Date
July 17, 2025, 10:12 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 31.755593] ================================================================== [ 31.755653] BUG: KASAN: double-free in mempool_double_free_helper+0x150/0x2e8 [ 31.756010] Free of addr fff00000c9bd4000 by task kunit_try_catch/268 [ 31.756306] [ 31.756347] CPU: 0 UID: 0 PID: 268 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250717 #1 PREEMPT [ 31.756673] Tainted: [B]=BAD_PAGE, [N]=TEST [ 31.756836] Hardware name: linux,dummy-virt (DT) [ 31.756868] Call trace: [ 31.756969] show_stack+0x20/0x38 (C) [ 31.757229] dump_stack_lvl+0x8c/0xd0 [ 31.757322] print_report+0x118/0x5d0 [ 31.757687] kasan_report_invalid_free+0xc0/0xe8 [ 31.757884] __kasan_mempool_poison_object+0x14c/0x150 [ 31.757972] mempool_free+0x28c/0x328 [ 31.758343] mempool_double_free_helper+0x150/0x2e8 [ 31.758455] mempool_kmalloc_large_double_free+0xc0/0x118 [ 31.758549] kunit_try_run_case+0x170/0x3f0 [ 31.758937] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.759049] kthread+0x328/0x630 [ 31.759177] ret_from_fork+0x10/0x20 [ 31.759268] [ 31.759581] The buggy address belongs to the physical page: [ 31.759648] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x109bd4 [ 31.759706] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 31.760045] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 31.760246] page_type: f8(unknown) [ 31.760307] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 31.760784] raw: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000 [ 31.760844] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 31.762123] head: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000 [ 31.762183] head: 0bfffe0000000002 ffffc1ffc326f501 00000000ffffffff 00000000ffffffff [ 31.762233] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 31.762275] page dumped because: kasan: bad access detected [ 31.762305] [ 31.762325] Memory state around the buggy address: [ 31.762357] fff00000c9bd3f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 31.762401] fff00000c9bd3f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 31.762443] >fff00000c9bd4000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 31.762481] ^ [ 31.762509] fff00000c9bd4080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 31.762550] fff00000c9bd4100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 31.762588] ================================================================== [ 31.736412] ================================================================== [ 31.736641] BUG: KASAN: double-free in mempool_double_free_helper+0x150/0x2e8 [ 31.737382] Free of addr fff00000c98f2500 by task kunit_try_catch/266 [ 31.737484] [ 31.737786] CPU: 0 UID: 0 PID: 266 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250717 #1 PREEMPT [ 31.737887] Tainted: [B]=BAD_PAGE, [N]=TEST [ 31.737938] Hardware name: linux,dummy-virt (DT) [ 31.738114] Call trace: [ 31.738203] show_stack+0x20/0x38 (C) [ 31.738376] dump_stack_lvl+0x8c/0xd0 [ 31.738432] print_report+0x118/0x5d0 [ 31.738502] kasan_report_invalid_free+0xc0/0xe8 [ 31.738597] check_slab_allocation+0xd4/0x108 [ 31.738661] __kasan_mempool_poison_object+0x78/0x150 [ 31.738711] mempool_free+0x28c/0x328 [ 31.738763] mempool_double_free_helper+0x150/0x2e8 [ 31.738818] mempool_kmalloc_double_free+0xc0/0x118 [ 31.738868] kunit_try_run_case+0x170/0x3f0 [ 31.738916] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.738970] kthread+0x328/0x630 [ 31.739013] ret_from_fork+0x10/0x20 [ 31.739088] [ 31.739117] Allocated by task 266: [ 31.739164] kasan_save_stack+0x3c/0x68 [ 31.739215] kasan_save_track+0x20/0x40 [ 31.739251] kasan_save_alloc_info+0x40/0x58 [ 31.739289] __kasan_mempool_unpoison_object+0x11c/0x180 [ 31.739329] remove_element+0x130/0x1f8 [ 31.739366] mempool_alloc_preallocated+0x58/0xc0 [ 31.739409] mempool_double_free_helper+0x94/0x2e8 [ 31.739450] mempool_kmalloc_double_free+0xc0/0x118 [ 31.739491] kunit_try_run_case+0x170/0x3f0 [ 31.739529] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.739582] kthread+0x328/0x630 [ 31.739613] ret_from_fork+0x10/0x20 [ 31.739659] [ 31.739693] Freed by task 266: [ 31.739727] kasan_save_stack+0x3c/0x68 [ 31.739770] kasan_save_track+0x20/0x40 [ 31.739820] kasan_save_free_info+0x4c/0x78 [ 31.739857] __kasan_mempool_poison_object+0xc0/0x150 [ 31.739906] mempool_free+0x28c/0x328 [ 31.739942] mempool_double_free_helper+0x100/0x2e8 [ 31.739984] mempool_kmalloc_double_free+0xc0/0x118 [ 31.740024] kunit_try_run_case+0x170/0x3f0 [ 31.740793] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.740872] kthread+0x328/0x630 [ 31.740925] ret_from_fork+0x10/0x20 [ 31.741345] [ 31.741396] The buggy address belongs to the object at fff00000c98f2500 [ 31.741396] which belongs to the cache kmalloc-128 of size 128 [ 31.741462] The buggy address is located 0 bytes inside of [ 31.741462] 128-byte region [fff00000c98f2500, fff00000c98f2580) [ 31.741592] [ 31.742014] The buggy address belongs to the physical page: [ 31.742548] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1098f2 [ 31.742811] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 31.743070] page_type: f5(slab) [ 31.743211] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 31.743787] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 31.743862] page dumped because: kasan: bad access detected [ 31.744205] [ 31.744262] Memory state around the buggy address: [ 31.744316] fff00000c98f2400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 31.744515] fff00000c98f2480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.744579] >fff00000c98f2500: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 31.744695] ^ [ 31.744727] fff00000c98f2580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.744790] fff00000c98f2600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 31.745128] ================================================================== [ 31.773403] ================================================================== [ 31.773464] BUG: KASAN: double-free in mempool_double_free_helper+0x150/0x2e8 [ 31.773520] Free of addr fff00000c9bd4000 by task kunit_try_catch/270 [ 31.773561] [ 31.773593] CPU: 0 UID: 0 PID: 270 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250717 #1 PREEMPT [ 31.773676] Tainted: [B]=BAD_PAGE, [N]=TEST [ 31.773703] Hardware name: linux,dummy-virt (DT) [ 31.773786] Call trace: [ 31.773810] show_stack+0x20/0x38 (C) [ 31.773860] dump_stack_lvl+0x8c/0xd0 [ 31.773916] print_report+0x118/0x5d0 [ 31.773972] kasan_report_invalid_free+0xc0/0xe8 [ 31.774032] __kasan_mempool_poison_pages+0xe0/0xe8 [ 31.774104] mempool_free+0x24c/0x328 [ 31.774226] mempool_double_free_helper+0x150/0x2e8 [ 31.774278] mempool_page_alloc_double_free+0xbc/0x118 [ 31.774367] kunit_try_run_case+0x170/0x3f0 [ 31.774422] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.774475] kthread+0x328/0x630 [ 31.774523] ret_from_fork+0x10/0x20 [ 31.774573] [ 31.774593] The buggy address belongs to the physical page: [ 31.774764] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x109bd4 [ 31.774827] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 31.774902] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 31.774969] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 31.775012] page dumped because: kasan: bad access detected [ 31.775113] [ 31.775131] Memory state around the buggy address: [ 31.775189] fff00000c9bd3f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 31.775233] fff00000c9bd3f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 31.775275] >fff00000c9bd4000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 31.775312] ^ [ 31.775339] fff00000c9bd4080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 31.775505] fff00000c9bd4100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 31.775548] ==================================================================
[ 27.321467] ================================================================== [ 27.321947] BUG: KASAN: double-free in mempool_double_free_helper+0x184/0x370 [ 27.322242] Free of addr ffff8881061b4000 by task kunit_try_catch/286 [ 27.322585] [ 27.322674] CPU: 0 UID: 0 PID: 286 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250717 #1 PREEMPT(voluntary) [ 27.322722] Tainted: [B]=BAD_PAGE, [N]=TEST [ 27.322734] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 27.322755] Call Trace: [ 27.322767] <TASK> [ 27.322784] dump_stack_lvl+0x73/0xb0 [ 27.322814] print_report+0xd1/0x610 [ 27.322836] ? __virt_addr_valid+0x1db/0x2d0 [ 27.322860] ? kasan_addr_to_slab+0x11/0xa0 [ 27.322880] ? mempool_double_free_helper+0x184/0x370 [ 27.322903] kasan_report_invalid_free+0x10a/0x130 [ 27.322928] ? mempool_double_free_helper+0x184/0x370 [ 27.322953] ? mempool_double_free_helper+0x184/0x370 [ 27.322975] __kasan_mempool_poison_object+0x1b3/0x1d0 [ 27.322999] mempool_free+0x2ec/0x380 [ 27.323025] mempool_double_free_helper+0x184/0x370 [ 27.323048] ? __pfx_mempool_double_free_helper+0x10/0x10 [ 27.323074] ? irqentry_exit+0x2a/0x60 [ 27.323109] ? sysvec_apic_timer_interrupt+0x50/0x90 [ 27.323135] mempool_kmalloc_large_double_free+0xed/0x140 [ 27.323159] ? __pfx_mempool_kmalloc_large_double_free+0x10/0x10 [ 27.323186] ? __pfx_mempool_kmalloc+0x10/0x10 [ 27.323207] ? __pfx_mempool_kfree+0x10/0x10 [ 27.323231] ? __pfx_mempool_kmalloc_large_double_free+0x10/0x10 [ 27.323257] ? __pfx_mempool_kmalloc_large_double_free+0x10/0x10 [ 27.323291] kunit_try_run_case+0x1a5/0x480 [ 27.323316] ? __pfx_kunit_try_run_case+0x10/0x10 [ 27.323337] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 27.323370] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 27.323393] ? __kthread_parkme+0x82/0x180 [ 27.323417] ? preempt_count_sub+0x50/0x80 [ 27.323440] ? __pfx_kunit_try_run_case+0x10/0x10 [ 27.323464] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 27.323486] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 27.323509] kthread+0x337/0x6f0 [ 27.323527] ? trace_preempt_on+0x20/0xc0 [ 27.323551] ? __pfx_kthread+0x10/0x10 [ 27.323571] ? _raw_spin_unlock_irq+0x47/0x80 [ 27.323592] ? calculate_sigpending+0x7b/0xa0 [ 27.323625] ? __pfx_kthread+0x10/0x10 [ 27.323646] ret_from_fork+0x116/0x1d0 [ 27.323665] ? __pfx_kthread+0x10/0x10 [ 27.323685] ret_from_fork_asm+0x1a/0x30 [ 27.323716] </TASK> [ 27.323726] [ 27.332098] The buggy address belongs to the physical page: [ 27.332304] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1061b4 [ 27.332546] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 27.332767] flags: 0x200000000000040(head|node=0|zone=2) [ 27.334868] page_type: f8(unknown) [ 27.335020] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 27.335261] raw: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000 [ 27.335487] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 27.336031] head: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000 [ 27.336665] head: 0200000000000002 ffffea0004186d01 00000000ffffffff 00000000ffffffff [ 27.336899] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 27.337136] page dumped because: kasan: bad access detected [ 27.337349] [ 27.337441] Memory state around the buggy address: [ 27.337891] ffff8881061b3f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.338281] ffff8881061b3f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.338596] >ffff8881061b4000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.339044] ^ [ 27.339197] ffff8881061b4080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.339575] ffff8881061b4100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.339771] ================================================================== [ 27.287591] ================================================================== [ 27.288005] BUG: KASAN: double-free in mempool_double_free_helper+0x184/0x370 [ 27.288312] Free of addr ffff888104588400 by task kunit_try_catch/284 [ 27.288884] [ 27.288997] CPU: 1 UID: 0 PID: 284 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250717 #1 PREEMPT(voluntary) [ 27.289048] Tainted: [B]=BAD_PAGE, [N]=TEST [ 27.289060] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 27.289095] Call Trace: [ 27.289106] <TASK> [ 27.289121] dump_stack_lvl+0x73/0xb0 [ 27.289151] print_report+0xd1/0x610 [ 27.289174] ? __virt_addr_valid+0x1db/0x2d0 [ 27.289198] ? kasan_complete_mode_report_info+0x64/0x200 [ 27.289224] ? mempool_double_free_helper+0x184/0x370 [ 27.289250] kasan_report_invalid_free+0x10a/0x130 [ 27.289289] ? mempool_double_free_helper+0x184/0x370 [ 27.289315] ? mempool_double_free_helper+0x184/0x370 [ 27.289338] ? mempool_double_free_helper+0x184/0x370 [ 27.289360] check_slab_allocation+0x101/0x130 [ 27.289382] __kasan_mempool_poison_object+0x91/0x1d0 [ 27.289406] mempool_free+0x2ec/0x380 [ 27.289432] mempool_double_free_helper+0x184/0x370 [ 27.289466] ? __pfx_mempool_double_free_helper+0x10/0x10 [ 27.289494] ? irqentry_exit+0x2a/0x60 [ 27.289518] ? sysvec_apic_timer_interrupt+0x50/0x90 [ 27.289546] mempool_kmalloc_double_free+0xed/0x140 [ 27.289568] ? __pfx_mempool_kmalloc_double_free+0x10/0x10 [ 27.289595] ? __pfx_mempool_kmalloc+0x10/0x10 [ 27.289617] ? __pfx_mempool_kfree+0x10/0x10 [ 27.289641] ? __pfx_mempool_kmalloc_double_free+0x10/0x10 [ 27.289667] ? __pfx_mempool_kmalloc_double_free+0x10/0x10 [ 27.289692] kunit_try_run_case+0x1a5/0x480 [ 27.289716] ? __pfx_kunit_try_run_case+0x10/0x10 [ 27.289738] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 27.289760] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 27.289783] ? __kthread_parkme+0x82/0x180 [ 27.289807] ? preempt_count_sub+0x50/0x80 [ 27.289831] ? __pfx_kunit_try_run_case+0x10/0x10 [ 27.289854] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 27.289877] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 27.289900] kthread+0x337/0x6f0 [ 27.289918] ? trace_preempt_on+0x20/0xc0 [ 27.289946] ? __pfx_kthread+0x10/0x10 [ 27.289965] ? _raw_spin_unlock_irq+0x47/0x80 [ 27.289987] ? calculate_sigpending+0x7b/0xa0 [ 27.290010] ? __pfx_kthread+0x10/0x10 [ 27.290031] ret_from_fork+0x116/0x1d0 [ 27.290051] ? __pfx_kthread+0x10/0x10 [ 27.290071] ret_from_fork_asm+0x1a/0x30 [ 27.290116] </TASK> [ 27.290127] [ 27.301421] Allocated by task 284: [ 27.301595] kasan_save_stack+0x45/0x70 [ 27.301770] kasan_save_track+0x18/0x40 [ 27.301946] kasan_save_alloc_info+0x3b/0x50 [ 27.302148] __kasan_mempool_unpoison_object+0x1a9/0x200 [ 27.302435] remove_element+0x11e/0x190 [ 27.302615] mempool_alloc_preallocated+0x4d/0x90 [ 27.302816] mempool_double_free_helper+0x8a/0x370 [ 27.303010] mempool_kmalloc_double_free+0xed/0x140 [ 27.303225] kunit_try_run_case+0x1a5/0x480 [ 27.304059] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 27.304492] kthread+0x337/0x6f0 [ 27.304738] ret_from_fork+0x116/0x1d0 [ 27.304974] ret_from_fork_asm+0x1a/0x30 [ 27.305172] [ 27.305397] Freed by task 284: [ 27.305549] kasan_save_stack+0x45/0x70 [ 27.305728] kasan_save_track+0x18/0x40 [ 27.305899] kasan_save_free_info+0x3f/0x60 [ 27.306538] __kasan_mempool_poison_object+0x131/0x1d0 [ 27.306731] mempool_free+0x2ec/0x380 [ 27.306902] mempool_double_free_helper+0x109/0x370 [ 27.307128] mempool_kmalloc_double_free+0xed/0x140 [ 27.307829] kunit_try_run_case+0x1a5/0x480 [ 27.308204] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 27.308747] kthread+0x337/0x6f0 [ 27.308998] ret_from_fork+0x116/0x1d0 [ 27.309297] ret_from_fork_asm+0x1a/0x30 [ 27.309518] [ 27.309606] The buggy address belongs to the object at ffff888104588400 [ 27.309606] which belongs to the cache kmalloc-128 of size 128 [ 27.310111] The buggy address is located 0 bytes inside of [ 27.310111] 128-byte region [ffff888104588400, ffff888104588480) [ 27.311473] [ 27.311566] The buggy address belongs to the physical page: [ 27.311996] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x104588 [ 27.312752] flags: 0x200000000000000(node=0|zone=2) [ 27.312988] page_type: f5(slab) [ 27.313150] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 27.313750] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 27.314066] page dumped because: kasan: bad access detected [ 27.314246] [ 27.314336] Memory state around the buggy address: [ 27.314855] ffff888104588300: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 27.315219] ffff888104588380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 27.315548] >ffff888104588400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 27.315871] ^ [ 27.316018] ffff888104588480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 27.316333] ffff888104588500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 27.316729] ================================================================== [ 27.344647] ================================================================== [ 27.345375] BUG: KASAN: double-free in mempool_double_free_helper+0x184/0x370 [ 27.345638] Free of addr ffff8881061b4000 by task kunit_try_catch/288 [ 27.346183] [ 27.346278] CPU: 0 UID: 0 PID: 288 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250717 #1 PREEMPT(voluntary) [ 27.346329] Tainted: [B]=BAD_PAGE, [N]=TEST [ 27.346341] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 27.346364] Call Trace: [ 27.346378] <TASK> [ 27.346394] dump_stack_lvl+0x73/0xb0 [ 27.346424] print_report+0xd1/0x610 [ 27.346446] ? __virt_addr_valid+0x1db/0x2d0 [ 27.346596] ? kasan_addr_to_slab+0x11/0xa0 [ 27.346618] ? mempool_double_free_helper+0x184/0x370 [ 27.346642] kasan_report_invalid_free+0x10a/0x130 [ 27.346667] ? mempool_double_free_helper+0x184/0x370 [ 27.346692] ? mempool_double_free_helper+0x184/0x370 [ 27.346715] __kasan_mempool_poison_pages+0x115/0x130 [ 27.346739] mempool_free+0x290/0x380 [ 27.346764] mempool_double_free_helper+0x184/0x370 [ 27.346787] ? __pfx_mempool_double_free_helper+0x10/0x10 [ 27.346814] ? finish_task_switch.isra.0+0x153/0x700 [ 27.346840] mempool_page_alloc_double_free+0xe8/0x140 [ 27.346865] ? __pfx_mempool_page_alloc_double_free+0x10/0x10 [ 27.346892] ? __pfx_mempool_alloc_pages+0x10/0x10 [ 27.346915] ? __pfx_mempool_free_pages+0x10/0x10 [ 27.346940] ? __pfx_read_tsc+0x10/0x10 [ 27.346961] ? ktime_get_ts64+0x86/0x230 [ 27.346987] kunit_try_run_case+0x1a5/0x480 [ 27.347011] ? __pfx_kunit_try_run_case+0x10/0x10 [ 27.347032] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 27.347056] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 27.347103] ? __kthread_parkme+0x82/0x180 [ 27.347128] ? preempt_count_sub+0x50/0x80 [ 27.347151] ? __pfx_kunit_try_run_case+0x10/0x10 [ 27.347174] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 27.347197] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 27.347219] kthread+0x337/0x6f0 [ 27.347278] ? trace_preempt_on+0x20/0xc0 [ 27.347304] ? __pfx_kthread+0x10/0x10 [ 27.347323] ? _raw_spin_unlock_irq+0x47/0x80 [ 27.347345] ? calculate_sigpending+0x7b/0xa0 [ 27.347369] ? __pfx_kthread+0x10/0x10 [ 27.347390] ret_from_fork+0x116/0x1d0 [ 27.347410] ? __pfx_kthread+0x10/0x10 [ 27.347430] ret_from_fork_asm+0x1a/0x30 [ 27.347462] </TASK> [ 27.347472] [ 27.357618] The buggy address belongs to the physical page: [ 27.357797] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1061b4 [ 27.358066] flags: 0x200000000000000(node=0|zone=2) [ 27.358307] raw: 0200000000000000 0000000000000000 dead000000000122 0000000000000000 [ 27.358633] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 27.358958] page dumped because: kasan: bad access detected [ 27.359203] [ 27.359269] Memory state around the buggy address: [ 27.359417] ffff8881061b3f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.359902] ffff8881061b3f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.360239] >ffff8881061b4000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.360597] ^ [ 27.360742] ffff8881061b4080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.360975] ffff8881061b4100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.361250] ==================================================================