Date
July 23, 2025, 3:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 31.746672] ================================================================== [ 31.746744] BUG: KASAN: invalid-free in kmem_cache_invalid_free+0x184/0x3c8 [ 31.746816] Free of addr fff00000c9a5b001 by task kunit_try_catch/244 [ 31.746858] [ 31.747283] CPU: 0 UID: 0 PID: 244 Comm: kunit_try_catch Tainted: G B W N 6.16.0-rc7-next-20250723 #1 PREEMPT [ 31.747394] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST [ 31.747426] Hardware name: linux,dummy-virt (DT) [ 31.747460] Call trace: [ 31.747485] show_stack+0x20/0x38 (C) [ 31.747687] dump_stack_lvl+0x8c/0xd0 [ 31.747754] print_report+0x118/0x5e8 [ 31.747930] kasan_report_invalid_free+0xc0/0xe8 [ 31.747985] check_slab_allocation+0xfc/0x108 [ 31.748032] __kasan_slab_pre_free+0x2c/0x48 [ 31.748156] kmem_cache_free+0xf0/0x468 [ 31.748257] kmem_cache_invalid_free+0x184/0x3c8 [ 31.748336] kunit_try_run_case+0x170/0x3f0 [ 31.748423] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.748479] kthread+0x328/0x630 [ 31.748646] ret_from_fork+0x10/0x20 [ 31.748804] [ 31.748887] Allocated by task 244: [ 31.748939] kasan_save_stack+0x3c/0x68 [ 31.749008] kasan_save_track+0x20/0x40 [ 31.749077] kasan_save_alloc_info+0x40/0x58 [ 31.749125] __kasan_slab_alloc+0xa8/0xb0 [ 31.749161] kmem_cache_alloc_noprof+0x10c/0x398 [ 31.749395] kmem_cache_invalid_free+0x12c/0x3c8 [ 31.749505] kunit_try_run_case+0x170/0x3f0 [ 31.749602] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.749681] kthread+0x328/0x630 [ 31.749799] ret_from_fork+0x10/0x20 [ 31.750100] [ 31.750155] The buggy address belongs to the object at fff00000c9a5b000 [ 31.750155] which belongs to the cache test_cache of size 200 [ 31.750219] The buggy address is located 1 bytes inside of [ 31.750219] 200-byte region [fff00000c9a5b000, fff00000c9a5b0c8) [ 31.750339] [ 31.750384] The buggy address belongs to the physical page: [ 31.750440] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x109a5b [ 31.750530] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 31.750624] page_type: f5(slab) [ 31.750665] raw: 0bfffe0000000000 fff00000c5c24780 dead000000000122 0000000000000000 [ 31.750754] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 31.750812] page dumped because: kasan: bad access detected [ 31.750851] [ 31.750890] Memory state around the buggy address: [ 31.750981] fff00000c9a5af00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 31.751054] fff00000c9a5af80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 31.751130] >fff00000c9a5b000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 31.751227] ^ [ 31.751550] fff00000c9a5b080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 31.751700] fff00000c9a5b100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.751770] ==================================================================
[ 25.948791] ================================================================== [ 25.950069] BUG: KASAN: invalid-free in kmem_cache_invalid_free+0x1d8/0x460 [ 25.951109] Free of addr ffff888106118001 by task kunit_try_catch/260 [ 25.951463] [ 25.951586] CPU: 0 UID: 0 PID: 260 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7-next-20250723 #1 PREEMPT(voluntary) [ 25.951653] Tainted: [B]=BAD_PAGE, [N]=TEST [ 25.951668] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 25.951692] Call Trace: [ 25.951708] <TASK> [ 25.951730] dump_stack_lvl+0x73/0xb0 [ 25.951766] print_report+0xd1/0x640 [ 25.951792] ? __virt_addr_valid+0x1db/0x2d0 [ 25.951819] ? kasan_complete_mode_report_info+0x2a/0x200 [ 25.951845] ? kmem_cache_invalid_free+0x1d8/0x460 [ 25.951870] kasan_report_invalid_free+0x10a/0x130 [ 25.951893] ? kmem_cache_invalid_free+0x1d8/0x460 [ 25.951919] ? kmem_cache_invalid_free+0x1d8/0x460 [ 25.951944] check_slab_allocation+0x11f/0x130 [ 25.951966] __kasan_slab_pre_free+0x28/0x40 [ 25.951987] kmem_cache_free+0xed/0x420 [ 25.952007] ? kmem_cache_alloc_noprof+0x123/0x3f0 [ 25.952033] ? kmem_cache_invalid_free+0x1d8/0x460 [ 25.952059] kmem_cache_invalid_free+0x1d8/0x460 [ 25.952083] ? __pfx_kmem_cache_invalid_free+0x10/0x10 [ 25.952107] ? finish_task_switch.isra.0+0x153/0x700 [ 25.952129] ? __switch_to+0x47/0xf80 [ 25.952181] ? __pfx_read_tsc+0x10/0x10 [ 25.952203] ? ktime_get_ts64+0x86/0x230 [ 25.952241] kunit_try_run_case+0x1a5/0x480 [ 25.952268] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.952290] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 25.952316] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 25.952341] ? __kthread_parkme+0x82/0x180 [ 25.952361] ? preempt_count_sub+0x50/0x80 [ 25.952384] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.952416] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.952516] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 25.952541] kthread+0x337/0x6f0 [ 25.952564] ? trace_preempt_on+0x20/0xc0 [ 25.952596] ? __pfx_kthread+0x10/0x10 [ 25.952619] ? _raw_spin_unlock_irq+0x47/0x80 [ 25.952644] ? calculate_sigpending+0x7b/0xa0 [ 25.952669] ? __pfx_kthread+0x10/0x10 [ 25.952691] ret_from_fork+0x116/0x1d0 [ 25.952711] ? __pfx_kthread+0x10/0x10 [ 25.952732] ret_from_fork_asm+0x1a/0x30 [ 25.952763] </TASK> [ 25.952775] [ 25.965405] Allocated by task 260: [ 25.965761] kasan_save_stack+0x45/0x70 [ 25.966117] kasan_save_track+0x18/0x40 [ 25.966578] kasan_save_alloc_info+0x3b/0x50 [ 25.967040] __kasan_slab_alloc+0x91/0xa0 [ 25.967467] kmem_cache_alloc_noprof+0x123/0x3f0 [ 25.967872] kmem_cache_invalid_free+0x157/0x460 [ 25.968036] kunit_try_run_case+0x1a5/0x480 [ 25.968189] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.968362] kthread+0x337/0x6f0 [ 25.969062] ret_from_fork+0x116/0x1d0 [ 25.969488] ret_from_fork_asm+0x1a/0x30 [ 25.969885] [ 25.970066] The buggy address belongs to the object at ffff888106118000 [ 25.970066] which belongs to the cache test_cache of size 200 [ 25.971164] The buggy address is located 1 bytes inside of [ 25.971164] 200-byte region [ffff888106118000, ffff8881061180c8) [ 25.971911] [ 25.971984] The buggy address belongs to the physical page: [ 25.972232] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106118 [ 25.972962] flags: 0x200000000000000(node=0|zone=2) [ 25.973624] page_type: f5(slab) [ 25.973942] raw: 0200000000000000 ffff888101dc63c0 dead000000000122 0000000000000000 [ 25.974691] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 25.975091] page dumped because: kasan: bad access detected [ 25.975271] [ 25.975338] Memory state around the buggy address: [ 25.975699] ffff888106117f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.976361] ffff888106117f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.977039] >ffff888106118000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 25.977727] ^ [ 25.978079] ffff888106118080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 25.978368] ffff888106118100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.979232] ==================================================================