Bug 2388917 (CVE-2025-38531)

Summary: CVE-2025-38531 kernel: iio: common: st_sensors: Fix use of uninitialize device structs
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Version: unspecifiedKeywords: Security
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OS: Linux   
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Description OSIDB Bzimport 2025-08-16 12:01:15 UTC 
In the Linux kernel, the following vulnerability has been resolved:

iio: common: st_sensors: Fix use of uninitialize device structs

Throughout the various probe functions &indio_dev->dev is used before it
is initialized. This caused a kernel panic in st_sensors_power_enable()
when the call to devm_regulator_bulk_get_enable() fails and then calls
dev_err_probe() with the uninitialized device.

This seems to only cause a panic with dev_err_probe(), dev_err(),
dev_warn() and dev_info() don't seem to cause a panic, but are fixed
as well.

The issue is reported and traced here: [1]
Comment 1 Alexander B 2025-08-18 11:48:46 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025081655-CVE-2025-38531-abbc@gregkh/T