Date
July 5, 2025, 11:09 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 21.607842] ================================================================== [ 21.607964] BUG: KASAN: use-after-free in mempool_uaf_helper+0x314/0x340 [ 21.608075] Read of size 1 at addr fff00000c797c000 by task kunit_try_catch/230 [ 21.608180] [ 21.608243] CPU: 0 UID: 0 PID: 230 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 21.609153] Tainted: [B]=BAD_PAGE, [N]=TEST [ 21.609240] Hardware name: linux,dummy-virt (DT) [ 21.609717] Call trace: [ 21.609778] show_stack+0x20/0x38 (C) [ 21.609936] dump_stack_lvl+0x8c/0xd0 [ 21.610395] print_report+0x118/0x608 [ 21.610580] kasan_report+0xdc/0x128 [ 21.610675] __asan_report_load1_noabort+0x20/0x30 [ 21.611120] mempool_uaf_helper+0x314/0x340 [ 21.611260] mempool_kmalloc_large_uaf+0xc4/0x120 [ 21.611371] kunit_try_run_case+0x170/0x3f0 [ 21.611554] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.611738] kthread+0x328/0x630 [ 21.611843] ret_from_fork+0x10/0x20 [ 21.612012] [ 21.612129] The buggy address belongs to the physical page: [ 21.612197] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10797c [ 21.612817] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 21.613375] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 21.613936] page_type: f8(unknown) [ 21.614650] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 21.614819] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 21.614940] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 21.615051] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 21.615159] head: 0bfffe0000000002 ffffc1ffc31e5f01 00000000ffffffff 00000000ffffffff [ 21.615274] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 21.615383] page dumped because: kasan: bad access detected [ 21.615461] [ 21.615504] Memory state around the buggy address: [ 21.615578] fff00000c797bf00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 21.615680] fff00000c797bf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 21.616944] >fff00000c797c000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 21.617486] ^ [ 21.617594] fff00000c797c080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 21.617690] fff00000c797c100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 21.618146] ================================================================== [ 21.680444] ================================================================== [ 21.680579] BUG: KASAN: use-after-free in mempool_uaf_helper+0x314/0x340 [ 21.680704] Read of size 1 at addr fff00000c797c000 by task kunit_try_catch/234 [ 21.680822] [ 21.680892] CPU: 0 UID: 0 PID: 234 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 21.681086] Tainted: [B]=BAD_PAGE, [N]=TEST [ 21.681798] Hardware name: linux,dummy-virt (DT) [ 21.682922] Call trace: [ 21.683044] show_stack+0x20/0x38 (C) [ 21.683244] dump_stack_lvl+0x8c/0xd0 [ 21.683388] print_report+0x118/0x608 [ 21.683500] kasan_report+0xdc/0x128 [ 21.683609] __asan_report_load1_noabort+0x20/0x30 [ 21.684405] mempool_uaf_helper+0x314/0x340 [ 21.684552] mempool_page_alloc_uaf+0xc0/0x118 [ 21.684701] kunit_try_run_case+0x170/0x3f0 [ 21.684811] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.685456] kthread+0x328/0x630 [ 21.686026] ret_from_fork+0x10/0x20 [ 21.686248] [ 21.686300] The buggy address belongs to the physical page: [ 21.686379] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10797c [ 21.686899] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 21.687208] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 21.687555] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 21.687863] page dumped because: kasan: bad access detected [ 21.688084] [ 21.688304] Memory state around the buggy address: [ 21.688561] fff00000c797bf00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 21.688741] fff00000c797bf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 21.688919] >fff00000c797c000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 21.689029] ^ [ 21.689098] fff00000c797c080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 21.689449] fff00000c797c100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 21.690021] ==================================================================
[ 15.325110] ================================================================== [ 15.326295] BUG: KASAN: use-after-free in mempool_uaf_helper+0x392/0x400 [ 15.326592] Read of size 1 at addr ffff8881039f8000 by task kunit_try_catch/247 [ 15.326977] [ 15.327114] CPU: 1 UID: 0 PID: 247 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 15.327173] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.327189] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 15.327218] Call Trace: [ 15.327236] <TASK> [ 15.327258] dump_stack_lvl+0x73/0xb0 [ 15.327295] print_report+0xd1/0x650 [ 15.327324] ? __virt_addr_valid+0x1db/0x2d0 [ 15.327354] ? mempool_uaf_helper+0x392/0x400 [ 15.327382] ? kasan_addr_to_slab+0x11/0xa0 [ 15.327408] ? mempool_uaf_helper+0x392/0x400 [ 15.327436] kasan_report+0x141/0x180 [ 15.327464] ? mempool_uaf_helper+0x392/0x400 [ 15.327497] __asan_report_load1_noabort+0x18/0x20 [ 15.327527] mempool_uaf_helper+0x392/0x400 [ 15.327555] ? __pfx_mempool_uaf_helper+0x10/0x10 [ 15.327585] ? __pfx_sched_clock_cpu+0x10/0x10 [ 15.327614] ? finish_task_switch.isra.0+0x153/0x700 [ 15.327645] mempool_kmalloc_large_uaf+0xef/0x140 [ 15.327691] ? __pfx_mempool_kmalloc_large_uaf+0x10/0x10 [ 15.327721] ? __kasan_check_write+0x18/0x20 [ 15.327748] ? __pfx_mempool_kmalloc+0x10/0x10 [ 15.327777] ? __pfx_mempool_kfree+0x10/0x10 [ 15.327808] ? __pfx_read_tsc+0x10/0x10 [ 15.327835] ? ktime_get_ts64+0x86/0x230 [ 15.327862] ? sysvec_apic_timer_interrupt+0x50/0x90 [ 15.327894] kunit_try_run_case+0x1a5/0x480 [ 15.327927] ? __pfx_kunit_try_run_case+0x10/0x10 [ 15.327956] ? queued_spin_lock_slowpath+0x116/0xb40 [ 15.327987] ? __kthread_parkme+0x82/0x180 [ 15.328067] ? preempt_count_sub+0x50/0x80 [ 15.328100] ? __pfx_kunit_try_run_case+0x10/0x10 [ 15.328129] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 15.328157] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 15.328185] kthread+0x337/0x6f0 [ 15.328209] ? trace_preempt_on+0x20/0xc0 [ 15.328239] ? __pfx_kthread+0x10/0x10 [ 15.328265] ? _raw_spin_unlock_irq+0x47/0x80 [ 15.328290] ? calculate_sigpending+0x7b/0xa0 [ 15.328319] ? __pfx_kthread+0x10/0x10 [ 15.328346] ret_from_fork+0x116/0x1d0 [ 15.328369] ? __pfx_kthread+0x10/0x10 [ 15.328394] ret_from_fork_asm+0x1a/0x30 [ 15.328432] </TASK> [ 15.328447] [ 15.338393] The buggy address belongs to the physical page: [ 15.338733] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1039f8 [ 15.339228] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 15.339625] flags: 0x200000000000040(head|node=0|zone=2) [ 15.339904] page_type: f8(unknown) [ 15.340063] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 15.340482] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 15.341122] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 15.341498] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 15.342137] head: 0200000000000002 ffffea00040e7e01 00000000ffffffff 00000000ffffffff [ 15.342520] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 15.343082] page dumped because: kasan: bad access detected [ 15.343301] [ 15.343389] Memory state around the buggy address: [ 15.343582] ffff8881039f7f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 15.344135] ffff8881039f7f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 15.344534] >ffff8881039f8000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 15.344948] ^ [ 15.345112] ffff8881039f8080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 15.345485] ffff8881039f8100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 15.345780] ================================================================== [ 15.393053] ================================================================== [ 15.393574] BUG: KASAN: use-after-free in mempool_uaf_helper+0x392/0x400 [ 15.394784] Read of size 1 at addr ffff8881039f8000 by task kunit_try_catch/251 [ 15.395694] [ 15.396094] CPU: 1 UID: 0 PID: 251 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 15.396160] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.396178] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 15.396208] Call Trace: [ 15.396225] <TASK> [ 15.396250] dump_stack_lvl+0x73/0xb0 [ 15.396293] print_report+0xd1/0x650 [ 15.396322] ? __virt_addr_valid+0x1db/0x2d0 [ 15.396351] ? mempool_uaf_helper+0x392/0x400 [ 15.396378] ? kasan_addr_to_slab+0x11/0xa0 [ 15.396402] ? mempool_uaf_helper+0x392/0x400 [ 15.396429] kasan_report+0x141/0x180 [ 15.396455] ? mempool_uaf_helper+0x392/0x400 [ 15.396487] __asan_report_load1_noabort+0x18/0x20 [ 15.396516] mempool_uaf_helper+0x392/0x400 [ 15.396542] ? __pfx_mempool_uaf_helper+0x10/0x10 [ 15.396571] ? __pfx_sched_clock_cpu+0x10/0x10 [ 15.396598] ? finish_task_switch.isra.0+0x153/0x700 [ 15.396627] mempool_page_alloc_uaf+0xed/0x140 [ 15.396670] ? __pfx_mempool_page_alloc_uaf+0x10/0x10 [ 15.396702] ? __pfx_mempool_alloc_pages+0x10/0x10 [ 15.396725] ? __pfx_mempool_free_pages+0x10/0x10 [ 15.396751] ? __pfx_read_tsc+0x10/0x10 [ 15.396785] ? ktime_get_ts64+0x86/0x230 [ 15.396814] kunit_try_run_case+0x1a5/0x480 [ 15.396844] ? __pfx_kunit_try_run_case+0x10/0x10 [ 15.396870] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 15.396899] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 15.396925] ? __kthread_parkme+0x82/0x180 [ 15.396951] ? preempt_count_sub+0x50/0x80 [ 15.396977] ? __pfx_kunit_try_run_case+0x10/0x10 [ 15.397004] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 15.397031] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 15.397057] kthread+0x337/0x6f0 [ 15.397081] ? trace_preempt_on+0x20/0xc0 [ 15.397108] ? __pfx_kthread+0x10/0x10 [ 15.397132] ? _raw_spin_unlock_irq+0x47/0x80 [ 15.397156] ? calculate_sigpending+0x7b/0xa0 [ 15.397187] ? __pfx_kthread+0x10/0x10 [ 15.397211] ret_from_fork+0x116/0x1d0 [ 15.397233] ? __pfx_kthread+0x10/0x10 [ 15.397256] ret_from_fork_asm+0x1a/0x30 [ 15.397294] </TASK> [ 15.397307] [ 15.412520] The buggy address belongs to the physical page: [ 15.413152] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1039f8 [ 15.414009] flags: 0x200000000000000(node=0|zone=2) [ 15.414555] raw: 0200000000000000 0000000000000000 dead000000000122 0000000000000000 [ 15.415365] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 15.416161] page dumped because: kasan: bad access detected [ 15.416486] [ 15.416573] Memory state around the buggy address: [ 15.417011] ffff8881039f7f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 15.417722] ffff8881039f7f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 15.418439] >ffff8881039f8000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 15.418708] ^ [ 15.419043] ffff8881039f8080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 15.419788] ffff8881039f8100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 15.420490] ==================================================================