Date
June 25, 2025, 8:08 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 28.753371] ================================================================== [ 28.753458] BUG: KASAN: double-free in mempool_double_free_helper+0x150/0x2e8 [ 28.753528] Free of addr fff00000c79f0000 by task kunit_try_catch/249 [ 28.753610] [ 28.753647] CPU: 0 UID: 0 PID: 249 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc3-next-20250625 #1 PREEMPT [ 28.753733] Tainted: [B]=BAD_PAGE, [N]=TEST [ 28.753758] Hardware name: linux,dummy-virt (DT) [ 28.753791] Call trace: [ 28.753813] show_stack+0x20/0x38 (C) [ 28.753864] dump_stack_lvl+0x8c/0xd0 [ 28.753910] print_report+0x118/0x608 [ 28.753957] kasan_report_invalid_free+0xc0/0xe8 [ 28.754009] __kasan_mempool_poison_object+0x14c/0x150 [ 28.755332] mempool_free+0x28c/0x328 [ 28.755545] mempool_double_free_helper+0x150/0x2e8 [ 28.755708] mempool_kmalloc_large_double_free+0xc0/0x118 [ 28.756213] kunit_try_run_case+0x170/0x3f0 [ 28.756293] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 28.756660] kthread+0x328/0x630 [ 28.756713] ret_from_fork+0x10/0x20 [ 28.757318] [ 28.757346] The buggy address belongs to the physical page: [ 28.757492] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1079f0 [ 28.757876] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 28.758160] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 28.758249] page_type: f8(unknown) [ 28.758591] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 28.758930] raw: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000 [ 28.759185] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 28.759261] head: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000 [ 28.759620] head: 0bfffe0000000002 ffffc1ffc31e7c01 00000000ffffffff 00000000ffffffff [ 28.759909] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 28.759954] page dumped because: kasan: bad access detected [ 28.759986] [ 28.760529] Memory state around the buggy address: [ 28.760576] fff00000c79eff00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 28.760875] fff00000c79eff80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 28.761087] >fff00000c79f0000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 28.761170] ^ [ 28.761326] fff00000c79f0080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 28.761423] fff00000c79f0100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 28.761463] ================================================================== [ 28.776641] ================================================================== [ 28.778139] BUG: KASAN: double-free in mempool_double_free_helper+0x150/0x2e8 [ 28.778444] Free of addr fff00000c79f4000 by task kunit_try_catch/251 [ 28.778488] [ 28.778526] CPU: 0 UID: 0 PID: 251 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc3-next-20250625 #1 PREEMPT [ 28.778610] Tainted: [B]=BAD_PAGE, [N]=TEST [ 28.778637] Hardware name: linux,dummy-virt (DT) [ 28.778987] Call trace: [ 28.779013] show_stack+0x20/0x38 (C) [ 28.779088] dump_stack_lvl+0x8c/0xd0 [ 28.779356] print_report+0x118/0x608 [ 28.779417] kasan_report_invalid_free+0xc0/0xe8 [ 28.779465] __kasan_mempool_poison_pages+0xe0/0xe8 [ 28.779518] mempool_free+0x24c/0x328 [ 28.779564] mempool_double_free_helper+0x150/0x2e8 [ 28.779615] mempool_page_alloc_double_free+0xbc/0x118 [ 28.780279] kunit_try_run_case+0x170/0x3f0 [ 28.780484] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 28.780596] kthread+0x328/0x630 [ 28.780828] ret_from_fork+0x10/0x20 [ 28.781010] [ 28.781036] The buggy address belongs to the physical page: [ 28.781067] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1079f4 [ 28.781365] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 28.781443] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 28.781493] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 28.781534] page dumped because: kasan: bad access detected [ 28.781564] [ 28.781585] Memory state around the buggy address: [ 28.782109] fff00000c79f3f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 28.782190] fff00000c79f3f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 28.782234] >fff00000c79f4000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 28.782389] ^ [ 28.782488] fff00000c79f4080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 28.782642] fff00000c79f4100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 28.782853] ================================================================== [ 28.722931] ================================================================== [ 28.722996] BUG: KASAN: double-free in mempool_double_free_helper+0x150/0x2e8 [ 28.723053] Free of addr fff00000c786a400 by task kunit_try_catch/247 [ 28.723094] [ 28.723126] CPU: 0 UID: 0 PID: 247 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc3-next-20250625 #1 PREEMPT [ 28.723460] Tainted: [B]=BAD_PAGE, [N]=TEST [ 28.723552] Hardware name: linux,dummy-virt (DT) [ 28.723583] Call trace: [ 28.723606] show_stack+0x20/0x38 (C) [ 28.723910] dump_stack_lvl+0x8c/0xd0 [ 28.724134] print_report+0x118/0x608 [ 28.724241] kasan_report_invalid_free+0xc0/0xe8 [ 28.724295] check_slab_allocation+0xd4/0x108 [ 28.724343] __kasan_mempool_poison_object+0x78/0x150 [ 28.724407] mempool_free+0x28c/0x328 [ 28.724798] mempool_double_free_helper+0x150/0x2e8 [ 28.724915] mempool_kmalloc_double_free+0xc0/0x118 [ 28.725386] kunit_try_run_case+0x170/0x3f0 [ 28.725597] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 28.726095] kthread+0x328/0x630 [ 28.726720] ret_from_fork+0x10/0x20 [ 28.727044] [ 28.727123] Allocated by task 247: [ 28.727425] kasan_save_stack+0x3c/0x68 [ 28.727472] kasan_save_track+0x20/0x40 [ 28.727937] kasan_save_alloc_info+0x40/0x58 [ 28.727986] __kasan_mempool_unpoison_object+0x11c/0x180 [ 28.728352] remove_element+0x130/0x1f8 [ 28.728428] mempool_alloc_preallocated+0x58/0xc0 [ 28.728467] mempool_double_free_helper+0x94/0x2e8 [ 28.728659] mempool_kmalloc_double_free+0xc0/0x118 [ 28.728886] kunit_try_run_case+0x170/0x3f0 [ 28.728923] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 28.728967] kthread+0x328/0x630 [ 28.728998] ret_from_fork+0x10/0x20 [ 28.729034] [ 28.729053] Freed by task 247: [ 28.729079] kasan_save_stack+0x3c/0x68 [ 28.729121] kasan_save_track+0x20/0x40 [ 28.729951] kasan_save_free_info+0x4c/0x78 [ 28.730000] __kasan_mempool_poison_object+0xc0/0x150 [ 28.730041] mempool_free+0x28c/0x328 [ 28.730746] mempool_double_free_helper+0x100/0x2e8 [ 28.730908] mempool_kmalloc_double_free+0xc0/0x118 [ 28.731046] kunit_try_run_case+0x170/0x3f0 [ 28.731082] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 28.731127] kthread+0x328/0x630 [ 28.731511] ret_from_fork+0x10/0x20 [ 28.731548] [ 28.732052] The buggy address belongs to the object at fff00000c786a400 [ 28.732052] which belongs to the cache kmalloc-128 of size 128 [ 28.732129] The buggy address is located 0 bytes inside of [ 28.732129] 128-byte region [fff00000c786a400, fff00000c786a480) [ 28.732638] [ 28.732664] The buggy address belongs to the physical page: [ 28.732699] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10786a [ 28.732991] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 28.733047] page_type: f5(slab) [ 28.733088] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 28.733452] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 28.733690] page dumped because: kasan: bad access detected [ 28.733869] [ 28.733923] Memory state around the buggy address: [ 28.734130] fff00000c786a300: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 28.734283] fff00000c786a380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 28.734468] >fff00000c786a400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 28.734782] ^ [ 28.734835] fff00000c786a480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 28.735187] fff00000c786a500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 28.735230] ==================================================================
[ 23.486724] ================================================================== [ 23.487373] BUG: KASAN: double-free in mempool_double_free_helper+0x184/0x370 [ 23.487663] Free of addr ffff888102597700 by task kunit_try_catch/264 [ 23.487916] [ 23.488095] CPU: 0 UID: 0 PID: 264 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc3-next-20250625 #1 PREEMPT(voluntary) [ 23.488147] Tainted: [B]=BAD_PAGE, [N]=TEST [ 23.488160] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 23.488181] Call Trace: [ 23.488195] <TASK> [ 23.488211] dump_stack_lvl+0x73/0xb0 [ 23.488239] print_report+0xd1/0x650 [ 23.488260] ? __virt_addr_valid+0x1db/0x2d0 [ 23.488286] ? kasan_complete_mode_report_info+0x64/0x200 [ 23.488310] ? mempool_double_free_helper+0x184/0x370 [ 23.488340] kasan_report_invalid_free+0x10a/0x130 [ 23.488364] ? mempool_double_free_helper+0x184/0x370 [ 23.488388] ? mempool_double_free_helper+0x184/0x370 [ 23.488409] ? mempool_double_free_helper+0x184/0x370 [ 23.488430] check_slab_allocation+0x101/0x130 [ 23.488450] __kasan_mempool_poison_object+0x91/0x1d0 [ 23.488473] mempool_free+0x2ec/0x380 [ 23.488498] mempool_double_free_helper+0x184/0x370 [ 23.488520] ? __pfx_mempool_double_free_helper+0x10/0x10 [ 23.488541] ? update_load_avg+0x1be/0x21b0 [ 23.488568] ? finish_task_switch.isra.0+0x153/0x700 [ 23.488593] mempool_kmalloc_double_free+0xed/0x140 [ 23.488615] ? __pfx_mempool_kmalloc_double_free+0x10/0x10 [ 23.488640] ? __pfx_mempool_kmalloc+0x10/0x10 [ 23.488661] ? __pfx_mempool_kfree+0x10/0x10 [ 23.488685] ? __pfx_read_tsc+0x10/0x10 [ 23.488706] ? ktime_get_ts64+0x86/0x230 [ 23.488731] kunit_try_run_case+0x1a5/0x480 [ 23.488757] ? __pfx_kunit_try_run_case+0x10/0x10 [ 23.488779] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 23.488800] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 23.488825] ? __kthread_parkme+0x82/0x180 [ 23.488844] ? preempt_count_sub+0x50/0x80 [ 23.488867] ? __pfx_kunit_try_run_case+0x10/0x10 [ 23.488929] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 23.488966] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 23.488989] kthread+0x337/0x6f0 [ 23.489007] ? trace_preempt_on+0x20/0xc0 [ 23.489032] ? __pfx_kthread+0x10/0x10 [ 23.489051] ? _raw_spin_unlock_irq+0x47/0x80 [ 23.489073] ? calculate_sigpending+0x7b/0xa0 [ 23.489096] ? __pfx_kthread+0x10/0x10 [ 23.489116] ret_from_fork+0x116/0x1d0 [ 23.489134] ? __pfx_kthread+0x10/0x10 [ 23.489153] ret_from_fork_asm+0x1a/0x30 [ 23.489183] </TASK> [ 23.489194] [ 23.498829] Allocated by task 264: [ 23.498984] kasan_save_stack+0x45/0x70 [ 23.499167] kasan_save_track+0x18/0x40 [ 23.499451] kasan_save_alloc_info+0x3b/0x50 [ 23.499998] __kasan_mempool_unpoison_object+0x1a9/0x200 [ 23.500479] remove_element+0x11e/0x190 [ 23.500753] mempool_alloc_preallocated+0x4d/0x90 [ 23.501034] mempool_double_free_helper+0x8a/0x370 [ 23.501597] mempool_kmalloc_double_free+0xed/0x140 [ 23.501908] kunit_try_run_case+0x1a5/0x480 [ 23.502356] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 23.502726] kthread+0x337/0x6f0 [ 23.503010] ret_from_fork+0x116/0x1d0 [ 23.503232] ret_from_fork_asm+0x1a/0x30 [ 23.503607] [ 23.503824] Freed by task 264: [ 23.504154] kasan_save_stack+0x45/0x70 [ 23.504344] kasan_save_track+0x18/0x40 [ 23.504512] kasan_save_free_info+0x3f/0x60 [ 23.504689] __kasan_mempool_poison_object+0x131/0x1d0 [ 23.505241] mempool_free+0x2ec/0x380 [ 23.505543] mempool_double_free_helper+0x109/0x370 [ 23.505968] mempool_kmalloc_double_free+0xed/0x140 [ 23.506445] kunit_try_run_case+0x1a5/0x480 [ 23.506658] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 23.507047] kthread+0x337/0x6f0 [ 23.507347] ret_from_fork+0x116/0x1d0 [ 23.507539] ret_from_fork_asm+0x1a/0x30 [ 23.507716] [ 23.507801] The buggy address belongs to the object at ffff888102597700 [ 23.507801] which belongs to the cache kmalloc-128 of size 128 [ 23.508819] The buggy address is located 0 bytes inside of [ 23.508819] 128-byte region [ffff888102597700, ffff888102597780) [ 23.509962] [ 23.510064] The buggy address belongs to the physical page: [ 23.510446] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102597 [ 23.510770] flags: 0x200000000000000(node=0|zone=2) [ 23.511238] page_type: f5(slab) [ 23.511412] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 23.511718] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 23.512460] page dumped because: kasan: bad access detected [ 23.512713] [ 23.512796] Memory state around the buggy address: [ 23.513133] ffff888102597600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 23.513505] ffff888102597680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.513762] >ffff888102597700: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 23.514098] ^ [ 23.514343] ffff888102597780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.514636] ffff888102597800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 23.514917] ================================================================== [ 23.520280] ================================================================== [ 23.520763] BUG: KASAN: double-free in mempool_double_free_helper+0x184/0x370 [ 23.521273] Free of addr ffff888103968000 by task kunit_try_catch/266 [ 23.521515] [ 23.521629] CPU: 1 UID: 0 PID: 266 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc3-next-20250625 #1 PREEMPT(voluntary) [ 23.521678] Tainted: [B]=BAD_PAGE, [N]=TEST [ 23.521690] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 23.521713] Call Trace: [ 23.521726] <TASK> [ 23.521742] dump_stack_lvl+0x73/0xb0 [ 23.521772] print_report+0xd1/0x650 [ 23.521792] ? __virt_addr_valid+0x1db/0x2d0 [ 23.521817] ? kasan_addr_to_slab+0x11/0xa0 [ 23.521836] ? mempool_double_free_helper+0x184/0x370 [ 23.521859] kasan_report_invalid_free+0x10a/0x130 [ 23.521881] ? mempool_double_free_helper+0x184/0x370 [ 23.521906] ? mempool_double_free_helper+0x184/0x370 [ 23.521926] __kasan_mempool_poison_object+0x1b3/0x1d0 [ 23.522061] mempool_free+0x2ec/0x380 [ 23.522088] mempool_double_free_helper+0x184/0x370 [ 23.522111] ? __pfx_mempool_double_free_helper+0x10/0x10 [ 23.522134] ? __kasan_check_write+0x18/0x20 [ 23.522157] ? __pfx_sched_clock_cpu+0x10/0x10 [ 23.522179] ? finish_task_switch.isra.0+0x153/0x700 [ 23.522204] mempool_kmalloc_large_double_free+0xed/0x140 [ 23.522227] ? __pfx_mempool_kmalloc_large_double_free+0x10/0x10 [ 23.522251] ? __kasan_check_write+0x18/0x20 [ 23.522273] ? __pfx_mempool_kmalloc+0x10/0x10 [ 23.522294] ? __pfx_mempool_kfree+0x10/0x10 [ 23.522317] ? __pfx_read_tsc+0x10/0x10 [ 23.522338] ? ktime_get_ts64+0x86/0x230 [ 23.522364] kunit_try_run_case+0x1a5/0x480 [ 23.522389] ? __pfx_kunit_try_run_case+0x10/0x10 [ 23.522412] ? _raw_spin_lock_irqsave+0xf9/0x100 [ 23.522433] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 23.522457] ? __kthread_parkme+0x82/0x180 [ 23.522477] ? preempt_count_sub+0x50/0x80 [ 23.522498] ? __pfx_kunit_try_run_case+0x10/0x10 [ 23.522521] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 23.522545] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 23.522567] kthread+0x337/0x6f0 [ 23.522585] ? trace_preempt_on+0x20/0xc0 [ 23.522608] ? __pfx_kthread+0x10/0x10 [ 23.522627] ? _raw_spin_unlock_irq+0x47/0x80 [ 23.522648] ? calculate_sigpending+0x7b/0xa0 [ 23.522672] ? __pfx_kthread+0x10/0x10 [ 23.522692] ret_from_fork+0x116/0x1d0 [ 23.522710] ? __pfx_kthread+0x10/0x10 [ 23.522728] ret_from_fork_asm+0x1a/0x30 [ 23.522757] </TASK> [ 23.522768] [ 23.531644] The buggy address belongs to the physical page: [ 23.532013] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88810396e600 pfn:0x103968 [ 23.532281] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 23.532908] flags: 0x200000000000040(head|node=0|zone=2) [ 23.533262] page_type: f8(unknown) [ 23.533442] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 23.533692] raw: ffff88810396e600 0000000000000000 00000000f8000000 0000000000000000 [ 23.533913] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 23.534191] head: ffff88810396e600 0000000000000000 00000000f8000000 0000000000000000 [ 23.534610] head: 0200000000000002 ffffea00040e5a01 00000000ffffffff 00000000ffffffff [ 23.535107] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 23.535556] page dumped because: kasan: bad access detected [ 23.535722] [ 23.535784] Memory state around the buggy address: [ 23.536134] ffff888103967f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 23.536448] ffff888103967f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 23.536714] >ffff888103968000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 23.536917] ^ [ 23.537215] ffff888103968080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 23.537538] ffff888103968100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 23.537798] ================================================================== [ 23.545199] ================================================================== [ 23.545692] BUG: KASAN: double-free in mempool_double_free_helper+0x184/0x370 [ 23.546228] Free of addr ffff888102bec000 by task kunit_try_catch/268 [ 23.546494] [ 23.546590] CPU: 0 UID: 0 PID: 268 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc3-next-20250625 #1 PREEMPT(voluntary) [ 23.546638] Tainted: [B]=BAD_PAGE, [N]=TEST [ 23.546650] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 23.546672] Call Trace: [ 23.546686] <TASK> [ 23.546703] dump_stack_lvl+0x73/0xb0 [ 23.546730] print_report+0xd1/0x650 [ 23.546751] ? __virt_addr_valid+0x1db/0x2d0 [ 23.546775] ? kasan_addr_to_slab+0x11/0xa0 [ 23.546794] ? mempool_double_free_helper+0x184/0x370 [ 23.546816] kasan_report_invalid_free+0x10a/0x130 [ 23.546852] ? mempool_double_free_helper+0x184/0x370 [ 23.546875] ? mempool_double_free_helper+0x184/0x370 [ 23.546897] __kasan_mempool_poison_pages+0x115/0x130 [ 23.546920] mempool_free+0x290/0x380 [ 23.546958] mempool_double_free_helper+0x184/0x370 [ 23.546980] ? __pfx_mempool_double_free_helper+0x10/0x10 [ 23.547003] ? __kasan_check_write+0x18/0x20 [ 23.547025] ? __pfx_sched_clock_cpu+0x10/0x10 [ 23.547047] ? finish_task_switch.isra.0+0x153/0x700 [ 23.547072] mempool_page_alloc_double_free+0xe8/0x140 [ 23.547095] ? __pfx_mempool_page_alloc_double_free+0x10/0x10 [ 23.547119] ? __kasan_check_write+0x18/0x20 [ 23.547141] ? __pfx_mempool_alloc_pages+0x10/0x10 [ 23.547164] ? __pfx_mempool_free_pages+0x10/0x10 [ 23.547189] ? __pfx_read_tsc+0x10/0x10 [ 23.547211] ? ktime_get_ts64+0x86/0x230 [ 23.547231] ? sysvec_apic_timer_interrupt+0x50/0x90 [ 23.547255] kunit_try_run_case+0x1a5/0x480 [ 23.547281] ? __pfx_kunit_try_run_case+0x10/0x10 [ 23.547397] ? queued_spin_lock_slowpath+0x116/0xb40 [ 23.547442] ? __kthread_parkme+0x82/0x180 [ 23.547461] ? preempt_count_sub+0x50/0x80 [ 23.547482] ? __pfx_kunit_try_run_case+0x10/0x10 [ 23.547506] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 23.547528] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 23.547551] kthread+0x337/0x6f0 [ 23.547571] ? trace_preempt_on+0x20/0xc0 [ 23.547592] ? __pfx_kthread+0x10/0x10 [ 23.547612] ? _raw_spin_unlock_irq+0x47/0x80 [ 23.547634] ? calculate_sigpending+0x7b/0xa0 [ 23.547658] ? __pfx_kthread+0x10/0x10 [ 23.547678] ret_from_fork+0x116/0x1d0 [ 23.547697] ? __pfx_kthread+0x10/0x10 [ 23.547715] ret_from_fork_asm+0x1a/0x30 [ 23.547743] </TASK> [ 23.547754] [ 23.559278] The buggy address belongs to the physical page: [ 23.559522] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102bec [ 23.560127] flags: 0x200000000000000(node=0|zone=2) [ 23.560524] raw: 0200000000000000 0000000000000000 dead000000000122 0000000000000000 [ 23.560976] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 23.561416] page dumped because: kasan: bad access detected [ 23.561805] [ 23.561965] Memory state around the buggy address: [ 23.562210] ffff888102bebf00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 23.562601] ffff888102bebf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 23.563131] >ffff888102bec000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 23.563437] ^ [ 23.563586] ffff888102bec080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 23.563885] ffff888102bec100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 23.564571] ==================================================================