Date
July 2, 2025, 11:09 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.951433] ================================================================== [ 18.951505] BUG: KASAN: invalid-free in kmem_cache_invalid_free+0x184/0x3c8 [ 18.951601] Free of addr fff00000c707c001 by task kunit_try_catch/211 [ 18.951647] [ 18.951688] CPU: 0 UID: 0 PID: 211 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 18.951775] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.951812] Hardware name: linux,dummy-virt (DT) [ 18.951854] Call trace: [ 18.951879] show_stack+0x20/0x38 (C) [ 18.951934] dump_stack_lvl+0x8c/0xd0 [ 18.951986] print_report+0x118/0x608 [ 18.952034] kasan_report_invalid_free+0xc0/0xe8 [ 18.952085] check_slab_allocation+0xfc/0x108 [ 18.952132] __kasan_slab_pre_free+0x2c/0x48 [ 18.952181] kmem_cache_free+0xf0/0x468 [ 18.952229] kmem_cache_invalid_free+0x184/0x3c8 [ 18.952277] kunit_try_run_case+0x170/0x3f0 [ 18.952326] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.952388] kthread+0x328/0x630 [ 18.952433] ret_from_fork+0x10/0x20 [ 18.952483] [ 18.952501] Allocated by task 211: [ 18.952542] kasan_save_stack+0x3c/0x68 [ 18.952593] kasan_save_track+0x20/0x40 [ 18.952630] kasan_save_alloc_info+0x40/0x58 [ 18.952670] __kasan_slab_alloc+0xa8/0xb0 [ 18.953404] kmem_cache_alloc_noprof+0x10c/0x398 [ 18.953590] kmem_cache_invalid_free+0x12c/0x3c8 [ 18.953727] kunit_try_run_case+0x170/0x3f0 [ 18.953771] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.953826] kthread+0x328/0x630 [ 18.954217] ret_from_fork+0x10/0x20 [ 18.954287] [ 18.954367] The buggy address belongs to the object at fff00000c707c000 [ 18.954367] which belongs to the cache test_cache of size 200 [ 18.954616] The buggy address is located 1 bytes inside of [ 18.954616] 200-byte region [fff00000c707c000, fff00000c707c0c8) [ 18.954869] [ 18.954978] The buggy address belongs to the physical page: [ 18.955055] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10707c [ 18.955319] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.955462] page_type: f5(slab) [ 18.955551] raw: 0bfffe0000000000 fff00000c5834c80 dead000000000122 0000000000000000 [ 18.955681] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 18.955743] page dumped because: kasan: bad access detected [ 18.956102] [ 18.956164] Memory state around the buggy address: [ 18.956351] fff00000c707bf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.956463] fff00000c707bf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.956604] >fff00000c707c000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 18.956872] ^ [ 18.956939] fff00000c707c080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 18.957030] fff00000c707c100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.957073] ==================================================================
[ 12.132881] ================================================================== [ 12.133421] BUG: KASAN: invalid-free in kmem_cache_invalid_free+0x1d8/0x460 [ 12.133790] Free of addr ffff88810397e001 by task kunit_try_catch/230 [ 12.134144] [ 12.134264] CPU: 1 UID: 0 PID: 230 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 12.134311] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.134322] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.134342] Call Trace: [ 12.134355] <TASK> [ 12.134384] dump_stack_lvl+0x73/0xb0 [ 12.134414] print_report+0xd1/0x650 [ 12.134436] ? __virt_addr_valid+0x1db/0x2d0 [ 12.134461] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.134482] ? kmem_cache_invalid_free+0x1d8/0x460 [ 12.134507] kasan_report_invalid_free+0x10a/0x130 [ 12.134530] ? kmem_cache_invalid_free+0x1d8/0x460 [ 12.134555] ? kmem_cache_invalid_free+0x1d8/0x460 [ 12.134578] check_slab_allocation+0x11f/0x130 [ 12.134598] __kasan_slab_pre_free+0x28/0x40 [ 12.134617] kmem_cache_free+0xed/0x420 [ 12.134637] ? kmem_cache_alloc_noprof+0x123/0x3f0 [ 12.134655] ? kmem_cache_invalid_free+0x1d8/0x460 [ 12.134680] kmem_cache_invalid_free+0x1d8/0x460 [ 12.134715] ? __pfx_kmem_cache_invalid_free+0x10/0x10 [ 12.134737] ? finish_task_switch.isra.0+0x153/0x700 [ 12.134760] ? __switch_to+0x47/0xf50 [ 12.134799] ? __pfx_read_tsc+0x10/0x10 [ 12.134819] ? ktime_get_ts64+0x86/0x230 [ 12.134843] kunit_try_run_case+0x1a5/0x480 [ 12.134867] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.134888] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.134910] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.134931] ? __kthread_parkme+0x82/0x180 [ 12.134951] ? preempt_count_sub+0x50/0x80 [ 12.134972] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.135003] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.135025] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.135046] kthread+0x337/0x6f0 [ 12.135064] ? trace_preempt_on+0x20/0xc0 [ 12.135087] ? __pfx_kthread+0x10/0x10 [ 12.135107] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.135127] ? calculate_sigpending+0x7b/0xa0 [ 12.135150] ? __pfx_kthread+0x10/0x10 [ 12.135170] ret_from_fork+0x116/0x1d0 [ 12.135187] ? __pfx_kthread+0x10/0x10 [ 12.135206] ret_from_fork_asm+0x1a/0x30 [ 12.135235] </TASK> [ 12.135246] [ 12.145560] Allocated by task 230: [ 12.145727] kasan_save_stack+0x45/0x70 [ 12.145936] kasan_save_track+0x18/0x40 [ 12.146130] kasan_save_alloc_info+0x3b/0x50 [ 12.146340] __kasan_slab_alloc+0x91/0xa0 [ 12.146992] kmem_cache_alloc_noprof+0x123/0x3f0 [ 12.147173] kmem_cache_invalid_free+0x157/0x460 [ 12.147545] kunit_try_run_case+0x1a5/0x480 [ 12.147849] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.148092] kthread+0x337/0x6f0 [ 12.148419] ret_from_fork+0x116/0x1d0 [ 12.148615] ret_from_fork_asm+0x1a/0x30 [ 12.148948] [ 12.149049] The buggy address belongs to the object at ffff88810397e000 [ 12.149049] which belongs to the cache test_cache of size 200 [ 12.149742] The buggy address is located 1 bytes inside of [ 12.149742] 200-byte region [ffff88810397e000, ffff88810397e0c8) [ 12.150313] [ 12.150400] The buggy address belongs to the physical page: [ 12.150787] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10397e [ 12.151258] flags: 0x200000000000000(node=0|zone=2) [ 12.151575] page_type: f5(slab) [ 12.151711] raw: 0200000000000000 ffff888100fae780 dead000000000122 0000000000000000 [ 12.152277] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 12.152700] page dumped because: kasan: bad access detected [ 12.152933] [ 12.153029] Memory state around the buggy address: [ 12.153332] ffff88810397df00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.153649] ffff88810397df80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.154118] >ffff88810397e000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.154504] ^ [ 12.154754] ffff88810397e080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 12.155011] ffff88810397e100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.155443] ==================================================================