🛡️ UBUNTU-CVE-2025-39685
⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

In the Linux kernel, the following vulnerability has been resolved: comedi: pcl726: Prevent invalid irq number The reproducer passed in an irq number(0x80008000) that was too large, which triggered the oob. Added an interrupt number check to prevent users from passing in an irq number that was too large. If `it->options[1]` is 31, then `1 <options[1]` is still invalid because it shifts a 1-bit into the sign bit (which is UB in C). Possible solutions include reducing the upper bound on the `it->options[1]` value to 30 or lower, or using `1U <options[1]`. The old code would just not attempt to request the IRQ if the `options[1]` value were invalid. And it would still configure the device without interrupts even if the call to `request_irq` returned an error. So it would be better to combine this test with the test below.

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2025-09-05
Updated 2026-06-15
Modified 2026-06-08
Fix URL N/A

Affected Packages

Software From version Fixed in
linux 6.8.0-100.100
linux-allwinner-5.19
linux-aws 6.8.0-1046.49
linux-aws-5.0
linux-aws-5.11
linux-aws-5.13
linux-aws-5.15 5.15.0-1097.104~20.04.1
linux-aws-5.19
linux-aws-5.3
linux-aws-5.4
linux-aws-5.8
linux-aws-6.14
linux-aws-6.2
linux-aws-6.5
linux-aws-6.8 6.8.0-1046.49~22.04.1
linux-aws-fips 6.8.0-1046.49+fips1
linux-aws-hwe
linux-azure 6.8.0-1046.52
linux-azure-4.15
linux-azure-5.11
linux-azure-5.13
linux-azure-5.15 5.15.0-1102.111~20.04.1
linux-azure-5.19
linux-azure-5.3
linux-azure-5.4
linux-azure-5.8
linux-azure-6.11
linux-azure-6.14
linux-azure-6.2
linux-azure-6.5
linux-azure-6.8 6.8.0-1051.57~22.04.1
linux-azure-edge
linux-azure-fde
linux-azure-fde-5.19
linux-azure-fde-6.14
linux-azure-fde-6.17
linux-azure-fde-6.2
linux-azure-fde-6.8
linux-azure-fips 6.8.0-1046.52+fips1
linux-azure-nvidia
linux-azure-nvidia-6.14
linux-bluefield
linux-fips 6.8.0-100.100+fips1
linux-gcp 6.8.0-1047.50
linux-gcp-4.15
linux-gcp-5.11
linux-gcp-5.13
linux-gcp-5.15 5.15.0-1097.106~20.04.1
linux-gcp-5.19
linux-gcp-5.3
linux-gcp-5.4
linux-gcp-5.8
linux-gcp-6.11
linux-gcp-6.14
linux-gcp-6.2
linux-gcp-6.5
linux-gcp-6.8 6.8.0-1047.50~22.04.2
linux-gcp-fips 6.8.0-1047.50+fips1
linux-gke 6.8.0-1043.48
linux-gke-4.15
linux-gke-5.15
linux-gke-5.4
linux-gkeop 6.8.0-1030.33
linux-gkeop-5.15
linux-gkeop-5.4
linux-hwe
linux-hwe-5.11
linux-hwe-5.13
linux-hwe-5.15 5.15.0-163.173~20.04.1
linux-hwe-5.19
linux-hwe-5.4
linux-hwe-5.8
linux-hwe-6.11
linux-hwe-6.14
linux-hwe-6.2
linux-hwe-6.5
linux-hwe-6.8 6.8.0-100.100~22.04.1
linux-hwe-edge
linux-ibm 6.8.0-1044.44
linux-ibm-5.15 5.15.0-1091.94~20.04.1
linux-ibm-5.4
linux-ibm-6.8 6.8.0-1044.44~22.04.1
linux-intel
linux-intel-5.13
linux-intel-iot-realtime 5.15.0-1089.91
linux-intel-iotg 5.15.0-1092.98
linux-intel-iotg-5.15 5.15.0-1092.98~20.04.1
linux-iot
linux-kvm 5.15.0-1089.94
linux-lowlatency 6.8.0-100.100.1
linux-lowlatency-hwe-5.15 5.15.0-163.173~20.04.1
linux-lowlatency-hwe-5.19
linux-lowlatency-hwe-6.11
linux-lowlatency-hwe-6.2
linux-lowlatency-hwe-6.5
linux-lowlatency-hwe-6.8 6.8.0-100.100.1~22.04.1
linux-lts-xenial
linux-nvidia 6.8.0-1046.49
linux-nvidia-6.11
linux-nvidia-6.2
linux-nvidia-6.5
linux-nvidia-6.8 6.8.0-1046.49~22.04.1
linux-nvidia-lowlatency 6.8.0-1046.49.1
linux-nvidia-tegra 6.8.0-1020.20
linux-nvidia-tegra-5.15 5.15.0-1049.49~20.04.1
linux-nvidia-tegra-igx 5.15.0-1038.38
linux-oem
linux-oem-5.10
linux-oem-5.13
linux-oem-5.14
linux-oem-5.17
linux-oem-5.6
linux-oem-6.0
linux-oem-6.1
linux-oem-6.11
linux-oem-6.14
linux-oem-6.5
linux-oem-6.8
linux-oracle 6.8.0-1043.44
linux-oracle-5.0
linux-oracle-5.11
linux-oracle-5.13
linux-oracle-5.15 5.15.0-1094.100~20.04.1
linux-oracle-5.3
linux-oracle-5.4
linux-oracle-5.8
linux-oracle-6.14
linux-oracle-6.5
linux-oracle-6.8 6.8.0-1043.44~22.04.1
linux-raspi 6.8.0-1047.51
linux-raspi-5.4
linux-raspi-realtime 6.8.0-2037.38
linux-raspi2
linux-realtime 6.8.1-1041.42
linux-realtime-6.14
linux-realtime-6.8 6.8.1-1041.42~22.04.1
linux-riscv
linux-riscv-5.11
linux-riscv-5.15 5.15.0-1092.96~20.04.1
linux-riscv-5.19
linux-riscv-5.8
linux-riscv-6.14
linux-riscv-6.5
linux-riscv-6.8 6.8.0-100.100~22.04.1
linux-starfive-5.19
linux-starfive-6.2
linux-starfive-6.5
linux-xilinx 6.8.0-1023.24
linux-xilinx-zynqmp 5.15.0-1061.65

References

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