Date
July 10, 2025, 11:10 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.044711] ================================================================== [ 18.045272] BUG: KASAN: use-after-free in mempool_uaf_helper+0x314/0x340 [ 18.045397] Read of size 1 at addr fff00000c780c000 by task kunit_try_catch/233 [ 18.045451] [ 18.045532] CPU: 0 UID: 0 PID: 233 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 18.046068] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.046154] Hardware name: linux,dummy-virt (DT) [ 18.046190] Call trace: [ 18.046221] show_stack+0x20/0x38 (C) [ 18.046618] dump_stack_lvl+0x8c/0xd0 [ 18.046776] print_report+0x118/0x608 [ 18.046879] kasan_report+0xdc/0x128 [ 18.047243] __asan_report_load1_noabort+0x20/0x30 [ 18.047307] mempool_uaf_helper+0x314/0x340 [ 18.047618] mempool_page_alloc_uaf+0xc0/0x118 [ 18.047954] kunit_try_run_case+0x170/0x3f0 [ 18.048364] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.048506] kthread+0x328/0x630 [ 18.048851] ret_from_fork+0x10/0x20 [ 18.048986] [ 18.049054] The buggy address belongs to the physical page: [ 18.049136] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10780c [ 18.049581] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.050049] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 18.050201] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 18.050291] page dumped because: kasan: bad access detected [ 18.050344] [ 18.050423] Memory state around the buggy address: [ 18.050599] fff00000c780bf00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 18.050816] fff00000c780bf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 18.050906] >fff00000c780c000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 18.050984] ^ [ 18.051296] fff00000c780c080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 18.051490] fff00000c780c100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 18.051537] ================================================================== [ 17.999999] ================================================================== [ 18.000106] BUG: KASAN: use-after-free in mempool_uaf_helper+0x314/0x340 [ 18.000183] Read of size 1 at addr fff00000c780c000 by task kunit_try_catch/229 [ 18.000251] [ 18.000314] CPU: 0 UID: 0 PID: 229 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 18.000417] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.000444] Hardware name: linux,dummy-virt (DT) [ 18.000493] Call trace: [ 18.000516] show_stack+0x20/0x38 (C) [ 18.000586] dump_stack_lvl+0x8c/0xd0 [ 18.000636] print_report+0x118/0x608 [ 18.000684] kasan_report+0xdc/0x128 [ 18.000906] __asan_report_load1_noabort+0x20/0x30 [ 18.001010] mempool_uaf_helper+0x314/0x340 [ 18.001096] mempool_kmalloc_large_uaf+0xc4/0x120 [ 18.001169] kunit_try_run_case+0x170/0x3f0 [ 18.001220] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.001358] kthread+0x328/0x630 [ 18.001504] ret_from_fork+0x10/0x20 [ 18.001602] [ 18.001642] The buggy address belongs to the physical page: [ 18.001678] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10780c [ 18.001733] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 18.001868] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 18.001972] page_type: f8(unknown) [ 18.002050] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 18.002134] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 18.002186] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 18.002243] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 18.002289] head: 0bfffe0000000002 ffffc1ffc31e0301 00000000ffffffff 00000000ffffffff [ 18.002616] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 18.002707] page dumped because: kasan: bad access detected [ 18.002774] [ 18.002854] Memory state around the buggy address: [ 18.002912] fff00000c780bf00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 18.003006] fff00000c780bf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 18.003116] >fff00000c780c000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 18.003153] ^ [ 18.003198] fff00000c780c080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 18.003502] fff00000c780c100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 18.003582] ==================================================================
[ 14.235558] ================================================================== [ 14.237052] BUG: KASAN: use-after-free in mempool_uaf_helper+0x392/0x400 [ 14.238142] Read of size 1 at addr ffff8881039f4000 by task kunit_try_catch/246 [ 14.239266] [ 14.239584] CPU: 0 UID: 0 PID: 246 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 14.239633] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.239655] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.239677] Call Trace: [ 14.239689] <TASK> [ 14.239705] dump_stack_lvl+0x73/0xb0 [ 14.239737] print_report+0xd1/0x650 [ 14.239758] ? __virt_addr_valid+0x1db/0x2d0 [ 14.239786] ? mempool_uaf_helper+0x392/0x400 [ 14.239808] ? kasan_addr_to_slab+0x11/0xa0 [ 14.239828] ? mempool_uaf_helper+0x392/0x400 [ 14.239850] kasan_report+0x141/0x180 [ 14.239871] ? mempool_uaf_helper+0x392/0x400 [ 14.239897] __asan_report_load1_noabort+0x18/0x20 [ 14.240023] mempool_uaf_helper+0x392/0x400 [ 14.240048] ? __pfx_mempool_uaf_helper+0x10/0x10 [ 14.240074] ? __pfx_sched_clock_cpu+0x10/0x10 [ 14.240096] ? irqentry_exit+0x2a/0x60 [ 14.240119] ? sysvec_apic_timer_interrupt+0x50/0x90 [ 14.240146] mempool_kmalloc_large_uaf+0xef/0x140 [ 14.240169] ? __pfx_mempool_kmalloc_large_uaf+0x10/0x10 [ 14.240204] ? __pfx_mempool_kmalloc+0x10/0x10 [ 14.240228] ? __pfx_mempool_kfree+0x10/0x10 [ 14.240253] ? __pfx_mempool_kmalloc_large_uaf+0x10/0x10 [ 14.240279] ? __pfx_mempool_kmalloc_large_uaf+0x10/0x10 [ 14.240305] kunit_try_run_case+0x1a5/0x480 [ 14.240330] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.240387] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 14.240412] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 14.240436] ? __kthread_parkme+0x82/0x180 [ 14.240457] ? preempt_count_sub+0x50/0x80 [ 14.240481] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.240505] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.240529] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.240564] kthread+0x337/0x6f0 [ 14.240583] ? trace_preempt_on+0x20/0xc0 [ 14.240606] ? __pfx_kthread+0x10/0x10 [ 14.240626] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.240649] ? calculate_sigpending+0x7b/0xa0 [ 14.240672] ? __pfx_kthread+0x10/0x10 [ 14.240693] ret_from_fork+0x116/0x1d0 [ 14.240712] ? __pfx_kthread+0x10/0x10 [ 14.240732] ret_from_fork_asm+0x1a/0x30 [ 14.240763] </TASK> [ 14.240773] [ 14.256985] The buggy address belongs to the physical page: [ 14.257271] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1039f4 [ 14.258114] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 14.258629] flags: 0x200000000000040(head|node=0|zone=2) [ 14.258872] page_type: f8(unknown) [ 14.259035] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 14.259344] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 14.259584] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 14.260090] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 14.260372] head: 0200000000000002 ffffea00040e7d01 00000000ffffffff 00000000ffffffff [ 14.260749] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 14.261046] page dumped because: kasan: bad access detected [ 14.261299] [ 14.261401] Memory state around the buggy address: [ 14.261662] ffff8881039f3f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 14.261938] ffff8881039f3f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 14.262255] >ffff8881039f4000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 14.262594] ^ [ 14.262732] ffff8881039f4080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 14.263050] ffff8881039f4100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 14.263338] ================================================================== [ 14.304126] ================================================================== [ 14.305379] BUG: KASAN: use-after-free in mempool_uaf_helper+0x392/0x400 [ 14.305930] Read of size 1 at addr ffff8881039f4000 by task kunit_try_catch/251 [ 14.306160] [ 14.306249] CPU: 0 UID: 0 PID: 251 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 14.306293] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.306304] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.306324] Call Trace: [ 14.306339] <TASK> [ 14.306377] dump_stack_lvl+0x73/0xb0 [ 14.306411] print_report+0xd1/0x650 [ 14.306433] ? __virt_addr_valid+0x1db/0x2d0 [ 14.306458] ? mempool_uaf_helper+0x392/0x400 [ 14.306480] ? kasan_addr_to_slab+0x11/0xa0 [ 14.306500] ? mempool_uaf_helper+0x392/0x400 [ 14.306523] kasan_report+0x141/0x180 [ 14.306544] ? mempool_uaf_helper+0x392/0x400 [ 14.306572] __asan_report_load1_noabort+0x18/0x20 [ 14.306597] mempool_uaf_helper+0x392/0x400 [ 14.306619] ? __pfx_mempool_uaf_helper+0x10/0x10 [ 14.306642] ? update_load_avg+0x1be/0x21b0 [ 14.306666] ? dequeue_entities+0x27e/0x1740 [ 14.306692] ? finish_task_switch.isra.0+0x153/0x700 [ 14.306718] mempool_page_alloc_uaf+0xed/0x140 [ 14.306742] ? __pfx_mempool_page_alloc_uaf+0x10/0x10 [ 14.306769] ? __pfx_mempool_alloc_pages+0x10/0x10 [ 14.306795] ? __pfx_mempool_free_pages+0x10/0x10 [ 14.306822] ? __pfx_read_tsc+0x10/0x10 [ 14.306843] ? ktime_get_ts64+0x86/0x230 [ 14.306868] kunit_try_run_case+0x1a5/0x480 [ 14.306893] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.306916] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 14.306940] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 14.306966] ? __kthread_parkme+0x82/0x180 [ 14.306987] ? preempt_count_sub+0x50/0x80 [ 14.307011] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.307039] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.307065] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.307091] kthread+0x337/0x6f0 [ 14.307109] ? trace_preempt_on+0x20/0xc0 [ 14.307133] ? __pfx_kthread+0x10/0x10 [ 14.307155] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.307177] ? calculate_sigpending+0x7b/0xa0 [ 14.307201] ? __pfx_kthread+0x10/0x10 [ 14.307223] ret_from_fork+0x116/0x1d0 [ 14.307241] ? __pfx_kthread+0x10/0x10 [ 14.307262] ret_from_fork_asm+0x1a/0x30 [ 14.307295] </TASK> [ 14.307306] [ 14.318841] The buggy address belongs to the physical page: [ 14.319160] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1039f4 [ 14.319805] flags: 0x200000000000000(node=0|zone=2) [ 14.320046] raw: 0200000000000000 0000000000000000 dead000000000122 0000000000000000 [ 14.321250] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 14.321789] page dumped because: kasan: bad access detected [ 14.322070] [ 14.322171] Memory state around the buggy address: [ 14.322471] ffff8881039f3f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 14.322895] ffff8881039f3f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 14.323309] >ffff8881039f4000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 14.323792] ^ [ 14.324268] ffff8881039f4080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 14.324695] ffff8881039f4100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 14.324981] ==================================================================