diff options
| author | Hugo Villeneuve <hvilleneuve@dimonoff.com> | 2024-01-18 10:21:57 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-01-27 19:05:03 -0800 |
| commit | 0d27056c24efd3d63a03f3edfbcfc4827086b110 (patch) | |
| tree | cf57999a3efe71e4cac8c52bdfed125293cf407e /tools/perf/scripts/python/bin | |
| parent | serial: stm32: get FIFO size from hwcfg register (diff) | |
| download | linux-0d27056c24efd3d63a03f3edfbcfc4827086b110.tar.gz linux-0d27056c24efd3d63a03f3edfbcfc4827086b110.zip | |
serial: max310x: fix NULL pointer dereference in I2C instantiation
When trying to instantiate a max14830 device from userspace:
echo max14830 0x60 > /sys/bus/i2c/devices/i2c-2/new_device
we get the following error:
Unable to handle kernel NULL pointer dereference at virtual address...
...
Call trace:
max310x_i2c_probe+0x48/0x170 [max310x]
i2c_device_probe+0x150/0x2a0
...
Add check for validity of devtype to prevent the error, and abort probe
with a meaningful error message.
Fixes: 2e1f2d9a9bdb ("serial: max310x: implement I2C support")
Cc: stable@vger.kernel.org
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
Link: https://lore.kernel.org/r/20240118152213.2644269-2-hugo@hugovil.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/bin')
0 files changed, 0 insertions, 0 deletions