Date
June 23, 2025, 7:07 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 34.116563] ================================================================== [ 34.116700] BUG: KASAN: invalid-free in kmem_cache_invalid_free+0x184/0x3c8 [ 34.116846] Free of addr fff00000c6469001 by task kunit_try_catch/223 [ 34.116947] [ 34.117435] CPU: 1 UID: 0 PID: 223 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc3-next-20250623 #1 PREEMPT [ 34.118175] Tainted: [B]=BAD_PAGE, [N]=TEST [ 34.118252] Hardware name: linux,dummy-virt (DT) [ 34.118343] Call trace: [ 34.118404] show_stack+0x20/0x38 (C) [ 34.119426] dump_stack_lvl+0x8c/0xd0 [ 34.119722] print_report+0x118/0x608 [ 34.119863] kasan_report_invalid_free+0xc0/0xe8 [ 34.120250] check_slab_allocation+0xfc/0x108 [ 34.120388] __kasan_slab_pre_free+0x2c/0x48 [ 34.120640] kmem_cache_free+0xf0/0x468 [ 34.120994] kmem_cache_invalid_free+0x184/0x3c8 [ 34.121173] kunit_try_run_case+0x170/0x3f0 [ 34.121508] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 34.121639] kthread+0x328/0x630 [ 34.121753] ret_from_fork+0x10/0x20 [ 34.121871] [ 34.121966] Allocated by task 223: [ 34.122063] kasan_save_stack+0x3c/0x68 [ 34.122183] kasan_save_track+0x20/0x40 [ 34.122367] kasan_save_alloc_info+0x40/0x58 [ 34.122544] __kasan_slab_alloc+0xa8/0xb0 [ 34.122962] kmem_cache_alloc_noprof+0x10c/0x398 [ 34.123512] kmem_cache_invalid_free+0x12c/0x3c8 [ 34.123644] kunit_try_run_case+0x170/0x3f0 [ 34.123759] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 34.123881] kthread+0x328/0x630 [ 34.123977] ret_from_fork+0x10/0x20 [ 34.124095] [ 34.124143] The buggy address belongs to the object at fff00000c6469000 [ 34.124143] which belongs to the cache test_cache of size 200 [ 34.125010] The buggy address is located 1 bytes inside of [ 34.125010] 200-byte region [fff00000c6469000, fff00000c64690c8) [ 34.125267] [ 34.125420] The buggy address belongs to the physical page: [ 34.125519] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106469 [ 34.125782] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 34.125973] page_type: f5(slab) [ 34.126100] raw: 0bfffe0000000000 fff00000c56418c0 dead000000000122 0000000000000000 [ 34.126702] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 34.126984] page dumped because: kasan: bad access detected [ 34.127529] [ 34.127728] Memory state around the buggy address: [ 34.127852] fff00000c6468f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 34.128097] fff00000c6468f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 34.128487] >fff00000c6469000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 34.128587] ^ [ 34.128864] fff00000c6469080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 34.128997] fff00000c6469100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 34.129113] ==================================================================
[ 22.570766] ================================================================== [ 22.571920] BUG: KASAN: invalid-free in kmem_cache_invalid_free+0x1d8/0x460 [ 22.572490] Free of addr ffff888102c0f001 by task kunit_try_catch/240 [ 22.573061] [ 22.573410] CPU: 1 UID: 0 PID: 240 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc3-next-20250623 #1 PREEMPT(voluntary) [ 22.573504] Tainted: [B]=BAD_PAGE, [N]=TEST [ 22.573524] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 22.573559] Call Trace: [ 22.573585] <TASK> [ 22.573620] dump_stack_lvl+0x73/0xb0 [ 22.573683] print_report+0xd1/0x650 [ 22.573721] ? __virt_addr_valid+0x1db/0x2d0 [ 22.573760] ? kasan_complete_mode_report_info+0x2a/0x200 [ 22.573781] ? kmem_cache_invalid_free+0x1d8/0x460 [ 22.573802] kasan_report_invalid_free+0x10a/0x130 [ 22.573822] ? kmem_cache_invalid_free+0x1d8/0x460 [ 22.573866] ? kmem_cache_invalid_free+0x1d8/0x460 [ 22.573890] check_slab_allocation+0x11f/0x130 [ 22.573909] __kasan_slab_pre_free+0x28/0x40 [ 22.573926] kmem_cache_free+0xed/0x420 [ 22.573943] ? kmem_cache_alloc_noprof+0x123/0x3f0 [ 22.573963] ? kmem_cache_invalid_free+0x1d8/0x460 [ 22.573985] kmem_cache_invalid_free+0x1d8/0x460 [ 22.574006] ? __pfx_kmem_cache_invalid_free+0x10/0x10 [ 22.574038] ? finish_task_switch.isra.0+0x153/0x700 [ 22.574059] ? __switch_to+0x47/0xf50 [ 22.574116] ? __pfx_read_tsc+0x10/0x10 [ 22.574158] ? ktime_get_ts64+0x86/0x230 [ 22.574199] kunit_try_run_case+0x1a5/0x480 [ 22.574236] ? __pfx_kunit_try_run_case+0x10/0x10 [ 22.574269] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 22.574304] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 22.574336] ? __kthread_parkme+0x82/0x180 [ 22.574366] ? preempt_count_sub+0x50/0x80 [ 22.574418] ? __pfx_kunit_try_run_case+0x10/0x10 [ 22.574453] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 22.574487] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 22.574520] kthread+0x337/0x6f0 [ 22.574542] ? trace_preempt_on+0x20/0xc0 [ 22.574566] ? __pfx_kthread+0x10/0x10 [ 22.574584] ? _raw_spin_unlock_irq+0x47/0x80 [ 22.574603] ? calculate_sigpending+0x7b/0xa0 [ 22.574625] ? __pfx_kthread+0x10/0x10 [ 22.574644] ret_from_fork+0x116/0x1d0 [ 22.574662] ? __pfx_kthread+0x10/0x10 [ 22.574680] ret_from_fork_asm+0x1a/0x30 [ 22.574709] </TASK> [ 22.574722] [ 22.586750] Allocated by task 240: [ 22.587063] kasan_save_stack+0x45/0x70 [ 22.587611] kasan_save_track+0x18/0x40 [ 22.587901] kasan_save_alloc_info+0x3b/0x50 [ 22.588318] __kasan_slab_alloc+0x91/0xa0 [ 22.588576] kmem_cache_alloc_noprof+0x123/0x3f0 [ 22.588868] kmem_cache_invalid_free+0x157/0x460 [ 22.589475] kunit_try_run_case+0x1a5/0x480 [ 22.589724] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 22.590204] kthread+0x337/0x6f0 [ 22.590366] ret_from_fork+0x116/0x1d0 [ 22.590518] ret_from_fork_asm+0x1a/0x30 [ 22.590660] [ 22.590742] The buggy address belongs to the object at ffff888102c0f000 [ 22.590742] which belongs to the cache test_cache of size 200 [ 22.591653] The buggy address is located 1 bytes inside of [ 22.591653] 200-byte region [ffff888102c0f000, ffff888102c0f0c8) [ 22.592255] [ 22.592428] The buggy address belongs to the physical page: [ 22.593107] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102c0f [ 22.593644] flags: 0x200000000000000(node=0|zone=2) [ 22.594040] page_type: f5(slab) [ 22.594692] raw: 0200000000000000 ffff888101ba5c80 dead000000000122 0000000000000000 [ 22.595065] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 22.595693] page dumped because: kasan: bad access detected [ 22.596064] [ 22.596501] Memory state around the buggy address: [ 22.596746] ffff888102c0ef00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.597435] ffff888102c0ef80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.598153] >ffff888102c0f000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 22.598469] ^ [ 22.598725] ffff888102c0f080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 22.599947] ffff888102c0f100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.600354] ==================================================================