Date
July 17, 2025, 11:11 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 16.405650] ================================================================== [ 16.405834] BUG: KASAN: invalid-free in kfree+0x270/0x3c8 [ 16.405999] Free of addr fff00000c789c001 by task kunit_try_catch/150 [ 16.406053] [ 16.406093] CPU: 1 UID: 0 PID: 150 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 16.406304] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.406332] Hardware name: linux,dummy-virt (DT) [ 16.406364] Call trace: [ 16.406389] show_stack+0x20/0x38 (C) [ 16.406440] dump_stack_lvl+0x8c/0xd0 [ 16.406488] print_report+0x118/0x5d0 [ 16.406533] kasan_report_invalid_free+0xc0/0xe8 [ 16.406580] __kasan_kfree_large+0x5c/0xa8 [ 16.406625] free_large_kmalloc+0x64/0x190 [ 16.406795] kfree+0x270/0x3c8 [ 16.406990] kmalloc_large_invalid_free+0x108/0x270 [ 16.407046] kunit_try_run_case+0x170/0x3f0 [ 16.407134] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.407273] kthread+0x328/0x630 [ 16.407320] ret_from_fork+0x10/0x20 [ 16.407396] [ 16.407436] The buggy address belongs to the physical page: [ 16.407471] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10789c [ 16.407565] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 16.407613] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 16.407666] page_type: f8(unknown) [ 16.407704] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 16.407958] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 16.408255] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 16.408374] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 16.408515] head: 0bfffe0000000002 ffffc1ffc31e2701 00000000ffffffff 00000000ffffffff [ 16.408624] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 16.408838] page dumped because: kasan: bad access detected [ 16.408886] [ 16.408905] Memory state around the buggy address: [ 16.408939] fff00000c789bf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.408986] fff00000c789bf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.409129] >fff00000c789c000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 16.409291] ^ [ 16.409383] fff00000c789c080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 16.409444] fff00000c789c100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 16.409676] ==================================================================
[ 11.775629] ================================================================== [ 11.776654] BUG: KASAN: invalid-free in kfree+0x274/0x3f0 [ 11.777215] Free of addr ffff88810294c001 by task kunit_try_catch/167 [ 11.777769] [ 11.778024] CPU: 0 UID: 0 PID: 167 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 11.778088] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.778099] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.778121] Call Trace: [ 11.778132] <TASK> [ 11.778150] dump_stack_lvl+0x73/0xb0 [ 11.778181] print_report+0xd1/0x610 [ 11.778204] ? __virt_addr_valid+0x1db/0x2d0 [ 11.778234] ? kasan_addr_to_slab+0x11/0xa0 [ 11.778254] ? kfree+0x274/0x3f0 [ 11.778275] kasan_report_invalid_free+0x10a/0x130 [ 11.778299] ? kfree+0x274/0x3f0 [ 11.778322] ? kfree+0x274/0x3f0 [ 11.778341] __kasan_kfree_large+0x86/0xd0 [ 11.778362] free_large_kmalloc+0x4b/0x110 [ 11.778385] kfree+0x274/0x3f0 [ 11.778410] kmalloc_large_invalid_free+0x120/0x2b0 [ 11.778433] ? __pfx_kmalloc_large_invalid_free+0x10/0x10 [ 11.778456] ? __schedule+0x10cc/0x2b60 [ 11.778479] ? __pfx_read_tsc+0x10/0x10 [ 11.778500] ? ktime_get_ts64+0x86/0x230 [ 11.778524] kunit_try_run_case+0x1a5/0x480 [ 11.778550] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.778572] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.778606] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.778629] ? __kthread_parkme+0x82/0x180 [ 11.778649] ? preempt_count_sub+0x50/0x80 [ 11.778674] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.778697] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.778720] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.778743] kthread+0x337/0x6f0 [ 11.778762] ? trace_preempt_on+0x20/0xc0 [ 11.778785] ? __pfx_kthread+0x10/0x10 [ 11.778805] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.778844] ? calculate_sigpending+0x7b/0xa0 [ 11.778869] ? __pfx_kthread+0x10/0x10 [ 11.778890] ret_from_fork+0x116/0x1d0 [ 11.778908] ? __pfx_kthread+0x10/0x10 [ 11.778927] ret_from_fork_asm+0x1a/0x30 [ 11.778960] </TASK> [ 11.778970] [ 11.792541] The buggy address belongs to the physical page: [ 11.793117] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10294c [ 11.793377] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 11.793643] flags: 0x200000000000040(head|node=0|zone=2) [ 11.794175] page_type: f8(unknown) [ 11.794501] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 11.795240] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 11.796370] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 11.797193] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 11.797437] head: 0200000000000002 ffffea00040a5301 00000000ffffffff 00000000ffffffff [ 11.797877] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 11.798580] page dumped because: kasan: bad access detected [ 11.799080] [ 11.799294] Memory state around the buggy address: [ 11.799779] ffff88810294bf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.800254] ffff88810294bf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.800478] >ffff88810294c000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 11.800864] ^ [ 11.801466] ffff88810294c080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 11.802199] ffff88810294c100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 11.802903] ==================================================================