Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Local access with low privilege required to reach the IIO device interface; kernel memory corruption from the OOB dereference yields full C/I/A impact.
AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Primary rating from Vendor (Linux).
CVSS VectorVendor: Linux
Lifecycle Timeline
5DescriptionCVE.org
In the Linux kernel, the following vulnerability has been resolved:
iio: adc: xilinx-ams: fix out-of-bounds channel lookup in event handling
ams_event_to_channel() may return a pointer past the end of dev->channels when no matching scan_index is found. This can lead to invalid memory access in ams_handle_event().
Add a bounds check in ams_event_to_channel() and return NULL when no channel is found. Also guard the caller to safely handle this case.
AnalysisAI
Out-of-bounds memory access in the Linux kernel's xilinx-ams IIO ADC driver allows a local low-privileged user to corrupt kernel memory through malformed event handling in ams_handle_event(). Affected versions span multiple stable kernel branches beginning with the commit that introduced the xilinx-ams driver, with the flaw present from Linux 5.17 onward across the 6.1, 6.6, 6.12, 6.18, and 7.1 stable series. No public exploit exists and EPSS sits at 0.18% (8th percentile), though vendor-released patches are confirmed across six stable branches and the CVSS 7.8 score reflects genuine kernel memory corruption potential on affected Xilinx hardware platforms.
Technical ContextAI
The xilinx-ams driver (drivers/iio/adc/xilinx-ams.c) provides Linux IIO (Industrial I/O) subsystem support for Xilinx/AMD FPGA and SoC platforms that include on-chip Analog Mixed Signal (AMS) components - typically the System Monitor (SYSMON) peripheral present in UltraScale+, Zynq, and Zynq UltraScale+ device families. The function ams_event_to_channel() iterates dev->channels to locate a channel whose scan_index matches the incoming IIO event descriptor, but lacks a terminating bounds check: when no match is found, the function returns a pointer that has advanced past the end of the channels array. ams_handle_event() then dereferences this out-of-bounds pointer, constituting a kernel-space out-of-bounds memory access. The CPE cpe:2.3:a:linux:linux covers the upstream kernel codebase. No CWE is formally assigned by NVD, but the root cause maps squarely to CWE-125 (Out-of-bounds Read) and, depending on how the invalid pointer is subsequently used, potentially CWE-787 (Out-of-bounds Write). The fix adds a NULL-return guard in ams_event_to_channel() and a caller-side NULL check in ams_handle_event().
RemediationAI
The primary remediation is upgrading to a patched stable kernel release: 6.1.178 or later in the 6.1.x series, 6.6.145 or later in the 6.6.x series, 6.12.97 or later in the 6.12.x series, 6.18.40 or later in the 6.18.x series, or 7.1.5 or later in the 7.1.x series. Individual fix commits for cherry-picking against custom kernel builds are available at https://git.kernel.org/stable/c/116d1f8805ae2daadbac89d24da4c0da50b9edae, https://git.kernel.org/stable/c/94d158985b6ea011bdc26186f42d662a156da6cb, https://git.kernel.org/stable/c/1d24f14e049fdd769146dda026496ed23b397ed9, https://git.kernel.org/stable/c/9ac3675bf875792dced45efbf47116719a7c097b, https://git.kernel.org/stable/c/3c374d33f1338dbb5676919c5194caa9c5aa1631, and https://git.kernel.org/stable/c/947eb6f0a274f8b15a0248051a65b069effd5057. For systems that cannot be patched immediately, blacklisting the xilinx_ams kernel module via 'echo blacklist xilinx_ams >> /etc/modprobe.d/xilinx-ams-blacklist.conf && dracut -f' disables the vulnerable driver entirely, though this will render AMS/SYSMON monitoring functionality unavailable on Xilinx hardware - an acceptable trade-off for unpatched environments. Additionally, restricting local user access to the IIO event character device via filesystem ACLs or an AppArmor/SELinux policy targeting /dev/iio:device* reduces the attack surface without disabling the driver.
Same technique Buffer Overflow
View allVendor StatusVendor
SUSE
Severity: Moderate| Product | Status |
|---|---|
| SUSE Linux Enterprise Desktop 15 SP7 | Not-Affected |
| SUSE Linux Enterprise Desktop 15 SP7 | Not-Affected |
| SUSE Linux Enterprise High Availability Extension 15 SP7 | Not-Affected |
| SUSE Linux Enterprise High Availability Extension 15 SP7 | Not-Affected |
| SUSE Linux Enterprise High Availability Extension 16.0 | Not-Affected |
| SUSE Linux Enterprise High Availability Extension 16.0 | Not-Affected |
| SUSE Linux Enterprise High Availability Extension 16.1 | Not-Affected |
| SUSE Linux Enterprise High Availability Extension 16.1 | Not-Affected |
| SUSE Linux Enterprise Live Patching 15 SP7 | Not-Affected |
| SUSE Linux Enterprise Live Patching 15 SP7 | Not-Affected |
| SUSE Linux Enterprise Micro 5.3 | Not-Affected |
| SUSE Linux Enterprise Micro 5.3 | Not-Affected |
| SUSE Linux Enterprise Micro 5.3 | Not-Affected |
| SUSE Linux Enterprise Micro 5.3 | Not-Affected |
| SUSE Linux Enterprise Micro 5.4 | Not-Affected |
| SUSE Linux Enterprise Micro 5.4 | Not-Affected |
| SUSE Linux Enterprise Micro 5.4 | Not-Affected |
| SUSE Linux Enterprise Micro 5.4 | Not-Affected |
| SUSE Linux Enterprise Micro 5.5 | Not-Affected |
| SUSE Linux Enterprise Micro 5.5 | Not-Affected |
| SUSE Linux Enterprise Micro 5.5 | Not-Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 | Not-Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 | Not-Affected |
| SUSE Linux Enterprise Module for Development Tools 15 SP7 | Not-Affected |
| SUSE Linux Enterprise Module for Development Tools 15 SP7 | Not-Affected |
| SUSE Linux Enterprise Module for Legacy 15 SP7 | Not-Affected |
| SUSE Linux Enterprise Module for Legacy 15 SP7 | Not-Affected |
| SUSE Linux Enterprise Real Time 15 SP7 | Not-Affected |
| SUSE Linux Enterprise Server 15 SP7 | Not-Affected |
| SUSE Linux Enterprise Server 15 SP7 | Not-Affected |
| SUSE Linux Enterprise Server 16.0 | Not-Affected |
| SUSE Linux Enterprise Server 16.0 | Not-Affected |
| SUSE Linux Enterprise Server 16.1 | Not-Affected |
| SUSE Linux Enterprise Server 16.1 | Not-Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | Not-Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | Not-Affected |
| SUSE Linux Enterprise Server for SAP applications 16.0 | Not-Affected |
| SUSE Linux Enterprise Server for SAP applications 16.0 | Not-Affected |
| SUSE Linux Enterprise Server for SAP applications 16.1 | Not-Affected |
| SUSE Linux Enterprise Server for SAP applications 16.1 | Not-Affected |
| SUSE Linux Enterprise Workstation Extension 15 SP7 | Not-Affected |
| SUSE Linux Enterprise Workstation Extension 15 SP7 | Not-Affected |
| SUSE Linux Micro 6.0 | Not-Affected |
| SUSE Linux Micro 6.0 | Not-Affected |
| SUSE Linux Micro 6.0 | Not-Affected |
| SUSE Linux Micro 6.1 | Not-Affected |
| SUSE Linux Micro 6.1 | Not-Affected |
| SUSE Linux Micro 6.1 | Not-Affected |
| SUSE Linux Micro 6.2 | Not-Affected |
| SUSE Linux Micro 6.2 | Not-Affected |
| SUSE Linux Micro Extras 6.0 | Not-Affected |
| SUSE Linux Micro Extras 6.0 | Not-Affected |
| SUSE Linux Micro Extras 6.0 | Not-Affected |
| SUSE Linux Micro Extras 6.1 | Not-Affected |
| SUSE Linux Micro Extras 6.1 | Not-Affected |
| SUSE Real Time Module 15 SP7 | Not-Affected |
| openSUSE Leap 16.0 | Not-Affected |
| SUSE Linux Enterprise High Performance Computing 12 SP5 | Not-Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | Not-Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | Not-Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | Not-Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | Not-Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | Not-Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP4 | Not-Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP5 | Not-Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP6 | Affected |
| SUSE Linux Enterprise Module for Development Tools 15 SP4 | Not-Affected |
| SUSE Linux Enterprise Module for Development Tools 15 SP5 | Not-Affected |
| SUSE Linux Enterprise Module for Development Tools 15 SP6 | Affected |
| SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE | Not-Affected |
| SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE | Not-Affected |
| SUSE Linux Enterprise Server 12 SP5 | Not-Affected |
| SUSE Linux Enterprise Server 12 SP5-LTSS | Not-Affected |
| SUSE Linux Enterprise Server 12 SP5-LTSS | Not-Affected |
| SUSE Linux Enterprise Server 15 SP4 | Not-Affected |
| SUSE Linux Enterprise Server 15 SP4-LTSS | Not-Affected |
| SUSE Linux Enterprise Server 15 SP4-LTSS | Not-Affected |
| SUSE Linux Enterprise Server 15 SP5 | Not-Affected |
| SUSE Linux Enterprise Server 15 SP5-LTSS | Not-Affected |
| SUSE Linux Enterprise Server 15 SP5-LTSS | Not-Affected |
| SUSE Linux Enterprise Server 15 SP6 | Affected |
| SUSE Linux Enterprise Server 15 SP6-LTSS | Affected |
| SUSE Linux Enterprise Server 15 SP6-LTSS | Affected |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | Not-Affected |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | Not-Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | Not-Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | Not-Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | Not-Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | Not-Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | Affected |
| SUSE CaaS Platform 4.0 | Not-Affected |
| SUSE Enterprise Storage 6 | Not-Affected |
| SUSE Enterprise Storage 7 | Not-Affected |
| SUSE Enterprise Storage 7.1 | Not-Affected |
| SUSE Linux Enterprise Desktop 11 SP4 | Not-Affected |
| SUSE Linux Enterprise Desktop 15 SP1 | Not-Affected |
| SUSE Linux Enterprise Desktop 15 SP2 | Not-Affected |
| SUSE Linux Enterprise Desktop 15 SP3 | Not-Affected |
| SUSE Linux Enterprise Desktop 15 SP4 | Not-Affected |
| SUSE Linux Enterprise Desktop 15 SP5 | Not-Affected |
| SUSE Linux Enterprise Desktop 15 SP6 | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1 | Not-Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS | Not-Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS | Not-Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2 | Not-Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS | Not-Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | Not-Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3 | Not-Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS | Not-Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | Not-Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4 | Not-Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | Not-Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | Not-Affected |
| SUSE Linux Enterprise Micro 5.0 | Not-Affected |
| SUSE Linux Enterprise Micro 5.1 | Not-Affected |
| SUSE Linux Enterprise Micro 5.2 | Not-Affected |
| SUSE Linux Enterprise Micro 5.2 | Not-Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP1 | Not-Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP2 | Not-Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP3 | Not-Affected |
| SUSE Linux Enterprise Module for Development Tools 15 SP1 | Not-Affected |
| SUSE Linux Enterprise Module for Development Tools 15 SP2 | Not-Affected |
| SUSE Linux Enterprise Module for Development Tools 15 SP3 | Not-Affected |
| SUSE Linux Enterprise Real Time 15 SP2 | Not-Affected |
| SUSE Linux Enterprise Real Time 15 SP3 | Not-Affected |
| SUSE Linux Enterprise Real Time 15 SP4 | Not-Affected |
| SUSE Linux Enterprise Real Time 15 SP4 | Not-Affected |
| SUSE Linux Enterprise Real Time 15 SP5 | Not-Affected |
| SUSE Linux Enterprise Server 11 SP4 | Not-Affected |
| SUSE Linux Enterprise Server 11 SP4-LTSS | Not-Affected |
| SUSE Linux Enterprise Server 15 SP1 | Not-Affected |
| SUSE Linux Enterprise Server 15 SP1-BCL | Not-Affected |
| SUSE Linux Enterprise Server 15 SP1-LTSS | Not-Affected |
| SUSE Linux Enterprise Server 15 SP1-LTSS | Not-Affected |
| SUSE Linux Enterprise Server 15 SP2 | Not-Affected |
| SUSE Linux Enterprise Server 15 SP2-BCL | Not-Affected |
| SUSE Linux Enterprise Server 15 SP2-LTSS | Not-Affected |
| SUSE Linux Enterprise Server 15 SP2-LTSS | Not-Affected |
| SUSE Linux Enterprise Server 15 SP3 | Not-Affected |
| SUSE Linux Enterprise Server 15 SP3-BCL | Not-Affected |
| SUSE Linux Enterprise Server 15 SP3-LTSS | Not-Affected |
| SUSE Linux Enterprise Server 15 SP3-LTSS | Not-Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP1 | Not-Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP2 | Not-Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP3 | Not-Affected |
| SUSE Manager Proxy 4.0 | Not-Affected |
| SUSE Manager Proxy 4.1 | Not-Affected |
| SUSE Manager Proxy 4.2 | Not-Affected |
| SUSE Manager Proxy 4.3 | Not-Affected |
| SUSE Manager Proxy LTS 4.3 | Not-Affected |
| SUSE Manager Retail Branch Server 4.0 | Not-Affected |
| SUSE Manager Retail Branch Server 4.1 | Not-Affected |
| SUSE Manager Retail Branch Server 4.2 | Not-Affected |
| SUSE Manager Retail Branch Server 4.3 | Not-Affected |
| SUSE Manager Retail Branch Server LTS 4.3 | Not-Affected |
| SUSE Manager Server 4.0 | Not-Affected |
| SUSE Manager Server 4.1 | Not-Affected |
| SUSE Manager Server 4.2 | Not-Affected |
| SUSE Manager Server 4.3 | Not-Affected |
| SUSE Manager Server LTS 4.3 | Not-Affected |
| SUSE Real Time Module 15 SP4 | Not-Affected |
| SUSE Real Time Module 15 SP5 | Not-Affected |
| openSUSE Leap 15.3 | Not-Affected |
| openSUSE Leap 15.4 | Not-Affected |
| openSUSE Leap 15.4 | Not-Affected |
| openSUSE Leap 15.5 | Not-Affected |
| openSUSE Leap 15.5 | Not-Affected |
| openSUSE Leap 15.6 | Affected |
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-59379
GHSA-c7xc-qxg6-9546