Import Source
https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-40511.json
JSON Data
https://api.test.osv.dev/v1/vulns/AZL-40511
Upstream
Published
2024-05-01T06:15:17Z
Modified
2026-04-01T05:14:03.142907Z
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-2024-26993 affecting package hyperv-daemons for versions less than 5.15.158.1-1
Details

In the Linux kernel, the following vulnerability has been resolved:

fs: sysfs: Fix reference leak in sysfsbreakactive_protection()

The sysfsbreakactiveprotection() routine has an obvious reference leak in its error path. If the call to kernfsfindandget() fails then kn will be NULL, so the companion sysfsunbreakactive_protection() routine won't get called (and would only cause an access violation by trying to dereference kn->parent if it was called). As a result, the reference to kobj acquired at the start of the function will never be released.

Fix the leak by adding an explicit kobject_put() call when kn is NULL.

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
5.15.158.1-1

Database specific

source
"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-40511.json"