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authorJean Delvare <khali@linux-fr.org>2008-08-17 21:06:59 +0200
committerJesse Barnes <jbarnes@virtuousgeek.org>2008-10-20 10:48:35 -0700
commitb41d6cf38e27a940d998d989526a9748de1bf028 (patch)
treea2ae90005e000d4f9d16637171ff11dd31a4917a /drivers/i2c
parentedbc25caaa492a82e19baa915f1f6b0a0db6554d (diff)
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PCI: Check dynids driver_data value for validity
Only accept dynids whose driver_data value matches one of the driver's pci_driver_id entries. This prevents the user from accidentally passing values the drivers do not expect. Cc: Milton Miller <miltonm@bga.com> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'drivers/i2c')
-rw-r--r--drivers/i2c/busses/i2c-amd756.c4
-rw-r--r--drivers/i2c/busses/i2c-viapro.c4
2 files changed, 0 insertions, 8 deletions
diff --git a/drivers/i2c/busses/i2c-amd756.c b/drivers/i2c/busses/i2c-amd756.c
index a3542b053c8..424dad6f18d 100644
--- a/drivers/i2c/busses/i2c-amd756.c
+++ b/drivers/i2c/busses/i2c-amd756.c
@@ -332,10 +332,6 @@ static int __devinit amd756_probe(struct pci_dev *pdev,
int error;
u8 temp;
- /* driver_data might come from user-space, so check it */
- if (id->driver_data >= ARRAY_SIZE(chipname))
- return -EINVAL;
-
if (amd756_ioport) {
dev_err(&pdev->dev, "Only one device supported "
"(you have a strange motherboard, btw)\n");
diff --git a/drivers/i2c/busses/i2c-viapro.c b/drivers/i2c/busses/i2c-viapro.c
index 2324780484c..9f194d9efd9 100644
--- a/drivers/i2c/busses/i2c-viapro.c
+++ b/drivers/i2c/busses/i2c-viapro.c
@@ -332,10 +332,6 @@ static int __devinit vt596_probe(struct pci_dev *pdev,
unsigned char temp;
int error = -ENODEV;
- /* driver_data might come from user-space, so check it */
- if (id->driver_data & 1 || id->driver_data > 0xff)
- return -EINVAL;
-
/* Determine the address of the SMBus areas */
if (force_addr) {
vt596_smba = force_addr & 0xfff0;