Date
June 24, 2025, 11:37 a.m.
| Environment | |
|---|---|
| dragonboard-845c | |
| qemu-arm64 | |
| qemu-x86_64 |
[ 48.576619] ================================================================== [ 48.589243] BUG: KASAN: double-free in mempool_double_free_helper+0x150/0x2e8 [ 48.596482] Free of addr ffff000095610000 by task kunit_try_catch/337 [ 48.603010] [ 48.604551] CPU: 4 UID: 0 PID: 337 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc3-next-20250624 #1 PREEMPT [ 48.604586] Tainted: [B]=BAD_PAGE, [N]=TEST [ 48.604596] Hardware name: Thundercomm Dragonboard 845c (DT) [ 48.604612] Call trace: [ 48.604620] show_stack+0x20/0x38 (C) [ 48.604640] dump_stack_lvl+0x8c/0xd0 [ 48.604661] print_report+0x118/0x608 [ 48.604681] kasan_report_invalid_free+0xc0/0xe8 [ 48.604703] __kasan_mempool_poison_pages+0xe0/0xe8 [ 48.604723] mempool_free+0x24c/0x328 [ 48.604741] mempool_double_free_helper+0x150/0x2e8 [ 48.604759] mempool_page_alloc_double_free+0xbc/0x118 [ 48.604779] kunit_try_run_case+0x170/0x3f0 [ 48.604798] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 48.604819] kthread+0x328/0x630 [ 48.604833] ret_from_fork+0x10/0x20 [ 48.604853] [ 48.681270] The buggy address belongs to the physical page: [ 48.686916] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x115610 [ 48.695019] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 48.701640] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 48.709481] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 48.717317] page dumped because: kasan: bad access detected [ 48.722958] [ 48.724488] Memory state around the buggy address: [ 48.729342] ffff00009560ff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 48.736657] ffff00009560ff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 48.743973] >ffff000095610000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 48.751286] ^ [ 48.754566] ffff000095610080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 48.761880] ffff000095610100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 48.769193] ================================================================== [ 47.942736] ================================================================== [ 47.954401] BUG: KASAN: double-free in mempool_double_free_helper+0x150/0x2e8 [ 47.961645] Free of addr ffff000080f19400 by task kunit_try_catch/333 [ 47.968170] [ 47.969715] CPU: 4 UID: 0 PID: 333 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc3-next-20250624 #1 PREEMPT [ 47.969750] Tainted: [B]=BAD_PAGE, [N]=TEST [ 47.969761] Hardware name: Thundercomm Dragonboard 845c (DT) [ 47.969776] Call trace: [ 47.969784] show_stack+0x20/0x38 (C) [ 47.969805] dump_stack_lvl+0x8c/0xd0 [ 47.969828] print_report+0x118/0x608 [ 47.969850] kasan_report_invalid_free+0xc0/0xe8 [ 47.969872] check_slab_allocation+0xd4/0x108 [ 47.969891] __kasan_mempool_poison_object+0x78/0x150 [ 47.969913] mempool_free+0x28c/0x328 [ 47.969931] mempool_double_free_helper+0x150/0x2e8 [ 47.969949] mempool_kmalloc_double_free+0xc0/0x118 [ 47.969969] kunit_try_run_case+0x170/0x3f0 [ 47.969989] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 47.970011] kthread+0x328/0x630 [ 47.970026] ret_from_fork+0x10/0x20 [ 47.970045] [ 48.050749] Allocated by task 333: [ 48.054213] kasan_save_stack+0x3c/0x68 [ 48.058118] kasan_save_track+0x20/0x40 [ 48.062024] kasan_save_alloc_info+0x40/0x58 [ 48.066358] __kasan_mempool_unpoison_object+0x11c/0x180 [ 48.071744] remove_element+0x130/0x1f8 [ 48.075645] mempool_alloc_preallocated+0x58/0xc0 [ 48.080414] mempool_double_free_helper+0x94/0x2e8 [ 48.085272] mempool_kmalloc_double_free+0xc0/0x118 [ 48.090224] kunit_try_run_case+0x170/0x3f0 [ 48.094471] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 48.100042] kthread+0x328/0x630 [ 48.103324] ret_from_fork+0x10/0x20 [ 48.106957] [ 48.108486] Freed by task 333: [ 48.111591] kasan_save_stack+0x3c/0x68 [ 48.115495] kasan_save_track+0x20/0x40 [ 48.119398] kasan_save_free_info+0x4c/0x78 [ 48.123642] __kasan_mempool_poison_object+0xc0/0x150 [ 48.128775] mempool_free+0x28c/0x328 [ 48.132501] mempool_double_free_helper+0x100/0x2e8 [ 48.137454] mempool_kmalloc_double_free+0xc0/0x118 [ 48.142408] kunit_try_run_case+0x170/0x3f0 [ 48.146656] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 48.152224] kthread+0x328/0x630 [ 48.155505] ret_from_fork+0x10/0x20 [ 48.159138] [ 48.160670] The buggy address belongs to the object at ffff000080f19400 [ 48.160670] which belongs to the cache kmalloc-128 of size 128 [ 48.173330] The buggy address is located 0 bytes inside of [ 48.173330] 128-byte region [ffff000080f19400, ffff000080f19480) [ 48.185025] [ 48.186551] The buggy address belongs to the physical page: [ 48.192200] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x100f18 [ 48.200300] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 48.208050] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 48.215101] page_type: f5(slab) [ 48.218303] raw: 0bfffe0000000040 ffff000080002a00 dead000000000122 0000000000000000 [ 48.226141] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 48.233979] head: 0bfffe0000000040 ffff000080002a00 dead000000000122 0000000000000000 [ 48.241903] head: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 48.249825] head: 0bfffe0000000001 fffffdffc203c601 00000000ffffffff 00000000ffffffff [ 48.257747] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002 [ 48.265666] page dumped because: kasan: bad access detected [ 48.271315] [ 48.272847] Memory state around the buggy address: [ 48.277710] ffff000080f19300: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 48.285022] ffff000080f19380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 48.292335] >ffff000080f19400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 48.299645] ^ [ 48.302930] ffff000080f19480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 48.310241] ffff000080f19500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 48.317552] ================================================================== [ 48.328933] ================================================================== [ 48.341027] BUG: KASAN: double-free in mempool_double_free_helper+0x150/0x2e8 [ 48.348267] Free of addr ffff000095654000 by task kunit_try_catch/335 [ 48.354795] [ 48.356333] CPU: 6 UID: 0 PID: 335 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc3-next-20250624 #1 PREEMPT [ 48.356367] Tainted: [B]=BAD_PAGE, [N]=TEST [ 48.356376] Hardware name: Thundercomm Dragonboard 845c (DT) [ 48.356393] Call trace: [ 48.356401] show_stack+0x20/0x38 (C) [ 48.356422] dump_stack_lvl+0x8c/0xd0 [ 48.356444] print_report+0x118/0x608 [ 48.356462] kasan_report_invalid_free+0xc0/0xe8 [ 48.356484] __kasan_mempool_poison_object+0x14c/0x150 [ 48.356504] mempool_free+0x28c/0x328 [ 48.356522] mempool_double_free_helper+0x150/0x2e8 [ 48.356540] mempool_kmalloc_large_double_free+0xc0/0x118 [ 48.356559] kunit_try_run_case+0x170/0x3f0 [ 48.356579] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 48.356600] kthread+0x328/0x630 [ 48.356615] ret_from_fork+0x10/0x20 [ 48.356635] [ 48.433563] The buggy address belongs to the physical page: [ 48.439204] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x115654 [ 48.447313] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 48.455062] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 48.462110] page_type: f8(unknown) [ 48.465579] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 48.473413] raw: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000 [ 48.481256] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 48.489186] head: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000 [ 48.497117] head: 0bfffe0000000002 fffffdffc2559501 00000000ffffffff 00000000ffffffff [ 48.505047] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 48.512964] page dumped because: kasan: bad access detected [ 48.518604] [ 48.520130] Memory state around the buggy address: [ 48.524994] ffff000095653f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 48.532304] ffff000095653f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 48.539614] >ffff000095654000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 48.546929] ^ [ 48.550208] ffff000095654080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 48.557519] ffff000095654100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 48.564827] ==================================================================
[ 35.954475] ================================================================== [ 35.955081] BUG: KASAN: double-free in mempool_double_free_helper+0x150/0x2e8 [ 35.955482] Free of addr fff00000c77e6100 by task kunit_try_catch/246 [ 35.955725] [ 35.955800] CPU: 0 UID: 0 PID: 246 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc3-next-20250624 #1 PREEMPT [ 35.956017] Tainted: [B]=BAD_PAGE, [N]=TEST [ 35.956083] Hardware name: linux,dummy-virt (DT) [ 35.956164] Call trace: [ 35.956224] show_stack+0x20/0x38 (C) [ 35.956355] dump_stack_lvl+0x8c/0xd0 [ 35.956529] print_report+0x118/0x608 [ 35.956669] kasan_report_invalid_free+0xc0/0xe8 [ 35.957329] check_slab_allocation+0xd4/0x108 [ 35.957632] __kasan_mempool_poison_object+0x78/0x150 [ 35.957834] mempool_free+0x28c/0x328 [ 35.958071] mempool_double_free_helper+0x150/0x2e8 [ 35.958222] mempool_kmalloc_double_free+0xc0/0x118 [ 35.958363] kunit_try_run_case+0x170/0x3f0 [ 35.958484] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 35.958619] kthread+0x328/0x630 [ 35.958733] ret_from_fork+0x10/0x20 [ 35.958851] [ 35.958913] Allocated by task 246: [ 35.959006] kasan_save_stack+0x3c/0x68 [ 35.959462] kasan_save_track+0x20/0x40 [ 35.959598] kasan_save_alloc_info+0x40/0x58 [ 35.959752] __kasan_mempool_unpoison_object+0x11c/0x180 [ 35.959869] remove_element+0x130/0x1f8 [ 35.959979] mempool_alloc_preallocated+0x58/0xc0 [ 35.960098] mempool_double_free_helper+0x94/0x2e8 [ 35.960234] mempool_kmalloc_double_free+0xc0/0x118 [ 35.960344] kunit_try_run_case+0x170/0x3f0 [ 35.960453] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 35.960803] kthread+0x328/0x630 [ 35.960977] ret_from_fork+0x10/0x20 [ 35.961360] [ 35.961676] Freed by task 246: [ 35.961850] kasan_save_stack+0x3c/0x68 [ 35.962218] kasan_save_track+0x20/0x40 [ 35.962338] kasan_save_free_info+0x4c/0x78 [ 35.962443] __kasan_mempool_poison_object+0xc0/0x150 [ 35.963397] mempool_free+0x28c/0x328 [ 35.963490] mempool_double_free_helper+0x100/0x2e8 [ 35.963605] mempool_kmalloc_double_free+0xc0/0x118 [ 35.963708] kunit_try_run_case+0x170/0x3f0 [ 35.963826] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 35.964064] kthread+0x328/0x630 [ 35.964163] ret_from_fork+0x10/0x20 [ 35.964600] [ 35.964655] The buggy address belongs to the object at fff00000c77e6100 [ 35.964655] which belongs to the cache kmalloc-128 of size 128 [ 35.964816] The buggy address is located 0 bytes inside of [ 35.964816] 128-byte region [fff00000c77e6100, fff00000c77e6180) [ 35.965065] [ 35.965425] The buggy address belongs to the physical page: [ 35.965770] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1077e6 [ 35.966117] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 35.966244] page_type: f5(slab) [ 35.966343] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 35.966869] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 35.967244] page dumped because: kasan: bad access detected [ 35.967363] [ 35.967516] Memory state around the buggy address: [ 35.967603] fff00000c77e6000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 35.967835] fff00000c77e6080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 35.968137] >fff00000c77e6100: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 35.968292] ^ [ 35.968371] fff00000c77e6180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 35.968485] fff00000c77e6200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 35.968592] ================================================================== [ 36.007749] ================================================================== [ 36.007954] BUG: KASAN: double-free in mempool_double_free_helper+0x150/0x2e8 [ 36.008086] Free of addr fff00000c781c000 by task kunit_try_catch/250 [ 36.008186] [ 36.008306] CPU: 0 UID: 0 PID: 250 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc3-next-20250624 #1 PREEMPT [ 36.008744] Tainted: [B]=BAD_PAGE, [N]=TEST [ 36.008937] Hardware name: linux,dummy-virt (DT) [ 36.009039] Call trace: [ 36.009133] show_stack+0x20/0x38 (C) [ 36.009263] dump_stack_lvl+0x8c/0xd0 [ 36.009378] print_report+0x118/0x608 [ 36.009493] kasan_report_invalid_free+0xc0/0xe8 [ 36.009622] __kasan_mempool_poison_pages+0xe0/0xe8 [ 36.009933] mempool_free+0x24c/0x328 [ 36.010073] mempool_double_free_helper+0x150/0x2e8 [ 36.010215] mempool_page_alloc_double_free+0xbc/0x118 [ 36.010416] kunit_try_run_case+0x170/0x3f0 [ 36.010564] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 36.010710] kthread+0x328/0x630 [ 36.010897] ret_from_fork+0x10/0x20 [ 36.011128] [ 36.011172] The buggy address belongs to the physical page: [ 36.011236] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10781c [ 36.011346] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 36.011430] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 36.011544] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 36.011600] page dumped because: kasan: bad access detected [ 36.011639] [ 36.011661] Memory state around the buggy address: [ 36.011702] fff00000c781bf00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 36.011756] fff00000c781bf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 36.011809] >fff00000c781c000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 36.011856] ^ [ 36.011970] fff00000c781c080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 36.012097] fff00000c781c100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 36.012641] ================================================================== [ 35.980351] ================================================================== [ 35.980482] BUG: KASAN: double-free in mempool_double_free_helper+0x150/0x2e8 [ 35.980614] Free of addr fff00000c781c000 by task kunit_try_catch/248 [ 35.980739] [ 35.980783] CPU: 0 UID: 0 PID: 248 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc3-next-20250624 #1 PREEMPT [ 35.980909] Tainted: [B]=BAD_PAGE, [N]=TEST [ 35.980980] Hardware name: linux,dummy-virt (DT) [ 35.981065] Call trace: [ 35.981118] show_stack+0x20/0x38 (C) [ 35.981345] dump_stack_lvl+0x8c/0xd0 [ 35.981566] print_report+0x118/0x608 [ 35.981701] kasan_report_invalid_free+0xc0/0xe8 [ 35.981826] __kasan_mempool_poison_object+0x14c/0x150 [ 35.981975] mempool_free+0x28c/0x328 [ 35.982086] mempool_double_free_helper+0x150/0x2e8 [ 35.982216] mempool_kmalloc_large_double_free+0xc0/0x118 [ 35.982338] kunit_try_run_case+0x170/0x3f0 [ 35.982463] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 35.982593] kthread+0x328/0x630 [ 35.982695] ret_from_fork+0x10/0x20 [ 35.982833] [ 35.982915] The buggy address belongs to the physical page: [ 35.982999] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10781c [ 35.983154] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 35.983282] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 35.983429] page_type: f8(unknown) [ 35.983622] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 35.983859] raw: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000 [ 35.984112] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 35.984285] head: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000 [ 35.984415] head: 0bfffe0000000002 ffffc1ffc31e0701 00000000ffffffff 00000000ffffffff [ 35.985726] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 35.986284] page dumped because: kasan: bad access detected [ 35.986375] [ 35.986462] Memory state around the buggy address: [ 35.986649] fff00000c781bf00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 35.986758] fff00000c781bf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 35.986921] >fff00000c781c000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 35.987029] ^ [ 35.987174] fff00000c781c080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 35.987386] fff00000c781c100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 35.987545] ==================================================================
[ 31.234973] ================================================================== [ 31.235961] BUG: KASAN: double-free in mempool_double_free_helper+0x184/0x370 [ 31.236449] Free of addr ffff888102d80000 by task kunit_try_catch/267 [ 31.236963] [ 31.237157] CPU: 0 UID: 0 PID: 267 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc3-next-20250624 #1 PREEMPT(voluntary) [ 31.237274] Tainted: [B]=BAD_PAGE, [N]=TEST [ 31.237309] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 31.237359] Call Trace: [ 31.237391] <TASK> [ 31.237429] dump_stack_lvl+0x73/0xb0 [ 31.237507] print_report+0xd1/0x650 [ 31.237829] ? __virt_addr_valid+0x1db/0x2d0 [ 31.237912] ? kasan_addr_to_slab+0x11/0xa0 [ 31.237967] ? mempool_double_free_helper+0x184/0x370 [ 31.238026] kasan_report_invalid_free+0x10a/0x130 [ 31.238239] ? mempool_double_free_helper+0x184/0x370 [ 31.238310] ? mempool_double_free_helper+0x184/0x370 [ 31.238366] __kasan_mempool_poison_object+0x1b3/0x1d0 [ 31.238432] mempool_free+0x2ec/0x380 [ 31.238509] mempool_double_free_helper+0x184/0x370 [ 31.238596] ? __pfx_mempool_double_free_helper+0x10/0x10 [ 31.238685] ? __kasan_check_write+0x18/0x20 [ 31.238720] ? __pfx_sched_clock_cpu+0x10/0x10 [ 31.238752] ? finish_task_switch.isra.0+0x153/0x700 [ 31.238790] mempool_kmalloc_large_double_free+0xed/0x140 [ 31.238823] ? __pfx_mempool_kmalloc_large_double_free+0x10/0x10 [ 31.238858] ? __pfx_mempool_kmalloc+0x10/0x10 [ 31.238888] ? __pfx_mempool_kfree+0x10/0x10 [ 31.238920] ? __pfx_read_tsc+0x10/0x10 [ 31.238949] ? ktime_get_ts64+0x86/0x230 [ 31.238983] kunit_try_run_case+0x1a5/0x480 [ 31.239019] ? __pfx_kunit_try_run_case+0x10/0x10 [ 31.239064] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 31.239153] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 31.239209] ? __kthread_parkme+0x82/0x180 [ 31.239258] ? preempt_count_sub+0x50/0x80 [ 31.239308] ? __pfx_kunit_try_run_case+0x10/0x10 [ 31.239363] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 31.239418] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 31.239452] kthread+0x337/0x6f0 [ 31.239480] ? trace_preempt_on+0x20/0xc0 [ 31.239514] ? __pfx_kthread+0x10/0x10 [ 31.239565] ? _raw_spin_unlock_irq+0x47/0x80 [ 31.239598] ? calculate_sigpending+0x7b/0xa0 [ 31.239647] ? __pfx_kthread+0x10/0x10 [ 31.239696] ret_from_fork+0x116/0x1d0 [ 31.239723] ? __pfx_kthread+0x10/0x10 [ 31.239752] ret_from_fork_asm+0x1a/0x30 [ 31.239795] </TASK> [ 31.239810] [ 31.256474] The buggy address belongs to the physical page: [ 31.257035] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102d80 [ 31.258351] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 31.258925] flags: 0x200000000000040(head|node=0|zone=2) [ 31.259378] page_type: f8(unknown) [ 31.259790] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 31.260618] raw: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000 [ 31.261731] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 31.262482] head: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000 [ 31.263326] head: 0200000000000002 ffffea00040b6001 00000000ffffffff 00000000ffffffff [ 31.263768] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 31.264488] page dumped because: kasan: bad access detected [ 31.265002] [ 31.265575] Memory state around the buggy address: [ 31.265865] ffff888102d7ff00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 31.266442] ffff888102d7ff80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 31.266941] >ffff888102d80000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 31.267438] ^ [ 31.267985] ffff888102d80080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 31.268745] ffff888102d80100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 31.269589] ================================================================== [ 31.276757] ================================================================== [ 31.277722] BUG: KASAN: double-free in mempool_double_free_helper+0x184/0x370 [ 31.279079] Free of addr ffff888103be0000 by task kunit_try_catch/269 [ 31.279576] [ 31.280226] CPU: 1 UID: 0 PID: 269 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc3-next-20250624 #1 PREEMPT(voluntary) [ 31.280354] Tainted: [B]=BAD_PAGE, [N]=TEST [ 31.280399] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 31.280469] Call Trace: [ 31.280505] <TASK> [ 31.280560] dump_stack_lvl+0x73/0xb0 [ 31.280611] print_report+0xd1/0x650 [ 31.280644] ? __virt_addr_valid+0x1db/0x2d0 [ 31.280679] ? kasan_addr_to_slab+0x11/0xa0 [ 31.280709] ? mempool_double_free_helper+0x184/0x370 [ 31.280753] kasan_report_invalid_free+0x10a/0x130 [ 31.280786] ? mempool_double_free_helper+0x184/0x370 [ 31.280820] ? mempool_double_free_helper+0x184/0x370 [ 31.280851] __kasan_mempool_poison_pages+0x115/0x130 [ 31.280882] mempool_free+0x290/0x380 [ 31.280915] mempool_double_free_helper+0x184/0x370 [ 31.280945] ? __pfx_mempool_double_free_helper+0x10/0x10 [ 31.280977] ? __kasan_check_write+0x18/0x20 [ 31.281008] ? __pfx_sched_clock_cpu+0x10/0x10 [ 31.281037] ? finish_task_switch.isra.0+0x153/0x700 [ 31.281092] mempool_page_alloc_double_free+0xe8/0x140 [ 31.281148] ? __pfx_mempool_page_alloc_double_free+0x10/0x10 [ 31.281193] ? __pfx_mempool_alloc_pages+0x10/0x10 [ 31.281224] ? __pfx_mempool_free_pages+0x10/0x10 [ 31.281257] ? __pfx_read_tsc+0x10/0x10 [ 31.281289] ? ktime_get_ts64+0x86/0x230 [ 31.281323] kunit_try_run_case+0x1a5/0x480 [ 31.281357] ? __pfx_kunit_try_run_case+0x10/0x10 [ 31.281386] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 31.281419] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 31.281451] ? __kthread_parkme+0x82/0x180 [ 31.281477] ? preempt_count_sub+0x50/0x80 [ 31.281507] ? __pfx_kunit_try_run_case+0x10/0x10 [ 31.281556] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 31.281590] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 31.281622] kthread+0x337/0x6f0 [ 31.281647] ? trace_preempt_on+0x20/0xc0 [ 31.281678] ? __pfx_kthread+0x10/0x10 [ 31.281706] ? _raw_spin_unlock_irq+0x47/0x80 [ 31.281750] ? calculate_sigpending+0x7b/0xa0 [ 31.281781] ? __pfx_kthread+0x10/0x10 [ 31.281809] ret_from_fork+0x116/0x1d0 [ 31.281834] ? __pfx_kthread+0x10/0x10 [ 31.281861] ret_from_fork_asm+0x1a/0x30 [ 31.281900] </TASK> [ 31.281914] [ 31.303513] The buggy address belongs to the physical page: [ 31.303982] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103be0 [ 31.304816] flags: 0x200000000000000(node=0|zone=2) [ 31.305209] raw: 0200000000000000 0000000000000000 dead000000000122 0000000000000000 [ 31.305757] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 31.307068] page dumped because: kasan: bad access detected [ 31.307525] [ 31.307754] Memory state around the buggy address: [ 31.308609] ffff888103bdff00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 31.309288] ffff888103bdff80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 31.309485] >ffff888103be0000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 31.309786] ^ [ 31.310271] ffff888103be0080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 31.311606] ffff888103be0100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 31.312441] ==================================================================