Date
May 15, 2025, 10:38 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.764423] ================================================================== [ 18.765234] BUG: KASAN: double-free in kmem_cache_double_free+0x190/0x3c8 [ 18.765878] Free of addr fff00000c1732000 by task kunit_try_catch/209 [ 18.765989] [ 18.766214] CPU: 0 UID: 0 PID: 209 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250515 #1 PREEMPT [ 18.766745] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.767027] Hardware name: linux,dummy-virt (DT) [ 18.767463] Call trace: [ 18.767493] show_stack+0x20/0x38 (C) [ 18.768106] dump_stack_lvl+0x8c/0xd0 [ 18.768290] print_report+0x118/0x608 [ 18.768338] kasan_report_invalid_free+0xc0/0xe8 [ 18.768396] check_slab_allocation+0xd4/0x108 [ 18.768445] __kasan_slab_pre_free+0x2c/0x48 [ 18.768963] kmem_cache_free+0xf0/0x470 [ 18.769192] kmem_cache_double_free+0x190/0x3c8 [ 18.769254] kunit_try_run_case+0x170/0x3f0 [ 18.769316] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.769366] kthread+0x328/0x630 [ 18.769414] ret_from_fork+0x10/0x20 [ 18.769465] [ 18.769484] Allocated by task 209: [ 18.769774] kasan_save_stack+0x3c/0x68 [ 18.769831] kasan_save_track+0x20/0x40 [ 18.769868] kasan_save_alloc_info+0x40/0x58 [ 18.770204] __kasan_slab_alloc+0xa8/0xb0 [ 18.770429] kmem_cache_alloc_noprof+0x10c/0x3a0 [ 18.770469] kmem_cache_double_free+0x12c/0x3c8 [ 18.770507] kunit_try_run_case+0x170/0x3f0 [ 18.770665] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.770714] kthread+0x328/0x630 [ 18.770754] ret_from_fork+0x10/0x20 [ 18.771143] [ 18.771176] Freed by task 209: [ 18.771203] kasan_save_stack+0x3c/0x68 [ 18.771244] kasan_save_track+0x20/0x40 [ 18.771279] kasan_save_free_info+0x4c/0x78 [ 18.771694] __kasan_slab_free+0x6c/0x98 [ 18.771740] kmem_cache_free+0x260/0x470 [ 18.771777] kmem_cache_double_free+0x140/0x3c8 [ 18.772453] kunit_try_run_case+0x170/0x3f0 [ 18.772505] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.772573] kthread+0x328/0x630 [ 18.772776] ret_from_fork+0x10/0x20 [ 18.772850] [ 18.772870] The buggy address belongs to the object at fff00000c1732000 [ 18.772870] which belongs to the cache test_cache of size 200 [ 18.773397] The buggy address is located 0 bytes inside of [ 18.773397] 200-byte region [fff00000c1732000, fff00000c17320c8) [ 18.773462] [ 18.773484] The buggy address belongs to the physical page: [ 18.773815] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101732 [ 18.774117] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.774204] page_type: f5(slab) [ 18.774435] raw: 0bfffe0000000000 fff00000c1736140 dead000000000122 0000000000000000 [ 18.774491] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 18.774532] page dumped because: kasan: bad access detected [ 18.774571] [ 18.774591] Memory state around the buggy address: [ 18.774678] fff00000c1731f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 18.774922] fff00000c1731f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 18.774968] >fff00000c1732000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 18.775005] ^ [ 18.775238] fff00000c1732080: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc [ 18.775588] fff00000c1732100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.775631] ==================================================================
[ 14.844989] ================================================================== [ 14.845972] BUG: KASAN: double-free in kmem_cache_double_free+0x1e5/0x480 [ 14.846405] Free of addr ffff888102314000 by task kunit_try_catch/227 [ 14.846840] [ 14.846995] CPU: 1 UID: 0 PID: 227 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250515 #1 PREEMPT(voluntary) [ 14.847091] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.847114] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.847153] Call Trace: [ 14.847177] <TASK> [ 14.847210] dump_stack_lvl+0x73/0xb0 [ 14.847285] print_report+0xd1/0x650 [ 14.847333] ? __virt_addr_valid+0x1db/0x2d0 [ 14.847387] ? kasan_complete_mode_report_info+0x64/0x200 [ 14.847430] ? kmem_cache_double_free+0x1e5/0x480 [ 14.847886] kasan_report_invalid_free+0x10a/0x130 [ 14.847959] ? kmem_cache_double_free+0x1e5/0x480 [ 14.848007] ? kmem_cache_double_free+0x1e5/0x480 [ 14.848045] check_slab_allocation+0x101/0x130 [ 14.848082] __kasan_slab_pre_free+0x28/0x40 [ 14.848115] kmem_cache_free+0xed/0x420 [ 14.848153] ? kmem_cache_alloc_noprof+0x123/0x3f0 [ 14.848191] ? kmem_cache_double_free+0x1e5/0x480 [ 14.848249] kmem_cache_double_free+0x1e5/0x480 [ 14.848295] ? __pfx_kmem_cache_double_free+0x10/0x10 [ 14.848335] ? finish_task_switch.isra.0+0x153/0x700 [ 14.848386] ? __switch_to+0x47/0xf50 [ 14.848448] ? __pfx_read_tsc+0x10/0x10 [ 14.848526] ? ktime_get_ts64+0x86/0x230 [ 14.848571] kunit_try_run_case+0x1a5/0x480 [ 14.848618] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.848651] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 14.848685] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 14.848708] ? __kthread_parkme+0x82/0x180 [ 14.848730] ? preempt_count_sub+0x50/0x80 [ 14.848754] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.848777] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.848799] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.848821] kthread+0x337/0x6f0 [ 14.848840] ? trace_preempt_on+0x20/0xc0 [ 14.848864] ? __pfx_kthread+0x10/0x10 [ 14.848884] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.848904] ? calculate_sigpending+0x7b/0xa0 [ 14.848928] ? __pfx_kthread+0x10/0x10 [ 14.848948] ret_from_fork+0x116/0x1d0 [ 14.848966] ? __pfx_kthread+0x10/0x10 [ 14.848986] ret_from_fork_asm+0x1a/0x30 [ 14.849019] </TASK> [ 14.849032] [ 14.861870] Allocated by task 227: [ 14.862188] kasan_save_stack+0x45/0x70 [ 14.863109] kasan_save_track+0x18/0x40 [ 14.863403] kasan_save_alloc_info+0x3b/0x50 [ 14.863890] __kasan_slab_alloc+0x91/0xa0 [ 14.864077] kmem_cache_alloc_noprof+0x123/0x3f0 [ 14.864431] kmem_cache_double_free+0x14f/0x480 [ 14.864686] kunit_try_run_case+0x1a5/0x480 [ 14.864885] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.865093] kthread+0x337/0x6f0 [ 14.865365] ret_from_fork+0x116/0x1d0 [ 14.865622] ret_from_fork_asm+0x1a/0x30 [ 14.865833] [ 14.865992] Freed by task 227: [ 14.866159] kasan_save_stack+0x45/0x70 [ 14.866957] kasan_save_track+0x18/0x40 [ 14.867165] kasan_save_free_info+0x3f/0x60 [ 14.867663] __kasan_slab_free+0x56/0x70 [ 14.867993] kmem_cache_free+0x249/0x420 [ 14.868304] kmem_cache_double_free+0x16a/0x480 [ 14.868624] kunit_try_run_case+0x1a5/0x480 [ 14.868959] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.869378] kthread+0x337/0x6f0 [ 14.869717] ret_from_fork+0x116/0x1d0 [ 14.870083] ret_from_fork_asm+0x1a/0x30 [ 14.870400] [ 14.870592] The buggy address belongs to the object at ffff888102314000 [ 14.870592] which belongs to the cache test_cache of size 200 [ 14.871417] The buggy address is located 0 bytes inside of [ 14.871417] 200-byte region [ffff888102314000, ffff8881023140c8) [ 14.871933] [ 14.872091] The buggy address belongs to the physical page: [ 14.872906] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102314 [ 14.873585] flags: 0x200000000000000(node=0|zone=2) [ 14.873799] page_type: f5(slab) [ 14.874239] raw: 0200000000000000 ffff888102312000 dead000000000122 0000000000000000 [ 14.874668] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 14.875167] page dumped because: kasan: bad access detected [ 14.875965] [ 14.876094] Memory state around the buggy address: [ 14.876291] ffff888102313f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.876760] ffff888102313f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.877078] >ffff888102314000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 14.878008] ^ [ 14.878320] ffff888102314080: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc [ 14.879015] ffff888102314100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.879517] ==================================================================