Date
July 24, 2025, 4:41 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 32.259409] ================================================================== [ 32.259873] BUG: KASAN: invalid-free in kfree+0x270/0x3c8 [ 32.260289] Free of addr fff00000c99a0001 by task kunit_try_catch/181 [ 32.260386] [ 32.260431] CPU: 0 UID: 0 PID: 181 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7-next-20250724 #1 PREEMPT [ 32.260525] Tainted: [B]=BAD_PAGE, [N]=TEST [ 32.260553] Hardware name: linux,dummy-virt (DT) [ 32.260822] Call trace: [ 32.260966] show_stack+0x20/0x38 (C) [ 32.261031] dump_stack_lvl+0x8c/0xd0 [ 32.261079] print_report+0x118/0x5e8 [ 32.261293] kasan_report_invalid_free+0xc0/0xe8 [ 32.261563] __kasan_kfree_large+0x5c/0xa8 [ 32.261818] free_large_kmalloc+0x68/0x150 [ 32.262081] kfree+0x270/0x3c8 [ 32.262150] kmalloc_large_invalid_free+0x108/0x270 [ 32.262200] kunit_try_run_case+0x170/0x3f0 [ 32.262588] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 32.262732] kthread+0x328/0x630 [ 32.262795] ret_from_fork+0x10/0x20 [ 32.262922] [ 32.263013] The buggy address belongs to the physical page: [ 32.263453] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1099a0 [ 32.263542] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 32.263812] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 32.264040] page_type: f8(unknown) [ 32.264104] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 32.264286] raw: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000 [ 32.264362] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 32.264489] head: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000 [ 32.264584] head: 0bfffe0000000002 ffffc1ffc3266801 00000000ffffffff 00000000ffffffff [ 32.264853] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 32.265216] page dumped because: kasan: bad access detected [ 32.265282] [ 32.265397] Memory state around the buggy address: [ 32.265434] fff00000c999ff00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 32.265788] fff00000c999ff80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 32.266050] >fff00000c99a0000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 32.266226] ^ [ 32.266333] fff00000c99a0080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 32.266388] fff00000c99a0100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 32.266772] ==================================================================
[ 26.371739] ================================================================== [ 26.372497] BUG: KASAN: invalid-free in kfree+0x274/0x3f0 [ 26.372790] Free of addr ffff888104970001 by task kunit_try_catch/198 [ 26.373075] [ 26.373190] CPU: 0 UID: 0 PID: 198 Comm: kunit_try_catch Tainted: G B W N 6.16.0-rc7-next-20250724 #1 PREEMPT(voluntary) [ 26.373267] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST [ 26.373280] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 26.373303] Call Trace: [ 26.373316] <TASK> [ 26.373335] dump_stack_lvl+0x73/0xb0 [ 26.373365] print_report+0xd1/0x640 [ 26.373388] ? __virt_addr_valid+0x1db/0x2d0 [ 26.373413] ? kasan_addr_to_slab+0x11/0xa0 [ 26.373445] ? kfree+0x274/0x3f0 [ 26.373469] kasan_report_invalid_free+0x10a/0x130 [ 26.373506] ? kfree+0x274/0x3f0 [ 26.373530] ? kfree+0x274/0x3f0 [ 26.373549] __kasan_kfree_large+0x86/0xd0 [ 26.373570] free_large_kmalloc+0x52/0x110 [ 26.373605] kfree+0x274/0x3f0 [ 26.373630] kmalloc_large_invalid_free+0x120/0x2b0 [ 26.373661] ? __pfx_kmalloc_large_invalid_free+0x10/0x10 [ 26.373683] ? __schedule+0x10da/0x2b60 [ 26.373707] ? __pfx_read_tsc+0x10/0x10 [ 26.373742] ? ktime_get_ts64+0x86/0x230 [ 26.373766] kunit_try_run_case+0x1a5/0x480 [ 26.373792] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.373813] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 26.373876] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 26.373902] ? __kthread_parkme+0x82/0x180 [ 26.373923] ? preempt_count_sub+0x50/0x80 [ 26.373952] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.374028] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.374051] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 26.374074] kthread+0x337/0x6f0 [ 26.374094] ? trace_preempt_on+0x20/0xc0 [ 26.374118] ? __pfx_kthread+0x10/0x10 [ 26.374138] ? _raw_spin_unlock_irq+0x47/0x80 [ 26.374160] ? calculate_sigpending+0x7b/0xa0 [ 26.374183] ? __pfx_kthread+0x10/0x10 [ 26.374204] ret_from_fork+0x116/0x1d0 [ 26.374233] ? __pfx_kthread+0x10/0x10 [ 26.374253] ret_from_fork_asm+0x1a/0x30 [ 26.374285] </TASK> [ 26.374306] [ 26.381974] The buggy address belongs to the physical page: [ 26.382313] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x104970 [ 26.382792] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 26.383320] flags: 0x200000000000040(head|node=0|zone=2) [ 26.383622] page_type: f8(unknown) [ 26.383857] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 26.384493] raw: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000 [ 26.384777] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 26.385354] head: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000 [ 26.385713] head: 0200000000000002 ffffea0004125c01 00000000ffffffff 00000000ffffffff [ 26.386267] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 26.386607] page dumped because: kasan: bad access detected [ 26.386844] [ 26.387002] Memory state around the buggy address: [ 26.387257] ffff88810496ff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.387586] ffff88810496ff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.388011] >ffff888104970000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 26.388325] ^ [ 26.388459] ffff888104970080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 26.388891] ffff888104970100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 26.389436] ==================================================================