Date
July 2, 2025, 11:09 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.926782] ================================================================== [ 18.926859] BUG: KASAN: double-free in kmem_cache_double_free+0x190/0x3c8 [ 18.926961] Free of addr fff00000c7080000 by task kunit_try_catch/209 [ 18.927006] [ 18.927049] CPU: 0 UID: 0 PID: 209 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 18.927162] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.927234] Hardware name: linux,dummy-virt (DT) [ 18.927270] Call trace: [ 18.927320] show_stack+0x20/0x38 (C) [ 18.927429] dump_stack_lvl+0x8c/0xd0 [ 18.927482] print_report+0x118/0x608 [ 18.927532] kasan_report_invalid_free+0xc0/0xe8 [ 18.927828] check_slab_allocation+0xd4/0x108 [ 18.927881] __kasan_slab_pre_free+0x2c/0x48 [ 18.927947] kmem_cache_free+0xf0/0x468 [ 18.928027] kmem_cache_double_free+0x190/0x3c8 [ 18.928122] kunit_try_run_case+0x170/0x3f0 [ 18.928221] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.928306] kthread+0x328/0x630 [ 18.928452] ret_from_fork+0x10/0x20 [ 18.928514] [ 18.928533] Allocated by task 209: [ 18.928623] kasan_save_stack+0x3c/0x68 [ 18.928666] kasan_save_track+0x20/0x40 [ 18.928921] kasan_save_alloc_info+0x40/0x58 [ 18.928963] __kasan_slab_alloc+0xa8/0xb0 [ 18.929002] kmem_cache_alloc_noprof+0x10c/0x398 [ 18.929042] kmem_cache_double_free+0x12c/0x3c8 [ 18.929081] kunit_try_run_case+0x170/0x3f0 [ 18.929134] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.929263] kthread+0x328/0x630 [ 18.929345] ret_from_fork+0x10/0x20 [ 18.929382] [ 18.929425] Freed by task 209: [ 18.929523] kasan_save_stack+0x3c/0x68 [ 18.929695] kasan_save_track+0x20/0x40 [ 18.929800] kasan_save_free_info+0x4c/0x78 [ 18.929927] __kasan_slab_free+0x6c/0x98 [ 18.930041] kmem_cache_free+0x260/0x468 [ 18.930138] kmem_cache_double_free+0x140/0x3c8 [ 18.930215] kunit_try_run_case+0x170/0x3f0 [ 18.930253] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.930306] kthread+0x328/0x630 [ 18.930343] ret_from_fork+0x10/0x20 [ 18.930385] [ 18.930404] The buggy address belongs to the object at fff00000c7080000 [ 18.930404] which belongs to the cache test_cache of size 200 [ 18.930472] The buggy address is located 0 bytes inside of [ 18.930472] 200-byte region [fff00000c7080000, fff00000c70800c8) [ 18.930555] [ 18.930600] The buggy address belongs to the physical page: [ 18.930635] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107080 [ 18.930691] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.930767] page_type: f5(slab) [ 18.930808] raw: 0bfffe0000000000 fff00000c5834b40 dead000000000122 0000000000000000 [ 18.930863] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 18.930964] page dumped because: kasan: bad access detected [ 18.930996] [ 18.931014] Memory state around the buggy address: [ 18.931085] fff00000c707ff00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 18.931129] fff00000c707ff80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 18.931172] >fff00000c7080000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 18.931230] ^ [ 18.931258] fff00000c7080080: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc [ 18.931302] fff00000c7080100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.931350] ==================================================================
[ 12.092243] ================================================================== [ 12.093102] BUG: KASAN: double-free in kmem_cache_double_free+0x1e5/0x480 [ 12.093572] Free of addr ffff88810397d000 by task kunit_try_catch/228 [ 12.094011] [ 12.094249] CPU: 1 UID: 0 PID: 228 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 12.094298] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.094309] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.094329] Call Trace: [ 12.094340] <TASK> [ 12.094359] dump_stack_lvl+0x73/0xb0 [ 12.094400] print_report+0xd1/0x650 [ 12.094422] ? __virt_addr_valid+0x1db/0x2d0 [ 12.094445] ? kasan_complete_mode_report_info+0x64/0x200 [ 12.094466] ? kmem_cache_double_free+0x1e5/0x480 [ 12.094490] kasan_report_invalid_free+0x10a/0x130 [ 12.094513] ? kmem_cache_double_free+0x1e5/0x480 [ 12.094537] ? kmem_cache_double_free+0x1e5/0x480 [ 12.094560] check_slab_allocation+0x101/0x130 [ 12.094580] __kasan_slab_pre_free+0x28/0x40 [ 12.094600] kmem_cache_free+0xed/0x420 [ 12.094619] ? kmem_cache_alloc_noprof+0x123/0x3f0 [ 12.094638] ? kmem_cache_double_free+0x1e5/0x480 [ 12.094664] kmem_cache_double_free+0x1e5/0x480 [ 12.094688] ? __pfx_kmem_cache_double_free+0x10/0x10 [ 12.094735] ? finish_task_switch.isra.0+0x153/0x700 [ 12.094757] ? __switch_to+0x47/0xf50 [ 12.094785] ? __pfx_read_tsc+0x10/0x10 [ 12.094805] ? ktime_get_ts64+0x86/0x230 [ 12.094829] kunit_try_run_case+0x1a5/0x480 [ 12.094853] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.094873] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.094897] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.094918] ? __kthread_parkme+0x82/0x180 [ 12.094938] ? preempt_count_sub+0x50/0x80 [ 12.094959] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.094981] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.095002] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.095023] kthread+0x337/0x6f0 [ 12.095042] ? trace_preempt_on+0x20/0xc0 [ 12.095065] ? __pfx_kthread+0x10/0x10 [ 12.095084] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.095103] ? calculate_sigpending+0x7b/0xa0 [ 12.095126] ? __pfx_kthread+0x10/0x10 [ 12.095146] ret_from_fork+0x116/0x1d0 [ 12.095163] ? __pfx_kthread+0x10/0x10 [ 12.095182] ret_from_fork_asm+0x1a/0x30 [ 12.095211] </TASK> [ 12.095222] [ 12.109927] Allocated by task 228: [ 12.110290] kasan_save_stack+0x45/0x70 [ 12.110941] kasan_save_track+0x18/0x40 [ 12.111431] kasan_save_alloc_info+0x3b/0x50 [ 12.111804] __kasan_slab_alloc+0x91/0xa0 [ 12.111950] kmem_cache_alloc_noprof+0x123/0x3f0 [ 12.112106] kmem_cache_double_free+0x14f/0x480 [ 12.112260] kunit_try_run_case+0x1a5/0x480 [ 12.112423] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.112664] kthread+0x337/0x6f0 [ 12.112913] ret_from_fork+0x116/0x1d0 [ 12.113054] ret_from_fork_asm+0x1a/0x30 [ 12.113226] [ 12.113498] Freed by task 228: [ 12.113856] kasan_save_stack+0x45/0x70 [ 12.114338] kasan_save_track+0x18/0x40 [ 12.114485] kasan_save_free_info+0x3f/0x60 [ 12.114648] __kasan_slab_free+0x56/0x70 [ 12.114838] kmem_cache_free+0x249/0x420 [ 12.115267] kmem_cache_double_free+0x16a/0x480 [ 12.115801] kunit_try_run_case+0x1a5/0x480 [ 12.116239] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.116428] kthread+0x337/0x6f0 [ 12.116548] ret_from_fork+0x116/0x1d0 [ 12.117003] ret_from_fork_asm+0x1a/0x30 [ 12.117524] [ 12.117710] The buggy address belongs to the object at ffff88810397d000 [ 12.117710] which belongs to the cache test_cache of size 200 [ 12.119015] The buggy address is located 0 bytes inside of [ 12.119015] 200-byte region [ffff88810397d000, ffff88810397d0c8) [ 12.119686] [ 12.119872] The buggy address belongs to the physical page: [ 12.120450] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10397d [ 12.121214] flags: 0x200000000000000(node=0|zone=2) [ 12.121391] page_type: f5(slab) [ 12.121514] raw: 0200000000000000 ffff888100fae640 dead000000000122 0000000000000000 [ 12.121798] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 12.122207] page dumped because: kasan: bad access detected [ 12.122527] [ 12.122653] Memory state around the buggy address: [ 12.122961] ffff88810397cf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.123269] ffff88810397cf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.123614] >ffff88810397d000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.124082] ^ [ 12.124199] ffff88810397d080: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc [ 12.124731] ffff88810397d100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.125042] ==================================================================