Date
July 18, 2025, 1:09 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 33.675520] ================================================================== [ 33.675595] BUG: KASAN: double-free in mempool_double_free_helper+0x150/0x2e8 [ 33.675661] Free of addr fff00000c3fed900 by task kunit_try_catch/266 [ 33.675834] [ 33.675878] CPU: 0 UID: 0 PID: 266 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250718 #1 PREEMPT [ 33.675966] Tainted: [B]=BAD_PAGE, [N]=TEST [ 33.675993] Hardware name: linux,dummy-virt (DT) [ 33.676025] Call trace: [ 33.676047] show_stack+0x20/0x38 (C) [ 33.676196] dump_stack_lvl+0x8c/0xd0 [ 33.676354] print_report+0x118/0x5e8 [ 33.676466] kasan_report_invalid_free+0xc0/0xe8 [ 33.676551] check_slab_allocation+0xd4/0x108 [ 33.676693] __kasan_mempool_poison_object+0x78/0x150 [ 33.676754] mempool_free+0x28c/0x328 [ 33.677042] mempool_double_free_helper+0x150/0x2e8 [ 33.677136] mempool_kmalloc_double_free+0xc0/0x118 [ 33.677277] kunit_try_run_case+0x170/0x3f0 [ 33.677327] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 33.677510] kthread+0x328/0x630 [ 33.677571] ret_from_fork+0x10/0x20 [ 33.677685] [ 33.677729] Allocated by task 266: [ 33.677780] kasan_save_stack+0x3c/0x68 [ 33.677912] kasan_save_track+0x20/0x40 [ 33.677989] kasan_save_alloc_info+0x40/0x58 [ 33.678058] __kasan_mempool_unpoison_object+0x11c/0x180 [ 33.678354] remove_element+0x130/0x1f8 [ 33.678449] mempool_alloc_preallocated+0x58/0xc0 [ 33.678546] mempool_double_free_helper+0x94/0x2e8 [ 33.678660] mempool_kmalloc_double_free+0xc0/0x118 [ 33.678736] kunit_try_run_case+0x170/0x3f0 [ 33.678807] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 33.678848] kthread+0x328/0x630 [ 33.679150] ret_from_fork+0x10/0x20 [ 33.679251] [ 33.679322] Freed by task 266: [ 33.679433] kasan_save_stack+0x3c/0x68 [ 33.679473] kasan_save_track+0x20/0x40 [ 33.679522] kasan_save_free_info+0x4c/0x78 [ 33.679722] __kasan_mempool_poison_object+0xc0/0x150 [ 33.679869] mempool_free+0x28c/0x328 [ 33.679956] mempool_double_free_helper+0x100/0x2e8 [ 33.680116] mempool_kmalloc_double_free+0xc0/0x118 [ 33.680305] kunit_try_run_case+0x170/0x3f0 [ 33.680355] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 33.680409] kthread+0x328/0x630 [ 33.680450] ret_from_fork+0x10/0x20 [ 33.680586] [ 33.680655] The buggy address belongs to the object at fff00000c3fed900 [ 33.680655] which belongs to the cache kmalloc-128 of size 128 [ 33.680760] The buggy address is located 0 bytes inside of [ 33.680760] 128-byte region [fff00000c3fed900, fff00000c3fed980) [ 33.680834] [ 33.680853] The buggy address belongs to the physical page: [ 33.680884] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103fed [ 33.680937] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 33.680994] page_type: f5(slab) [ 33.681043] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 33.681107] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 33.681166] page dumped because: kasan: bad access detected [ 33.681196] [ 33.681230] Memory state around the buggy address: [ 33.681259] fff00000c3fed800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 33.681311] fff00000c3fed880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 33.681353] >fff00000c3fed900: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 33.681392] ^ [ 33.681418] fff00000c3fed980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 33.681460] fff00000c3feda00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 33.681507] ================================================================== [ 33.702545] ================================================================== [ 33.702600] BUG: KASAN: double-free in mempool_double_free_helper+0x150/0x2e8 [ 33.702654] Free of addr fff00000c9bb8000 by task kunit_try_catch/270 [ 33.702695] [ 33.702727] CPU: 0 UID: 0 PID: 270 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250718 #1 PREEMPT [ 33.702809] Tainted: [B]=BAD_PAGE, [N]=TEST [ 33.702836] Hardware name: linux,dummy-virt (DT) [ 33.702865] Call trace: [ 33.702888] show_stack+0x20/0x38 (C) [ 33.702934] dump_stack_lvl+0x8c/0xd0 [ 33.702981] print_report+0x118/0x5e8 [ 33.703023] kasan_report_invalid_free+0xc0/0xe8 [ 33.703070] __kasan_mempool_poison_pages+0xe0/0xe8 [ 33.703759] mempool_free+0x24c/0x328 [ 33.704124] mempool_double_free_helper+0x150/0x2e8 [ 33.704218] mempool_page_alloc_double_free+0xbc/0x118 [ 33.704396] kunit_try_run_case+0x170/0x3f0 [ 33.704481] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 33.704550] kthread+0x328/0x630 [ 33.704907] ret_from_fork+0x10/0x20 [ 33.705114] [ 33.705159] The buggy address belongs to the physical page: [ 33.705192] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x109bb8 [ 33.705527] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 33.705633] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 33.705704] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 33.705857] page dumped because: kasan: bad access detected [ 33.705936] [ 33.706055] Memory state around the buggy address: [ 33.706132] fff00000c9bb7f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 33.706192] fff00000c9bb7f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 33.706258] >fff00000c9bb8000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 33.706527] ^ [ 33.706640] fff00000c9bb8080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 33.706714] fff00000c9bb8100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 33.706881] ================================================================== [ 33.690421] ================================================================== [ 33.690532] BUG: KASAN: double-free in mempool_double_free_helper+0x150/0x2e8 [ 33.690591] Free of addr fff00000c9bb8000 by task kunit_try_catch/268 [ 33.690633] [ 33.690690] CPU: 0 UID: 0 PID: 268 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250718 #1 PREEMPT [ 33.690825] Tainted: [B]=BAD_PAGE, [N]=TEST [ 33.690863] Hardware name: linux,dummy-virt (DT) [ 33.690909] Call trace: [ 33.690939] show_stack+0x20/0x38 (C) [ 33.690988] dump_stack_lvl+0x8c/0xd0 [ 33.691035] print_report+0x118/0x5e8 [ 33.691087] kasan_report_invalid_free+0xc0/0xe8 [ 33.691134] __kasan_mempool_poison_object+0x14c/0x150 [ 33.691191] mempool_free+0x28c/0x328 [ 33.691237] mempool_double_free_helper+0x150/0x2e8 [ 33.691287] mempool_kmalloc_large_double_free+0xc0/0x118 [ 33.691338] kunit_try_run_case+0x170/0x3f0 [ 33.691382] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 33.691441] kthread+0x328/0x630 [ 33.691490] ret_from_fork+0x10/0x20 [ 33.691537] [ 33.691556] The buggy address belongs to the physical page: [ 33.691587] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x109bb8 [ 33.691640] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 33.691686] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 33.692149] page_type: f8(unknown) [ 33.692223] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 33.692436] raw: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000 [ 33.692586] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 33.692675] head: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000 [ 33.692835] head: 0bfffe0000000002 ffffc1ffc326ee01 00000000ffffffff 00000000ffffffff [ 33.692926] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 33.693129] page dumped because: kasan: bad access detected [ 33.693178] [ 33.693196] Memory state around the buggy address: [ 33.693236] fff00000c9bb7f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 33.693285] fff00000c9bb7f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 33.693327] >fff00000c9bb8000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 33.693363] ^ [ 33.693392] fff00000c9bb8080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 33.693535] fff00000c9bb8100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 33.693616] ==================================================================
[ 26.548712] ================================================================== [ 26.549269] BUG: KASAN: double-free in mempool_double_free_helper+0x184/0x370 [ 26.549515] Free of addr ffff88810622c000 by task kunit_try_catch/287 [ 26.549707] [ 26.549794] CPU: 0 UID: 0 PID: 287 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250718 #1 PREEMPT(voluntary) [ 26.549846] Tainted: [B]=BAD_PAGE, [N]=TEST [ 26.549867] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 26.549891] Call Trace: [ 26.549904] <TASK> [ 26.549922] dump_stack_lvl+0x73/0xb0 [ 26.549955] print_report+0xd1/0x640 [ 26.549978] ? __virt_addr_valid+0x1db/0x2d0 [ 26.550004] ? kasan_addr_to_slab+0x11/0xa0 [ 26.550024] ? mempool_double_free_helper+0x184/0x370 [ 26.550048] kasan_report_invalid_free+0x10a/0x130 [ 26.550072] ? mempool_double_free_helper+0x184/0x370 [ 26.550098] ? mempool_double_free_helper+0x184/0x370 [ 26.550120] __kasan_mempool_poison_pages+0x115/0x130 [ 26.550144] mempool_free+0x290/0x380 [ 26.550171] mempool_double_free_helper+0x184/0x370 [ 26.550194] ? __pfx_mempool_double_free_helper+0x10/0x10 [ 26.550218] ? dequeue_entities+0x23f/0x1630 [ 26.550244] ? __pfx_sched_clock_cpu+0x10/0x10 [ 26.550274] ? finish_task_switch.isra.0+0x153/0x700 [ 26.550300] mempool_page_alloc_double_free+0xe8/0x140 [ 26.550324] ? __pfx_mempool_page_alloc_double_free+0x10/0x10 [ 26.550351] ? __pfx_mempool_alloc_pages+0x10/0x10 [ 26.550373] ? __pfx_mempool_free_pages+0x10/0x10 [ 26.550398] ? __pfx_read_tsc+0x10/0x10 [ 26.550420] ? ktime_get_ts64+0x86/0x230 [ 26.550446] kunit_try_run_case+0x1a5/0x480 [ 26.550471] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.550493] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 26.550529] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 26.550561] ? __kthread_parkme+0x82/0x180 [ 26.550582] ? preempt_count_sub+0x50/0x80 [ 26.550604] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.550627] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.550656] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 26.550679] kthread+0x337/0x6f0 [ 26.550698] ? trace_preempt_on+0x20/0xc0 [ 26.550722] ? __pfx_kthread+0x10/0x10 [ 26.550742] ? _raw_spin_unlock_irq+0x47/0x80 [ 26.550772] ? calculate_sigpending+0x7b/0xa0 [ 26.550795] ? __pfx_kthread+0x10/0x10 [ 26.550816] ret_from_fork+0x116/0x1d0 [ 26.550835] ? __pfx_kthread+0x10/0x10 [ 26.550855] ret_from_fork_asm+0x1a/0x30 [ 26.550885] </TASK> [ 26.550896] [ 26.571302] The buggy address belongs to the physical page: [ 26.571557] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10622c [ 26.572297] flags: 0x200000000000000(node=0|zone=2) [ 26.572517] raw: 0200000000000000 0000000000000000 dead000000000122 0000000000000000 [ 26.573119] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 26.573578] page dumped because: kasan: bad access detected [ 26.574193] [ 26.574310] Memory state around the buggy address: [ 26.574523] ffff88810622bf00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 26.575115] ffff88810622bf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 26.575605] >ffff88810622c000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 26.576198] ^ [ 26.576443] ffff88810622c080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 26.576947] ffff88810622c100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 26.577240] ================================================================== [ 26.493824] ================================================================== [ 26.494231] BUG: KASAN: double-free in mempool_double_free_helper+0x184/0x370 [ 26.494523] Free of addr ffff888102b06b00 by task kunit_try_catch/283 [ 26.494827] [ 26.494942] CPU: 1 UID: 0 PID: 283 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250718 #1 PREEMPT(voluntary) [ 26.494993] Tainted: [B]=BAD_PAGE, [N]=TEST [ 26.495004] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 26.495028] Call Trace: [ 26.495040] <TASK> [ 26.495059] dump_stack_lvl+0x73/0xb0 [ 26.495092] print_report+0xd1/0x640 [ 26.495115] ? __virt_addr_valid+0x1db/0x2d0 [ 26.495141] ? kasan_complete_mode_report_info+0x64/0x200 [ 26.495193] ? mempool_double_free_helper+0x184/0x370 [ 26.495218] kasan_report_invalid_free+0x10a/0x130 [ 26.495242] ? mempool_double_free_helper+0x184/0x370 [ 26.495276] ? mempool_double_free_helper+0x184/0x370 [ 26.495299] ? mempool_double_free_helper+0x184/0x370 [ 26.495321] check_slab_allocation+0x101/0x130 [ 26.495342] __kasan_mempool_poison_object+0x91/0x1d0 [ 26.495366] mempool_free+0x2ec/0x380 [ 26.495394] mempool_double_free_helper+0x184/0x370 [ 26.495418] ? __pfx_mempool_double_free_helper+0x10/0x10 [ 26.495444] ? finish_task_switch.isra.0+0x153/0x700 [ 26.495471] mempool_kmalloc_double_free+0xed/0x140 [ 26.495493] ? __pfx_mempool_kmalloc_double_free+0x10/0x10 [ 26.495518] ? __pfx_mempool_kmalloc+0x10/0x10 [ 26.495554] ? __pfx_mempool_kfree+0x10/0x10 [ 26.495579] ? __pfx_read_tsc+0x10/0x10 [ 26.495622] ? ktime_get_ts64+0x86/0x230 [ 26.495647] kunit_try_run_case+0x1a5/0x480 [ 26.495673] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.495694] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 26.495729] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 26.495762] ? __kthread_parkme+0x82/0x180 [ 26.495799] ? preempt_count_sub+0x50/0x80 [ 26.495822] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.495845] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.495868] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 26.495890] kthread+0x337/0x6f0 [ 26.495909] ? trace_preempt_on+0x20/0xc0 [ 26.495933] ? __pfx_kthread+0x10/0x10 [ 26.495953] ? _raw_spin_unlock_irq+0x47/0x80 [ 26.495982] ? calculate_sigpending+0x7b/0xa0 [ 26.496007] ? __pfx_kthread+0x10/0x10 [ 26.496027] ret_from_fork+0x116/0x1d0 [ 26.496059] ? __pfx_kthread+0x10/0x10 [ 26.496103] ret_from_fork_asm+0x1a/0x30 [ 26.496135] </TASK> [ 26.496146] [ 26.504631] Allocated by task 283: [ 26.504876] kasan_save_stack+0x45/0x70 [ 26.505078] kasan_save_track+0x18/0x40 [ 26.505277] kasan_save_alloc_info+0x3b/0x50 [ 26.505462] __kasan_mempool_unpoison_object+0x1a9/0x200 [ 26.505630] remove_element+0x11e/0x190 [ 26.505896] mempool_alloc_preallocated+0x4d/0x90 [ 26.506126] mempool_double_free_helper+0x8a/0x370 [ 26.506350] mempool_kmalloc_double_free+0xed/0x140 [ 26.506555] kunit_try_run_case+0x1a5/0x480 [ 26.506743] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.507140] kthread+0x337/0x6f0 [ 26.507320] ret_from_fork+0x116/0x1d0 [ 26.507491] ret_from_fork_asm+0x1a/0x30 [ 26.507659] [ 26.507747] Freed by task 283: [ 26.507981] kasan_save_stack+0x45/0x70 [ 26.508153] kasan_save_track+0x18/0x40 [ 26.508342] kasan_save_free_info+0x3f/0x60 [ 26.508520] __kasan_mempool_poison_object+0x131/0x1d0 [ 26.508682] mempool_free+0x2ec/0x380 [ 26.508881] mempool_double_free_helper+0x109/0x370 [ 26.509046] mempool_kmalloc_double_free+0xed/0x140 [ 26.509202] kunit_try_run_case+0x1a5/0x480 [ 26.509354] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.509598] kthread+0x337/0x6f0 [ 26.509760] ret_from_fork+0x116/0x1d0 [ 26.510010] ret_from_fork_asm+0x1a/0x30 [ 26.510201] [ 26.510298] The buggy address belongs to the object at ffff888102b06b00 [ 26.510298] which belongs to the cache kmalloc-128 of size 128 [ 26.511050] The buggy address is located 0 bytes inside of [ 26.511050] 128-byte region [ffff888102b06b00, ffff888102b06b80) [ 26.511557] [ 26.511629] The buggy address belongs to the physical page: [ 26.511904] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102b06 [ 26.512269] flags: 0x200000000000000(node=0|zone=2) [ 26.512507] page_type: f5(slab) [ 26.512677] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 26.513051] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 26.513354] page dumped because: kasan: bad access detected [ 26.513581] [ 26.513664] Memory state around the buggy address: [ 26.513933] ffff888102b06a00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 26.514191] ffff888102b06a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.514501] >ffff888102b06b00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 26.514948] ^ [ 26.515122] ffff888102b06b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.515392] ffff888102b06c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 26.515689] ================================================================== [ 26.520726] ================================================================== [ 26.521618] BUG: KASAN: double-free in mempool_double_free_helper+0x184/0x370 [ 26.521934] Free of addr ffff88810622c000 by task kunit_try_catch/285 [ 26.522195] [ 26.522313] CPU: 0 UID: 0 PID: 285 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250718 #1 PREEMPT(voluntary) [ 26.522365] Tainted: [B]=BAD_PAGE, [N]=TEST [ 26.522377] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 26.522401] Call Trace: [ 26.522415] <TASK> [ 26.522434] dump_stack_lvl+0x73/0xb0 [ 26.522467] print_report+0xd1/0x640 [ 26.522491] ? __virt_addr_valid+0x1db/0x2d0 [ 26.522518] ? kasan_addr_to_slab+0x11/0xa0 [ 26.522539] ? mempool_double_free_helper+0x184/0x370 [ 26.522563] kasan_report_invalid_free+0x10a/0x130 [ 26.522587] ? mempool_double_free_helper+0x184/0x370 [ 26.522614] ? mempool_double_free_helper+0x184/0x370 [ 26.522636] __kasan_mempool_poison_object+0x1b3/0x1d0 [ 26.522666] mempool_free+0x2ec/0x380 [ 26.522693] mempool_double_free_helper+0x184/0x370 [ 26.522717] ? __pfx_mempool_double_free_helper+0x10/0x10 [ 26.522742] ? dequeue_entities+0x23f/0x1630 [ 26.522768] ? __pfx_sched_clock_cpu+0x10/0x10 [ 26.522790] ? finish_task_switch.isra.0+0x153/0x700 [ 26.522816] mempool_kmalloc_large_double_free+0xed/0x140 [ 26.522841] ? __pfx_mempool_kmalloc_large_double_free+0x10/0x10 [ 26.522868] ? __pfx_mempool_kmalloc+0x10/0x10 [ 26.522890] ? __pfx_mempool_kfree+0x10/0x10 [ 26.522914] ? __pfx_read_tsc+0x10/0x10 [ 26.522937] ? ktime_get_ts64+0x86/0x230 [ 26.522962] kunit_try_run_case+0x1a5/0x480 [ 26.522986] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.523008] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 26.523044] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 26.523078] ? __kthread_parkme+0x82/0x180 [ 26.523099] ? preempt_count_sub+0x50/0x80 [ 26.523122] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.523145] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.523168] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 26.523190] kthread+0x337/0x6f0 [ 26.523209] ? trace_preempt_on+0x20/0xc0 [ 26.523233] ? __pfx_kthread+0x10/0x10 [ 26.523254] ? _raw_spin_unlock_irq+0x47/0x80 [ 26.523724] ? calculate_sigpending+0x7b/0xa0 [ 26.523754] ? __pfx_kthread+0x10/0x10 [ 26.524046] ret_from_fork+0x116/0x1d0 [ 26.524070] ? __pfx_kthread+0x10/0x10 [ 26.524091] ret_from_fork_asm+0x1a/0x30 [ 26.524123] </TASK> [ 26.524135] [ 26.537762] The buggy address belongs to the physical page: [ 26.538017] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10622c [ 26.538360] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 26.538671] flags: 0x200000000000040(head|node=0|zone=2) [ 26.538908] page_type: f8(unknown) [ 26.539069] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 26.539421] raw: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000 [ 26.539654] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 26.539974] head: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000 [ 26.540332] head: 0200000000000002 ffffea0004188b01 00000000ffffffff 00000000ffffffff [ 26.540671] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 26.541068] page dumped because: kasan: bad access detected [ 26.541318] [ 26.541384] Memory state around the buggy address: [ 26.541537] ffff88810622bf00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 26.541912] ffff88810622bf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 26.542236] >ffff88810622c000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 26.542513] ^ [ 26.542668] ffff88810622c080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 26.542928] ffff88810622c100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 26.543229] ==================================================================