511927] The buggy address is located 1 bytes inside of
[   25.511927]  128-byte region [fff00000c6414500, fff00000c6414580)
[   25.514640] 
[   25.514902] The buggy address belongs to the physical page:
[   25.515343] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106414
[   25.516548] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   25.518919] page_type: f5(slab)
[   25.519787] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000
[   25.522669] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   25.524493] page dumped because: kasan: bad access detected
[   25.526621] 
[   25.527231] Memory state around the buggy address:
[   25.528340]  fff00000c6414400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   25.530173]  fff00000c6414480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   25.532539] >fff00000c6414500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   25.534761]                    ^
[   25.535807]  fff00000c6414580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   25.536698]  fff00000c6414600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   25.539439] ==================================================================

[   19.949266] ==================================================================
[   19.950208] BUG: KASAN: invalid-free in mempool_kmalloc_invalid_free_helper+0x133/0x2e0
[   19.950954] Free of addr ffff888102d78001 by task kunit_try_catch/251
[   19.951817] 
[   19.952078] CPU: 1 UID: 0 PID: 251 Comm: kunit_try_catch Tainted: G    B            N 6.14.11-rc1 #1
[   19.952141] Tainted: [B]=BAD_PAGE, [N]=TEST
[   19.952158] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   19.952184] Call Trace:
[   19.952202]  <TASK>
[   19.952225]  dump_stack_lvl+0x73/0xb0
[   19.952263]  print_report+0xd1/0x650
[   19.952295]  ? __virt_addr_valid+0x1db/0x2d0
[   19.952339]  ? kasan_addr_to_slab+0x11/0xa0
[   19.952366]  ? mempool_kmalloc_invalid_free_helper+0x133/0x2e0
[   19.952398]  kasan_report_invalid_free+0xfc/0x120
[   19.952428]  ? mempool_kmalloc_invalid_free_helper+0x133/0x2e0
[   19.952462]  ? mempool_kmalloc_invalid_free_helper+0x133/0x2e0
[   19.952492]  __kasan_mempool_poison_object+0x102/0x1d0
[   19.952521]  mempool_free+0x2ec/0x380
[   19.952551]  mempool_kmalloc_invalid_free_helper+0x133/0x2e0
[   19.952582]  ? __pfx_mempool_kmalloc_invalid_free_helper+0x10/0x10
[   19.952617]  ? finish_task_switch.isra.0+0x153/0x700
[   19.952651]  mempool_kmalloc_large_invalid_free+0xee/0x140
[   19.952681]  ? __pfx_mempool_kmalloc_large_invalid_free+0x10/0x10
[   19.952714]  ? __pfx_mempool_kmalloc+0x10/0x10
[   19.952738]  ? __pfx_mempool_kfree+0x10/0x10
[   19.952764]  ? __pfx_read_tsc+0x10/0x10
[   19.952791]  ? ktime_get_ts64+0x86/0x230
[   19.952823]  kunit_try_run_case+0x1a6/0x480
[   19.952871]  ? __pfx_kunit_try_run_case+0x10/0x10
[   19.952921]  ? _raw_spin_lock_irqsave+0xa2/0x110
[   19.952983]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   19.953038]  ? __kthread_parkme+0x82/0x160
[   19.953071]  ? preempt_count_sub+0x50/0x80
[   19.953104]  ? __pfx_kunit_try_run_case+0x10/0x10
[   19.953134]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   19.953168]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   19.953225]  kthread+0x324/0x6e0
[   19.953273]  ? trace_preempt_on+0x20/0xc0
[   19.953332]  ? __pfx_kthread+0x10/0x10
[   19.953389]  ? _raw_spin_unlock_irq+0x47/0x80
[   19.953443]  ? calculate_sigpending+0x7b/0xa0
[   19.953498]  ? __pfx_kthread+0x10/0x10
[   19.953556]  ret_from_fork+0x41/0x80
[   19.953609]  ? __pfx_kthread+0x10/0x10
[   19.953643]  ret_from_fork_asm+0x1a/0x30
[   19.953687]  </TASK>
[   19.953702] 
[   19.971312] The buggy address belongs to the physical page:
[   19.971841] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102d78
[   19.972434] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   19.972839] flags: 0x200000000000040(head|node=0|zone=2)
[   19.973378] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   19.973918] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   19.974568] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   19.975045] head: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   19.975497] head: 0200000000000002 ffffea00040b5e01 ffffffffffffffff 0000000000000000
[   19.976226] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
[   19.977141] page dumped because: kasan: bad access detected
[   19.977869] 
[   19.978183] Memory state around the buggy address:
[   19.978657]  ffff888102d77f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   19.979135]  ffff888102d77f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   19.980156] >ffff888102d78000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   19.980871]                    ^
[   19.981204]  ffff888102d78080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   19.981648]  ffff888102d78100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   19.982036] ==================================================================
[   19.900472] ==================================================================
[   19.901387] BUG: KASAN: invalid-free in mempool_kmalloc_invalid_free_helper+0x133/0x2e0
[   19.901830] Free of addr ffff88810298a901 by task kunit_try_catch/249
[   19.902377] 
[   19.902561] CPU: 1 UID: 0 PID: 249 Comm: kunit_try_catch Tainted: G    B            N 6.14.11-rc1 #1
[   19.902665] Tainted: [B]=BAD_PAGE, [N]=TEST
[   19.902695] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   19.902743] Call Trace:
[   19.902775]  <TASK>
[   19.902815]  dump_stack_lvl+0x73/0xb0
[   19.903034]  print_report+0xd1/0x650
[   19.903104]  ? __virt_addr_valid+0x1db/0x2d0
[   19.903165]  ? kasan_complete_mode_report_info+0x2a/0x200
[   19.903226]  ? mempool_kmalloc_invalid_free_helper+0x133/0x2e0
[   19.903287]  kasan_report_invalid_free+0xfc/0x120
[   19.903378]  ? mempool_kmalloc_invalid_free_helper+0x133/0x2e0
[   19.903543]  ? mempool_kmalloc_invalid_free_helper+0x133/0x2e0
[   19.903622]  ? mempool_kmalloc_invalid_free_helper+0x133/0x2e0
[   19.903692]  check_slab_allocation+0x11f/0x130
[   19.903752]  __kasan_mempool_poison_object+0x91/0x1d0
[   19.903808]  mempool_free+0x2ec/0x380
[   19.903885]  mempool_kmalloc_invalid_free_helper+0x133/0x2e0
[   19.903946]  ? __pfx_mempool_kmalloc_invalid_free_helper+0x10/0x10
[   19.904010]  ? finish_task_switch.isra.0+0x153/0x700
[   19.904072]  mempool_kmalloc_invalid_free+0xee/0x140
[   19.904125]  ? __pfx_mempool_kmalloc_invalid_free+0x10/0x10
[   19.904189]  ? __pfx_mempool_kmalloc+0x10/0x10
[   19.904236]  ? __pfx_mempool_kfree+0x10/0x10
[   19.904266]  ? __pfx_read_tsc+0x10/0x10
[   19.904314]  ? ktime_get_ts64+0x86/0x230
[   19.904357]  kunit_try_run_case+0x1a6/0x480
[   19.904392]  ? __pfx_kunit_try_run_case+0x10/0x10
[   19.904422]  ? _raw_spin_lock_irqsave+0xa2/0x110
[   19.904534]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   19.904568]  ? __kthread_parkme+0x82/0x160
[   19.904599]  ? preempt_count_sub+0x50/0x80
[   19.904631]  ? __pfx_kunit_try_run_case+0x10/0x10
[   19.904661]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   19.904695]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   19.904727]  kthread+0x324/0x6e0
[   19.904755]  ? trace_preempt_on+0x20/0xc0
[   19.904785]  ? __pfx_kthread+0x10/0x10
[   19.904813]  ? _raw_spin_unlock_irq+0x47/0x80
[   19.904841]  ? calculate_sigpending+0x7b/0xa0
[   19.904889]  ? __pfx_kthread+0x10/0x10
[   19.904919]  ret_from_fork+0x41/0x80
[   19.904944]  ? __pfx_kthread+0x10/0x10
[   19.904972]  ret_from_fork_asm+0x1a/0x30
[   19.905014]  </TASK>
[   19.905029] 
[   19.923174] Allocated by task 249:
[   19.923457]  kasan_save_stack+0x45/0x70
[   19.923897]  kasan_save_track+0x18/0x40
[   19.924550]  kasan_save_alloc_info+0x3b/0x50
[   19.924833]  __kasan_mempool_unpoison_object+0x1a9/0x200
[   19.925119]  remove_element+0x11e/0x190
[   19.925446]  mempool_alloc_preallocated+0x4d/0x90
[   19.926053]  mempool_kmalloc_invalid_free_helper+0x84/0x2e0
[   19.926593]  mempool_kmalloc_invalid_free+0xee/0x140
[   19.927261]  kunit_try_run_case+0x1a6/0x480
[   19.927907]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   19.928233]  kthread+0x324/0x6e0
[   19.928695]  ret_from_fork+0x41/0x80
[   19.929101]  ret_from_fork_asm+0x1a/0x30
[   19.929886] 
[   19.930031] The buggy address belongs to the object at ffff88810298a900
[   19.930031]  which belongs to the cache kmalloc-128 of size 128
[   19.931505] The buggy address is located 1 bytes inside of
[   19.931505]  128-byte region [ffff88810298a900, ffff88810298a980)
[   19.932376] 
[   19.933097] The buggy address belongs to the physical page:
[   19.933514] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10298a
[   19.934036] flags: 0x200000000000000(node=0|zone=2)
[   19.934426] page_type: f5(slab)
[   19.934650] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   19.935908] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   19.936633] page dumped because: kasan: bad access detected
[   19.937248] 
[   19.937688] Memory state around the buggy address:
[   19.938003]  ffff88810298a800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   19.939371]  ffff88810298a880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   19.939915] >ffff88810298a900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   19.940565]                    ^
[   19.940924]  ffff88810298a980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   19.941876]  ffff88810298aa00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   19.942430] ==================================================================