Hay
Date
June 5, 2025, 7:08 a.m.

Environment
qemu-arm64
qemu-x86_64

[   28.527052] ==================================================================
[   28.527189] BUG: KASAN: invalid-free in mempool_kmalloc_invalid_free_helper+0x118/0x2a8
[   28.527322] Free of addr fff00000c7719701 by task kunit_try_catch/241
[   28.527476] 
[   28.527583] CPU: 0 UID: 0 PID: 241 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-next-20250605 #1 PREEMPT 
[   28.528165] Tainted: [B]=BAD_PAGE, [N]=TEST
[   28.528240] Hardware name: linux,dummy-virt (DT)
[   28.528323] Call trace:
[   28.529307]  show_stack+0x20/0x38 (C)
[   28.529473]  dump_stack_lvl+0x8c/0xd0
[   28.531134]  print_report+0x118/0x608
[   28.531285]  kasan_report_invalid_free+0xc0/0xe8
[   28.532593]  check_slab_allocation+0xfc/0x108
[   28.532756]  __kasan_mempool_poison_object+0x78/0x150
[   28.532889]  mempool_free+0x28c/0x328
[   28.533006]  mempool_kmalloc_invalid_free_helper+0x118/0x2a8
[   28.533138]  mempool_kmalloc_invalid_free+0xc0/0x118
[   28.533258]  kunit_try_run_case+0x170/0x3f0
[   28.533476]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   28.533616]  kthread+0x328/0x630
[   28.533712]  ret_from_fork+0x10/0x20
[   28.533823] 
[   28.533869] Allocated by task 241:
[   28.534048]  kasan_save_stack+0x3c/0x68
[   28.535889]  kasan_save_track+0x20/0x40
[   28.536210]  kasan_save_alloc_info+0x40/0x58
[   28.536409]  __kasan_mempool_unpoison_object+0x11c/0x180
[   28.536527]  remove_element+0x130/0x1f8
[   28.537464]  mempool_alloc_preallocated+0x58/0xc0
[   28.537587]  mempool_kmalloc_invalid_free_helper+0x94/0x2a8
[   28.537707]  mempool_kmalloc_invalid_free+0xc0/0x118
[   28.537914]  kunit_try_run_case+0x170/0x3f0
[   28.538476]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   28.538840]  kthread+0x328/0x630
[   28.539132]  ret_from_fork+0x10/0x20
[   28.539229] 
[   28.539663] The buggy address belongs to the object at fff00000c7719700
[   28.539663]  which belongs to the cache kmalloc-128 of size 128
[   28.540062] The buggy address is located 1 bytes inside of
[   28.540062]  128-byte region [fff00000c7719700, fff00000c7719780)
[   28.540758] 
[   28.540877] The buggy address belongs to the physical page:
[   28.540954] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107719
[   28.541569] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   28.541684] page_type: f5(slab)
[   28.541735] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000
[   28.541820] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   28.541904] page dumped because: kasan: bad access detected
[   28.541944] 
[   28.541968] Memory state around the buggy address:
[   28.542009]  fff00000c7719600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   28.542065]  fff00000c7719680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   28.542119] >fff00000c7719700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   28.542166]                    ^
[   28.542200]  fff00000c7719780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   28.542254]  fff00000c7719800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   28.542302] ==================================================================
[   28.558459] ==================================================================
[   28.558573] BUG: KASAN: invalid-free in mempool_kmalloc_invalid_free_helper+0x118/0x2a8
[   28.558689] Free of addr fff00000c78b0001 by task kunit_try_catch/243
[   28.558808] 
[   28.558892] CPU: 0 UID: 0 PID: 243 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-next-20250605 #1 PREEMPT 
[   28.560000] Tainted: [B]=BAD_PAGE, [N]=TEST
[   28.560109] Hardware name: linux,dummy-virt (DT)
[   28.560197] Call trace:
[   28.560257]  show_stack+0x20/0x38 (C)
[   28.560403]  dump_stack_lvl+0x8c/0xd0
[   28.560535]  print_report+0x118/0x608
[   28.560848]  kasan_report_invalid_free+0xc0/0xe8
[   28.561001]  __kasan_mempool_poison_object+0xfc/0x150
[   28.561194]  mempool_free+0x28c/0x328
[   28.561488]  mempool_kmalloc_invalid_free_helper+0x118/0x2a8
[   28.561683]  mempool_kmalloc_large_invalid_free+0xc0/0x118
[   28.562305]  kunit_try_run_case+0x170/0x3f0
[   28.562506]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   28.563040]  kthread+0x328/0x630
[   28.563595]  ret_from_fork+0x10/0x20
[   28.564139] 
[   28.564202] The buggy address belongs to the physical page:
[   28.564278] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1078b0
[   28.564433] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   28.564553] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff)
[   28.564731] page_type: f8(unknown)
[   28.565007] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   28.565376] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000
[   28.566159] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   28.566316] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000
[   28.566632] head: 0bfffe0000000002 ffffc1ffc31e2c01 00000000ffffffff 00000000ffffffff
[   28.566773] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004
[   28.566876] page dumped because: kasan: bad access detected
[   28.566948] 
[   28.566993] Memory state around the buggy address:
[   28.567147]  fff00000c78aff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   28.567422]  fff00000c78aff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   28.567555] >fff00000c78b0000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   28.567823]                    ^
[   28.567899]  fff00000c78b0080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   28.568034]  fff00000c78b0100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   28.568146] ==================================================================


[   13.142432] ==================================================================
[   13.142951] BUG: KASAN: invalid-free in mempool_kmalloc_invalid_free_helper+0x132/0x2e0
[   13.143408] Free of addr ffff888102793201 by task kunit_try_catch/258
[   13.143692] 
[   13.143794] CPU: 1 UID: 0 PID: 258 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-next-20250605 #1 PREEMPT(voluntary) 
[   13.143837] Tainted: [B]=BAD_PAGE, [N]=TEST
[   13.143848] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   13.143868] Call Trace:
[   13.143879]  <TASK>
[   13.143905]  dump_stack_lvl+0x73/0xb0
[   13.143930]  print_report+0xd1/0x650
[   13.143952]  ? __virt_addr_valid+0x1db/0x2d0
[   13.143977]  ? kasan_complete_mode_report_info+0x2a/0x200
[   13.143999]  ? mempool_kmalloc_invalid_free_helper+0x132/0x2e0
[   13.144024]  kasan_report_invalid_free+0x10a/0x130
[   13.144132]  ? mempool_kmalloc_invalid_free_helper+0x132/0x2e0
[   13.144160]  ? mempool_kmalloc_invalid_free_helper+0x132/0x2e0
[   13.144185]  ? mempool_kmalloc_invalid_free_helper+0x132/0x2e0
[   13.144211]  check_slab_allocation+0x11f/0x130
[   13.144233]  __kasan_mempool_poison_object+0x91/0x1d0
[   13.144257]  mempool_free+0x2ec/0x380
[   13.144278]  mempool_kmalloc_invalid_free_helper+0x132/0x2e0
[   13.144304]  ? __pfx_mempool_kmalloc_invalid_free_helper+0x10/0x10
[   13.144328]  ? update_load_avg+0x1be/0x21b0
[   13.144351]  ? dequeue_entities+0x27e/0x1740
[   13.144376]  ? finish_task_switch.isra.0+0x153/0x700
[   13.144402]  mempool_kmalloc_invalid_free+0xed/0x140
[   13.144425]  ? __pfx_mempool_kmalloc_invalid_free+0x10/0x10
[   13.144452]  ? __pfx_mempool_kmalloc+0x10/0x10
[   13.144470]  ? __pfx_mempool_kfree+0x10/0x10
[   13.144491]  ? __pfx_read_tsc+0x10/0x10
[   13.144512]  ? ktime_get_ts64+0x86/0x230
[   13.144534]  kunit_try_run_case+0x1a5/0x480
[   13.144554]  ? __pfx_kunit_try_run_case+0x10/0x10
[   13.144574]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   13.144600]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   13.144624]  ? __kthread_parkme+0x82/0x180
[   13.144644]  ? preempt_count_sub+0x50/0x80
[   13.144680]  ? __pfx_kunit_try_run_case+0x10/0x10
[   13.144700]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   13.144724]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   13.144749]  kthread+0x337/0x6f0
[   13.144768]  ? trace_preempt_on+0x20/0xc0
[   13.144791]  ? __pfx_kthread+0x10/0x10
[   13.144812]  ? _raw_spin_unlock_irq+0x47/0x80
[   13.144835]  ? calculate_sigpending+0x7b/0xa0
[   13.144858]  ? __pfx_kthread+0x10/0x10
[   13.144880]  ret_from_fork+0x116/0x1d0
[   13.144909]  ? __pfx_kthread+0x10/0x10
[   13.144930]  ret_from_fork_asm+0x1a/0x30
[   13.144975]  </TASK>
[   13.144986] 
[   13.160755] Allocated by task 258:
[   13.161048]  kasan_save_stack+0x45/0x70
[   13.161202]  kasan_save_track+0x18/0x40
[   13.161337]  kasan_save_alloc_info+0x3b/0x50
[   13.161487]  __kasan_mempool_unpoison_object+0x1a9/0x200
[   13.161674]  remove_element+0x11e/0x190
[   13.161845]  mempool_alloc_preallocated+0x4d/0x90
[   13.162272]  mempool_kmalloc_invalid_free_helper+0x83/0x2e0
[   13.162483]  mempool_kmalloc_invalid_free+0xed/0x140
[   13.162726]  kunit_try_run_case+0x1a5/0x480
[   13.162870]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   13.163373]  kthread+0x337/0x6f0
[   13.163545]  ret_from_fork+0x116/0x1d0
[   13.163759]  ret_from_fork_asm+0x1a/0x30
[   13.163925] 
[   13.164000] The buggy address belongs to the object at ffff888102793200
[   13.164000]  which belongs to the cache kmalloc-128 of size 128
[   13.164522] The buggy address is located 1 bytes inside of
[   13.164522]  128-byte region [ffff888102793200, ffff888102793280)
[   13.165230] 
[   13.165307] The buggy address belongs to the physical page:
[   13.165553] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102793
[   13.165923] flags: 0x200000000000000(node=0|zone=2)
[   13.166086] page_type: f5(slab)
[   13.166395] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   13.166746] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   13.167167] page dumped because: kasan: bad access detected
[   13.167415] 
[   13.167507] Memory state around the buggy address:
[   13.167668]  ffff888102793100: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   13.167991]  ffff888102793180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   13.168303] >ffff888102793200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   13.168522]                    ^
[   13.168746]  ffff888102793280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   13.169374]  ffff888102793300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   13.169638] ==================================================================
[   13.173582] ==================================================================
[   13.174120] BUG: KASAN: invalid-free in mempool_kmalloc_invalid_free_helper+0x132/0x2e0
[   13.174567] Free of addr ffff888102c48001 by task kunit_try_catch/260
[   13.174910] 
[   13.175012] CPU: 1 UID: 0 PID: 260 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-next-20250605 #1 PREEMPT(voluntary) 
[   13.175114] Tainted: [B]=BAD_PAGE, [N]=TEST
[   13.175128] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   13.175149] Call Trace:
[   13.175163]  <TASK>
[   13.175176]  dump_stack_lvl+0x73/0xb0
[   13.175201]  print_report+0xd1/0x650
[   13.175224]  ? __virt_addr_valid+0x1db/0x2d0
[   13.175247]  ? kasan_addr_to_slab+0x11/0xa0
[   13.175267]  ? mempool_kmalloc_invalid_free_helper+0x132/0x2e0
[   13.175293]  kasan_report_invalid_free+0x10a/0x130
[   13.175317]  ? mempool_kmalloc_invalid_free_helper+0x132/0x2e0
[   13.175346]  ? mempool_kmalloc_invalid_free_helper+0x132/0x2e0
[   13.175371]  __kasan_mempool_poison_object+0x102/0x1d0
[   13.175395]  mempool_free+0x2ec/0x380
[   13.175416]  mempool_kmalloc_invalid_free_helper+0x132/0x2e0
[   13.175442]  ? __pfx_mempool_kmalloc_invalid_free_helper+0x10/0x10
[   13.175471]  ? finish_task_switch.isra.0+0x153/0x700
[   13.175497]  mempool_kmalloc_large_invalid_free+0xed/0x140
[   13.175522]  ? __pfx_mempool_kmalloc_large_invalid_free+0x10/0x10
[   13.175550]  ? __pfx_mempool_kmalloc+0x10/0x10
[   13.175569]  ? __pfx_mempool_kfree+0x10/0x10
[   13.175591]  ? __pfx_read_tsc+0x10/0x10
[   13.175611]  ? ktime_get_ts64+0x86/0x230
[   13.175645]  kunit_try_run_case+0x1a5/0x480
[   13.175666]  ? __pfx_kunit_try_run_case+0x10/0x10
[   13.175686]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   13.175711]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   13.175735]  ? __kthread_parkme+0x82/0x180
[   13.175755]  ? preempt_count_sub+0x50/0x80
[   13.175777]  ? __pfx_kunit_try_run_case+0x10/0x10
[   13.175798]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   13.175822]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   13.175847]  kthread+0x337/0x6f0
[   13.175865]  ? trace_preempt_on+0x20/0xc0
[   13.175887]  ? __pfx_kthread+0x10/0x10
[   13.175921]  ? _raw_spin_unlock_irq+0x47/0x80
[   13.175943]  ? calculate_sigpending+0x7b/0xa0
[   13.175976]  ? __pfx_kthread+0x10/0x10
[   13.175999]  ret_from_fork+0x116/0x1d0
[   13.176016]  ? __pfx_kthread+0x10/0x10
[   13.176037]  ret_from_fork_asm+0x1a/0x30
[   13.176067]  </TASK>
[   13.176076] 
[   13.184727] The buggy address belongs to the physical page:
[   13.184975] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102c48
[   13.185240] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   13.185469] flags: 0x200000000000040(head|node=0|zone=2)
[   13.185844] page_type: f8(unknown)
[   13.186157] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   13.186475] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000
[   13.186809] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   13.187347] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000
[   13.187643] head: 0200000000000002 ffffea00040b1201 00000000ffffffff 00000000ffffffff
[   13.188060] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004
[   13.188349] page dumped because: kasan: bad access detected
[   13.188526] 
[   13.188597] Memory state around the buggy address:
[   13.188820]  ffff888102c47f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   13.189154]  ffff888102c47f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   13.189470] >ffff888102c48000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   13.189829]                    ^
[   13.190106]  ffff888102c48080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   13.190409]  ffff888102c48100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   13.190696] ==================================================================