Re: "kernel BUG in update_and_free_pages_bulk" in Linux Kernel v6.12-rc4

Muchun Song
2025-01-15T03:45:44Z

> On Jan 15, 2025, at 10:17, cheung wall <zzqq0103.hey@gmail.com> wrote:
>
> Hello,
>
> I am writing to report a potential vulnerability identified in the
> Linux Kernel version v6.12-rc4. This vulnerability was discovered
> while i was testing the kernel.

Thanks for your report. I'll fix it later.

Thanks,
Muchun

>
> Linux Kernel Repository Git Commit:
> 42f7652d3eb527d03665b09edac47f85fb600924 (tag: v6.12-rc4)
>
> Bug Location: update_and_free_pages_bulk+0x657/0x810 mm/hugetlb.c:1860
>
> Bug report: https://pastebin.com/q8J3z5Gq
>
> Entire Log: https://pastebin.com/AQF101kq
>
> Thank you for your time and attention.
>
> Best regards
>
> Wall