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CVE-2026-31620

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.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:55036795c95c0899eb2e9044999f23767147f6cd9047b3886921e2deeb89b359
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"affected","product":"Linux","programFiles":["sound/usb/usx2y/us144mkii.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.18"},{"lessThan":"6.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.24","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.14","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.1","versionType":"semver"},{"lessT…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:32260d9ce5f4be3e39b0507cf2b8ddcf85493be5177f8a2891cc5f1df727e4f6 · sha256:af7fb1b4ae616e3e… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["sound/usb/usx2y/us144mkii.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"09b145c1f1331c40dc955c0024d636f25417cddb","status":"affected","version":"dee1bcf28a3dd13ddb2e9200407864f73e9c4d63","versionType":"git"},{"lessThan":"fbaf29ce00e7bce683f3faf4f2b326bd0a9e6602","status":"affected","version":"dee1bcf28a3dd13ddb2e9200407864f73e9c4d63","versionType":"git"},{"lessThan":"d04dd67ab10dc978c6c843c6bd6a2a66a9444f51","status":"affected","version":"dee1bcf28a3dd13ddb…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:32260d9ce5f4be3e39b0507cf2b8ddcf85493be5177f8a2891cc5f1df727e4f6 · sha256:af7fb1b4ae616e3e… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["sound/usb/usx2y/us144mkii.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.18"},{"lessThan":"6.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.24","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.14","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.1","versionType":"semver"},{"lessT…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:32260d9ce5f4be3e39b0507cf2b8ddcf85493be5177f8a2891cc5f1df727e4f6 · sha256:af7fb1b4ae616e3e… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["sound/usb/usx2y/us144mkii.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"09b145c1f1331c40dc955c0024d636f25417cddb","status":"affected","version":"dee1bcf28a3dd13ddb2e9200407864f73e9c4d63","versionType":"git"},{"lessThan":"fbaf29ce00e7bce683f3faf4f2b326bd0a9e6602","status":"affected","version":"dee1bcf28a3dd13ddb2e9200407864f73e9c4d63","versionType":"git"},{"lessThan":"d04dd67ab10dc978c6c843c6bd6a2a66a9444f51","status":"affected","version":"dee1bcf28a3dd13ddb…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:32260d9ce5f4be3e39b0507cf2b8ddcf85493be5177f8a2891cc5f1df727e4f6 · sha256:af7fb1b4ae616e3e… · /containers/cna/affected/0

Source references

4 source assertions
{"url":"https://git.kernel.org/stable/c/09b145c1f1331c40dc955c0024d636f25417cddb"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:32260d9ce5f4be3e39b0507cf2b8ddcf85493be5177f8a2891cc5f1df727e4f6 · sha256:af7fb1b4ae616e3e… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/48bd344e1040b9f2eb512be73c13f5db83efc191"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:32260d9ce5f4be3e39b0507cf2b8ddcf85493be5177f8a2891cc5f1df727e4f6 · sha256:af7fb1b4ae616e3e… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/d04dd67ab10dc978c6c843c6bd6a2a66a9444f51"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:32260d9ce5f4be3e39b0507cf2b8ddcf85493be5177f8a2891cc5f1df727e4f6 · sha256:af7fb1b4ae616e3e… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/fbaf29ce00e7bce683f3faf4f2b326bd0a9e6602"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:32260d9ce5f4be3e39b0507cf2b8ddcf85493be5177f8a2891cc5f1df727e4f6 · sha256:af7fb1b4ae616e3e… · /containers/cna/references/1

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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