Date
July 20, 2025, 8:11 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 14.963891] ================================================================== [ 14.964021] BUG: KASAN: invalid-free in kfree+0x270/0x3c8 [ 14.964163] Free of addr fff00000c7698001 by task kunit_try_catch/151 [ 14.964223] [ 14.964287] CPU: 1 UID: 0 PID: 151 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 14.964367] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.964392] Hardware name: linux,dummy-virt (DT) [ 14.964665] Call trace: [ 14.964801] show_stack+0x20/0x38 (C) [ 14.964863] dump_stack_lvl+0x8c/0xd0 [ 14.965033] print_report+0x118/0x5d0 [ 14.965238] kasan_report_invalid_free+0xc0/0xe8 [ 14.965313] __kasan_kfree_large+0x5c/0xa8 [ 14.965639] free_large_kmalloc+0x64/0x190 [ 14.965705] kfree+0x270/0x3c8 [ 14.965746] kmalloc_large_invalid_free+0x108/0x270 [ 14.965804] kunit_try_run_case+0x170/0x3f0 [ 14.965857] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 14.965924] kthread+0x328/0x630 [ 14.965974] ret_from_fork+0x10/0x20 [ 14.966055] [ 14.966077] The buggy address belongs to the physical page: [ 14.966110] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107698 [ 14.966161] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 14.966244] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 14.966294] page_type: f8(unknown) [ 14.966334] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 14.966382] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 14.966439] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 14.966487] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 14.966534] head: 0bfffe0000000002 ffffc1ffc31da601 00000000ffffffff 00000000ffffffff [ 14.966590] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 14.966630] page dumped because: kasan: bad access detected [ 14.966670] [ 14.966703] Memory state around the buggy address: [ 14.966742] fff00000c7697f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.966785] fff00000c7697f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.966825] >fff00000c7698000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 14.966861] ^ [ 14.966888] fff00000c7698080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 14.966928] fff00000c7698100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 14.967003] ==================================================================
[ 12.498992] ================================================================== [ 12.499502] BUG: KASAN: invalid-free in kfree+0x274/0x3f0 [ 12.499797] Free of addr ffff888102a3c001 by task kunit_try_catch/168 [ 12.500257] [ 12.500394] CPU: 1 UID: 0 PID: 168 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 12.500440] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.500451] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.500483] Call Trace: [ 12.500495] <TASK> [ 12.500509] dump_stack_lvl+0x73/0xb0 [ 12.500550] print_report+0xd1/0x610 [ 12.500572] ? __virt_addr_valid+0x1db/0x2d0 [ 12.500595] ? kasan_addr_to_slab+0x11/0xa0 [ 12.500626] ? kfree+0x274/0x3f0 [ 12.500648] kasan_report_invalid_free+0x10a/0x130 [ 12.500672] ? kfree+0x274/0x3f0 [ 12.500694] ? kfree+0x274/0x3f0 [ 12.500724] __kasan_kfree_large+0x86/0xd0 [ 12.500745] free_large_kmalloc+0x4b/0x110 [ 12.500768] kfree+0x274/0x3f0 [ 12.500803] kmalloc_large_invalid_free+0x120/0x2b0 [ 12.500824] ? __pfx_kmalloc_large_invalid_free+0x10/0x10 [ 12.500860] ? __pfx_queued_spin_lock_slowpath+0x10/0x10 [ 12.500885] ? __pfx_read_tsc+0x10/0x10 [ 12.500906] ? ktime_get_ts64+0x86/0x230 [ 12.500929] kunit_try_run_case+0x1a5/0x480 [ 12.500953] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.500975] ? _raw_spin_lock_irqsave+0xf9/0x100 [ 12.501006] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.501029] ? __kthread_parkme+0x82/0x180 [ 12.501090] ? preempt_count_sub+0x50/0x80 [ 12.501114] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.501137] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.501160] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.501183] kthread+0x337/0x6f0 [ 12.501231] ? trace_preempt_on+0x20/0xc0 [ 12.501253] ? __pfx_kthread+0x10/0x10 [ 12.501285] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.501306] ? calculate_sigpending+0x7b/0xa0 [ 12.501329] ? __pfx_kthread+0x10/0x10 [ 12.501349] ret_from_fork+0x116/0x1d0 [ 12.501368] ? __pfx_kthread+0x10/0x10 [ 12.501388] ret_from_fork_asm+0x1a/0x30 [ 12.501418] </TASK> [ 12.501428] [ 12.513875] The buggy address belongs to the physical page: [ 12.514444] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102a3c [ 12.515287] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 12.516048] flags: 0x200000000000040(head|node=0|zone=2) [ 12.516764] page_type: f8(unknown) [ 12.517091] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 12.517331] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 12.517583] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 12.517819] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 12.518056] head: 0200000000000002 ffffea00040a8f01 00000000ffffffff 00000000ffffffff [ 12.518298] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 12.518652] page dumped because: kasan: bad access detected [ 12.519234] [ 12.519392] Memory state around the buggy address: [ 12.520026] ffff888102a3bf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.520710] ffff888102a3bf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.521411] >ffff888102a3c000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.522050] ^ [ 12.522415] ffff888102a3c080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.523237] ffff888102a3c100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.524008] ==================================================================