Date
July 4, 2025, 11:11 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.714627] ================================================================== [ 18.714690] BUG: KASAN: invalid-free in kmem_cache_invalid_free+0x184/0x3c8 [ 18.715977] Free of addr fff00000c76e8001 by task kunit_try_catch/211 [ 18.716282] [ 18.716512] CPU: 1 UID: 0 PID: 211 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 18.716833] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.717247] Hardware name: linux,dummy-virt (DT) [ 18.717319] Call trace: [ 18.717427] show_stack+0x20/0x38 (C) [ 18.717538] dump_stack_lvl+0x8c/0xd0 [ 18.717608] print_report+0x118/0x608 [ 18.718180] kasan_report_invalid_free+0xc0/0xe8 [ 18.718275] check_slab_allocation+0xfc/0x108 [ 18.718663] __kasan_slab_pre_free+0x2c/0x48 [ 18.718736] kmem_cache_free+0xf0/0x468 [ 18.718989] kmem_cache_invalid_free+0x184/0x3c8 [ 18.719152] kunit_try_run_case+0x170/0x3f0 [ 18.719368] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.719621] kthread+0x328/0x630 [ 18.719766] ret_from_fork+0x10/0x20 [ 18.720195] [ 18.720239] Allocated by task 211: [ 18.720272] kasan_save_stack+0x3c/0x68 [ 18.720334] kasan_save_track+0x20/0x40 [ 18.720797] kasan_save_alloc_info+0x40/0x58 [ 18.720992] __kasan_slab_alloc+0xa8/0xb0 [ 18.721135] kmem_cache_alloc_noprof+0x10c/0x398 [ 18.721208] kmem_cache_invalid_free+0x12c/0x3c8 [ 18.721264] kunit_try_run_case+0x170/0x3f0 [ 18.721432] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.721772] kthread+0x328/0x630 [ 18.721903] ret_from_fork+0x10/0x20 [ 18.721969] [ 18.722063] The buggy address belongs to the object at fff00000c76e8000 [ 18.722063] which belongs to the cache test_cache of size 200 [ 18.722124] The buggy address is located 1 bytes inside of [ 18.722124] 200-byte region [fff00000c76e8000, fff00000c76e80c8) [ 18.722527] [ 18.722555] The buggy address belongs to the physical page: [ 18.722862] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1076e8 [ 18.723086] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.723370] page_type: f5(slab) [ 18.723629] raw: 0bfffe0000000000 fff00000c46f5b40 dead000000000122 0000000000000000 [ 18.723878] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 18.724124] page dumped because: kasan: bad access detected [ 18.724192] [ 18.724244] Memory state around the buggy address: [ 18.724409] fff00000c76e7f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 18.724463] fff00000c76e7f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 18.724592] >fff00000c76e8000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 18.724633] ^ [ 18.724661] fff00000c76e8080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 18.724912] fff00000c76e8100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.725048] ==================================================================
[ 12.723087] ================================================================== [ 12.723697] BUG: KASAN: invalid-free in kmem_cache_invalid_free+0x1d8/0x460 [ 12.723955] Free of addr ffff88810398b001 by task kunit_try_catch/228 [ 12.724155] [ 12.724290] CPU: 1 UID: 0 PID: 228 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 12.724340] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.724352] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.724375] Call Trace: [ 12.724388] <TASK> [ 12.724426] dump_stack_lvl+0x73/0xb0 [ 12.724461] print_report+0xd1/0x650 [ 12.724483] ? __virt_addr_valid+0x1db/0x2d0 [ 12.724508] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.724529] ? kmem_cache_invalid_free+0x1d8/0x460 [ 12.724553] kasan_report_invalid_free+0x10a/0x130 [ 12.724576] ? kmem_cache_invalid_free+0x1d8/0x460 [ 12.724601] ? kmem_cache_invalid_free+0x1d8/0x460 [ 12.724624] check_slab_allocation+0x11f/0x130 [ 12.724644] __kasan_slab_pre_free+0x28/0x40 [ 12.724664] kmem_cache_free+0xed/0x420 [ 12.724722] ? kmem_cache_alloc_noprof+0x123/0x3f0 [ 12.724760] ? kmem_cache_invalid_free+0x1d8/0x460 [ 12.724805] kmem_cache_invalid_free+0x1d8/0x460 [ 12.724829] ? __pfx_kmem_cache_invalid_free+0x10/0x10 [ 12.724854] ? finish_task_switch.isra.0+0x153/0x700 [ 12.724877] ? __switch_to+0x47/0xf50 [ 12.724905] ? __pfx_read_tsc+0x10/0x10 [ 12.724925] ? ktime_get_ts64+0x86/0x230 [ 12.724948] kunit_try_run_case+0x1a5/0x480 [ 12.724974] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.724995] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.725019] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.725040] ? __kthread_parkme+0x82/0x180 [ 12.725061] ? preempt_count_sub+0x50/0x80 [ 12.725082] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.725103] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.725124] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.725145] kthread+0x337/0x6f0 [ 12.725163] ? trace_preempt_on+0x20/0xc0 [ 12.725186] ? __pfx_kthread+0x10/0x10 [ 12.725484] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.725515] ? calculate_sigpending+0x7b/0xa0 [ 12.725541] ? __pfx_kthread+0x10/0x10 [ 12.725561] ret_from_fork+0x116/0x1d0 [ 12.725580] ? __pfx_kthread+0x10/0x10 [ 12.725598] ret_from_fork_asm+0x1a/0x30 [ 12.725629] </TASK> [ 12.725640] [ 12.737118] Allocated by task 228: [ 12.737367] kasan_save_stack+0x45/0x70 [ 12.737533] kasan_save_track+0x18/0x40 [ 12.737665] kasan_save_alloc_info+0x3b/0x50 [ 12.738132] __kasan_slab_alloc+0x91/0xa0 [ 12.738884] kmem_cache_alloc_noprof+0x123/0x3f0 [ 12.739091] kmem_cache_invalid_free+0x157/0x460 [ 12.739395] kunit_try_run_case+0x1a5/0x480 [ 12.739960] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.740195] kthread+0x337/0x6f0 [ 12.740386] ret_from_fork+0x116/0x1d0 [ 12.740629] ret_from_fork_asm+0x1a/0x30 [ 12.740873] [ 12.740974] The buggy address belongs to the object at ffff88810398b000 [ 12.740974] which belongs to the cache test_cache of size 200 [ 12.741592] The buggy address is located 1 bytes inside of [ 12.741592] 200-byte region [ffff88810398b000, ffff88810398b0c8) [ 12.742025] [ 12.742129] The buggy address belongs to the physical page: [ 12.742332] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10398b [ 12.742642] flags: 0x200000000000000(node=0|zone=2) [ 12.742984] page_type: f5(slab) [ 12.743423] raw: 0200000000000000 ffff888101d0c780 dead000000000122 0000000000000000 [ 12.743667] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 12.745053] page dumped because: kasan: bad access detected [ 12.745529] [ 12.745818] Memory state around the buggy address: [ 12.746109] ffff88810398af00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.746593] ffff88810398af80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.747027] >ffff88810398b000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.747474] ^ [ 12.747799] ffff88810398b080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 12.748097] ffff88810398b100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.748693] ==================================================================