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Message-Id: <20241120053055.225195-1-00107082@163.com>
Date: Wed, 20 Nov 2024 13:30:55 +0800
From: David Wang <00107082@....com>
To: linus.walleij@...aro.org,
brgl@...ev.pl,
tglx@...utronix.de
Cc: linux-kernel@...r.kernel.org,
linux-gpio@...r.kernel.org,
geert@...ux-m68k.org,
David Wang <00107082@....com>
Subject: [PATCH] Fix a potential abuse of seq_printf() format string in drivers
Using device name as format string of seq_printf() is proned to
"Format string attack", opens possibility for exploitation.
Seq_puts() is safer and more efficient.
Signed-off-by: David Wang <00107082@....com>
---
drivers/gpio/gpio-aspeed-sgpio.c | 2 +-
drivers/gpio/gpio-aspeed.c | 2 +-
drivers/gpio/gpio-ep93xx.c | 2 +-
drivers/gpio/gpio-hlwd.c | 2 +-
drivers/gpio/gpio-mlxbf2.c | 2 +-
drivers/gpio/gpio-omap.c | 2 +-
drivers/gpio/gpio-pca953x.c | 2 +-
drivers/gpio/gpio-pl061.c | 2 +-
drivers/gpio/gpio-tegra.c | 2 +-
drivers/gpio/gpio-tegra186.c | 2 +-
drivers/gpio/gpio-tqmx86.c | 2 +-
drivers/gpio/gpio-visconti.c | 2 +-
drivers/gpio/gpio-xgs-iproc.c | 2 +-
drivers/irqchip/irq-gic.c | 2 +-
drivers/irqchip/irq-mvebu-pic.c | 2 +-
drivers/irqchip/irq-versatile-fpga.c | 2 +-
drivers/pinctrl/bcm/pinctrl-iproc-gpio.c | 2 +-
drivers/pinctrl/mvebu/pinctrl-armada-37xx.c | 2 +-
drivers/pinctrl/pinctrl-mcp23s08.c | 2 +-
drivers/pinctrl/pinctrl-stmfx.c | 2 +-
drivers/pinctrl/pinctrl-sx150x.c | 2 +-
drivers/pinctrl/renesas/pinctrl-rzg2l.c | 2 +-
22 files changed, 22 insertions(+), 22 deletions(-)
diff --git a/drivers/gpio/gpio-aspeed-sgpio.c b/drivers/gpio/gpio-aspeed-sgpio.c
index 72755fee6478..34eb26298e32 100644
--- a/drivers/gpio/gpio-aspeed-sgpio.c
+++ b/drivers/gpio/gpio-aspeed-sgpio.c
@@ -420,7 +420,7 @@ static void aspeed_sgpio_irq_print_chip(struct irq_data *d, struct seq_file *p)
int offset;
irqd_to_aspeed_sgpio_data(d, &gpio, &bank, &bit, &offset);
- seq_printf(p, dev_name(gpio->dev));
+ seq_puts(p, dev_name(gpio->dev));
}
static const struct irq_chip aspeed_sgpio_irq_chip = {
diff --git a/drivers/gpio/gpio-aspeed.c b/drivers/gpio/gpio-aspeed.c
index ea40ad43a79b..7f3292d9f016 100644
--- a/drivers/gpio/gpio-aspeed.c
+++ b/drivers/gpio/gpio-aspeed.c
@@ -1102,7 +1102,7 @@ static void aspeed_gpio_irq_print_chip(struct irq_data *d, struct seq_file *p)
if (rc)
return;
- seq_printf(p, dev_name(gpio->dev));
+ seq_puts(p, dev_name(gpio->dev));
}
static const struct irq_chip aspeed_gpio_irq_chip = {
diff --git a/drivers/gpio/gpio-ep93xx.c b/drivers/gpio/gpio-ep93xx.c
index ab798c848215..58d2464c07bc 100644
--- a/drivers/gpio/gpio-ep93xx.c
+++ b/drivers/gpio/gpio-ep93xx.c
@@ -249,7 +249,7 @@ static void ep93xx_irq_print_chip(struct irq_data *data, struct seq_file *p)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(data);
- seq_printf(p, dev_name(gc->parent));
+ seq_puts(p, dev_name(gc->parent));
}
static const struct irq_chip gpio_eic_irq_chip = {
diff --git a/drivers/gpio/gpio-hlwd.c b/drivers/gpio/gpio-hlwd.c
index 1bcfc1835dae..0580f6712bea 100644
--- a/drivers/gpio/gpio-hlwd.c
+++ b/drivers/gpio/gpio-hlwd.c
@@ -210,7 +210,7 @@ static void hlwd_gpio_irq_print_chip(struct irq_data *data, struct seq_file *p)
struct hlwd_gpio *hlwd =
gpiochip_get_data(irq_data_get_irq_chip_data(data));
- seq_printf(p, dev_name(hlwd->dev));
+ seq_puts(p, dev_name(hlwd->dev));
}
static const struct irq_chip hlwd_gpio_irq_chip = {
diff --git a/drivers/gpio/gpio-mlxbf2.c b/drivers/gpio/gpio-mlxbf2.c
index 6abe01bc39c3..6f3dda6b635f 100644
--- a/drivers/gpio/gpio-mlxbf2.c
+++ b/drivers/gpio/gpio-mlxbf2.c
@@ -331,7 +331,7 @@ static void mlxbf2_gpio_irq_print_chip(struct irq_data *irqd,
struct gpio_chip *gc = irq_data_get_irq_chip_data(irqd);
struct mlxbf2_gpio_context *gs = gpiochip_get_data(gc);
- seq_printf(p, dev_name(gs->dev));
+ seq_puts(p, dev_name(gs->dev));
}
static const struct irq_chip mlxbf2_gpio_irq_chip = {
diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c
index 76d5d87e9681..279524b640ae 100644
--- a/drivers/gpio/gpio-omap.c
+++ b/drivers/gpio/gpio-omap.c
@@ -715,7 +715,7 @@ static void omap_gpio_irq_print_chip(struct irq_data *d, struct seq_file *p)
{
struct gpio_bank *bank = omap_irq_data_get_bank(d);
- seq_printf(p, dev_name(bank->dev));
+ seq_puts(p, dev_name(bank->dev));
}
static const struct irq_chip omap_gpio_irq_chip = {
diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c
index 3f2d33ee20cc..272febc3230e 100644
--- a/drivers/gpio/gpio-pca953x.c
+++ b/drivers/gpio/gpio-pca953x.c
@@ -815,7 +815,7 @@ static void pca953x_irq_print_chip(struct irq_data *data, struct seq_file *p)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(data);
- seq_printf(p, dev_name(gc->parent));
+ seq_puts(p, dev_name(gc->parent));
}
static const struct irq_chip pca953x_irq_chip = {
diff --git a/drivers/gpio/gpio-pl061.c b/drivers/gpio/gpio-pl061.c
index a211a02d4b4a..1c273727ffa3 100644
--- a/drivers/gpio/gpio-pl061.c
+++ b/drivers/gpio/gpio-pl061.c
@@ -291,7 +291,7 @@ static void pl061_irq_print_chip(struct irq_data *data, struct seq_file *p)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(data);
- seq_printf(p, dev_name(gc->parent));
+ seq_puts(p, dev_name(gc->parent));
}
static const struct irq_chip pl061_irq_chip = {
diff --git a/drivers/gpio/gpio-tegra.c b/drivers/gpio/gpio-tegra.c
index 6d3a39a03f58..9ad286adf263 100644
--- a/drivers/gpio/gpio-tegra.c
+++ b/drivers/gpio/gpio-tegra.c
@@ -600,7 +600,7 @@ static void tegra_gpio_irq_print_chip(struct irq_data *d, struct seq_file *s)
{
struct gpio_chip *chip = irq_data_get_irq_chip_data(d);
- seq_printf(s, dev_name(chip->parent));
+ seq_puts(s, dev_name(chip->parent));
}
static const struct irq_chip tegra_gpio_irq_chip = {
diff --git a/drivers/gpio/gpio-tegra186.c b/drivers/gpio/gpio-tegra186.c
index 1ecb733a5e88..6895b65c86af 100644
--- a/drivers/gpio/gpio-tegra186.c
+++ b/drivers/gpio/gpio-tegra186.c
@@ -610,7 +610,7 @@ static void tegra186_irq_print_chip(struct irq_data *data, struct seq_file *p)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(data);
- seq_printf(p, dev_name(gc->parent));
+ seq_puts(p, dev_name(gc->parent));
}
static const struct irq_chip tegra186_gpio_irq_chip = {
diff --git a/drivers/gpio/gpio-tqmx86.c b/drivers/gpio/gpio-tqmx86.c
index f2e7e8754d95..5e26eb3adabb 100644
--- a/drivers/gpio/gpio-tqmx86.c
+++ b/drivers/gpio/gpio-tqmx86.c
@@ -275,7 +275,7 @@ static void tqmx86_gpio_irq_print_chip(struct irq_data *d, struct seq_file *p)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
- seq_printf(p, gc->label);
+ seq_puts(p, gc->label);
}
static const struct irq_chip tqmx86_gpio_irq_chip = {
diff --git a/drivers/gpio/gpio-visconti.c b/drivers/gpio/gpio-visconti.c
index ebc71ecdb6cf..5bd965c18a46 100644
--- a/drivers/gpio/gpio-visconti.c
+++ b/drivers/gpio/gpio-visconti.c
@@ -142,7 +142,7 @@ static void visconti_gpio_irq_print_chip(struct irq_data *d, struct seq_file *p)
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
struct visconti_gpio *priv = gpiochip_get_data(gc);
- seq_printf(p, dev_name(priv->dev));
+ seq_puts(p, dev_name(priv->dev));
}
static const struct irq_chip visconti_gpio_irq_chip = {
diff --git a/drivers/gpio/gpio-xgs-iproc.c b/drivers/gpio/gpio-xgs-iproc.c
index d445eea03687..e9390f136b3c 100644
--- a/drivers/gpio/gpio-xgs-iproc.c
+++ b/drivers/gpio/gpio-xgs-iproc.c
@@ -198,7 +198,7 @@ static void iproc_gpio_irq_print_chip(struct irq_data *d, struct seq_file *p)
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
struct iproc_gpio_chip *chip = to_iproc_gpio(gc);
- seq_printf(p, dev_name(chip->dev));
+ seq_puts(p, dev_name(chip->dev));
}
static const struct irq_chip iproc_gpio_irq_chip = {
diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
index 3be7bd8cd8cd..8fae6dc01024 100644
--- a/drivers/irqchip/irq-gic.c
+++ b/drivers/irqchip/irq-gic.c
@@ -400,7 +400,7 @@ static void gic_irq_print_chip(struct irq_data *d, struct seq_file *p)
struct gic_chip_data *gic = irq_data_get_irq_chip_data(d);
if (gic->domain->pm_dev)
- seq_printf(p, gic->domain->pm_dev->of_node->name);
+ seq_puts(p, gic->domain->pm_dev->of_node->name);
else
seq_printf(p, "GIC-%d", (int)(gic - &gic_data[0]));
}
diff --git a/drivers/irqchip/irq-mvebu-pic.c b/drivers/irqchip/irq-mvebu-pic.c
index 08b0cc862adf..b815a60f930c 100644
--- a/drivers/irqchip/irq-mvebu-pic.c
+++ b/drivers/irqchip/irq-mvebu-pic.c
@@ -71,7 +71,7 @@ static void mvebu_pic_print_chip(struct irq_data *d, struct seq_file *p)
{
struct mvebu_pic *pic = irq_data_get_irq_chip_data(d);
- seq_printf(p, dev_name(&pic->pdev->dev));
+ seq_puts(p, dev_name(&pic->pdev->dev));
}
static const struct irq_chip mvebu_pic_chip = {
diff --git a/drivers/irqchip/irq-versatile-fpga.c b/drivers/irqchip/irq-versatile-fpga.c
index ca471c6fee99..0abc8934c2ee 100644
--- a/drivers/irqchip/irq-versatile-fpga.c
+++ b/drivers/irqchip/irq-versatile-fpga.c
@@ -69,7 +69,7 @@ static void fpga_irq_print_chip(struct irq_data *d, struct seq_file *p)
{
struct fpga_irq_data *f = irq_data_get_irq_chip_data(d);
- seq_printf(p, irq_domain_get_of_node(f->domain)->name);
+ seq_puts(p, irq_domain_get_of_node(f->domain)->name);
}
static const struct irq_chip fpga_chip = {
diff --git a/drivers/pinctrl/bcm/pinctrl-iproc-gpio.c b/drivers/pinctrl/bcm/pinctrl-iproc-gpio.c
index fd5ce52d05b1..c9a3d3aa8c10 100644
--- a/drivers/pinctrl/bcm/pinctrl-iproc-gpio.c
+++ b/drivers/pinctrl/bcm/pinctrl-iproc-gpio.c
@@ -309,7 +309,7 @@ static void iproc_gpio_irq_print_chip(struct irq_data *d, struct seq_file *p)
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
struct iproc_gpio *chip = gpiochip_get_data(gc);
- seq_printf(p, dev_name(chip->dev));
+ seq_puts(p, dev_name(chip->dev));
}
static const struct irq_chip iproc_gpio_irq_chip = {
diff --git a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
index 4c4ada06423d..335744ac8310 100644
--- a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
+++ b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
@@ -734,7 +734,7 @@ static void armada_37xx_irq_print_chip(struct irq_data *d, struct seq_file *p)
struct gpio_chip *chip = irq_data_get_irq_chip_data(d);
struct armada_37xx_pinctrl *info = gpiochip_get_data(chip);
- seq_printf(p, info->data->name);
+ seq_puts(p, info->data->name);
}
static const struct irq_chip armada_37xx_irqchip = {
diff --git a/drivers/pinctrl/pinctrl-mcp23s08.c b/drivers/pinctrl/pinctrl-mcp23s08.c
index 737d0ae3d0b6..d66c3a3e8429 100644
--- a/drivers/pinctrl/pinctrl-mcp23s08.c
+++ b/drivers/pinctrl/pinctrl-mcp23s08.c
@@ -569,7 +569,7 @@ static void mcp23s08_irq_print_chip(struct irq_data *d, struct seq_file *p)
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
struct mcp23s08 *mcp = gpiochip_get_data(gc);
- seq_printf(p, dev_name(mcp->dev));
+ seq_puts(p, dev_name(mcp->dev));
}
static const struct irq_chip mcp23s08_irq_chip = {
diff --git a/drivers/pinctrl/pinctrl-stmfx.c b/drivers/pinctrl/pinctrl-stmfx.c
index d2c5321dd025..31d68183b743 100644
--- a/drivers/pinctrl/pinctrl-stmfx.c
+++ b/drivers/pinctrl/pinctrl-stmfx.c
@@ -599,7 +599,7 @@ static void stmfx_pinctrl_irq_print_chip(struct irq_data *d, struct seq_file *p)
struct gpio_chip *gpio_chip = irq_data_get_irq_chip_data(d);
struct stmfx_pinctrl *pctl = gpiochip_get_data(gpio_chip);
- seq_printf(p, dev_name(pctl->dev));
+ seq_puts(p, dev_name(pctl->dev));
}
static const struct irq_chip stmfx_pinctrl_irq_chip = {
diff --git a/drivers/pinctrl/pinctrl-sx150x.c b/drivers/pinctrl/pinctrl-sx150x.c
index fd0331a87cda..dbe14566e1f3 100644
--- a/drivers/pinctrl/pinctrl-sx150x.c
+++ b/drivers/pinctrl/pinctrl-sx150x.c
@@ -584,7 +584,7 @@ static void sx150x_irq_print_chip(struct irq_data *d, struct seq_file *p)
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
struct sx150x_pinctrl *pctl = gpiochip_get_data(gc);
- seq_printf(p, pctl->client->name);
+ seq_puts(p, pctl->client->name);
}
static const struct irq_chip sx150x_irq_chip = {
diff --git a/drivers/pinctrl/renesas/pinctrl-rzg2l.c b/drivers/pinctrl/renesas/pinctrl-rzg2l.c
index 5a403915fed2..8742b440339e 100644
--- a/drivers/pinctrl/renesas/pinctrl-rzg2l.c
+++ b/drivers/pinctrl/renesas/pinctrl-rzg2l.c
@@ -2290,7 +2290,7 @@ static void rzg2l_gpio_irq_print_chip(struct irq_data *data, struct seq_file *p)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(data);
- seq_printf(p, dev_name(gc->parent));
+ seq_puts(p, dev_name(gc->parent));
}
static int rzg2l_gpio_irq_set_wake(struct irq_data *data, unsigned int on)
--
2.39.2
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