Date
July 12, 2025, 11:09 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 20.193996] ================================================================== [ 20.194142] BUG: KASAN: invalid-free in kmem_cache_invalid_free+0x184/0x3c8 [ 20.194316] Free of addr fff00000c59ad001 by task kunit_try_catch/212 [ 20.194433] [ 20.194627] CPU: 0 UID: 0 PID: 212 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 20.195183] Tainted: [B]=BAD_PAGE, [N]=TEST [ 20.195318] Hardware name: linux,dummy-virt (DT) [ 20.195563] Call trace: [ 20.195644] show_stack+0x20/0x38 (C) [ 20.195782] dump_stack_lvl+0x8c/0xd0 [ 20.195915] print_report+0x118/0x608 [ 20.196311] kasan_report_invalid_free+0xc0/0xe8 [ 20.196483] check_slab_allocation+0xfc/0x108 [ 20.196599] __kasan_slab_pre_free+0x2c/0x48 [ 20.196716] kmem_cache_free+0xf0/0x468 [ 20.197326] kmem_cache_invalid_free+0x184/0x3c8 [ 20.197565] kunit_try_run_case+0x170/0x3f0 [ 20.197848] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.198013] kthread+0x328/0x630 [ 20.198124] ret_from_fork+0x10/0x20 [ 20.198227] [ 20.198267] Allocated by task 212: [ 20.198354] kasan_save_stack+0x3c/0x68 [ 20.198447] kasan_save_track+0x20/0x40 [ 20.198612] kasan_save_alloc_info+0x40/0x58 [ 20.198754] __kasan_slab_alloc+0xa8/0xb0 [ 20.198859] kmem_cache_alloc_noprof+0x10c/0x398 [ 20.198962] kmem_cache_invalid_free+0x12c/0x3c8 [ 20.199097] kunit_try_run_case+0x170/0x3f0 [ 20.199190] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.199322] kthread+0x328/0x630 [ 20.199409] ret_from_fork+0x10/0x20 [ 20.199500] [ 20.199543] The buggy address belongs to the object at fff00000c59ad000 [ 20.199543] which belongs to the cache test_cache of size 200 [ 20.199735] The buggy address is located 1 bytes inside of [ 20.199735] 200-byte region [fff00000c59ad000, fff00000c59ad0c8) [ 20.199889] [ 20.199960] The buggy address belongs to the physical page: [ 20.200071] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1059ad [ 20.200245] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 20.200365] page_type: f5(slab) [ 20.200452] raw: 0bfffe0000000000 fff00000c58018c0 dead000000000122 0000000000000000 [ 20.200576] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 20.200708] page dumped because: kasan: bad access detected [ 20.200808] [ 20.200860] Memory state around the buggy address: [ 20.200925] fff00000c59acf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.201120] fff00000c59acf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.201262] >fff00000c59ad000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 20.201361] ^ [ 20.201427] fff00000c59ad080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 20.201575] fff00000c59ad100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.201671] ==================================================================
[ 13.343957] ================================================================== [ 13.344484] BUG: KASAN: invalid-free in kmem_cache_invalid_free+0x1d8/0x460 [ 13.344795] Free of addr ffff888102667001 by task kunit_try_catch/229 [ 13.345166] [ 13.345263] CPU: 1 UID: 0 PID: 229 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 13.345306] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.345316] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.345336] Call Trace: [ 13.345349] <TASK> [ 13.345366] dump_stack_lvl+0x73/0xb0 [ 13.345396] print_report+0xd1/0x650 [ 13.345418] ? __virt_addr_valid+0x1db/0x2d0 [ 13.345443] ? kasan_complete_mode_report_info+0x2a/0x200 [ 13.345465] ? kmem_cache_invalid_free+0x1d8/0x460 [ 13.345491] kasan_report_invalid_free+0x10a/0x130 [ 13.345515] ? kmem_cache_invalid_free+0x1d8/0x460 [ 13.345541] ? kmem_cache_invalid_free+0x1d8/0x460 [ 13.345567] check_slab_allocation+0x11f/0x130 [ 13.345589] __kasan_slab_pre_free+0x28/0x40 [ 13.345609] kmem_cache_free+0xed/0x420 [ 13.345629] ? kmem_cache_alloc_noprof+0x123/0x3f0 [ 13.345659] ? kmem_cache_invalid_free+0x1d8/0x460 [ 13.345687] kmem_cache_invalid_free+0x1d8/0x460 [ 13.345711] ? __pfx_kmem_cache_invalid_free+0x10/0x10 [ 13.345736] ? finish_task_switch.isra.0+0x153/0x700 [ 13.345771] ? __switch_to+0x47/0xf50 [ 13.345800] ? __pfx_read_tsc+0x10/0x10 [ 13.345821] ? ktime_get_ts64+0x86/0x230 [ 13.345844] kunit_try_run_case+0x1a5/0x480 [ 13.345869] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.345892] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.345916] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.345940] ? __kthread_parkme+0x82/0x180 [ 13.345960] ? preempt_count_sub+0x50/0x80 [ 13.345982] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.346006] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.346030] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.346055] kthread+0x337/0x6f0 [ 13.346073] ? trace_preempt_on+0x20/0xc0 [ 13.346097] ? __pfx_kthread+0x10/0x10 [ 13.346117] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.346139] ? calculate_sigpending+0x7b/0xa0 [ 13.346162] ? __pfx_kthread+0x10/0x10 [ 13.346183] ret_from_fork+0x116/0x1d0 [ 13.346202] ? __pfx_kthread+0x10/0x10 [ 13.346222] ret_from_fork_asm+0x1a/0x30 [ 13.346252] </TASK> [ 13.346262] [ 13.357938] Allocated by task 229: [ 13.358110] kasan_save_stack+0x45/0x70 [ 13.358309] kasan_save_track+0x18/0x40 [ 13.358463] kasan_save_alloc_info+0x3b/0x50 [ 13.358667] __kasan_slab_alloc+0x91/0xa0 [ 13.358818] kmem_cache_alloc_noprof+0x123/0x3f0 [ 13.359133] kmem_cache_invalid_free+0x157/0x460 [ 13.359343] kunit_try_run_case+0x1a5/0x480 [ 13.359489] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.359711] kthread+0x337/0x6f0 [ 13.359897] ret_from_fork+0x116/0x1d0 [ 13.360085] ret_from_fork_asm+0x1a/0x30 [ 13.360273] [ 13.360358] The buggy address belongs to the object at ffff888102667000 [ 13.360358] which belongs to the cache test_cache of size 200 [ 13.360739] The buggy address is located 1 bytes inside of [ 13.360739] 200-byte region [ffff888102667000, ffff8881026670c8) [ 13.361368] [ 13.361465] The buggy address belongs to the physical page: [ 13.361665] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102667 [ 13.361914] flags: 0x200000000000000(node=0|zone=2) [ 13.362304] page_type: f5(slab) [ 13.362478] raw: 0200000000000000 ffff8881010208c0 dead000000000122 0000000000000000 [ 13.362854] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 13.363180] page dumped because: kasan: bad access detected [ 13.363350] [ 13.363419] Memory state around the buggy address: [ 13.363571] ffff888102666f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.364211] ffff888102666f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.364510] >ffff888102667000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 13.364794] ^ [ 13.365025] ffff888102667080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 13.365246] ffff888102667100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.365555] ==================================================================