Date
June 25, 2025, 8:08 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 27.538025] ================================================================== [ 27.538102] BUG: KASAN: double-free in kmem_cache_double_free+0x190/0x3c8 [ 27.538178] Free of addr fff00000c790b000 by task kunit_try_catch/221 [ 27.538221] [ 27.538264] CPU: 0 UID: 0 PID: 221 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc3-next-20250625 #1 PREEMPT [ 27.538352] Tainted: [B]=BAD_PAGE, [N]=TEST [ 27.538379] Hardware name: linux,dummy-virt (DT) [ 27.538424] Call trace: [ 27.538449] show_stack+0x20/0x38 (C) [ 27.538503] dump_stack_lvl+0x8c/0xd0 [ 27.538554] print_report+0x118/0x608 [ 27.538601] kasan_report_invalid_free+0xc0/0xe8 [ 27.538694] check_slab_allocation+0xd4/0x108 [ 27.538747] __kasan_slab_pre_free+0x2c/0x48 [ 27.538794] kmem_cache_free+0xf0/0x468 [ 27.538843] kmem_cache_double_free+0x190/0x3c8 [ 27.538889] kunit_try_run_case+0x170/0x3f0 [ 27.538940] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 27.538993] kthread+0x328/0x630 [ 27.539045] ret_from_fork+0x10/0x20 [ 27.539094] [ 27.539113] Allocated by task 221: [ 27.539154] kasan_save_stack+0x3c/0x68 [ 27.539195] kasan_save_track+0x20/0x40 [ 27.539233] kasan_save_alloc_info+0x40/0x58 [ 27.539284] __kasan_slab_alloc+0xa8/0xb0 [ 27.539338] kmem_cache_alloc_noprof+0x10c/0x398 [ 27.539378] kmem_cache_double_free+0x12c/0x3c8 [ 27.540338] kunit_try_run_case+0x170/0x3f0 [ 27.540383] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 27.541274] kthread+0x328/0x630 [ 27.541336] ret_from_fork+0x10/0x20 [ 27.541420] [ 27.541469] Freed by task 221: [ 27.541576] kasan_save_stack+0x3c/0x68 [ 27.541662] kasan_save_track+0x20/0x40 [ 27.542064] kasan_save_free_info+0x4c/0x78 [ 27.542134] __kasan_slab_free+0x6c/0x98 [ 27.542227] kmem_cache_free+0x260/0x468 [ 27.542264] kmem_cache_double_free+0x140/0x3c8 [ 27.542334] kunit_try_run_case+0x170/0x3f0 [ 27.542418] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 27.542500] kthread+0x328/0x630 [ 27.542802] ret_from_fork+0x10/0x20 [ 27.542851] [ 27.542872] The buggy address belongs to the object at fff00000c790b000 [ 27.542872] which belongs to the cache test_cache of size 200 [ 27.543309] The buggy address is located 0 bytes inside of [ 27.543309] 200-byte region [fff00000c790b000, fff00000c790b0c8) [ 27.543438] [ 27.543514] The buggy address belongs to the physical page: [ 27.543581] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10790b [ 27.543689] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 27.544075] page_type: f5(slab) [ 27.544135] raw: 0bfffe0000000000 fff00000c1b99dc0 dead000000000122 0000000000000000 [ 27.544186] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 27.544227] page dumped because: kasan: bad access detected [ 27.544259] [ 27.544277] Memory state around the buggy address: [ 27.544312] fff00000c790af00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.544670] fff00000c790af80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.544769] >fff00000c790b000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 27.544850] ^ [ 27.544878] fff00000c790b080: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc [ 27.545125] fff00000c790b100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 27.545274] ==================================================================
[ 22.553402] ================================================================== [ 22.553835] BUG: KASAN: double-free in kmem_cache_double_free+0x1e5/0x480 [ 22.554319] Free of addr ffff888103ac0000 by task kunit_try_catch/238 [ 22.554570] [ 22.554679] CPU: 1 UID: 0 PID: 238 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc3-next-20250625 #1 PREEMPT(voluntary) [ 22.554803] Tainted: [B]=BAD_PAGE, [N]=TEST [ 22.554815] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 22.554887] Call Trace: [ 22.554900] <TASK> [ 22.554956] dump_stack_lvl+0x73/0xb0 [ 22.554987] print_report+0xd1/0x650 [ 22.555024] ? __virt_addr_valid+0x1db/0x2d0 [ 22.555049] ? kasan_complete_mode_report_info+0x64/0x200 [ 22.555073] ? kmem_cache_double_free+0x1e5/0x480 [ 22.555096] kasan_report_invalid_free+0x10a/0x130 [ 22.555117] ? kmem_cache_double_free+0x1e5/0x480 [ 22.555141] ? kmem_cache_double_free+0x1e5/0x480 [ 22.555164] check_slab_allocation+0x101/0x130 [ 22.555183] __kasan_slab_pre_free+0x28/0x40 [ 22.555218] kmem_cache_free+0xed/0x420 [ 22.555237] ? kmem_cache_alloc_noprof+0x123/0x3f0 [ 22.555260] ? kmem_cache_double_free+0x1e5/0x480 [ 22.555284] kmem_cache_double_free+0x1e5/0x480 [ 22.555306] ? __pfx_kmem_cache_double_free+0x10/0x10 [ 22.555327] ? finish_task_switch.isra.0+0x153/0x700 [ 22.555348] ? __switch_to+0x47/0xf50 [ 22.555376] ? __pfx_read_tsc+0x10/0x10 [ 22.555397] ? ktime_get_ts64+0x86/0x230 [ 22.555421] kunit_try_run_case+0x1a5/0x480 [ 22.555447] ? __pfx_kunit_try_run_case+0x10/0x10 [ 22.555468] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 22.555489] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 22.555512] ? __kthread_parkme+0x82/0x180 [ 22.555532] ? preempt_count_sub+0x50/0x80 [ 22.555552] ? __pfx_kunit_try_run_case+0x10/0x10 [ 22.555575] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 22.555597] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 22.555618] kthread+0x337/0x6f0 [ 22.555637] ? trace_preempt_on+0x20/0xc0 [ 22.555660] ? __pfx_kthread+0x10/0x10 [ 22.555680] ? _raw_spin_unlock_irq+0x47/0x80 [ 22.555701] ? calculate_sigpending+0x7b/0xa0 [ 22.555724] ? __pfx_kthread+0x10/0x10 [ 22.555744] ret_from_fork+0x116/0x1d0 [ 22.555761] ? __pfx_kthread+0x10/0x10 [ 22.555779] ret_from_fork_asm+0x1a/0x30 [ 22.555808] </TASK> [ 22.555818] [ 22.564753] Allocated by task 238: [ 22.565184] kasan_save_stack+0x45/0x70 [ 22.565325] kasan_save_track+0x18/0x40 [ 22.565451] kasan_save_alloc_info+0x3b/0x50 [ 22.565635] __kasan_slab_alloc+0x91/0xa0 [ 22.565826] kmem_cache_alloc_noprof+0x123/0x3f0 [ 22.566056] kmem_cache_double_free+0x14f/0x480 [ 22.566507] kunit_try_run_case+0x1a5/0x480 [ 22.566722] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 22.566964] kthread+0x337/0x6f0 [ 22.567078] ret_from_fork+0x116/0x1d0 [ 22.567426] ret_from_fork_asm+0x1a/0x30 [ 22.567712] [ 22.567874] Freed by task 238: [ 22.568050] kasan_save_stack+0x45/0x70 [ 22.568283] kasan_save_track+0x18/0x40 [ 22.568412] kasan_save_free_info+0x3f/0x60 [ 22.568589] __kasan_slab_free+0x56/0x70 [ 22.568902] kmem_cache_free+0x249/0x420 [ 22.569228] kmem_cache_double_free+0x16a/0x480 [ 22.569482] kunit_try_run_case+0x1a5/0x480 [ 22.569623] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 22.569829] kthread+0x337/0x6f0 [ 22.569999] ret_from_fork+0x116/0x1d0 [ 22.570442] ret_from_fork_asm+0x1a/0x30 [ 22.570742] [ 22.570839] The buggy address belongs to the object at ffff888103ac0000 [ 22.570839] which belongs to the cache test_cache of size 200 [ 22.571610] The buggy address is located 0 bytes inside of [ 22.571610] 200-byte region [ffff888103ac0000, ffff888103ac00c8) [ 22.572179] [ 22.572324] The buggy address belongs to the physical page: [ 22.572615] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103ac0 [ 22.572905] flags: 0x200000000000000(node=0|zone=2) [ 22.573168] page_type: f5(slab) [ 22.573450] raw: 0200000000000000 ffff888103ae5000 dead000000000122 0000000000000000 [ 22.573751] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 22.574069] page dumped because: kasan: bad access detected [ 22.574413] [ 22.574487] Memory state around the buggy address: [ 22.574700] ffff888103abff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.574988] ffff888103abff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.575279] >ffff888103ac0000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 22.575714] ^ [ 22.575869] ffff888103ac0080: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc [ 22.576367] ffff888103ac0100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.577190] ==================================================================