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OpenAdvisories
High ALSA-2025:15011 8 CVEs

Important: kernel security update

Published Sep 2, 2025 · Updated Oct 29, 2026

Ecosystem: AlmaLinux

Summary

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

Security Fix(es):

* kernel: net_sched: hfsc: Fix a potential UAF in hfsc_dequeue() too (CVE-2025-37823)
* kernel: i40e: fix MMIO write access to an invalid page in i40e_clear_hw (CVE-2025-38200)
* kernel: RDMA/iwcm: Fix use-after-free of work objects after cm_id destruction (CVE-2025-38211)
* kernel: net/sched: Always pass notifications when child class becomes empty (CVE-2025-38350)
* kernel: tipc: Fix use-after-free in tipc_conn_close() (CVE-2025-38464)
* kernel: vsock: Fix transport_* TOCTOU (CVE-2025-38461)
* kernel: xfrm: interface: fix use-after-free after changing collect_md xfrm interface (CVE-2025-38500)

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 76

ReleasePackageFixed in
AlmaLinux · 9 kernel 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-64k 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-64k-core 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-64k-debug 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-64k-debug-core 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-64k-debug-devel 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-64k-debug-devel-matched 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-64k-debug-modules 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-64k-debug-modules-core 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-64k-debug-modules-extra 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-64k-devel 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-64k-devel-matched 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-64k-modules 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-64k-modules-core 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-64k-modules-extra 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-abi-stablelists 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-core 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-cross-headers 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-debug 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-debug-core 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-debug-devel 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-debug-devel-matched 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-debug-modules 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-debug-modules-core 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-debug-modules-extra 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-debug-uki-virt 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-devel 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-devel-matched 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-doc 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-headers 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-modules 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-modules-core 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-modules-extra 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-rt 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-rt-64k 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-rt-64k-core 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-rt-64k-debug 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-rt-64k-debug-core 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-rt-64k-debug-devel 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-rt-64k-debug-modules 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-rt-64k-debug-modules-core 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-rt-64k-debug-modules-extra 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-rt-64k-devel 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-rt-64k-modules 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-rt-64k-modules-core 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-rt-64k-modules-extra 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-rt-core 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-rt-debug 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-rt-debug-core 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-rt-debug-devel 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-rt-debug-kvm 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-rt-debug-modules 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-rt-debug-modules-core 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-rt-debug-modules-extra 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-rt-devel 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-rt-kvm 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-rt-modules 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-rt-modules-core 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-rt-modules-extra 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-tools 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-tools-libs 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-tools-libs-devel 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-uki-virt 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-uki-virt-addons 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-zfcpdump 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-zfcpdump-core 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-zfcpdump-devel 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-zfcpdump-devel-matched 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-zfcpdump-modules 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-zfcpdump-modules-core 5.14.0-570.39.1.el9_6
AlmaLinux · 9 kernel-zfcpdump-modules-extra 5.14.0-570.39.1.el9_6
AlmaLinux · 9 libperf 5.14.0-570.39.1.el9_6
AlmaLinux · 9 perf 5.14.0-570.39.1.el9_6
AlmaLinux · 9 python3-perf 5.14.0-570.39.1.el9_6
AlmaLinux · 9 rtla 5.14.0-570.39.1.el9_6
AlmaLinux · 9 rv 5.14.0-570.39.1.el9_6

Vulnerabilities 8

  • Critical 9.8
    CVE-2025-38211

    RDMA/iwcm: Fix use-after-free of work objects after cm_id destruction

    In the Linux kernel, the following vulnerability has been resolved: RDMA/iwcm: Fix use-after-free of work objects after cm_id destruction The commit 59c68ac31e15 ("iw_cm: free cm_id resources on the last deref") simplified cm_id resource management by freeing…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 7.8
    CVE-2025-37823

    net_sched: hfsc: Fix a potential UAF in hfsc_dequeue() too

    In the Linux kernel, the following vulnerability has been resolved: net_sched: hfsc: Fix a potential UAF in hfsc_dequeue() too Similarly to the previous patch, we need to safe guard hfsc_dequeue() too. But for this one, we don't have a reliable reproducer.

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • High 7.8
    CVE-2025-38350

    net/sched: Always pass notifications when child class becomes empty

    In the Linux kernel, the following vulnerability has been resolved: net/sched: Always pass notifications when child class becomes empty Certain classful qdiscs may invoke their classes' dequeue handler on an enqueue operation. This may unexpectedly empty the …

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 7.8
    CVE-2025-38464

    tipc: Fix use-after-free in tipc_conn_close().

    In the Linux kernel, the following vulnerability has been resolved: tipc: Fix use-after-free in tipc_conn_close(). syzbot reported a null-ptr-deref in tipc_conn_close() during netns dismantle. [0] tipc_topsrv_stop() iterates tipc_net(net)->topsrv->conn_idr an…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 7.8
    CVE-2025-38500

    xfrm: interface: fix use-after-free after changing collect_md xfrm interface

    In the Linux kernel, the following vulnerability has been resolved: xfrm: interface: fix use-after-free after changing collect_md xfrm interface collect_md property on xfrm interfaces can only be set on device creation, thus xfrmi_changelink() should fail whe…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 7.0
    CVE-2025-38461

    vsock: Fix transport_* TOCTOU

    In the Linux kernel, the following vulnerability has been resolved: vsock: Fix transport_* TOCTOU Transport assignment may race with module unload. Protect new_transport from becoming a stale pointer. This also takes care of an insecure call in vsock_use_loca…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • Unscored —
    CVE-2025-38200

    i40e: fix MMIO write access to an invalid page in i40e_clear_hw

    In the Linux kernel, the following vulnerability has been resolved: i40e: fix MMIO write access to an invalid page in i40e_clear_hw When the device sends a specific input, an integer underflow can occur, leading to MMIO write access to an invalid page. Preven…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • Unscored —
    CVE-2025-38684

    net/sched: ets: use old 'nbands' while purging unused classes

    In the Linux kernel, the following vulnerability has been resolved: net/sched: ets: use old 'nbands' while purging unused classes Shuang reported sch_ets test-case [1] crashing in ets_class_qlen_notify() after recent changes from Lion [2]. The problem is: in …

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu

References

  • report
    https://bugzilla.redhat.com/2365024
  • report
    https://bugzilla.redhat.com/2376392
  • report
    https://bugzilla.redhat.com/2376406
  • report
    https://bugzilla.redhat.com/2382054
  • report
    https://bugzilla.redhat.com/2383509
  • report
    https://bugzilla.redhat.com/2383513
  • report
    https://bugzilla.redhat.com/2387866
  • advisory
    https://errata.almalinux.org/9/ALSA-2025-15011.html
  • report
    https://www.redhat.com/security/data/cve/CVE-2025-37823.html
  • report
    https://www.redhat.com/security/data/cve/CVE-2025-38200.html
  • report
    https://www.redhat.com/security/data/cve/CVE-2025-38211.html
  • report
    https://www.redhat.com/security/data/cve/CVE-2025-38350.html
  • report
    https://www.redhat.com/security/data/cve/CVE-2025-38461.html
  • report
    https://www.redhat.com/security/data/cve/CVE-2025-38464.html
  • report
    https://www.redhat.com/security/data/cve/CVE-2025-38500.html
  • report
    https://www.redhat.com/security/data/cve/CVE-2025-38684.html