linux-kernel - Re: [PATCH] ACPI/IORT: Fix memory leak in iort_rmr_alloc

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Message-ID: <bad20725-5b0d-4c60-9ccf-ef4fbaf112eb@web.de>
Date: Tue, 2 Sep 2025 14:23:56 +0200
From: Markus Elfring <Markus.Elfring@....de>
To: Miaoqian Lin <linmq006@...il.com>, linux-acpi@...r.kernel.org,
 bpf@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Cc: stable@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
 Hanjun Guo <guohanjun@...wei.com>, Jörg Rödel
 <jroedel@...e.de>, Len Brown <lenb@...nel.org>,
 Lorenzo Pieralisi <lpieralisi@...nel.org>,
 "Rafael J. Wysocki" <rafael@...nel.org>, Robin Murphy
 <robin.murphy@....com>, Shameer Kolothum <shameerkolothum@...il.com>,
 Sudeep Holla <sudeep.holla@....com>
Subject: Re: [PATCH] ACPI/IORT: Fix memory leak in iort_rmr_alloc_sids()

> If krealloc_array() fails in iort_rmr_alloc_sids(), the function returns
> NULL but does not free the original 'sids' allocation. …

See also:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/submitting-patches.rst?h=v6.17-rc4#n94

…
> ---
> This follows the same pattern as the fix in commit 06615967d488
> ("bpf, verifier: Fix memory leak in array reallocation for stack state").
…

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v6.17-rc4&id=42378a9ca55347102bbf86708776061d8fe3ece2

Regards,
Markus