forked from luck/tmp_suning_uos_patched
b43: debugfs SHM read buffer overrun fix
Fix possible buffer overrun. Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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@ -128,7 +128,7 @@ static ssize_t shm_read_file(struct b43_wldev *dev,
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__le16 *le16buf = (__le16 *)buf;
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for (i = 0; i < 0x1000; i++) {
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if (bufsize <= 0)
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if (bufsize < sizeof(tmp))
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break;
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tmp = b43_shm_read16(dev, B43_SHM_SHARED, 2 * i);
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le16buf[i] = cpu_to_le16(tmp);
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