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dpt_i2o: Fix up copy*user

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Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Alan Cox 2009-10-27 15:35:35 +00:00 committed by Linus Torvalds
parent 0a53f1693c
commit ef7562b7f2
1 changed files with 4 additions and 0 deletions
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4
drivers/scsi/dpt_i2o.c
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@ -1918,6 +1918,10 @@ static int adpt_i2o_passthru(adpt_hba* pHba, u32 __user *arg)
} }
size = size>>16; size = size>>16;
size *= 4; size *= 4;
if (size > MAX_MESSAGE_SIZE) {
rcode = EINVAL;
goto cleanup;
}
/* Copy in the user's I2O command */ /* Copy in the user's I2O command */
if (copy_from_user (msg, user_msg, size)) { if (copy_from_user (msg, user_msg, size)) {
rcode = -EFAULT; rcode = -EFAULT;