Date
June 24, 2025, 12:47 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 27.057640] ================================================================== [ 27.057787] BUG: KASAN: double-free in mempool_double_free_helper+0x150/0x2e8 [ 27.057927] Free of addr fff00000c5a7b200 by task kunit_try_catch/237 [ 27.058029] [ 27.058105] CPU: 1 UID: 0 PID: 237 Comm: kunit_try_catch Tainted: G B N 6.15.4-rc2 #1 PREEMPT [ 27.058301] Tainted: [B]=BAD_PAGE, [N]=TEST [ 27.058371] Hardware name: linux,dummy-virt (DT) [ 27.058517] Call trace: [ 27.059302] show_stack+0x20/0x38 (C) [ 27.059721] dump_stack_lvl+0x8c/0xd0 [ 27.059982] print_report+0x118/0x608 [ 27.060186] kasan_report_invalid_free+0xc0/0xe8 [ 27.060813] check_slab_allocation+0xd4/0x108 [ 27.060971] __kasan_mempool_poison_object+0x78/0x150 [ 27.061194] mempool_free+0x28c/0x328 [ 27.061593] mempool_double_free_helper+0x150/0x2e8 [ 27.061810] mempool_kmalloc_double_free+0xc0/0x118 [ 27.061936] kunit_try_run_case+0x170/0x3f0 [ 27.062218] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 27.062765] kthread+0x328/0x630 [ 27.062888] ret_from_fork+0x10/0x20 [ 27.063440] [ 27.063505] Allocated by task 237: [ 27.063736] kasan_save_stack+0x3c/0x68 [ 27.064185] kasan_save_track+0x20/0x40 [ 27.064403] kasan_save_alloc_info+0x40/0x58 [ 27.064530] __kasan_mempool_unpoison_object+0x11c/0x180 [ 27.065243] remove_element+0x130/0x1f8 [ 27.065453] mempool_alloc_preallocated+0x58/0xc0 [ 27.065684] mempool_double_free_helper+0x94/0x2e8 [ 27.066211] mempool_kmalloc_double_free+0xc0/0x118 [ 27.066325] kunit_try_run_case+0x170/0x3f0 [ 27.066441] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 27.066551] kthread+0x328/0x630 [ 27.067114] ret_from_fork+0x10/0x20 [ 27.067620] [ 27.067690] Freed by task 237: [ 27.068209] kasan_save_stack+0x3c/0x68 [ 27.068360] kasan_save_track+0x20/0x40 [ 27.068489] kasan_save_free_info+0x4c/0x78 [ 27.068593] __kasan_mempool_poison_object+0xc0/0x150 [ 27.068768] mempool_free+0x28c/0x328 [ 27.069169] mempool_double_free_helper+0x100/0x2e8 [ 27.069287] mempool_kmalloc_double_free+0xc0/0x118 [ 27.069602] kunit_try_run_case+0x170/0x3f0 [ 27.069770] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 27.069900] kthread+0x328/0x630 [ 27.070288] ret_from_fork+0x10/0x20 [ 27.070493] [ 27.070578] The buggy address belongs to the object at fff00000c5a7b200 [ 27.070578] which belongs to the cache kmalloc-128 of size 128 [ 27.071403] The buggy address is located 0 bytes inside of [ 27.071403] 128-byte region [fff00000c5a7b200, fff00000c5a7b280) [ 27.071568] [ 27.071618] The buggy address belongs to the physical page: [ 27.073023] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105a7b [ 27.073170] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 27.073331] page_type: f5(slab) [ 27.073544] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 27.073745] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 27.074036] page dumped because: kasan: bad access detected [ 27.074117] [ 27.074185] Memory state around the buggy address: [ 27.074266] fff00000c5a7b100: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 27.074981] fff00000c5a7b180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 27.075134] >fff00000c5a7b200: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 27.075292] ^ [ 27.075368] fff00000c5a7b280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 27.075505] fff00000c5a7b300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 27.075628] ================================================================== [ 27.092266] ================================================================== [ 27.092408] BUG: KASAN: double-free in mempool_double_free_helper+0x150/0x2e8 [ 27.092566] Free of addr fff00000c78b0000 by task kunit_try_catch/239 [ 27.092685] [ 27.092775] CPU: 1 UID: 0 PID: 239 Comm: kunit_try_catch Tainted: G B N 6.15.4-rc2 #1 PREEMPT [ 27.093406] Tainted: [B]=BAD_PAGE, [N]=TEST [ 27.093674] Hardware name: linux,dummy-virt (DT) [ 27.093871] Call trace: [ 27.093932] show_stack+0x20/0x38 (C) [ 27.094426] dump_stack_lvl+0x8c/0xd0 [ 27.094660] print_report+0x118/0x608 [ 27.094788] kasan_report_invalid_free+0xc0/0xe8 [ 27.094969] __kasan_mempool_poison_object+0x14c/0x150 [ 27.095106] mempool_free+0x28c/0x328 [ 27.095253] mempool_double_free_helper+0x150/0x2e8 [ 27.095641] mempool_kmalloc_large_double_free+0xc0/0x118 [ 27.095818] kunit_try_run_case+0x170/0x3f0 [ 27.096163] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 27.096504] kthread+0x328/0x630 [ 27.096924] ret_from_fork+0x10/0x20 [ 27.097110] [ 27.097184] The buggy address belongs to the physical page: [ 27.097261] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1078b0 [ 27.097414] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 27.097580] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 27.097720] page_type: f8(unknown) [ 27.097819] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 27.098001] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 27.098252] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 27.098495] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 27.098867] head: 0bfffe0000000002 ffffc1ffc31e2c01 00000000ffffffff 00000000ffffffff [ 27.099297] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 27.099628] page dumped because: kasan: bad access detected [ 27.100039] [ 27.100133] Memory state around the buggy address: [ 27.100366] fff00000c78aff00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.100520] fff00000c78aff80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.100721] >fff00000c78b0000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.100994] ^ [ 27.101250] fff00000c78b0080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.101507] fff00000c78b0100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.101624] ================================================================== [ 27.120008] ================================================================== [ 27.120130] BUG: KASAN: double-free in mempool_double_free_helper+0x150/0x2e8 [ 27.120327] Free of addr fff00000c78b0000 by task kunit_try_catch/241 [ 27.120561] [ 27.120687] CPU: 1 UID: 0 PID: 241 Comm: kunit_try_catch Tainted: G B N 6.15.4-rc2 #1 PREEMPT [ 27.120913] Tainted: [B]=BAD_PAGE, [N]=TEST [ 27.120987] Hardware name: linux,dummy-virt (DT) [ 27.121248] Call trace: [ 27.121368] show_stack+0x20/0x38 (C) [ 27.121524] dump_stack_lvl+0x8c/0xd0 [ 27.121773] print_report+0x118/0x608 [ 27.121959] kasan_report_invalid_free+0xc0/0xe8 [ 27.122131] __kasan_mempool_poison_pages+0xe0/0xe8 [ 27.122308] mempool_free+0x24c/0x328 [ 27.122456] mempool_double_free_helper+0x150/0x2e8 [ 27.122589] mempool_page_alloc_double_free+0xbc/0x118 [ 27.122722] kunit_try_run_case+0x170/0x3f0 [ 27.123081] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 27.123375] kthread+0x328/0x630 [ 27.123585] ret_from_fork+0x10/0x20 [ 27.123760] [ 27.123816] The buggy address belongs to the physical page: [ 27.123933] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1078b0 [ 27.124072] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 27.124234] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 27.124362] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 27.124512] page dumped because: kasan: bad access detected [ 27.124657] [ 27.124712] Memory state around the buggy address: [ 27.124802] fff00000c78aff00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.125009] fff00000c78aff80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.125131] >fff00000c78b0000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.125238] ^ [ 27.125311] fff00000c78b0080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.125501] fff00000c78b0100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.125696] ==================================================================
[ 13.612452] ================================================================== [ 13.613009] BUG: KASAN: double-free in mempool_double_free_helper+0x184/0x370 [ 13.613447] Free of addr ffff8881029dab00 by task kunit_try_catch/255 [ 13.613684] [ 13.613881] CPU: 1 UID: 0 PID: 255 Comm: kunit_try_catch Tainted: G B N 6.15.4-rc2 #1 PREEMPT(voluntary) [ 13.614036] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.614058] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.614099] Call Trace: [ 13.614122] <TASK> [ 13.614158] dump_stack_lvl+0x73/0xb0 [ 13.614232] print_report+0xd1/0x650 [ 13.614281] ? __virt_addr_valid+0x1db/0x2d0 [ 13.614329] ? kasan_complete_mode_report_info+0x64/0x200 [ 13.614398] ? mempool_double_free_helper+0x184/0x370 [ 13.614434] kasan_report_invalid_free+0x10a/0x130 [ 13.614477] ? mempool_double_free_helper+0x184/0x370 [ 13.614523] ? mempool_double_free_helper+0x184/0x370 [ 13.614596] ? mempool_double_free_helper+0x184/0x370 [ 13.614652] check_slab_allocation+0x101/0x130 [ 13.614689] __kasan_mempool_poison_object+0x91/0x1d0 [ 13.614729] mempool_free+0x2ec/0x380 [ 13.614767] ? __wake_up+0x49/0x60 [ 13.614809] mempool_double_free_helper+0x184/0x370 [ 13.614853] ? __pfx_mempool_double_free_helper+0x10/0x10 [ 13.614900] ? dequeue_entities+0x852/0x1740 [ 13.614951] ? finish_task_switch.isra.0+0x153/0x700 [ 13.615007] mempool_kmalloc_double_free+0xed/0x140 [ 13.615046] ? __pfx_mempool_kmalloc_double_free+0x10/0x10 [ 13.615086] ? dequeue_task_fair+0x166/0x4e0 [ 13.615130] ? __pfx_mempool_kmalloc+0x10/0x10 [ 13.615169] ? __pfx_mempool_kfree+0x10/0x10 [ 13.615213] ? __pfx_read_tsc+0x10/0x10 [ 13.615254] ? ktime_get_ts64+0x86/0x230 [ 13.615303] kunit_try_run_case+0x1a5/0x480 [ 13.615355] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.615388] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.615424] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.615457] ? __kthread_parkme+0x82/0x180 [ 13.615486] ? preempt_count_sub+0x50/0x80 [ 13.615517] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.615580] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.615613] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.615670] kthread+0x337/0x6f0 [ 13.615700] ? trace_preempt_on+0x20/0xc0 [ 13.615743] ? __pfx_kthread+0x10/0x10 [ 13.615770] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.615803] ? calculate_sigpending+0x7b/0xa0 [ 13.615841] ? __pfx_kthread+0x10/0x10 [ 13.615869] ret_from_fork+0x41/0x80 [ 13.615899] ? __pfx_kthread+0x10/0x10 [ 13.615927] ret_from_fork_asm+0x1a/0x30 [ 13.615981] </TASK> [ 13.616006] [ 13.630944] Allocated by task 255: [ 13.631369] kasan_save_stack+0x45/0x70 [ 13.631820] kasan_save_track+0x18/0x40 [ 13.631994] kasan_save_alloc_info+0x3b/0x50 [ 13.632614] __kasan_mempool_unpoison_object+0x1a9/0x200 [ 13.632883] remove_element+0x11e/0x190 [ 13.633050] mempool_alloc_preallocated+0x4d/0x90 [ 13.633483] mempool_double_free_helper+0x8a/0x370 [ 13.633923] mempool_kmalloc_double_free+0xed/0x140 [ 13.634732] kunit_try_run_case+0x1a5/0x480 [ 13.634913] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.635088] kthread+0x337/0x6f0 [ 13.635345] ret_from_fork+0x41/0x80 [ 13.635508] ret_from_fork_asm+0x1a/0x30 [ 13.635770] [ 13.635905] Freed by task 255: [ 13.636127] kasan_save_stack+0x45/0x70 [ 13.636303] kasan_save_track+0x18/0x40 [ 13.636563] kasan_save_free_info+0x3f/0x60 [ 13.636778] __kasan_mempool_poison_object+0x131/0x1d0 [ 13.637135] mempool_free+0x2ec/0x380 [ 13.637423] mempool_double_free_helper+0x109/0x370 [ 13.637595] mempool_kmalloc_double_free+0xed/0x140 [ 13.637938] kunit_try_run_case+0x1a5/0x480 [ 13.638215] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.638456] kthread+0x337/0x6f0 [ 13.638647] ret_from_fork+0x41/0x80 [ 13.638952] ret_from_fork_asm+0x1a/0x30 [ 13.639719] [ 13.639880] The buggy address belongs to the object at ffff8881029dab00 [ 13.639880] which belongs to the cache kmalloc-128 of size 128 [ 13.641114] The buggy address is located 0 bytes inside of [ 13.641114] 128-byte region [ffff8881029dab00, ffff8881029dab80) [ 13.641982] [ 13.642147] The buggy address belongs to the physical page: [ 13.642596] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1029da [ 13.643112] flags: 0x200000000000000(node=0|zone=2) [ 13.643990] page_type: f5(slab) [ 13.644210] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 13.644788] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 13.645226] page dumped because: kasan: bad access detected [ 13.645882] [ 13.646013] Memory state around the buggy address: [ 13.646500] ffff8881029daa00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 13.646905] ffff8881029daa80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.647185] >ffff8881029dab00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 13.648038] ^ [ 13.648323] ffff8881029dab80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.648743] ffff8881029dac00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 13.649179] ================================================================== [ 13.683868] ================================================================== [ 13.684385] BUG: KASAN: double-free in mempool_double_free_helper+0x184/0x370 [ 13.684772] Free of addr ffff888103b6c000 by task kunit_try_catch/259 [ 13.685003] [ 13.685129] CPU: 0 UID: 0 PID: 259 Comm: kunit_try_catch Tainted: G B N 6.15.4-rc2 #1 PREEMPT(voluntary) [ 13.685220] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.685237] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.685268] Call Trace: [ 13.685289] <TASK> [ 13.685318] dump_stack_lvl+0x73/0xb0 [ 13.685360] print_report+0xd1/0x650 [ 13.685391] ? __virt_addr_valid+0x1db/0x2d0 [ 13.685420] ? kasan_addr_to_slab+0x11/0xa0 [ 13.685446] ? mempool_double_free_helper+0x184/0x370 [ 13.685477] kasan_report_invalid_free+0x10a/0x130 [ 13.685507] ? mempool_double_free_helper+0x184/0x370 [ 13.685540] ? mempool_double_free_helper+0x184/0x370 [ 13.685573] __kasan_mempool_poison_pages+0x115/0x130 [ 13.685609] mempool_free+0x290/0x380 [ 13.685664] mempool_double_free_helper+0x184/0x370 [ 13.685707] ? __pfx_mempool_double_free_helper+0x10/0x10 [ 13.685745] ? dequeue_entities+0x852/0x1740 [ 13.685787] ? finish_task_switch.isra.0+0x153/0x700 [ 13.685834] mempool_page_alloc_double_free+0xe8/0x140 [ 13.685876] ? __pfx_mempool_page_alloc_double_free+0x10/0x10 [ 13.685917] ? dequeue_task_fair+0x166/0x4e0 [ 13.685971] ? __pfx_mempool_alloc_pages+0x10/0x10 [ 13.686012] ? __pfx_mempool_free_pages+0x10/0x10 [ 13.686049] ? __pfx_read_tsc+0x10/0x10 [ 13.686080] ? ktime_get_ts64+0x86/0x230 [ 13.686159] kunit_try_run_case+0x1a5/0x480 [ 13.686206] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.686242] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.686286] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.686345] ? __kthread_parkme+0x82/0x180 [ 13.686386] ? preempt_count_sub+0x50/0x80 [ 13.686432] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.686485] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.686524] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.686559] kthread+0x337/0x6f0 [ 13.686586] ? trace_preempt_on+0x20/0xc0 [ 13.686643] ? __pfx_kthread+0x10/0x10 [ 13.686679] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.686720] ? calculate_sigpending+0x7b/0xa0 [ 13.686766] ? __pfx_kthread+0x10/0x10 [ 13.686806] ret_from_fork+0x41/0x80 [ 13.686848] ? __pfx_kthread+0x10/0x10 [ 13.686887] ret_from_fork_asm+0x1a/0x30 [ 13.686951] </TASK> [ 13.686975] [ 13.700341] The buggy address belongs to the physical page: [ 13.700614] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103b6c [ 13.701812] flags: 0x200000000000000(node=0|zone=2) [ 13.702230] raw: 0200000000000000 0000000000000000 dead000000000122 0000000000000000 [ 13.702863] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 13.703261] page dumped because: kasan: bad access detected [ 13.703811] [ 13.704020] Memory state around the buggy address: [ 13.704269] ffff888103b6bf00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.704981] ffff888103b6bf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.705423] >ffff888103b6c000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.705831] ^ [ 13.706148] ffff888103b6c080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.706734] ffff888103b6c100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.707113] ================================================================== [ 13.654880] ================================================================== [ 13.655363] BUG: KASAN: double-free in mempool_double_free_helper+0x184/0x370 [ 13.655836] Free of addr ffff888103b04000 by task kunit_try_catch/257 [ 13.656160] [ 13.656344] CPU: 1 UID: 0 PID: 257 Comm: kunit_try_catch Tainted: G B N 6.15.4-rc2 #1 PREEMPT(voluntary) [ 13.656440] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.656465] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.656505] Call Trace: [ 13.656531] <TASK> [ 13.656563] dump_stack_lvl+0x73/0xb0 [ 13.656664] print_report+0xd1/0x650 [ 13.656716] ? __virt_addr_valid+0x1db/0x2d0 [ 13.656762] ? kasan_addr_to_slab+0x11/0xa0 [ 13.656798] ? mempool_double_free_helper+0x184/0x370 [ 13.656838] kasan_report_invalid_free+0x10a/0x130 [ 13.656881] ? mempool_double_free_helper+0x184/0x370 [ 13.656926] ? mempool_double_free_helper+0x184/0x370 [ 13.656968] __kasan_mempool_poison_object+0x1b3/0x1d0 [ 13.657013] mempool_free+0x2ec/0x380 [ 13.657059] mempool_double_free_helper+0x184/0x370 [ 13.657097] ? __pfx_mempool_double_free_helper+0x10/0x10 [ 13.657138] ? dequeue_entities+0x852/0x1740 [ 13.657186] ? finish_task_switch.isra.0+0x153/0x700 [ 13.657225] mempool_kmalloc_large_double_free+0xed/0x140 [ 13.657261] ? __pfx_mempool_kmalloc_large_double_free+0x10/0x10 [ 13.657298] ? dequeue_task_fair+0x166/0x4e0 [ 13.657337] ? __pfx_mempool_kmalloc+0x10/0x10 [ 13.657372] ? __pfx_mempool_kfree+0x10/0x10 [ 13.657410] ? __pfx_read_tsc+0x10/0x10 [ 13.657443] ? ktime_get_ts64+0x86/0x230 [ 13.657482] kunit_try_run_case+0x1a5/0x480 [ 13.657525] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.657596] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.657652] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.657688] ? __kthread_parkme+0x82/0x180 [ 13.657727] ? preempt_count_sub+0x50/0x80 [ 13.657769] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.657813] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.657854] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.657876] kthread+0x337/0x6f0 [ 13.657894] ? trace_preempt_on+0x20/0xc0 [ 13.657918] ? __pfx_kthread+0x10/0x10 [ 13.657936] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.657970] ? calculate_sigpending+0x7b/0xa0 [ 13.657993] ? __pfx_kthread+0x10/0x10 [ 13.658011] ret_from_fork+0x41/0x80 [ 13.658032] ? __pfx_kthread+0x10/0x10 [ 13.658050] ret_from_fork_asm+0x1a/0x30 [ 13.658081] </TASK> [ 13.658094] [ 13.666314] The buggy address belongs to the physical page: [ 13.666714] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103b04 [ 13.667026] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 13.667287] flags: 0x200000000000040(head|node=0|zone=2) [ 13.667511] page_type: f8(unknown) [ 13.667712] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 13.668147] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 13.668563] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 13.669052] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 13.669565] head: 0200000000000002 ffffea00040ec101 00000000ffffffff 00000000ffffffff [ 13.669850] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 13.670111] page dumped because: kasan: bad access detected [ 13.670316] [ 13.670420] Memory state around the buggy address: [ 13.670647] ffff888103b03f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.670856] ffff888103b03f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.671317] >ffff888103b04000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.671781] ^ [ 13.672032] ffff888103b04080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.672468] ffff888103b04100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.672946] ==================================================================