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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2025-39909 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: mm/damon/lru_sort: avoid divide-by-zero in damon_lru_sort_apply_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 'hot_thres' and 'cold_thres', either 'sample_interval' or 'aggr_interval' 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 'aggr_interval' is already required to be set no smaller than 'sample_interval' in damon_set_attrs(), only the case where 'sample_interval' is zero needs to be checked.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/326a4b3750c71af3f3c52399ec4dbe33b6da4c26 kernel.org
https://git.kernel.org/stable/c/711f19dfd783ffb37ca4324388b9c4cb87e71363 kernel.org
https://git.kernel.org/stable/c/74e391f7da7d9d5235a3cca88ee9fc18f720c75b kernel.org
https://git.kernel.org/stable/c/7bb675c9f0257840d33e5d1337d7e3afdd74a6bf kernel.org
https://git.kernel.org/stable/c/af0ae62b935317bed1a1361c8c9579db9d300e70 kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2025-39909
NVD Published Date:
10/01/2025
NVD Last Modified:
10/02/2025
Source:
kernel.org