Date
July 6, 2025, 11:09 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.847280] ================================================================== [ 18.847342] BUG: KASAN: invalid-free in kmem_cache_invalid_free+0x184/0x3c8 [ 18.847414] Free of addr fff00000c56f5001 by task kunit_try_catch/211 [ 18.847538] [ 18.847583] CPU: 1 UID: 0 PID: 211 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 18.847682] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.848000] Hardware name: linux,dummy-virt (DT) [ 18.848105] Call trace: [ 18.848175] show_stack+0x20/0x38 (C) [ 18.848261] dump_stack_lvl+0x8c/0xd0 [ 18.848377] print_report+0x118/0x608 [ 18.848452] kasan_report_invalid_free+0xc0/0xe8 [ 18.848507] check_slab_allocation+0xfc/0x108 [ 18.848620] __kasan_slab_pre_free+0x2c/0x48 [ 18.848685] kmem_cache_free+0xf0/0x468 [ 18.848735] kmem_cache_invalid_free+0x184/0x3c8 [ 18.848808] kunit_try_run_case+0x170/0x3f0 [ 18.848883] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.848937] kthread+0x328/0x630 [ 18.848999] ret_from_fork+0x10/0x20 [ 18.849275] [ 18.849325] Allocated by task 211: [ 18.849385] kasan_save_stack+0x3c/0x68 [ 18.849430] kasan_save_track+0x20/0x40 [ 18.849510] kasan_save_alloc_info+0x40/0x58 [ 18.849669] __kasan_slab_alloc+0xa8/0xb0 [ 18.849744] kmem_cache_alloc_noprof+0x10c/0x398 [ 18.849816] kmem_cache_invalid_free+0x12c/0x3c8 [ 18.849950] kunit_try_run_case+0x170/0x3f0 [ 18.850124] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.850169] kthread+0x328/0x630 [ 18.850209] ret_from_fork+0x10/0x20 [ 18.850245] [ 18.850266] The buggy address belongs to the object at fff00000c56f5000 [ 18.850266] which belongs to the cache test_cache of size 200 [ 18.850733] The buggy address is located 1 bytes inside of [ 18.850733] 200-byte region [fff00000c56f5000, fff00000c56f50c8) [ 18.850866] [ 18.851041] The buggy address belongs to the physical page: [ 18.851224] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1056f5 [ 18.851385] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.851521] page_type: f5(slab) [ 18.851560] raw: 0bfffe0000000000 fff00000c1b588c0 dead000000000122 0000000000000000 [ 18.851652] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 18.851958] page dumped because: kasan: bad access detected [ 18.852127] [ 18.852318] Memory state around the buggy address: [ 18.852463] fff00000c56f4f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.852548] fff00000c56f4f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.852607] >fff00000c56f5000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 18.852759] ^ [ 18.852790] fff00000c56f5080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 18.852863] fff00000c56f5100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.853075] ==================================================================
[ 12.349295] ================================================================== [ 12.349780] BUG: KASAN: invalid-free in kmem_cache_invalid_free+0x1d8/0x460 [ 12.350114] Free of addr ffff888103a0c001 by task kunit_try_catch/228 [ 12.350397] [ 12.350524] CPU: 0 UID: 0 PID: 228 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 12.350569] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.350581] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.350603] Call Trace: [ 12.350617] <TASK> [ 12.350635] dump_stack_lvl+0x73/0xb0 [ 12.350667] print_report+0xd1/0x650 [ 12.350690] ? __virt_addr_valid+0x1db/0x2d0 [ 12.350715] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.350737] ? kmem_cache_invalid_free+0x1d8/0x460 [ 12.350762] kasan_report_invalid_free+0x10a/0x130 [ 12.350786] ? kmem_cache_invalid_free+0x1d8/0x460 [ 12.350812] ? kmem_cache_invalid_free+0x1d8/0x460 [ 12.350835] check_slab_allocation+0x11f/0x130 [ 12.350857] __kasan_slab_pre_free+0x28/0x40 [ 12.350878] kmem_cache_free+0xed/0x420 [ 12.350898] ? kmem_cache_alloc_noprof+0x123/0x3f0 [ 12.350918] ? kmem_cache_invalid_free+0x1d8/0x460 [ 12.350957] kmem_cache_invalid_free+0x1d8/0x460 [ 12.350981] ? __pfx_kmem_cache_invalid_free+0x10/0x10 [ 12.351004] ? finish_task_switch.isra.0+0x153/0x700 [ 12.351028] ? __switch_to+0x47/0xf50 [ 12.351056] ? __pfx_read_tsc+0x10/0x10 [ 12.351077] ? ktime_get_ts64+0x86/0x230 [ 12.351102] kunit_try_run_case+0x1a5/0x480 [ 12.351132] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.351153] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.351177] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.351200] ? __kthread_parkme+0x82/0x180 [ 12.351221] ? preempt_count_sub+0x50/0x80 [ 12.351243] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.351266] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.351288] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.351310] kthread+0x337/0x6f0 [ 12.351329] ? trace_preempt_on+0x20/0xc0 [ 12.351353] ? __pfx_kthread+0x10/0x10 [ 12.351373] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.351393] ? calculate_sigpending+0x7b/0xa0 [ 12.351417] ? __pfx_kthread+0x10/0x10 [ 12.351440] ret_from_fork+0x116/0x1d0 [ 12.351458] ? __pfx_kthread+0x10/0x10 [ 12.351478] ret_from_fork_asm+0x1a/0x30 [ 12.351508] </TASK> [ 12.351520] [ 12.359941] Allocated by task 228: [ 12.360130] kasan_save_stack+0x45/0x70 [ 12.360592] kasan_save_track+0x18/0x40 [ 12.360739] kasan_save_alloc_info+0x3b/0x50 [ 12.360965] __kasan_slab_alloc+0x91/0xa0 [ 12.361205] kmem_cache_alloc_noprof+0x123/0x3f0 [ 12.361406] kmem_cache_invalid_free+0x157/0x460 [ 12.361689] kunit_try_run_case+0x1a5/0x480 [ 12.361862] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.362099] kthread+0x337/0x6f0 [ 12.362271] ret_from_fork+0x116/0x1d0 [ 12.362456] ret_from_fork_asm+0x1a/0x30 [ 12.362600] [ 12.362672] The buggy address belongs to the object at ffff888103a0c000 [ 12.362672] which belongs to the cache test_cache of size 200 [ 12.363127] The buggy address is located 1 bytes inside of [ 12.363127] 200-byte region [ffff888103a0c000, ffff888103a0c0c8) [ 12.363707] [ 12.363807] The buggy address belongs to the physical page: [ 12.364259] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103a0c [ 12.364564] flags: 0x200000000000000(node=0|zone=2) [ 12.364818] page_type: f5(slab) [ 12.365015] raw: 0200000000000000 ffff888101dc2500 dead000000000122 0000000000000000 [ 12.365555] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 12.365859] page dumped because: kasan: bad access detected [ 12.366082] [ 12.366179] Memory state around the buggy address: [ 12.366386] ffff888103a0bf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.366693] ffff888103a0bf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.367141] >ffff888103a0c000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.367360] ^ [ 12.367477] ffff888103a0c080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 12.367913] ffff888103a0c100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.368190] ==================================================================