CVE-2023-52627
Assigner: Linux
Published: 2024-03-26T17:49:59.834Z
State: PUBLISHED
descriptions: value: 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.
affected: product: Linux
vendor: Linux
defaultStatus: unaffected
repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
versions: version: ca69300173b6
lessThan: 1eba6f7ffa29
status: affected
versionType: git
version: ca69300173b6
lessThan: 49f322ce1f26
status: affected
versionType: git
version: ca69300173b6
lessThan: 137568aa540a
status: affected
versionType: git
version: ca69300173b6
lessThan: 89c4e63324e2
status: affected
versionType: git
version: ca69300173b6
lessThan: 55aca2ce91a6
status: affected
versionType: git
version: ca69300173b6
lessThan: 020e71c7ffc2
status: affected
versionType: git
product: Linux
vendor: Linux
defaultStatus: affected
repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
versions: version: 5.6
status: affected
version: 0
lessThan: 5.6
status: unaffected
versionType: custom
version: 5.10.210
lessThanOrEqual: 5.10.*
status: unaffected
versionType: custom
version: 5.15.149
lessThanOrEqual: 5.15.*
status: unaffected
versionType: custom
version: 6.1.76
lessThanOrEqual: 6.1.*
status: unaffected
versionType: custom
version: 6.6.15
lessThanOrEqual: 6.6.*
status: unaffected
versionType: custom
version: 6.7.3
lessThanOrEqual: 6.7.*
status: unaffected
versionType: custom
version: 6.8
lessThanOrEqual: *
status: unaffected
versionType: original_commit_for_fix
title: iio: adc: ad7091r: Allow users to configure device events
x_generator: engine: bippy-b4257b672505