Date
June 18, 2025, 6:43 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 22.884947] ================================================================== [ 22.885108] BUG: KASAN: double-free in mempool_double_free_helper+0x150/0x2e8 [ 22.885258] Free of addr fff00000c7791700 by task kunit_try_catch/245 [ 22.885365] [ 22.885452] CPU: 0 UID: 0 PID: 245 Comm: kunit_try_catch Tainted: G B W N 6.16.0-rc2-next-20250618 #1 PREEMPT [ 22.885665] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST [ 22.885741] Hardware name: linux,dummy-virt (DT) [ 22.885815] Call trace: [ 22.885866] show_stack+0x20/0x38 (C) [ 22.885983] dump_stack_lvl+0x8c/0xd0 [ 22.886116] print_report+0x118/0x608 [ 22.886233] kasan_report_invalid_free+0xc0/0xe8 [ 22.887185] check_slab_allocation+0xd4/0x108 [ 22.887963] __kasan_mempool_poison_object+0x78/0x150 [ 22.888283] mempool_free+0x28c/0x328 [ 22.888572] mempool_double_free_helper+0x150/0x2e8 [ 22.888991] mempool_kmalloc_double_free+0xc0/0x118 [ 22.889582] kunit_try_run_case+0x170/0x3f0 [ 22.889731] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.890156] kthread+0x328/0x630 [ 22.890396] ret_from_fork+0x10/0x20 [ 22.890625] [ 22.890767] Allocated by task 245: [ 22.890912] kasan_save_stack+0x3c/0x68 [ 22.891405] kasan_save_track+0x20/0x40 [ 22.891827] kasan_save_alloc_info+0x40/0x58 [ 22.892246] __kasan_mempool_unpoison_object+0x11c/0x180 [ 22.892425] remove_element+0x130/0x1f8 [ 22.892819] mempool_alloc_preallocated+0x58/0xc0 [ 22.893103] mempool_double_free_helper+0x94/0x2e8 [ 22.893746] mempool_kmalloc_double_free+0xc0/0x118 [ 22.893874] kunit_try_run_case+0x170/0x3f0 [ 22.893970] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.894959] kthread+0x328/0x630 [ 22.895326] ret_from_fork+0x10/0x20 [ 22.895512] [ 22.895657] Freed by task 245: [ 22.895807] kasan_save_stack+0x3c/0x68 [ 22.895905] kasan_save_track+0x20/0x40 [ 22.896321] kasan_save_free_info+0x4c/0x78 [ 22.896949] __kasan_mempool_poison_object+0xc0/0x150 [ 22.897231] mempool_free+0x28c/0x328 [ 22.897418] mempool_double_free_helper+0x100/0x2e8 [ 22.897715] mempool_kmalloc_double_free+0xc0/0x118 [ 22.898111] kunit_try_run_case+0x170/0x3f0 [ 22.898210] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.898751] kthread+0x328/0x630 [ 22.899262] ret_from_fork+0x10/0x20 [ 22.899581] [ 22.899633] The buggy address belongs to the object at fff00000c7791700 [ 22.899633] which belongs to the cache kmalloc-128 of size 128 [ 22.899783] The buggy address is located 0 bytes inside of [ 22.899783] 128-byte region [fff00000c7791700, fff00000c7791780) [ 22.899931] [ 22.899979] The buggy address belongs to the physical page: [ 22.900914] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107791 [ 22.901513] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 22.902054] page_type: f5(slab) [ 22.902568] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 22.903108] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 22.903204] page dumped because: kasan: bad access detected [ 22.903908] [ 22.904219] Memory state around the buggy address: [ 22.904314] fff00000c7791600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 22.905110] fff00000c7791680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.905235] >fff00000c7791700: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 22.905330] ^ [ 22.905399] fff00000c7791780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.906197] fff00000c7791800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 22.906866] ================================================================== [ 22.951273] ================================================================== [ 22.951454] BUG: KASAN: double-free in mempool_double_free_helper+0x150/0x2e8 [ 22.951596] Free of addr fff00000c77c4000 by task kunit_try_catch/247 [ 22.951688] [ 22.951762] CPU: 0 UID: 0 PID: 247 Comm: kunit_try_catch Tainted: G B W N 6.16.0-rc2-next-20250618 #1 PREEMPT [ 22.951939] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST [ 22.951999] Hardware name: linux,dummy-virt (DT) [ 22.952136] Call trace: [ 22.952196] show_stack+0x20/0x38 (C) [ 22.952334] dump_stack_lvl+0x8c/0xd0 [ 22.952452] print_report+0x118/0x608 [ 22.952580] kasan_report_invalid_free+0xc0/0xe8 [ 22.952828] __kasan_mempool_poison_object+0x14c/0x150 [ 22.953480] mempool_free+0x28c/0x328 [ 22.953652] mempool_double_free_helper+0x150/0x2e8 [ 22.953862] mempool_kmalloc_large_double_free+0xc0/0x118 [ 22.954083] kunit_try_run_case+0x170/0x3f0 [ 22.954243] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.954356] kthread+0x328/0x630 [ 22.954482] ret_from_fork+0x10/0x20 [ 22.954600] [ 22.954648] The buggy address belongs to the physical page: [ 22.955167] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1077c4 [ 22.955544] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 22.955678] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 22.956769] page_type: f8(unknown) [ 22.956925] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 22.957082] raw: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000 [ 22.957225] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 22.958363] head: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000 [ 22.958656] head: 0bfffe0000000002 ffffc1ffc31df101 00000000ffffffff 00000000ffffffff [ 22.959373] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 22.959492] page dumped because: kasan: bad access detected [ 22.959624] [ 22.959669] Memory state around the buggy address: [ 22.960578] fff00000c77c3f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 22.960724] fff00000c77c3f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 22.960837] >fff00000c77c4000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 22.960937] ^ [ 22.961011] fff00000c77c4080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 22.961789] fff00000c77c4100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 22.962040] ================================================================== [ 22.988250] ================================================================== [ 22.988435] BUG: KASAN: double-free in mempool_double_free_helper+0x150/0x2e8 [ 22.988603] Free of addr fff00000c77c4000 by task kunit_try_catch/249 [ 22.988717] [ 22.988814] CPU: 0 UID: 0 PID: 249 Comm: kunit_try_catch Tainted: G B W N 6.16.0-rc2-next-20250618 #1 PREEMPT [ 22.989552] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST [ 22.989884] Hardware name: linux,dummy-virt (DT) [ 22.990088] Call trace: [ 22.990181] show_stack+0x20/0x38 (C) [ 22.990531] dump_stack_lvl+0x8c/0xd0 [ 22.990905] print_report+0x118/0x608 [ 22.991285] kasan_report_invalid_free+0xc0/0xe8 [ 22.991658] __kasan_mempool_poison_pages+0xe0/0xe8 [ 22.991843] mempool_free+0x24c/0x328 [ 22.991962] mempool_double_free_helper+0x150/0x2e8 [ 22.992196] mempool_page_alloc_double_free+0xbc/0x118 [ 22.992347] kunit_try_run_case+0x170/0x3f0 [ 22.992459] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.992593] kthread+0x328/0x630 [ 22.992696] ret_from_fork+0x10/0x20 [ 22.992815] [ 22.992869] The buggy address belongs to the physical page: [ 22.992953] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1077c4 [ 22.993114] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 22.993289] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 22.994553] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 22.994820] page dumped because: kasan: bad access detected [ 22.995009] [ 22.995102] Memory state around the buggy address: [ 22.995204] fff00000c77c3f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 22.995320] fff00000c77c3f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 22.995417] >fff00000c77c4000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 22.995509] ^ [ 22.995586] fff00000c77c4080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 22.996171] fff00000c77c4100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 22.996580] ==================================================================
[ 12.822958] ================================================================== [ 12.824062] BUG: KASAN: double-free in mempool_double_free_helper+0x184/0x370 [ 12.825115] Free of addr ffff888103888000 by task kunit_try_catch/265 [ 12.826331] [ 12.826758] CPU: 1 UID: 0 PID: 265 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc2-next-20250618 #1 PREEMPT(voluntary) [ 12.826813] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.826865] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.826889] Call Trace: [ 12.826901] <TASK> [ 12.826916] dump_stack_lvl+0x73/0xb0 [ 12.826946] print_report+0xd1/0x650 [ 12.826966] ? __virt_addr_valid+0x1db/0x2d0 [ 12.826988] ? kasan_addr_to_slab+0x11/0xa0 [ 12.827007] ? mempool_double_free_helper+0x184/0x370 [ 12.827030] kasan_report_invalid_free+0x10a/0x130 [ 12.827053] ? mempool_double_free_helper+0x184/0x370 [ 12.827078] ? mempool_double_free_helper+0x184/0x370 [ 12.827100] __kasan_mempool_poison_pages+0x115/0x130 [ 12.827123] mempool_free+0x290/0x380 [ 12.827146] mempool_double_free_helper+0x184/0x370 [ 12.827187] ? __pfx_mempool_double_free_helper+0x10/0x10 [ 12.827220] ? __kasan_check_write+0x18/0x20 [ 12.827241] ? __pfx_sched_clock_cpu+0x10/0x10 [ 12.827263] ? finish_task_switch.isra.0+0x153/0x700 [ 12.827287] mempool_page_alloc_double_free+0xe8/0x140 [ 12.827311] ? __pfx_mempool_page_alloc_double_free+0x10/0x10 [ 12.827338] ? __pfx_mempool_alloc_pages+0x10/0x10 [ 12.827360] ? __pfx_mempool_free_pages+0x10/0x10 [ 12.827384] ? __pfx_read_tsc+0x10/0x10 [ 12.827405] ? ktime_get_ts64+0x86/0x230 [ 12.827445] kunit_try_run_case+0x1a5/0x480 [ 12.827468] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.827488] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.827510] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.827531] ? __kthread_parkme+0x82/0x180 [ 12.827550] ? preempt_count_sub+0x50/0x80 [ 12.827571] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.827593] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.827615] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.827636] kthread+0x337/0x6f0 [ 12.827655] ? trace_preempt_on+0x20/0xc0 [ 12.827677] ? __pfx_kthread+0x10/0x10 [ 12.827696] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.827715] ? calculate_sigpending+0x7b/0xa0 [ 12.827737] ? __pfx_kthread+0x10/0x10 [ 12.827757] ret_from_fork+0x116/0x1d0 [ 12.827776] ? __pfx_kthread+0x10/0x10 [ 12.827794] ret_from_fork_asm+0x1a/0x30 [ 12.827825] </TASK> [ 12.827835] [ 12.842951] The buggy address belongs to the physical page: [ 12.843138] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88810388e600 pfn:0x103888 [ 12.843487] flags: 0x200000000000000(node=0|zone=2) [ 12.843679] raw: 0200000000000000 0000000000000000 dead000000000122 0000000000000000 [ 12.843980] raw: ffff88810388e600 0000000000000000 00000001ffffffff 0000000000000000 [ 12.844258] page dumped because: kasan: bad access detected [ 12.844436] [ 12.844499] Memory state around the buggy address: [ 12.844716] ffff888103887f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 12.845186] ffff888103887f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 12.845464] >ffff888103888000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 12.845668] ^ [ 12.845777] ffff888103888080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 12.846338] ffff888103888100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 12.846761] ================================================================== [ 12.803024] ================================================================== [ 12.803707] BUG: KASAN: double-free in mempool_double_free_helper+0x184/0x370 [ 12.804149] Free of addr ffff888102b48000 by task kunit_try_catch/263 [ 12.804424] [ 12.804562] CPU: 0 UID: 0 PID: 263 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc2-next-20250618 #1 PREEMPT(voluntary) [ 12.804615] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.804629] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.804656] Call Trace: [ 12.804670] <TASK> [ 12.804686] dump_stack_lvl+0x73/0xb0 [ 12.804716] print_report+0xd1/0x650 [ 12.804737] ? __virt_addr_valid+0x1db/0x2d0 [ 12.804760] ? kasan_addr_to_slab+0x11/0xa0 [ 12.804780] ? mempool_double_free_helper+0x184/0x370 [ 12.804804] kasan_report_invalid_free+0x10a/0x130 [ 12.804827] ? mempool_double_free_helper+0x184/0x370 [ 12.804852] ? mempool_double_free_helper+0x184/0x370 [ 12.804874] __kasan_mempool_poison_object+0x1b3/0x1d0 [ 12.804897] mempool_free+0x2ec/0x380 [ 12.804921] mempool_double_free_helper+0x184/0x370 [ 12.804944] ? __pfx_mempool_double_free_helper+0x10/0x10 [ 12.804968] ? __pfx_sched_clock_cpu+0x10/0x10 [ 12.804992] ? finish_task_switch.isra.0+0x153/0x700 [ 12.805017] mempool_kmalloc_large_double_free+0xed/0x140 [ 12.805040] ? __pfx_mempool_kmalloc_large_double_free+0x10/0x10 [ 12.805066] ? __pfx_mempool_kmalloc+0x10/0x10 [ 12.805088] ? __pfx_mempool_kfree+0x10/0x10 [ 12.805111] ? __pfx_read_tsc+0x10/0x10 [ 12.805132] ? ktime_get_ts64+0x86/0x230 [ 12.805156] kunit_try_run_case+0x1a5/0x480 [ 12.805180] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.805201] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.805234] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.805256] ? __kthread_parkme+0x82/0x180 [ 12.805276] ? preempt_count_sub+0x50/0x80 [ 12.805297] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.805320] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.805343] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.805364] kthread+0x337/0x6f0 [ 12.805382] ? trace_preempt_on+0x20/0xc0 [ 12.805406] ? __pfx_kthread+0x10/0x10 [ 12.805425] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.805444] ? calculate_sigpending+0x7b/0xa0 [ 12.805467] ? __pfx_kthread+0x10/0x10 [ 12.805488] ret_from_fork+0x116/0x1d0 [ 12.805505] ? __pfx_kthread+0x10/0x10 [ 12.805525] ret_from_fork_asm+0x1a/0x30 [ 12.805553] </TASK> [ 12.805564] [ 12.813698] The buggy address belongs to the physical page: [ 12.813870] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102b48 [ 12.814473] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 12.814815] flags: 0x200000000000040(head|node=0|zone=2) [ 12.815082] page_type: f8(unknown) [ 12.815289] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 12.815668] raw: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000 [ 12.815885] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 12.816100] head: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000 [ 12.816432] head: 0200000000000002 ffffea00040ad201 00000000ffffffff 00000000ffffffff [ 12.816956] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 12.817181] page dumped because: kasan: bad access detected [ 12.817725] [ 12.817822] Memory state around the buggy address: [ 12.817964] ffff888102b47f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 12.818167] ffff888102b47f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 12.818542] >ffff888102b48000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 12.818854] ^ [ 12.818959] ffff888102b48080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 12.819159] ffff888102b48100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 12.819489] ================================================================== [ 12.756357] ================================================================== [ 12.757718] BUG: KASAN: double-free in mempool_double_free_helper+0x184/0x370 [ 12.758830] Free of addr ffff8881038fb600 by task kunit_try_catch/261 [ 12.759535] [ 12.759882] CPU: 1 UID: 0 PID: 261 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc2-next-20250618 #1 PREEMPT(voluntary) [ 12.759934] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.759946] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.759967] Call Trace: [ 12.759978] <TASK> [ 12.759995] dump_stack_lvl+0x73/0xb0 [ 12.760023] print_report+0xd1/0x650 [ 12.760044] ? __virt_addr_valid+0x1db/0x2d0 [ 12.760067] ? kasan_complete_mode_report_info+0x64/0x200 [ 12.760091] ? mempool_double_free_helper+0x184/0x370 [ 12.760113] kasan_report_invalid_free+0x10a/0x130 [ 12.760136] ? mempool_double_free_helper+0x184/0x370 [ 12.760160] ? mempool_double_free_helper+0x184/0x370 [ 12.760329] ? mempool_double_free_helper+0x184/0x370 [ 12.760352] check_slab_allocation+0x101/0x130 [ 12.760373] __kasan_mempool_poison_object+0x91/0x1d0 [ 12.760409] mempool_free+0x2ec/0x380 [ 12.760485] mempool_double_free_helper+0x184/0x370 [ 12.760511] ? __pfx_mempool_double_free_helper+0x10/0x10 [ 12.760536] ? __pfx_sched_clock_cpu+0x10/0x10 [ 12.760559] ? finish_task_switch.isra.0+0x153/0x700 [ 12.760583] mempool_kmalloc_double_free+0xed/0x140 [ 12.760606] ? __pfx_mempool_kmalloc_double_free+0x10/0x10 [ 12.760631] ? __pfx_mempool_kmalloc+0x10/0x10 [ 12.760655] ? __pfx_mempool_kfree+0x10/0x10 [ 12.760679] ? __pfx_read_tsc+0x10/0x10 [ 12.760700] ? ktime_get_ts64+0x86/0x230 [ 12.760725] kunit_try_run_case+0x1a5/0x480 [ 12.760747] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.760767] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.760790] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.760811] ? __kthread_parkme+0x82/0x180 [ 12.760829] ? preempt_count_sub+0x50/0x80 [ 12.760851] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.760873] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.760895] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.760917] kthread+0x337/0x6f0 [ 12.760936] ? trace_preempt_on+0x20/0xc0 [ 12.760958] ? __pfx_kthread+0x10/0x10 [ 12.760978] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.760996] ? calculate_sigpending+0x7b/0xa0 [ 12.761019] ? __pfx_kthread+0x10/0x10 [ 12.761039] ret_from_fork+0x116/0x1d0 [ 12.761057] ? __pfx_kthread+0x10/0x10 [ 12.761077] ret_from_fork_asm+0x1a/0x30 [ 12.761106] </TASK> [ 12.761116] [ 12.779070] Allocated by task 261: [ 12.779522] kasan_save_stack+0x45/0x70 [ 12.779942] kasan_save_track+0x18/0x40 [ 12.780344] kasan_save_alloc_info+0x3b/0x50 [ 12.780864] __kasan_mempool_unpoison_object+0x1a9/0x200 [ 12.781385] remove_element+0x11e/0x190 [ 12.781856] mempool_alloc_preallocated+0x4d/0x90 [ 12.782320] mempool_double_free_helper+0x8a/0x370 [ 12.782862] mempool_kmalloc_double_free+0xed/0x140 [ 12.783348] kunit_try_run_case+0x1a5/0x480 [ 12.783806] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.784318] kthread+0x337/0x6f0 [ 12.784520] ret_from_fork+0x116/0x1d0 [ 12.784972] ret_from_fork_asm+0x1a/0x30 [ 12.785370] [ 12.785495] Freed by task 261: [ 12.785828] kasan_save_stack+0x45/0x70 [ 12.786132] kasan_save_track+0x18/0x40 [ 12.786400] kasan_save_free_info+0x3f/0x60 [ 12.786834] __kasan_mempool_poison_object+0x131/0x1d0 [ 12.787266] mempool_free+0x2ec/0x380 [ 12.787391] mempool_double_free_helper+0x109/0x370 [ 12.787944] mempool_kmalloc_double_free+0xed/0x140 [ 12.788434] kunit_try_run_case+0x1a5/0x480 [ 12.788850] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.789016] kthread+0x337/0x6f0 [ 12.789125] ret_from_fork+0x116/0x1d0 [ 12.789554] ret_from_fork_asm+0x1a/0x30 [ 12.790031] [ 12.790278] The buggy address belongs to the object at ffff8881038fb600 [ 12.790278] which belongs to the cache kmalloc-128 of size 128 [ 12.791672] The buggy address is located 0 bytes inside of [ 12.791672] 128-byte region [ffff8881038fb600, ffff8881038fb680) [ 12.792627] [ 12.792730] The buggy address belongs to the physical page: [ 12.793013] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1038fb [ 12.793836] flags: 0x200000000000000(node=0|zone=2) [ 12.794194] page_type: f5(slab) [ 12.794535] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 12.794757] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 12.794967] page dumped because: kasan: bad access detected [ 12.795123] [ 12.795238] Memory state around the buggy address: [ 12.795763] ffff8881038fb500: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.796486] ffff8881038fb580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.797219] >ffff8881038fb600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.797937] ^ [ 12.798303] ffff8881038fb680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.799014] ffff8881038fb700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.799757] ==================================================================