Date
July 5, 2025, 11:09 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 20.061784] ================================================================== [ 20.061957] BUG: KASAN: invalid-free in kmem_cache_invalid_free+0x184/0x3c8 [ 20.062120] Free of addr fff00000c7931001 by task kunit_try_catch/212 [ 20.062249] [ 20.062416] CPU: 0 UID: 0 PID: 212 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 20.062658] Tainted: [B]=BAD_PAGE, [N]=TEST [ 20.062721] Hardware name: linux,dummy-virt (DT) [ 20.062821] Call trace: [ 20.062873] show_stack+0x20/0x38 (C) [ 20.062984] dump_stack_lvl+0x8c/0xd0 [ 20.063088] print_report+0x118/0x608 [ 20.063177] kasan_report_invalid_free+0xc0/0xe8 [ 20.063282] check_slab_allocation+0xfc/0x108 [ 20.063397] __kasan_slab_pre_free+0x2c/0x48 [ 20.063548] kmem_cache_free+0xf0/0x468 [ 20.063657] kmem_cache_invalid_free+0x184/0x3c8 [ 20.063755] kunit_try_run_case+0x170/0x3f0 [ 20.063843] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.063945] kthread+0x328/0x630 [ 20.064027] ret_from_fork+0x10/0x20 [ 20.064126] [ 20.064162] Allocated by task 212: [ 20.064239] kasan_save_stack+0x3c/0x68 [ 20.064347] kasan_save_track+0x20/0x40 [ 20.064446] kasan_save_alloc_info+0x40/0x58 [ 20.064544] __kasan_slab_alloc+0xa8/0xb0 [ 20.064652] kmem_cache_alloc_noprof+0x10c/0x398 [ 20.064741] kmem_cache_invalid_free+0x12c/0x3c8 [ 20.064853] kunit_try_run_case+0x170/0x3f0 [ 20.064986] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.065109] kthread+0x328/0x630 [ 20.065197] ret_from_fork+0x10/0x20 [ 20.065269] [ 20.065310] The buggy address belongs to the object at fff00000c7931000 [ 20.065310] which belongs to the cache test_cache of size 200 [ 20.065433] The buggy address is located 1 bytes inside of [ 20.065433] 200-byte region [fff00000c7931000, fff00000c79310c8) [ 20.065584] [ 20.065648] The buggy address belongs to the physical page: [ 20.065716] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107931 [ 20.065830] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 20.065933] page_type: f5(slab) [ 20.066009] raw: 0bfffe0000000000 fff00000c1afab40 dead000000000122 0000000000000000 [ 20.066109] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 20.066192] page dumped because: kasan: bad access detected [ 20.066288] [ 20.066341] Memory state around the buggy address: [ 20.066425] fff00000c7930f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.066553] fff00000c7930f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.066693] >fff00000c7931000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 20.066818] ^ [ 20.066902] fff00000c7931080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 20.067040] fff00000c7931100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.067159] ==================================================================
[ 14.458891] ================================================================== [ 14.459433] BUG: KASAN: invalid-free in kmem_cache_invalid_free+0x1d8/0x460 [ 14.459755] Free of addr ffff8881038df001 by task kunit_try_catch/228 [ 14.460278] [ 14.460575] CPU: 0 UID: 0 PID: 228 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 14.460637] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.460663] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.460692] Call Trace: [ 14.460709] <TASK> [ 14.460734] dump_stack_lvl+0x73/0xb0 [ 14.460775] print_report+0xd1/0x650 [ 14.461317] ? __virt_addr_valid+0x1db/0x2d0 [ 14.461356] ? kasan_complete_mode_report_info+0x2a/0x200 [ 14.461383] ? kmem_cache_invalid_free+0x1d8/0x460 [ 14.461412] kasan_report_invalid_free+0x10a/0x130 [ 14.461441] ? kmem_cache_invalid_free+0x1d8/0x460 [ 14.461472] ? kmem_cache_invalid_free+0x1d8/0x460 [ 14.461501] check_slab_allocation+0x11f/0x130 [ 14.461526] __kasan_slab_pre_free+0x28/0x40 [ 14.461550] kmem_cache_free+0xed/0x420 [ 14.461574] ? kasan_save_track+0x18/0x40 [ 14.461597] ? kasan_save_stack+0x45/0x70 [ 14.461619] ? kmem_cache_invalid_free+0x1d8/0x460 [ 14.461663] ? kmem_cache_invalid_free+0x157/0x460 [ 14.461694] kmem_cache_invalid_free+0x1d8/0x460 [ 14.461722] ? __pfx_kmem_cache_invalid_free+0x10/0x10 [ 14.461750] ? finish_task_switch.isra.0+0x153/0x700 [ 14.461790] ? __switch_to+0x47/0xf50 [ 14.461827] ? __pfx_read_tsc+0x10/0x10 [ 14.461853] ? ktime_get_ts64+0x86/0x230 [ 14.461883] kunit_try_run_case+0x1a5/0x480 [ 14.461914] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.461940] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 14.461970] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 14.461997] ? __kthread_parkme+0x82/0x180 [ 14.462022] ? preempt_count_sub+0x50/0x80 [ 14.462049] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.462076] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.462103] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.462130] kthread+0x337/0x6f0 [ 14.462153] ? trace_preempt_on+0x20/0xc0 [ 14.462181] ? __pfx_kthread+0x10/0x10 [ 14.462205] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.462229] ? calculate_sigpending+0x7b/0xa0 [ 14.462258] ? __pfx_kthread+0x10/0x10 [ 14.462283] ret_from_fork+0x116/0x1d0 [ 14.462306] ? __pfx_kthread+0x10/0x10 [ 14.462330] ret_from_fork_asm+0x1a/0x30 [ 14.462367] </TASK> [ 14.462382] [ 14.474870] Allocated by task 228: [ 14.475326] kasan_save_stack+0x45/0x70 [ 14.475558] kasan_save_track+0x18/0x40 [ 14.475735] kasan_save_alloc_info+0x3b/0x50 [ 14.476233] __kasan_slab_alloc+0x91/0xa0 [ 14.476591] kmem_cache_alloc_noprof+0x123/0x3f0 [ 14.476838] kmem_cache_invalid_free+0x157/0x460 [ 14.477184] kunit_try_run_case+0x1a5/0x480 [ 14.477367] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.477580] kthread+0x337/0x6f0 [ 14.477743] ret_from_fork+0x116/0x1d0 [ 14.477934] ret_from_fork_asm+0x1a/0x30 [ 14.478263] [ 14.478412] The buggy address belongs to the object at ffff8881038df000 [ 14.478412] which belongs to the cache test_cache of size 200 [ 14.479167] The buggy address is located 1 bytes inside of [ 14.479167] 200-byte region [ffff8881038df000, ffff8881038df0c8) [ 14.480220] [ 14.480359] The buggy address belongs to the physical page: [ 14.480634] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1038df [ 14.480946] flags: 0x200000000000000(node=0|zone=2) [ 14.481194] page_type: f5(slab) [ 14.481476] raw: 0200000000000000 ffff888101b9bb40 dead000000000122 0000000000000000 [ 14.482449] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 14.482981] page dumped because: kasan: bad access detected [ 14.483267] [ 14.483353] Memory state around the buggy address: [ 14.483579] ffff8881038def00: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [ 14.484016] ffff8881038def80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.484416] >ffff8881038df000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 14.484724] ^ [ 14.485185] ffff8881038df080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 14.485506] ffff8881038df100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.485926] ==================================================================