Date
July 16, 2025, 3:10 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 16.453216] ================================================================== [ 16.453397] BUG: KASAN: invalid-free in kfree+0x270/0x3c8 [ 16.453666] Free of addr fff00000c7890001 by task kunit_try_catch/150 [ 16.453806] [ 16.453841] CPU: 1 UID: 0 PID: 150 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 16.453943] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.453970] Hardware name: linux,dummy-virt (DT) [ 16.454047] Call trace: [ 16.454076] show_stack+0x20/0x38 (C) [ 16.454318] dump_stack_lvl+0x8c/0xd0 [ 16.454447] print_report+0x118/0x5d0 [ 16.454498] kasan_report_invalid_free+0xc0/0xe8 [ 16.454565] __kasan_kfree_large+0x5c/0xa8 [ 16.454647] free_large_kmalloc+0x64/0x190 [ 16.454691] kfree+0x270/0x3c8 [ 16.454743] kmalloc_large_invalid_free+0x108/0x270 [ 16.454791] kunit_try_run_case+0x170/0x3f0 [ 16.454839] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.454980] kthread+0x328/0x630 [ 16.455035] ret_from_fork+0x10/0x20 [ 16.455082] [ 16.455101] The buggy address belongs to the physical page: [ 16.455173] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107890 [ 16.455238] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 16.455375] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 16.455545] page_type: f8(unknown) [ 16.455590] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 16.455640] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 16.455732] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 16.455780] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 16.455935] head: 0bfffe0000000002 ffffc1ffc31e2401 00000000ffffffff 00000000ffffffff [ 16.456077] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 16.456188] page dumped because: kasan: bad access detected [ 16.456311] [ 16.456405] Memory state around the buggy address: [ 16.456467] fff00000c788ff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.456833] fff00000c788ff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.456900] >fff00000c7890000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 16.457009] ^ [ 16.457103] fff00000c7890080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 16.457146] fff00000c7890100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 16.457486] ==================================================================
[ 12.111270] ================================================================== [ 12.111843] BUG: KASAN: invalid-free in kfree+0x274/0x3f0 [ 12.112084] Free of addr ffff888102a34001 by task kunit_try_catch/167 [ 12.112522] [ 12.112620] CPU: 0 UID: 0 PID: 167 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 12.112662] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.112673] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.112693] Call Trace: [ 12.112704] <TASK> [ 12.112719] dump_stack_lvl+0x73/0xb0 [ 12.112749] print_report+0xd1/0x610 [ 12.112789] ? __virt_addr_valid+0x1db/0x2d0 [ 12.112812] ? kasan_addr_to_slab+0x11/0xa0 [ 12.112833] ? kfree+0x274/0x3f0 [ 12.112854] kasan_report_invalid_free+0x10a/0x130 [ 12.112879] ? kfree+0x274/0x3f0 [ 12.112902] ? kfree+0x274/0x3f0 [ 12.112923] __kasan_kfree_large+0x86/0xd0 [ 12.112945] free_large_kmalloc+0x4b/0x110 [ 12.112969] kfree+0x274/0x3f0 [ 12.112993] kmalloc_large_invalid_free+0x120/0x2b0 [ 12.113239] ? __pfx_kmalloc_large_invalid_free+0x10/0x10 [ 12.113272] ? __schedule+0x10cc/0x2b60 [ 12.113294] ? __pfx_read_tsc+0x10/0x10 [ 12.113315] ? ktime_get_ts64+0x86/0x230 [ 12.113339] kunit_try_run_case+0x1a5/0x480 [ 12.113364] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.113387] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.113411] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.113445] ? __kthread_parkme+0x82/0x180 [ 12.113466] ? preempt_count_sub+0x50/0x80 [ 12.113490] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.113514] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.113539] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.113564] kthread+0x337/0x6f0 [ 12.113583] ? trace_preempt_on+0x20/0xc0 [ 12.113607] ? __pfx_kthread+0x10/0x10 [ 12.113627] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.113649] ? calculate_sigpending+0x7b/0xa0 [ 12.113673] ? __pfx_kthread+0x10/0x10 [ 12.113695] ret_from_fork+0x116/0x1d0 [ 12.113713] ? __pfx_kthread+0x10/0x10 [ 12.113734] ret_from_fork_asm+0x1a/0x30 [ 12.113777] </TASK> [ 12.113787] [ 12.121317] The buggy address belongs to the physical page: [ 12.121568] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102a34 [ 12.121923] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 12.122302] flags: 0x200000000000040(head|node=0|zone=2) [ 12.122564] page_type: f8(unknown) [ 12.122698] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 12.122942] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 12.123261] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 12.123829] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 12.124291] head: 0200000000000002 ffffea00040a8d01 00000000ffffffff 00000000ffffffff [ 12.124608] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 12.125138] page dumped because: kasan: bad access detected [ 12.125363] [ 12.125464] Memory state around the buggy address: [ 12.125655] ffff888102a33f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.125952] ffff888102a33f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.126305] >ffff888102a34000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.126628] ^ [ 12.126746] ffff888102a34080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.126974] ffff888102a34100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.127288] ==================================================================