Date
July 25, 2025, 3:13 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 34.421176] ================================================================== [ 34.421633] BUG: KASAN: use-after-free in mempool_uaf_helper+0x314/0x340 [ 34.421946] Read of size 1 at addr fff00000c9b8c000 by task kunit_try_catch/265 [ 34.422048] [ 34.422097] CPU: 0 UID: 0 PID: 265 Comm: kunit_try_catch Tainted: G B W N 6.16.0-rc7-next-20250725 #1 PREEMPT [ 34.422274] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST [ 34.422312] Hardware name: linux,dummy-virt (DT) [ 34.422363] Call trace: [ 34.422459] show_stack+0x20/0x38 (C) [ 34.422652] dump_stack_lvl+0x8c/0xd0 [ 34.422710] print_report+0x118/0x5e8 [ 34.422829] kasan_report+0xdc/0x128 [ 34.422999] __asan_report_load1_noabort+0x20/0x30 [ 34.423050] mempool_uaf_helper+0x314/0x340 [ 34.423510] mempool_page_alloc_uaf+0xc0/0x118 [ 34.423718] kunit_try_run_case+0x170/0x3f0 [ 34.423810] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 34.423884] kthread+0x328/0x630 [ 34.423985] ret_from_fork+0x10/0x20 [ 34.424229] [ 34.424291] The buggy address belongs to the physical page: [ 34.424332] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x109b8c [ 34.424570] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 34.424656] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 34.424950] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 34.425104] page dumped because: kasan: bad access detected [ 34.425145] [ 34.425163] Memory state around the buggy address: [ 34.425201] fff00000c9b8bf00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 34.425276] fff00000c9b8bf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 34.425373] >fff00000c9b8c000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 34.425438] ^ [ 34.425545] fff00000c9b8c080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 34.425630] fff00000c9b8c100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 34.425884] ================================================================== [ 34.355922] ================================================================== [ 34.355989] BUG: KASAN: use-after-free in mempool_uaf_helper+0x314/0x340 [ 34.356052] Read of size 1 at addr fff00000c9b8c000 by task kunit_try_catch/261 [ 34.356103] [ 34.356139] CPU: 0 UID: 0 PID: 261 Comm: kunit_try_catch Tainted: G B W N 6.16.0-rc7-next-20250725 #1 PREEMPT [ 34.356229] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST [ 34.356259] Hardware name: linux,dummy-virt (DT) [ 34.356291] Call trace: [ 34.356576] show_stack+0x20/0x38 (C) [ 34.356922] dump_stack_lvl+0x8c/0xd0 [ 34.357492] print_report+0x118/0x5e8 [ 34.357662] kasan_report+0xdc/0x128 [ 34.357968] __asan_report_load1_noabort+0x20/0x30 [ 34.358022] mempool_uaf_helper+0x314/0x340 [ 34.358069] mempool_kmalloc_large_uaf+0xc4/0x120 [ 34.358562] kunit_try_run_case+0x170/0x3f0 [ 34.358842] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 34.358970] kthread+0x328/0x630 [ 34.359013] ret_from_fork+0x10/0x20 [ 34.359062] [ 34.359086] The buggy address belongs to the physical page: [ 34.359271] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x109b8c [ 34.359516] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 34.359565] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 34.360114] page_type: f8(unknown) [ 34.360239] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 34.360290] raw: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000 [ 34.360341] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 34.360399] head: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000 [ 34.360448] head: 0bfffe0000000002 ffffc1ffc326e301 00000000ffffffff 00000000ffffffff [ 34.360863] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 34.360910] page dumped because: kasan: bad access detected [ 34.360943] [ 34.360961] Memory state around the buggy address: [ 34.361348] fff00000c9b8bf00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 34.361436] fff00000c9b8bf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 34.361486] >fff00000c9b8c000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 34.361628] ^ [ 34.361873] fff00000c9b8c080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 34.361918] fff00000c9b8c100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 34.361956] ==================================================================
[ 27.462087] ================================================================== [ 27.463555] BUG: KASAN: use-after-free in mempool_uaf_helper+0x392/0x400 [ 27.464241] Read of size 1 at addr ffff888106370000 by task kunit_try_catch/282 [ 27.465006] [ 27.465231] CPU: 0 UID: 0 PID: 282 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7-next-20250725 #1 PREEMPT(voluntary) [ 27.465300] Tainted: [B]=BAD_PAGE, [N]=TEST [ 27.465314] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 27.465336] Call Trace: [ 27.465349] <TASK> [ 27.465369] dump_stack_lvl+0x73/0xb0 [ 27.465402] print_report+0xd1/0x640 [ 27.465426] ? __virt_addr_valid+0x1db/0x2d0 [ 27.465453] ? mempool_uaf_helper+0x392/0x400 [ 27.465476] ? kasan_addr_to_slab+0x11/0xa0 [ 27.465498] ? mempool_uaf_helper+0x392/0x400 [ 27.465522] kasan_report+0x141/0x180 [ 27.465545] ? mempool_uaf_helper+0x392/0x400 [ 27.465573] __asan_report_load1_noabort+0x18/0x20 [ 27.465599] mempool_uaf_helper+0x392/0x400 [ 27.465622] ? __pfx_mempool_uaf_helper+0x10/0x10 [ 27.465646] ? dequeue_entities+0x23f/0x1630 [ 27.465672] ? __kasan_check_write+0x18/0x20 [ 27.465697] ? __pfx_sched_clock_cpu+0x10/0x10 [ 27.465719] ? finish_task_switch.isra.0+0x153/0x700 [ 27.465747] mempool_page_alloc_uaf+0xed/0x140 [ 27.465772] ? __pfx_mempool_page_alloc_uaf+0x10/0x10 [ 27.465848] ? __pfx_mempool_alloc_pages+0x10/0x10 [ 27.465874] ? __pfx_mempool_free_pages+0x10/0x10 [ 27.465901] ? __pfx_read_tsc+0x10/0x10 [ 27.465925] ? ktime_get_ts64+0x86/0x230 [ 27.465962] kunit_try_run_case+0x1a5/0x480 [ 27.465988] ? __pfx_kunit_try_run_case+0x10/0x10 [ 27.466013] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 27.466037] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 27.466070] ? __kthread_parkme+0x82/0x180 [ 27.466092] ? preempt_count_sub+0x50/0x80 [ 27.466116] ? __pfx_kunit_try_run_case+0x10/0x10 [ 27.466141] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 27.466166] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 27.466191] kthread+0x337/0x6f0 [ 27.466212] ? trace_preempt_on+0x20/0xc0 [ 27.466238] ? __pfx_kthread+0x10/0x10 [ 27.466259] ? _raw_spin_unlock_irq+0x47/0x80 [ 27.466284] ? calculate_sigpending+0x7b/0xa0 [ 27.466309] ? __pfx_kthread+0x10/0x10 [ 27.466331] ret_from_fork+0x116/0x1d0 [ 27.466352] ? __pfx_kthread+0x10/0x10 [ 27.466373] ret_from_fork_asm+0x1a/0x30 [ 27.466408] </TASK> [ 27.466421] [ 27.478995] The buggy address belongs to the physical page: [ 27.479365] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106370 [ 27.479625] flags: 0x200000000000000(node=0|zone=2) [ 27.479826] raw: 0200000000000000 0000000000000000 dead000000000122 0000000000000000 [ 27.480288] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 27.480626] page dumped because: kasan: bad access detected [ 27.480919] [ 27.481000] Memory state around the buggy address: [ 27.481448] ffff88810636ff00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.481718] ffff88810636ff80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.482306] >ffff888106370000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.482601] ^ [ 27.482759] ffff888106370080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.483165] ffff888106370100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.483441] ================================================================== [ 27.378707] ================================================================== [ 27.379614] BUG: KASAN: use-after-free in mempool_uaf_helper+0x392/0x400 [ 27.380417] Read of size 1 at addr ffff888106370000 by task kunit_try_catch/278 [ 27.381339] [ 27.381661] CPU: 0 UID: 0 PID: 278 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7-next-20250725 #1 PREEMPT(voluntary) [ 27.381719] Tainted: [B]=BAD_PAGE, [N]=TEST [ 27.381733] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 27.381757] Call Trace: [ 27.381771] <TASK> [ 27.381789] dump_stack_lvl+0x73/0xb0 [ 27.381822] print_report+0xd1/0x640 [ 27.381848] ? __virt_addr_valid+0x1db/0x2d0 [ 27.381874] ? mempool_uaf_helper+0x392/0x400 [ 27.381897] ? kasan_addr_to_slab+0x11/0xa0 [ 27.381919] ? mempool_uaf_helper+0x392/0x400 [ 27.381954] kasan_report+0x141/0x180 [ 27.381978] ? mempool_uaf_helper+0x392/0x400 [ 27.382034] __asan_report_load1_noabort+0x18/0x20 [ 27.382227] mempool_uaf_helper+0x392/0x400 [ 27.382258] ? __pfx_mempool_uaf_helper+0x10/0x10 [ 27.382287] ? finish_task_switch.isra.0+0x153/0x700 [ 27.382317] mempool_kmalloc_large_uaf+0xef/0x140 [ 27.382342] ? __pfx_mempool_kmalloc_large_uaf+0x10/0x10 [ 27.382369] ? __pfx_mempool_kmalloc+0x10/0x10 [ 27.382394] ? __pfx_mempool_kfree+0x10/0x10 [ 27.382420] ? __pfx_read_tsc+0x10/0x10 [ 27.382443] ? ktime_get_ts64+0x86/0x230 [ 27.382469] kunit_try_run_case+0x1a5/0x480 [ 27.382495] ? __pfx_kunit_try_run_case+0x10/0x10 [ 27.382520] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 27.382544] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 27.382572] ? __kthread_parkme+0x82/0x180 [ 27.382596] ? preempt_count_sub+0x50/0x80 [ 27.382621] ? __pfx_kunit_try_run_case+0x10/0x10 [ 27.382646] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 27.382672] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 27.382698] kthread+0x337/0x6f0 [ 27.382719] ? trace_preempt_on+0x20/0xc0 [ 27.382744] ? __pfx_kthread+0x10/0x10 [ 27.382766] ? _raw_spin_unlock_irq+0x47/0x80 [ 27.382813] ? calculate_sigpending+0x7b/0xa0 [ 27.382839] ? __pfx_kthread+0x10/0x10 [ 27.382861] ret_from_fork+0x116/0x1d0 [ 27.382882] ? __pfx_kthread+0x10/0x10 [ 27.382903] ret_from_fork_asm+0x1a/0x30 [ 27.382936] </TASK> [ 27.382957] [ 27.398400] The buggy address belongs to the physical page: [ 27.398655] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106370 [ 27.399400] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 27.399905] flags: 0x200000000000040(head|node=0|zone=2) [ 27.400387] page_type: f8(unknown) [ 27.400812] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 27.401466] raw: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000 [ 27.402008] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 27.402503] head: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000 [ 27.402886] head: 0200000000000002 ffffea000418dc01 00000000ffffffff 00000000ffffffff [ 27.403522] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 27.404209] page dumped because: kasan: bad access detected [ 27.404613] [ 27.404712] Memory state around the buggy address: [ 27.405290] ffff88810636ff00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.405606] ffff88810636ff80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.406250] >ffff888106370000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.406706] ^ [ 27.407233] ffff888106370080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.407651] ffff888106370100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.408145] ==================================================================