Date
June 7, 2025, 10:40 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 23.656564] ================================================================== [ 23.656768] BUG: KASAN: invalid-free in kmem_cache_invalid_free+0x184/0x3c8 [ 23.657383] Free of addr fff00000c7773001 by task kunit_try_catch/215 [ 23.657582] [ 23.657683] CPU: 1 UID: 0 PID: 215 Comm: kunit_try_catch Tainted: G B N 6.15.2-rc1 #1 PREEMPT [ 23.658062] Tainted: [B]=BAD_PAGE, [N]=TEST [ 23.658285] Hardware name: linux,dummy-virt (DT) [ 23.658452] Call trace: [ 23.658556] show_stack+0x20/0x38 (C) [ 23.658727] dump_stack_lvl+0x8c/0xd0 [ 23.658859] print_report+0x118/0x608 [ 23.658960] kasan_report_invalid_free+0xc0/0xe8 [ 23.659055] check_slab_allocation+0xfc/0x108 [ 23.659167] __kasan_slab_pre_free+0x2c/0x48 [ 23.659288] kmem_cache_free+0xf0/0x468 [ 23.659423] kmem_cache_invalid_free+0x184/0x3c8 [ 23.659565] kunit_try_run_case+0x170/0x3f0 [ 23.659715] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 23.659853] kthread+0x328/0x630 [ 23.660336] ret_from_fork+0x10/0x20 [ 23.660760] [ 23.660812] Allocated by task 215: [ 23.661000] kasan_save_stack+0x3c/0x68 [ 23.661466] kasan_save_track+0x20/0x40 [ 23.661867] kasan_save_alloc_info+0x40/0x58 [ 23.662030] __kasan_slab_alloc+0xa8/0xb0 [ 23.662122] kmem_cache_alloc_noprof+0x10c/0x398 [ 23.662260] kmem_cache_invalid_free+0x12c/0x3c8 [ 23.662445] kunit_try_run_case+0x170/0x3f0 [ 23.662548] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 23.662923] kthread+0x328/0x630 [ 23.663105] ret_from_fork+0x10/0x20 [ 23.663195] [ 23.663245] The buggy address belongs to the object at fff00000c7773000 [ 23.663245] which belongs to the cache test_cache of size 200 [ 23.663381] The buggy address is located 1 bytes inside of [ 23.663381] 200-byte region [fff00000c7773000, fff00000c77730c8) [ 23.663523] [ 23.663570] The buggy address belongs to the physical page: [ 23.663646] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107773 [ 23.664113] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 23.664358] page_type: f5(slab) [ 23.664515] raw: 0bfffe0000000000 fff00000c56b53c0 dead000000000122 0000000000000000 [ 23.664638] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 23.665025] page dumped because: kasan: bad access detected [ 23.665169] [ 23.665217] Memory state around the buggy address: [ 23.665304] fff00000c7772f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.665436] fff00000c7772f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.665556] >fff00000c7773000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 23.665676] ^ [ 23.665750] fff00000c7773080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 23.666172] fff00000c7773100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.666330] ==================================================================
[ 14.642444] ================================================================== [ 14.643084] BUG: KASAN: invalid-free in kmem_cache_invalid_free+0x1d8/0x460 [ 14.643674] Free of addr ffff8881039e8001 by task kunit_try_catch/231 [ 14.643957] [ 14.644104] CPU: 1 UID: 0 PID: 231 Comm: kunit_try_catch Tainted: G B N 6.15.2-rc1 #1 PREEMPT(voluntary) [ 14.644334] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.644361] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.644407] Call Trace: [ 14.644437] <TASK> [ 14.644473] dump_stack_lvl+0x73/0xb0 [ 14.644534] print_report+0xd1/0x650 [ 14.644591] ? __virt_addr_valid+0x1db/0x2d0 [ 14.644636] ? kasan_complete_mode_report_info+0x2a/0x200 [ 14.644677] ? kmem_cache_invalid_free+0x1d8/0x460 [ 14.644721] kasan_report_invalid_free+0x10a/0x130 [ 14.644771] ? kmem_cache_invalid_free+0x1d8/0x460 [ 14.644818] ? kmem_cache_invalid_free+0x1d8/0x460 [ 14.644863] check_slab_allocation+0x11f/0x130 [ 14.644909] __kasan_slab_pre_free+0x28/0x40 [ 14.644952] kmem_cache_free+0xed/0x420 [ 14.644991] ? kmem_cache_alloc_noprof+0x123/0x3f0 [ 14.645024] ? kmem_cache_invalid_free+0x1d8/0x460 [ 14.645062] kmem_cache_invalid_free+0x1d8/0x460 [ 14.645100] ? __pfx_kmem_cache_invalid_free+0x10/0x10 [ 14.645135] ? finish_task_switch.isra.0+0x153/0x700 [ 14.645176] ? __switch_to+0x5d9/0xf60 [ 14.645211] ? dequeue_task_fair+0x166/0x4e0 [ 14.645260] ? __pfx_read_tsc+0x10/0x10 [ 14.645299] ? ktime_get_ts64+0x86/0x230 [ 14.645343] kunit_try_run_case+0x1a5/0x480 [ 14.645393] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.645430] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 14.645470] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 14.645512] ? __kthread_parkme+0x82/0x180 [ 14.645566] ? preempt_count_sub+0x50/0x80 [ 14.645618] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.645652] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.645689] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.645716] kthread+0x337/0x6f0 [ 14.645734] ? trace_preempt_on+0x20/0xc0 [ 14.645760] ? __pfx_kthread+0x10/0x10 [ 14.645777] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.645798] ? calculate_sigpending+0x7b/0xa0 [ 14.645821] ? __pfx_kthread+0x10/0x10 [ 14.645839] ret_from_fork+0x41/0x80 [ 14.645860] ? __pfx_kthread+0x10/0x10 [ 14.645878] ret_from_fork_asm+0x1a/0x30 [ 14.645907] </TASK> [ 14.645921] [ 14.659101] Allocated by task 231: [ 14.659296] kasan_save_stack+0x45/0x70 [ 14.659475] kasan_save_track+0x18/0x40 [ 14.659639] kasan_save_alloc_info+0x3b/0x50 [ 14.659821] __kasan_slab_alloc+0x91/0xa0 [ 14.660016] kmem_cache_alloc_noprof+0x123/0x3f0 [ 14.660228] kmem_cache_invalid_free+0x157/0x460 [ 14.660429] kunit_try_run_case+0x1a5/0x480 [ 14.662085] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.662454] kthread+0x337/0x6f0 [ 14.662969] ret_from_fork+0x41/0x80 [ 14.663475] ret_from_fork_asm+0x1a/0x30 [ 14.664076] [ 14.664190] The buggy address belongs to the object at ffff8881039e8000 [ 14.664190] which belongs to the cache test_cache of size 200 [ 14.664524] The buggy address is located 1 bytes inside of [ 14.664524] 200-byte region [ffff8881039e8000, ffff8881039e80c8) [ 14.665707] [ 14.665927] The buggy address belongs to the physical page: [ 14.667245] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1039e8 [ 14.667600] flags: 0x200000000000000(node=0|zone=2) [ 14.667984] page_type: f5(slab) [ 14.668266] raw: 0200000000000000 ffff888101c8f500 dead000000000122 0000000000000000 [ 14.668505] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 14.669533] page dumped because: kasan: bad access detected [ 14.670240] [ 14.670408] Memory state around the buggy address: [ 14.671276] ffff8881039e7f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 14.671674] ffff8881039e7f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 14.672546] >ffff8881039e8000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 14.673323] ^ [ 14.673967] ffff8881039e8080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 14.674311] ffff8881039e8100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.675111] ==================================================================