Date
June 20, 2025, 12:38 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 34.692331] ================================================================== [ 34.692597] BUG: KASAN: use-after-free in mempool_uaf_helper+0x314/0x340 [ 34.692764] Read of size 1 at addr fff00000c5a48000 by task kunit_try_catch/244 [ 34.692873] [ 34.692960] CPU: 1 UID: 0 PID: 244 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc2-next-20250620 #1 PREEMPT [ 34.693170] Tainted: [B]=BAD_PAGE, [N]=TEST [ 34.693238] Hardware name: linux,dummy-virt (DT) [ 34.693367] Call trace: [ 34.693422] show_stack+0x20/0x38 (C) [ 34.693526] dump_stack_lvl+0x8c/0xd0 [ 34.693652] print_report+0x118/0x608 [ 34.694049] kasan_report+0xdc/0x128 [ 34.694170] __asan_report_load1_noabort+0x20/0x30 [ 34.694324] mempool_uaf_helper+0x314/0x340 [ 34.694424] mempool_page_alloc_uaf+0xc0/0x118 [ 34.694554] kunit_try_run_case+0x170/0x3f0 [ 34.694765] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 34.694922] kthread+0x328/0x630 [ 34.695021] ret_from_fork+0x10/0x20 [ 34.695161] [ 34.695250] The buggy address belongs to the physical page: [ 34.695364] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105a48 [ 34.695579] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 34.695795] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 34.695960] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 34.696108] page dumped because: kasan: bad access detected [ 34.696215] [ 34.696265] Memory state around the buggy address: [ 34.696397] fff00000c5a47f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 34.696495] fff00000c5a47f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 34.696594] >fff00000c5a48000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 34.696705] ^ [ 34.697159] fff00000c5a48080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 34.697298] fff00000c5a48100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 34.697441] ================================================================== [ 34.588000] ================================================================== [ 34.588552] BUG: KASAN: use-after-free in mempool_uaf_helper+0x314/0x340 [ 34.588972] Read of size 1 at addr fff00000c5a44000 by task kunit_try_catch/240 [ 34.589146] [ 34.589277] CPU: 1 UID: 0 PID: 240 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc2-next-20250620 #1 PREEMPT [ 34.589509] Tainted: [B]=BAD_PAGE, [N]=TEST [ 34.589562] Hardware name: linux,dummy-virt (DT) [ 34.589643] Call trace: [ 34.589911] show_stack+0x20/0x38 (C) [ 34.590051] dump_stack_lvl+0x8c/0xd0 [ 34.590437] print_report+0x118/0x608 [ 34.590565] kasan_report+0xdc/0x128 [ 34.590699] __asan_report_load1_noabort+0x20/0x30 [ 34.590841] mempool_uaf_helper+0x314/0x340 [ 34.591005] mempool_kmalloc_large_uaf+0xc4/0x120 [ 34.591171] kunit_try_run_case+0x170/0x3f0 [ 34.591342] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 34.591531] kthread+0x328/0x630 [ 34.591692] ret_from_fork+0x10/0x20 [ 34.591835] [ 34.591917] The buggy address belongs to the physical page: [ 34.592044] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105a44 [ 34.592265] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 34.592383] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 34.592524] page_type: f8(unknown) [ 34.592639] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 34.592778] raw: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000 [ 34.592908] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 34.593008] head: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000 [ 34.593105] head: 0bfffe0000000002 ffffc1ffc3169101 00000000ffffffff 00000000ffffffff [ 34.593216] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 34.593324] page dumped because: kasan: bad access detected [ 34.593411] [ 34.593511] Memory state around the buggy address: [ 34.593628] fff00000c5a43f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 34.593948] fff00000c5a43f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 34.594319] >fff00000c5a44000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 34.594954] ^ [ 34.595292] fff00000c5a44080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 34.595441] fff00000c5a44100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 34.595543] ==================================================================
[ 27.333196] ================================================================== [ 27.333682] BUG: KASAN: use-after-free in mempool_uaf_helper+0x392/0x400 [ 27.334292] Read of size 1 at addr ffff888102a60000 by task kunit_try_catch/258 [ 27.334807] [ 27.334961] CPU: 1 UID: 0 PID: 258 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc2-next-20250620 #1 PREEMPT(voluntary) [ 27.335372] Tainted: [B]=BAD_PAGE, [N]=TEST [ 27.335413] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 27.335475] Call Trace: [ 27.335507] <TASK> [ 27.335550] dump_stack_lvl+0x73/0xb0 [ 27.335621] print_report+0xd1/0x650 [ 27.335790] ? __virt_addr_valid+0x1db/0x2d0 [ 27.335836] ? mempool_uaf_helper+0x392/0x400 [ 27.335881] ? kasan_addr_to_slab+0x11/0xa0 [ 27.335926] ? mempool_uaf_helper+0x392/0x400 [ 27.335968] kasan_report+0x141/0x180 [ 27.336007] ? mempool_uaf_helper+0x392/0x400 [ 27.336091] __asan_report_load1_noabort+0x18/0x20 [ 27.336140] mempool_uaf_helper+0x392/0x400 [ 27.336204] ? __pfx_mempool_uaf_helper+0x10/0x10 [ 27.336254] ? __kasan_check_write+0x18/0x20 [ 27.336305] ? __pfx_sched_clock_cpu+0x10/0x10 [ 27.336349] ? finish_task_switch.isra.0+0x153/0x700 [ 27.336388] mempool_kmalloc_large_uaf+0xef/0x140 [ 27.336412] ? __pfx_mempool_kmalloc_large_uaf+0x10/0x10 [ 27.336438] ? __pfx_mempool_kmalloc+0x10/0x10 [ 27.336489] ? __pfx_mempool_kfree+0x10/0x10 [ 27.336516] ? __pfx_read_tsc+0x10/0x10 [ 27.336540] ? ktime_get_ts64+0x86/0x230 [ 27.336583] kunit_try_run_case+0x1a5/0x480 [ 27.336623] ? __pfx_kunit_try_run_case+0x10/0x10 [ 27.336657] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 27.336697] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 27.336726] ? __kthread_parkme+0x82/0x180 [ 27.336748] ? preempt_count_sub+0x50/0x80 [ 27.336772] ? __pfx_kunit_try_run_case+0x10/0x10 [ 27.336797] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 27.336821] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 27.336845] kthread+0x337/0x6f0 [ 27.336865] ? trace_preempt_on+0x20/0xc0 [ 27.336890] ? __pfx_kthread+0x10/0x10 [ 27.336911] ? _raw_spin_unlock_irq+0x47/0x80 [ 27.336933] ? calculate_sigpending+0x7b/0xa0 [ 27.336959] ? __pfx_kthread+0x10/0x10 [ 27.336981] ret_from_fork+0x116/0x1d0 [ 27.337001] ? __pfx_kthread+0x10/0x10 [ 27.337022] ret_from_fork_asm+0x1a/0x30 [ 27.337054] </TASK> [ 27.337068] [ 27.351904] The buggy address belongs to the physical page: [ 27.352318] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102a60 [ 27.352656] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 27.353384] flags: 0x200000000000040(head|node=0|zone=2) [ 27.353839] page_type: f8(unknown) [ 27.354183] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 27.354510] raw: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000 [ 27.355008] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 27.355394] head: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000 [ 27.355792] head: 0200000000000002 ffffea00040a9801 00000000ffffffff 00000000ffffffff [ 27.356118] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 27.356937] page dumped because: kasan: bad access detected [ 27.357451] [ 27.357774] Memory state around the buggy address: [ 27.358118] ffff888102a5ff00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.358496] ffff888102a5ff80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.359089] >ffff888102a60000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.359472] ^ [ 27.359919] ffff888102a60080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.360365] ffff888102a60100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.360995] ================================================================== [ 27.414996] ================================================================== [ 27.415522] BUG: KASAN: use-after-free in mempool_uaf_helper+0x392/0x400 [ 27.416679] Read of size 1 at addr ffff888102b04000 by task kunit_try_catch/262 [ 27.417286] [ 27.417525] CPU: 0 UID: 0 PID: 262 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc2-next-20250620 #1 PREEMPT(voluntary) [ 27.417625] Tainted: [B]=BAD_PAGE, [N]=TEST [ 27.417651] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 27.417693] Call Trace: [ 27.417724] <TASK> [ 27.417760] dump_stack_lvl+0x73/0xb0 [ 27.417866] print_report+0xd1/0x650 [ 27.417916] ? __virt_addr_valid+0x1db/0x2d0 [ 27.417971] ? mempool_uaf_helper+0x392/0x400 [ 27.418022] ? kasan_addr_to_slab+0x11/0xa0 [ 27.418112] ? mempool_uaf_helper+0x392/0x400 [ 27.418176] kasan_report+0x141/0x180 [ 27.418225] ? mempool_uaf_helper+0x392/0x400 [ 27.418289] __asan_report_load1_noabort+0x18/0x20 [ 27.418347] mempool_uaf_helper+0x392/0x400 [ 27.418400] ? __pfx_mempool_uaf_helper+0x10/0x10 [ 27.418452] ? __kasan_check_write+0x18/0x20 [ 27.418506] ? __pfx_sched_clock_cpu+0x10/0x10 [ 27.418554] ? finish_task_switch.isra.0+0x153/0x700 [ 27.418603] mempool_page_alloc_uaf+0xed/0x140 [ 27.418645] ? __pfx_mempool_page_alloc_uaf+0x10/0x10 [ 27.418691] ? __pfx_mempool_alloc_pages+0x10/0x10 [ 27.418728] ? __pfx_mempool_free_pages+0x10/0x10 [ 27.418756] ? __pfx_read_tsc+0x10/0x10 [ 27.418782] ? ktime_get_ts64+0x86/0x230 [ 27.418812] kunit_try_run_case+0x1a5/0x480 [ 27.418842] ? __pfx_kunit_try_run_case+0x10/0x10 [ 27.418867] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 27.418894] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 27.418920] ? __kthread_parkme+0x82/0x180 [ 27.418943] ? preempt_count_sub+0x50/0x80 [ 27.418968] ? __pfx_kunit_try_run_case+0x10/0x10 [ 27.418993] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 27.419018] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 27.419043] kthread+0x337/0x6f0 [ 27.419064] ? trace_preempt_on+0x20/0xc0 [ 27.419090] ? __pfx_kthread+0x10/0x10 [ 27.419113] ? _raw_spin_unlock_irq+0x47/0x80 [ 27.419136] ? calculate_sigpending+0x7b/0xa0 [ 27.419178] ? __pfx_kthread+0x10/0x10 [ 27.419202] ret_from_fork+0x116/0x1d0 [ 27.419223] ? __pfx_kthread+0x10/0x10 [ 27.419245] ret_from_fork_asm+0x1a/0x30 [ 27.419279] </TASK> [ 27.419294] [ 27.433940] The buggy address belongs to the physical page: [ 27.434830] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102b04 [ 27.435410] flags: 0x200000000000000(node=0|zone=2) [ 27.436021] raw: 0200000000000000 0000000000000000 dead000000000122 0000000000000000 [ 27.436720] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 27.437865] page dumped because: kasan: bad access detected [ 27.438362] [ 27.438874] Memory state around the buggy address: [ 27.439103] ffff888102b03f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.439737] ffff888102b03f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.440075] >ffff888102b04000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.441030] ^ [ 27.441310] ffff888102b04080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.441784] ffff888102b04100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.442184] ==================================================================