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Medium RLSA-2025:8374 3 CVEs

Moderate: kernel security update

Published Oct 3, 2025 · Updated Oct 8, 2025

Summary

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

* kernel: sched/fair: Fix potential memory corruption in child_cfs_rq_on_list (CVE-2025-21919)

* kernel: cifs: Fix integer overflow while processing acregmax mount option (CVE-2025-21964)

* kernel: ext4: fix OOB read when checking dotdot dir (CVE-2025-37785)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Fixed packages 1

ReleasePackageFixed in
Rocky Linux · 10 kernel 0:6.12.0-55.14.1.el10_0

Vulnerabilities 3

  • High 7.8

    sched/fair: Fix potential memory corruption in child_cfs_rq_on_list

    In the Linux kernel, the following vulnerability has been resolved: sched/fair: Fix potential memory corruption in child_cfs_rq_on_list child_cfs_rq_on_list attempts to convert a 'prev' pointer to a cfs_rq. This 'prev' pointer can originate from struct rq's l…

  • High 7.8

    ext4: fix OOB read when checking dotdot dir

    In the Linux kernel, the following vulnerability has been resolved: ext4: fix OOB read when checking dotdot dir Mounting a corrupted filesystem with directory which contains '.' dir entry with rec_len == block size results in out-of-bounds read (later on, whe…

  • Medium 5.5

    cifs: Fix integer overflow while processing acregmax mount option

    In the Linux kernel, the following vulnerability has been resolved: cifs: Fix integer overflow while processing acregmax mount option User-provided mount parameter acregmax of type u32 is intended to have an upper limit, but before it is validated, the value …

References

  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2356618
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2356665
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2360921