Date
June 17, 2025, 3:40 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 24.214530] ================================================================== [ 24.214652] BUG: KASAN: use-after-free in mempool_uaf_helper+0x314/0x340 [ 24.214788] Read of size 1 at addr fff00000c7a14000 by task kunit_try_catch/231 [ 24.214856] [ 24.214914] CPU: 0 UID: 0 PID: 231 Comm: kunit_try_catch Tainted: G B N 6.15.3-rc1 #1 PREEMPT [ 24.215018] Tainted: [B]=BAD_PAGE, [N]=TEST [ 24.215047] Hardware name: linux,dummy-virt (DT) [ 24.215089] Call trace: [ 24.215118] show_stack+0x20/0x38 (C) [ 24.215180] dump_stack_lvl+0x8c/0xd0 [ 24.215238] print_report+0x118/0x608 [ 24.215328] kasan_report+0xdc/0x128 [ 24.215377] __asan_report_load1_noabort+0x20/0x30 [ 24.215440] mempool_uaf_helper+0x314/0x340 [ 24.215493] mempool_kmalloc_large_uaf+0xc4/0x120 [ 24.215551] kunit_try_run_case+0x170/0x3f0 [ 24.215607] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 24.215669] kthread+0x328/0x630 [ 24.215735] ret_from_fork+0x10/0x20 [ 24.215855] [ 24.215881] The buggy address belongs to the physical page: [ 24.215921] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107a14 [ 24.215986] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 24.216040] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 24.216158] page_type: f8(unknown) [ 24.216217] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 24.216275] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 24.216333] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 24.216396] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 24.216452] head: 0bfffe0000000002 ffffc1ffc31e8501 00000000ffffffff 00000000ffffffff [ 24.216505] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 24.216551] page dumped because: kasan: bad access detected [ 24.216588] [ 24.216609] Memory state around the buggy address: [ 24.216651] fff00000c7a13f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 24.216700] fff00000c7a13f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 24.216763] >fff00000c7a14000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 24.216808] ^ [ 24.216844] fff00000c7a14080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 24.216889] fff00000c7a14100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 24.216933] ================================================================== [ 24.273301] ================================================================== [ 24.273423] BUG: KASAN: use-after-free in mempool_uaf_helper+0x314/0x340 [ 24.273517] Read of size 1 at addr fff00000c7a48000 by task kunit_try_catch/235 [ 24.273578] [ 24.273657] CPU: 0 UID: 0 PID: 235 Comm: kunit_try_catch Tainted: G B N 6.15.3-rc1 #1 PREEMPT [ 24.273775] Tainted: [B]=BAD_PAGE, [N]=TEST [ 24.273878] Hardware name: linux,dummy-virt (DT) [ 24.274089] Call trace: [ 24.274127] show_stack+0x20/0x38 (C) [ 24.274222] dump_stack_lvl+0x8c/0xd0 [ 24.274280] print_report+0x118/0x608 [ 24.275035] kasan_report+0xdc/0x128 [ 24.275109] __asan_report_load1_noabort+0x20/0x30 [ 24.275175] mempool_uaf_helper+0x314/0x340 [ 24.275234] mempool_page_alloc_uaf+0xc0/0x118 [ 24.275289] kunit_try_run_case+0x170/0x3f0 [ 24.275998] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 24.276088] kthread+0x328/0x630 [ 24.276343] ret_from_fork+0x10/0x20 [ 24.276870] [ 24.276985] The buggy address belongs to the physical page: [ 24.277034] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107a48 [ 24.277108] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 24.277196] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 24.277256] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 24.277674] page dumped because: kasan: bad access detected [ 24.277797] [ 24.277825] Memory state around the buggy address: [ 24.277890] fff00000c7a47f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.278156] fff00000c7a47f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.278452] >fff00000c7a48000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 24.278523] ^ [ 24.278600] fff00000c7a48080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 24.278653] fff00000c7a48100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 24.278700] ==================================================================
[ 21.624687] ================================================================== [ 21.625436] BUG: KASAN: use-after-free in mempool_uaf_helper+0x392/0x400 [ 21.626645] Read of size 1 at addr ffff888103924000 by task kunit_try_catch/249 [ 21.627905] [ 21.628510] CPU: 1 UID: 0 PID: 249 Comm: kunit_try_catch Tainted: G B N 6.15.3-rc1 #1 PREEMPT(voluntary) [ 21.628645] Tainted: [B]=BAD_PAGE, [N]=TEST [ 21.628688] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 21.628961] Call Trace: [ 21.629266] <TASK> [ 21.629322] dump_stack_lvl+0x73/0xb0 [ 21.629392] print_report+0xd1/0x650 [ 21.629435] ? __virt_addr_valid+0x1db/0x2d0 [ 21.629472] ? mempool_uaf_helper+0x392/0x400 [ 21.629506] ? kasan_addr_to_slab+0x11/0xa0 [ 21.629541] ? mempool_uaf_helper+0x392/0x400 [ 21.629578] kasan_report+0x141/0x180 [ 21.629614] ? mempool_uaf_helper+0x392/0x400 [ 21.629657] __asan_report_load1_noabort+0x18/0x20 [ 21.629688] mempool_uaf_helper+0x392/0x400 [ 21.629726] ? __pfx_mempool_uaf_helper+0x10/0x10 [ 21.629765] ? dequeue_entities+0x852/0x1740 [ 21.629806] ? finish_task_switch.isra.0+0x153/0x700 [ 21.629848] mempool_kmalloc_large_uaf+0xef/0x140 [ 21.629887] ? __pfx_mempool_kmalloc_large_uaf+0x10/0x10 [ 21.629925] ? dequeue_task_fair+0x166/0x4e0 [ 21.630010] ? __pfx_mempool_kmalloc+0x10/0x10 [ 21.630114] ? __pfx_mempool_kfree+0x10/0x10 [ 21.630153] ? __pfx_read_tsc+0x10/0x10 [ 21.630185] ? ktime_get_ts64+0x86/0x230 [ 21.630224] kunit_try_run_case+0x1a5/0x480 [ 21.630262] ? __pfx_kunit_try_run_case+0x10/0x10 [ 21.630317] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 21.630359] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 21.630395] ? __kthread_parkme+0x82/0x180 [ 21.630427] ? preempt_count_sub+0x50/0x80 [ 21.630462] ? __pfx_kunit_try_run_case+0x10/0x10 [ 21.630497] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 21.630529] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 21.630563] kthread+0x337/0x6f0 [ 21.630587] ? trace_preempt_on+0x20/0xc0 [ 21.630622] ? __pfx_kthread+0x10/0x10 [ 21.630646] ? _raw_spin_unlock_irq+0x47/0x80 [ 21.630677] ? calculate_sigpending+0x7b/0xa0 [ 21.630708] ? __pfx_kthread+0x10/0x10 [ 21.630733] ret_from_fork+0x41/0x80 [ 21.630763] ? __pfx_kthread+0x10/0x10 [ 21.630787] ret_from_fork_asm+0x1a/0x30 [ 21.630832] </TASK> [ 21.630848] [ 21.653368] The buggy address belongs to the physical page: [ 21.654216] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103924 [ 21.655735] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 21.656630] flags: 0x200000000000040(head|node=0|zone=2) [ 21.657347] page_type: f8(unknown) [ 21.657779] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 21.658640] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 21.659499] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 21.660533] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 21.661419] head: 0200000000000002 ffffea00040e4901 00000000ffffffff 00000000ffffffff [ 21.662220] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 21.662843] page dumped because: kasan: bad access detected [ 21.663362] [ 21.663584] Memory state around the buggy address: [ 21.664037] ffff888103923f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 21.664819] ffff888103923f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 21.665568] >ffff888103924000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 21.666880] ^ [ 21.667443] ffff888103924080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 21.668260] ffff888103924100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 21.668919] ================================================================== [ 21.758745] ================================================================== [ 21.759647] BUG: KASAN: use-after-free in mempool_uaf_helper+0x392/0x400 [ 21.760194] Read of size 1 at addr ffff888102a08000 by task kunit_try_catch/253 [ 21.762431] [ 21.762905] CPU: 0 UID: 0 PID: 253 Comm: kunit_try_catch Tainted: G B N 6.15.3-rc1 #1 PREEMPT(voluntary) [ 21.763227] Tainted: [B]=BAD_PAGE, [N]=TEST [ 21.763269] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 21.763348] Call Trace: [ 21.763386] <TASK> [ 21.763430] dump_stack_lvl+0x73/0xb0 [ 21.763512] print_report+0xd1/0x650 [ 21.763579] ? __virt_addr_valid+0x1db/0x2d0 [ 21.763643] ? mempool_uaf_helper+0x392/0x400 [ 21.763704] ? kasan_addr_to_slab+0x11/0xa0 [ 21.763764] ? mempool_uaf_helper+0x392/0x400 [ 21.763827] kasan_report+0x141/0x180 [ 21.763899] ? mempool_uaf_helper+0x392/0x400 [ 21.763974] __asan_report_load1_noabort+0x18/0x20 [ 21.764035] mempool_uaf_helper+0x392/0x400 [ 21.764105] ? __pfx_mempool_uaf_helper+0x10/0x10 [ 21.764170] ? dequeue_entities+0x852/0x1740 [ 21.764244] ? finish_task_switch.isra.0+0x153/0x700 [ 21.764479] mempool_page_alloc_uaf+0xed/0x140 [ 21.764525] ? __pfx_mempool_page_alloc_uaf+0x10/0x10 [ 21.764561] ? dequeue_task_fair+0x166/0x4e0 [ 21.764596] ? __pfx_mempool_alloc_pages+0x10/0x10 [ 21.764635] ? __pfx_mempool_free_pages+0x10/0x10 [ 21.764673] ? __pfx_read_tsc+0x10/0x10 [ 21.764706] ? ktime_get_ts64+0x86/0x230 [ 21.764747] kunit_try_run_case+0x1a5/0x480 [ 21.764791] ? __pfx_kunit_try_run_case+0x10/0x10 [ 21.764827] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 21.764867] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 21.764904] ? __kthread_parkme+0x82/0x180 [ 21.764940] ? preempt_count_sub+0x50/0x80 [ 21.765020] ? __pfx_kunit_try_run_case+0x10/0x10 [ 21.765092] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 21.765137] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 21.765175] kthread+0x337/0x6f0 [ 21.765202] ? trace_preempt_on+0x20/0xc0 [ 21.765240] ? __pfx_kthread+0x10/0x10 [ 21.765268] ? _raw_spin_unlock_irq+0x47/0x80 [ 21.765344] ? calculate_sigpending+0x7b/0xa0 [ 21.765452] ? __pfx_kthread+0x10/0x10 [ 21.765493] ret_from_fork+0x41/0x80 [ 21.765533] ? __pfx_kthread+0x10/0x10 [ 21.765563] ret_from_fork_asm+0x1a/0x30 [ 21.765611] </TASK> [ 21.765630] [ 21.793609] The buggy address belongs to the physical page: [ 21.794740] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102a08 [ 21.795243] flags: 0x200000000000000(node=0|zone=2) [ 21.795769] raw: 0200000000000000 0000000000000000 dead000000000122 0000000000000000 [ 21.796784] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 21.797942] page dumped because: kasan: bad access detected [ 21.798421] [ 21.798584] Memory state around the buggy address: [ 21.798957] ffff888102a07f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 21.800276] ffff888102a07f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 21.801131] >ffff888102a08000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 21.802329] ^ [ 21.802820] ffff888102a08080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 21.803456] ffff888102a08100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 21.804016] ==================================================================