Date
May 29, 2025, 7:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 24.311566] ================================================================== [ 24.311755] BUG: KASAN: double-free in mempool_double_free_helper+0x150/0x2e8 [ 24.312385] Free of addr fff00000c66ad700 by task kunit_try_catch/235 [ 24.312695] [ 24.312802] CPU: 0 UID: 0 PID: 235 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250529 #1 PREEMPT [ 24.313055] Tainted: [B]=BAD_PAGE, [N]=TEST [ 24.313134] Hardware name: linux,dummy-virt (DT) [ 24.313230] Call trace: [ 24.313286] show_stack+0x20/0x38 (C) [ 24.313431] dump_stack_lvl+0x8c/0xd0 [ 24.313541] print_report+0x118/0x608 [ 24.313663] kasan_report_invalid_free+0xc0/0xe8 [ 24.313788] check_slab_allocation+0xd4/0x108 [ 24.313908] __kasan_mempool_poison_object+0x78/0x150 [ 24.314376] mempool_free+0x28c/0x328 [ 24.315063] mempool_double_free_helper+0x150/0x2e8 [ 24.315293] mempool_kmalloc_double_free+0xc0/0x118 [ 24.315735] kunit_try_run_case+0x170/0x3f0 [ 24.315918] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 24.316318] kthread+0x328/0x630 [ 24.316442] ret_from_fork+0x10/0x20 [ 24.316557] [ 24.317091] Allocated by task 235: [ 24.317206] kasan_save_stack+0x3c/0x68 [ 24.317548] kasan_save_track+0x20/0x40 [ 24.317818] kasan_save_alloc_info+0x40/0x58 [ 24.317922] __kasan_mempool_unpoison_object+0x11c/0x180 [ 24.318025] remove_element+0x130/0x1f8 [ 24.318116] mempool_alloc_preallocated+0x58/0xc0 [ 24.318217] mempool_double_free_helper+0x94/0x2e8 [ 24.318313] mempool_kmalloc_double_free+0xc0/0x118 [ 24.318443] kunit_try_run_case+0x170/0x3f0 [ 24.318542] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 24.318648] kthread+0x328/0x630 [ 24.318730] ret_from_fork+0x10/0x20 [ 24.318822] [ 24.318868] Freed by task 235: [ 24.318934] kasan_save_stack+0x3c/0x68 [ 24.319072] kasan_save_track+0x20/0x40 [ 24.319151] kasan_save_free_info+0x4c/0x78 [ 24.319229] __kasan_mempool_poison_object+0xc0/0x150 [ 24.319358] mempool_free+0x28c/0x328 [ 24.319459] mempool_double_free_helper+0x100/0x2e8 [ 24.319545] mempool_kmalloc_double_free+0xc0/0x118 [ 24.319628] kunit_try_run_case+0x170/0x3f0 [ 24.319710] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 24.319834] kthread+0x328/0x630 [ 24.319922] ret_from_fork+0x10/0x20 [ 24.319998] [ 24.320053] The buggy address belongs to the object at fff00000c66ad700 [ 24.320053] which belongs to the cache kmalloc-128 of size 128 [ 24.320201] The buggy address is located 0 bytes inside of [ 24.320201] 128-byte region [fff00000c66ad700, fff00000c66ad780) [ 24.320333] [ 24.320390] The buggy address belongs to the physical page: [ 24.320496] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1066ad [ 24.320637] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 24.320764] page_type: f5(slab) [ 24.320863] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 24.320996] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 24.321096] page dumped because: kasan: bad access detected [ 24.321160] [ 24.321193] Memory state around the buggy address: [ 24.321250] fff00000c66ad600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 24.321326] fff00000c66ad680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.321454] >fff00000c66ad700: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 24.321545] ^ [ 24.321642] fff00000c66ad780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.321730] fff00000c66ad800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 24.321804] ================================================================== [ 24.349140] ================================================================== [ 24.349331] BUG: KASAN: double-free in mempool_double_free_helper+0x150/0x2e8 [ 24.352089] Free of addr fff00000c78a4000 by task kunit_try_catch/237 [ 24.352459] [ 24.353071] CPU: 0 UID: 0 PID: 237 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250529 #1 PREEMPT [ 24.354147] Tainted: [B]=BAD_PAGE, [N]=TEST [ 24.354515] Hardware name: linux,dummy-virt (DT) [ 24.354603] Call trace: [ 24.354656] show_stack+0x20/0x38 (C) [ 24.354782] dump_stack_lvl+0x8c/0xd0 [ 24.354897] print_report+0x118/0x608 [ 24.355009] kasan_report_invalid_free+0xc0/0xe8 [ 24.355124] __kasan_mempool_poison_object+0x14c/0x150 [ 24.355239] mempool_free+0x28c/0x328 [ 24.355346] mempool_double_free_helper+0x150/0x2e8 [ 24.357001] mempool_kmalloc_large_double_free+0xc0/0x118 [ 24.357854] kunit_try_run_case+0x170/0x3f0 [ 24.358441] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 24.358581] kthread+0x328/0x630 [ 24.358669] ret_from_fork+0x10/0x20 [ 24.358772] [ 24.358837] The buggy address belongs to the physical page: [ 24.358914] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1078a4 [ 24.359053] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 24.359185] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 24.359328] page_type: f8(unknown) [ 24.359441] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 24.359572] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 24.359704] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 24.359830] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 24.359957] head: 0bfffe0000000002 ffffc1ffc31e2901 00000000ffffffff 00000000ffffffff [ 24.360085] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 24.360569] page dumped because: kasan: bad access detected [ 24.360651] [ 24.360694] Memory state around the buggy address: [ 24.360770] fff00000c78a3f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 24.360879] fff00000c78a3f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 24.361480] >fff00000c78a4000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 24.361580] ^ [ 24.361626] fff00000c78a4080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 24.361712] fff00000c78a4100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 24.361793] ================================================================== [ 24.385008] ================================================================== [ 24.385189] BUG: KASAN: double-free in mempool_double_free_helper+0x150/0x2e8 [ 24.385346] Free of addr fff00000c78a4000 by task kunit_try_catch/239 [ 24.385467] [ 24.385559] CPU: 0 UID: 0 PID: 239 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250529 #1 PREEMPT [ 24.385775] Tainted: [B]=BAD_PAGE, [N]=TEST [ 24.385844] Hardware name: linux,dummy-virt (DT) [ 24.385924] Call trace: [ 24.385977] show_stack+0x20/0x38 (C) [ 24.386101] dump_stack_lvl+0x8c/0xd0 [ 24.386224] print_report+0x118/0x608 [ 24.386339] kasan_report_invalid_free+0xc0/0xe8 [ 24.387231] __kasan_mempool_poison_pages+0xe0/0xe8 [ 24.387517] mempool_free+0x24c/0x328 [ 24.387796] mempool_double_free_helper+0x150/0x2e8 [ 24.387922] mempool_page_alloc_double_free+0xbc/0x118 [ 24.388104] kunit_try_run_case+0x170/0x3f0 [ 24.388334] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 24.388622] kthread+0x328/0x630 [ 24.389227] ret_from_fork+0x10/0x20 [ 24.389580] [ 24.389694] The buggy address belongs to the physical page: [ 24.389774] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1078a4 [ 24.390297] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 24.390526] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 24.391008] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 24.391272] page dumped because: kasan: bad access detected [ 24.391575] [ 24.391642] Memory state around the buggy address: [ 24.391828] fff00000c78a3f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 24.391935] fff00000c78a3f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 24.392128] >fff00000c78a4000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 24.392472] ^ [ 24.392553] fff00000c78a4080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 24.393251] fff00000c78a4100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 24.393497] ==================================================================
[ 12.555980] ================================================================== [ 12.556552] BUG: KASAN: double-free in mempool_double_free_helper+0x184/0x370 [ 12.556933] Free of addr ffff888102a8c000 by task kunit_try_catch/256 [ 12.557218] [ 12.557351] CPU: 1 UID: 0 PID: 256 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250529 #1 PREEMPT(voluntary) [ 12.557413] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.557426] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.557449] Call Trace: [ 12.557463] <TASK> [ 12.557479] dump_stack_lvl+0x73/0xb0 [ 12.557538] print_report+0xd1/0x650 [ 12.557562] ? __virt_addr_valid+0x1db/0x2d0 [ 12.557598] ? kasan_addr_to_slab+0x11/0xa0 [ 12.557628] ? mempool_double_free_helper+0x184/0x370 [ 12.557655] kasan_report_invalid_free+0x10a/0x130 [ 12.557679] ? mempool_double_free_helper+0x184/0x370 [ 12.557705] ? mempool_double_free_helper+0x184/0x370 [ 12.557729] __kasan_mempool_poison_pages+0x115/0x130 [ 12.557767] mempool_free+0x290/0x380 [ 12.557792] mempool_double_free_helper+0x184/0x370 [ 12.557817] ? __pfx_mempool_double_free_helper+0x10/0x10 [ 12.557851] ? update_load_avg+0x1be/0x21b0 [ 12.557876] ? update_load_avg+0x1be/0x21b0 [ 12.557897] ? update_curr+0x80/0x810 [ 12.557920] ? finish_task_switch.isra.0+0x153/0x700 [ 12.557977] mempool_page_alloc_double_free+0xe8/0x140 [ 12.558003] ? __pfx_mempool_page_alloc_double_free+0x10/0x10 [ 12.558043] ? __pfx_mempool_alloc_pages+0x10/0x10 [ 12.558064] ? __pfx_mempool_free_pages+0x10/0x10 [ 12.558087] ? __pfx_read_tsc+0x10/0x10 [ 12.558108] ? ktime_get_ts64+0x86/0x230 [ 12.558132] kunit_try_run_case+0x1a5/0x480 [ 12.558155] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.558175] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.558201] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.558225] ? __kthread_parkme+0x82/0x180 [ 12.558246] ? preempt_count_sub+0x50/0x80 [ 12.558269] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.558291] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.558315] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.558340] kthread+0x337/0x6f0 [ 12.558359] ? trace_preempt_on+0x20/0xc0 [ 12.558382] ? __pfx_kthread+0x10/0x10 [ 12.558403] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.558426] ? calculate_sigpending+0x7b/0xa0 [ 12.558450] ? __pfx_kthread+0x10/0x10 [ 12.558472] ret_from_fork+0x116/0x1d0 [ 12.558491] ? __pfx_kthread+0x10/0x10 [ 12.558511] ret_from_fork_asm+0x1a/0x30 [ 12.558548] </TASK> [ 12.558558] [ 12.569138] The buggy address belongs to the physical page: [ 12.569392] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102a8c [ 12.569815] flags: 0x200000000000000(node=0|zone=2) [ 12.570295] raw: 0200000000000000 0000000000000000 dead000000000122 0000000000000000 [ 12.570683] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 12.571213] page dumped because: kasan: bad access detected [ 12.571396] [ 12.571468] Memory state around the buggy address: [ 12.571714] ffff888102a8bf00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 12.572089] ffff888102a8bf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 12.572500] >ffff888102a8c000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 12.572997] ^ [ 12.573205] ffff888102a8c080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 12.573478] ffff888102a8c100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 12.573937] ================================================================== [ 12.526514] ================================================================== [ 12.527221] BUG: KASAN: double-free in mempool_double_free_helper+0x184/0x370 [ 12.527473] Free of addr ffff8881039d8000 by task kunit_try_catch/254 [ 12.528085] [ 12.528253] CPU: 0 UID: 0 PID: 254 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250529 #1 PREEMPT(voluntary) [ 12.528305] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.528319] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.528340] Call Trace: [ 12.528354] <TASK> [ 12.528369] dump_stack_lvl+0x73/0xb0 [ 12.528399] print_report+0xd1/0x650 [ 12.528423] ? __virt_addr_valid+0x1db/0x2d0 [ 12.528447] ? kasan_addr_to_slab+0x11/0xa0 [ 12.528469] ? mempool_double_free_helper+0x184/0x370 [ 12.528494] kasan_report_invalid_free+0x10a/0x130 [ 12.528520] ? mempool_double_free_helper+0x184/0x370 [ 12.528548] ? mempool_double_free_helper+0x184/0x370 [ 12.528571] __kasan_mempool_poison_object+0x1b3/0x1d0 [ 12.528596] mempool_free+0x2ec/0x380 [ 12.528632] mempool_double_free_helper+0x184/0x370 [ 12.528657] ? __pfx_mempool_double_free_helper+0x10/0x10 [ 12.528683] ? __kasan_check_write+0x18/0x20 [ 12.528703] ? __pfx_sched_clock_cpu+0x10/0x10 [ 12.528726] ? finish_task_switch.isra.0+0x153/0x700 [ 12.529126] mempool_kmalloc_large_double_free+0xed/0x140 [ 12.529167] ? __pfx_mempool_kmalloc_large_double_free+0x10/0x10 [ 12.529198] ? __pfx_mempool_kmalloc+0x10/0x10 [ 12.529220] ? __pfx_mempool_kfree+0x10/0x10 [ 12.529243] ? __pfx_read_tsc+0x10/0x10 [ 12.529266] ? ktime_get_ts64+0x86/0x230 [ 12.529293] kunit_try_run_case+0x1a5/0x480 [ 12.529316] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.529336] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.529362] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.529386] ? __kthread_parkme+0x82/0x180 [ 12.529407] ? preempt_count_sub+0x50/0x80 [ 12.529431] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.529453] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.529478] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.529503] kthread+0x337/0x6f0 [ 12.529523] ? trace_preempt_on+0x20/0xc0 [ 12.529546] ? __pfx_kthread+0x10/0x10 [ 12.529568] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.529591] ? calculate_sigpending+0x7b/0xa0 [ 12.529630] ? __pfx_kthread+0x10/0x10 [ 12.529653] ret_from_fork+0x116/0x1d0 [ 12.529672] ? __pfx_kthread+0x10/0x10 [ 12.529693] ret_from_fork_asm+0x1a/0x30 [ 12.529724] </TASK> [ 12.529735] [ 12.545858] The buggy address belongs to the physical page: [ 12.546078] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1039d8 [ 12.546422] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 12.546998] flags: 0x200000000000040(head|node=0|zone=2) [ 12.547256] page_type: f8(unknown) [ 12.547414] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 12.547692] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 12.548203] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 12.549012] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 12.549389] head: 0200000000000002 ffffea00040e7601 00000000ffffffff 00000000ffffffff [ 12.549743] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 12.550180] page dumped because: kasan: bad access detected [ 12.550413] [ 12.550527] Memory state around the buggy address: [ 12.550750] ffff8881039d7f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 12.551139] ffff8881039d7f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 12.551699] >ffff8881039d8000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 12.552273] ^ [ 12.552494] ffff8881039d8080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 12.552819] ffff8881039d8100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 12.553134] ================================================================== [ 12.493418] ================================================================== [ 12.494246] BUG: KASAN: double-free in mempool_double_free_helper+0x184/0x370 [ 12.494497] Free of addr ffff8881028b1400 by task kunit_try_catch/252 [ 12.494716] [ 12.494811] CPU: 1 UID: 0 PID: 252 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250529 #1 PREEMPT(voluntary) [ 12.494858] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.494870] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.494893] Call Trace: [ 12.494904] <TASK> [ 12.494920] dump_stack_lvl+0x73/0xb0 [ 12.494947] print_report+0xd1/0x650 [ 12.494969] ? __virt_addr_valid+0x1db/0x2d0 [ 12.494993] ? kasan_complete_mode_report_info+0x64/0x200 [ 12.495015] ? mempool_double_free_helper+0x184/0x370 [ 12.495041] kasan_report_invalid_free+0x10a/0x130 [ 12.495066] ? mempool_double_free_helper+0x184/0x370 [ 12.495133] ? mempool_double_free_helper+0x184/0x370 [ 12.495156] ? mempool_double_free_helper+0x184/0x370 [ 12.495191] check_slab_allocation+0x101/0x130 [ 12.495213] __kasan_mempool_poison_object+0x91/0x1d0 [ 12.495237] mempool_free+0x2ec/0x380 [ 12.495261] mempool_double_free_helper+0x184/0x370 [ 12.495285] ? __pfx_mempool_double_free_helper+0x10/0x10 [ 12.495310] ? __kasan_check_write+0x18/0x20 [ 12.495330] ? __pfx_sched_clock_cpu+0x10/0x10 [ 12.495353] ? finish_task_switch.isra.0+0x153/0x700 [ 12.495379] mempool_kmalloc_double_free+0xed/0x140 [ 12.495403] ? __pfx_mempool_kmalloc_double_free+0x10/0x10 [ 12.495430] ? __pfx_mempool_kmalloc+0x10/0x10 [ 12.495470] ? __pfx_mempool_kfree+0x10/0x10 [ 12.495492] ? __pfx_read_tsc+0x10/0x10 [ 12.495514] ? ktime_get_ts64+0x86/0x230 [ 12.495561] kunit_try_run_case+0x1a5/0x480 [ 12.495583] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.495622] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.495647] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.495673] ? __kthread_parkme+0x82/0x180 [ 12.495693] ? preempt_count_sub+0x50/0x80 [ 12.495717] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.495738] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.495798] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.495823] kthread+0x337/0x6f0 [ 12.495843] ? trace_preempt_on+0x20/0xc0 [ 12.495866] ? __pfx_kthread+0x10/0x10 [ 12.495889] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.495914] ? calculate_sigpending+0x7b/0xa0 [ 12.495940] ? __pfx_kthread+0x10/0x10 [ 12.495963] ret_from_fork+0x116/0x1d0 [ 12.495982] ? __pfx_kthread+0x10/0x10 [ 12.496002] ret_from_fork_asm+0x1a/0x30 [ 12.496034] </TASK> [ 12.496044] [ 12.507665] Allocated by task 252: [ 12.507943] kasan_save_stack+0x45/0x70 [ 12.508153] kasan_save_track+0x18/0x40 [ 12.508352] kasan_save_alloc_info+0x3b/0x50 [ 12.508575] __kasan_mempool_unpoison_object+0x1a9/0x200 [ 12.509113] remove_element+0x11e/0x190 [ 12.509271] mempool_alloc_preallocated+0x4d/0x90 [ 12.509577] mempool_double_free_helper+0x8a/0x370 [ 12.509835] mempool_kmalloc_double_free+0xed/0x140 [ 12.510213] kunit_try_run_case+0x1a5/0x480 [ 12.510419] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.510738] kthread+0x337/0x6f0 [ 12.510868] ret_from_fork+0x116/0x1d0 [ 12.511144] ret_from_fork_asm+0x1a/0x30 [ 12.511510] [ 12.511617] Freed by task 252: [ 12.511845] kasan_save_stack+0x45/0x70 [ 12.512091] kasan_save_track+0x18/0x40 [ 12.512326] kasan_save_free_info+0x3f/0x60 [ 12.512537] __kasan_mempool_poison_object+0x131/0x1d0 [ 12.512787] mempool_free+0x2ec/0x380 [ 12.512979] mempool_double_free_helper+0x109/0x370 [ 12.513170] mempool_kmalloc_double_free+0xed/0x140 [ 12.513466] kunit_try_run_case+0x1a5/0x480 [ 12.513632] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.514118] kthread+0x337/0x6f0 [ 12.514308] ret_from_fork+0x116/0x1d0 [ 12.514513] ret_from_fork_asm+0x1a/0x30 [ 12.514855] [ 12.515105] The buggy address belongs to the object at ffff8881028b1400 [ 12.515105] which belongs to the cache kmalloc-128 of size 128 [ 12.515954] The buggy address is located 0 bytes inside of [ 12.515954] 128-byte region [ffff8881028b1400, ffff8881028b1480) [ 12.516683] [ 12.516770] The buggy address belongs to the physical page: [ 12.517305] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1028b1 [ 12.517678] flags: 0x200000000000000(node=0|zone=2) [ 12.518127] page_type: f5(slab) [ 12.518405] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 12.518978] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 12.519432] page dumped because: kasan: bad access detected [ 12.519839] [ 12.519957] Memory state around the buggy address: [ 12.520390] ffff8881028b1300: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.520744] ffff8881028b1380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.521237] >ffff8881028b1400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.521545] ^ [ 12.521706] ffff8881028b1480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.522308] ffff8881028b1500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.522597] ==================================================================