linux-kernel - Re: [PATCH v3] drm/amdkfd: fix a memory leak in device_queue_manager

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <12cd71cb-4139-413e-918c-6245d5d4f10a@web.de>
Date: Fri, 9 Jan 2026 17:23:54 +0100
From: Markus Elfring <Markus.Elfring@....de>
To: Haoxiang Li <lihaoxiang@...c.iscas.ac.cn>, amd-gfx@...ts.freedesktop.org,
 dri-devel@...ts.freedesktop.org, Alex Deucher <alexander.deucher@....com>,
 Christian König <christian.koenig@....com>,
 David Airlie <airlied@...il.com>, Felix Kühling
 <felix.kuehling@....com>, Oak Zeng <ozeng@....com>,
 Simona Vetter <simona@...ll.ch>
Cc: stable@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3] drm/amdkfd: fix a memory leak in
 device_queue_manager_init()

…
> Move deallocate_hiq_sdma_mqd() up to ensure proper function
> visibility at the point of use.
…
> +++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
> @@ -2919,6 +2919,14 @@ static int allocate_hiq_sdma_mqd(struct device_queue_manager *dqm)
>  	return retval;
>  }
>  
> +static void deallocate_hiq_sdma_mqd(struct kfd_node *dev,
> +				    struct kfd_mem_obj *mqd)
> +{
> +	WARN(!mqd, "No hiq sdma mqd trunk to free");

Can this macro call be omitted here?
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/coding-style.rst?h=v6.19-rc4#n1242


> +
> +	amdgpu_amdkfd_free_gtt_mem(dev->adev, &mqd->gtt_mem);
> +}
…

Regards,
Markus