CVE-2025-38529

HIGH EPSS 5.9%
Published Aug 16, 202510mo ago · Modified Jun 17, 20261w ago
7.1 CVSS 3.1
High
Find Similar
Published Aug 16, 2025 10mo ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: comedi: aio_iiro_16: Fix bit shift out of bounds When checking for a supported IRQ number, the following test is used: if ((1 << it->options[1]) & 0xdcfc) { 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.

CVSS Details

Base Score
7.1
Exploitability
1.8
Impact
5.2
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
5.9% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-125 Out-of-bounds Read Memory Safety

Affected Products 14

VendorProductVersionRange
linuxlinux_kernel*≥4.0  –  <5.4.297
linuxlinux_kernel*≥5.5  –  <5.10.241
linuxlinux_kernel*≥5.11  –  <5.15.190
linuxlinux_kernel*≥5.16  –  <6.1.147
linuxlinux_kernel*≥6.2  –  <6.6.100
linuxlinux_kernel*≥6.7  –  <6.12.40
linuxlinux_kernel*≥6.13  –  <6.15.8
linuxlinux_kernel6.16any
linuxlinux_kernel6.16any
linuxlinux_kernel6.16any
linuxlinux_kernel6.16any
linuxlinux_kernel6.16any
linuxlinux_kernel6.16any
debiandebian_linux11.0any

References 10

  • git.kernel.org https://git.kernel.org/stable/c/43ddd82e6a91913cea1c078e782afd8de60c3a53
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5ac7c60439236fb691b8c7987390e2327bbf18fa
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/66acb1586737a22dd7b78abc63213b1bcaa100e4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/955e8835855fed8e87f7d8c8075564a1746c1b4c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a88692245c315bf8e225f205297a6f4b13d6856a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c593215385f0c0163015cca4512ed3ff42875d19
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e0f3c0867d7d231c70984f05c97752caacd0daba
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ff30dd3f15f443d2a0085b12ec2cc95d44f35fa7
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
    Mailing ListThird Party Advisory
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
    Mailing ListThird Party Advisory

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/43ddd82e6a91913cea1c078e782afd8de60c3a53
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5ac7c60439236fb691b8c7987390e2327bbf18fa
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/66acb1586737a22dd7b78abc63213b1bcaa100e4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/955e8835855fed8e87f7d8c8075564a1746c1b4c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a88692245c315bf8e225f205297a6f4b13d6856a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c593215385f0c0163015cca4512ed3ff42875d19
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e0f3c0867d7d231c70984f05c97752caacd0daba
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ff30dd3f15f443d2a0085b12ec2cc95d44f35fa7
    Patch