Date
July 4, 2025, 3:11 p.m.
| Environment | |
|---|---|
| e850-96 | |
| qemu-arm64 | |
| qemu-x86_64 |
[ 31.583820] ================================================================== [ 31.584004] BUG: KASAN: double-free in kmem_cache_double_free+0x190/0x3c8 [ 31.584131] Free of addr ffff0008018ea000 by task kunit_try_catch/258 [ 31.585533] [ 31.587018] CPU: 2 UID: 0 PID: 258 Comm: kunit_try_catch Tainted: G B N 6.15.5-rc2 #1 PREEMPT [ 31.587074] Tainted: [B]=BAD_PAGE, [N]=TEST [ 31.587091] Hardware name: WinLink E850-96 board (DT) [ 31.587111] Call trace: [ 31.587123] show_stack+0x20/0x38 (C) [ 31.587157] dump_stack_lvl+0x8c/0xd0 [ 31.587196] print_report+0x118/0x608 [ 31.587226] kasan_report_invalid_free+0xc0/0xe8 [ 31.587259] check_slab_allocation+0xd4/0x108 [ 31.587291] __kasan_slab_pre_free+0x2c/0x48 [ 31.587319] kmem_cache_free+0xf0/0x468 [ 31.587351] kmem_cache_double_free+0x190/0x3c8 [ 31.587385] kunit_try_run_case+0x170/0x3f0 [ 31.587423] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.587461] kthread+0x328/0x630 [ 31.587495] ret_from_fork+0x10/0x20 [ 31.587531] [ 31.658883] Allocated by task 258: [ 31.662269] kasan_save_stack+0x3c/0x68 [ 31.666086] kasan_save_track+0x20/0x40 [ 31.669905] kasan_save_alloc_info+0x40/0x58 [ 31.674158] __kasan_slab_alloc+0xa8/0xb0 [ 31.678153] kmem_cache_alloc_noprof+0x10c/0x398 [ 31.682752] kmem_cache_double_free+0x12c/0x3c8 [ 31.687266] kunit_try_run_case+0x170/0x3f0 [ 31.691433] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.696901] kthread+0x328/0x630 [ 31.700113] ret_from_fork+0x10/0x20 [ 31.703672] [ 31.705149] Freed by task 258: [ 31.708187] kasan_save_stack+0x3c/0x68 [ 31.712005] kasan_save_track+0x20/0x40 [ 31.715824] kasan_save_free_info+0x4c/0x78 [ 31.719991] __kasan_slab_free+0x6c/0x98 [ 31.723897] kmem_cache_free+0x260/0x468 [ 31.727804] kmem_cache_double_free+0x140/0x3c8 [ 31.732319] kunit_try_run_case+0x170/0x3f0 [ 31.736484] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.741953] kthread+0x328/0x630 [ 31.745164] ret_from_fork+0x10/0x20 [ 31.748723] [ 31.750202] The buggy address belongs to the object at ffff0008018ea000 [ 31.750202] which belongs to the cache test_cache of size 200 [ 31.762614] The buggy address is located 0 bytes inside of [ 31.762614] 200-byte region [ffff0008018ea000, ffff0008018ea0c8) [ 31.774157] [ 31.775637] The buggy address belongs to the physical page: [ 31.781193] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x8818ea [ 31.789176] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 31.796817] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 31.803759] page_type: f5(slab) [ 31.806896] raw: 0bfffe0000000040 ffff0008018c37c0 dead000000000122 0000000000000000 [ 31.814615] raw: 0000000000000000 00000000801f001f 00000000f5000000 0000000000000000 [ 31.822343] head: 0bfffe0000000040 ffff0008018c37c0 dead000000000122 0000000000000000 [ 31.830153] head: 0000000000000000 00000000801f001f 00000000f5000000 0000000000000000 [ 31.837965] head: 0bfffe0000000001 fffffdffe0063a81 00000000ffffffff 00000000ffffffff [ 31.845779] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002 [ 31.853583] page dumped because: kasan: bad access detected [ 31.859140] [ 31.860613] Memory state around the buggy address: [ 31.865397] ffff0008018e9f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.872603] ffff0008018e9f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.879803] >ffff0008018ea000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 31.887003] ^ [ 31.890218] ffff0008018ea080: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc [ 31.897423] ffff0008018ea100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.904626] ==================================================================
[ 16.238394] ================================================================== [ 16.238739] BUG: KASAN: double-free in kmem_cache_double_free+0x190/0x3c8 [ 16.238867] Free of addr fff00000c656e000 by task kunit_try_catch/214 [ 16.238910] [ 16.239113] CPU: 0 UID: 0 PID: 214 Comm: kunit_try_catch Tainted: G B N 6.15.5-rc2 #1 PREEMPT [ 16.239200] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.239256] Hardware name: linux,dummy-virt (DT) [ 16.239289] Call trace: [ 16.239393] show_stack+0x20/0x38 (C) [ 16.239539] dump_stack_lvl+0x8c/0xd0 [ 16.239598] print_report+0x118/0x608 [ 16.239675] kasan_report_invalid_free+0xc0/0xe8 [ 16.239879] check_slab_allocation+0xd4/0x108 [ 16.239926] __kasan_slab_pre_free+0x2c/0x48 [ 16.240012] kmem_cache_free+0xf0/0x468 [ 16.240359] kmem_cache_double_free+0x190/0x3c8 [ 16.240452] kunit_try_run_case+0x170/0x3f0 [ 16.240658] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.240713] kthread+0x328/0x630 [ 16.240801] ret_from_fork+0x10/0x20 [ 16.240907] [ 16.240926] Allocated by task 214: [ 16.240976] kasan_save_stack+0x3c/0x68 [ 16.241018] kasan_save_track+0x20/0x40 [ 16.241053] kasan_save_alloc_info+0x40/0x58 [ 16.241091] __kasan_slab_alloc+0xa8/0xb0 [ 16.241126] kmem_cache_alloc_noprof+0x10c/0x398 [ 16.241217] kmem_cache_double_free+0x12c/0x3c8 [ 16.241259] kunit_try_run_case+0x170/0x3f0 [ 16.241383] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.241592] kthread+0x328/0x630 [ 16.241638] ret_from_fork+0x10/0x20 [ 16.241674] [ 16.241701] Freed by task 214: [ 16.241795] kasan_save_stack+0x3c/0x68 [ 16.241912] kasan_save_track+0x20/0x40 [ 16.241948] kasan_save_free_info+0x4c/0x78 [ 16.241989] __kasan_slab_free+0x6c/0x98 [ 16.242025] kmem_cache_free+0x260/0x468 [ 16.242059] kmem_cache_double_free+0x140/0x3c8 [ 16.242100] kunit_try_run_case+0x170/0x3f0 [ 16.242145] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.242189] kthread+0x328/0x630 [ 16.242251] ret_from_fork+0x10/0x20 [ 16.242285] [ 16.242304] The buggy address belongs to the object at fff00000c656e000 [ 16.242304] which belongs to the cache test_cache of size 200 [ 16.242500] The buggy address is located 0 bytes inside of [ 16.242500] 200-byte region [fff00000c656e000, fff00000c656e0c8) [ 16.242723] [ 16.242744] The buggy address belongs to the physical page: [ 16.242801] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10656e [ 16.242908] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 16.243105] page_type: f5(slab) [ 16.243219] raw: 0bfffe0000000000 fff00000c65af000 dead000000000122 0000000000000000 [ 16.243302] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 16.243342] page dumped because: kasan: bad access detected [ 16.243373] [ 16.243429] Memory state around the buggy address: [ 16.243584] fff00000c656df00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 16.243670] fff00000c656df80: fb fb fb fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.243711] >fff00000c656e000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 16.243749] ^ [ 16.243796] fff00000c656e080: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc [ 16.243851] fff00000c656e100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.243916] ==================================================================
[ 15.218020] ================================================================== [ 15.218835] BUG: KASAN: double-free in kmem_cache_double_free+0x1e5/0x480 [ 15.219690] Free of addr ffff888100ab8000 by task kunit_try_catch/230 [ 15.220079] [ 15.220229] CPU: 1 UID: 0 PID: 230 Comm: kunit_try_catch Tainted: G B N 6.15.5-rc2 #1 PREEMPT(voluntary) [ 15.220500] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.220526] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 15.220570] Call Trace: [ 15.220601] <TASK> [ 15.220642] dump_stack_lvl+0x73/0xb0 [ 15.220707] print_report+0xd1/0x650 [ 15.220759] ? __virt_addr_valid+0x1db/0x2d0 [ 15.220806] ? kasan_complete_mode_report_info+0x64/0x200 [ 15.220883] ? kmem_cache_double_free+0x1e5/0x480 [ 15.220926] kasan_report_invalid_free+0x10a/0x130 [ 15.220975] ? kmem_cache_double_free+0x1e5/0x480 [ 15.221037] ? kmem_cache_double_free+0x1e5/0x480 [ 15.221085] check_slab_allocation+0x101/0x130 [ 15.221134] __kasan_slab_pre_free+0x28/0x40 [ 15.221183] kmem_cache_free+0xed/0x420 [ 15.221229] ? kmem_cache_alloc_noprof+0x123/0x3f0 [ 15.221267] ? kmem_cache_double_free+0x1e5/0x480 [ 15.221320] kmem_cache_double_free+0x1e5/0x480 [ 15.221386] ? __pfx_kmem_cache_double_free+0x10/0x10 [ 15.221432] ? finish_task_switch.isra.0+0x153/0x700 [ 15.221567] ? __switch_to+0x5d9/0xf60 [ 15.221614] ? dequeue_task_fair+0x166/0x4e0 [ 15.221660] ? __pfx_read_tsc+0x10/0x10 [ 15.221683] ? ktime_get_ts64+0x86/0x230 [ 15.221713] kunit_try_run_case+0x1a5/0x480 [ 15.221742] ? __pfx_kunit_try_run_case+0x10/0x10 [ 15.221765] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 15.221792] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 15.221817] ? __kthread_parkme+0x82/0x180 [ 15.221841] ? preempt_count_sub+0x50/0x80 [ 15.221867] ? __pfx_kunit_try_run_case+0x10/0x10 [ 15.221898] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 15.221927] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 15.221951] kthread+0x337/0x6f0 [ 15.221970] ? trace_preempt_on+0x20/0xc0 [ 15.221995] ? __pfx_kthread+0x10/0x10 [ 15.222015] ? _raw_spin_unlock_irq+0x47/0x80 [ 15.222037] ? calculate_sigpending+0x7b/0xa0 [ 15.222060] ? __pfx_kthread+0x10/0x10 [ 15.222108] ret_from_fork+0x41/0x80 [ 15.222132] ? __pfx_kthread+0x10/0x10 [ 15.222152] ret_from_fork_asm+0x1a/0x30 [ 15.222185] </TASK> [ 15.222199] [ 15.238775] Allocated by task 230: [ 15.238996] kasan_save_stack+0x45/0x70 [ 15.239663] kasan_save_track+0x18/0x40 [ 15.240063] kasan_save_alloc_info+0x3b/0x50 [ 15.240508] __kasan_slab_alloc+0x91/0xa0 [ 15.240952] kmem_cache_alloc_noprof+0x123/0x3f0 [ 15.241569] kmem_cache_double_free+0x14f/0x480 [ 15.242018] kunit_try_run_case+0x1a5/0x480 [ 15.242568] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 15.243008] kthread+0x337/0x6f0 [ 15.243173] ret_from_fork+0x41/0x80 [ 15.243521] ret_from_fork_asm+0x1a/0x30 [ 15.243812] [ 15.243930] Freed by task 230: [ 15.244706] kasan_save_stack+0x45/0x70 [ 15.245061] kasan_save_track+0x18/0x40 [ 15.245896] kasan_save_free_info+0x3f/0x60 [ 15.246506] __kasan_slab_free+0x56/0x70 [ 15.246786] kmem_cache_free+0x249/0x420 [ 15.246947] kmem_cache_double_free+0x16a/0x480 [ 15.247331] kunit_try_run_case+0x1a5/0x480 [ 15.247681] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 15.248395] kthread+0x337/0x6f0 [ 15.248724] ret_from_fork+0x41/0x80 [ 15.248918] ret_from_fork_asm+0x1a/0x30 [ 15.249514] [ 15.249672] The buggy address belongs to the object at ffff888100ab8000 [ 15.249672] which belongs to the cache test_cache of size 200 [ 15.251000] The buggy address is located 0 bytes inside of [ 15.251000] 200-byte region [ffff888100ab8000, ffff888100ab80c8) [ 15.251744] [ 15.251944] The buggy address belongs to the physical page: [ 15.252597] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x100ab8 [ 15.253170] flags: 0x200000000000000(node=0|zone=2) [ 15.253772] page_type: f5(slab) [ 15.253940] raw: 0200000000000000 ffff888101c20b40 dead000000000122 0000000000000000 [ 15.254736] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 15.255353] page dumped because: kasan: bad access detected [ 15.255764] [ 15.255884] Memory state around the buggy address: [ 15.256426] ffff888100ab7f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.256795] ffff888100ab7f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.257139] >ffff888100ab8000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 15.257897] ^ [ 15.258077] ffff888100ab8080: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc [ 15.258665] ffff888100ab8100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.259050] ==================================================================