Re: [PATCH v2] misc: Fix out-of-bounds array write in tdelete (bug 34506)

Adhemerval Zanella Netto <[email protected]>
Newsgroups gmane.comp.lib.glibc.alpha
Organization Linaro
Message-ID <[email protected]>

On 14/08/26 08:44, Florian Weimer wrote:
> * Florian Weimer:
> 
>> * Adhemerval Zanella Netto:
>>
>>> On 14/08/26 05:19, Florian Weimer wrote:
>>>> Allocate the maximum array sizes directly, instead of resizing
>>>> the arrays as needed.  This eliminates alloca usage from the
>>>> function, and fixes the out-of-bounds accesses.  The asserts
>>>> guard against the bug coming back if the balancing of the tree
>>>> turns out not to work correctly.
>>>
>>> LGTM, thanks.
>>>
>>> Reviewed-by: Adhemerval Zanella  <[email protected]>
>>
>> Thanks.  Should we treat this as a security vulnerability?
> 
> Never mind, I forgot that it's CVE-2026-19542.
Yeah, I was about to pointing this. We will need the advisory patch, but I think
there is no urgency now.
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