Date
July 9, 2025, 11:07 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 16.452469] ================================================================== [ 16.452557] BUG: KASAN: invalid-free in kfree+0x270/0x3c8 [ 16.452622] Free of addr fff00000c7718001 by task kunit_try_catch/150 [ 16.452667] [ 16.452702] CPU: 1 UID: 0 PID: 150 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 16.452784] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.452810] Hardware name: linux,dummy-virt (DT) [ 16.452841] Call trace: [ 16.452863] show_stack+0x20/0x38 (C) [ 16.452912] dump_stack_lvl+0x8c/0xd0 [ 16.452960] print_report+0x118/0x608 [ 16.453005] kasan_report_invalid_free+0xc0/0xe8 [ 16.453052] __kasan_kfree_large+0x5c/0xa8 [ 16.453158] free_large_kmalloc+0x64/0x190 [ 16.453210] kfree+0x270/0x3c8 [ 16.453278] kmalloc_large_invalid_free+0x108/0x270 [ 16.453335] kunit_try_run_case+0x170/0x3f0 [ 16.453383] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.453433] kthread+0x328/0x630 [ 16.453474] ret_from_fork+0x10/0x20 [ 16.453529] [ 16.453550] The buggy address belongs to the physical page: [ 16.453581] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107718 [ 16.453632] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 16.453678] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 16.453731] page_type: f8(unknown) [ 16.453770] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 16.453817] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 16.453864] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 16.453911] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 16.453958] head: 0bfffe0000000002 ffffc1ffc31dc601 00000000ffffffff 00000000ffffffff [ 16.454004] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 16.454042] page dumped because: kasan: bad access detected [ 16.454071] [ 16.454088] Memory state around the buggy address: [ 16.455074] fff00000c7717f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.455536] fff00000c7717f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.455595] >fff00000c7718000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 16.455648] ^ [ 16.455892] fff00000c7718080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 16.456231] fff00000c7718100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 16.456455] ==================================================================
[ 12.126861] ================================================================== [ 12.127850] BUG: KASAN: invalid-free in kfree+0x274/0x3f0 [ 12.128084] Free of addr ffff8881028c8001 by task kunit_try_catch/167 [ 12.128290] [ 12.128389] CPU: 0 UID: 0 PID: 167 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 12.128432] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.128443] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.128463] Call Trace: [ 12.128476] <TASK> [ 12.128492] dump_stack_lvl+0x73/0xb0 [ 12.128523] print_report+0xd1/0x650 [ 12.128545] ? __virt_addr_valid+0x1db/0x2d0 [ 12.128570] ? kasan_addr_to_slab+0x11/0xa0 [ 12.128590] ? kfree+0x274/0x3f0 [ 12.128611] kasan_report_invalid_free+0x10a/0x130 [ 12.128635] ? kfree+0x274/0x3f0 [ 12.128657] ? kfree+0x274/0x3f0 [ 12.128676] __kasan_kfree_large+0x86/0xd0 [ 12.128697] free_large_kmalloc+0x4b/0x110 [ 12.128732] kfree+0x274/0x3f0 [ 12.128756] kmalloc_large_invalid_free+0x120/0x2b0 [ 12.128779] ? __pfx_kmalloc_large_invalid_free+0x10/0x10 [ 12.128803] ? __schedule+0x10cc/0x2b60 [ 12.128825] ? __pfx_read_tsc+0x10/0x10 [ 12.128847] ? ktime_get_ts64+0x86/0x230 [ 12.128872] kunit_try_run_case+0x1a5/0x480 [ 12.128897] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.128919] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.128943] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.128966] ? __kthread_parkme+0x82/0x180 [ 12.128987] ? preempt_count_sub+0x50/0x80 [ 12.129012] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.129036] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.129060] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.129085] kthread+0x337/0x6f0 [ 12.129103] ? trace_preempt_on+0x20/0xc0 [ 12.129126] ? __pfx_kthread+0x10/0x10 [ 12.129146] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.129167] ? calculate_sigpending+0x7b/0xa0 [ 12.129191] ? __pfx_kthread+0x10/0x10 [ 12.129211] ret_from_fork+0x116/0x1d0 [ 12.129229] ? __pfx_kthread+0x10/0x10 [ 12.129249] ret_from_fork_asm+0x1a/0x30 [ 12.129279] </TASK> [ 12.129289] [ 12.138460] The buggy address belongs to the physical page: [ 12.138647] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1028c8 [ 12.139006] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 12.139469] flags: 0x200000000000040(head|node=0|zone=2) [ 12.139746] page_type: f8(unknown) [ 12.139926] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 12.140737] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 12.141359] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 12.141721] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 12.142064] head: 0200000000000002 ffffea00040a3201 00000000ffffffff 00000000ffffffff [ 12.142526] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 12.142880] page dumped because: kasan: bad access detected [ 12.143170] [ 12.143350] Memory state around the buggy address: [ 12.143623] ffff8881028c7f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.143968] ffff8881028c7f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.144558] >ffff8881028c8000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.144887] ^ [ 12.145058] ffff8881028c8080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.145429] ffff8881028c8100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.145986] ==================================================================