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i2c-ddc: fix oob read

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Suggested-by: Michael Hanselmann <public@hansmi.ch>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Michael Hanselmann <public@hansmi.ch>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20190108102301.1957-1-kraxel@redhat.com
This commit is contained in:
Gerd Hoffmann 2019-01-08 11:23:01 +01:00
parent c2077ec2d9
commit b05b267840
1 changed files with 1 additions and 1 deletions
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2
hw/i2c/i2c-ddc.c
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@ -56,7 +56,7 @@ static int i2c_ddc_rx(I2CSlave *i2c)
I2CDDCState *s = I2CDDC(i2c); I2CDDCState *s = I2CDDC(i2c);
int value; int value;
value = s->edid_blob[s->reg]; value = s->edid_blob[s->reg % sizeof(s->edid_blob)];
s->reg++; s->reg++;
return value; return value;
} }