Date
July 23, 2025, 2:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 15.155105] ================================================================== [ 15.155419] BUG: KASAN: invalid-free in kfree+0x270/0x3c8 [ 15.155579] Free of addr fff00000c6500001 by task kunit_try_catch/150 [ 15.155634] [ 15.155764] CPU: 1 UID: 0 PID: 150 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7 #1 PREEMPT [ 15.155847] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.155885] Hardware name: linux,dummy-virt (DT) [ 15.155921] Call trace: [ 15.155982] show_stack+0x20/0x38 (C) [ 15.156083] dump_stack_lvl+0x8c/0xd0 [ 15.156319] print_report+0x118/0x5d0 [ 15.156430] kasan_report_invalid_free+0xc0/0xe8 [ 15.156539] __kasan_kfree_large+0x5c/0xa8 [ 15.156585] free_large_kmalloc+0x64/0x190 [ 15.156630] kfree+0x270/0x3c8 [ 15.156677] kmalloc_large_invalid_free+0x108/0x270 [ 15.156871] kunit_try_run_case+0x170/0x3f0 [ 15.156917] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.157026] kthread+0x328/0x630 [ 15.157414] ret_from_fork+0x10/0x20 [ 15.157623] [ 15.157645] The buggy address belongs to the physical page: [ 15.157675] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106500 [ 15.158237] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 15.158608] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 15.158819] page_type: f8(unknown) [ 15.158954] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 15.159004] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 15.159110] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 15.159162] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 15.159233] head: 0bfffe0000000002 ffffc1ffc3194001 00000000ffffffff 00000000ffffffff [ 15.159282] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 15.159388] page dumped because: kasan: bad access detected [ 15.159717] [ 15.159792] Memory state around the buggy address: [ 15.159862] fff00000c64fff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.159907] fff00000c64fff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.159998] >fff00000c6500000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 15.160222] ^ [ 15.160256] fff00000c6500080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 15.160299] fff00000c6500100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 15.160350] ==================================================================
[ 12.237038] ================================================================== [ 12.237578] BUG: KASAN: invalid-free in kfree+0x274/0x3f0 [ 12.237880] Free of addr ffff88810294c001 by task kunit_try_catch/167 [ 12.238153] [ 12.238313] CPU: 0 UID: 0 PID: 167 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7 #1 PREEMPT(voluntary) [ 12.238357] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.238369] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.238389] Call Trace: [ 12.238401] <TASK> [ 12.238415] dump_stack_lvl+0x73/0xb0 [ 12.238444] print_report+0xd1/0x610 [ 12.238465] ? __virt_addr_valid+0x1db/0x2d0 [ 12.238487] ? kasan_addr_to_slab+0x11/0xa0 [ 12.238506] ? kfree+0x274/0x3f0 [ 12.238527] kasan_report_invalid_free+0x10a/0x130 [ 12.238551] ? kfree+0x274/0x3f0 [ 12.238573] ? kfree+0x274/0x3f0 [ 12.238593] __kasan_kfree_large+0x86/0xd0 [ 12.238613] free_large_kmalloc+0x4b/0x110 [ 12.238636] kfree+0x274/0x3f0 [ 12.238660] kmalloc_large_invalid_free+0x120/0x2b0 [ 12.238682] ? __pfx_kmalloc_large_invalid_free+0x10/0x10 [ 12.238705] ? __schedule+0x10c6/0x2b60 [ 12.238727] ? __pfx_read_tsc+0x10/0x10 [ 12.238746] ? ktime_get_ts64+0x86/0x230 [ 12.238770] kunit_try_run_case+0x1a5/0x480 [ 12.238794] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.238828] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.238851] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.238874] ? __kthread_parkme+0x82/0x180 [ 12.238894] ? preempt_count_sub+0x50/0x80 [ 12.238917] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.238940] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.238962] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.238985] kthread+0x337/0x6f0 [ 12.239004] ? trace_preempt_on+0x20/0xc0 [ 12.239025] ? __pfx_kthread+0x10/0x10 [ 12.239046] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.239066] ? calculate_sigpending+0x7b/0xa0 [ 12.239089] ? __pfx_kthread+0x10/0x10 [ 12.239110] ret_from_fork+0x116/0x1d0 [ 12.239128] ? __pfx_kthread+0x10/0x10 [ 12.239148] ret_from_fork_asm+0x1a/0x30 [ 12.239177] </TASK> [ 12.239187] [ 12.246889] The buggy address belongs to the physical page: [ 12.247348] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10294c [ 12.247622] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 12.247865] flags: 0x200000000000040(head|node=0|zone=2) [ 12.248400] page_type: f8(unknown) [ 12.248599] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 12.248972] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 12.249319] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 12.249560] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 12.249794] head: 0200000000000002 ffffea00040a5301 00000000ffffffff 00000000ffffffff [ 12.250375] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 12.250720] page dumped because: kasan: bad access detected [ 12.250969] [ 12.251041] Memory state around the buggy address: [ 12.251426] ffff88810294bf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.251753] ffff88810294bf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.252064] >ffff88810294c000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.252520] ^ [ 12.252645] ffff88810294c080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.252906] ffff88810294c100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.253240] ==================================================================