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Medium RLSA-2025:22801 3 CVEs

Moderate: kernel security update

Published Dec 13, 2025 · Updated Dec 13, 2025

Summary

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

Security Fix(es):

* kernel: mm: kmem: fix a NULL pointer dereference in obj_stock_flush_required() (CVE-2023-53401)

* kernel: RDMA/rxe: Fix incomplete state save in rxe_requester (CVE-2023-53539)

* kernel: RDMA/rxe: Fix mr->map double free (CVE-2022-50543)

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 · 8 kernel 0:4.18.0-553.89.1.el8_10

Vulnerabilities 3

  • High 7.8

    RDMA/rxe: Fix mr->map double free

    In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fix mr->map double free rxe_mr_cleanup() which tries to free mr->map again will be called when rxe_mr_init_user() fails: CPU: 0 PID: 4917 Comm: rdma_flush_serv Kdump: loaded Not tai…

  • High 7.8

    RDMA/rxe: Fix incomplete state save in rxe_requester

    In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fix incomplete state save in rxe_requester If a send packet is dropped by the IP layer in rxe_requester() the call to rxe_xmit_packet() can fail with err == -EAGAIN. To recover, the…

  • Medium 4.7

    mm: kmem: fix a NULL pointer dereference in obj_stock_flush_required()

    In the Linux kernel, the following vulnerability has been resolved: mm: kmem: fix a NULL pointer dereference in obj_stock_flush_required() KCSAN found an issue in obj_stock_flush_required(): stock->cached_objcg can be reset between the check and dereference: …

References

  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2396417
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2401510
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2402222