Date
June 24, 2025, 12:47 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 23.363425] ================================================================== [ 23.364008] BUG: KASAN: invalid-free in kfree+0x270/0x3c8 [ 23.364226] Free of addr fff00000c77dc001 by task kunit_try_catch/152 [ 23.364402] [ 23.364490] CPU: 0 UID: 0 PID: 152 Comm: kunit_try_catch Tainted: G B N 6.15.4-rc2 #1 PREEMPT [ 23.364864] Tainted: [B]=BAD_PAGE, [N]=TEST [ 23.364987] Hardware name: linux,dummy-virt (DT) [ 23.365072] Call trace: [ 23.365137] show_stack+0x20/0x38 (C) [ 23.365777] dump_stack_lvl+0x8c/0xd0 [ 23.367427] print_report+0x118/0x608 [ 23.367601] kasan_report_invalid_free+0xc0/0xe8 [ 23.367747] __kasan_kfree_large+0x5c/0xa8 [ 23.367940] free_large_kmalloc+0x64/0x190 [ 23.368085] kfree+0x270/0x3c8 [ 23.368199] kmalloc_large_invalid_free+0x108/0x270 [ 23.369143] kunit_try_run_case+0x170/0x3f0 [ 23.370162] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 23.370693] kthread+0x328/0x630 [ 23.370966] ret_from_fork+0x10/0x20 [ 23.371100] [ 23.371152] The buggy address belongs to the physical page: [ 23.371307] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1077dc [ 23.371675] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 23.371941] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 23.372070] page_type: f8(unknown) [ 23.372241] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 23.372464] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 23.372625] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 23.372765] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 23.372967] head: 0bfffe0000000002 ffffc1ffc31df701 00000000ffffffff 00000000ffffffff [ 23.373232] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 23.373345] page dumped because: kasan: bad access detected [ 23.373480] [ 23.373534] Memory state around the buggy address: [ 23.373619] fff00000c77dbf00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 23.374044] fff00000c77dbf80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 23.374208] >fff00000c77dc000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 23.374323] ^ [ 23.374564] fff00000c77dc080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 23.374679] fff00000c77dc100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 23.374847] ==================================================================
[ 11.134698] ================================================================== [ 11.135186] BUG: KASAN: invalid-free in kfree+0x274/0x3f0 [ 11.135772] Free of addr ffff888102858001 by task kunit_try_catch/170 [ 11.136688] [ 11.136837] CPU: 1 UID: 0 PID: 170 Comm: kunit_try_catch Tainted: G B N 6.15.4-rc2 #1 PREEMPT(voluntary) [ 11.136927] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.136948] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.136986] Call Trace: [ 11.137011] <TASK> [ 11.137046] dump_stack_lvl+0x73/0xb0 [ 11.137106] print_report+0xd1/0x650 [ 11.137147] ? __virt_addr_valid+0x1db/0x2d0 [ 11.137185] ? kasan_addr_to_slab+0x11/0xa0 [ 11.137219] ? kfree+0x274/0x3f0 [ 11.137250] kasan_report_invalid_free+0x10a/0x130 [ 11.137290] ? kfree+0x274/0x3f0 [ 11.137329] ? kfree+0x274/0x3f0 [ 11.137364] __kasan_kfree_large+0x86/0xd0 [ 11.137405] free_large_kmalloc+0x4b/0x110 [ 11.137427] kfree+0x274/0x3f0 [ 11.137448] kmalloc_large_invalid_free+0x120/0x2b0 [ 11.137470] ? __pfx_kmalloc_large_invalid_free+0x10/0x10 [ 11.137493] ? __pfx_kmalloc_large_invalid_free+0x10/0x10 [ 11.137517] kunit_try_run_case+0x1a5/0x480 [ 11.137544] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.137573] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.137596] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.137618] ? __kthread_parkme+0x82/0x180 [ 11.137659] ? preempt_count_sub+0x50/0x80 [ 11.137683] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.137705] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.137726] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.137747] kthread+0x337/0x6f0 [ 11.137763] ? trace_preempt_on+0x20/0xc0 [ 11.137785] ? __pfx_kthread+0x10/0x10 [ 11.137802] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.137821] ? calculate_sigpending+0x7b/0xa0 [ 11.137841] ? __pfx_kthread+0x10/0x10 [ 11.137858] ret_from_fork+0x41/0x80 [ 11.137879] ? __pfx_kthread+0x10/0x10 [ 11.137895] ret_from_fork_asm+0x1a/0x30 [ 11.137925] </TASK> [ 11.137937] [ 11.147343] The buggy address belongs to the physical page: [ 11.147900] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102858 [ 11.148395] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 11.148896] flags: 0x200000000000040(head|node=0|zone=2) [ 11.149219] page_type: f8(unknown) [ 11.149518] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 11.150089] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 11.150400] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 11.150929] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 11.151234] head: 0200000000000002 ffffea00040a1601 00000000ffffffff 00000000ffffffff [ 11.151740] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 11.152086] page dumped because: kasan: bad access detected [ 11.152348] [ 11.152518] Memory state around the buggy address: [ 11.152750] ffff888102857f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.153213] ffff888102857f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.153702] >ffff888102858000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 11.154008] ^ [ 11.154194] ffff888102858080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 11.154727] ffff888102858100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 11.155088] ==================================================================