* "kernel BUG in update_and_free_pages_bulk" in Linux Kernel v6.12-rc4
@ 2025-01-15 2:17 cheung wall
2025-01-15 3:45 ` Muchun Song
0 siblings, 1 reply; 4+ messages in thread
From: cheung wall @ 2025-01-15 2:17 UTC (permalink / raw)
To: Muchun Song, Andrew Morton; +Cc: linux-mm, linux-kernel
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.
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
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: "kernel BUG in update_and_free_pages_bulk" in Linux Kernel v6.12-rc4
2025-01-15 2:17 "kernel BUG in update_and_free_pages_bulk" in Linux Kernel v6.12-rc4 cheung wall
@ 2025-01-15 3:45 ` Muchun Song
2025-01-15 4:42 ` Yu Zhao
0 siblings, 1 reply; 4+ messages in thread
From: Muchun Song @ 2025-01-15 3:45 UTC (permalink / raw)
To: cheung wall; +Cc: Andrew Morton, linux-mm, linux-kernel
> 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
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: "kernel BUG in update_and_free_pages_bulk" in Linux Kernel v6.12-rc4
2025-01-15 3:45 ` Muchun Song
@ 2025-01-15 4:42 ` Yu Zhao
2025-01-15 9:09 ` Muchun Song
0 siblings, 1 reply; 4+ messages in thread
From: Yu Zhao @ 2025-01-15 4:42 UTC (permalink / raw)
To: Muchun Song; +Cc: cheung wall, Andrew Morton, linux-mm, linux-kernel
On Tue, Jan 14, 2025 at 8:45 PM Muchun Song <muchun.song@linux.dev> wrote:
>
>
>
> > 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
This was fixed by
commit 9d08ec41a064 ("mm: allow set/clear page_type again")
and it went into v6.12-rc6.
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: "kernel BUG in update_and_free_pages_bulk" in Linux Kernel v6.12-rc4
2025-01-15 4:42 ` Yu Zhao
@ 2025-01-15 9:09 ` Muchun Song
0 siblings, 0 replies; 4+ messages in thread
From: Muchun Song @ 2025-01-15 9:09 UTC (permalink / raw)
To: Yu Zhao; +Cc: cheung wall, Andrew Morton, linux-mm, linux-kernel
> On Jan 15, 2025, at 12:42, Yu Zhao <yuzhao@google.com> wrote:
>
> On Tue, Jan 14, 2025 at 8:45 PM Muchun Song <muchun.song@linux.dev> wrote:
>>
>>
>>
>>> 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
>
> This was fixed by
> commit 9d08ec41a064 ("mm: allow set/clear page_type again")
Thanks for your reminder. It's really helpful.
Thanks,
Muchun
> and it went into v6.12-rc6.
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2025-01-15 9:10 UTC | newest]
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2025-01-15 2:17 "kernel BUG in update_and_free_pages_bulk" in Linux Kernel v6.12-rc4 cheung wall
2025-01-15 3:45 ` Muchun Song
2025-01-15 4:42 ` Yu Zhao
2025-01-15 9:09 ` Muchun Song
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