Date
May 13, 2025, 12:07 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 21.121378] ================================================================== [ 21.122260] BUG: KASAN: use-after-free in mempool_uaf_helper+0x314/0x340 [ 21.122400] Read of size 1 at addr fff00000c78b4000 by task kunit_try_catch/229 [ 21.122941] [ 21.123050] CPU: 1 UID: 0 PID: 229 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250513 #1 PREEMPT [ 21.123288] Tainted: [B]=BAD_PAGE, [N]=TEST [ 21.123379] Hardware name: linux,dummy-virt (DT) [ 21.123444] Call trace: [ 21.123676] show_stack+0x20/0x38 (C) [ 21.124040] dump_stack_lvl+0x8c/0xd0 [ 21.124297] print_report+0x118/0x608 [ 21.124523] kasan_report+0xdc/0x128 [ 21.124617] __asan_report_load1_noabort+0x20/0x30 [ 21.125027] mempool_uaf_helper+0x314/0x340 [ 21.125126] mempool_kmalloc_large_uaf+0xc4/0x120 [ 21.125201] kunit_try_run_case+0x170/0x3f0 [ 21.125264] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.125322] kthread+0x328/0x630 [ 21.125374] ret_from_fork+0x10/0x20 [ 21.125694] [ 21.126195] The buggy address belongs to the physical page: [ 21.126247] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1078b4 [ 21.126317] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 21.126369] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 21.126706] page_type: f8(unknown) [ 21.126773] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 21.126842] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 21.126902] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 21.127328] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 21.127688] head: 0bfffe0000000002 ffffc1ffc31e2d01 00000000ffffffff 00000000ffffffff [ 21.127771] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 21.127820] page dumped because: kasan: bad access detected [ 21.127863] [ 21.128193] Memory state around the buggy address: [ 21.128408] fff00000c78b3f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 21.128608] fff00000c78b3f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 21.128664] >fff00000c78b4000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 21.128904] ^ [ 21.129081] fff00000c78b4080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 21.129137] fff00000c78b4100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 21.129182] ================================================================== [ 21.182145] ================================================================== [ 21.182388] BUG: KASAN: use-after-free in mempool_uaf_helper+0x314/0x340 [ 21.182773] Read of size 1 at addr fff00000c78b4000 by task kunit_try_catch/233 [ 21.183013] [ 21.183083] CPU: 1 UID: 0 PID: 233 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250513 #1 PREEMPT [ 21.183203] Tainted: [B]=BAD_PAGE, [N]=TEST [ 21.183235] Hardware name: linux,dummy-virt (DT) [ 21.183276] Call trace: [ 21.183309] show_stack+0x20/0x38 (C) [ 21.183534] dump_stack_lvl+0x8c/0xd0 [ 21.183739] print_report+0x118/0x608 [ 21.184080] kasan_report+0xdc/0x128 [ 21.184264] __asan_report_load1_noabort+0x20/0x30 [ 21.184553] mempool_uaf_helper+0x314/0x340 [ 21.184694] mempool_page_alloc_uaf+0xc0/0x118 [ 21.184888] kunit_try_run_case+0x170/0x3f0 [ 21.185135] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.185218] kthread+0x328/0x630 [ 21.185283] ret_from_fork+0x10/0x20 [ 21.185784] [ 21.185834] The buggy address belongs to the physical page: [ 21.185943] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1078b4 [ 21.186181] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 21.186399] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 21.186639] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 21.186748] page dumped because: kasan: bad access detected [ 21.186933] [ 21.187042] Memory state around the buggy address: [ 21.187086] fff00000c78b3f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 21.187150] fff00000c78b3f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 21.187330] >fff00000c78b4000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 21.187391] ^ [ 21.187431] fff00000c78b4080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 21.187577] fff00000c78b4100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 21.187781] ==================================================================
[ 12.712843] ================================================================== [ 12.713939] BUG: KASAN: use-after-free in mempool_uaf_helper+0x392/0x400 [ 12.714789] Read of size 1 at addr ffff88810397c000 by task kunit_try_catch/250 [ 12.715019] [ 12.715111] CPU: 0 UID: 0 PID: 250 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250513 #1 PREEMPT(voluntary) [ 12.715160] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.715173] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.715194] Call Trace: [ 12.715206] <TASK> [ 12.715223] dump_stack_lvl+0x73/0xb0 [ 12.715254] print_report+0xd1/0x650 [ 12.715276] ? __virt_addr_valid+0x1db/0x2d0 [ 12.715299] ? mempool_uaf_helper+0x392/0x400 [ 12.715322] ? kasan_addr_to_slab+0x11/0xa0 [ 12.715343] ? mempool_uaf_helper+0x392/0x400 [ 12.715366] kasan_report+0x141/0x180 [ 12.715389] ? mempool_uaf_helper+0x392/0x400 [ 12.715418] __asan_report_load1_noabort+0x18/0x20 [ 12.715438] mempool_uaf_helper+0x392/0x400 [ 12.715462] ? __pfx_mempool_uaf_helper+0x10/0x10 [ 12.715487] ? __pfx_sched_clock_cpu+0x10/0x10 [ 12.715510] ? finish_task_switch.isra.0+0x153/0x700 [ 12.715716] mempool_page_alloc_uaf+0xed/0x140 [ 12.715743] ? __pfx_mempool_page_alloc_uaf+0x10/0x10 [ 12.715772] ? __pfx_mempool_alloc_pages+0x10/0x10 [ 12.715794] ? __pfx_mempool_free_pages+0x10/0x10 [ 12.715817] ? __pfx_read_tsc+0x10/0x10 [ 12.715839] ? ktime_get_ts64+0x86/0x230 [ 12.715864] kunit_try_run_case+0x1a5/0x480 [ 12.715889] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.715911] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.715935] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.715958] ? __kthread_parkme+0x82/0x180 [ 12.715979] ? preempt_count_sub+0x50/0x80 [ 12.716002] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.716025] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.716049] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.716071] kthread+0x337/0x6f0 [ 12.716091] ? trace_preempt_on+0x20/0xc0 [ 12.716116] ? __pfx_kthread+0x10/0x10 [ 12.716137] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.716157] ? calculate_sigpending+0x7b/0xa0 [ 12.716205] ? __pfx_kthread+0x10/0x10 [ 12.716228] ret_from_fork+0x116/0x1d0 [ 12.716247] ? __pfx_kthread+0x10/0x10 [ 12.716268] ret_from_fork_asm+0x1a/0x30 [ 12.716300] </TASK> [ 12.716312] [ 12.731798] The buggy address belongs to the physical page: [ 12.732328] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10397c [ 12.733006] flags: 0x200000000000000(node=0|zone=2) [ 12.733199] raw: 0200000000000000 0000000000000000 dead000000000122 0000000000000000 [ 12.733984] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 12.734758] page dumped because: kasan: bad access detected [ 12.734934] [ 12.735006] Memory state around the buggy address: [ 12.735161] ffff88810397bf00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 12.736060] ffff88810397bf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 12.736803] >ffff88810397c000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 12.737599] ^ [ 12.737999] ffff88810397c080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 12.738369] ffff88810397c100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 12.739106] ================================================================== [ 12.647224] ================================================================== [ 12.647714] BUG: KASAN: use-after-free in mempool_uaf_helper+0x392/0x400 [ 12.648021] Read of size 1 at addr ffff888102ab8000 by task kunit_try_catch/246 [ 12.648514] [ 12.648647] CPU: 1 UID: 0 PID: 246 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250513 #1 PREEMPT(voluntary) [ 12.648698] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.648710] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.648733] Call Trace: [ 12.648746] <TASK> [ 12.648762] dump_stack_lvl+0x73/0xb0 [ 12.648792] print_report+0xd1/0x650 [ 12.648815] ? __virt_addr_valid+0x1db/0x2d0 [ 12.648840] ? mempool_uaf_helper+0x392/0x400 [ 12.648862] ? kasan_addr_to_slab+0x11/0xa0 [ 12.648884] ? mempool_uaf_helper+0x392/0x400 [ 12.648906] kasan_report+0x141/0x180 [ 12.648930] ? mempool_uaf_helper+0x392/0x400 [ 12.648958] __asan_report_load1_noabort+0x18/0x20 [ 12.648979] mempool_uaf_helper+0x392/0x400 [ 12.649004] ? __pfx_mempool_uaf_helper+0x10/0x10 [ 12.649030] ? __pfx_sched_clock_cpu+0x10/0x10 [ 12.649052] ? finish_task_switch.isra.0+0x153/0x700 [ 12.649080] mempool_kmalloc_large_uaf+0xef/0x140 [ 12.649104] ? __pfx_mempool_kmalloc_large_uaf+0x10/0x10 [ 12.649132] ? __pfx_mempool_kmalloc+0x10/0x10 [ 12.649152] ? __pfx_mempool_kfree+0x10/0x10 [ 12.649177] ? __pfx_read_tsc+0x10/0x10 [ 12.649200] ? ktime_get_ts64+0x86/0x230 [ 12.649229] kunit_try_run_case+0x1a5/0x480 [ 12.649256] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.649278] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.649302] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.649327] ? __kthread_parkme+0x82/0x180 [ 12.649348] ? preempt_count_sub+0x50/0x80 [ 12.649373] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.649397] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.649420] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.649445] kthread+0x337/0x6f0 [ 12.649465] ? trace_preempt_on+0x20/0xc0 [ 12.649490] ? __pfx_kthread+0x10/0x10 [ 12.649512] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.649532] ? calculate_sigpending+0x7b/0xa0 [ 12.649557] ? __pfx_kthread+0x10/0x10 [ 12.649580] ret_from_fork+0x116/0x1d0 [ 12.649599] ? __pfx_kthread+0x10/0x10 [ 12.649629] ret_from_fork_asm+0x1a/0x30 [ 12.649661] </TASK> [ 12.649673] [ 12.659587] The buggy address belongs to the physical page: [ 12.659873] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102ab8 [ 12.660537] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 12.660865] flags: 0x200000000000040(head|node=0|zone=2) [ 12.661189] page_type: f8(unknown) [ 12.661523] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 12.661925] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 12.662339] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 12.662777] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 12.663234] head: 0200000000000002 ffffea00040aae01 00000000ffffffff 00000000ffffffff [ 12.663669] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 12.664056] page dumped because: kasan: bad access detected [ 12.664376] [ 12.664458] Memory state around the buggy address: [ 12.664847] ffff888102ab7f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 12.665298] ffff888102ab7f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 12.665601] >ffff888102ab8000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 12.665924] ^ [ 12.666084] ffff888102ab8080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 12.666658] ffff888102ab8100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 12.667029] ==================================================================