Bug 2502247 (CVE-2026-53386)

Summary: CVE-2026-53386 kernel: iio: adc: ti-ads1298: add bounds check to pga_settings index
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
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Version: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in the Linux kernel's `ti-ads1298` Analog-to-Digital Converter (ADC) driver. This vulnerability arises from an incorrect bounds check when accessing the `pga_settings` array. An attacker could potentially provide a crafted input that leads to an out-of-bounds array access. This could result in system instability or a kernel crash, leading to a Denial of Service (DoS).
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Description OSIDB Bzimport 2026-07-19 13:03:53 UTC 
In the Linux kernel, the following vulnerability has been resolved:

iio: adc: ti-ads1298: add bounds check to pga_settings index

ads1298_pga_settings has 7 elements but ADS1298_MASK_CH_PGA can yield
values 0-7. If it yields a value >= 7, this causes an out-of-bounds
array access. Add a bounds check and return -EINVAL if the index
is out of range.

Note that the remaining value b111 is reserved so should not be seen
in a correctly functioning system.
Comment 1 Keith Grant 2026-07-20 13:37:46 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026071934-CVE-2026-53386-d76b@gregkh/T