Date
June 17, 2025, 6:35 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 16.655476] ================================================================== [ 16.655593] BUG: KASAN: invalid-free in kfree+0x270/0x3c8 [ 16.655793] Free of addr fff00000c177c001 by task kunit_try_catch/159 [ 16.655952] [ 16.655998] CPU: 1 UID: 0 PID: 159 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc2-next-20250617 #1 PREEMPT [ 16.656090] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.656116] Hardware name: linux,dummy-virt (DT) [ 16.656325] Call trace: [ 16.656374] show_stack+0x20/0x38 (C) [ 16.656449] dump_stack_lvl+0x8c/0xd0 [ 16.656500] print_report+0x118/0x608 [ 16.656569] kasan_report_invalid_free+0xc0/0xe8 [ 16.656624] __kasan_kfree_large+0x5c/0xa8 [ 16.656688] free_large_kmalloc+0x64/0x190 [ 16.656755] kfree+0x270/0x3c8 [ 16.656808] kmalloc_large_invalid_free+0x108/0x270 [ 16.656857] kunit_try_run_case+0x170/0x3f0 [ 16.656915] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.656984] kthread+0x328/0x630 [ 16.657025] ret_from_fork+0x10/0x20 [ 16.657074] [ 16.657121] The buggy address belongs to the physical page: [ 16.657359] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10177c [ 16.657427] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 16.657473] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 16.657527] page_type: f8(unknown) [ 16.657697] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 16.657822] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 16.657982] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 16.658086] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 16.658176] head: 0bfffe0000000002 ffffc1ffc305df01 00000000ffffffff 00000000ffffffff [ 16.658225] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 16.658286] page dumped because: kasan: bad access detected [ 16.658318] [ 16.658336] Memory state around the buggy address: [ 16.658368] fff00000c177bf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.658539] fff00000c177bf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.658658] >fff00000c177c000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 16.658770] ^ [ 16.658835] fff00000c177c080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 16.658923] fff00000c177c100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 16.659001] ==================================================================
[ 17.040930] ================================================================== [ 17.042238] BUG: KASAN: invalid-free in kfree+0x274/0x3f0 [ 17.043037] Free of addr ffff888102a88001 by task kunit_try_catch/177 [ 17.043709] [ 17.043979] CPU: 1 UID: 0 PID: 177 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc2-next-20250617 #1 PREEMPT(voluntary) [ 17.044102] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.044499] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 17.044557] Call Trace: [ 17.044594] <TASK> [ 17.044631] dump_stack_lvl+0x73/0xb0 [ 17.044675] print_report+0xd1/0x650 [ 17.044709] ? __virt_addr_valid+0x1db/0x2d0 [ 17.044744] ? kasan_addr_to_slab+0x11/0xa0 [ 17.044773] ? kfree+0x274/0x3f0 [ 17.044803] kasan_report_invalid_free+0x10a/0x130 [ 17.044867] ? kfree+0x274/0x3f0 [ 17.044904] ? kfree+0x274/0x3f0 [ 17.044934] __kasan_kfree_large+0x86/0xd0 [ 17.044965] free_large_kmalloc+0x4b/0x110 [ 17.044997] kfree+0x274/0x3f0 [ 17.045032] kmalloc_large_invalid_free+0x120/0x2b0 [ 17.045064] ? __pfx_kmalloc_large_invalid_free+0x10/0x10 [ 17.045096] ? __schedule+0x10cc/0x2b60 [ 17.045125] ? __pfx_read_tsc+0x10/0x10 [ 17.045155] ? ktime_get_ts64+0x86/0x230 [ 17.045189] kunit_try_run_case+0x1a5/0x480 [ 17.045247] ? __pfx_kunit_try_run_case+0x10/0x10 [ 17.045320] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 17.045391] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 17.045432] ? __kthread_parkme+0x82/0x180 [ 17.045463] ? preempt_count_sub+0x50/0x80 [ 17.045495] ? __pfx_kunit_try_run_case+0x10/0x10 [ 17.045528] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.045561] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 17.045593] kthread+0x337/0x6f0 [ 17.045620] ? trace_preempt_on+0x20/0xc0 [ 17.045652] ? __pfx_kthread+0x10/0x10 [ 17.045680] ? _raw_spin_unlock_irq+0x47/0x80 [ 17.045712] ? calculate_sigpending+0x7b/0xa0 [ 17.045747] ? __pfx_kthread+0x10/0x10 [ 17.045776] ret_from_fork+0x116/0x1d0 [ 17.045800] ? __pfx_kthread+0x10/0x10 [ 17.045828] ret_from_fork_asm+0x1a/0x30 [ 17.045898] </TASK> [ 17.045914] [ 17.063079] The buggy address belongs to the physical page: [ 17.063738] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102a88 [ 17.064500] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 17.064951] flags: 0x200000000000040(head|node=0|zone=2) [ 17.065614] page_type: f8(unknown) [ 17.065990] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 17.066959] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 17.067721] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 17.068392] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 17.069049] head: 0200000000000002 ffffea00040aa201 00000000ffffffff 00000000ffffffff [ 17.069870] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 17.070754] page dumped because: kasan: bad access detected [ 17.071188] [ 17.071395] Memory state around the buggy address: [ 17.071712] ffff888102a87f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.072476] ffff888102a87f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.073063] >ffff888102a88000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.073782] ^ [ 17.074111] ffff888102a88080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.075004] ffff888102a88100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.075676] ==================================================================