CVE-2026-31620
N/A
N/A
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | dee1bcf28a3dd13ddb2e9200407864f73e9c4d63 < 09b145c1f1331c40dc955c0024d636f25417cddb | affected |
| Linux | Linux | dee1bcf28a3dd13ddb2e9200407864f73e9c4d63 < fbaf29ce00e7bce683f3faf4f2b326bd0a9e6602 | affected |
| Linux | Linux | dee1bcf28a3dd13ddb2e9200407864f73e9c4d63 < d04dd67ab10dc978c6c843c6bd6a2a66a9444f51 | affected |
| Linux | Linux | dee1bcf28a3dd13ddb2e9200407864f73e9c4d63 < 48bd344e1040b9f2eb512be73c13f5db83efc191 | affected |
| Linux | Linux | 6.18 | affected |
| Linux | Linux | 0 < 6.18 | unaffected |
| Linux | Linux | 6.18.24 <= 6.18.* | unaffected |
| Linux | Linux | 6.19.14 <= 6.19.* | unaffected |
| Linux | Linux | 7.0.1 <= 7.0.* | unaffected |
| Linux | Linux | 7.1 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/09b145c1f1331c40dc955c0024d636f25417cddb
- https://git.kernel.org/stable/c/fbaf29ce00e7bce683f3faf4f2b326bd0a9e6602
- https://git.kernel.org/stable/c/d04dd67ab10dc978c6c843c6bd6a2a66a9444f51
- https://git.kernel.org/stable/c/48bd344e1040b9f2eb512be73c13f5db83efc191
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