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CVE-2023-52627— iio: adc: ad7091r: Allow users to configure device events

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于空指针取消引用。

AI Predicted 7.8 Difficulty: Hard EPSS 0.23% · P12

Possible ATT&CK Techniques 1 AI

T1205.001 · Port Knocking

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux ca69300173b642ba64118200172171ea5967b6c5< 1eba6f7ffa295a0eec098c107043074be7cc4ec5 affected
ca69300173b642ba64118200172171ea5967b6c5< 49f322ce1f265935f15e5512da69a399f27a5091 affected
ca69300173b642ba64118200172171ea5967b6c5< 137568aa540a9f587c48ff7d4c51cdba08cfe9a4 affected
ca69300173b642ba64118200172171ea5967b6c5< 89c4e63324e208a23098f7fb15c00487cecbfed2 affected
ca69300173b642ba64118200172171ea5967b6c5< 55aca2ce91a63740278502066beaddbd841af9c6 affected
ca69300173b642ba64118200172171ea5967b6c5< 020e71c7ffc25dfe29ed9be6c2d39af7bd7f661f affected
5.6 affected
< 5.6 unaffected
… +6 more rows
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I. Basic Information for CVE-2023-52627

Vulnerability Information
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Vulnerability Title
iio: adc: ad7091r: Allow users to configure device events
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于空指针取消引用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux ca69300173b642ba64118200172171ea5967b6c5 ~ 1eba6f7ffa295a0eec098c107043074be7cc4ec5 -
Linux Linux 5.6 -

II. Public POCs for CVE-2023-52627

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III. Intelligence Information for CVE-2023-52627

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Mailing List Discussions for CVE-2023-52627 (1)

Other References for CVE-2023-52627 (6)

Same Patch Batch · Linux · 2024-03-26 · 13 CVEs total

CVE-2023-52623 7.8 HIGH SUNRPC: Fix a suspicious RCU usage warning
CVE-2024-26646 7.8 HIGH thermal: intel: hfi: Add syscore callbacks for system-wide PM
CVE-2024-26644 btrfs: don't abort filesystem when attempting to snapshot deleted subvolume
CVE-2024-26645 tracing: Ensure visibility when inserting an element into tracing_map
CVE-2023-52621 bpf: Check rcu_read_lock_trace_held() before calling bpf map helpers
CVE-2023-52622 ext4: avoid online resizing failures due to oversized flex bg
CVE-2023-52624 drm/amd/display: Wake DMCUB before executing GPINT commands
CVE-2023-52625 drm/amd/display: Refactor DMCUB enter/exit idle interface
CVE-2023-52626 net/mlx5e: Fix operation precedence bug in port timestamping napi_poll context
CVE-2024-26647 drm/amd/display: Fix late derefrence 'dsc' check in 'link_set_dsc_pps_packet()'
CVE-2024-26648 drm/amd/display: Fix variable deferencing before NULL check in edp_setup_replay()
CVE-2024-26649 drm/amdgpu: Fix the null pointer when load rlc firmware

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-52627

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