Date
Dec. 4, 2024, 3:07 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 33.323510] ================================================================== [ 33.325150] BUG: KASAN: double-free in kmem_cache_double_free+0x190/0x3c8 [ 33.326037] Free of addr fff00000c66ed000 by task kunit_try_catch/197 [ 33.326738] [ 33.327173] CPU: 1 UID: 0 PID: 197 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc1-next-20241204 #1 [ 33.328457] Tainted: [B]=BAD_PAGE, [N]=TEST [ 33.328989] Hardware name: linux,dummy-virt (DT) [ 33.329683] Call trace: [ 33.330041] show_stack+0x20/0x38 (C) [ 33.330753] dump_stack_lvl+0x8c/0xd0 [ 33.331360] print_report+0x118/0x5e0 [ 33.331920] kasan_report_invalid_free+0xb0/0xd8 [ 33.332673] check_slab_allocation+0xd4/0x108 [ 33.333260] __kasan_slab_pre_free+0x2c/0x48 [ 33.333828] kmem_cache_free+0xf0/0x470 [ 33.334489] kmem_cache_double_free+0x190/0x3c8 [ 33.335135] kunit_try_run_case+0x14c/0x3d0 [ 33.335890] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 33.336644] kthread+0x24c/0x2d0 [ 33.337243] ret_from_fork+0x10/0x20 [ 33.337838] [ 33.338142] Allocated by task 197: [ 33.338577] kasan_save_stack+0x3c/0x68 [ 33.339291] kasan_save_track+0x20/0x40 [ 33.339826] kasan_save_alloc_info+0x40/0x58 [ 33.340472] __kasan_slab_alloc+0xa8/0xb0 [ 33.341088] kmem_cache_alloc_noprof+0x108/0x398 [ 33.341755] kmem_cache_double_free+0x12c/0x3c8 [ 33.342264] kunit_try_run_case+0x14c/0x3d0 [ 33.343028] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 33.343700] kthread+0x24c/0x2d0 [ 33.344184] ret_from_fork+0x10/0x20 [ 33.344676] [ 33.345061] Freed by task 197: [ 33.345537] kasan_save_stack+0x3c/0x68 [ 33.346063] kasan_save_track+0x20/0x40 [ 33.346766] kasan_save_free_info+0x4c/0x78 [ 33.347431] __kasan_slab_free+0x6c/0x98 [ 33.348110] kmem_cache_free+0x118/0x470 [ 33.348709] kmem_cache_double_free+0x140/0x3c8 [ 33.349438] kunit_try_run_case+0x14c/0x3d0 [ 33.349982] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 33.350851] kthread+0x24c/0x2d0 [ 33.351339] ret_from_fork+0x10/0x20 [ 33.352009] [ 33.352338] The buggy address belongs to the object at fff00000c66ed000 [ 33.352338] which belongs to the cache test_cache of size 200 [ 33.353856] The buggy address is located 0 bytes inside of [ 33.353856] 200-byte region [fff00000c66ed000, fff00000c66ed0c8) [ 33.355208] [ 33.355542] The buggy address belongs to the physical page: [ 33.356445] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1066ed [ 33.357381] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 33.358209] page_type: f5(slab) [ 33.358681] raw: 0bfffe0000000000 fff00000c5699b40 dead000000000122 0000000000000000 [ 33.359777] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 33.360828] page dumped because: kasan: bad access detected [ 33.361727] [ 33.362055] Memory state around the buggy address: [ 33.362706] fff00000c66ecf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 33.363508] fff00000c66ecf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 33.364675] >fff00000c66ed000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 33.365442] ^ [ 33.365881] fff00000c66ed080: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc [ 33.366925] fff00000c66ed100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 33.367971] ==================================================================
[ 24.102723] ================================================================== [ 24.103819] BUG: KASAN: double-free in kmem_cache_double_free+0x1e6/0x490 [ 24.104884] Free of addr ffff888102996000 by task kunit_try_catch/217 [ 24.106017] [ 24.106564] CPU: 1 UID: 0 PID: 217 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc1-next-20241204 #1 [ 24.108145] Tainted: [B]=BAD_PAGE, [N]=TEST [ 24.108672] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 24.109082] Call Trace: [ 24.110081] <TASK> [ 24.111013] dump_stack_lvl+0x73/0xb0 [ 24.112057] print_report+0xd1/0x640 [ 24.112908] ? __virt_addr_valid+0x1db/0x2d0 [ 24.113549] ? kmem_cache_double_free+0x1e6/0x490 [ 24.113971] ? kasan_complete_mode_report_info+0x64/0x200 [ 24.114488] ? kmem_cache_double_free+0x1e6/0x490 [ 24.115685] kasan_report_invalid_free+0xc0/0xf0 [ 24.116703] ? kmem_cache_double_free+0x1e6/0x490 [ 24.117330] ? kmem_cache_double_free+0x1e6/0x490 [ 24.117966] check_slab_allocation+0x101/0x130 [ 24.118741] __kasan_slab_pre_free+0x28/0x40 [ 24.120052] kmem_cache_free+0xee/0x420 [ 24.120688] ? kmem_cache_alloc_noprof+0x11e/0x3e0 [ 24.121245] ? kmem_cache_double_free+0x1e6/0x490 [ 24.122070] kmem_cache_double_free+0x1e6/0x490 [ 24.122548] ? __pfx_kmem_cache_double_free+0x10/0x10 [ 24.123216] ? finish_task_switch.isra.0+0x153/0x700 [ 24.124395] ? __switch_to+0x5d9/0xf60 [ 24.124847] ? __pfx_read_tsc+0x10/0x10 [ 24.125264] ? ktime_get_ts64+0x86/0x230 [ 24.126205] kunit_try_run_case+0x1b3/0x490 [ 24.126970] ? __pfx_kunit_try_run_case+0x10/0x10 [ 24.127437] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 24.127837] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 24.128298] ? __kthread_parkme+0x82/0x160 [ 24.128665] ? preempt_count_sub+0x50/0x80 [ 24.129901] ? __pfx_kunit_try_run_case+0x10/0x10 [ 24.130377] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 24.131113] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.131983] kthread+0x257/0x310 [ 24.132686] ? __pfx_kthread+0x10/0x10 [ 24.133261] ret_from_fork+0x41/0x80 [ 24.134251] ? __pfx_kthread+0x10/0x10 [ 24.135070] ret_from_fork_asm+0x1a/0x30 [ 24.135479] </TASK> [ 24.136255] [ 24.136502] Allocated by task 217: [ 24.137237] kasan_save_stack+0x3d/0x60 [ 24.138160] kasan_save_track+0x18/0x40 [ 24.138854] kasan_save_alloc_info+0x3b/0x50 [ 24.139900] __kasan_slab_alloc+0x91/0xa0 [ 24.140318] kmem_cache_alloc_noprof+0x11e/0x3e0 [ 24.141926] kmem_cache_double_free+0x150/0x490 [ 24.142377] kunit_try_run_case+0x1b3/0x490 [ 24.143406] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.143876] kthread+0x257/0x310 [ 24.144404] ret_from_fork+0x41/0x80 [ 24.144874] ret_from_fork_asm+0x1a/0x30 [ 24.145360] [ 24.146077] Freed by task 217: [ 24.146345] kasan_save_stack+0x3d/0x60 [ 24.146871] kasan_save_track+0x18/0x40 [ 24.147366] kasan_save_free_info+0x3f/0x60 [ 24.148059] __kasan_slab_free+0x56/0x70 [ 24.148423] kmem_cache_free+0x120/0x420 [ 24.148703] kmem_cache_double_free+0x16b/0x490 [ 24.149445] kunit_try_run_case+0x1b3/0x490 [ 24.150452] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.150896] kthread+0x257/0x310 [ 24.151352] ret_from_fork+0x41/0x80 [ 24.152216] ret_from_fork_asm+0x1a/0x30 [ 24.152695] [ 24.152894] The buggy address belongs to the object at ffff888102996000 [ 24.152894] which belongs to the cache test_cache of size 200 [ 24.154551] The buggy address is located 0 bytes inside of [ 24.154551] 200-byte region [ffff888102996000, ffff8881029960c8) [ 24.156337] [ 24.157313] The buggy address belongs to the physical page: [ 24.157729] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102996 [ 24.158933] flags: 0x200000000000000(node=0|zone=2) [ 24.159951] page_type: f5(slab) [ 24.161119] raw: 0200000000000000 ffff8881010c4c80 dead000000000122 0000000000000000 [ 24.161972] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 24.163102] page dumped because: kasan: bad access detected [ 24.163639] [ 24.163924] Memory state around the buggy address: [ 24.165017] ffff888102995f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.165591] ffff888102995f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.166885] >ffff888102996000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 24.168018] ^ [ 24.168244] ffff888102996080: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc [ 24.169275] ffff888102996100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.170379] ==================================================================