Medium severity4.6NVD Advisory· Published Apr 24, 2026· Updated Apr 28, 2026
CVE-2026-31620
CVE-2026-31620
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
9- osv-coords7 versionspkg:apk/chainguard/linux-aws-6.18pkg:apk/chainguard/linux-azure-6.18pkg:apk/chainguard/linux-gcp-6.18pkg:apk/chainguard/linux-qemu-6.18pkg:apk/chainguard/linux-qemu-6.18-bootc-boot-installedpkg:apk/chainguard/linux-vmware-6.18pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Tumbleweed
< 6.18.31-r0+ 6 more
- (no CPE)range: < 6.18.31-r0
- (no CPE)range: < 6.18.31-r0
- (no CPE)range: < 6.18.31-r0
- (no CPE)range: < 6.18.31-r0
- (no CPE)range: < 6.18.31-r0
- (no CPE)range: < 6.18.31-r0
- (no CPE)range: < 7.0.3-1.1
Patches
Vulnerability mechanics
References
4News mentions
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