Date
May 29, 2025, 7:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 22.817620] ================================================================== [ 22.818482] BUG: KASAN: double-free in kmem_cache_double_free+0x190/0x3c8 [ 22.818923] Free of addr fff00000c725b000 by task kunit_try_catch/209 [ 22.819259] [ 22.819366] CPU: 1 UID: 0 PID: 209 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250529 #1 PREEMPT [ 22.819760] Tainted: [B]=BAD_PAGE, [N]=TEST [ 22.819842] Hardware name: linux,dummy-virt (DT) [ 22.819946] Call trace: [ 22.820101] show_stack+0x20/0x38 (C) [ 22.820258] dump_stack_lvl+0x8c/0xd0 [ 22.820392] print_report+0x118/0x608 [ 22.820970] kasan_report_invalid_free+0xc0/0xe8 [ 22.821272] check_slab_allocation+0xd4/0x108 [ 22.821578] __kasan_slab_pre_free+0x2c/0x48 [ 22.821872] kmem_cache_free+0xf0/0x470 [ 22.822661] kmem_cache_double_free+0x190/0x3c8 [ 22.822958] kunit_try_run_case+0x170/0x3f0 [ 22.823451] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.823611] kthread+0x328/0x630 [ 22.823721] ret_from_fork+0x10/0x20 [ 22.823901] [ 22.823950] Allocated by task 209: [ 22.824037] kasan_save_stack+0x3c/0x68 [ 22.824148] kasan_save_track+0x20/0x40 [ 22.824238] kasan_save_alloc_info+0x40/0x58 [ 22.824332] __kasan_slab_alloc+0xa8/0xb0 [ 22.824432] kmem_cache_alloc_noprof+0x10c/0x3a0 [ 22.824534] kmem_cache_double_free+0x12c/0x3c8 [ 22.824634] kunit_try_run_case+0x170/0x3f0 [ 22.824725] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.824832] kthread+0x328/0x630 [ 22.824911] ret_from_fork+0x10/0x20 [ 22.824996] [ 22.825040] Freed by task 209: [ 22.825107] kasan_save_stack+0x3c/0x68 [ 22.825201] kasan_save_track+0x20/0x40 [ 22.825288] kasan_save_free_info+0x4c/0x78 [ 22.825382] __kasan_slab_free+0x6c/0x98 [ 22.826245] kmem_cache_free+0x260/0x470 [ 22.826800] kmem_cache_double_free+0x140/0x3c8 [ 22.827059] kunit_try_run_case+0x170/0x3f0 [ 22.827322] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.827614] kthread+0x328/0x630 [ 22.827847] ret_from_fork+0x10/0x20 [ 22.828237] [ 22.828294] The buggy address belongs to the object at fff00000c725b000 [ 22.828294] which belongs to the cache test_cache of size 200 [ 22.829159] The buggy address is located 0 bytes inside of [ 22.829159] 200-byte region [fff00000c725b000, fff00000c725b0c8) [ 22.829437] [ 22.829913] The buggy address belongs to the physical page: [ 22.830005] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10725b [ 22.830157] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 22.830438] page_type: f5(slab) [ 22.830606] raw: 0bfffe0000000000 fff00000c787b000 dead000000000122 0000000000000000 [ 22.830878] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 22.831088] page dumped because: kasan: bad access detected [ 22.831159] [ 22.831207] Memory state around the buggy address: [ 22.831275] fff00000c725af00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 22.831394] fff00000c725af80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 22.831515] >fff00000c725b000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 22.831650] ^ [ 22.831726] fff00000c725b080: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc [ 22.831831] fff00000c725b100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.831922] ==================================================================
[ 11.543588] ================================================================== [ 11.544570] BUG: KASAN: double-free in kmem_cache_double_free+0x1e5/0x480 [ 11.544827] Free of addr ffff8881028ab000 by task kunit_try_catch/226 [ 11.545035] [ 11.545135] CPU: 1 UID: 0 PID: 226 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250529 #1 PREEMPT(voluntary) [ 11.545185] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.545199] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.545220] Call Trace: [ 11.545234] <TASK> [ 11.545252] dump_stack_lvl+0x73/0xb0 [ 11.545281] print_report+0xd1/0x650 [ 11.545305] ? __virt_addr_valid+0x1db/0x2d0 [ 11.545330] ? kasan_complete_mode_report_info+0x64/0x200 [ 11.545351] ? kmem_cache_double_free+0x1e5/0x480 [ 11.545373] kasan_report_invalid_free+0x10a/0x130 [ 11.545398] ? kmem_cache_double_free+0x1e5/0x480 [ 11.545421] ? kmem_cache_double_free+0x1e5/0x480 [ 11.545442] check_slab_allocation+0x101/0x130 [ 11.545464] __kasan_slab_pre_free+0x28/0x40 [ 11.545485] kmem_cache_free+0xed/0x420 [ 11.545506] ? kmem_cache_alloc_noprof+0x123/0x3f0 [ 11.545526] ? kmem_cache_double_free+0x1e5/0x480 [ 11.545550] kmem_cache_double_free+0x1e5/0x480 [ 11.545570] ? __pfx_kmem_cache_double_free+0x10/0x10 [ 11.545590] ? finish_task_switch.isra.0+0x153/0x700 [ 11.545625] ? __switch_to+0x47/0xf50 [ 11.545653] ? __pfx_read_tsc+0x10/0x10 [ 11.545674] ? ktime_get_ts64+0x86/0x230 [ 11.545700] kunit_try_run_case+0x1a5/0x480 [ 11.545722] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.545741] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.545767] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.545791] ? __kthread_parkme+0x82/0x180 [ 11.545811] ? preempt_count_sub+0x50/0x80 [ 11.545833] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.545854] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.545877] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.545901] kthread+0x337/0x6f0 [ 11.545920] ? trace_preempt_on+0x20/0xc0 [ 11.545943] ? __pfx_kthread+0x10/0x10 [ 11.545963] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.545985] ? calculate_sigpending+0x7b/0xa0 [ 11.546009] ? __pfx_kthread+0x10/0x10 [ 11.546030] ret_from_fork+0x116/0x1d0 [ 11.546047] ? __pfx_kthread+0x10/0x10 [ 11.546068] ret_from_fork_asm+0x1a/0x30 [ 11.546098] </TASK> [ 11.546109] [ 11.558691] Allocated by task 226: [ 11.558857] kasan_save_stack+0x45/0x70 [ 11.559038] kasan_save_track+0x18/0x40 [ 11.559270] kasan_save_alloc_info+0x3b/0x50 [ 11.559511] __kasan_slab_alloc+0x91/0xa0 [ 11.559727] kmem_cache_alloc_noprof+0x123/0x3f0 [ 11.559972] kmem_cache_double_free+0x14f/0x480 [ 11.560215] kunit_try_run_case+0x1a5/0x480 [ 11.560429] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.560707] kthread+0x337/0x6f0 [ 11.560926] ret_from_fork+0x116/0x1d0 [ 11.561138] ret_from_fork_asm+0x1a/0x30 [ 11.561368] [ 11.561459] Freed by task 226: [ 11.561652] kasan_save_stack+0x45/0x70 [ 11.561914] kasan_save_track+0x18/0x40 [ 11.562121] kasan_save_free_info+0x3f/0x60 [ 11.562350] __kasan_slab_free+0x56/0x70 [ 11.562541] kmem_cache_free+0x249/0x420 [ 11.562811] kmem_cache_double_free+0x16a/0x480 [ 11.563031] kunit_try_run_case+0x1a5/0x480 [ 11.563258] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.563558] kthread+0x337/0x6f0 [ 11.563719] ret_from_fork+0x116/0x1d0 [ 11.563960] ret_from_fork_asm+0x1a/0x30 [ 11.564182] [ 11.564271] The buggy address belongs to the object at ffff8881028ab000 [ 11.564271] which belongs to the cache test_cache of size 200 [ 11.564839] The buggy address is located 0 bytes inside of [ 11.564839] 200-byte region [ffff8881028ab000, ffff8881028ab0c8) [ 11.565344] [ 11.565434] The buggy address belongs to the physical page: [ 11.565712] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1028ab [ 11.566041] flags: 0x200000000000000(node=0|zone=2) [ 11.566210] page_type: f5(slab) [ 11.566368] raw: 0200000000000000 ffff8881028a7140 dead000000000122 0000000000000000 [ 11.566792] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 11.567130] page dumped because: kasan: bad access detected [ 11.567309] [ 11.567379] Memory state around the buggy address: [ 11.567558] ffff8881028aaf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.568005] ffff8881028aaf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.568379] >ffff8881028ab000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 11.568686] ^ [ 11.568832] ffff8881028ab080: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc [ 11.569193] ffff8881028ab100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.569545] ==================================================================