Updated: 2026-02-27 03:14:12.152093
Description:
In the Linux kernel, the following vulnerability has been resolved: comedi: pcl812: Fix bit shift out of bounds When checking for a supported IRQ number, the following test is used: if ((1 << it->options[1]) & board->irq_bits) { However, `it->options[i]` is an unchecked `int` value from userspace, so the shift amount could be negative or out of bounds. Fix the test by requiring `it->options[1]` to be within bounds before proceeding with the original test. Valid `it->options[1]` values that select the IRQ will be in the range [1,15]. The value 0 explicitly disables the use of interrupts.
| Links | NIST | CIRCL | RHEL | Ubuntu |
| Severity | Score | |
|---|---|---|
| CVSS Version 2.x | 0.0 | |
| CVSS Version 3.x | HIGH | 7.1 |
| OS name | Project name | Version | Score | Severity | Status | Errata | Last updated | Statement |
|---|---|---|---|---|---|---|---|---|
| AlmaLinux 9.2 ESU | kernel | 5.14.0 | 7.1 | HIGH | Not Vulnerable | 2026-01-12 17:45:34 | Not affected: CVE-2025-38530 only impacts the Linux comedi pcl812 driver (drivers/comedi/drivers/pcl... | |
| CentOS 6 ELS | kernel | 2.6.32 | 7.1 | HIGH | Not Vulnerable | 2026-01-08 16:15:27 | CVE-2025-38530 only affects the comedi pcl812 driver in the Linux kernel’s staging tree and is exp... | |
| CentOS 7 ELS | kernel | 3.10.0 | 7.1 | HIGH | Not Vulnerable | 2026-01-09 20:13:48 | Not affected: this issue is confined to the optional comedi pcl812 ISA DAQ driver (CONFIG_COMEDI_PCL... | |
| CentOS 8.4 ELS | kernel | 4.18.0 | 7.1 | HIGH | Not Vulnerable | 2026-01-27 15:01:15 | CVE-2025-38530 only applies to the Linux kernel’s comedi pcl812 driver, which is reachable only wh... | |
| CentOS 8.5 ELS | kernel | 4.18.0 | 7.1 | HIGH | Not Vulnerable | 2026-01-27 15:01:16 | CVE-2025-38530 only applies to the Linux kernel’s comedi pcl812 driver, which is reachable only wh... | |
| CentOS Stream 8 ELS | kernel | 4.18.0 | 7.1 | HIGH | Released | CLSA-2026:1770032032 | 2026-02-02 15:05:04 | |
| CloudLinux 7 ELS | kernel | 3.10.0 | 7.1 | HIGH | Not Vulnerable | 2026-02-21 21:40:18 | Not affected: this issue is confined to the optional comedi pcl812 ISA DAQ driver (CONFIG_COMEDI_PCL... | |
| Oracle Linux 6 ELS | kernel | 2.6.32 | 7.1 | HIGH | Not Vulnerable | 2026-02-21 21:40:20 | CVE-2025-38530 only affects the comedi pcl812 driver in the Linux kernel’s staging tree and is exp... | |
| Oracle Linux 7 ELS | kernel | 3.10.0 | 7.1 | HIGH | Not Vulnerable | 2026-02-21 21:40:19 | Not affected: this issue is confined to the optional comedi pcl812 ISA DAQ driver (CONFIG_COMEDI_PCL... | |
| Oracle Linux 7 ELS | kernel-uek | 5.4.17 | 7.1 | HIGH | Released | CLSA-2025:1764085382 | 2025-11-25 20:35:12 | Not affected: this issue is confined to the optional comedi pcl812 ISA DAQ driver (CONFIG_COMEDI_PCL... |