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medium5.5

CVE-2023-52806

In the Linux kernel, the following vulnerability has been resolved: ALSA: hda: Fix possible null-ptr-deref when assigning a stream While AudioDSP drivers assig…

Impact

In the Linux kernel, the following vulnerability has been resolved: ALSA: hda: Fix possible null-ptr-deref when assigning a stream While AudioDSP drivers assign streams exclusively of HOST or LINK type, nothing blocks a user to attempt to assign a COUPLED stream. As supplied substream instance may be a stub, what is the case when code-loading, such scenario ends with null-ptr-deref.

Affected products

VendorProductAffected versions
LinuxLinux Kernel
before 4.14.331
from 4.15 before 4.19.300
from 4.20 before 5.4.262
from 5.5 before 5.10.202
from 5.11 before 5.15.140
from 5.16 before 6.1.64

Weakness classification

CWE-476

References