Import Source
https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-28505.json
JSON Data
https://api.test.osv.dev/v1/vulns/AZL-28505
Upstream
Published
2023-04-24T06:15:07Z
Modified
2026-04-01T05:09:41.294787Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
CVE-2023-31084 affecting package hyperv-daemons for versions less than 5.15.158.2-1
Details

An issue was discovered in drivers/media/dvb-core/dvbfrontend.c in the Linux kernel 6.2. There is a blocking operation when a task is in !TASKRUNNING. In dvbfrontendgetevent, waiteventinterruptible is called; the condition is dvbfrontendtestevent(fepriv,events). In dvbfrontendtestevent, down(&fepriv->sem) is called. However, waitevent_interruptible would put the process to sleep, and down(&fepriv->sem) may block the process.

References

Affected packages

Azure Linux:2 / hyperv-daemons

Package

Name
hyperv-daemons
Purl
pkg:rpm/azure-linux/hyperv-daemons

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.15.158.2-1

Database specific

source
"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-28505.json"