Date
July 18, 2025, 11:11 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 17.394974] ================================================================== [ 17.395639] BUG: KASAN: use-after-free in mempool_uaf_helper+0x314/0x340 [ 17.395722] Read of size 1 at addr fff00000c7818000 by task kunit_try_catch/229 [ 17.395773] [ 17.395808] CPU: 0 UID: 0 PID: 229 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 17.396204] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.396349] Hardware name: linux,dummy-virt (DT) [ 17.396405] Call trace: [ 17.396441] show_stack+0x20/0x38 (C) [ 17.396762] dump_stack_lvl+0x8c/0xd0 [ 17.396827] print_report+0x118/0x5d0 [ 17.396929] kasan_report+0xdc/0x128 [ 17.396980] __asan_report_load1_noabort+0x20/0x30 [ 17.397032] mempool_uaf_helper+0x314/0x340 [ 17.397281] mempool_kmalloc_large_uaf+0xc4/0x120 [ 17.397491] kunit_try_run_case+0x170/0x3f0 [ 17.397616] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.397732] kthread+0x328/0x630 [ 17.397786] ret_from_fork+0x10/0x20 [ 17.398088] [ 17.398137] The buggy address belongs to the physical page: [ 17.398232] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107818 [ 17.398325] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 17.398689] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 17.398789] page_type: f8(unknown) [ 17.398881] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 17.399184] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 17.399444] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 17.399617] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 17.399731] head: 0bfffe0000000002 ffffc1ffc31e0601 00000000ffffffff 00000000ffffffff [ 17.399901] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 17.399983] page dumped because: kasan: bad access detected [ 17.400071] [ 17.400358] Memory state around the buggy address: [ 17.400431] fff00000c7817f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.400500] fff00000c7817f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.400662] >fff00000c7818000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 17.400716] ^ [ 17.401054] fff00000c7818080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 17.401143] fff00000c7818100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 17.401289] ================================================================== [ 17.447631] ================================================================== [ 17.447959] BUG: KASAN: use-after-free in mempool_uaf_helper+0x314/0x340 [ 17.448156] Read of size 1 at addr fff00000c781c000 by task kunit_try_catch/233 [ 17.448252] [ 17.448402] CPU: 0 UID: 0 PID: 233 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 17.448512] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.448573] Hardware name: linux,dummy-virt (DT) [ 17.448607] Call trace: [ 17.448632] show_stack+0x20/0x38 (C) [ 17.448934] dump_stack_lvl+0x8c/0xd0 [ 17.449174] print_report+0x118/0x5d0 [ 17.449235] kasan_report+0xdc/0x128 [ 17.449279] __asan_report_load1_noabort+0x20/0x30 [ 17.449445] mempool_uaf_helper+0x314/0x340 [ 17.449604] mempool_page_alloc_uaf+0xc0/0x118 [ 17.449877] kunit_try_run_case+0x170/0x3f0 [ 17.450222] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.450413] kthread+0x328/0x630 [ 17.450502] ret_from_fork+0x10/0x20 [ 17.450758] [ 17.450794] The buggy address belongs to the physical page: [ 17.451660] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10781c [ 17.451824] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 17.452172] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 17.452824] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 17.452971] page dumped because: kasan: bad access detected [ 17.453086] [ 17.453313] Memory state around the buggy address: [ 17.453533] fff00000c781bf00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 17.453761] fff00000c781bf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 17.453830] >fff00000c781c000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 17.453901] ^ [ 17.454011] fff00000c781c080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 17.454210] fff00000c781c100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 17.454454] ==================================================================
[ 13.770772] ================================================================== [ 13.771223] BUG: KASAN: use-after-free in mempool_uaf_helper+0x392/0x400 [ 13.771517] Read of size 1 at addr ffff888103a6c000 by task kunit_try_catch/252 [ 13.771771] [ 13.771869] CPU: 0 UID: 0 PID: 252 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 13.771917] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.771930] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.771952] Call Trace: [ 13.771963] <TASK> [ 13.771979] dump_stack_lvl+0x73/0xb0 [ 13.772008] print_report+0xd1/0x610 [ 13.772030] ? __virt_addr_valid+0x1db/0x2d0 [ 13.772052] ? mempool_uaf_helper+0x392/0x400 [ 13.772073] ? kasan_addr_to_slab+0x11/0xa0 [ 13.772092] ? mempool_uaf_helper+0x392/0x400 [ 13.772113] kasan_report+0x141/0x180 [ 13.772134] ? mempool_uaf_helper+0x392/0x400 [ 13.772160] __asan_report_load1_noabort+0x18/0x20 [ 13.772183] mempool_uaf_helper+0x392/0x400 [ 13.772205] ? __pfx_mempool_uaf_helper+0x10/0x10 [ 13.772227] ? __kasan_check_write+0x18/0x20 [ 13.772246] ? __pfx_sched_clock_cpu+0x10/0x10 [ 13.772268] ? finish_task_switch.isra.0+0x153/0x700 [ 13.772318] mempool_page_alloc_uaf+0xed/0x140 [ 13.772700] ? __pfx_mempool_page_alloc_uaf+0x10/0x10 [ 13.772731] ? __pfx_mempool_alloc_pages+0x10/0x10 [ 13.772758] ? __pfx_mempool_free_pages+0x10/0x10 [ 13.772785] ? __pfx_read_tsc+0x10/0x10 [ 13.772817] ? ktime_get_ts64+0x86/0x230 [ 13.772841] kunit_try_run_case+0x1a5/0x480 [ 13.772867] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.772890] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.772915] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.772940] ? __kthread_parkme+0x82/0x180 [ 13.772967] ? preempt_count_sub+0x50/0x80 [ 13.772990] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.773014] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.773038] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.773065] kthread+0x337/0x6f0 [ 13.773083] ? trace_preempt_on+0x20/0xc0 [ 13.773108] ? __pfx_kthread+0x10/0x10 [ 13.773127] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.773149] ? calculate_sigpending+0x7b/0xa0 [ 13.773173] ? __pfx_kthread+0x10/0x10 [ 13.773194] ret_from_fork+0x116/0x1d0 [ 13.773213] ? __pfx_kthread+0x10/0x10 [ 13.773233] ret_from_fork_asm+0x1a/0x30 [ 13.773264] </TASK> [ 13.773276] [ 13.795990] The buggy address belongs to the physical page: [ 13.796713] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103a6c [ 13.797408] flags: 0x200000000000000(node=0|zone=2) [ 13.797949] raw: 0200000000000000 0000000000000000 dead000000000122 0000000000000000 [ 13.798471] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 13.799257] page dumped because: kasan: bad access detected [ 13.799726] [ 13.799799] Memory state around the buggy address: [ 13.799957] ffff888103a6bf00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.800189] ffff888103a6bf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.800428] >ffff888103a6c000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.800756] ^ [ 13.800960] ffff888103a6c080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.801250] ffff888103a6c100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.801651] ================================================================== [ 13.698404] ================================================================== [ 13.698970] BUG: KASAN: use-after-free in mempool_uaf_helper+0x392/0x400 [ 13.699579] Read of size 1 at addr ffff888103a6c000 by task kunit_try_catch/248 [ 13.700244] [ 13.700403] CPU: 0 UID: 0 PID: 248 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 13.700452] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.700593] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.700616] Call Trace: [ 13.700629] <TASK> [ 13.700645] dump_stack_lvl+0x73/0xb0 [ 13.700676] print_report+0xd1/0x610 [ 13.700699] ? __virt_addr_valid+0x1db/0x2d0 [ 13.700721] ? mempool_uaf_helper+0x392/0x400 [ 13.700744] ? kasan_addr_to_slab+0x11/0xa0 [ 13.700764] ? mempool_uaf_helper+0x392/0x400 [ 13.700786] kasan_report+0x141/0x180 [ 13.700808] ? mempool_uaf_helper+0x392/0x400 [ 13.700835] __asan_report_load1_noabort+0x18/0x20 [ 13.700861] mempool_uaf_helper+0x392/0x400 [ 13.700885] ? __pfx_mempool_uaf_helper+0x10/0x10 [ 13.700910] ? __pfx_sched_clock_cpu+0x10/0x10 [ 13.700933] ? finish_task_switch.isra.0+0x153/0x700 [ 13.700968] mempool_kmalloc_large_uaf+0xef/0x140 [ 13.700992] ? __pfx_mempool_kmalloc_large_uaf+0x10/0x10 [ 13.701165] ? __kasan_check_write+0x18/0x20 [ 13.701189] ? __pfx_mempool_kmalloc+0x10/0x10 [ 13.701213] ? __pfx_mempool_kfree+0x10/0x10 [ 13.701237] ? __pfx_read_tsc+0x10/0x10 [ 13.701259] ? ktime_get_ts64+0x86/0x230 [ 13.701281] ? sysvec_apic_timer_interrupt+0x50/0x90 [ 13.701323] kunit_try_run_case+0x1a5/0x480 [ 13.701348] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.701372] ? queued_spin_lock_slowpath+0x116/0xb40 [ 13.701398] ? __kthread_parkme+0x82/0x180 [ 13.701418] ? preempt_count_sub+0x50/0x80 [ 13.701441] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.701465] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.701489] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.701513] kthread+0x337/0x6f0 [ 13.701533] ? trace_preempt_on+0x20/0xc0 [ 13.701555] ? __pfx_kthread+0x10/0x10 [ 13.701575] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.701597] ? calculate_sigpending+0x7b/0xa0 [ 13.701621] ? __pfx_kthread+0x10/0x10 [ 13.701643] ret_from_fork+0x116/0x1d0 [ 13.701662] ? __pfx_kthread+0x10/0x10 [ 13.701682] ret_from_fork_asm+0x1a/0x30 [ 13.701713] </TASK> [ 13.701725] [ 13.714606] The buggy address belongs to the physical page: [ 13.715176] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103a6c [ 13.715753] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 13.716071] flags: 0x200000000000040(head|node=0|zone=2) [ 13.716350] page_type: f8(unknown) [ 13.716531] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 13.717324] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 13.717787] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 13.718289] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 13.718747] head: 0200000000000002 ffffea00040e9b01 00000000ffffffff 00000000ffffffff [ 13.719241] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 13.719798] page dumped because: kasan: bad access detected [ 13.720190] [ 13.720275] Memory state around the buggy address: [ 13.720499] ffff888103a6bf00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.721225] ffff888103a6bf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.721593] >ffff888103a6c000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.722063] ^ [ 13.722328] ffff888103a6c080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.722776] ffff888103a6c100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.723428] ==================================================================