From: Chao Yu <chao@kernel.org>
To: zangyangyang1 <zangyangyang1@xiaomi.com>
Cc: jaegeuk@kernel.org, linux-f2fs-devel@lists.sourceforge.net
Subject: Re: [f2fs-dev] [PATCH v2] f2fs_io: Fix integer multiplication overflow error in fiemap
Date: Wed, 24 May 2023 11:02:48 +0800 [thread overview]
Message-ID: <4cbd654a-cbed-2acc-8fe5-898e534eb6fe@kernel.org> (raw)
In-Reply-To: <20230523122720.1628122-1-zangyangyang1@xiaomi.com>
On 2023/5/23 20:27, zangyangyang1 wrote:
> When using fiemap to obtain the block address of files
> larger than 2GB ((2147483647+1) bytes), an integer
> multiplication overflow error will occur.
> This issue is caused by the following code:
> start = atoi(argv[1]) * F2FS_BLKSIZE;
> length = atoi(argv[2]) * F2FS_BLKSIZE;
>
> Signed-off-by: zangyangyang1 <zangyangyang1@xiaomi.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Thanks,
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next prev parent reply other threads:[~2023-05-24 3:03 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-23 7:24 [f2fs-dev] [PATCH] f2fs_io: Fix integer multiplication overflow error in fiemap zangyangyang1 via Linux-f2fs-devel
2023-05-23 9:59 ` Chao Yu
2023-05-23 12:27 ` [f2fs-dev] [PATCH v2] " zangyangyang1 via Linux-f2fs-devel
2023-05-24 3:02 ` Chao Yu [this message]
2023-11-09 13:00 ` [f2fs-dev] [PATCH V2] libf2fs: Fix using uninitialized variables error in get_device_info() zangyangyang1 via Linux-f2fs-devel
2023-11-09 15:40 ` zangyangyang1 via Linux-f2fs-devel
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