Date
July 18, 2025, 1:09 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 32.151172] ================================================================== [ 32.151233] BUG: KASAN: invalid-free in kmem_cache_invalid_free+0x184/0x3c8 [ 32.151294] Free of addr fff00000c3ff2001 by task kunit_try_catch/242 [ 32.151336] [ 32.151404] CPU: 0 UID: 0 PID: 242 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250718 #1 PREEMPT [ 32.151566] Tainted: [B]=BAD_PAGE, [N]=TEST [ 32.151607] Hardware name: linux,dummy-virt (DT) [ 32.151640] Call trace: [ 32.151683] show_stack+0x20/0x38 (C) [ 32.151818] dump_stack_lvl+0x8c/0xd0 [ 32.151873] print_report+0x118/0x5e8 [ 32.151937] kasan_report_invalid_free+0xc0/0xe8 [ 32.151985] check_slab_allocation+0xfc/0x108 [ 32.152030] __kasan_slab_pre_free+0x2c/0x48 [ 32.152075] kmem_cache_free+0xf0/0x468 [ 32.152135] kmem_cache_invalid_free+0x184/0x3c8 [ 32.152184] kunit_try_run_case+0x170/0x3f0 [ 32.152440] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 32.152499] kthread+0x328/0x630 [ 32.152545] ret_from_fork+0x10/0x20 [ 32.152603] [ 32.152621] Allocated by task 242: [ 32.152651] kasan_save_stack+0x3c/0x68 [ 32.152700] kasan_save_track+0x20/0x40 [ 32.152734] kasan_save_alloc_info+0x40/0x58 [ 32.152771] __kasan_slab_alloc+0xa8/0xb0 [ 32.152805] kmem_cache_alloc_noprof+0x10c/0x398 [ 32.152856] kmem_cache_invalid_free+0x12c/0x3c8 [ 32.152895] kunit_try_run_case+0x170/0x3f0 [ 32.152931] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 32.152978] kthread+0x328/0x630 [ 32.153021] ret_from_fork+0x10/0x20 [ 32.153055] [ 32.153073] The buggy address belongs to the object at fff00000c3ff2000 [ 32.153073] which belongs to the cache test_cache of size 200 [ 32.153158] The buggy address is located 1 bytes inside of [ 32.153158] 200-byte region [fff00000c3ff2000, fff00000c3ff20c8) [ 32.153226] [ 32.153266] The buggy address belongs to the physical page: [ 32.153299] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103ff2 [ 32.153361] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 32.153411] page_type: f5(slab) [ 32.153450] raw: 0bfffe0000000000 fff00000c4743640 dead000000000122 0000000000000000 [ 32.153516] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 32.153566] page dumped because: kasan: bad access detected [ 32.153612] [ 32.153631] Memory state around the buggy address: [ 32.153667] fff00000c3ff1f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 32.153721] fff00000c3ff1f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 32.153764] >fff00000c3ff2000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 32.153802] ^ [ 32.153828] fff00000c3ff2080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 32.153870] fff00000c3ff2100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 32.153908] ==================================================================
[ 25.587707] ================================================================== [ 25.588289] BUG: KASAN: invalid-free in kmem_cache_invalid_free+0x1d8/0x460 [ 25.588920] Free of addr ffff8881053be001 by task kunit_try_catch/259 [ 25.589209] [ 25.589383] CPU: 0 UID: 0 PID: 259 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250718 #1 PREEMPT(voluntary) [ 25.589665] Tainted: [B]=BAD_PAGE, [N]=TEST [ 25.589678] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 25.589702] Call Trace: [ 25.589717] <TASK> [ 25.589735] dump_stack_lvl+0x73/0xb0 [ 25.589983] print_report+0xd1/0x640 [ 25.590008] ? __virt_addr_valid+0x1db/0x2d0 [ 25.590036] ? kasan_complete_mode_report_info+0x2a/0x200 [ 25.590061] ? kmem_cache_invalid_free+0x1d8/0x460 [ 25.590085] kasan_report_invalid_free+0x10a/0x130 [ 25.590109] ? kmem_cache_invalid_free+0x1d8/0x460 [ 25.590134] ? kmem_cache_invalid_free+0x1d8/0x460 [ 25.590157] check_slab_allocation+0x11f/0x130 [ 25.590178] __kasan_slab_pre_free+0x28/0x40 [ 25.590197] kmem_cache_free+0xed/0x420 [ 25.590217] ? kmem_cache_alloc_noprof+0x123/0x3f0 [ 25.590255] ? kmem_cache_invalid_free+0x1d8/0x460 [ 25.590280] kmem_cache_invalid_free+0x1d8/0x460 [ 25.590304] ? __pfx_kmem_cache_invalid_free+0x10/0x10 [ 25.590326] ? finish_task_switch.isra.0+0x153/0x700 [ 25.590347] ? __switch_to+0x47/0xf80 [ 25.590376] ? __pfx_read_tsc+0x10/0x10 [ 25.590398] ? ktime_get_ts64+0x86/0x230 [ 25.590423] kunit_try_run_case+0x1a5/0x480 [ 25.590448] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.590469] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 25.590503] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 25.590535] ? __kthread_parkme+0x82/0x180 [ 25.590554] ? preempt_count_sub+0x50/0x80 [ 25.590575] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.590598] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.590621] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 25.590650] kthread+0x337/0x6f0 [ 25.590672] ? trace_preempt_on+0x20/0xc0 [ 25.590696] ? __pfx_kthread+0x10/0x10 [ 25.590715] ? _raw_spin_unlock_irq+0x47/0x80 [ 25.590745] ? calculate_sigpending+0x7b/0xa0 [ 25.590769] ? __pfx_kthread+0x10/0x10 [ 25.590789] ret_from_fork+0x116/0x1d0 [ 25.590808] ? __pfx_kthread+0x10/0x10 [ 25.590827] ret_from_fork_asm+0x1a/0x30 [ 25.590873] </TASK> [ 25.590884] [ 25.602389] Allocated by task 259: [ 25.602556] kasan_save_stack+0x45/0x70 [ 25.602749] kasan_save_track+0x18/0x40 [ 25.602916] kasan_save_alloc_info+0x3b/0x50 [ 25.603099] __kasan_slab_alloc+0x91/0xa0 [ 25.603990] kmem_cache_alloc_noprof+0x123/0x3f0 [ 25.604360] kmem_cache_invalid_free+0x157/0x460 [ 25.604765] kunit_try_run_case+0x1a5/0x480 [ 25.605196] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.605585] kthread+0x337/0x6f0 [ 25.605941] ret_from_fork+0x116/0x1d0 [ 25.606252] ret_from_fork_asm+0x1a/0x30 [ 25.606555] [ 25.606791] The buggy address belongs to the object at ffff8881053be000 [ 25.606791] which belongs to the cache test_cache of size 200 [ 25.607497] The buggy address is located 1 bytes inside of [ 25.607497] 200-byte region [ffff8881053be000, ffff8881053be0c8) [ 25.608483] [ 25.608718] The buggy address belongs to the physical page: [ 25.609297] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1053be [ 25.609899] flags: 0x200000000000000(node=0|zone=2) [ 25.610385] page_type: f5(slab) [ 25.610691] raw: 0200000000000000 ffff888100a0b500 dead000000000122 0000000000000000 [ 25.611268] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 25.611568] page dumped because: kasan: bad access detected [ 25.611784] [ 25.611863] Memory state around the buggy address: [ 25.612065] ffff8881053bdf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.612868] ffff8881053bdf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.613552] >ffff8881053be000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 25.614436] ^ [ 25.614764] ffff8881053be080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 25.615088] ffff8881053be100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.615397] ==================================================================