Date
July 18, 2025, 1:09 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 31.315069] ================================================================== [ 31.315259] BUG: KASAN: invalid-free in kfree+0x270/0x3c8 [ 31.315357] Free of addr fff00000c3fe8001 by task kunit_try_catch/181 [ 31.315692] [ 31.315737] CPU: 0 UID: 0 PID: 181 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250718 #1 PREEMPT [ 31.315847] Tainted: [B]=BAD_PAGE, [N]=TEST [ 31.315891] Hardware name: linux,dummy-virt (DT) [ 31.315956] Call trace: [ 31.316000] show_stack+0x20/0x38 (C) [ 31.316052] dump_stack_lvl+0x8c/0xd0 [ 31.316218] print_report+0x118/0x5e8 [ 31.316428] kasan_report_invalid_free+0xc0/0xe8 [ 31.316517] __kasan_kfree_large+0x5c/0xa8 [ 31.316677] free_large_kmalloc+0x68/0x150 [ 31.316775] kfree+0x270/0x3c8 [ 31.316912] kmalloc_large_invalid_free+0x108/0x270 [ 31.317060] kunit_try_run_case+0x170/0x3f0 [ 31.317174] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.317275] kthread+0x328/0x630 [ 31.317318] ret_from_fork+0x10/0x20 [ 31.317529] [ 31.317557] The buggy address belongs to the physical page: [ 31.317588] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103fe8 [ 31.317653] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 31.317724] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 31.318000] page_type: f8(unknown) [ 31.318146] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 31.318280] raw: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000 [ 31.318393] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 31.318480] head: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000 [ 31.318580] head: 0bfffe0000000002 ffffc1ffc30ffa01 00000000ffffffff 00000000ffffffff [ 31.318633] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 31.318682] page dumped because: kasan: bad access detected [ 31.318721] [ 31.318746] Memory state around the buggy address: [ 31.318783] fff00000c3fe7f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.318830] fff00000c3fe7f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.318871] >fff00000c3fe8000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 31.318916] ^ [ 31.318953] fff00000c3fe8080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 31.319003] fff00000c3fe8100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 31.319266] ==================================================================
[ 24.288633] ================================================================== [ 24.290124] BUG: KASAN: invalid-free in kfree+0x274/0x3f0 [ 24.290364] Free of addr ffff888106210001 by task kunit_try_catch/198 [ 24.290558] [ 24.290651] CPU: 0 UID: 0 PID: 198 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250718 #1 PREEMPT(voluntary) [ 24.290702] Tainted: [B]=BAD_PAGE, [N]=TEST [ 24.290715] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 24.290739] Call Trace: [ 24.290753] <TASK> [ 24.290771] dump_stack_lvl+0x73/0xb0 [ 24.291131] print_report+0xd1/0x640 [ 24.291157] ? __virt_addr_valid+0x1db/0x2d0 [ 24.291430] ? kasan_addr_to_slab+0x11/0xa0 [ 24.291457] ? kfree+0x274/0x3f0 [ 24.291479] kasan_report_invalid_free+0x10a/0x130 [ 24.291504] ? kfree+0x274/0x3f0 [ 24.291527] ? kfree+0x274/0x3f0 [ 24.291547] __kasan_kfree_large+0x86/0xd0 [ 24.291567] free_large_kmalloc+0x52/0x110 [ 24.291589] kfree+0x274/0x3f0 [ 24.291614] kmalloc_large_invalid_free+0x120/0x2b0 [ 24.291636] ? __pfx_kmalloc_large_invalid_free+0x10/0x10 [ 24.291658] ? __schedule+0x10da/0x2b60 [ 24.291684] ? __pfx_read_tsc+0x10/0x10 [ 24.291707] ? ktime_get_ts64+0x86/0x230 [ 24.291733] kunit_try_run_case+0x1a5/0x480 [ 24.291759] ? __pfx_kunit_try_run_case+0x10/0x10 [ 24.291780] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 24.291897] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 24.291929] ? __kthread_parkme+0x82/0x180 [ 24.291950] ? preempt_count_sub+0x50/0x80 [ 24.291973] ? __pfx_kunit_try_run_case+0x10/0x10 [ 24.291996] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.292019] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 24.292041] kthread+0x337/0x6f0 [ 24.292061] ? trace_preempt_on+0x20/0xc0 [ 24.292087] ? __pfx_kthread+0x10/0x10 [ 24.292108] ? _raw_spin_unlock_irq+0x47/0x80 [ 24.292138] ? calculate_sigpending+0x7b/0xa0 [ 24.292161] ? __pfx_kthread+0x10/0x10 [ 24.292197] ret_from_fork+0x116/0x1d0 [ 24.292216] ? __pfx_kthread+0x10/0x10 [ 24.292236] ret_from_fork_asm+0x1a/0x30 [ 24.292267] </TASK> [ 24.292279] [ 24.307539] The buggy address belongs to the physical page: [ 24.308024] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106210 [ 24.308386] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 24.309174] flags: 0x200000000000040(head|node=0|zone=2) [ 24.309728] page_type: f8(unknown) [ 24.310117] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 24.310875] raw: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000 [ 24.311639] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 24.311940] head: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000 [ 24.312489] head: 0200000000000002 ffffea0004188401 00000000ffffffff 00000000ffffffff [ 24.313064] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 24.313847] page dumped because: kasan: bad access detected [ 24.314057] [ 24.314119] Memory state around the buggy address: [ 24.314275] ffff88810620ff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.314480] ffff88810620ff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.314688] >ffff888106210000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 24.315058] ^ [ 24.315365] ffff888106210080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 24.315567] ffff888106210100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 24.315830] ==================================================================