4.6

CVE-2026-31620

ALSA: usx2y: us144mkii: fix NULL deref on missing interface 0

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 6.18 < 6.18.24
Linux ≫ Linux Kernel Version >= 6.19 < 6.19.14
Linux ≫ Linux Kernel Version >= 7.0 < 7.0.1
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.2% 0.094
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 4.6 0.9 3.6
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

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