Date
May 12, 2025, 6:12 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 19.548395] ================================================================== [ 19.549036] BUG: KASAN: double-free in kmem_cache_double_free+0x190/0x3c8 [ 19.549337] Free of addr fff00000c6572000 by task kunit_try_catch/198 [ 19.549583] [ 19.549723] CPU: 0 UID: 0 PID: 198 Comm: kunit_try_catch Tainted: G B N 6.14.7-rc1 #1 [ 19.549847] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.549880] Hardware name: linux,dummy-virt (DT) [ 19.549917] Call trace: [ 19.549959] show_stack+0x20/0x38 (C) [ 19.550026] dump_stack_lvl+0x8c/0xd0 [ 19.550105] print_report+0x118/0x608 [ 19.550165] kasan_report_invalid_free+0xc0/0xe8 [ 19.550221] check_slab_allocation+0xd4/0x108 [ 19.550278] __kasan_slab_pre_free+0x2c/0x48 [ 19.550334] kmem_cache_free+0xf0/0x470 [ 19.550389] kmem_cache_double_free+0x190/0x3c8 [ 19.550443] kunit_try_run_case+0x170/0x3f0 [ 19.550498] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.550871] kthread+0x318/0x620 [ 19.550951] ret_from_fork+0x10/0x20 [ 19.551010] [ 19.554580] Allocated by task 198: [ 19.554922] kasan_save_stack+0x3c/0x68 [ 19.555774] kasan_save_track+0x20/0x40 [ 19.556390] kasan_save_alloc_info+0x40/0x58 [ 19.556903] __kasan_slab_alloc+0xa8/0xb0 [ 19.557422] kmem_cache_alloc_noprof+0x10c/0x3a0 [ 19.557672] kmem_cache_double_free+0x12c/0x3c8 [ 19.557871] kunit_try_run_case+0x170/0x3f0 [ 19.558050] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.558276] kthread+0x318/0x620 [ 19.558426] ret_from_fork+0x10/0x20 [ 19.559190] [ 19.559944] Freed by task 198: [ 19.560265] kasan_save_stack+0x3c/0x68 [ 19.560636] kasan_save_track+0x20/0x40 [ 19.561006] kasan_save_free_info+0x4c/0x78 [ 19.561378] __kasan_slab_free+0x6c/0x98 [ 19.561773] kmem_cache_free+0x260/0x470 [ 19.562172] kmem_cache_double_free+0x140/0x3c8 [ 19.562949] kunit_try_run_case+0x170/0x3f0 [ 19.563774] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.564569] kthread+0x318/0x620 [ 19.565209] ret_from_fork+0x10/0x20 [ 19.565794] [ 19.565966] The buggy address belongs to the object at fff00000c6572000 [ 19.565966] which belongs to the cache test_cache of size 200 [ 19.567241] The buggy address is located 0 bytes inside of [ 19.567241] 200-byte region [fff00000c6572000, fff00000c65720c8) [ 19.568284] [ 19.568474] The buggy address belongs to the physical page: [ 19.569042] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106572 [ 19.569641] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 19.569898] page_type: f5(slab) [ 19.570083] raw: 0bfffe0000000000 fff00000c656d140 dead000000000122 0000000000000000 [ 19.570339] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 19.570573] page dumped because: kasan: bad access detected [ 19.572429] [ 19.572567] Memory state around the buggy address: [ 19.572765] fff00000c6571f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.573189] fff00000c6571f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.573514] >fff00000c6572000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 19.573880] ^ [ 19.574133] fff00000c6572080: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc [ 19.574448] fff00000c6572100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.575641] ==================================================================
[ 13.107717] ================================================================== [ 13.108557] BUG: KASAN: double-free in kmem_cache_double_free+0x1e6/0x490 [ 13.108906] Free of addr ffff888102ae5000 by task kunit_try_catch/217 [ 13.109242] [ 13.109332] CPU: 0 UID: 0 PID: 217 Comm: kunit_try_catch Tainted: G B N 6.14.7-rc1 #1 [ 13.109380] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.109392] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.109414] Call Trace: [ 13.109427] <TASK> [ 13.109448] dump_stack_lvl+0x73/0xb0 [ 13.109477] print_report+0xd1/0x650 [ 13.109499] ? __virt_addr_valid+0x1db/0x2d0 [ 13.109523] ? kasan_complete_mode_report_info+0x64/0x200 [ 13.109548] ? kmem_cache_double_free+0x1e6/0x490 [ 13.109571] kasan_report_invalid_free+0xfc/0x120 [ 13.109594] ? kmem_cache_double_free+0x1e6/0x490 [ 13.109618] ? kmem_cache_double_free+0x1e6/0x490 [ 13.109641] check_slab_allocation+0x101/0x130 [ 13.109661] __kasan_slab_pre_free+0x28/0x40 [ 13.109680] kmem_cache_free+0xee/0x420 [ 13.109699] ? kmem_cache_alloc_noprof+0x124/0x400 [ 13.109723] ? kmem_cache_double_free+0x1e6/0x490 [ 13.109754] kmem_cache_double_free+0x1e6/0x490 [ 13.109777] ? __pfx_kmem_cache_double_free+0x10/0x10 [ 13.109799] ? finish_task_switch.isra.0+0x153/0x700 [ 13.109823] ? __switch_to+0x5d9/0xf60 [ 13.109892] ? __pfx_read_tsc+0x10/0x10 [ 13.109915] ? ktime_get_ts64+0x86/0x230 [ 13.109941] kunit_try_run_case+0x1a6/0x480 [ 13.109965] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.109985] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 13.110035] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.110059] ? __kthread_parkme+0x82/0x160 [ 13.110131] ? preempt_count_sub+0x50/0x80 [ 13.110170] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.110192] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.110218] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.110243] kthread+0x324/0x6e0 [ 13.110264] ? trace_preempt_on+0x20/0xc0 [ 13.110287] ? __pfx_kthread+0x10/0x10 [ 13.110310] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.110333] ? calculate_sigpending+0x7b/0xa0 [ 13.110354] ? __pfx_kthread+0x10/0x10 [ 13.110376] ret_from_fork+0x41/0x80 [ 13.110394] ? __pfx_kthread+0x10/0x10 [ 13.110415] ret_from_fork_asm+0x1a/0x30 [ 13.110462] </TASK> [ 13.110474] [ 13.121068] Allocated by task 217: [ 13.121357] kasan_save_stack+0x45/0x70 [ 13.121622] kasan_save_track+0x18/0x40 [ 13.121844] kasan_save_alloc_info+0x3b/0x50 [ 13.122049] __kasan_slab_alloc+0x91/0xa0 [ 13.122331] kmem_cache_alloc_noprof+0x124/0x400 [ 13.122693] kmem_cache_double_free+0x150/0x490 [ 13.122951] kunit_try_run_case+0x1a6/0x480 [ 13.123358] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.123649] kthread+0x324/0x6e0 [ 13.123854] ret_from_fork+0x41/0x80 [ 13.124179] ret_from_fork_asm+0x1a/0x30 [ 13.124445] [ 13.124574] Freed by task 217: [ 13.124738] kasan_save_stack+0x45/0x70 [ 13.124954] kasan_save_track+0x18/0x40 [ 13.125157] kasan_save_free_info+0x3f/0x60 [ 13.125379] __kasan_slab_free+0x56/0x70 [ 13.125578] kmem_cache_free+0x24b/0x420 [ 13.125992] kmem_cache_double_free+0x16b/0x490 [ 13.126281] kunit_try_run_case+0x1a6/0x480 [ 13.126521] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.126752] kthread+0x324/0x6e0 [ 13.126890] ret_from_fork+0x41/0x80 [ 13.127322] ret_from_fork_asm+0x1a/0x30 [ 13.127536] [ 13.127637] The buggy address belongs to the object at ffff888102ae5000 [ 13.127637] which belongs to the cache test_cache of size 200 [ 13.128263] The buggy address is located 0 bytes inside of [ 13.128263] 200-byte region [ffff888102ae5000, ffff888102ae50c8) [ 13.129064] [ 13.129143] The buggy address belongs to the physical page: [ 13.129312] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102ae5 [ 13.129548] flags: 0x200000000000000(node=0|zone=2) [ 13.129714] page_type: f5(slab) [ 13.130016] raw: 0200000000000000 ffff8881011e9b40 dead000000000122 0000000000000000 [ 13.130492] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 13.131360] page dumped because: kasan: bad access detected [ 13.131758] [ 13.131868] Memory state around the buggy address: [ 13.132194] ffff888102ae4f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.132764] ffff888102ae4f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.133243] >ffff888102ae5000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 13.133454] ^ [ 13.133604] ffff888102ae5080: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc [ 13.133983] ffff888102ae5100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.134414] ==================================================================