CVE-2023-52627

2024-03-2600:00:00

ubuntu.com

linux kernel

cve-2023-52627

vulnerability

iio events

ad7091r-5 driver

callback functions

thresholds

event configuration

generic event spec structures

ad7091r devices

7.4 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

10.4%

JSON

In the Linux kernel, the following vulnerability has been resolved: iio:
adc: ad7091r: Allow users to configure device events AD7091R-5 devices are
supported by the ad7091r-5 driver together with the ad7091r-base driver.
Those drivers declared iio events for notifying user space when ADC
readings fall bellow the thresholds of low limit registers or above the
values set in high limit registers. However, to configure iio events and
their thresholds, a set of callback functions must be implemented and those
were not present until now. The consequence of trying to configure
ad7091r-5 events without the proper callback functions was a null pointer
dereference in the kernel because the pointers to the callback functions
were not set. Implement event configuration callbacks allowing users to
read/write event thresholds and enable/disable event generation. Since the
event spec structs are generic to AD7091R devices, also move those from the
ad7091r-5 driver the base driver so they can be reused when support for
ad7091r-2/-4/-8 be added.

Notes

Author	Note
rodrigo-zaiden	USN-6765-1 for linux-oem-6.5 wrongly stated that this CVE was fixed in version 6.5.0-1022.23. The mentioned notice was revoked and the state of the fix for linux-oem-6.5 was recovered to the previous state.

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< anyUNKNOWN
ubuntu20.04noarchlinux< anyUNKNOWN
ubuntu22.04noarchlinux< 5.15.0-106.116UNKNOWN
ubuntu23.10noarchlinux< 6.5.0-41.41UNKNOWN
ubuntu24.04noarchlinux< anyUNKNOWN
ubuntu14.04noarchlinux< anyUNKNOWN
ubuntu16.04noarchlinux< anyUNKNOWN
ubuntu18.04noarchlinux-aws< anyUNKNOWN
ubuntu20.04noarchlinux-aws< anyUNKNOWN
ubuntu22.04noarchlinux-aws< 5.15.0-1061.67UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	linux	< any	UNKNOWN
ubuntu	20.04	noarch	linux	< any	UNKNOWN
ubuntu	22.04	noarch	linux	< 5.15.0-106.116	UNKNOWN
ubuntu	23.10	noarch	linux	< 6.5.0-41.41	UNKNOWN
ubuntu	24.04	noarch	linux	< any	UNKNOWN
ubuntu	14.04	noarch	linux	< any	UNKNOWN
ubuntu	16.04	noarch	linux	< any	UNKNOWN
ubuntu	18.04	noarch	linux-aws	< any	UNKNOWN
ubuntu	20.04	noarch	linux-aws	< any	UNKNOWN
ubuntu	22.04	noarch	linux-aws	< 5.15.0-1061.67	UNKNOWN