Date
July 2, 2025, 11:09 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 20.235206] ================================================================== [ 20.235283] BUG: KASAN: double-free in mempool_double_free_helper+0x150/0x2e8 [ 20.235350] Free of addr fff00000c7938000 by task kunit_try_catch/239 [ 20.235659] [ 20.235703] CPU: 0 UID: 0 PID: 239 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 20.235790] Tainted: [B]=BAD_PAGE, [N]=TEST [ 20.235818] Hardware name: linux,dummy-virt (DT) [ 20.235852] Call trace: [ 20.236051] show_stack+0x20/0x38 (C) [ 20.236121] dump_stack_lvl+0x8c/0xd0 [ 20.236326] print_report+0x118/0x608 [ 20.236538] kasan_report_invalid_free+0xc0/0xe8 [ 20.236790] __kasan_mempool_poison_pages+0xe0/0xe8 [ 20.236972] mempool_free+0x24c/0x328 [ 20.237116] mempool_double_free_helper+0x150/0x2e8 [ 20.237288] mempool_page_alloc_double_free+0xbc/0x118 [ 20.237402] kunit_try_run_case+0x170/0x3f0 [ 20.237460] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.237513] kthread+0x328/0x630 [ 20.237730] ret_from_fork+0x10/0x20 [ 20.238098] [ 20.238169] The buggy address belongs to the physical page: [ 20.238234] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107938 [ 20.238308] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 20.238418] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 20.238506] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 20.238754] page dumped because: kasan: bad access detected [ 20.239047] [ 20.239202] Memory state around the buggy address: [ 20.239295] fff00000c7937f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 20.239346] fff00000c7937f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 20.239746] >fff00000c7938000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 20.239861] ^ [ 20.239902] fff00000c7938080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 20.240448] fff00000c7938100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 20.240767] ================================================================== [ 20.192231] ================================================================== [ 20.192601] BUG: KASAN: double-free in mempool_double_free_helper+0x150/0x2e8 [ 20.192686] Free of addr fff00000c7041000 by task kunit_try_catch/235 [ 20.192743] [ 20.192804] CPU: 0 UID: 0 PID: 235 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 20.193293] Tainted: [B]=BAD_PAGE, [N]=TEST [ 20.193381] Hardware name: linux,dummy-virt (DT) [ 20.193437] Call trace: [ 20.193462] show_stack+0x20/0x38 (C) [ 20.193833] dump_stack_lvl+0x8c/0xd0 [ 20.193979] print_report+0x118/0x608 [ 20.194231] kasan_report_invalid_free+0xc0/0xe8 [ 20.194478] check_slab_allocation+0xd4/0x108 [ 20.194673] __kasan_mempool_poison_object+0x78/0x150 [ 20.194875] mempool_free+0x28c/0x328 [ 20.194965] mempool_double_free_helper+0x150/0x2e8 [ 20.195018] mempool_kmalloc_double_free+0xc0/0x118 [ 20.195240] kunit_try_run_case+0x170/0x3f0 [ 20.195560] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.195643] kthread+0x328/0x630 [ 20.196077] ret_from_fork+0x10/0x20 [ 20.196474] [ 20.196960] Allocated by task 235: [ 20.197029] kasan_save_stack+0x3c/0x68 [ 20.197205] kasan_save_track+0x20/0x40 [ 20.197267] kasan_save_alloc_info+0x40/0x58 [ 20.197314] __kasan_mempool_unpoison_object+0x11c/0x180 [ 20.197595] remove_element+0x130/0x1f8 [ 20.197841] mempool_alloc_preallocated+0x58/0xc0 [ 20.198080] mempool_double_free_helper+0x94/0x2e8 [ 20.198181] mempool_kmalloc_double_free+0xc0/0x118 [ 20.198427] kunit_try_run_case+0x170/0x3f0 [ 20.198475] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.198564] kthread+0x328/0x630 [ 20.198799] ret_from_fork+0x10/0x20 [ 20.199190] [ 20.199318] Freed by task 235: [ 20.199420] kasan_save_stack+0x3c/0x68 [ 20.199527] kasan_save_track+0x20/0x40 [ 20.199743] kasan_save_free_info+0x4c/0x78 [ 20.199889] __kasan_mempool_poison_object+0xc0/0x150 [ 20.200047] mempool_free+0x28c/0x328 [ 20.200102] mempool_double_free_helper+0x100/0x2e8 [ 20.200466] mempool_kmalloc_double_free+0xc0/0x118 [ 20.200550] kunit_try_run_case+0x170/0x3f0 [ 20.200721] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.200769] kthread+0x328/0x630 [ 20.200802] ret_from_fork+0x10/0x20 [ 20.201009] [ 20.201209] The buggy address belongs to the object at fff00000c7041000 [ 20.201209] which belongs to the cache kmalloc-128 of size 128 [ 20.201497] The buggy address is located 0 bytes inside of [ 20.201497] 128-byte region [fff00000c7041000, fff00000c7041080) [ 20.201698] [ 20.201760] The buggy address belongs to the physical page: [ 20.201793] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107041 [ 20.202023] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 20.202286] page_type: f5(slab) [ 20.202664] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 20.202779] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 20.203007] page dumped because: kasan: bad access detected [ 20.203219] [ 20.203274] Memory state around the buggy address: [ 20.203380] fff00000c7040f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 20.203465] fff00000c7040f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 20.203509] >fff00000c7041000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 20.203620] ^ [ 20.203659] fff00000c7041080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.203708] fff00000c7041100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 20.203753] ================================================================== [ 20.216147] ================================================================== [ 20.216523] BUG: KASAN: double-free in mempool_double_free_helper+0x150/0x2e8 [ 20.217362] Free of addr fff00000c7938000 by task kunit_try_catch/237 [ 20.217429] [ 20.217469] CPU: 0 UID: 0 PID: 237 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 20.217554] Tainted: [B]=BAD_PAGE, [N]=TEST [ 20.217833] Hardware name: linux,dummy-virt (DT) [ 20.217891] Call trace: [ 20.218303] show_stack+0x20/0x38 (C) [ 20.218901] dump_stack_lvl+0x8c/0xd0 [ 20.219042] print_report+0x118/0x608 [ 20.219172] kasan_report_invalid_free+0xc0/0xe8 [ 20.219294] __kasan_mempool_poison_object+0x14c/0x150 [ 20.219501] mempool_free+0x28c/0x328 [ 20.219728] mempool_double_free_helper+0x150/0x2e8 [ 20.220039] mempool_kmalloc_large_double_free+0xc0/0x118 [ 20.220161] kunit_try_run_case+0x170/0x3f0 [ 20.220401] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.220562] kthread+0x328/0x630 [ 20.220687] ret_from_fork+0x10/0x20 [ 20.220741] [ 20.220763] The buggy address belongs to the physical page: [ 20.220806] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107938 [ 20.221039] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 20.221345] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 20.221771] page_type: f8(unknown) [ 20.221941] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 20.222028] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 20.222265] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 20.222360] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 20.222663] head: 0bfffe0000000002 ffffc1ffc31e4e01 00000000ffffffff 00000000ffffffff [ 20.222747] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 20.222813] page dumped because: kasan: bad access detected [ 20.223148] [ 20.223690] Memory state around the buggy address: [ 20.223766] fff00000c7937f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 20.223813] fff00000c7937f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 20.224106] >fff00000c7938000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 20.224503] ^ [ 20.224763] fff00000c7938080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 20.224863] fff00000c7938100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 20.224903] ==================================================================
[ 13.115394] ================================================================== [ 13.116044] BUG: KASAN: double-free in mempool_double_free_helper+0x184/0x370 [ 13.116406] Free of addr ffff8881039bc000 by task kunit_try_catch/258 [ 13.116690] [ 13.116889] CPU: 1 UID: 0 PID: 258 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 13.116938] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.116950] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.116971] Call Trace: [ 13.116984] <TASK> [ 13.117001] dump_stack_lvl+0x73/0xb0 [ 13.117032] print_report+0xd1/0x650 [ 13.117055] ? __virt_addr_valid+0x1db/0x2d0 [ 13.117489] ? kasan_addr_to_slab+0x11/0xa0 [ 13.117519] ? mempool_double_free_helper+0x184/0x370 [ 13.117546] kasan_report_invalid_free+0x10a/0x130 [ 13.117754] ? mempool_double_free_helper+0x184/0x370 [ 13.117788] ? mempool_double_free_helper+0x184/0x370 [ 13.117811] __kasan_mempool_poison_pages+0x115/0x130 [ 13.117835] mempool_free+0x290/0x380 [ 13.117857] mempool_double_free_helper+0x184/0x370 [ 13.117880] ? __pfx_mempool_double_free_helper+0x10/0x10 [ 13.117905] ? __kasan_check_write+0x18/0x20 [ 13.117924] ? __pfx_sched_clock_cpu+0x10/0x10 [ 13.117946] ? finish_task_switch.isra.0+0x153/0x700 [ 13.117972] mempool_page_alloc_double_free+0xe8/0x140 [ 13.117996] ? __pfx_mempool_page_alloc_double_free+0x10/0x10 [ 13.118023] ? __pfx_mempool_alloc_pages+0x10/0x10 [ 13.118042] ? __pfx_mempool_free_pages+0x10/0x10 [ 13.118064] ? __pfx_read_tsc+0x10/0x10 [ 13.118086] ? ktime_get_ts64+0x86/0x230 [ 13.118112] kunit_try_run_case+0x1a5/0x480 [ 13.118137] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.118159] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.118182] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.118204] ? __kthread_parkme+0x82/0x180 [ 13.118225] ? preempt_count_sub+0x50/0x80 [ 13.118247] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.118271] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.118293] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.118315] kthread+0x337/0x6f0 [ 13.118334] ? trace_preempt_on+0x20/0xc0 [ 13.118357] ? __pfx_kthread+0x10/0x10 [ 13.118392] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.118411] ? calculate_sigpending+0x7b/0xa0 [ 13.118434] ? __pfx_kthread+0x10/0x10 [ 13.118456] ret_from_fork+0x116/0x1d0 [ 13.118473] ? __pfx_kthread+0x10/0x10 [ 13.118493] ret_from_fork_asm+0x1a/0x30 [ 13.118523] </TASK> [ 13.118535] [ 13.132271] The buggy address belongs to the physical page: [ 13.132767] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1039bc [ 13.133135] flags: 0x200000000000000(node=0|zone=2) [ 13.133396] raw: 0200000000000000 0000000000000000 dead000000000122 0000000000000000 [ 13.134156] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 13.134582] page dumped because: kasan: bad access detected [ 13.134996] [ 13.135118] Memory state around the buggy address: [ 13.135474] ffff8881039bbf00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.136147] ffff8881039bbf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.136456] >ffff8881039bc000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.136944] ^ [ 13.137185] ffff8881039bc080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.137541] ffff8881039bc100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.138125] ================================================================== [ 13.086805] ================================================================== [ 13.087276] BUG: KASAN: double-free in mempool_double_free_helper+0x184/0x370 [ 13.088268] Free of addr ffff8881039f4000 by task kunit_try_catch/256 [ 13.088674] [ 13.089207] CPU: 0 UID: 0 PID: 256 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 13.089260] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.089272] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.089294] Call Trace: [ 13.089307] <TASK> [ 13.089326] dump_stack_lvl+0x73/0xb0 [ 13.089357] print_report+0xd1/0x650 [ 13.089394] ? __virt_addr_valid+0x1db/0x2d0 [ 13.089418] ? kasan_addr_to_slab+0x11/0xa0 [ 13.089438] ? mempool_double_free_helper+0x184/0x370 [ 13.089461] kasan_report_invalid_free+0x10a/0x130 [ 13.089486] ? mempool_double_free_helper+0x184/0x370 [ 13.089511] ? mempool_double_free_helper+0x184/0x370 [ 13.089533] __kasan_mempool_poison_object+0x1b3/0x1d0 [ 13.089557] mempool_free+0x2ec/0x380 [ 13.089708] mempool_double_free_helper+0x184/0x370 [ 13.089734] ? __pfx_mempool_double_free_helper+0x10/0x10 [ 13.089759] ? __kasan_check_write+0x18/0x20 [ 13.089779] ? __pfx_sched_clock_cpu+0x10/0x10 [ 13.089801] ? finish_task_switch.isra.0+0x153/0x700 [ 13.089827] mempool_kmalloc_large_double_free+0xed/0x140 [ 13.089851] ? __pfx_mempool_kmalloc_large_double_free+0x10/0x10 [ 13.089877] ? __pfx_mempool_kmalloc+0x10/0x10 [ 13.089899] ? __pfx_mempool_kfree+0x10/0x10 [ 13.089923] ? __pfx_read_tsc+0x10/0x10 [ 13.089943] ? ktime_get_ts64+0x86/0x230 [ 13.089966] kunit_try_run_case+0x1a5/0x480 [ 13.089990] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.090012] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.090035] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.090058] ? __kthread_parkme+0x82/0x180 [ 13.090078] ? preempt_count_sub+0x50/0x80 [ 13.090100] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.090123] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.090145] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.090168] kthread+0x337/0x6f0 [ 13.090187] ? trace_preempt_on+0x20/0xc0 [ 13.090209] ? __pfx_kthread+0x10/0x10 [ 13.090230] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.090249] ? calculate_sigpending+0x7b/0xa0 [ 13.090271] ? __pfx_kthread+0x10/0x10 [ 13.090293] ret_from_fork+0x116/0x1d0 [ 13.090310] ? __pfx_kthread+0x10/0x10 [ 13.090330] ret_from_fork_asm+0x1a/0x30 [ 13.090372] </TASK> [ 13.090385] [ 13.103405] The buggy address belongs to the physical page: [ 13.103911] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1039f4 [ 13.104377] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 13.104867] flags: 0x200000000000040(head|node=0|zone=2) [ 13.105244] page_type: f8(unknown) [ 13.105530] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 13.106101] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 13.106451] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 13.107076] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 13.107483] head: 0200000000000002 ffffea00040e7d01 00000000ffffffff 00000000ffffffff [ 13.108049] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 13.108499] page dumped because: kasan: bad access detected [ 13.108989] [ 13.109189] Memory state around the buggy address: [ 13.109389] ffff8881039f3f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.110052] ffff8881039f3f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.110471] >ffff8881039f4000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.111024] ^ [ 13.111212] ffff8881039f4080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.111601] ffff8881039f4100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.112155] ================================================================== [ 13.052813] ================================================================== [ 13.053310] BUG: KASAN: double-free in mempool_double_free_helper+0x184/0x370 [ 13.053911] Free of addr ffff888103124200 by task kunit_try_catch/254 [ 13.054385] [ 13.054520] CPU: 0 UID: 0 PID: 254 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 13.054606] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.054620] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.054640] Call Trace: [ 13.054652] <TASK> [ 13.054667] dump_stack_lvl+0x73/0xb0 [ 13.054699] print_report+0xd1/0x650 [ 13.054723] ? __virt_addr_valid+0x1db/0x2d0 [ 13.054886] ? kasan_complete_mode_report_info+0x64/0x200 [ 13.054912] ? mempool_double_free_helper+0x184/0x370 [ 13.054938] kasan_report_invalid_free+0x10a/0x130 [ 13.054962] ? mempool_double_free_helper+0x184/0x370 [ 13.054989] ? mempool_double_free_helper+0x184/0x370 [ 13.055011] ? mempool_double_free_helper+0x184/0x370 [ 13.055033] check_slab_allocation+0x101/0x130 [ 13.055054] __kasan_mempool_poison_object+0x91/0x1d0 [ 13.055078] mempool_free+0x2ec/0x380 [ 13.055101] mempool_double_free_helper+0x184/0x370 [ 13.055124] ? __pfx_mempool_double_free_helper+0x10/0x10 [ 13.055150] ? finish_task_switch.isra.0+0x153/0x700 [ 13.055176] mempool_kmalloc_double_free+0xed/0x140 [ 13.055199] ? __pfx_mempool_kmalloc_double_free+0x10/0x10 [ 13.055225] ? __pfx_mempool_kmalloc+0x10/0x10 [ 13.055247] ? __pfx_mempool_kfree+0x10/0x10 [ 13.055271] ? __pfx_read_tsc+0x10/0x10 [ 13.055292] ? ktime_get_ts64+0x86/0x230 [ 13.055315] kunit_try_run_case+0x1a5/0x480 [ 13.055339] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.055371] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.055396] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.055417] ? __kthread_parkme+0x82/0x180 [ 13.055437] ? preempt_count_sub+0x50/0x80 [ 13.055459] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.055482] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.055504] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.055526] kthread+0x337/0x6f0 [ 13.055546] ? trace_preempt_on+0x20/0xc0 [ 13.055593] ? __pfx_kthread+0x10/0x10 [ 13.055614] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.055635] ? calculate_sigpending+0x7b/0xa0 [ 13.055659] ? __pfx_kthread+0x10/0x10 [ 13.055687] ret_from_fork+0x116/0x1d0 [ 13.055706] ? __pfx_kthread+0x10/0x10 [ 13.055728] ret_from_fork_asm+0x1a/0x30 [ 13.055777] </TASK> [ 13.055787] [ 13.068000] Allocated by task 254: [ 13.068221] kasan_save_stack+0x45/0x70 [ 13.068824] kasan_save_track+0x18/0x40 [ 13.069027] kasan_save_alloc_info+0x3b/0x50 [ 13.069375] __kasan_mempool_unpoison_object+0x1a9/0x200 [ 13.069679] remove_element+0x11e/0x190 [ 13.070137] mempool_alloc_preallocated+0x4d/0x90 [ 13.070396] mempool_double_free_helper+0x8a/0x370 [ 13.070864] mempool_kmalloc_double_free+0xed/0x140 [ 13.071118] kunit_try_run_case+0x1a5/0x480 [ 13.071438] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.071701] kthread+0x337/0x6f0 [ 13.072018] ret_from_fork+0x116/0x1d0 [ 13.072241] ret_from_fork_asm+0x1a/0x30 [ 13.072562] [ 13.072830] Freed by task 254: [ 13.072995] kasan_save_stack+0x45/0x70 [ 13.073249] kasan_save_track+0x18/0x40 [ 13.073457] kasan_save_free_info+0x3f/0x60 [ 13.073665] __kasan_mempool_poison_object+0x131/0x1d0 [ 13.073876] mempool_free+0x2ec/0x380 [ 13.074054] mempool_double_free_helper+0x109/0x370 [ 13.074279] mempool_kmalloc_double_free+0xed/0x140 [ 13.074515] kunit_try_run_case+0x1a5/0x480 [ 13.074724] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.074946] kthread+0x337/0x6f0 [ 13.075115] ret_from_fork+0x116/0x1d0 [ 13.075288] ret_from_fork_asm+0x1a/0x30 [ 13.076176] [ 13.076292] The buggy address belongs to the object at ffff888103124200 [ 13.076292] which belongs to the cache kmalloc-128 of size 128 [ 13.077212] The buggy address is located 0 bytes inside of [ 13.077212] 128-byte region [ffff888103124200, ffff888103124280) [ 13.077968] [ 13.078086] The buggy address belongs to the physical page: [ 13.078452] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103124 [ 13.078962] flags: 0x200000000000000(node=0|zone=2) [ 13.079294] page_type: f5(slab) [ 13.079567] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 13.080083] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 13.080513] page dumped because: kasan: bad access detected [ 13.080911] [ 13.081017] Memory state around the buggy address: [ 13.081241] ffff888103124100: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 13.081871] ffff888103124180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.082245] >ffff888103124200: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 13.082609] ^ [ 13.082862] ffff888103124280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.083372] ffff888103124300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 13.083797] ==================================================================