[   18.171528] ==================================================================
[   18.171621] BUG: KFENCE: use-after-free write in __memset+0xc/0x20
[   18.171621] 
[   18.171702] Use-after-free write at 0x000000003bfa5165 (in kfence-#58):
[   18.172196]  __memset+0xc/0x20
[   18.172255]  kmalloc_uaf_memset+0x170/0x310
[   18.172295]  kunit_try_run_case+0x170/0x3f0
[   18.172345]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   18.172393]  kthread+0x328/0x630
[   18.172437]  ret_from_fork+0x10/0x20
[   18.172490] 
[   18.172667] kfence-#58: 0x000000003bfa5165-0x00000000fadb8304, size=33, cache=kmalloc-64
[   18.172667] 
[   18.172869] allocated by task 186 on cpu 1 at 18.169071s (0.003731s ago):
[   18.174687]  kmalloc_uaf_memset+0xb8/0x310
[   18.174800]  kunit_try_run_case+0x170/0x3f0
[   18.174896]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   18.175357]  kthread+0x328/0x630
[   18.175456]  ret_from_fork+0x10/0x20
[   18.175650] 
[   18.176584] freed by task 186 on cpu 1 at 18.169150s (0.006943s ago):
[   18.177931]  kmalloc_uaf_memset+0x11c/0x310
[   18.178007]  kunit_try_run_case+0x170/0x3f0
[   18.178111]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   18.178225]  kthread+0x328/0x630
[   18.178403]  ret_from_fork+0x10/0x20
[   18.178790] 
[   18.179537] CPU: 1 UID: 0 PID: 186 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-rc6-next-20250515 #1 PREEMPT 
[   18.179932] Tainted: [B]=BAD_PAGE, [N]=TEST
[   18.180268] Hardware name: linux,dummy-virt (DT)
[   18.180402] ==================================================================