Date
July 6, 2025, 11:09 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 17.857241] ================================================================== [ 17.857322] BUG: KASAN: invalid-free in kfree+0x270/0x3c8 [ 17.857378] Free of addr fff00000c65e4001 by task kunit_try_catch/150 [ 17.857688] [ 17.857746] CPU: 1 UID: 0 PID: 150 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 17.857836] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.857862] Hardware name: linux,dummy-virt (DT) [ 17.857911] Call trace: [ 17.857957] show_stack+0x20/0x38 (C) [ 17.858032] dump_stack_lvl+0x8c/0xd0 [ 17.858204] print_report+0x118/0x608 [ 17.858313] kasan_report_invalid_free+0xc0/0xe8 [ 17.858458] __kasan_kfree_large+0x5c/0xa8 [ 17.858572] free_large_kmalloc+0x64/0x190 [ 17.858619] kfree+0x270/0x3c8 [ 17.858797] kmalloc_large_invalid_free+0x108/0x270 [ 17.859035] kunit_try_run_case+0x170/0x3f0 [ 17.859154] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.859318] kthread+0x328/0x630 [ 17.859398] ret_from_fork+0x10/0x20 [ 17.859444] [ 17.859607] The buggy address belongs to the physical page: [ 17.859686] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1065e4 [ 17.859826] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 17.859942] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 17.860028] page_type: f8(unknown) [ 17.860140] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 17.860188] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 17.860263] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 17.860447] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 17.860621] head: 0bfffe0000000002 ffffc1ffc3197901 00000000ffffffff 00000000ffffffff [ 17.860774] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 17.860882] page dumped because: kasan: bad access detected [ 17.860932] [ 17.860951] Memory state around the buggy address: [ 17.861089] fff00000c65e3f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.861155] fff00000c65e3f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.861421] >fff00000c65e4000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.861581] ^ [ 17.861659] fff00000c65e4080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.861739] fff00000c65e4100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.861837] ==================================================================
[ 11.114229] ================================================================== [ 11.114799] BUG: KASAN: invalid-free in kfree+0x274/0x3f0 [ 11.115083] Free of addr ffff888102954001 by task kunit_try_catch/167 [ 11.115473] [ 11.115614] CPU: 1 UID: 0 PID: 167 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 11.115671] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.115684] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.115705] Call Trace: [ 11.115729] <TASK> [ 11.115745] dump_stack_lvl+0x73/0xb0 [ 11.115773] print_report+0xd1/0x650 [ 11.115795] ? __virt_addr_valid+0x1db/0x2d0 [ 11.115819] ? kasan_addr_to_slab+0x11/0xa0 [ 11.115839] ? kfree+0x274/0x3f0 [ 11.115860] kasan_report_invalid_free+0x10a/0x130 [ 11.115892] ? kfree+0x274/0x3f0 [ 11.115915] ? kfree+0x274/0x3f0 [ 11.115950] __kasan_kfree_large+0x86/0xd0 [ 11.115971] free_large_kmalloc+0x4b/0x110 [ 11.116002] kfree+0x274/0x3f0 [ 11.116027] kmalloc_large_invalid_free+0x120/0x2b0 [ 11.116049] ? __pfx_kmalloc_large_invalid_free+0x10/0x10 [ 11.116082] ? __schedule+0x10cc/0x2b60 [ 11.116104] ? __pfx_read_tsc+0x10/0x10 [ 11.116124] ? ktime_get_ts64+0x86/0x230 [ 11.116148] kunit_try_run_case+0x1a5/0x480 [ 11.116171] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.116193] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.116215] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.116237] ? __kthread_parkme+0x82/0x180 [ 11.116266] ? preempt_count_sub+0x50/0x80 [ 11.116289] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.116312] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.116344] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.116366] kthread+0x337/0x6f0 [ 11.116385] ? trace_preempt_on+0x20/0xc0 [ 11.116408] ? __pfx_kthread+0x10/0x10 [ 11.116428] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.116448] ? calculate_sigpending+0x7b/0xa0 [ 11.116471] ? __pfx_kthread+0x10/0x10 [ 11.116492] ret_from_fork+0x116/0x1d0 [ 11.116509] ? __pfx_kthread+0x10/0x10 [ 11.116529] ret_from_fork_asm+0x1a/0x30 [ 11.116577] </TASK> [ 11.116589] [ 11.124626] The buggy address belongs to the physical page: [ 11.124876] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102954 [ 11.125455] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 11.125877] flags: 0x200000000000040(head|node=0|zone=2) [ 11.126176] page_type: f8(unknown) [ 11.126331] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 11.126707] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 11.126985] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 11.127252] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 11.127699] head: 0200000000000002 ffffea00040a5501 00000000ffffffff 00000000ffffffff [ 11.128238] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 11.128498] page dumped because: kasan: bad access detected [ 11.128754] [ 11.128876] Memory state around the buggy address: [ 11.129182] ffff888102953f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.129667] ffff888102953f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.129948] >ffff888102954000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 11.130393] ^ [ 11.130688] ffff888102954080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 11.130963] ffff888102954100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 11.131279] ==================================================================