AZL-68013
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-68013.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/AZL-68013
- Upstream
- Published
- 2025-10-01T08:15:33Z
- Modified
- 2026-04-01T05:21:50.840614Z
- Summary
- CVE-2025-39909 affecting package kernel for versions less than 6.6.112.1-1
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
mm/damon/lrusort: avoid divide-by-zero in damonlrusortapply_parameters()
Patch series "mm/damon: avoid divide-by-zero in DAMON module's parameters application".
DAMON's RECLAIM and LRU_SORT modules perform no validation on user-configured parameters during application, which may lead to division-by-zero errors.
Avoid the divide-by-zero by adding validation checks when DAMON modules attempt to apply the parameters.
This patch (of 2):
During the calculation of 'hotthres' and 'coldthres', either 'sampleinterval' or 'aggrinterval' is used as the divisor, which may lead to division-by-zero errors. Fix it by directly returning -EINVAL when such a case occurs. Additionally, since 'aggrinterval' is already required to be set no smaller than 'sampleinterval' in damonsetattrs(), only the case where 'sample_interval' is zero needs to be checked.
- References