Date
July 3, 2025, 6:13 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.856535] ================================================================== [ 18.857118] BUG: KASAN: slab-use-after-free in mempool_uaf_helper+0x314/0x340 [ 18.857174] Read of size 1 at addr fff00000c78d5240 by task kunit_try_catch/231 [ 18.857379] [ 18.857743] CPU: 0 UID: 0 PID: 231 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 18.857835] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.857862] Hardware name: linux,dummy-virt (DT) [ 18.858174] Call trace: [ 18.858369] show_stack+0x20/0x38 (C) [ 18.858710] dump_stack_lvl+0x8c/0xd0 [ 18.858761] print_report+0x118/0x608 [ 18.859078] kasan_report+0xdc/0x128 [ 18.859162] __asan_report_load1_noabort+0x20/0x30 [ 18.859219] mempool_uaf_helper+0x314/0x340 [ 18.859266] mempool_slab_uaf+0xc0/0x118 [ 18.859312] kunit_try_run_case+0x170/0x3f0 [ 18.859358] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.859410] kthread+0x328/0x630 [ 18.859449] ret_from_fork+0x10/0x20 [ 18.860374] [ 18.860489] Allocated by task 231: [ 18.860628] kasan_save_stack+0x3c/0x68 [ 18.860881] kasan_save_track+0x20/0x40 [ 18.861255] kasan_save_alloc_info+0x40/0x58 [ 18.861502] __kasan_mempool_unpoison_object+0xbc/0x180 [ 18.861550] remove_element+0x16c/0x1f8 [ 18.861590] mempool_alloc_preallocated+0x58/0xc0 [ 18.861630] mempool_uaf_helper+0xa4/0x340 [ 18.862126] mempool_slab_uaf+0xc0/0x118 [ 18.862506] kunit_try_run_case+0x170/0x3f0 [ 18.862858] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.862967] kthread+0x328/0x630 [ 18.863074] ret_from_fork+0x10/0x20 [ 18.863110] [ 18.863286] Freed by task 231: [ 18.863403] kasan_save_stack+0x3c/0x68 [ 18.863641] kasan_save_track+0x20/0x40 [ 18.864045] kasan_save_free_info+0x4c/0x78 [ 18.864090] __kasan_mempool_poison_object+0xc0/0x150 [ 18.864131] mempool_free+0x28c/0x328 [ 18.864372] mempool_uaf_helper+0x104/0x340 [ 18.864800] mempool_slab_uaf+0xc0/0x118 [ 18.864876] kunit_try_run_case+0x170/0x3f0 [ 18.865039] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.865091] kthread+0x328/0x630 [ 18.865860] ret_from_fork+0x10/0x20 [ 18.865907] [ 18.865929] The buggy address belongs to the object at fff00000c78d5240 [ 18.865929] which belongs to the cache test_cache of size 123 [ 18.865988] The buggy address is located 0 bytes inside of [ 18.865988] freed 123-byte region [fff00000c78d5240, fff00000c78d52bb) [ 18.866316] [ 18.866342] The buggy address belongs to the physical page: [ 18.866371] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1078d5 [ 18.867046] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.867388] page_type: f5(slab) [ 18.867562] raw: 0bfffe0000000000 fff00000c3eaedc0 dead000000000122 0000000000000000 [ 18.867612] raw: 0000000000000000 0000000080150015 00000000f5000000 0000000000000000 [ 18.867652] page dumped because: kasan: bad access detected [ 18.867787] [ 18.867859] Memory state around the buggy address: [ 18.867890] fff00000c78d5100: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 18.868433] fff00000c78d5180: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 18.868537] >fff00000c78d5200: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 18.868712] ^ [ 18.868923] fff00000c78d5280: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 18.868970] fff00000c78d5300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.869007] ================================================================== [ 18.800218] ================================================================== [ 18.800354] BUG: KASAN: slab-use-after-free in mempool_uaf_helper+0x314/0x340 [ 18.800967] Read of size 1 at addr fff00000c78c1b00 by task kunit_try_catch/227 [ 18.801021] [ 18.801917] CPU: 0 UID: 0 PID: 227 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 18.802496] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.802527] Hardware name: linux,dummy-virt (DT) [ 18.802876] Call trace: [ 18.802911] show_stack+0x20/0x38 (C) [ 18.803084] dump_stack_lvl+0x8c/0xd0 [ 18.803250] print_report+0x118/0x608 [ 18.803601] kasan_report+0xdc/0x128 [ 18.803880] __asan_report_load1_noabort+0x20/0x30 [ 18.804287] mempool_uaf_helper+0x314/0x340 [ 18.804737] mempool_kmalloc_uaf+0xc4/0x120 [ 18.804923] kunit_try_run_case+0x170/0x3f0 [ 18.805253] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.805313] kthread+0x328/0x630 [ 18.805356] ret_from_fork+0x10/0x20 [ 18.805669] [ 18.806151] Allocated by task 227: [ 18.806188] kasan_save_stack+0x3c/0x68 [ 18.806232] kasan_save_track+0x20/0x40 [ 18.806269] kasan_save_alloc_info+0x40/0x58 [ 18.806308] __kasan_mempool_unpoison_object+0x11c/0x180 [ 18.806570] remove_element+0x130/0x1f8 [ 18.806763] mempool_alloc_preallocated+0x58/0xc0 [ 18.807248] mempool_uaf_helper+0xa4/0x340 [ 18.807298] mempool_kmalloc_uaf+0xc4/0x120 [ 18.807517] kunit_try_run_case+0x170/0x3f0 [ 18.807557] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.808044] kthread+0x328/0x630 [ 18.808088] ret_from_fork+0x10/0x20 [ 18.808124] [ 18.808578] Freed by task 227: [ 18.808617] kasan_save_stack+0x3c/0x68 [ 18.808978] kasan_save_track+0x20/0x40 [ 18.809023] kasan_save_free_info+0x4c/0x78 [ 18.809236] __kasan_mempool_poison_object+0xc0/0x150 [ 18.809743] mempool_free+0x28c/0x328 [ 18.809829] mempool_uaf_helper+0x104/0x340 [ 18.809876] mempool_kmalloc_uaf+0xc4/0x120 [ 18.809914] kunit_try_run_case+0x170/0x3f0 [ 18.810169] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.810280] kthread+0x328/0x630 [ 18.810459] ret_from_fork+0x10/0x20 [ 18.810796] [ 18.810946] The buggy address belongs to the object at fff00000c78c1b00 [ 18.810946] which belongs to the cache kmalloc-128 of size 128 [ 18.811211] The buggy address is located 0 bytes inside of [ 18.811211] freed 128-byte region [fff00000c78c1b00, fff00000c78c1b80) [ 18.811438] [ 18.811623] The buggy address belongs to the physical page: [ 18.811661] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1078c1 [ 18.812005] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.812246] page_type: f5(slab) [ 18.812723] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 18.812780] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 18.812822] page dumped because: kasan: bad access detected [ 18.813087] [ 18.813109] Memory state around the buggy address: [ 18.813359] fff00000c78c1a00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 18.813406] fff00000c78c1a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.813751] >fff00000c78c1b00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 18.813809] ^ [ 18.813838] fff00000c78c1b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.814154] fff00000c78c1c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 18.814261] ==================================================================
[ 12.938768] ================================================================== [ 12.939281] BUG: KASAN: slab-use-after-free in mempool_uaf_helper+0x392/0x400 [ 12.939678] Read of size 1 at addr ffff888103328f00 by task kunit_try_catch/245 [ 12.939965] [ 12.940130] CPU: 1 UID: 0 PID: 245 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 12.940194] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.940208] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.940230] Call Trace: [ 12.940243] <TASK> [ 12.940260] dump_stack_lvl+0x73/0xb0 [ 12.940289] print_report+0xd1/0x650 [ 12.940331] ? __virt_addr_valid+0x1db/0x2d0 [ 12.940356] ? mempool_uaf_helper+0x392/0x400 [ 12.940389] ? kasan_complete_mode_report_info+0x64/0x200 [ 12.940411] ? mempool_uaf_helper+0x392/0x400 [ 12.940432] kasan_report+0x141/0x180 [ 12.940465] ? mempool_uaf_helper+0x392/0x400 [ 12.940491] __asan_report_load1_noabort+0x18/0x20 [ 12.940515] mempool_uaf_helper+0x392/0x400 [ 12.940536] ? __pfx_mempool_uaf_helper+0x10/0x10 [ 12.940562] ? finish_task_switch.isra.0+0x153/0x700 [ 12.940590] mempool_kmalloc_uaf+0xef/0x140 [ 12.940612] ? __pfx_mempool_kmalloc_uaf+0x10/0x10 [ 12.940637] ? __pfx_mempool_kmalloc+0x10/0x10 [ 12.940661] ? __pfx_mempool_kfree+0x10/0x10 [ 12.940686] ? __pfx_read_tsc+0x10/0x10 [ 12.940707] ? ktime_get_ts64+0x86/0x230 [ 12.940732] kunit_try_run_case+0x1a5/0x480 [ 12.940757] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.940789] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.940813] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.940836] ? __kthread_parkme+0x82/0x180 [ 12.940868] ? preempt_count_sub+0x50/0x80 [ 12.940891] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.940914] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.940936] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.940959] kthread+0x337/0x6f0 [ 12.940979] ? trace_preempt_on+0x20/0xc0 [ 12.941008] ? __pfx_kthread+0x10/0x10 [ 12.941029] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.941050] ? calculate_sigpending+0x7b/0xa0 [ 12.941075] ? __pfx_kthread+0x10/0x10 [ 12.941097] ret_from_fork+0x116/0x1d0 [ 12.941123] ? __pfx_kthread+0x10/0x10 [ 12.941144] ret_from_fork_asm+0x1a/0x30 [ 12.941174] </TASK> [ 12.941186] [ 12.949004] Allocated by task 245: [ 12.949206] kasan_save_stack+0x45/0x70 [ 12.949433] kasan_save_track+0x18/0x40 [ 12.949621] kasan_save_alloc_info+0x3b/0x50 [ 12.949790] __kasan_mempool_unpoison_object+0x1a9/0x200 [ 12.950054] remove_element+0x11e/0x190 [ 12.950249] mempool_alloc_preallocated+0x4d/0x90 [ 12.950478] mempool_uaf_helper+0x96/0x400 [ 12.950669] mempool_kmalloc_uaf+0xef/0x140 [ 12.950895] kunit_try_run_case+0x1a5/0x480 [ 12.951118] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.951387] kthread+0x337/0x6f0 [ 12.951573] ret_from_fork+0x116/0x1d0 [ 12.951776] ret_from_fork_asm+0x1a/0x30 [ 12.951973] [ 12.952065] Freed by task 245: [ 12.952217] kasan_save_stack+0x45/0x70 [ 12.952383] kasan_save_track+0x18/0x40 [ 12.952521] kasan_save_free_info+0x3f/0x60 [ 12.952670] __kasan_mempool_poison_object+0x131/0x1d0 [ 12.952904] mempool_free+0x2ec/0x380 [ 12.953118] mempool_uaf_helper+0x11a/0x400 [ 12.953340] mempool_kmalloc_uaf+0xef/0x140 [ 12.953551] kunit_try_run_case+0x1a5/0x480 [ 12.953719] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.953895] kthread+0x337/0x6f0 [ 12.954018] ret_from_fork+0x116/0x1d0 [ 12.954183] ret_from_fork_asm+0x1a/0x30 [ 12.954413] [ 12.954531] The buggy address belongs to the object at ffff888103328f00 [ 12.954531] which belongs to the cache kmalloc-128 of size 128 [ 12.955092] The buggy address is located 0 bytes inside of [ 12.955092] freed 128-byte region [ffff888103328f00, ffff888103328f80) [ 12.955657] [ 12.955743] The buggy address belongs to the physical page: [ 12.955992] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103328 [ 12.956344] flags: 0x200000000000000(node=0|zone=2) [ 12.956540] page_type: f5(slab) [ 12.956713] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 12.957012] raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 [ 12.957429] page dumped because: kasan: bad access detected [ 12.957670] [ 12.957777] Memory state around the buggy address: [ 12.957961] ffff888103328e00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.958211] ffff888103328e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.958562] >ffff888103328f00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.958877] ^ [ 12.959006] ffff888103328f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.959358] ffff888103329000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.959687] ================================================================== [ 12.994644] ================================================================== [ 12.995687] BUG: KASAN: slab-use-after-free in mempool_uaf_helper+0x392/0x400 [ 12.995995] Read of size 1 at addr ffff88810334b240 by task kunit_try_catch/249 [ 12.996256] [ 12.996472] CPU: 1 UID: 0 PID: 249 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 12.996516] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.996529] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.996550] Call Trace: [ 12.996562] <TASK> [ 12.996578] dump_stack_lvl+0x73/0xb0 [ 12.996609] print_report+0xd1/0x650 [ 12.996634] ? __virt_addr_valid+0x1db/0x2d0 [ 12.996658] ? mempool_uaf_helper+0x392/0x400 [ 12.996679] ? kasan_complete_mode_report_info+0x64/0x200 [ 12.996700] ? mempool_uaf_helper+0x392/0x400 [ 12.996722] kasan_report+0x141/0x180 [ 12.996743] ? mempool_uaf_helper+0x392/0x400 [ 12.996769] __asan_report_load1_noabort+0x18/0x20 [ 12.996793] mempool_uaf_helper+0x392/0x400 [ 12.996816] ? __pfx_mempool_uaf_helper+0x10/0x10 [ 12.996840] ? __pfx_sched_clock_cpu+0x10/0x10 [ 12.996863] ? finish_task_switch.isra.0+0x153/0x700 [ 12.996889] mempool_slab_uaf+0xea/0x140 [ 12.996912] ? __pfx_mempool_slab_uaf+0x10/0x10 [ 12.996936] ? __pfx_mempool_alloc_slab+0x10/0x10 [ 12.996956] ? __pfx_mempool_free_slab+0x10/0x10 [ 12.996978] ? __pfx_read_tsc+0x10/0x10 [ 12.997000] ? ktime_get_ts64+0x86/0x230 [ 12.997023] kunit_try_run_case+0x1a5/0x480 [ 12.997049] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.997071] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.997094] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.997129] ? __kthread_parkme+0x82/0x180 [ 12.997150] ? preempt_count_sub+0x50/0x80 [ 12.997207] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.997230] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.997252] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.997275] kthread+0x337/0x6f0 [ 12.997293] ? trace_preempt_on+0x20/0xc0 [ 12.997321] ? __pfx_kthread+0x10/0x10 [ 12.997342] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.997362] ? calculate_sigpending+0x7b/0xa0 [ 12.997386] ? __pfx_kthread+0x10/0x10 [ 12.997407] ret_from_fork+0x116/0x1d0 [ 12.997424] ? __pfx_kthread+0x10/0x10 [ 12.997444] ret_from_fork_asm+0x1a/0x30 [ 12.997475] </TASK> [ 12.997486] [ 13.012840] Allocated by task 249: [ 13.013036] kasan_save_stack+0x45/0x70 [ 13.013330] kasan_save_track+0x18/0x40 [ 13.013740] kasan_save_alloc_info+0x3b/0x50 [ 13.014143] __kasan_mempool_unpoison_object+0x1bb/0x200 [ 13.014531] remove_element+0x11e/0x190 [ 13.014876] mempool_alloc_preallocated+0x4d/0x90 [ 13.015035] mempool_uaf_helper+0x96/0x400 [ 13.015307] mempool_slab_uaf+0xea/0x140 [ 13.015758] kunit_try_run_case+0x1a5/0x480 [ 13.016223] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.016757] kthread+0x337/0x6f0 [ 13.017071] ret_from_fork+0x116/0x1d0 [ 13.017340] ret_from_fork_asm+0x1a/0x30 [ 13.017483] [ 13.017555] Freed by task 249: [ 13.017670] kasan_save_stack+0x45/0x70 [ 13.017807] kasan_save_track+0x18/0x40 [ 13.017944] kasan_save_free_info+0x3f/0x60 [ 13.018091] __kasan_mempool_poison_object+0x131/0x1d0 [ 13.018543] mempool_free+0x2ec/0x380 [ 13.018867] mempool_uaf_helper+0x11a/0x400 [ 13.019299] mempool_slab_uaf+0xea/0x140 [ 13.019743] kunit_try_run_case+0x1a5/0x480 [ 13.020140] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.020745] kthread+0x337/0x6f0 [ 13.021062] ret_from_fork+0x116/0x1d0 [ 13.021444] ret_from_fork_asm+0x1a/0x30 [ 13.021905] [ 13.022143] The buggy address belongs to the object at ffff88810334b240 [ 13.022143] which belongs to the cache test_cache of size 123 [ 13.023424] The buggy address is located 0 bytes inside of [ 13.023424] freed 123-byte region [ffff88810334b240, ffff88810334b2bb) [ 13.024010] [ 13.024088] The buggy address belongs to the physical page: [ 13.024552] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10334b [ 13.025533] flags: 0x200000000000000(node=0|zone=2) [ 13.025975] page_type: f5(slab) [ 13.026387] raw: 0200000000000000 ffff888101849a00 dead000000000122 0000000000000000 [ 13.026935] raw: 0000000000000000 0000000080150015 00000000f5000000 0000000000000000 [ 13.027277] page dumped because: kasan: bad access detected [ 13.027867] [ 13.028081] Memory state around the buggy address: [ 13.028619] ffff88810334b100: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 13.029326] ffff88810334b180: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 13.029576] >ffff88810334b200: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 13.029793] ^ [ 13.029963] ffff88810334b280: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 13.030197] ffff88810334b300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.030644] ==================================================================