ext4: fix potential integer overflow
[ Upstream commit 46901760b4
]
Since sizeof(ext_new_group_data) > sizeof(ext_new_flex_group_data),
integer overflow could be happened.
Therefore, need to fix integer overflow sanitization.
Cc: stable@vger.kernel.org
Signed-off-by: Insu Yun <wuninsu@gmail.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
wifi-calibration
parent
3a68deb667
commit
9d7679794e
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@ -198,7 +198,7 @@ static struct ext4_new_flex_group_data *alloc_flex_gd(unsigned long flexbg_size)
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if (flex_gd == NULL)
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goto out3;
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if (flexbg_size >= UINT_MAX / sizeof(struct ext4_new_flex_group_data))
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if (flexbg_size >= UINT_MAX / sizeof(struct ext4_new_group_data))
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goto out2;
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flex_gd->count = flexbg_size;
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