CVE-2026-31620 (GCVE-0-2026-31620)

Vulnerability from cvelistv5 – Published: 2026-04-24 14:42 – Updated: 2026-05-11 22:12
VLAI
Title
ALSA: usx2y: us144mkii: fix NULL deref on missing interface 0
Summary
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.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: dee1bcf28a3dd13ddb2e9200407864f73e9c4d63 , < 09b145c1f1331c40dc955c0024d636f25417cddb (git)
Affected: dee1bcf28a3dd13ddb2e9200407864f73e9c4d63 , < fbaf29ce00e7bce683f3faf4f2b326bd0a9e6602 (git)
Affected: dee1bcf28a3dd13ddb2e9200407864f73e9c4d63 , < d04dd67ab10dc978c6c843c6bd6a2a66a9444f51 (git)
Affected: dee1bcf28a3dd13ddb2e9200407864f73e9c4d63 , < 48bd344e1040b9f2eb512be73c13f5db83efc191 (git)
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Linux Linux Affected: 6.18
Unaffected: 0 , < 6.18 (semver)
Unaffected: 6.18.24 , ≤ 6.18.* (semver)
Unaffected: 6.19.14 , ≤ 6.19.* (semver)
Unaffected: 7.0.1 , ≤ 7.0.* (semver)
Unaffected: 7.1-rc1 , ≤ * (original_commit_for_fix)
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}


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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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