Date
July 1, 2025, 11:08 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 20.635312] ================================================================== [ 20.635989] BUG: KASAN: use-after-free in mempool_uaf_helper+0x314/0x340 [ 20.636195] Read of size 1 at addr fff00000c784c000 by task kunit_try_catch/230 [ 20.636343] [ 20.636399] CPU: 0 UID: 0 PID: 230 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 20.636493] Tainted: [B]=BAD_PAGE, [N]=TEST [ 20.636525] Hardware name: linux,dummy-virt (DT) [ 20.636565] Call trace: [ 20.636592] show_stack+0x20/0x38 (C) [ 20.636743] dump_stack_lvl+0x8c/0xd0 [ 20.636799] print_report+0x118/0x608 [ 20.636850] kasan_report+0xdc/0x128 [ 20.637056] __asan_report_load1_noabort+0x20/0x30 [ 20.637206] mempool_uaf_helper+0x314/0x340 [ 20.637258] mempool_kmalloc_large_uaf+0xc4/0x120 [ 20.637320] kunit_try_run_case+0x170/0x3f0 [ 20.637374] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.637581] kthread+0x328/0x630 [ 20.637708] ret_from_fork+0x10/0x20 [ 20.637812] [ 20.637915] The buggy address belongs to the physical page: [ 20.637956] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10784c [ 20.638081] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 20.638155] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 20.638240] page_type: f8(unknown) [ 20.638293] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 20.638771] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 20.638936] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 20.639065] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 20.639304] head: 0bfffe0000000002 ffffc1ffc31e1301 00000000ffffffff 00000000ffffffff [ 20.639438] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 20.639656] page dumped because: kasan: bad access detected [ 20.639700] [ 20.639722] Memory state around the buggy address: [ 20.639802] fff00000c784bf00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 20.639997] fff00000c784bf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 20.640252] >fff00000c784c000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 20.640377] ^ [ 20.640564] fff00000c784c080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 20.640647] fff00000c784c100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 20.640926] ================================================================== [ 20.710584] ================================================================== [ 20.710709] BUG: KASAN: use-after-free in mempool_uaf_helper+0x314/0x340 [ 20.710911] Read of size 1 at addr fff00000c784c000 by task kunit_try_catch/234 [ 20.711025] [ 20.711439] CPU: 0 UID: 0 PID: 234 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 20.711656] Tainted: [B]=BAD_PAGE, [N]=TEST [ 20.711833] Hardware name: linux,dummy-virt (DT) [ 20.711938] Call trace: [ 20.712098] show_stack+0x20/0x38 (C) [ 20.712353] dump_stack_lvl+0x8c/0xd0 [ 20.712728] print_report+0x118/0x608 [ 20.712934] kasan_report+0xdc/0x128 [ 20.713219] __asan_report_load1_noabort+0x20/0x30 [ 20.713476] mempool_uaf_helper+0x314/0x340 [ 20.713701] mempool_page_alloc_uaf+0xc0/0x118 [ 20.714097] kunit_try_run_case+0x170/0x3f0 [ 20.714325] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.714492] kthread+0x328/0x630 [ 20.714563] ret_from_fork+0x10/0x20 [ 20.715039] [ 20.715101] The buggy address belongs to the physical page: [ 20.715190] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10784c [ 20.715399] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 20.715604] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 20.715682] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 20.715730] page dumped because: kasan: bad access detected [ 20.715902] [ 20.715926] Memory state around the buggy address: [ 20.716361] fff00000c784bf00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 20.716496] fff00000c784bf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 20.716685] >fff00000c784c000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 20.716871] ^ [ 20.716975] fff00000c784c080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 20.717031] fff00000c784c100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 20.717220] ==================================================================
[ 13.067672] ================================================================== [ 13.068160] BUG: KASAN: use-after-free in mempool_uaf_helper+0x392/0x400 [ 13.068488] Read of size 1 at addr ffff888102bfc000 by task kunit_try_catch/246 [ 13.068793] [ 13.068912] CPU: 0 UID: 0 PID: 246 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 13.068960] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.068972] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.068995] Call Trace: [ 13.069009] <TASK> [ 13.069026] dump_stack_lvl+0x73/0xb0 [ 13.069054] print_report+0xd1/0x650 [ 13.069077] ? __virt_addr_valid+0x1db/0x2d0 [ 13.069099] ? mempool_uaf_helper+0x392/0x400 [ 13.069120] ? kasan_addr_to_slab+0x11/0xa0 [ 13.069142] ? mempool_uaf_helper+0x392/0x400 [ 13.069163] kasan_report+0x141/0x180 [ 13.069184] ? mempool_uaf_helper+0x392/0x400 [ 13.069210] __asan_report_load1_noabort+0x18/0x20 [ 13.069234] mempool_uaf_helper+0x392/0x400 [ 13.069256] ? __pfx_mempool_uaf_helper+0x10/0x10 [ 13.069279] ? __pfx_sched_clock_cpu+0x10/0x10 [ 13.069300] ? finish_task_switch.isra.0+0x153/0x700 [ 13.069324] mempool_kmalloc_large_uaf+0xef/0x140 [ 13.069346] ? __pfx_mempool_kmalloc_large_uaf+0x10/0x10 [ 13.069371] ? __pfx_mempool_kmalloc+0x10/0x10 [ 13.070614] ? __pfx_mempool_kfree+0x10/0x10 [ 13.070643] ? __pfx_read_tsc+0x10/0x10 [ 13.070666] ? ktime_get_ts64+0x86/0x230 [ 13.070690] kunit_try_run_case+0x1a5/0x480 [ 13.070716] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.070738] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.070763] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.070786] ? __kthread_parkme+0x82/0x180 [ 13.070806] ? preempt_count_sub+0x50/0x80 [ 13.070828] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.070851] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.070874] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.070897] kthread+0x337/0x6f0 [ 13.070926] ? trace_preempt_on+0x20/0xc0 [ 13.070950] ? __pfx_kthread+0x10/0x10 [ 13.070970] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.070990] ? calculate_sigpending+0x7b/0xa0 [ 13.071013] ? __pfx_kthread+0x10/0x10 [ 13.071033] ret_from_fork+0x116/0x1d0 [ 13.071051] ? __pfx_kthread+0x10/0x10 [ 13.071072] ret_from_fork_asm+0x1a/0x30 [ 13.071103] </TASK> [ 13.071115] [ 13.088023] The buggy address belongs to the physical page: [ 13.088403] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102bfc [ 13.088693] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 13.089451] flags: 0x200000000000040(head|node=0|zone=2) [ 13.090005] page_type: f8(unknown) [ 13.090458] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 13.091264] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 13.091710] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 13.092146] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 13.092401] head: 0200000000000002 ffffea00040aff01 00000000ffffffff 00000000ffffffff [ 13.092646] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 13.093110] page dumped because: kasan: bad access detected [ 13.093326] [ 13.093438] Memory state around the buggy address: [ 13.093673] ffff888102bfbf00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.093997] ffff888102bfbf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.094232] >ffff888102bfc000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.094514] ^ [ 13.094632] ffff888102bfc080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.095092] ffff888102bfc100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.095363] ================================================================== [ 13.137894] ================================================================== [ 13.138317] BUG: KASAN: use-after-free in mempool_uaf_helper+0x392/0x400 [ 13.138586] Read of size 1 at addr ffff888103980000 by task kunit_try_catch/250 [ 13.139639] [ 13.139843] CPU: 0 UID: 0 PID: 250 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 13.139894] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.139907] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.139929] Call Trace: [ 13.139942] <TASK> [ 13.139963] dump_stack_lvl+0x73/0xb0 [ 13.139996] print_report+0xd1/0x650 [ 13.140020] ? __virt_addr_valid+0x1db/0x2d0 [ 13.140045] ? mempool_uaf_helper+0x392/0x400 [ 13.140067] ? kasan_addr_to_slab+0x11/0xa0 [ 13.140087] ? mempool_uaf_helper+0x392/0x400 [ 13.140109] kasan_report+0x141/0x180 [ 13.140130] ? mempool_uaf_helper+0x392/0x400 [ 13.140156] __asan_report_load1_noabort+0x18/0x20 [ 13.140180] mempool_uaf_helper+0x392/0x400 [ 13.140202] ? __pfx_mempool_uaf_helper+0x10/0x10 [ 13.140225] ? __kasan_check_write+0x18/0x20 [ 13.140243] ? __pfx_sched_clock_cpu+0x10/0x10 [ 13.140266] ? finish_task_switch.isra.0+0x153/0x700 [ 13.140292] mempool_page_alloc_uaf+0xed/0x140 [ 13.140314] ? __pfx_mempool_page_alloc_uaf+0x10/0x10 [ 13.140341] ? __pfx_mempool_alloc_pages+0x10/0x10 [ 13.140362] ? __pfx_mempool_free_pages+0x10/0x10 [ 13.140403] ? __pfx_read_tsc+0x10/0x10 [ 13.140425] ? ktime_get_ts64+0x86/0x230 [ 13.140449] kunit_try_run_case+0x1a5/0x480 [ 13.140476] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.140498] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.140522] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.140544] ? __kthread_parkme+0x82/0x180 [ 13.140566] ? preempt_count_sub+0x50/0x80 [ 13.140588] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.140610] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.140632] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.140656] kthread+0x337/0x6f0 [ 13.140675] ? trace_preempt_on+0x20/0xc0 [ 13.140698] ? __pfx_kthread+0x10/0x10 [ 13.140718] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.140738] ? calculate_sigpending+0x7b/0xa0 [ 13.140761] ? __pfx_kthread+0x10/0x10 [ 13.140782] ret_from_fork+0x116/0x1d0 [ 13.140799] ? __pfx_kthread+0x10/0x10 [ 13.140818] ret_from_fork_asm+0x1a/0x30 [ 13.140876] </TASK> [ 13.140889] [ 13.156455] The buggy address belongs to the physical page: [ 13.157020] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103980 [ 13.157274] flags: 0x200000000000000(node=0|zone=2) [ 13.157470] raw: 0200000000000000 0000000000000000 dead000000000122 0000000000000000 [ 13.157897] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 13.158673] page dumped because: kasan: bad access detected [ 13.159256] [ 13.159534] Memory state around the buggy address: [ 13.159999] ffff88810397ff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.160707] ffff88810397ff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.161424] >ffff888103980000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.161831] ^ [ 13.162021] ffff888103980080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.162670] ffff888103980100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.163289] ==================================================================