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| author | Michael Walle <mwalle@kernel.org> | 2024-04-03 16:31:55 +0200 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2024-04-11 15:52:19 -0600 |
| commit | 0b0652737381e839a2d55c892bf9e4f1d86db21b (patch) | |
| tree | 4291cc5ec45f040c88eb78fe74ab60c0b1b71273 /drivers/net | |
| parent | 3206b77c844c7f2d85e9154982f6ef9d72adaab6 (diff) | |
| download | u-boot-0b0652737381e839a2d55c892bf9e4f1d86db21b.zip u-boot-0b0652737381e839a2d55c892bf9e4f1d86db21b.tar.gz u-boot-0b0652737381e839a2d55c892bf9e4f1d86db21b.tar.bz2 | |
net: ti: am65-cpsw: Fix buffer overflow
The device name is a concatenation of the device node name of the cpsw
device and of the device node name of the port. In my case that is
ethernet@8000000
port@1
First the buffer is really too small, but more importantly, there is no
boundary check. Use snprintf() and increase the buffer size.
Fixes: 38922b1f4acc ("net: ti: am65-cpsw: Add support for multi port independent MAC mode")
Signed-off-by: Michael Walle <mwalle@kernel.org>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ti/am65-cpsw-nuss.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/ti/am65-cpsw-nuss.c b/drivers/net/ti/am65-cpsw-nuss.c index d68ed67..b151e25 100644 --- a/drivers/net/ti/am65-cpsw-nuss.c +++ b/drivers/net/ti/am65-cpsw-nuss.c @@ -664,7 +664,7 @@ static int am65_cpsw_port_probe(struct udevice *dev) struct am65_cpsw_priv *priv = dev_get_priv(dev); struct eth_pdata *pdata = dev_get_plat(dev); struct am65_cpsw_common *cpsw_common; - char portname[15]; + char portname[32]; int ret; priv->dev = dev; @@ -672,7 +672,7 @@ static int am65_cpsw_port_probe(struct udevice *dev) cpsw_common = dev_get_priv(dev->parent); priv->cpsw_common = cpsw_common; - sprintf(portname, "%s%s", dev->parent->name, dev->name); + snprintf(portname, sizeof(portname), "%s%s", dev->parent->name, dev->name); device_set_name(dev, portname); ret = am65_cpsw_ofdata_parse_phy(dev); |