Date
July 3, 2025, 3:13 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 17.511004] ================================================================== [ 17.511086] BUG: KASAN: slab-out-of-bounds in mempool_oob_right_helper+0x2ac/0x2f0 [ 17.511158] Read of size 1 at addr fff00000c78032bb by task kunit_try_catch/228 [ 17.511208] [ 17.511253] CPU: 0 UID: 0 PID: 228 Comm: kunit_try_catch Tainted: G B N 6.15.5-rc1 #1 PREEMPT [ 17.511347] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.511374] Hardware name: linux,dummy-virt (DT) [ 17.511417] Call trace: [ 17.511439] show_stack+0x20/0x38 (C) [ 17.511504] dump_stack_lvl+0x8c/0xd0 [ 17.511556] print_report+0x118/0x608 [ 17.511611] kasan_report+0xdc/0x128 [ 17.512052] __asan_report_load1_noabort+0x20/0x30 [ 17.512115] mempool_oob_right_helper+0x2ac/0x2f0 [ 17.512165] mempool_slab_oob_right+0xc0/0x118 [ 17.512211] kunit_try_run_case+0x170/0x3f0 [ 17.512261] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.512313] kthread+0x328/0x630 [ 17.512357] ret_from_fork+0x10/0x20 [ 17.512407] [ 17.512424] Allocated by task 228: [ 17.512454] kasan_save_stack+0x3c/0x68 [ 17.512509] kasan_save_track+0x20/0x40 [ 17.512632] kasan_save_alloc_info+0x40/0x58 [ 17.512671] __kasan_mempool_unpoison_object+0xbc/0x180 [ 17.512719] remove_element+0x16c/0x1f8 [ 17.512870] mempool_alloc_preallocated+0x58/0xc0 [ 17.512938] mempool_oob_right_helper+0x98/0x2f0 [ 17.512998] mempool_slab_oob_right+0xc0/0x118 [ 17.513033] kunit_try_run_case+0x170/0x3f0 [ 17.513078] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.513121] kthread+0x328/0x630 [ 17.513155] ret_from_fork+0x10/0x20 [ 17.513496] [ 17.513521] The buggy address belongs to the object at fff00000c7803240 [ 17.513521] which belongs to the cache test_cache of size 123 [ 17.513580] The buggy address is located 0 bytes to the right of [ 17.513580] allocated 123-byte region [fff00000c7803240, fff00000c78032bb) [ 17.513642] [ 17.513663] The buggy address belongs to the physical page: [ 17.513694] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107803 [ 17.513746] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 17.513795] page_type: f5(slab) [ 17.514175] raw: 0bfffe0000000000 fff00000c5d10a00 dead000000000122 0000000000000000 [ 17.514234] raw: 0000000000000000 0000000080150015 00000000f5000000 0000000000000000 [ 17.514278] page dumped because: kasan: bad access detected [ 17.514309] [ 17.514326] Memory state around the buggy address: [ 17.514359] fff00000c7803180: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 17.514556] fff00000c7803200: fc fc fc fc fc fc fc fc 00 00 00 00 00 00 00 00 [ 17.514602] >fff00000c7803280: 00 00 00 00 00 00 00 03 fc fc fc fc fc fc fc fc [ 17.514650] ^ [ 17.514804] fff00000c7803300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.514879] fff00000c7803380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.514927] ================================================================== [ 17.473773] ================================================================== [ 17.473847] BUG: KASAN: slab-out-of-bounds in mempool_oob_right_helper+0x2ac/0x2f0 [ 17.473924] Read of size 1 at addr fff00000c638e973 by task kunit_try_catch/224 [ 17.473992] [ 17.474036] CPU: 0 UID: 0 PID: 224 Comm: kunit_try_catch Tainted: G B N 6.15.5-rc1 #1 PREEMPT [ 17.474124] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.474159] Hardware name: linux,dummy-virt (DT) [ 17.474583] Call trace: [ 17.474610] show_stack+0x20/0x38 (C) [ 17.474668] dump_stack_lvl+0x8c/0xd0 [ 17.474719] print_report+0x118/0x608 [ 17.474765] kasan_report+0xdc/0x128 [ 17.474808] __asan_report_load1_noabort+0x20/0x30 [ 17.474857] mempool_oob_right_helper+0x2ac/0x2f0 [ 17.474907] mempool_kmalloc_oob_right+0xc4/0x120 [ 17.474973] kunit_try_run_case+0x170/0x3f0 [ 17.475026] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.475077] kthread+0x328/0x630 [ 17.475124] ret_from_fork+0x10/0x20 [ 17.475172] [ 17.475191] Allocated by task 224: [ 17.475222] kasan_save_stack+0x3c/0x68 [ 17.475261] kasan_save_track+0x20/0x40 [ 17.475298] kasan_save_alloc_info+0x40/0x58 [ 17.475336] __kasan_mempool_unpoison_object+0x11c/0x180 [ 17.475378] remove_element+0x130/0x1f8 [ 17.475418] mempool_alloc_preallocated+0x58/0xc0 [ 17.475459] mempool_oob_right_helper+0x98/0x2f0 [ 17.475499] mempool_kmalloc_oob_right+0xc4/0x120 [ 17.475540] kunit_try_run_case+0x170/0x3f0 [ 17.475580] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.475625] kthread+0x328/0x630 [ 17.475659] ret_from_fork+0x10/0x20 [ 17.475694] [ 17.475715] The buggy address belongs to the object at fff00000c638e900 [ 17.475715] which belongs to the cache kmalloc-128 of size 128 [ 17.475772] The buggy address is located 0 bytes to the right of [ 17.475772] allocated 115-byte region [fff00000c638e900, fff00000c638e973) [ 17.475835] [ 17.475857] The buggy address belongs to the physical page: [ 17.475890] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10638e [ 17.475955] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 17.476008] page_type: f5(slab) [ 17.476050] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 17.476100] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 17.476140] page dumped because: kasan: bad access detected [ 17.476172] [ 17.476191] Memory state around the buggy address: [ 17.476223] fff00000c638e800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 17.476266] fff00000c638e880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.476310] >fff00000c638e900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fc [ 17.476348] ^ [ 17.476388] fff00000c638e980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.476431] fff00000c638ea00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fc [ 17.476470] ================================================================== [ 17.484139] ================================================================== [ 17.484221] BUG: KASAN: slab-out-of-bounds in mempool_oob_right_helper+0x2ac/0x2f0 [ 17.484279] Read of size 1 at addr fff00000c791e001 by task kunit_try_catch/226 [ 17.484339] [ 17.484372] CPU: 0 UID: 0 PID: 226 Comm: kunit_try_catch Tainted: G B N 6.15.5-rc1 #1 PREEMPT [ 17.484465] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.484492] Hardware name: linux,dummy-virt (DT) [ 17.484523] Call trace: [ 17.484550] show_stack+0x20/0x38 (C) [ 17.484599] dump_stack_lvl+0x8c/0xd0 [ 17.484650] print_report+0x118/0x608 [ 17.484697] kasan_report+0xdc/0x128 [ 17.484738] __asan_report_load1_noabort+0x20/0x30 [ 17.484797] mempool_oob_right_helper+0x2ac/0x2f0 [ 17.484851] mempool_kmalloc_large_oob_right+0xc4/0x120 [ 17.484909] kunit_try_run_case+0x170/0x3f0 [ 17.485396] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.485661] kthread+0x328/0x630 [ 17.485731] ret_from_fork+0x10/0x20 [ 17.485922] [ 17.485992] The buggy address belongs to the physical page: [ 17.486063] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10791c [ 17.486137] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 17.486229] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 17.486291] page_type: f8(unknown) [ 17.486339] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 17.486395] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 17.486451] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 17.486748] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 17.486907] head: 0bfffe0000000002 ffffc1ffc31e4701 00000000ffffffff 00000000ffffffff [ 17.487204] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 17.487535] page dumped because: kasan: bad access detected [ 17.487573] [ 17.487767] Memory state around the buggy address: [ 17.487803] fff00000c791df00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.488125] fff00000c791df80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.488183] >fff00000c791e000: 01 fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 17.488419] ^ [ 17.488453] fff00000c791e080: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 17.488512] fff00000c791e100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 17.488550] ==================================================================
[ 12.605608] ================================================================== [ 12.606091] BUG: KASAN: slab-out-of-bounds in mempool_oob_right_helper+0x318/0x380 [ 12.606651] Read of size 1 at addr ffff888102a3a001 by task kunit_try_catch/242 [ 12.606970] [ 12.607204] CPU: 1 UID: 0 PID: 242 Comm: kunit_try_catch Tainted: G B N 6.15.5-rc1 #1 PREEMPT(voluntary) [ 12.607266] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.607352] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.607378] Call Trace: [ 12.607392] <TASK> [ 12.607469] dump_stack_lvl+0x73/0xb0 [ 12.607503] print_report+0xd1/0x650 [ 12.607527] ? __virt_addr_valid+0x1db/0x2d0 [ 12.607551] ? mempool_oob_right_helper+0x318/0x380 [ 12.607575] ? kasan_addr_to_slab+0x11/0xa0 [ 12.607597] ? mempool_oob_right_helper+0x318/0x380 [ 12.607622] kasan_report+0x141/0x180 [ 12.607644] ? mempool_oob_right_helper+0x318/0x380 [ 12.607674] __asan_report_load1_noabort+0x18/0x20 [ 12.607695] mempool_oob_right_helper+0x318/0x380 [ 12.607720] ? __pfx_mempool_oob_right_helper+0x10/0x10 [ 12.607746] ? dequeue_entities+0x852/0x1740 [ 12.607772] ? irqentry_exit+0x2a/0x60 [ 12.607791] ? sysvec_apic_timer_interrupt+0x50/0x90 [ 12.607820] mempool_kmalloc_large_oob_right+0xf2/0x150 [ 12.607845] ? __pfx_mempool_kmalloc_large_oob_right+0x10/0x10 [ 12.607873] ? __pfx_mempool_kmalloc+0x10/0x10 [ 12.607896] ? __pfx_mempool_kfree+0x10/0x10 [ 12.607918] ? __pfx_mempool_kmalloc_large_oob_right+0x10/0x10 [ 12.607945] ? __pfx_mempool_kmalloc_large_oob_right+0x10/0x10 [ 12.607973] kunit_try_run_case+0x1a5/0x480 [ 12.607999] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.608022] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.608047] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.608071] ? __kthread_parkme+0x82/0x180 [ 12.608095] ? preempt_count_sub+0x50/0x80 [ 12.608120] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.608144] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.608167] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.608191] kthread+0x337/0x6f0 [ 12.608208] ? trace_preempt_on+0x20/0xc0 [ 12.608244] ? __pfx_kthread+0x10/0x10 [ 12.608262] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.608294] ? calculate_sigpending+0x7b/0xa0 [ 12.608317] ? __pfx_kthread+0x10/0x10 [ 12.608336] ret_from_fork+0x41/0x80 [ 12.608359] ? __pfx_kthread+0x10/0x10 [ 12.608377] ret_from_fork_asm+0x1a/0x30 [ 12.608409] </TASK> [ 12.608421] [ 12.620398] The buggy address belongs to the physical page: [ 12.620966] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102a38 [ 12.621510] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 12.621959] flags: 0x200000000000040(head|node=0|zone=2) [ 12.622228] page_type: f8(unknown) [ 12.622563] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 12.623004] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 12.623627] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 12.623978] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 12.624578] head: 0200000000000002 ffffea00040a8e01 00000000ffffffff 00000000ffffffff [ 12.624950] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 12.625261] page dumped because: kasan: bad access detected [ 12.625612] [ 12.626319] Memory state around the buggy address: [ 12.626493] ffff888102a39f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.626717] ffff888102a39f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.626934] >ffff888102a3a000: 01 fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 12.627148] ^ [ 12.627279] ffff888102a3a080: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 12.627582] ffff888102a3a100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 12.627797] ================================================================== [ 12.577979] ================================================================== [ 12.578450] BUG: KASAN: slab-out-of-bounds in mempool_oob_right_helper+0x318/0x380 [ 12.579026] Read of size 1 at addr ffff888103151273 by task kunit_try_catch/240 [ 12.579322] [ 12.579443] CPU: 0 UID: 0 PID: 240 Comm: kunit_try_catch Tainted: G B N 6.15.5-rc1 #1 PREEMPT(voluntary) [ 12.579496] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.579509] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.579533] Call Trace: [ 12.579546] <TASK> [ 12.579567] dump_stack_lvl+0x73/0xb0 [ 12.579598] print_report+0xd1/0x650 [ 12.579622] ? __virt_addr_valid+0x1db/0x2d0 [ 12.579647] ? mempool_oob_right_helper+0x318/0x380 [ 12.579672] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.579695] ? mempool_oob_right_helper+0x318/0x380 [ 12.579720] kasan_report+0x141/0x180 [ 12.579743] ? mempool_oob_right_helper+0x318/0x380 [ 12.579771] __asan_report_load1_noabort+0x18/0x20 [ 12.579793] mempool_oob_right_helper+0x318/0x380 [ 12.579818] ? __pfx_mempool_oob_right_helper+0x10/0x10 [ 12.579842] ? dequeue_entities+0x852/0x1740 [ 12.579868] ? irqentry_exit+0x2a/0x60 [ 12.579888] ? sysvec_apic_timer_interrupt+0x50/0x90 [ 12.579916] mempool_kmalloc_oob_right+0xf2/0x150 [ 12.579941] ? __pfx_mempool_kmalloc_oob_right+0x10/0x10 [ 12.579969] ? __pfx_mempool_kmalloc+0x10/0x10 [ 12.579992] ? __pfx_mempool_kfree+0x10/0x10 [ 12.580013] ? __pfx_mempool_kmalloc_oob_right+0x10/0x10 [ 12.580039] ? __pfx_mempool_kmalloc_oob_right+0x10/0x10 [ 12.580066] kunit_try_run_case+0x1a5/0x480 [ 12.580092] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.580115] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.580140] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.580164] ? __kthread_parkme+0x82/0x180 [ 12.580188] ? preempt_count_sub+0x50/0x80 [ 12.580215] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.580251] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.580276] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.580300] kthread+0x337/0x6f0 [ 12.580317] ? trace_preempt_on+0x20/0xc0 [ 12.580343] ? __pfx_kthread+0x10/0x10 [ 12.580361] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.580384] ? calculate_sigpending+0x7b/0xa0 [ 12.580407] ? __pfx_kthread+0x10/0x10 [ 12.580426] ret_from_fork+0x41/0x80 [ 12.580448] ? __pfx_kthread+0x10/0x10 [ 12.580467] ret_from_fork_asm+0x1a/0x30 [ 12.580499] </TASK> [ 12.580511] [ 12.590784] Allocated by task 240: [ 12.590952] kasan_save_stack+0x45/0x70 [ 12.591174] kasan_save_track+0x18/0x40 [ 12.591393] kasan_save_alloc_info+0x3b/0x50 [ 12.591617] __kasan_mempool_unpoison_object+0x1a9/0x200 [ 12.591897] remove_element+0x11e/0x190 [ 12.592062] mempool_alloc_preallocated+0x4d/0x90 [ 12.592303] mempool_oob_right_helper+0x8a/0x380 [ 12.592624] mempool_kmalloc_oob_right+0xf2/0x150 [ 12.592792] kunit_try_run_case+0x1a5/0x480 [ 12.593005] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.593224] kthread+0x337/0x6f0 [ 12.593434] ret_from_fork+0x41/0x80 [ 12.593594] ret_from_fork_asm+0x1a/0x30 [ 12.593820] [ 12.593895] The buggy address belongs to the object at ffff888103151200 [ 12.593895] which belongs to the cache kmalloc-128 of size 128 [ 12.594336] The buggy address is located 0 bytes to the right of [ 12.594336] allocated 115-byte region [ffff888103151200, ffff888103151273) [ 12.594948] [ 12.595024] The buggy address belongs to the physical page: [ 12.595510] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103151 [ 12.595897] flags: 0x200000000000000(node=0|zone=2) [ 12.596123] page_type: f5(slab) [ 12.596345] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 12.597142] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 12.597415] page dumped because: kasan: bad access detected [ 12.598022] [ 12.598138] Memory state around the buggy address: [ 12.598571] ffff888103151100: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.599122] ffff888103151180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.599478] >ffff888103151200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fc [ 12.599805] ^ [ 12.600069] ffff888103151280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.600354] ffff888103151300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fc [ 12.600710] ================================================================== [ 12.633424] ================================================================== [ 12.634817] BUG: KASAN: slab-out-of-bounds in mempool_oob_right_helper+0x318/0x380 [ 12.635510] Read of size 1 at addr ffff8881031542bb by task kunit_try_catch/244 [ 12.635868] [ 12.636011] CPU: 0 UID: 0 PID: 244 Comm: kunit_try_catch Tainted: G B N 6.15.5-rc1 #1 PREEMPT(voluntary) [ 12.636065] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.636079] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.636104] Call Trace: [ 12.636117] <TASK> [ 12.636139] dump_stack_lvl+0x73/0xb0 [ 12.636169] print_report+0xd1/0x650 [ 12.636193] ? __virt_addr_valid+0x1db/0x2d0 [ 12.636218] ? mempool_oob_right_helper+0x318/0x380 [ 12.636253] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.636276] ? mempool_oob_right_helper+0x318/0x380 [ 12.636301] kasan_report+0x141/0x180 [ 12.636324] ? mempool_oob_right_helper+0x318/0x380 [ 12.636354] __asan_report_load1_noabort+0x18/0x20 [ 12.636374] mempool_oob_right_helper+0x318/0x380 [ 12.636400] ? __pfx_mempool_oob_right_helper+0x10/0x10 [ 12.636428] ? finish_task_switch.isra.0+0x153/0x700 [ 12.636458] mempool_slab_oob_right+0xed/0x140 [ 12.636479] ? __pfx_mempool_slab_oob_right+0x10/0x10 [ 12.636499] ? dequeue_task_fair+0x166/0x4e0 [ 12.636522] ? __pfx_mempool_alloc_slab+0x10/0x10 [ 12.636546] ? __pfx_mempool_free_slab+0x10/0x10 [ 12.636569] ? __pfx_read_tsc+0x10/0x10 [ 12.636590] ? ktime_get_ts64+0x86/0x230 [ 12.636616] kunit_try_run_case+0x1a5/0x480 [ 12.636643] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.636666] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.636692] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.636716] ? __kthread_parkme+0x82/0x180 [ 12.636739] ? preempt_count_sub+0x50/0x80 [ 12.636763] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.636787] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.636810] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.636834] kthread+0x337/0x6f0 [ 12.636851] ? trace_preempt_on+0x20/0xc0 [ 12.636876] ? __pfx_kthread+0x10/0x10 [ 12.636895] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.636917] ? calculate_sigpending+0x7b/0xa0 [ 12.636940] ? __pfx_kthread+0x10/0x10 [ 12.636959] ret_from_fork+0x41/0x80 [ 12.636980] ? __pfx_kthread+0x10/0x10 [ 12.636998] ret_from_fork_asm+0x1a/0x30 [ 12.637030] </TASK> [ 12.637043] [ 12.649960] Allocated by task 244: [ 12.650371] kasan_save_stack+0x45/0x70 [ 12.650809] kasan_save_track+0x18/0x40 [ 12.651073] kasan_save_alloc_info+0x3b/0x50 [ 12.651446] __kasan_mempool_unpoison_object+0x1bb/0x200 [ 12.651954] remove_element+0x11e/0x190 [ 12.652358] mempool_alloc_preallocated+0x4d/0x90 [ 12.652804] mempool_oob_right_helper+0x8a/0x380 [ 12.653043] mempool_slab_oob_right+0xed/0x140 [ 12.653254] kunit_try_run_case+0x1a5/0x480 [ 12.653492] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.654022] kthread+0x337/0x6f0 [ 12.654299] ret_from_fork+0x41/0x80 [ 12.654626] ret_from_fork_asm+0x1a/0x30 [ 12.655008] [ 12.655104] The buggy address belongs to the object at ffff888103154240 [ 12.655104] which belongs to the cache test_cache of size 123 [ 12.655957] The buggy address is located 0 bytes to the right of [ 12.655957] allocated 123-byte region [ffff888103154240, ffff8881031542bb) [ 12.656940] [ 12.657043] The buggy address belongs to the physical page: [ 12.657289] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103154 [ 12.657968] flags: 0x200000000000000(node=0|zone=2) [ 12.658431] page_type: f5(slab) [ 12.658600] raw: 0200000000000000 ffff88810111e640 dead000000000122 0000000000000000 [ 12.659080] raw: 0000000000000000 0000000080150015 00000000f5000000 0000000000000000 [ 12.659600] page dumped because: kasan: bad access detected [ 12.660179] [ 12.660427] Memory state around the buggy address: [ 12.661027] ffff888103154180: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.661410] ffff888103154200: fc fc fc fc fc fc fc fc 00 00 00 00 00 00 00 00 [ 12.661772] >ffff888103154280: 00 00 00 00 00 00 00 03 fc fc fc fc fc fc fc fc [ 12.662069] ^ [ 12.662608] ffff888103154300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.663456] ffff888103154380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.663898] ==================================================================