CVE-2023-52806
ALSA: hda: Fix possible null-ptr-deref when assigning a stream
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
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.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
4.2
References 9
git.kernel.org
- stable/c/7de25112de8222fd20564769e6c99dc9f9738a0b
- stable/c/758c7733cb821041f5fd403b7b97c0b95d319323
- stable/c/2527775616f3638f4fd54649eba8c7b84d5e4250
- stable/c/25354bae4fc310c3928e8a42fda2d486f67745d7
- stable/c/631a96e9eb4228ff75fce7e72d133ca81194797e
- stable/c/43b91df291c8802268ab3cfd8fccfdf135800ed4
- stable/c/fe7c1a0c2b25c82807cb46fc3aadbf2664a682b0
- stable/c/4a320da7f7cbdab2098b103c47f45d5061f42edd
- stable/c/f93dc90c2e8ed664985e366aa6459ac83cdab236