[  177.687862] ==================================================================
[  177.690442] BUG: KASAN: use-after-free in pagealloc_uaf+0xd4/0x1e8
[  177.693110] Read of size 1 at addr ffff0000c6040000 by task kunit_try_catch/130
[  177.694395] 
[  177.695732] CPU: 1 PID: 130 Comm: kunit_try_catch Tainted: G    B            N 6.6.76-rc1 #1
[  177.697837] Hardware name: linux,dummy-virt (DT)
[  177.699281] Call trace:
[  177.699880]  dump_backtrace+0x9c/0x128
[  177.701067]  show_stack+0x20/0x38
[  177.702261]  dump_stack_lvl+0x60/0xb0
[  177.703512]  print_report+0xf8/0x5d8
[  177.704764]  kasan_report+0xc8/0x118
[  177.706122]  __asan_load1+0x60/0x70
[  177.707088]  pagealloc_uaf+0xd4/0x1e8
[  177.708587]  kunit_try_run_case+0xf8/0x260
[  177.710240]  kunit_generic_run_threadfn_adapter+0x38/0x60
[  177.711800]  kthread+0x18c/0x1a8
[  177.713039]  ret_from_fork+0x10/0x20
[  177.714421] 
[  177.714889] The buggy address belongs to the physical page:
[  177.715522] page:00000000ba732e46 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106040
[  177.718478] flags: 0xbfffc0000000000(node=0|zone=2|lastcpupid=0xffff)
[  177.720467] page_type: 0xffffff7f(buddy)
[  177.721988] raw: 0bfffc0000000000 ffff0000ff5fca30 ffff0000ff5fca30 0000000000000000
[  177.723978] raw: 0000000000000000 0000000000000006 00000000ffffff7f 0000000000000000
[  177.725939] page dumped because: kasan: bad access detected
[  177.727462] 
[  177.728107] Memory state around the buggy address:
[  177.729504]  ffff0000c603ff00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[  177.731546]  ffff0000c603ff80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[  177.733753] >ffff0000c6040000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[  177.735465]                    ^
[  177.736566]  ffff0000c6040080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[  177.738397]  ffff0000c6040100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[  177.739931] ==================================================================