Date
July 22, 2025, 2:40 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 17.976786] ================================================================== [ 17.976871] BUG: KASAN: invalid-free in kmem_cache_invalid_free+0x184/0x3c8 [ 17.976943] Free of addr fff00000c6fab001 by task kunit_try_catch/213 [ 17.976996] [ 17.977037] CPU: 0 UID: 0 PID: 213 Comm: kunit_try_catch Tainted: G B N 6.15.8-rc1 #1 PREEMPT [ 17.977199] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.977343] Hardware name: linux,dummy-virt (DT) [ 17.977388] Call trace: [ 17.977467] show_stack+0x20/0x38 (C) [ 17.977542] dump_stack_lvl+0x8c/0xd0 [ 17.977595] print_report+0x118/0x5d0 [ 17.977660] kasan_report_invalid_free+0xc0/0xe8 [ 17.977712] check_slab_allocation+0xfc/0x108 [ 17.977757] __kasan_slab_pre_free+0x2c/0x48 [ 17.977803] kmem_cache_free+0xf0/0x468 [ 17.977848] kmem_cache_invalid_free+0x184/0x3c8 [ 17.978047] kunit_try_run_case+0x170/0x3f0 [ 17.978162] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.978239] kthread+0x328/0x630 [ 17.978328] ret_from_fork+0x10/0x20 [ 17.978394] [ 17.978433] Allocated by task 213: [ 17.978469] kasan_save_stack+0x3c/0x68 [ 17.978511] kasan_save_track+0x20/0x40 [ 17.978546] kasan_save_alloc_info+0x40/0x58 [ 17.978623] __kasan_slab_alloc+0xa8/0xb0 [ 17.978740] kmem_cache_alloc_noprof+0x10c/0x398 [ 17.978838] kmem_cache_invalid_free+0x12c/0x3c8 [ 17.978956] kunit_try_run_case+0x170/0x3f0 [ 17.979044] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.979174] kthread+0x328/0x630 [ 17.979222] ret_from_fork+0x10/0x20 [ 17.979335] [ 17.979375] The buggy address belongs to the object at fff00000c6fab000 [ 17.979375] which belongs to the cache test_cache of size 200 [ 17.979432] The buggy address is located 1 bytes inside of [ 17.979432] 200-byte region [fff00000c6fab000, fff00000c6fab0c8) [ 17.979726] [ 17.979768] The buggy address belongs to the physical page: [ 17.979819] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106fab [ 17.979935] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 17.980071] page_type: f5(slab) [ 17.980167] raw: 0bfffe0000000000 fff00000c1bdf640 dead000000000122 0000000000000000 [ 17.980265] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 17.980371] page dumped because: kasan: bad access detected [ 17.980448] [ 17.980545] Memory state around the buggy address: [ 17.980589] fff00000c6faaf00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 17.980648] fff00000c6faaf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 17.980702] >fff00000c6fab000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.980739] ^ [ 17.980768] fff00000c6fab080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 17.980958] fff00000c6fab100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.981025] ==================================================================
[ 11.855750] ================================================================== [ 11.856698] BUG: KASAN: invalid-free in kmem_cache_invalid_free+0x1d8/0x460 [ 11.857140] Free of addr ffff888103cf8001 by task kunit_try_catch/231 [ 11.857352] [ 11.857446] CPU: 0 UID: 0 PID: 231 Comm: kunit_try_catch Tainted: G B N 6.15.8-rc1 #1 PREEMPT(voluntary) [ 11.857493] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.857503] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.857525] Call Trace: [ 11.857539] <TASK> [ 11.857555] dump_stack_lvl+0x73/0xb0 [ 11.857583] print_report+0xd1/0x610 [ 11.857606] ? __virt_addr_valid+0x1db/0x2d0 [ 11.857630] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.857651] ? kmem_cache_invalid_free+0x1d8/0x460 [ 11.857672] kasan_report_invalid_free+0x10a/0x130 [ 11.857696] ? kmem_cache_invalid_free+0x1d8/0x460 [ 11.857719] ? kmem_cache_invalid_free+0x1d8/0x460 [ 11.857739] check_slab_allocation+0x11f/0x130 [ 11.857760] __kasan_slab_pre_free+0x28/0x40 [ 11.857781] kmem_cache_free+0xed/0x420 [ 11.857801] ? kasan_save_track+0x18/0x40 [ 11.857821] ? kasan_save_stack+0x45/0x70 [ 11.857839] ? kmem_cache_invalid_free+0x1d8/0x460 [ 11.857859] ? kmem_cache_invalid_free+0x157/0x460 [ 11.857893] kmem_cache_invalid_free+0x1d8/0x460 [ 11.857913] ? __pfx_kmem_cache_invalid_free+0x10/0x10 [ 11.857932] ? finish_task_switch.isra.0+0x153/0x700 [ 11.857968] ? __switch_to+0x5d9/0xf60 [ 11.857988] ? dequeue_task_fair+0x166/0x4e0 [ 11.858015] ? __pfx_read_tsc+0x10/0x10 [ 11.858035] ? ktime_get_ts64+0x86/0x230 [ 11.858061] kunit_try_run_case+0x1a5/0x480 [ 11.858082] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.858100] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.858121] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.858153] ? __kthread_parkme+0x82/0x180 [ 11.858175] ? preempt_count_sub+0x50/0x80 [ 11.858198] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.858238] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.858261] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.858283] kthread+0x337/0x6f0 [ 11.858300] ? trace_preempt_on+0x20/0xc0 [ 11.858323] ? __pfx_kthread+0x10/0x10 [ 11.858340] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.858362] ? calculate_sigpending+0x7b/0xa0 [ 11.858383] ? __pfx_kthread+0x10/0x10 [ 11.858401] ret_from_fork+0x41/0x80 [ 11.858421] ? __pfx_kthread+0x10/0x10 [ 11.858438] ret_from_fork_asm+0x1a/0x30 [ 11.858478] </TASK> [ 11.858489] [ 11.867843] Allocated by task 231: [ 11.868176] kasan_save_stack+0x45/0x70 [ 11.868338] kasan_save_track+0x18/0x40 [ 11.868530] kasan_save_alloc_info+0x3b/0x50 [ 11.868759] __kasan_slab_alloc+0x91/0xa0 [ 11.869088] kmem_cache_alloc_noprof+0x123/0x3f0 [ 11.869288] kmem_cache_invalid_free+0x157/0x460 [ 11.869766] kunit_try_run_case+0x1a5/0x480 [ 11.870066] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.870365] kthread+0x337/0x6f0 [ 11.870547] ret_from_fork+0x41/0x80 [ 11.870699] ret_from_fork_asm+0x1a/0x30 [ 11.870845] [ 11.871012] The buggy address belongs to the object at ffff888103cf8000 [ 11.871012] which belongs to the cache test_cache of size 200 [ 11.871615] The buggy address is located 1 bytes inside of [ 11.871615] 200-byte region [ffff888103cf8000, ffff888103cf80c8) [ 11.872418] [ 11.872515] The buggy address belongs to the physical page: [ 11.873209] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103cf8 [ 11.874240] flags: 0x200000000000000(node=0|zone=2) [ 11.874443] page_type: f5(slab) [ 11.874724] raw: 0200000000000000 ffff8881014e33c0 dead000000000122 0000000000000000 [ 11.875297] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 11.875778] page dumped because: kasan: bad access detected [ 11.876234] [ 11.876502] Memory state around the buggy address: [ 11.877134] ffff888103cf7f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.878010] ffff888103cf7f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.878770] >ffff888103cf8000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 11.879543] ^ [ 11.879946] ffff888103cf8080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 11.880300] ffff888103cf8100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.881142] ==================================================================