RE: [PATCH 5.4 2/5] cifs: Get rid of kstrdup_const()'d paths
From: Paulo Alcantara
Date: Sun Jun 25 2023 - 12:59:05 EST
David Laight <David.Laight@xxxxxxxxxx> writes:
> From: Rishabh Bhatnagar
>> Sent: 23 June 2023 22:34
>> From: "Paulo Alcantara (SUSE)" <pc@xxxxxx>
>>
>> commit 199c6bdfb04b71d88a7765e08285885fbca60df4 upstream.
>>
>> The DFS cache API is mostly used with heap allocated strings.
>>
> ...
>> - ce->path = kstrdup_const(path, GFP_KERNEL);
>> + ce->path = kstrndup(path, strlen(path), GFP_KERNEL);
>
> That is entirely brain-dead.
Yep. It's got fixed up later by
8d7672235533 ("cifs: don't cargo-cult strndup()")