GNU bug report logs - #79336
[PATCH] df: fix potential null pointer dereference

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From: Paul Eggert <eggert <at> cs.ucla.edu>
To: yubiao hu <huyubiaox <at> gmail.com>
Cc: 79336 <at> debbugs.gnu.org
Subject: bug#79336: [PATCH] df: fix potential null pointer dereference
Date: Sat, 30 Aug 2025 10:41:24 -0700

[Message part 1 (text/plain, inline)]

On 2025-08-28 18:45, yubiao hu wrote:
> * src/df.c (get_dev): Fix potential null pointer dereference
> - Avoid dereferencing stat_file when both device and
>   mount_point are NULL
> - Handle allocation failure for cell when mount_point
>   is NULL

Why is this patch needed? Can you give an example df invocation in which 
mount_point is null there? As far as I can see, that cannot happen.

Did your bug report come from static analysis? If so, which static 
analyzer did you use and how did you use it? Does the attached patch 
pacify your static analyzer?

[0001-df-pacify-static-analysis.patch (text/x-patch, attachment)]

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