Date
July 17, 2025, 11:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 15.125480] ================================================================== [ 15.125579] BUG: KASAN: invalid-free in kfree+0x270/0x3c8 [ 15.125669] Free of addr fff00000c65c4001 by task kunit_try_catch/151 [ 15.125716] [ 15.125761] CPU: 0 UID: 0 PID: 151 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 15.125857] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.125891] Hardware name: linux,dummy-virt (DT) [ 15.125921] Call trace: [ 15.125942] show_stack+0x20/0x38 (C) [ 15.126009] dump_stack_lvl+0x8c/0xd0 [ 15.126056] print_report+0x118/0x5d0 [ 15.126100] kasan_report_invalid_free+0xc0/0xe8 [ 15.126153] __kasan_kfree_large+0x5c/0xa8 [ 15.126198] free_large_kmalloc+0x64/0x190 [ 15.126242] kfree+0x270/0x3c8 [ 15.126281] kmalloc_large_invalid_free+0x108/0x270 [ 15.126327] kunit_try_run_case+0x170/0x3f0 [ 15.126382] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.126432] kthread+0x328/0x630 [ 15.126471] ret_from_fork+0x10/0x20 [ 15.126525] [ 15.126545] The buggy address belongs to the physical page: [ 15.126577] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1065c4 [ 15.126629] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 15.126685] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 15.126737] page_type: f8(unknown) [ 15.126776] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 15.126833] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 15.126891] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 15.126954] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 15.127426] head: 0bfffe0000000002 ffffc1ffc3197101 00000000ffffffff 00000000ffffffff [ 15.127486] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 15.127534] page dumped because: kasan: bad access detected [ 15.128011] [ 15.128164] Memory state around the buggy address: [ 15.128301] fff00000c65c3f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.128416] fff00000c65c3f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.128480] >fff00000c65c4000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 15.128653] ^ [ 15.128689] fff00000c65c4080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 15.128731] fff00000c65c4100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 15.128912] ==================================================================
[ 12.573862] ================================================================== [ 12.574305] BUG: KASAN: invalid-free in kfree+0x274/0x3f0 [ 12.574519] Free of addr ffff888102a40001 by task kunit_try_catch/167 [ 12.574735] [ 12.574821] CPU: 1 UID: 0 PID: 167 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 12.574863] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.574873] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.574892] Call Trace: [ 12.574903] <TASK> [ 12.574918] dump_stack_lvl+0x73/0xb0 [ 12.574945] print_report+0xd1/0x610 [ 12.574967] ? __virt_addr_valid+0x1db/0x2d0 [ 12.574989] ? kasan_addr_to_slab+0x11/0xa0 [ 12.575007] ? kfree+0x274/0x3f0 [ 12.575027] kasan_report_invalid_free+0x10a/0x130 [ 12.575050] ? kfree+0x274/0x3f0 [ 12.575072] ? kfree+0x274/0x3f0 [ 12.575091] __kasan_kfree_large+0x86/0xd0 [ 12.575112] free_large_kmalloc+0x4b/0x110 [ 12.575135] kfree+0x274/0x3f0 [ 12.575158] kmalloc_large_invalid_free+0x120/0x2b0 [ 12.575180] ? __pfx_kmalloc_large_invalid_free+0x10/0x10 [ 12.575202] ? __schedule+0x10cc/0x2b60 [ 12.575223] ? __pfx_read_tsc+0x10/0x10 [ 12.575243] ? ktime_get_ts64+0x86/0x230 [ 12.575266] kunit_try_run_case+0x1a5/0x480 [ 12.575289] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.575310] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.575331] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.575353] ? __kthread_parkme+0x82/0x180 [ 12.575373] ? preempt_count_sub+0x50/0x80 [ 12.575395] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.575417] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.575440] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.575462] kthread+0x337/0x6f0 [ 12.575480] ? trace_preempt_on+0x20/0xc0 [ 12.575503] ? __pfx_kthread+0x10/0x10 [ 12.575522] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.575542] ? calculate_sigpending+0x7b/0xa0 [ 12.575603] ? __pfx_kthread+0x10/0x10 [ 12.575625] ret_from_fork+0x116/0x1d0 [ 12.575643] ? __pfx_kthread+0x10/0x10 [ 12.575664] ret_from_fork_asm+0x1a/0x30 [ 12.575694] </TASK> [ 12.575704] [ 12.583729] The buggy address belongs to the physical page: [ 12.583982] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102a40 [ 12.584447] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 12.584767] flags: 0x200000000000040(head|node=0|zone=2) [ 12.584984] page_type: f8(unknown) [ 12.585174] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 12.585648] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 12.585999] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 12.586409] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 12.586669] head: 0200000000000002 ffffea00040a9001 00000000ffffffff 00000000ffffffff [ 12.586898] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 12.587262] page dumped because: kasan: bad access detected [ 12.587508] [ 12.587609] Memory state around the buggy address: [ 12.587834] ffff888102a3ff00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.588156] ffff888102a3ff80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.588610] >ffff888102a40000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.588832] ^ [ 12.588950] ffff888102a40080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.589365] ffff888102a40100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.589743] ==================================================================