linux-kernel - Re: [PATCH v1] erofs: fix possible memory leak in z_erofs_gbuf

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Message-ID: <aecc0724-027e-4405-887c-1a0701517e81@kernel.org>
Date: Wed, 26 Jun 2024 16:26:25 +0800
From: Chao Yu <chao@...nel.org>
To: Sandeep Dhavale <dhavale@...gle.com>, linux-erofs@...ts.ozlabs.org,
 Gao Xiang <xiang@...nel.org>, Yue Hu <huyue2@...lpad.com>,
 Jeffle Xu <jefflexu@...ux.alibaba.com>, Chunhai Guo <guochunhai@...o.com>
Cc: hsiangkao@...ux.alibaba.com, kernel-team@...roid.com,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1] erofs: fix possible memory leak in z_erofs_gbuf_exit()

On 2024/6/25 6:02, Sandeep Dhavale wrote:
> Because we incorrectly reused of variable `i` in `z_erofs_gbuf_exit()`
> for inner loop, we may exit early from outer loop resulting in memory
> leak. Fix this by using separate variable for iterating through inner loop.
> 
> Fixes: f36f3010f676 ("erofs: rename per-CPU buffers to global buffer pool and make it configurable")
> 
> Signed-off-by: Sandeep Dhavale <dhavale@...gle.com>

Reviewed-by: Chao Yu <chao@...nel.org>

Thanks,