Date
July 4, 2025, 11:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 31.851039] ================================================================== [ 31.851096] BUG: KASAN: double-free in mempool_double_free_helper+0x150/0x2e8 [ 31.851501] Free of addr fff00000c9c10000 by task kunit_try_catch/272 [ 31.851559] [ 31.851590] CPU: 1 UID: 0 PID: 272 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4-next-20250704 #1 PREEMPT [ 31.851676] Tainted: [B]=BAD_PAGE, [N]=TEST [ 31.851703] Hardware name: linux,dummy-virt (DT) [ 31.851735] Call trace: [ 31.851767] show_stack+0x20/0x38 (C) [ 31.851819] dump_stack_lvl+0x8c/0xd0 [ 31.852022] print_report+0x118/0x608 [ 31.852314] kasan_report_invalid_free+0xc0/0xe8 [ 31.852389] __kasan_mempool_poison_pages+0xe0/0xe8 [ 31.852441] mempool_free+0x24c/0x328 [ 31.852487] mempool_double_free_helper+0x150/0x2e8 [ 31.852535] mempool_page_alloc_double_free+0xbc/0x118 [ 31.852817] kunit_try_run_case+0x170/0x3f0 [ 31.852913] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.852968] kthread+0x328/0x630 [ 31.853251] ret_from_fork+0x10/0x20 [ 31.853300] [ 31.853320] The buggy address belongs to the physical page: [ 31.853351] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x109c10 [ 31.853403] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 31.853463] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 31.853520] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 31.853736] page dumped because: kasan: bad access detected [ 31.853769] [ 31.853787] Memory state around the buggy address: [ 31.854092] fff00000c9c0ff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.854165] fff00000c9c0ff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.854209] >fff00000c9c10000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 31.854247] ^ [ 31.854276] fff00000c9c10080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 31.854400] fff00000c9c10100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 31.854441] ================================================================== [ 31.823874] ================================================================== [ 31.823971] BUG: KASAN: double-free in mempool_double_free_helper+0x150/0x2e8 [ 31.824226] Free of addr fff00000c929fb00 by task kunit_try_catch/268 [ 31.824428] [ 31.824569] CPU: 1 UID: 0 PID: 268 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4-next-20250704 #1 PREEMPT [ 31.824765] Tainted: [B]=BAD_PAGE, [N]=TEST [ 31.824796] Hardware name: linux,dummy-virt (DT) [ 31.824830] Call trace: [ 31.824854] show_stack+0x20/0x38 (C) [ 31.824913] dump_stack_lvl+0x8c/0xd0 [ 31.824958] print_report+0x118/0x608 [ 31.825005] kasan_report_invalid_free+0xc0/0xe8 [ 31.825054] check_slab_allocation+0xd4/0x108 [ 31.825104] __kasan_mempool_poison_object+0x78/0x150 [ 31.825155] mempool_free+0x28c/0x328 [ 31.825200] mempool_double_free_helper+0x150/0x2e8 [ 31.825250] mempool_kmalloc_double_free+0xc0/0x118 [ 31.825299] kunit_try_run_case+0x170/0x3f0 [ 31.825349] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.825433] kthread+0x328/0x630 [ 31.825476] ret_from_fork+0x10/0x20 [ 31.825524] [ 31.825543] Allocated by task 268: [ 31.825573] kasan_save_stack+0x3c/0x68 [ 31.825616] kasan_save_track+0x20/0x40 [ 31.825654] kasan_save_alloc_info+0x40/0x58 [ 31.825692] __kasan_mempool_unpoison_object+0x11c/0x180 [ 31.825765] remove_element+0x130/0x1f8 [ 31.825915] mempool_alloc_preallocated+0x58/0xc0 [ 31.826043] mempool_double_free_helper+0x94/0x2e8 [ 31.826085] mempool_kmalloc_double_free+0xc0/0x118 [ 31.826135] kunit_try_run_case+0x170/0x3f0 [ 31.826251] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.826308] kthread+0x328/0x630 [ 31.826340] ret_from_fork+0x10/0x20 [ 31.826410] [ 31.826429] Freed by task 268: [ 31.826468] kasan_save_stack+0x3c/0x68 [ 31.826617] kasan_save_track+0x20/0x40 [ 31.826686] kasan_save_free_info+0x4c/0x78 [ 31.826730] __kasan_mempool_poison_object+0xc0/0x150 [ 31.826773] mempool_free+0x28c/0x328 [ 31.826808] mempool_double_free_helper+0x100/0x2e8 [ 31.826849] mempool_kmalloc_double_free+0xc0/0x118 [ 31.826890] kunit_try_run_case+0x170/0x3f0 [ 31.826937] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.827001] kthread+0x328/0x630 [ 31.827033] ret_from_fork+0x10/0x20 [ 31.827069] [ 31.827088] The buggy address belongs to the object at fff00000c929fb00 [ 31.827088] which belongs to the cache kmalloc-128 of size 128 [ 31.827146] The buggy address is located 0 bytes inside of [ 31.827146] 128-byte region [fff00000c929fb00, fff00000c929fb80) [ 31.827223] [ 31.827243] The buggy address belongs to the physical page: [ 31.827280] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10929f [ 31.827437] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 31.827526] page_type: f5(slab) [ 31.827643] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 31.827702] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 31.827870] page dumped because: kasan: bad access detected [ 31.827911] [ 31.827930] Memory state around the buggy address: [ 31.827962] fff00000c929fa00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 31.828006] fff00000c929fa80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.828086] >fff00000c929fb00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 31.828150] ^ [ 31.828212] fff00000c929fb80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.828359] fff00000c929fc00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 31.828401] ================================================================== [ 31.836022] ================================================================== [ 31.836084] BUG: KASAN: double-free in mempool_double_free_helper+0x150/0x2e8 [ 31.836137] Free of addr fff00000c9c10000 by task kunit_try_catch/270 [ 31.836180] [ 31.836210] CPU: 1 UID: 0 PID: 270 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4-next-20250704 #1 PREEMPT [ 31.836295] Tainted: [B]=BAD_PAGE, [N]=TEST [ 31.836323] Hardware name: linux,dummy-virt (DT) [ 31.836356] Call trace: [ 31.836386] show_stack+0x20/0x38 (C) [ 31.836538] dump_stack_lvl+0x8c/0xd0 [ 31.836681] print_report+0x118/0x608 [ 31.837223] kasan_report_invalid_free+0xc0/0xe8 [ 31.837321] __kasan_mempool_poison_object+0x14c/0x150 [ 31.837387] mempool_free+0x28c/0x328 [ 31.837432] mempool_double_free_helper+0x150/0x2e8 [ 31.837847] mempool_kmalloc_large_double_free+0xc0/0x118 [ 31.838089] kunit_try_run_case+0x170/0x3f0 [ 31.838142] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.838195] kthread+0x328/0x630 [ 31.838239] ret_from_fork+0x10/0x20 [ 31.838287] [ 31.838317] The buggy address belongs to the physical page: [ 31.838349] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x109c10 [ 31.839518] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 31.839622] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 31.839682] page_type: f8(unknown) [ 31.839980] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 31.840090] raw: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000 [ 31.840174] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 31.840236] head: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000 [ 31.840427] head: 0bfffe0000000002 ffffc1ffc3270401 00000000ffffffff 00000000ffffffff [ 31.840524] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 31.840707] page dumped because: kasan: bad access detected [ 31.840741] [ 31.840760] Memory state around the buggy address: [ 31.841140] fff00000c9c0ff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.841191] fff00000c9c0ff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.841256] >fff00000c9c10000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 31.841296] ^ [ 31.841323] fff00000c9c10080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 31.841423] fff00000c9c10100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 31.841596] ==================================================================
[ 26.773931] ================================================================== [ 26.775093] BUG: KASAN: double-free in mempool_double_free_helper+0x184/0x370 [ 26.776190] Free of addr ffff8881062d8000 by task kunit_try_catch/288 [ 26.776948] [ 26.777070] CPU: 0 UID: 0 PID: 288 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4-next-20250704 #1 PREEMPT(voluntary) [ 26.777133] Tainted: [B]=BAD_PAGE, [N]=TEST [ 26.777300] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 26.777336] Call Trace: [ 26.777355] <TASK> [ 26.777379] dump_stack_lvl+0x73/0xb0 [ 26.777467] print_report+0xd1/0x650 [ 26.777495] ? __virt_addr_valid+0x1db/0x2d0 [ 26.777523] ? kasan_addr_to_slab+0x11/0xa0 [ 26.777551] ? mempool_double_free_helper+0x184/0x370 [ 26.777578] kasan_report_invalid_free+0x10a/0x130 [ 26.777605] ? mempool_double_free_helper+0x184/0x370 [ 26.777633] ? mempool_double_free_helper+0x184/0x370 [ 26.777659] __kasan_mempool_poison_pages+0x115/0x130 [ 26.777685] mempool_free+0x290/0x380 [ 26.777716] mempool_double_free_helper+0x184/0x370 [ 26.777742] ? __pfx_mempool_double_free_helper+0x10/0x10 [ 26.777768] ? __kasan_check_write+0x18/0x20 [ 26.777794] ? __pfx_sched_clock_cpu+0x10/0x10 [ 26.777818] ? finish_task_switch.isra.0+0x153/0x700 [ 26.777848] mempool_page_alloc_double_free+0xe8/0x140 [ 26.777875] ? __pfx_mempool_page_alloc_double_free+0x10/0x10 [ 26.777907] ? __pfx_mempool_alloc_pages+0x10/0x10 [ 26.777932] ? __pfx_mempool_free_pages+0x10/0x10 [ 26.777960] ? __pfx_read_tsc+0x10/0x10 [ 26.777984] ? ktime_get_ts64+0x86/0x230 [ 26.778013] kunit_try_run_case+0x1a5/0x480 [ 26.778043] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.778068] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 26.778096] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 26.778123] ? __kthread_parkme+0x82/0x180 [ 26.778155] ? preempt_count_sub+0x50/0x80 [ 26.778180] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.778207] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.778234] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 26.778261] kthread+0x337/0x6f0 [ 26.778283] ? trace_preempt_on+0x20/0xc0 [ 26.778309] ? __pfx_kthread+0x10/0x10 [ 26.778333] ? _raw_spin_unlock_irq+0x47/0x80 [ 26.778358] ? calculate_sigpending+0x7b/0xa0 [ 26.778385] ? __pfx_kthread+0x10/0x10 [ 26.778421] ret_from_fork+0x116/0x1d0 [ 26.778443] ? __pfx_kthread+0x10/0x10 [ 26.778465] ret_from_fork_asm+0x1a/0x30 [ 26.778501] </TASK> [ 26.778515] [ 26.795649] The buggy address belongs to the physical page: [ 26.795966] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1062d8 [ 26.796443] flags: 0x200000000000000(node=0|zone=2) [ 26.796645] raw: 0200000000000000 0000000000000000 dead000000000122 0000000000000000 [ 26.797107] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 26.797441] page dumped because: kasan: bad access detected [ 26.797774] [ 26.798082] Memory state around the buggy address: [ 26.798814] ffff8881062d7f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 26.799382] ffff8881062d7f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 26.799835] >ffff8881062d8000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 26.800333] ^ [ 26.800540] ffff8881062d8080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 26.801091] ffff8881062d8100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 26.801597] ================================================================== [ 26.703749] ================================================================== [ 26.704332] BUG: KASAN: double-free in mempool_double_free_helper+0x184/0x370 [ 26.704758] Free of addr ffff888105aaca00 by task kunit_try_catch/284 [ 26.705173] [ 26.705281] CPU: 0 UID: 0 PID: 284 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4-next-20250704 #1 PREEMPT(voluntary) [ 26.705341] Tainted: [B]=BAD_PAGE, [N]=TEST [ 26.705356] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 26.705384] Call Trace: [ 26.705471] <TASK> [ 26.705496] dump_stack_lvl+0x73/0xb0 [ 26.705532] print_report+0xd1/0x650 [ 26.705558] ? __virt_addr_valid+0x1db/0x2d0 [ 26.705588] ? kasan_complete_mode_report_info+0x64/0x200 [ 26.705618] ? mempool_double_free_helper+0x184/0x370 [ 26.705644] kasan_report_invalid_free+0x10a/0x130 [ 26.705671] ? mempool_double_free_helper+0x184/0x370 [ 26.705699] ? mempool_double_free_helper+0x184/0x370 [ 26.705724] ? mempool_double_free_helper+0x184/0x370 [ 26.705749] check_slab_allocation+0x101/0x130 [ 26.705778] __kasan_mempool_poison_object+0x91/0x1d0 [ 26.705805] mempool_free+0x2ec/0x380 [ 26.705836] mempool_double_free_helper+0x184/0x370 [ 26.705861] ? __pfx_mempool_double_free_helper+0x10/0x10 [ 26.705889] ? __kasan_check_write+0x18/0x20 [ 26.705914] ? __pfx_sched_clock_cpu+0x10/0x10 [ 26.705939] ? finish_task_switch.isra.0+0x153/0x700 [ 26.705968] mempool_kmalloc_double_free+0xed/0x140 [ 26.705993] ? __pfx_mempool_kmalloc_double_free+0x10/0x10 [ 26.706022] ? __pfx_mempool_kmalloc+0x10/0x10 [ 26.706047] ? __pfx_mempool_kfree+0x10/0x10 [ 26.706072] ? irqentry_exit+0x2a/0x60 [ 26.706099] ? __pfx_read_tsc+0x10/0x10 [ 26.706125] ? ktime_get_ts64+0x86/0x230 [ 26.706189] kunit_try_run_case+0x1a5/0x480 [ 26.706221] ? sysvec_apic_timer_interrupt+0x50/0x90 [ 26.706250] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.706277] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.706310] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.706339] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.706367] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 26.706405] kthread+0x337/0x6f0 [ 26.706428] ? trace_preempt_on+0x20/0xc0 [ 26.706455] ? __pfx_kthread+0x10/0x10 [ 26.706478] ? _raw_spin_unlock_irq+0x47/0x80 [ 26.706504] ? calculate_sigpending+0x7b/0xa0 [ 26.706532] ? __pfx_kthread+0x10/0x10 [ 26.706556] ret_from_fork+0x116/0x1d0 [ 26.706577] ? __pfx_kthread+0x10/0x10 [ 26.706600] ret_from_fork_asm+0x1a/0x30 [ 26.706635] </TASK> [ 26.706649] [ 26.716813] Allocated by task 284: [ 26.716961] kasan_save_stack+0x45/0x70 [ 26.717401] kasan_save_track+0x18/0x40 [ 26.717618] kasan_save_alloc_info+0x3b/0x50 [ 26.717837] __kasan_mempool_unpoison_object+0x1a9/0x200 [ 26.718761] remove_element+0x11e/0x190 [ 26.719441] mempool_alloc_preallocated+0x4d/0x90 [ 26.720214] mempool_double_free_helper+0x8a/0x370 [ 26.720486] mempool_kmalloc_double_free+0xed/0x140 [ 26.720717] kunit_try_run_case+0x1a5/0x480 [ 26.721023] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.721268] kthread+0x337/0x6f0 [ 26.721467] ret_from_fork+0x116/0x1d0 [ 26.721673] ret_from_fork_asm+0x1a/0x30 [ 26.721841] [ 26.721928] Freed by task 284: [ 26.722408] kasan_save_stack+0x45/0x70 [ 26.722595] kasan_save_track+0x18/0x40 [ 26.722771] kasan_save_free_info+0x3f/0x60 [ 26.723102] __kasan_mempool_poison_object+0x131/0x1d0 [ 26.723294] mempool_free+0x2ec/0x380 [ 26.723580] mempool_double_free_helper+0x109/0x370 [ 26.723800] mempool_kmalloc_double_free+0xed/0x140 [ 26.724613] kunit_try_run_case+0x1a5/0x480 [ 26.724804] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.725016] kthread+0x337/0x6f0 [ 26.725143] ret_from_fork+0x116/0x1d0 [ 26.725565] ret_from_fork_asm+0x1a/0x30 [ 26.725990] [ 26.726250] The buggy address belongs to the object at ffff888105aaca00 [ 26.726250] which belongs to the cache kmalloc-128 of size 128 [ 26.726827] The buggy address is located 0 bytes inside of [ 26.726827] 128-byte region [ffff888105aaca00, ffff888105aaca80) [ 26.727826] [ 26.728054] The buggy address belongs to the physical page: [ 26.728629] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105aac [ 26.729362] flags: 0x200000000000000(node=0|zone=2) [ 26.729562] page_type: f5(slab) [ 26.729693] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 26.729982] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 26.730403] page dumped because: kasan: bad access detected [ 26.730616] [ 26.730694] Memory state around the buggy address: [ 26.731079] ffff888105aac900: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 26.731360] ffff888105aac980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.731856] >ffff888105aaca00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 26.732081] ^ [ 26.732453] ffff888105aaca80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.732814] ffff888105aacb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 26.733051] ================================================================== [ 26.736556] ================================================================== [ 26.737124] BUG: KASAN: double-free in mempool_double_free_helper+0x184/0x370 [ 26.737380] Free of addr ffff888106268000 by task kunit_try_catch/286 [ 26.737704] [ 26.737830] CPU: 1 UID: 0 PID: 286 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4-next-20250704 #1 PREEMPT(voluntary) [ 26.737889] Tainted: [B]=BAD_PAGE, [N]=TEST [ 26.737903] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 26.738059] Call Trace: [ 26.738115] <TASK> [ 26.738173] dump_stack_lvl+0x73/0xb0 [ 26.738208] print_report+0xd1/0x650 [ 26.738247] ? __virt_addr_valid+0x1db/0x2d0 [ 26.738276] ? kasan_addr_to_slab+0x11/0xa0 [ 26.738303] ? mempool_double_free_helper+0x184/0x370 [ 26.738330] kasan_report_invalid_free+0x10a/0x130 [ 26.738356] ? mempool_double_free_helper+0x184/0x370 [ 26.738386] ? mempool_double_free_helper+0x184/0x370 [ 26.738421] __kasan_mempool_poison_object+0x1b3/0x1d0 [ 26.738448] mempool_free+0x2ec/0x380 [ 26.738476] mempool_double_free_helper+0x184/0x370 [ 26.738502] ? __pfx_mempool_double_free_helper+0x10/0x10 [ 26.738526] ? update_load_avg+0x1be/0x21b0 [ 26.738553] ? dequeue_entities+0x27e/0x1740 [ 26.738580] ? finish_task_switch.isra.0+0x153/0x700 [ 26.738609] mempool_kmalloc_large_double_free+0xed/0x140 [ 26.738637] ? __pfx_mempool_kmalloc_large_double_free+0x10/0x10 [ 26.738667] ? __pfx_mempool_kmalloc+0x10/0x10 [ 26.738691] ? __pfx_mempool_kfree+0x10/0x10 [ 26.738719] ? __pfx_read_tsc+0x10/0x10 [ 26.738777] ? ktime_get_ts64+0x86/0x230 [ 26.738805] kunit_try_run_case+0x1a5/0x480 [ 26.738834] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.738938] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 26.738979] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 26.739007] ? __kthread_parkme+0x82/0x180 [ 26.739030] ? preempt_count_sub+0x50/0x80 [ 26.739057] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.739084] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.739112] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 26.739157] kthread+0x337/0x6f0 [ 26.739180] ? trace_preempt_on+0x20/0xc0 [ 26.739206] ? __pfx_kthread+0x10/0x10 [ 26.739229] ? _raw_spin_unlock_irq+0x47/0x80 [ 26.739254] ? calculate_sigpending+0x7b/0xa0 [ 26.739281] ? __pfx_kthread+0x10/0x10 [ 26.739304] ret_from_fork+0x116/0x1d0 [ 26.739325] ? __pfx_kthread+0x10/0x10 [ 26.739349] ret_from_fork_asm+0x1a/0x30 [ 26.739383] </TASK> [ 26.739410] [ 26.758051] The buggy address belongs to the physical page: [ 26.758537] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106268 [ 26.759373] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 26.759968] flags: 0x200000000000040(head|node=0|zone=2) [ 26.760270] page_type: f8(unknown) [ 26.760711] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 26.761571] raw: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000 [ 26.762240] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 26.762508] head: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000 [ 26.762760] head: 0200000000000002 ffffea0004189a01 00000000ffffffff 00000000ffffffff [ 26.763384] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 26.764228] page dumped because: kasan: bad access detected [ 26.764790] [ 26.765009] Memory state around the buggy address: [ 26.765530] ffff888106267f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 26.766274] ffff888106267f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 26.766979] >ffff888106268000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 26.767793] ^ [ 26.768100] ffff888106268080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 26.768690] ffff888106268100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 26.769278] ==================================================================