CVE-2026-31620

MEDIUM EPSS 9.5%
Published Apr 24, 20262mo ago · Modified Jun 17, 20261w ago
4.6 CVSS 3.1
Medium
Find Similar
Published Apr 24, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: ALSA: usx2y: us144mkii: fix NULL deref on missing interface 0 A malicious USB device with the TASCAM US-144MKII device id can have a configuration containing bInterfaceNumber=1 but no interface 0. USB configuration descriptors are not required to assign interface numbers sequentially, so usb_ifnum_to_if(dev, 0) returns will NULL, which will then be dereferenced directly. Fix this up by checking the return value properly.

CVSS Details

Base Score
4.6
Exploitability
0.9
Impact
3.6
Vector string
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Physical
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
9.5% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 3

VendorProductVersionRange
linuxlinux_kernel*≥6.18  –  <6.18.24
linuxlinux_kernel*≥6.19  –  <6.19.14
linuxlinux_kernel*≥7.0  –  <7.0.1

References 4

  • git.kernel.org https://git.kernel.org/stable/c/09b145c1f1331c40dc955c0024d636f25417cddb
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/48bd344e1040b9f2eb512be73c13f5db83efc191
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d04dd67ab10dc978c6c843c6bd6a2a66a9444f51
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/fbaf29ce00e7bce683f3faf4f2b326bd0a9e6602
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/09b145c1f1331c40dc955c0024d636f25417cddb
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/48bd344e1040b9f2eb512be73c13f5db83efc191
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d04dd67ab10dc978c6c843c6bd6a2a66a9444f51
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/fbaf29ce00e7bce683f3faf4f2b326bd0a9e6602
    Patch