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CVE-2025-71198— iio: imu: st_lsm6dsx: fix iio_chan_spec for sensors without event detection

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，该漏洞源于未正确处理不支持事件检测的传感器，可能导致空指针取消引用。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.20% · P9

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 10

VendorProduct Version RangeStatus
Linux Linux b5969abfa8b8ed43ebd93479d394f664bd4a5a87< 7673167fac9323110973a3300637adba7d45de3a affected
b5969abfa8b8ed43ebd93479d394f664bd4a5a87< 4d60ffcdedfe2cdb68a1cde19bb292bc67451629 affected
b5969abfa8b8ed43ebd93479d394f664bd4a5a87< 81ed6e42d6e555dd978c9dd5e3f7c20cb121221b affected
b5969abfa8b8ed43ebd93479d394f664bd4a5a87< c34e2e2d67b3bb8d5a6d09b0d6dac845cdd13fb3 affected
5.5 affected
< 5.5 unaffected
6.6.122≤ 6.6.* unaffected
6.12.68≤ 6.12.* unaffected
… +2 more rows
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I. Basic Information for CVE-2025-71198

Vulnerability Information
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Vulnerability Title
iio: imu: st_lsm6dsx: fix iio_chan_spec for sensors without event detection
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: iio: imu: st_lsm6dsx: fix iio_chan_spec for sensors without event detection The st_lsm6dsx_acc_channels array of struct iio_chan_spec has a non-NULL event_spec field, indicating support for IIO events. However, event detection is not supported for all sensors, and if userspace tries to configure accelerometer wakeup events on a sensor device that does not support them (e.g. LSM6DS0), st_lsm6dsx_write_event() dereferences a NULL pointer when trying to write to the wakeup register. Define an additional struct iio_chan_spec array whose members have a NULL event_spec field, and use this array instead of st_lsm6dsx_acc_channels for sensors without event detection capability.
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，该漏洞源于未正确处理不支持事件检测的传感器，可能导致空指针取消引用。
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 b5969abfa8b8ed43ebd93479d394f664bd4a5a87 ~ 7673167fac9323110973a3300637adba7d45de3a -
Linux Linux 5.5 -

II. Public POCs for CVE-2025-71198

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III. Intelligence Information for CVE-2025-71198

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Same Patch Batch · Linux · 2026-02-04 · 79 CVEs total

CVE-2026-23098 8.8 HIGH netrom: fix double-free in nr_route_frame()
CVE-2026-23066 7.8 HIGH rxrpc: Fix recvmsg() unconditional requeue
CVE-2026-23074 7.8 HIGH net/sched: Enforce that teql can only be used as root qdisc
CVE-2026-23077 7.8 HIGH mm/vma: fix anon_vma UAF on mremap() faulted, unfaulted merge
CVE-2026-23105 7.8 HIGH net/sched: qfq: Use cl_is_active to determine whether class is active in qfq_rm_from_ag
CVE-2026-23103 7.8 HIGH ipvlan: Make the addrs_lock be per port
CVE-2026-23095 7.5 HIGH gue: Fix skb memleak with inner IP protocol 0.
CVE-2025-71192 7.0 HIGH ALSA: ac97: fix a double free in snd_ac97_controller_register()
CVE-2026-23064 net/sched: act_ife: avoid possible NULL deref
CVE-2026-23065 platform/x86/amd: Fix memory leak in wbrf_record()
CVE-2026-23067 iommu/io-pgtable-arm: fix size_t signedness bug in unmap path
CVE-2026-23042 idpf: fix aux device unplugging when rdma is not supported by vport
CVE-2026-23060 crypto: authencesn - reject too-short AAD (assoclen<8) to match ESP/ESN spec
CVE-2026-23059 scsi: qla2xxx: Sanitize payload size to prevent member overflow
CVE-2026-23058 can: ems_usb: ems_usb_read_bulk_callback(): fix URB memory leak
CVE-2026-23057 vsock/virtio: Coalesce only linear skb
CVE-2026-23056 uacce: implement mremap in uacce_vm_ops to return -EPERM
CVE-2025-71199 iio: adc: at91-sama5d2_adc: Fix potential use-after-free in sama5d2_adc driver
CVE-2025-71197 w1: therm: Fix off-by-one buffer overflow in alarms_store
CVE-2026-23061 can: kvaser_usb: kvaser_usb_read_bulk_callback(): fix URB memory leak

Showing top 20 of 79 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-71198

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