Date
July 9, 2025, 2:07 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 16.761535] ================================================================== [ 16.761636] BUG: KASAN: invalid-free in kfree+0x270/0x3c8 [ 16.761700] Free of addr fff00000c77dc001 by task kunit_try_catch/150 [ 16.761746] [ 16.761779] CPU: 0 UID: 0 PID: 150 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 16.761862] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.761887] Hardware name: linux,dummy-virt (DT) [ 16.761918] Call trace: [ 16.761942] show_stack+0x20/0x38 (C) [ 16.761996] dump_stack_lvl+0x8c/0xd0 [ 16.762044] print_report+0x118/0x608 [ 16.762104] kasan_report_invalid_free+0xc0/0xe8 [ 16.762154] __kasan_kfree_large+0x5c/0xa8 [ 16.762201] free_large_kmalloc+0x64/0x190 [ 16.762246] kfree+0x270/0x3c8 [ 16.762288] kmalloc_large_invalid_free+0x108/0x270 [ 16.763013] kunit_try_run_case+0x170/0x3f0 [ 16.763228] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.763355] kthread+0x328/0x630 [ 16.763454] ret_from_fork+0x10/0x20 [ 16.763506] [ 16.763526] The buggy address belongs to the physical page: [ 16.763558] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1077dc [ 16.763637] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 16.763793] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 16.763899] page_type: f8(unknown) [ 16.763999] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 16.764136] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 16.764225] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 16.764333] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 16.764441] head: 0bfffe0000000002 ffffc1ffc31df701 00000000ffffffff 00000000ffffffff [ 16.764528] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 16.764642] page dumped because: kasan: bad access detected [ 16.764755] [ 16.764826] Memory state around the buggy address: [ 16.764893] fff00000c77dbf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.764936] fff00000c77dbf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.765297] >fff00000c77dc000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 16.765342] ^ [ 16.765644] fff00000c77dc080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 16.765768] fff00000c77dc100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 16.765918] ==================================================================
[ 12.276528] ================================================================== [ 12.277058] BUG: KASAN: invalid-free in kfree+0x274/0x3f0 [ 12.277321] Free of addr ffff888102ab0001 by task kunit_try_catch/167 [ 12.277615] [ 12.277736] CPU: 1 UID: 0 PID: 167 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 12.277782] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.277793] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.278115] Call Trace: [ 12.278132] <TASK> [ 12.278149] dump_stack_lvl+0x73/0xb0 [ 12.278183] print_report+0xd1/0x650 [ 12.278207] ? __virt_addr_valid+0x1db/0x2d0 [ 12.278301] ? kasan_addr_to_slab+0x11/0xa0 [ 12.278388] ? kfree+0x274/0x3f0 [ 12.278410] kasan_report_invalid_free+0x10a/0x130 [ 12.278435] ? kfree+0x274/0x3f0 [ 12.278457] ? kfree+0x274/0x3f0 [ 12.278477] __kasan_kfree_large+0x86/0xd0 [ 12.278498] free_large_kmalloc+0x4b/0x110 [ 12.278521] kfree+0x274/0x3f0 [ 12.278545] kmalloc_large_invalid_free+0x120/0x2b0 [ 12.278570] ? __pfx_kmalloc_large_invalid_free+0x10/0x10 [ 12.278604] ? __schedule+0x10cc/0x2b60 [ 12.278626] ? __pfx_read_tsc+0x10/0x10 [ 12.278648] ? ktime_get_ts64+0x86/0x230 [ 12.278674] kunit_try_run_case+0x1a5/0x480 [ 12.278700] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.278723] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.278747] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.278771] ? __kthread_parkme+0x82/0x180 [ 12.278793] ? preempt_count_sub+0x50/0x80 [ 12.278839] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.278863] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.278888] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.278913] kthread+0x337/0x6f0 [ 12.278932] ? trace_preempt_on+0x20/0xc0 [ 12.278957] ? __pfx_kthread+0x10/0x10 [ 12.278977] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.278998] ? calculate_sigpending+0x7b/0xa0 [ 12.279022] ? __pfx_kthread+0x10/0x10 [ 12.279043] ret_from_fork+0x116/0x1d0 [ 12.279061] ? __pfx_kthread+0x10/0x10 [ 12.279081] ret_from_fork_asm+0x1a/0x30 [ 12.279113] </TASK> [ 12.279123] [ 12.290206] The buggy address belongs to the physical page: [ 12.290618] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102ab0 [ 12.291166] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 12.291556] flags: 0x200000000000040(head|node=0|zone=2) [ 12.291924] page_type: f8(unknown) [ 12.292063] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 12.292623] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 12.293020] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 12.293540] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 12.294018] head: 0200000000000002 ffffea00040aac01 00000000ffffffff 00000000ffffffff [ 12.294304] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 12.294783] page dumped because: kasan: bad access detected [ 12.295185] [ 12.295275] Memory state around the buggy address: [ 12.295669] ffff888102aaff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.296171] ffff888102aaff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.296538] >ffff888102ab0000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.297018] ^ [ 12.297178] ffff888102ab0080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.297627] ffff888102ab0100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.297978] ==================================================================