Date
June 3, 2025, 7:38 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 20.455523] ================================================================== [ 20.455589] BUG: KASAN: use-after-free in mempool_uaf_helper+0x314/0x340 [ 20.455777] Read of size 1 at addr fff00000c79a8000 by task kunit_try_catch/233 [ 20.455830] [ 20.455867] CPU: 1 UID: 0 PID: 233 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250603 #1 PREEMPT [ 20.456046] Tainted: [B]=BAD_PAGE, [N]=TEST [ 20.456206] Hardware name: linux,dummy-virt (DT) [ 20.456286] Call trace: [ 20.456352] show_stack+0x20/0x38 (C) [ 20.456901] dump_stack_lvl+0x8c/0xd0 [ 20.456962] print_report+0x118/0x608 [ 20.457009] kasan_report+0xdc/0x128 [ 20.457056] __asan_report_load1_noabort+0x20/0x30 [ 20.457109] mempool_uaf_helper+0x314/0x340 [ 20.457155] mempool_page_alloc_uaf+0xc0/0x118 [ 20.457204] kunit_try_run_case+0x170/0x3f0 [ 20.457256] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.457308] kthread+0x328/0x630 [ 20.457352] ret_from_fork+0x10/0x20 [ 20.457403] [ 20.457437] The buggy address belongs to the physical page: [ 20.457587] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1079a8 [ 20.457735] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 20.457813] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 20.457865] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 20.457915] page dumped because: kasan: bad access detected [ 20.457953] [ 20.457971] Memory state around the buggy address: [ 20.458004] fff00000c79a7f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 20.458055] fff00000c79a7f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 20.458097] >fff00000c79a8000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 20.458135] ^ [ 20.458162] fff00000c79a8080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 20.458211] fff00000c79a8100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 20.458250] ================================================================== [ 20.421241] ================================================================== [ 20.421300] BUG: KASAN: use-after-free in mempool_uaf_helper+0x314/0x340 [ 20.421355] Read of size 1 at addr fff00000c79a8000 by task kunit_try_catch/229 [ 20.421405] [ 20.421469] CPU: 1 UID: 0 PID: 229 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250603 #1 PREEMPT [ 20.421556] Tainted: [B]=BAD_PAGE, [N]=TEST [ 20.421583] Hardware name: linux,dummy-virt (DT) [ 20.421614] Call trace: [ 20.421636] show_stack+0x20/0x38 (C) [ 20.421694] dump_stack_lvl+0x8c/0xd0 [ 20.421751] print_report+0x118/0x608 [ 20.421799] kasan_report+0xdc/0x128 [ 20.421844] __asan_report_load1_noabort+0x20/0x30 [ 20.421892] mempool_uaf_helper+0x314/0x340 [ 20.421938] mempool_kmalloc_large_uaf+0xc4/0x120 [ 20.421986] kunit_try_run_case+0x170/0x3f0 [ 20.422042] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.422096] kthread+0x328/0x630 [ 20.422137] ret_from_fork+0x10/0x20 [ 20.422185] [ 20.422204] The buggy address belongs to the physical page: [ 20.422244] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1079a8 [ 20.422296] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 20.422341] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 20.422393] page_type: f8(unknown) [ 20.423051] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 20.423141] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 20.423198] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 20.423252] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 20.423307] head: 0bfffe0000000002 ffffc1ffc31e6a01 00000000ffffffff 00000000ffffffff [ 20.423384] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 20.423441] page dumped because: kasan: bad access detected [ 20.423482] [ 20.423596] Memory state around the buggy address: [ 20.423636] fff00000c79a7f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 20.423709] fff00000c79a7f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 20.423752] >fff00000c79a8000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 20.423789] ^ [ 20.423815] fff00000c79a8080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 20.423857] fff00000c79a8100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 20.423895] ==================================================================
[ 16.369927] ================================================================== [ 16.370502] BUG: KASAN: use-after-free in mempool_uaf_helper+0x392/0x400 [ 16.371730] Read of size 1 at addr ffff888102ad0000 by task kunit_try_catch/246 [ 16.373264] [ 16.373437] CPU: 0 UID: 0 PID: 246 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250603 #1 PREEMPT(voluntary) [ 16.373534] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.373558] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 16.373599] Call Trace: [ 16.373622] <TASK> [ 16.373660] dump_stack_lvl+0x73/0xb0 [ 16.373730] print_report+0xd1/0x650 [ 16.373776] ? __virt_addr_valid+0x1db/0x2d0 [ 16.373822] ? mempool_uaf_helper+0x392/0x400 [ 16.373947] ? kasan_addr_to_slab+0x11/0xa0 [ 16.374010] ? mempool_uaf_helper+0x392/0x400 [ 16.374052] kasan_report+0x141/0x180 [ 16.374094] ? mempool_uaf_helper+0x392/0x400 [ 16.374137] __asan_report_load1_noabort+0x18/0x20 [ 16.374175] mempool_uaf_helper+0x392/0x400 [ 16.374225] ? __pfx_mempool_uaf_helper+0x10/0x10 [ 16.374266] ? __kasan_check_write+0x18/0x20 [ 16.374301] ? __pfx_sched_clock_cpu+0x10/0x10 [ 16.374344] ? finish_task_switch.isra.0+0x153/0x700 [ 16.374390] mempool_kmalloc_large_uaf+0xef/0x140 [ 16.374436] ? __pfx_mempool_kmalloc_large_uaf+0x10/0x10 [ 16.374506] ? __pfx_mempool_kmalloc+0x10/0x10 [ 16.374552] ? __pfx_mempool_kfree+0x10/0x10 [ 16.374591] ? __pfx_read_tsc+0x10/0x10 [ 16.374667] ? ktime_get_ts64+0x86/0x230 [ 16.374707] kunit_try_run_case+0x1a5/0x480 [ 16.374756] ? __pfx_kunit_try_run_case+0x10/0x10 [ 16.374790] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 16.374845] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 16.374892] ? __kthread_parkme+0x82/0x180 [ 16.374936] ? preempt_count_sub+0x50/0x80 [ 16.374981] ? __pfx_kunit_try_run_case+0x10/0x10 [ 16.375021] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 16.375065] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 16.375111] kthread+0x337/0x6f0 [ 16.375153] ? trace_preempt_on+0x20/0xc0 [ 16.375200] ? __pfx_kthread+0x10/0x10 [ 16.375249] ? _raw_spin_unlock_irq+0x47/0x80 [ 16.375296] ? calculate_sigpending+0x7b/0xa0 [ 16.375373] ? __pfx_kthread+0x10/0x10 [ 16.375422] ret_from_fork+0x116/0x1d0 [ 16.375484] ? __pfx_kthread+0x10/0x10 [ 16.375518] ret_from_fork_asm+0x1a/0x30 [ 16.375574] </TASK> [ 16.375590] [ 16.392742] The buggy address belongs to the physical page: [ 16.393640] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102ad0 [ 16.394249] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 16.394854] flags: 0x200000000000040(head|node=0|zone=2) [ 16.396026] page_type: f8(unknown) [ 16.396702] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 16.397084] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 16.397788] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 16.398384] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 16.399172] head: 0200000000000002 ffffea00040ab401 00000000ffffffff 00000000ffffffff [ 16.399647] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 16.400846] page dumped because: kasan: bad access detected [ 16.401067] [ 16.401596] Memory state around the buggy address: [ 16.402197] ffff888102acff00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 16.402938] ffff888102acff80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 16.403478] >ffff888102ad0000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 16.404154] ^ [ 16.404348] ffff888102ad0080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 16.405582] ffff888102ad0100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 16.406182] ================================================================== [ 16.478290] ================================================================== [ 16.478739] BUG: KASAN: use-after-free in mempool_uaf_helper+0x392/0x400 [ 16.478944] Read of size 1 at addr ffff888102ad4000 by task kunit_try_catch/250 [ 16.479934] [ 16.480043] CPU: 0 UID: 0 PID: 250 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250603 #1 PREEMPT(voluntary) [ 16.480109] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.480125] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 16.480153] Call Trace: [ 16.480172] <TASK> [ 16.480199] dump_stack_lvl+0x73/0xb0 [ 16.480241] print_report+0xd1/0x650 [ 16.480268] ? __virt_addr_valid+0x1db/0x2d0 [ 16.480296] ? mempool_uaf_helper+0x392/0x400 [ 16.480322] ? kasan_addr_to_slab+0x11/0xa0 [ 16.480345] ? mempool_uaf_helper+0x392/0x400 [ 16.480370] kasan_report+0x141/0x180 [ 16.480547] ? mempool_uaf_helper+0x392/0x400 [ 16.480587] __asan_report_load1_noabort+0x18/0x20 [ 16.480612] mempool_uaf_helper+0x392/0x400 [ 16.480639] ? __pfx_mempool_uaf_helper+0x10/0x10 [ 16.480667] ? __kasan_check_write+0x18/0x20 [ 16.480808] ? __pfx_sched_clock_cpu+0x10/0x10 [ 16.480845] ? irqentry_exit+0x2a/0x60 [ 16.480872] ? sysvec_apic_timer_interrupt+0x50/0x90 [ 16.480905] mempool_page_alloc_uaf+0xed/0x140 [ 16.480933] ? __pfx_mempool_page_alloc_uaf+0x10/0x10 [ 16.480966] ? __pfx_mempool_alloc_pages+0x10/0x10 [ 16.480994] ? __pfx_mempool_free_pages+0x10/0x10 [ 16.481020] ? __pfx_mempool_page_alloc_uaf+0x10/0x10 [ 16.481053] ? __pfx_mempool_page_alloc_uaf+0x10/0x10 [ 16.481122] kunit_try_run_case+0x1a5/0x480 [ 16.481154] ? __pfx_kunit_try_run_case+0x10/0x10 [ 16.481178] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 16.481237] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 16.481270] ? __kthread_parkme+0x82/0x180 [ 16.481315] ? preempt_count_sub+0x50/0x80 [ 16.481350] ? __pfx_kunit_try_run_case+0x10/0x10 [ 16.481376] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 16.481413] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 16.481447] kthread+0x337/0x6f0 [ 16.481500] ? trace_preempt_on+0x20/0xc0 [ 16.481534] ? __pfx_kthread+0x10/0x10 [ 16.481563] ? _raw_spin_unlock_irq+0x47/0x80 [ 16.481597] ? calculate_sigpending+0x7b/0xa0 [ 16.481632] ? __pfx_kthread+0x10/0x10 [ 16.481661] ret_from_fork+0x116/0x1d0 [ 16.482160] ? __pfx_kthread+0x10/0x10 [ 16.482250] ret_from_fork_asm+0x1a/0x30 [ 16.482299] </TASK> [ 16.482315] [ 16.494680] The buggy address belongs to the physical page: [ 16.495064] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102ad4 [ 16.495262] flags: 0x200000000000000(node=0|zone=2) [ 16.495741] raw: 0200000000000000 0000000000000000 dead000000000122 0000000000000000 [ 16.496511] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 16.497012] page dumped because: kasan: bad access detected [ 16.497263] [ 16.497558] Memory state around the buggy address: [ 16.497837] ffff888102ad3f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 16.498308] ffff888102ad3f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 16.498497] >ffff888102ad4000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 16.498939] ^ [ 16.499205] ffff888102ad4080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 16.499690] ffff888102ad4100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 16.500542] ==================================================================