Hay
Date
June 23, 2025, 7:07 a.m.

Environment
qemu-arm64
qemu-x86_64

[   35.769187] ==================================================================
[   35.769254] BUG: KASAN: invalid-free in mempool_kmalloc_invalid_free_helper+0x118/0x2a8
[   35.769320] Free of addr fff00000c76da801 by task kunit_try_catch/253
[   35.769372] 
[   35.769407] CPU: 0 UID: 0 PID: 253 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc3-next-20250623 #1 PREEMPT 
[   35.769510] Tainted: [B]=BAD_PAGE, [N]=TEST
[   35.769545] Hardware name: linux,dummy-virt (DT)
[   35.769582] Call trace:
[   35.769608]  show_stack+0x20/0x38 (C)
[   35.769672]  dump_stack_lvl+0x8c/0xd0
[   35.769727]  print_report+0x118/0x608
[   35.769788]  kasan_report_invalid_free+0xc0/0xe8
[   35.769851]  check_slab_allocation+0xfc/0x108
[   35.769912]  __kasan_mempool_poison_object+0x78/0x150
[   35.769975]  mempool_free+0x28c/0x328
[   35.770184]  mempool_kmalloc_invalid_free_helper+0x118/0x2a8
[   35.770334]  mempool_kmalloc_invalid_free+0xc0/0x118
[   35.770961]  kunit_try_run_case+0x170/0x3f0
[   35.771372]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   35.771536]  kthread+0x328/0x630
[   35.771736]  ret_from_fork+0x10/0x20
[   35.772106] 
[   35.772248] Allocated by task 253:
[   35.772507]  kasan_save_stack+0x3c/0x68
[   35.772608]  kasan_save_track+0x20/0x40
[   35.773015]  kasan_save_alloc_info+0x40/0x58
[   35.773165]  __kasan_mempool_unpoison_object+0x11c/0x180
[   35.773307]  remove_element+0x130/0x1f8
[   35.773502]  mempool_alloc_preallocated+0x58/0xc0
[   35.773614]  mempool_kmalloc_invalid_free_helper+0x94/0x2a8
[   35.773723]  mempool_kmalloc_invalid_free+0xc0/0x118
[   35.774255]  kunit_try_run_case+0x170/0x3f0
[   35.774421]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   35.774695]  kthread+0x328/0x630
[   35.774847]  ret_from_fork+0x10/0x20
[   35.774960] 
[   35.775013] The buggy address belongs to the object at fff00000c76da800
[   35.775013]  which belongs to the cache kmalloc-128 of size 128
[   35.775170] The buggy address is located 1 bytes inside of
[   35.775170]  128-byte region [fff00000c76da800, fff00000c76da880)
[   35.775361] 
[   35.775413] The buggy address belongs to the physical page:
[   35.775576] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1076da
[   35.775720] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   35.775897] page_type: f5(slab)
[   35.776099] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000
[   35.776221] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   35.776317] page dumped because: kasan: bad access detected
[   35.776422] 
[   35.776533] Memory state around the buggy address:
[   35.776608]  fff00000c76da700: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   35.776716]  fff00000c76da780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   35.776848] >fff00000c76da800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   35.777015]                    ^
[   35.777321]  fff00000c76da880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   35.777441]  fff00000c76da900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   35.777549] ==================================================================
[   35.793674] ==================================================================
[   35.793782] BUG: KASAN: invalid-free in mempool_kmalloc_invalid_free_helper+0x118/0x2a8
[   35.793903] Free of addr fff00000c77b4001 by task kunit_try_catch/255
[   35.794010] 
[   35.794116] CPU: 0 UID: 0 PID: 255 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc3-next-20250623 #1 PREEMPT 
[   35.794375] Tainted: [B]=BAD_PAGE, [N]=TEST
[   35.794450] Hardware name: linux,dummy-virt (DT)
[   35.794540] Call trace:
[   35.794663]  show_stack+0x20/0x38 (C)
[   35.794819]  dump_stack_lvl+0x8c/0xd0
[   35.795045]  print_report+0x118/0x608
[   35.795197]  kasan_report_invalid_free+0xc0/0xe8
[   35.795361]  __kasan_mempool_poison_object+0xfc/0x150
[   35.795524]  mempool_free+0x28c/0x328
[   35.795647]  mempool_kmalloc_invalid_free_helper+0x118/0x2a8
[   35.795769]  mempool_kmalloc_large_invalid_free+0xc0/0x118
[   35.795907]  kunit_try_run_case+0x170/0x3f0
[   35.796144]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   35.796308]  kthread+0x328/0x630
[   35.796422]  ret_from_fork+0x10/0x20
[   35.796548] 
[   35.796670] The buggy address belongs to the physical page:
[   35.796975] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1077b4
[   35.797126] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   35.797239] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff)
[   35.797371] page_type: f8(unknown)
[   35.797546] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   35.797669] raw: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000
[   35.797786] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   35.797909] head: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000
[   35.798114] head: 0bfffe0000000002 ffffc1ffc31ded01 00000000ffffffff 00000000ffffffff
[   35.798334] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004
[   35.798431] page dumped because: kasan: bad access detected
[   35.798504] 
[   35.798600] Memory state around the buggy address:
[   35.798680]  fff00000c77b3f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   35.798837]  fff00000c77b3f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   35.799002] >fff00000c77b4000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   35.799149]                    ^
[   35.799234]  fff00000c77b4080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   35.799479]  fff00000c77b4100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   35.799584] ==================================================================

[   23.619565] ==================================================================
[   23.620189] BUG: KASAN: invalid-free in mempool_kmalloc_invalid_free_helper+0x132/0x2e0
[   23.620741] Free of addr ffff888102c14501 by task kunit_try_catch/270
[   23.620996] 
[   23.621467] CPU: 1 UID: 0 PID: 270 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc3-next-20250623 #1 PREEMPT(voluntary) 
[   23.621555] Tainted: [B]=BAD_PAGE, [N]=TEST
[   23.621579] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   23.621613] Call Trace:
[   23.621637]  <TASK>
[   23.621663]  dump_stack_lvl+0x73/0xb0
[   23.621715]  print_report+0xd1/0x650
[   23.621750]  ? __virt_addr_valid+0x1db/0x2d0
[   23.621786]  ? kasan_complete_mode_report_info+0x2a/0x200
[   23.621841]  ? mempool_kmalloc_invalid_free_helper+0x132/0x2e0
[   23.621889]  kasan_report_invalid_free+0x10a/0x130
[   23.621932]  ? mempool_kmalloc_invalid_free_helper+0x132/0x2e0
[   23.621980]  ? mempool_kmalloc_invalid_free_helper+0x132/0x2e0
[   23.622033]  ? mempool_kmalloc_invalid_free_helper+0x132/0x2e0
[   23.622077]  check_slab_allocation+0x11f/0x130
[   23.622114]  __kasan_mempool_poison_object+0x91/0x1d0
[   23.622150]  mempool_free+0x2ec/0x380
[   23.622195]  mempool_kmalloc_invalid_free_helper+0x132/0x2e0
[   23.622241]  ? __pfx_mempool_kmalloc_invalid_free_helper+0x10/0x10
[   23.622293]  ? __pfx_sched_clock_cpu+0x10/0x10
[   23.622334]  ? finish_task_switch.isra.0+0x153/0x700
[   23.622416]  mempool_kmalloc_invalid_free+0xed/0x140
[   23.622457]  ? __pfx_mempool_kmalloc_invalid_free+0x10/0x10
[   23.622489]  ? __pfx_mempool_kmalloc+0x10/0x10
[   23.622510]  ? __pfx_mempool_kfree+0x10/0x10
[   23.622535]  ? __pfx_read_tsc+0x10/0x10
[   23.622555]  ? ktime_get_ts64+0x86/0x230
[   23.622577]  kunit_try_run_case+0x1a5/0x480
[   23.622599]  ? __pfx_kunit_try_run_case+0x10/0x10
[   23.622619]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   23.622640]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   23.622661]  ? __kthread_parkme+0x82/0x180
[   23.622680]  ? preempt_count_sub+0x50/0x80
[   23.622701]  ? __pfx_kunit_try_run_case+0x10/0x10
[   23.622722]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   23.622743]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   23.622765]  kthread+0x337/0x6f0
[   23.622782]  ? trace_preempt_on+0x20/0xc0
[   23.622803]  ? __pfx_kthread+0x10/0x10
[   23.622822]  ? _raw_spin_unlock_irq+0x47/0x80
[   23.622870]  ? calculate_sigpending+0x7b/0xa0
[   23.622894]  ? __pfx_kthread+0x10/0x10
[   23.622914]  ret_from_fork+0x116/0x1d0
[   23.622931]  ? __pfx_kthread+0x10/0x10
[   23.622950]  ret_from_fork_asm+0x1a/0x30
[   23.622977]  </TASK>
[   23.622988] 
[   23.634834] Allocated by task 270:
[   23.635036]  kasan_save_stack+0x45/0x70
[   23.635247]  kasan_save_track+0x18/0x40
[   23.635403]  kasan_save_alloc_info+0x3b/0x50
[   23.635695]  __kasan_mempool_unpoison_object+0x1a9/0x200
[   23.636064]  remove_element+0x11e/0x190
[   23.636210]  mempool_alloc_preallocated+0x4d/0x90
[   23.636666]  mempool_kmalloc_invalid_free_helper+0x83/0x2e0
[   23.637214]  mempool_kmalloc_invalid_free+0xed/0x140
[   23.637481]  kunit_try_run_case+0x1a5/0x480
[   23.637662]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   23.637991]  kthread+0x337/0x6f0
[   23.638145]  ret_from_fork+0x116/0x1d0
[   23.638514]  ret_from_fork_asm+0x1a/0x30
[   23.638802] 
[   23.639085] The buggy address belongs to the object at ffff888102c14500
[   23.639085]  which belongs to the cache kmalloc-128 of size 128
[   23.639564] The buggy address is located 1 bytes inside of
[   23.639564]  128-byte region [ffff888102c14500, ffff888102c14580)
[   23.639951] 
[   23.640233] The buggy address belongs to the physical page:
[   23.641053] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102c14
[   23.641493] flags: 0x200000000000000(node=0|zone=2)
[   23.641681] page_type: f5(slab)
[   23.641815] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   23.642301] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   23.642734] page dumped because: kasan: bad access detected
[   23.643190] 
[   23.643343] Memory state around the buggy address:
[   23.643541]  ffff888102c14400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   23.643757]  ffff888102c14480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   23.644344] >ffff888102c14500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   23.644814]                    ^
[   23.644959]  ffff888102c14580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   23.645168]  ffff888102c14600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   23.645391] ==================================================================
[   23.650024] ==================================================================
[   23.650499] BUG: KASAN: invalid-free in mempool_kmalloc_invalid_free_helper+0x132/0x2e0
[   23.651077] Free of addr ffff888103a94001 by task kunit_try_catch/272
[   23.651314] 
[   23.651572] CPU: 0 UID: 0 PID: 272 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc3-next-20250623 #1 PREEMPT(voluntary) 
[   23.651654] Tainted: [B]=BAD_PAGE, [N]=TEST
[   23.651677] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   23.651712] Call Trace:
[   23.651735]  <TASK>
[   23.651761]  dump_stack_lvl+0x73/0xb0
[   23.651813]  print_report+0xd1/0x650
[   23.651843]  ? __virt_addr_valid+0x1db/0x2d0
[   23.651884]  ? kasan_addr_to_slab+0x11/0xa0
[   23.651917]  ? mempool_kmalloc_invalid_free_helper+0x132/0x2e0
[   23.651961]  kasan_report_invalid_free+0x10a/0x130
[   23.652011]  ? mempool_kmalloc_invalid_free_helper+0x132/0x2e0
[   23.652052]  ? mempool_kmalloc_invalid_free_helper+0x132/0x2e0
[   23.652088]  __kasan_mempool_poison_object+0x102/0x1d0
[   23.652126]  mempool_free+0x2ec/0x380
[   23.652171]  mempool_kmalloc_invalid_free_helper+0x132/0x2e0
[   23.652214]  ? __pfx_mempool_kmalloc_invalid_free_helper+0x10/0x10
[   23.652261]  ? __kasan_check_write+0x18/0x20
[   23.652302]  ? __pfx_sched_clock_cpu+0x10/0x10
[   23.652342]  ? finish_task_switch.isra.0+0x153/0x700
[   23.652412]  mempool_kmalloc_large_invalid_free+0xed/0x140
[   23.652458]  ? __pfx_mempool_kmalloc_large_invalid_free+0x10/0x10
[   23.652496]  ? __pfx_mempool_kmalloc+0x10/0x10
[   23.652525]  ? __pfx_mempool_kfree+0x10/0x10
[   23.652559]  ? __pfx_read_tsc+0x10/0x10
[   23.652589]  ? ktime_get_ts64+0x86/0x230
[   23.652623]  kunit_try_run_case+0x1a5/0x480
[   23.652663]  ? __pfx_kunit_try_run_case+0x10/0x10
[   23.652698]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   23.652730]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   23.652761]  ? __kthread_parkme+0x82/0x180
[   23.652789]  ? preempt_count_sub+0x50/0x80
[   23.652823]  ? __pfx_kunit_try_run_case+0x10/0x10
[   23.652855]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   23.652888]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   23.652926]  kthread+0x337/0x6f0
[   23.652957]  ? trace_preempt_on+0x20/0xc0
[   23.652995]  ? __pfx_kthread+0x10/0x10
[   23.653024]  ? _raw_spin_unlock_irq+0x47/0x80
[   23.653056]  ? calculate_sigpending+0x7b/0xa0
[   23.653093]  ? __pfx_kthread+0x10/0x10
[   23.653123]  ret_from_fork+0x116/0x1d0
[   23.653147]  ? __pfx_kthread+0x10/0x10
[   23.653174]  ret_from_fork_asm+0x1a/0x30
[   23.653215]  </TASK>
[   23.653231] 
[   23.663682] The buggy address belongs to the physical page:
[   23.664000] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103a94
[   23.664505] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   23.664851] flags: 0x200000000000040(head|node=0|zone=2)
[   23.665400] page_type: f8(unknown)
[   23.665605] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   23.665943] raw: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000
[   23.666191] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   23.666708] head: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000
[   23.667049] head: 0200000000000002 ffffea00040ea501 00000000ffffffff 00000000ffffffff
[   23.667283] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004
[   23.667639] page dumped because: kasan: bad access detected
[   23.667817] 
[   23.667898] Memory state around the buggy address:
[   23.668055]  ffff888103a93f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   23.668516]  ffff888103a93f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   23.669219] >ffff888103a94000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   23.669694]                    ^
[   23.669958]  ffff888103a94080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   23.670629]  ffff888103a94100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   23.671222] ==================================================================