Date
July 11, 2025, 11:09 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.781430] ================================================================== [ 18.781503] BUG: KASAN: use-after-free in mempool_uaf_helper+0x314/0x340 [ 18.781574] Read of size 1 at addr fff00000c7864000 by task kunit_try_catch/234 [ 18.781624] [ 18.781663] CPU: 1 UID: 0 PID: 234 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 18.781749] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.781775] Hardware name: linux,dummy-virt (DT) [ 18.781809] Call trace: [ 18.781833] show_stack+0x20/0x38 (C) [ 18.781903] dump_stack_lvl+0x8c/0xd0 [ 18.781954] print_report+0x118/0x608 [ 18.782001] kasan_report+0xdc/0x128 [ 18.782047] __asan_report_load1_noabort+0x20/0x30 [ 18.782096] mempool_uaf_helper+0x314/0x340 [ 18.782143] mempool_page_alloc_uaf+0xc0/0x118 [ 18.782190] kunit_try_run_case+0x170/0x3f0 [ 18.782239] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.782291] kthread+0x328/0x630 [ 18.782333] ret_from_fork+0x10/0x20 [ 18.782381] [ 18.782402] The buggy address belongs to the physical page: [ 18.782437] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107864 [ 18.782491] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.782560] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 18.782610] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 18.782652] page dumped because: kasan: bad access detected [ 18.782684] [ 18.782701] Memory state around the buggy address: [ 18.782830] fff00000c7863f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 18.782895] fff00000c7863f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 18.782938] >fff00000c7864000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 18.782976] ^ [ 18.783005] fff00000c7864080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 18.783046] fff00000c7864100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 18.783444] ================================================================== [ 18.706162] ================================================================== [ 18.706851] BUG: KASAN: use-after-free in mempool_uaf_helper+0x314/0x340 [ 18.707186] Read of size 1 at addr fff00000c659c000 by task kunit_try_catch/230 [ 18.707528] [ 18.707567] CPU: 1 UID: 0 PID: 230 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 18.707830] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.708190] Hardware name: linux,dummy-virt (DT) [ 18.708237] Call trace: [ 18.708742] show_stack+0x20/0x38 (C) [ 18.708976] dump_stack_lvl+0x8c/0xd0 [ 18.709267] print_report+0x118/0x608 [ 18.709413] kasan_report+0xdc/0x128 [ 18.709783] __asan_report_load1_noabort+0x20/0x30 [ 18.710081] mempool_uaf_helper+0x314/0x340 [ 18.710466] mempool_kmalloc_large_uaf+0xc4/0x120 [ 18.710777] kunit_try_run_case+0x170/0x3f0 [ 18.711101] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.711201] kthread+0x328/0x630 [ 18.711247] ret_from_fork+0x10/0x20 [ 18.711296] [ 18.711837] The buggy address belongs to the physical page: [ 18.711898] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10659c [ 18.711955] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 18.712296] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 18.712479] page_type: f8(unknown) [ 18.712539] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 18.712944] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 18.713159] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 18.713210] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 18.713723] head: 0bfffe0000000002 ffffc1ffc3196701 00000000ffffffff 00000000ffffffff [ 18.713785] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 18.713826] page dumped because: kasan: bad access detected [ 18.713864] [ 18.713881] Memory state around the buggy address: [ 18.714359] fff00000c659bf00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 18.714790] fff00000c659bf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 18.714900] >fff00000c659c000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 18.714954] ^ [ 18.715358] fff00000c659c080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 18.715468] fff00000c659c100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 18.715630] ==================================================================
[ 13.983613] ================================================================== [ 13.984507] BUG: KASAN: use-after-free in mempool_uaf_helper+0x392/0x400 [ 13.985214] Read of size 1 at addr ffff888102a58000 by task kunit_try_catch/250 [ 13.986090] [ 13.986334] CPU: 1 UID: 0 PID: 250 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 13.986383] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.986395] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.986416] Call Trace: [ 13.986430] <TASK> [ 13.986446] dump_stack_lvl+0x73/0xb0 [ 13.986477] print_report+0xd1/0x650 [ 13.986508] ? __virt_addr_valid+0x1db/0x2d0 [ 13.986532] ? mempool_uaf_helper+0x392/0x400 [ 13.986554] ? kasan_addr_to_slab+0x11/0xa0 [ 13.986575] ? mempool_uaf_helper+0x392/0x400 [ 13.986598] kasan_report+0x141/0x180 [ 13.986619] ? mempool_uaf_helper+0x392/0x400 [ 13.986647] __asan_report_load1_noabort+0x18/0x20 [ 13.986672] mempool_uaf_helper+0x392/0x400 [ 13.986696] ? __pfx_mempool_uaf_helper+0x10/0x10 [ 13.986720] ? __kasan_check_write+0x18/0x20 [ 13.986740] ? __pfx_sched_clock_cpu+0x10/0x10 [ 13.986773] ? irqentry_exit+0x2a/0x60 [ 13.986795] ? sysvec_apic_timer_interrupt+0x50/0x90 [ 13.986824] mempool_page_alloc_uaf+0xed/0x140 [ 13.986958] ? __pfx_mempool_page_alloc_uaf+0x10/0x10 [ 13.986989] ? __pfx_mempool_alloc_pages+0x10/0x10 [ 13.987034] ? __pfx_mempool_free_pages+0x10/0x10 [ 13.987060] ? __pfx_mempool_page_alloc_uaf+0x10/0x10 [ 13.987087] ? __pfx_mempool_page_alloc_uaf+0x10/0x10 [ 13.987113] kunit_try_run_case+0x1a5/0x480 [ 13.987138] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.987160] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.987184] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.987208] ? __kthread_parkme+0x82/0x180 [ 13.987228] ? preempt_count_sub+0x50/0x80 [ 13.987252] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.987277] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.987300] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.987326] kthread+0x337/0x6f0 [ 13.987344] ? trace_preempt_on+0x20/0xc0 [ 13.987368] ? __pfx_kthread+0x10/0x10 [ 13.987388] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.987409] ? calculate_sigpending+0x7b/0xa0 [ 13.987434] ? __pfx_kthread+0x10/0x10 [ 13.987456] ret_from_fork+0x116/0x1d0 [ 13.987474] ? __pfx_kthread+0x10/0x10 [ 13.987494] ret_from_fork_asm+0x1a/0x30 [ 13.987527] </TASK> [ 13.987536] [ 14.000968] The buggy address belongs to the physical page: [ 14.001513] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102a58 [ 14.001975] flags: 0x200000000000000(node=0|zone=2) [ 14.002356] raw: 0200000000000000 0000000000000000 dead000000000122 0000000000000000 [ 14.002684] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 14.003197] page dumped because: kasan: bad access detected [ 14.003521] [ 14.003609] Memory state around the buggy address: [ 14.003965] ffff888102a57f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 14.004453] ffff888102a57f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 14.004741] >ffff888102a58000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 14.005389] ^ [ 14.005516] ffff888102a58080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 14.005984] ffff888102a58100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 14.006403] ================================================================== [ 13.910638] ================================================================== [ 13.911409] BUG: KASAN: use-after-free in mempool_uaf_helper+0x392/0x400 [ 13.911717] Read of size 1 at addr ffff888102a54000 by task kunit_try_catch/246 [ 13.912161] [ 13.912303] CPU: 1 UID: 0 PID: 246 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 13.912348] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.912361] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.912381] Call Trace: [ 13.912394] <TASK> [ 13.912411] dump_stack_lvl+0x73/0xb0 [ 13.912463] print_report+0xd1/0x650 [ 13.912486] ? __virt_addr_valid+0x1db/0x2d0 [ 13.912509] ? mempool_uaf_helper+0x392/0x400 [ 13.912531] ? kasan_addr_to_slab+0x11/0xa0 [ 13.912551] ? mempool_uaf_helper+0x392/0x400 [ 13.912574] kasan_report+0x141/0x180 [ 13.912595] ? mempool_uaf_helper+0x392/0x400 [ 13.912641] __asan_report_load1_noabort+0x18/0x20 [ 13.912666] mempool_uaf_helper+0x392/0x400 [ 13.912689] ? __pfx_mempool_uaf_helper+0x10/0x10 [ 13.912711] ? update_load_avg+0x1be/0x21b0 [ 13.912735] ? update_load_avg+0x1be/0x21b0 [ 13.912765] ? update_curr+0x80/0x810 [ 13.912787] ? finish_task_switch.isra.0+0x153/0x700 [ 13.912814] mempool_kmalloc_large_uaf+0xef/0x140 [ 13.912837] ? __pfx_mempool_kmalloc_large_uaf+0x10/0x10 [ 13.912865] ? __pfx_mempool_kmalloc+0x10/0x10 [ 13.912889] ? __pfx_mempool_kfree+0x10/0x10 [ 13.912913] ? __pfx_read_tsc+0x10/0x10 [ 13.912947] ? ktime_get_ts64+0x86/0x230 [ 13.912972] kunit_try_run_case+0x1a5/0x480 [ 13.912997] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.913020] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.913044] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.913114] ? __kthread_parkme+0x82/0x180 [ 13.913136] ? preempt_count_sub+0x50/0x80 [ 13.913160] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.913184] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.913209] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.913234] kthread+0x337/0x6f0 [ 13.913253] ? trace_preempt_on+0x20/0xc0 [ 13.913276] ? __pfx_kthread+0x10/0x10 [ 13.913296] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.913317] ? calculate_sigpending+0x7b/0xa0 [ 13.913342] ? __pfx_kthread+0x10/0x10 [ 13.913364] ret_from_fork+0x116/0x1d0 [ 13.913382] ? __pfx_kthread+0x10/0x10 [ 13.913403] ret_from_fork_asm+0x1a/0x30 [ 13.913435] </TASK> [ 13.913446] [ 13.922456] The buggy address belongs to the physical page: [ 13.922773] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102a54 [ 13.923174] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 13.923407] flags: 0x200000000000040(head|node=0|zone=2) [ 13.923674] page_type: f8(unknown) [ 13.923850] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 13.924193] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 13.924426] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 13.925113] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 13.925433] head: 0200000000000002 ffffea00040a9501 00000000ffffffff 00000000ffffffff [ 13.925748] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 13.926134] page dumped because: kasan: bad access detected [ 13.926344] [ 13.926446] Memory state around the buggy address: [ 13.926704] ffff888102a53f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.927283] ffff888102a53f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.927616] >ffff888102a54000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.928001] ^ [ 13.928168] ffff888102a54080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.928508] ffff888102a54100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.928870] ==================================================================