Date
July 9, 2025, 12:11 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 21.637338] ================================================================== [ 21.637429] BUG: KASAN: slab-use-after-free in mempool_uaf_helper+0x314/0x340 [ 21.637808] Read of size 1 at addr fff00000c64b5a00 by task kunit_try_catch/228 [ 21.637871] [ 21.638169] CPU: 1 UID: 0 PID: 228 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 21.638333] Tainted: [B]=BAD_PAGE, [N]=TEST [ 21.638363] Hardware name: linux,dummy-virt (DT) [ 21.638408] Call trace: [ 21.638434] show_stack+0x20/0x38 (C) [ 21.638498] dump_stack_lvl+0x8c/0xd0 [ 21.638690] print_report+0x118/0x608 [ 21.638912] kasan_report+0xdc/0x128 [ 21.638967] __asan_report_load1_noabort+0x20/0x30 [ 21.639019] mempool_uaf_helper+0x314/0x340 [ 21.639334] mempool_kmalloc_uaf+0xc4/0x120 [ 21.639474] kunit_try_run_case+0x170/0x3f0 [ 21.639560] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.639616] kthread+0x328/0x630 [ 21.639791] ret_from_fork+0x10/0x20 [ 21.639844] [ 21.639863] Allocated by task 228: [ 21.640063] kasan_save_stack+0x3c/0x68 [ 21.640164] kasan_save_track+0x20/0x40 [ 21.640212] kasan_save_alloc_info+0x40/0x58 [ 21.640280] __kasan_mempool_unpoison_object+0x11c/0x180 [ 21.640638] remove_element+0x130/0x1f8 [ 21.640758] mempool_alloc_preallocated+0x58/0xc0 [ 21.640833] mempool_uaf_helper+0xa4/0x340 [ 21.640956] mempool_kmalloc_uaf+0xc4/0x120 [ 21.640997] kunit_try_run_case+0x170/0x3f0 [ 21.641180] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.641387] kthread+0x328/0x630 [ 21.641486] ret_from_fork+0x10/0x20 [ 21.641563] [ 21.641613] Freed by task 228: [ 21.642026] kasan_save_stack+0x3c/0x68 [ 21.642166] kasan_save_track+0x20/0x40 [ 21.642208] kasan_save_free_info+0x4c/0x78 [ 21.642440] __kasan_mempool_poison_object+0xc0/0x150 [ 21.642607] mempool_free+0x28c/0x328 [ 21.642674] mempool_uaf_helper+0x104/0x340 [ 21.642749] mempool_kmalloc_uaf+0xc4/0x120 [ 21.642813] kunit_try_run_case+0x170/0x3f0 [ 21.642873] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.642927] kthread+0x328/0x630 [ 21.642960] ret_from_fork+0x10/0x20 [ 21.643007] [ 21.643028] The buggy address belongs to the object at fff00000c64b5a00 [ 21.643028] which belongs to the cache kmalloc-128 of size 128 [ 21.643100] The buggy address is located 0 bytes inside of [ 21.643100] freed 128-byte region [fff00000c64b5a00, fff00000c64b5a80) [ 21.643176] [ 21.643207] The buggy address belongs to the physical page: [ 21.643240] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1064b5 [ 21.643296] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 21.643354] page_type: f5(slab) [ 21.643416] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 21.643475] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 21.643518] page dumped because: kasan: bad access detected [ 21.643559] [ 21.643577] Memory state around the buggy address: [ 21.643617] fff00000c64b5900: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 21.643678] fff00000c64b5980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.643731] >fff00000c64b5a00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 21.643769] ^ [ 21.643796] fff00000c64b5a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.643838] fff00000c64b5b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 21.643877] ================================================================== [ 21.677748] ================================================================== [ 21.677860] BUG: KASAN: slab-use-after-free in mempool_uaf_helper+0x314/0x340 [ 21.677922] Read of size 1 at addr fff00000c6e92240 by task kunit_try_catch/232 [ 21.678260] [ 21.678347] CPU: 1 UID: 0 PID: 232 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 21.678450] Tainted: [B]=BAD_PAGE, [N]=TEST [ 21.678635] Hardware name: linux,dummy-virt (DT) [ 21.678877] Call trace: [ 21.678935] show_stack+0x20/0x38 (C) [ 21.679010] dump_stack_lvl+0x8c/0xd0 [ 21.679066] print_report+0x118/0x608 [ 21.679227] kasan_report+0xdc/0x128 [ 21.679288] __asan_report_load1_noabort+0x20/0x30 [ 21.679548] mempool_uaf_helper+0x314/0x340 [ 21.679613] mempool_slab_uaf+0xc0/0x118 [ 21.679687] kunit_try_run_case+0x170/0x3f0 [ 21.679981] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.680118] kthread+0x328/0x630 [ 21.680187] ret_from_fork+0x10/0x20 [ 21.680417] [ 21.680449] Allocated by task 232: [ 21.680688] kasan_save_stack+0x3c/0x68 [ 21.680778] kasan_save_track+0x20/0x40 [ 21.680901] kasan_save_alloc_info+0x40/0x58 [ 21.680978] __kasan_mempool_unpoison_object+0xbc/0x180 [ 21.681032] remove_element+0x16c/0x1f8 [ 21.681233] mempool_alloc_preallocated+0x58/0xc0 [ 21.681454] mempool_uaf_helper+0xa4/0x340 [ 21.681571] mempool_slab_uaf+0xc0/0x118 [ 21.681622] kunit_try_run_case+0x170/0x3f0 [ 21.681709] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.682039] kthread+0x328/0x630 [ 21.682174] ret_from_fork+0x10/0x20 [ 21.682233] [ 21.682393] Freed by task 232: [ 21.682595] kasan_save_stack+0x3c/0x68 [ 21.682730] kasan_save_track+0x20/0x40 [ 21.682785] kasan_save_free_info+0x4c/0x78 [ 21.682853] __kasan_mempool_poison_object+0xc0/0x150 [ 21.683079] mempool_free+0x28c/0x328 [ 21.683284] mempool_uaf_helper+0x104/0x340 [ 21.683343] mempool_slab_uaf+0xc0/0x118 [ 21.683561] kunit_try_run_case+0x170/0x3f0 [ 21.683809] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.683953] kthread+0x328/0x630 [ 21.684050] ret_from_fork+0x10/0x20 [ 21.684100] [ 21.684122] The buggy address belongs to the object at fff00000c6e92240 [ 21.684122] which belongs to the cache test_cache of size 123 [ 21.684183] The buggy address is located 0 bytes inside of [ 21.684183] freed 123-byte region [fff00000c6e92240, fff00000c6e922bb) [ 21.684244] [ 21.684540] The buggy address belongs to the physical page: [ 21.684686] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106e92 [ 21.684758] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 21.685096] page_type: f5(slab) [ 21.685425] raw: 0bfffe0000000000 fff00000c471ab40 dead000000000122 0000000000000000 [ 21.685535] raw: 0000000000000000 0000000080150015 00000000f5000000 0000000000000000 [ 21.685897] page dumped because: kasan: bad access detected [ 21.685949] [ 21.685969] Memory state around the buggy address: [ 21.686131] fff00000c6e92100: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 21.686216] fff00000c6e92180: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 21.686393] >fff00000c6e92200: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 21.686802] ^ [ 21.686890] fff00000c6e92280: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 21.686951] fff00000c6e92300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.686991] ==================================================================
[ 14.242873] ================================================================== [ 14.243382] BUG: KASAN: slab-use-after-free in mempool_uaf_helper+0x392/0x400 [ 14.243721] Read of size 1 at addr ffff888102abe240 by task kunit_try_catch/248 [ 14.244030] [ 14.244401] CPU: 1 UID: 0 PID: 248 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 14.244451] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.244463] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.244485] Call Trace: [ 14.244496] <TASK> [ 14.244515] dump_stack_lvl+0x73/0xb0 [ 14.244547] print_report+0xd1/0x650 [ 14.244571] ? __virt_addr_valid+0x1db/0x2d0 [ 14.244595] ? mempool_uaf_helper+0x392/0x400 [ 14.244617] ? kasan_complete_mode_report_info+0x64/0x200 [ 14.244641] ? mempool_uaf_helper+0x392/0x400 [ 14.244663] kasan_report+0x141/0x180 [ 14.244685] ? mempool_uaf_helper+0x392/0x400 [ 14.244711] __asan_report_load1_noabort+0x18/0x20 [ 14.244736] mempool_uaf_helper+0x392/0x400 [ 14.244759] ? __pfx_mempool_uaf_helper+0x10/0x10 [ 14.244789] mempool_slab_uaf+0xea/0x140 [ 14.244812] ? __pfx_mempool_slab_uaf+0x10/0x10 [ 14.244835] ? schedule+0x7c/0x2e0 [ 14.244857] ? __pfx_mempool_alloc_slab+0x10/0x10 [ 14.244882] ? __pfx_mempool_free_slab+0x10/0x10 [ 14.244909] ? __pfx_read_tsc+0x10/0x10 [ 14.244946] ? ktime_get_ts64+0x86/0x230 [ 14.244991] kunit_try_run_case+0x1a5/0x480 [ 14.245017] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.245041] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 14.245068] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 14.245093] ? __kthread_parkme+0x82/0x180 [ 14.245116] ? preempt_count_sub+0x50/0x80 [ 14.245140] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.245164] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.245189] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.245214] kthread+0x337/0x6f0 [ 14.245234] ? trace_preempt_on+0x20/0xc0 [ 14.245258] ? __pfx_kthread+0x10/0x10 [ 14.245279] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.245301] ? calculate_sigpending+0x7b/0xa0 [ 14.245325] ? __pfx_kthread+0x10/0x10 [ 14.245346] ret_from_fork+0x116/0x1d0 [ 14.245382] ? __pfx_kthread+0x10/0x10 [ 14.245403] ret_from_fork_asm+0x1a/0x30 [ 14.245434] </TASK> [ 14.245445] [ 14.260918] Allocated by task 248: [ 14.261098] kasan_save_stack+0x45/0x70 [ 14.261256] kasan_save_track+0x18/0x40 [ 14.261454] kasan_save_alloc_info+0x3b/0x50 [ 14.261659] __kasan_mempool_unpoison_object+0x1bb/0x200 [ 14.261834] remove_element+0x11e/0x190 [ 14.262015] mempool_alloc_preallocated+0x4d/0x90 [ 14.262250] mempool_uaf_helper+0x96/0x400 [ 14.262604] mempool_slab_uaf+0xea/0x140 [ 14.262810] kunit_try_run_case+0x1a5/0x480 [ 14.263012] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.263189] kthread+0x337/0x6f0 [ 14.263343] ret_from_fork+0x116/0x1d0 [ 14.263531] ret_from_fork_asm+0x1a/0x30 [ 14.263742] [ 14.263835] Freed by task 248: [ 14.264001] kasan_save_stack+0x45/0x70 [ 14.264149] kasan_save_track+0x18/0x40 [ 14.264414] kasan_save_free_info+0x3f/0x60 [ 14.264571] __kasan_mempool_poison_object+0x131/0x1d0 [ 14.264741] mempool_free+0x2ec/0x380 [ 14.264919] mempool_uaf_helper+0x11a/0x400 [ 14.265130] mempool_slab_uaf+0xea/0x140 [ 14.265322] kunit_try_run_case+0x1a5/0x480 [ 14.265532] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.265762] kthread+0x337/0x6f0 [ 14.265878] ret_from_fork+0x116/0x1d0 [ 14.266035] ret_from_fork_asm+0x1a/0x30 [ 14.266233] [ 14.266327] The buggy address belongs to the object at ffff888102abe240 [ 14.266327] which belongs to the cache test_cache of size 123 [ 14.267272] The buggy address is located 0 bytes inside of [ 14.267272] freed 123-byte region [ffff888102abe240, ffff888102abe2bb) [ 14.267794] [ 14.267905] The buggy address belongs to the physical page: [ 14.268213] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102abe [ 14.268567] flags: 0x200000000000000(node=0|zone=2) [ 14.268768] page_type: f5(slab) [ 14.268951] raw: 0200000000000000 ffff888100929c80 dead000000000122 0000000000000000 [ 14.269252] raw: 0000000000000000 0000000080150015 00000000f5000000 0000000000000000 [ 14.269470] page dumped because: kasan: bad access detected [ 14.269709] [ 14.269802] Memory state around the buggy address: [ 14.270041] ffff888102abe100: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 14.270296] ffff888102abe180: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 14.270498] >ffff888102abe200: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 14.271276] ^ [ 14.271537] ffff888102abe280: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 14.271755] ffff888102abe300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.271992] ================================================================== [ 14.183840] ================================================================== [ 14.184940] BUG: KASAN: slab-use-after-free in mempool_uaf_helper+0x392/0x400 [ 14.185811] Read of size 1 at addr ffff888102ab9400 by task kunit_try_catch/244 [ 14.186680] [ 14.186791] CPU: 1 UID: 0 PID: 244 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 14.186839] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.186852] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.186875] Call Trace: [ 14.186889] <TASK> [ 14.186909] dump_stack_lvl+0x73/0xb0 [ 14.186954] print_report+0xd1/0x650 [ 14.186977] ? __virt_addr_valid+0x1db/0x2d0 [ 14.187002] ? mempool_uaf_helper+0x392/0x400 [ 14.187051] ? kasan_complete_mode_report_info+0x64/0x200 [ 14.187076] ? mempool_uaf_helper+0x392/0x400 [ 14.187234] kasan_report+0x141/0x180 [ 14.187437] ? mempool_uaf_helper+0x392/0x400 [ 14.187466] __asan_report_load1_noabort+0x18/0x20 [ 14.187493] mempool_uaf_helper+0x392/0x400 [ 14.187516] ? __pfx_mempool_uaf_helper+0x10/0x10 [ 14.187541] ? __kasan_check_write+0x18/0x20 [ 14.187561] ? __pfx_sched_clock_cpu+0x10/0x10 [ 14.187587] ? finish_task_switch.isra.0+0x153/0x700 [ 14.187614] mempool_kmalloc_uaf+0xef/0x140 [ 14.187637] ? __pfx_mempool_kmalloc_uaf+0x10/0x10 [ 14.187663] ? __pfx_mempool_kmalloc+0x10/0x10 [ 14.187688] ? __pfx_mempool_kfree+0x10/0x10 [ 14.187712] ? __pfx_read_tsc+0x10/0x10 [ 14.187735] ? ktime_get_ts64+0x86/0x230 [ 14.187760] kunit_try_run_case+0x1a5/0x480 [ 14.187785] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.187808] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 14.187833] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 14.187857] ? __kthread_parkme+0x82/0x180 [ 14.187878] ? preempt_count_sub+0x50/0x80 [ 14.187901] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.187925] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.187999] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.188025] kthread+0x337/0x6f0 [ 14.188044] ? trace_preempt_on+0x20/0xc0 [ 14.188068] ? __pfx_kthread+0x10/0x10 [ 14.188088] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.188110] ? calculate_sigpending+0x7b/0xa0 [ 14.188135] ? __pfx_kthread+0x10/0x10 [ 14.188156] ret_from_fork+0x116/0x1d0 [ 14.188174] ? __pfx_kthread+0x10/0x10 [ 14.188195] ret_from_fork_asm+0x1a/0x30 [ 14.188225] </TASK> [ 14.188238] [ 14.199527] Allocated by task 244: [ 14.199730] kasan_save_stack+0x45/0x70 [ 14.199898] kasan_save_track+0x18/0x40 [ 14.200048] kasan_save_alloc_info+0x3b/0x50 [ 14.200198] __kasan_mempool_unpoison_object+0x1a9/0x200 [ 14.200446] remove_element+0x11e/0x190 [ 14.200698] mempool_alloc_preallocated+0x4d/0x90 [ 14.200926] mempool_uaf_helper+0x96/0x400 [ 14.201141] mempool_kmalloc_uaf+0xef/0x140 [ 14.201437] kunit_try_run_case+0x1a5/0x480 [ 14.201646] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.201844] kthread+0x337/0x6f0 [ 14.202081] ret_from_fork+0x116/0x1d0 [ 14.202289] ret_from_fork_asm+0x1a/0x30 [ 14.202508] [ 14.202600] Freed by task 244: [ 14.202763] kasan_save_stack+0x45/0x70 [ 14.202927] kasan_save_track+0x18/0x40 [ 14.203207] kasan_save_free_info+0x3f/0x60 [ 14.203394] __kasan_mempool_poison_object+0x131/0x1d0 [ 14.203564] mempool_free+0x2ec/0x380 [ 14.203695] mempool_uaf_helper+0x11a/0x400 [ 14.203898] mempool_kmalloc_uaf+0xef/0x140 [ 14.204135] kunit_try_run_case+0x1a5/0x480 [ 14.204546] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.204780] kthread+0x337/0x6f0 [ 14.204901] ret_from_fork+0x116/0x1d0 [ 14.205310] ret_from_fork_asm+0x1a/0x30 [ 14.205494] [ 14.205565] The buggy address belongs to the object at ffff888102ab9400 [ 14.205565] which belongs to the cache kmalloc-128 of size 128 [ 14.206209] The buggy address is located 0 bytes inside of [ 14.206209] freed 128-byte region [ffff888102ab9400, ffff888102ab9480) [ 14.206873] [ 14.206960] The buggy address belongs to the physical page: [ 14.207132] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102ab9 [ 14.207462] flags: 0x200000000000000(node=0|zone=2) [ 14.207733] page_type: f5(slab) [ 14.207908] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 14.208270] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 14.208726] page dumped because: kasan: bad access detected [ 14.209032] [ 14.209108] Memory state around the buggy address: [ 14.209265] ffff888102ab9300: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 14.209586] ffff888102ab9380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.210083] >ffff888102ab9400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 14.210313] ^ [ 14.210432] ffff888102ab9480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.210756] ffff888102ab9500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 14.211220] ==================================================================