CVE-2023-52806

low-risk

Published 2024-05-21

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.

Do I need to act?

0.01% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 5.5/10 Medium

LOCAL / LOW complexity

Affected Products (1)

Linux Kernel

Affected Vendors

Linux

References (18)

Patch https://git.kernel.org/stable/c/2527775616f3638f4fd54649eba8c7b84d5e4250

Patch https://git.kernel.org/stable/c/25354bae4fc310c3928e8a42fda2d486f67745d7

Patch https://git.kernel.org/stable/c/43b91df291c8802268ab3cfd8fccfdf135800ed4

Patch https://git.kernel.org/stable/c/4a320da7f7cbdab2098b103c47f45d5061f42edd

Patch https://git.kernel.org/stable/c/631a96e9eb4228ff75fce7e72d133ca81194797e

Patch https://git.kernel.org/stable/c/758c7733cb821041f5fd403b7b97c0b95d319323

Patch https://git.kernel.org/stable/c/7de25112de8222fd20564769e6c99dc9f9738a0b

Patch https://git.kernel.org/stable/c/f93dc90c2e8ed664985e366aa6459ac83cdab236

Patch https://git.kernel.org/stable/c/fe7c1a0c2b25c82807cb46fc3aadbf2664a682b0