Date
July 16, 2025, 12:11 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 31.198799] ================================================================== [ 31.199079] BUG: KASAN: invalid-free in kmem_cache_invalid_free+0x184/0x3c8 [ 31.199152] Free of addr fff00000c9a59001 by task kunit_try_catch/242 [ 31.199197] [ 31.199412] CPU: 0 UID: 0 PID: 242 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250716 #1 PREEMPT [ 31.199588] Tainted: [B]=BAD_PAGE, [N]=TEST [ 31.199625] Hardware name: linux,dummy-virt (DT) [ 31.199684] Call trace: [ 31.199709] show_stack+0x20/0x38 (C) [ 31.199836] dump_stack_lvl+0x8c/0xd0 [ 31.199893] print_report+0x118/0x5d0 [ 31.199936] kasan_report_invalid_free+0xc0/0xe8 [ 31.199984] check_slab_allocation+0xfc/0x108 [ 31.200035] __kasan_slab_pre_free+0x2c/0x48 [ 31.200373] kmem_cache_free+0xf0/0x468 [ 31.200521] kmem_cache_invalid_free+0x184/0x3c8 [ 31.200606] kunit_try_run_case+0x170/0x3f0 [ 31.200722] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.200811] kthread+0x328/0x630 [ 31.200909] ret_from_fork+0x10/0x20 [ 31.200990] [ 31.201008] Allocated by task 242: [ 31.201037] kasan_save_stack+0x3c/0x68 [ 31.201118] kasan_save_track+0x20/0x40 [ 31.201673] kasan_save_alloc_info+0x40/0x58 [ 31.201714] __kasan_slab_alloc+0xa8/0xb0 [ 31.201751] kmem_cache_alloc_noprof+0x10c/0x398 [ 31.203954] kmem_cache_invalid_free+0x12c/0x3c8 [ 31.204025] kunit_try_run_case+0x170/0x3f0 [ 31.205428] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.207790] kthread+0x328/0x630 [ 31.207853] ret_from_fork+0x10/0x20 [ 31.207892] [ 31.207912] The buggy address belongs to the object at fff00000c9a59000 [ 31.207912] which belongs to the cache test_cache of size 200 [ 31.207974] The buggy address is located 1 bytes inside of [ 31.207974] 200-byte region [fff00000c9a59000, fff00000c9a590c8) [ 31.208035] [ 31.208058] The buggy address belongs to the physical page: [ 31.208092] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x109a59 [ 31.208150] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 31.208201] page_type: f5(slab) [ 31.208240] raw: 0bfffe0000000000 fff00000c56a1a00 dead000000000122 0000000000000000 [ 31.208291] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 31.208333] page dumped because: kasan: bad access detected [ 31.208366] [ 31.208383] Memory state around the buggy address: [ 31.208415] fff00000c9a58f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 31.208461] fff00000c9a58f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 31.208522] >fff00000c9a59000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 31.208563] ^ [ 31.208589] fff00000c9a59080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 31.208632] fff00000c9a59100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.209405] ==================================================================
[ 24.032429] ================================================================== [ 24.033029] BUG: KASAN: invalid-free in kmem_cache_invalid_free+0x1d8/0x460 [ 24.033436] Free of addr ffff888106089001 by task kunit_try_catch/260 [ 24.033725] [ 24.033820] CPU: 1 UID: 0 PID: 260 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250716 #1 PREEMPT(voluntary) [ 24.033874] Tainted: [B]=BAD_PAGE, [N]=TEST [ 24.033886] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 24.033908] Call Trace: [ 24.033922] <TASK> [ 24.033942] dump_stack_lvl+0x73/0xb0 [ 24.033975] print_report+0xd1/0x610 [ 24.033998] ? __virt_addr_valid+0x1db/0x2d0 [ 24.034024] ? kasan_complete_mode_report_info+0x2a/0x200 [ 24.034049] ? kmem_cache_invalid_free+0x1d8/0x460 [ 24.034074] kasan_report_invalid_free+0x10a/0x130 [ 24.034097] ? kmem_cache_invalid_free+0x1d8/0x460 [ 24.034367] ? kmem_cache_invalid_free+0x1d8/0x460 [ 24.034391] check_slab_allocation+0x11f/0x130 [ 24.034413] __kasan_slab_pre_free+0x28/0x40 [ 24.034433] kmem_cache_free+0xed/0x420 [ 24.034454] ? kmem_cache_alloc_noprof+0x123/0x3f0 [ 24.034478] ? kmem_cache_invalid_free+0x1d8/0x460 [ 24.034504] kmem_cache_invalid_free+0x1d8/0x460 [ 24.034527] ? __pfx_kmem_cache_invalid_free+0x10/0x10 [ 24.034550] ? finish_task_switch.isra.0+0x153/0x700 [ 24.034573] ? __switch_to+0x47/0xf80 [ 24.034602] ? __pfx_read_tsc+0x10/0x10 [ 24.034624] ? ktime_get_ts64+0x86/0x230 [ 24.034654] kunit_try_run_case+0x1a5/0x480 [ 24.034680] ? __pfx_kunit_try_run_case+0x10/0x10 [ 24.034701] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 24.034725] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 24.034747] ? __kthread_parkme+0x82/0x180 [ 24.034768] ? preempt_count_sub+0x50/0x80 [ 24.034789] ? __pfx_kunit_try_run_case+0x10/0x10 [ 24.034812] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.034839] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 24.034865] kthread+0x337/0x6f0 [ 24.034941] ? trace_preempt_on+0x20/0xc0 [ 24.034966] ? __pfx_kthread+0x10/0x10 [ 24.034986] ? _raw_spin_unlock_irq+0x47/0x80 [ 24.035007] ? calculate_sigpending+0x7b/0xa0 [ 24.035031] ? __pfx_kthread+0x10/0x10 [ 24.035052] ret_from_fork+0x116/0x1d0 [ 24.035071] ? __pfx_kthread+0x10/0x10 [ 24.035092] ret_from_fork_asm+0x1a/0x30 [ 24.035123] </TASK> [ 24.035134] [ 24.043233] Allocated by task 260: [ 24.043431] kasan_save_stack+0x45/0x70 [ 24.043638] kasan_save_track+0x18/0x40 [ 24.044088] kasan_save_alloc_info+0x3b/0x50 [ 24.044322] __kasan_slab_alloc+0x91/0xa0 [ 24.044460] kmem_cache_alloc_noprof+0x123/0x3f0 [ 24.044615] kmem_cache_invalid_free+0x157/0x460 [ 24.044771] kunit_try_run_case+0x1a5/0x480 [ 24.044972] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.045220] kthread+0x337/0x6f0 [ 24.045426] ret_from_fork+0x116/0x1d0 [ 24.045624] ret_from_fork_asm+0x1a/0x30 [ 24.045831] [ 24.045898] The buggy address belongs to the object at ffff888106089000 [ 24.045898] which belongs to the cache test_cache of size 200 [ 24.046247] The buggy address is located 1 bytes inside of [ 24.046247] 200-byte region [ffff888106089000, ffff8881060890c8) [ 24.047023] [ 24.047137] The buggy address belongs to the physical page: [ 24.047650] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106089 [ 24.048038] flags: 0x200000000000000(node=0|zone=2) [ 24.048261] page_type: f5(slab) [ 24.048444] raw: 0200000000000000 ffff888106085140 dead000000000122 0000000000000000 [ 24.048775] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 24.049158] page dumped because: kasan: bad access detected [ 24.049390] [ 24.049455] Memory state around the buggy address: [ 24.049641] ffff888106088f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.050179] ffff888106088f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.050479] >ffff888106089000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 24.050802] ^ [ 24.051173] ffff888106089080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 24.051412] ffff888106089100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.051868] ==================================================================