Date
May 23, 2025, 11:07 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 28.707003] ================================================================== [ 28.707426] BUG: KASAN: double-free in kmem_cache_double_free+0x190/0x3c8 [ 28.708014] Free of addr fff00000c7779000 by task kunit_try_catch/211 [ 28.708247] [ 28.708377] CPU: 0 UID: 0 PID: 211 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc7 #1 PREEMPT [ 28.708614] Tainted: [B]=BAD_PAGE, [N]=TEST [ 28.708969] Hardware name: linux,dummy-virt (DT) [ 28.709090] Call trace: [ 28.709290] show_stack+0x20/0x38 (C) [ 28.709901] dump_stack_lvl+0x8c/0xd0 [ 28.710145] print_report+0x118/0x608 [ 28.710301] kasan_report_invalid_free+0xc0/0xe8 [ 28.710486] check_slab_allocation+0xd4/0x108 [ 28.710634] __kasan_slab_pre_free+0x2c/0x48 [ 28.710831] kmem_cache_free+0xf0/0x470 [ 28.711024] kmem_cache_double_free+0x190/0x3c8 [ 28.711233] kunit_try_run_case+0x170/0x3f0 [ 28.711412] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 28.711597] kthread+0x328/0x630 [ 28.711734] ret_from_fork+0x10/0x20 [ 28.711880] [ 28.711936] Allocated by task 211: [ 28.712011] kasan_save_stack+0x3c/0x68 [ 28.712119] kasan_save_track+0x20/0x40 [ 28.712207] kasan_save_alloc_info+0x40/0x58 [ 28.712292] __kasan_slab_alloc+0xa8/0xb0 [ 28.712390] kmem_cache_alloc_noprof+0x10c/0x3a0 [ 28.712515] kmem_cache_double_free+0x12c/0x3c8 [ 28.712640] kunit_try_run_case+0x170/0x3f0 [ 28.712767] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 28.712886] kthread+0x328/0x630 [ 28.712999] ret_from_fork+0x10/0x20 [ 28.713132] [ 28.713184] Freed by task 211: [ 28.713257] kasan_save_stack+0x3c/0x68 [ 28.713373] kasan_save_track+0x20/0x40 [ 28.713509] kasan_save_free_info+0x4c/0x78 [ 28.713634] __kasan_slab_free+0x6c/0x98 [ 28.713731] kmem_cache_free+0x260/0x470 [ 28.713842] kmem_cache_double_free+0x140/0x3c8 [ 28.713958] kunit_try_run_case+0x170/0x3f0 [ 28.714070] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 28.714216] kthread+0x328/0x630 [ 28.714318] ret_from_fork+0x10/0x20 [ 28.714474] [ 28.714528] The buggy address belongs to the object at fff00000c7779000 [ 28.714528] which belongs to the cache test_cache of size 200 [ 28.714723] The buggy address is located 0 bytes inside of [ 28.714723] 200-byte region [fff00000c7779000, fff00000c77790c8) [ 28.714977] [ 28.715055] The buggy address belongs to the physical page: [ 28.715147] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107779 [ 28.715305] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 28.715488] page_type: f5(slab) [ 28.715599] raw: 0bfffe0000000000 fff00000c11fd500 dead000000000122 0000000000000000 [ 28.715740] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 28.715890] page dumped because: kasan: bad access detected [ 28.715981] [ 28.716028] Memory state around the buggy address: [ 28.716127] fff00000c7778f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 28.716341] fff00000c7778f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 28.716524] >fff00000c7779000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 28.716672] ^ [ 28.716752] fff00000c7779080: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc [ 28.716900] fff00000c7779100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 28.717018] ==================================================================
[ 13.329653] ================================================================== [ 13.330510] BUG: KASAN: double-free in kmem_cache_double_free+0x1e5/0x480 [ 13.331000] Free of addr ffff888102a44000 by task kunit_try_catch/228 [ 13.331816] [ 13.332216] CPU: 1 UID: 0 PID: 228 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc7 #1 PREEMPT(voluntary) [ 13.332393] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.332409] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.332433] Call Trace: [ 13.332446] <TASK> [ 13.332465] dump_stack_lvl+0x73/0xb0 [ 13.332499] print_report+0xd1/0x650 [ 13.332522] ? __virt_addr_valid+0x1db/0x2d0 [ 13.332547] ? kasan_complete_mode_report_info+0x64/0x200 [ 13.332570] ? kmem_cache_double_free+0x1e5/0x480 [ 13.332590] kasan_report_invalid_free+0x10a/0x130 [ 13.332614] ? kmem_cache_double_free+0x1e5/0x480 [ 13.332638] ? kmem_cache_double_free+0x1e5/0x480 [ 13.332658] check_slab_allocation+0x101/0x130 [ 13.332680] __kasan_slab_pre_free+0x28/0x40 [ 13.332700] kmem_cache_free+0xed/0x420 [ 13.332721] ? kmem_cache_alloc_noprof+0x123/0x3f0 [ 13.332742] ? kmem_cache_double_free+0x1e5/0x480 [ 13.332765] kmem_cache_double_free+0x1e5/0x480 [ 13.332788] ? __pfx_kmem_cache_double_free+0x10/0x10 [ 13.332807] ? finish_task_switch.isra.0+0x153/0x700 [ 13.332832] ? __switch_to+0x5d9/0xf60 [ 13.332853] ? dequeue_task_fair+0x166/0x4e0 [ 13.332927] ? __pfx_read_tsc+0x10/0x10 [ 13.332951] ? ktime_get_ts64+0x86/0x230 [ 13.332978] kunit_try_run_case+0x1a5/0x480 [ 13.333003] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.333024] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.333047] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.333069] ? __kthread_parkme+0x82/0x180 [ 13.333092] ? preempt_count_sub+0x50/0x80 [ 13.333116] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.333138] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.333160] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.333181] kthread+0x337/0x6f0 [ 13.333197] ? trace_preempt_on+0x20/0xc0 [ 13.333222] ? __pfx_kthread+0x10/0x10 [ 13.333240] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.333260] ? calculate_sigpending+0x7b/0xa0 [ 13.333282] ? __pfx_kthread+0x10/0x10 [ 13.333310] ret_from_fork+0x41/0x80 [ 13.333331] ? __pfx_kthread+0x10/0x10 [ 13.333348] ret_from_fork_asm+0x1a/0x30 [ 13.333379] </TASK> [ 13.333391] [ 13.351925] Allocated by task 228: [ 13.352080] kasan_save_stack+0x45/0x70 [ 13.352239] kasan_save_track+0x18/0x40 [ 13.352394] kasan_save_alloc_info+0x3b/0x50 [ 13.352596] __kasan_slab_alloc+0x91/0xa0 [ 13.352781] kmem_cache_alloc_noprof+0x123/0x3f0 [ 13.352979] kmem_cache_double_free+0x14f/0x480 [ 13.353181] kunit_try_run_case+0x1a5/0x480 [ 13.353590] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.354094] kthread+0x337/0x6f0 [ 13.354406] ret_from_fork+0x41/0x80 [ 13.354763] ret_from_fork_asm+0x1a/0x30 [ 13.355220] [ 13.355403] Freed by task 228: [ 13.355718] kasan_save_stack+0x45/0x70 [ 13.356100] kasan_save_track+0x18/0x40 [ 13.356591] kasan_save_free_info+0x3f/0x60 [ 13.357157] __kasan_slab_free+0x56/0x70 [ 13.357636] kmem_cache_free+0x249/0x420 [ 13.358101] kmem_cache_double_free+0x16a/0x480 [ 13.358687] kunit_try_run_case+0x1a5/0x480 [ 13.359105] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.359658] kthread+0x337/0x6f0 [ 13.359778] ret_from_fork+0x41/0x80 [ 13.359993] ret_from_fork_asm+0x1a/0x30 [ 13.360404] [ 13.360575] The buggy address belongs to the object at ffff888102a44000 [ 13.360575] which belongs to the cache test_cache of size 200 [ 13.361262] The buggy address is located 0 bytes inside of [ 13.361262] 200-byte region [ffff888102a44000, ffff888102a440c8) [ 13.361680] [ 13.361842] The buggy address belongs to the physical page: [ 13.362394] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102a44 [ 13.363205] flags: 0x200000000000000(node=0|zone=2) [ 13.363693] page_type: f5(slab) [ 13.364075] raw: 0200000000000000 ffff8881020d63c0 dead000000000122 0000000000000000 [ 13.364969] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 13.365203] page dumped because: kasan: bad access detected [ 13.365390] [ 13.365517] Memory state around the buggy address: [ 13.365941] ffff888102a43f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.366560] ffff888102a43f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.367322] >ffff888102a44000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 13.368044] ^ [ 13.368164] ffff888102a44080: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc [ 13.368393] ffff888102a44100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.368654] ==================================================================