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Medium 1 exploited CVE ALSA-2025:16880 5 CVEs

Moderate: kernel security update

Published Sep 29, 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: netfilter: nf_conntrack: fix crash due to removal of uninitialised entry (CVE-2025-38472)
* kernel: smb: client: fix use-after-free in cifs_oplock_break (CVE-2025-38527)
* kernel: sctp: linearize cloned gso packets in sctp_rcv (CVE-2025-38718)
* kernel: tls: fix handling of zero-length records on the rx_list (CVE-2025-39682)
* kernel: io_uring/futex: ensure io_futex_wait() cleans up properly on failure (CVE-2025-39698)

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 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-64k 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-64k-core 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-64k-debug 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-64k-debug-core 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-64k-debug-devel 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-64k-debug-devel-matched 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-64k-debug-modules 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-64k-debug-modules-core 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-64k-debug-modules-extra 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-64k-devel 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-64k-devel-matched 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-64k-modules 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-64k-modules-core 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-64k-modules-extra 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-abi-stablelists 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-core 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-cross-headers 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-debug 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-debug-core 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-debug-devel 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-debug-devel-matched 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-debug-modules 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-debug-modules-core 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-debug-modules-extra 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-debug-uki-virt 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-devel 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-devel-matched 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-doc 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-headers 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-modules 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-modules-core 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-modules-extra 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-rt 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-rt-64k 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-rt-64k-core 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-rt-64k-debug 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-rt-64k-debug-core 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-rt-64k-debug-devel 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-rt-64k-debug-modules 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-rt-64k-debug-modules-core 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-rt-64k-debug-modules-extra 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-rt-64k-devel 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-rt-64k-modules 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-rt-64k-modules-core 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-rt-64k-modules-extra 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-rt-core 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-rt-debug 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-rt-debug-core 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-rt-debug-devel 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-rt-debug-kvm 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-rt-debug-modules 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-rt-debug-modules-core 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-rt-debug-modules-extra 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-rt-devel 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-rt-kvm 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-rt-modules 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-rt-modules-core 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-rt-modules-extra 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-tools 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-tools-libs 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-tools-libs-devel 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-uki-virt 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-uki-virt-addons 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-zfcpdump 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-zfcpdump-core 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-zfcpdump-devel 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-zfcpdump-devel-matched 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-zfcpdump-modules 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-zfcpdump-modules-core 5.14.0-570.49.1.el9_6
AlmaLinux · 9 kernel-zfcpdump-modules-extra 5.14.0-570.49.1.el9_6
AlmaLinux · 9 libperf 5.14.0-570.49.1.el9_6
AlmaLinux · 9 perf 5.14.0-570.49.1.el9_6
AlmaLinux · 9 python3-perf 5.14.0-570.49.1.el9_6
AlmaLinux · 9 rtla 5.14.0-570.49.1.el9_6
AlmaLinux · 9 rv 5.14.0-570.49.1.el9_6

Vulnerabilities 5

  • Critical 9.8
    CVE-2025-39682 Exploited Public exploit

    tls: fix handling of zero-length records on the rx_list

    In the Linux kernel, the following vulnerability has been resolved: tls: fix handling of zero-length records on the rx_list Each recvmsg() call must process either - only contiguous DATA records (any number of them) - one non-DATA record If the next record ha…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
    KEV Sep 18, 2026
  • Critical 9.8
    CVE-2025-38472

    netfilter: nf_conntrack: fix crash due to removal of uninitialised entry

    In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conntrack: fix crash due to removal of uninitialised entry A crash in conntrack was reported while trying to unlink the conntrack entry from the hash bucket list: [exception RIP…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • Critical 9.8
    CVE-2025-38527

    smb: client: fix use-after-free in cifs_oplock_break

    In the Linux kernel, the following vulnerability has been resolved: smb: client: fix use-after-free in cifs_oplock_break A race condition can occur in cifs_oplock_break() leading to a use-after-free of the cinode structure when unmounting: cifs_oplock_break()…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 7.8
    CVE-2025-38718

    sctp: linearize cloned gso packets in sctp_rcv

    In the Linux kernel, the following vulnerability has been resolved: sctp: linearize cloned gso packets in sctp_rcv A cloned head skb still shares these frag skbs in fraglist with the original head skb. It's not safe to access these frag skbs. syzbot reported …

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 7.8
    CVE-2025-39698

    io_uring/futex: ensure io_futex_wait() cleans up properly on failure

    In the Linux kernel, the following vulnerability has been resolved: io_uring/futex: ensure io_futex_wait() cleans up properly on failure The io_futex_data is allocated upfront and assigned to the io_kiocb async_data field, but the request isn't marked with RE…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu

References

  • report
    https://access.redhat.com/security/cve/CVE-2025-38472
  • report
    https://access.redhat.com/security/cve/CVE-2025-38527
  • report
    https://access.redhat.com/security/cve/CVE-2025-38718
  • report
    https://access.redhat.com/security/cve/CVE-2025-39682
  • report
    https://access.redhat.com/security/cve/CVE-2025-39698
  • report
    https://bugzilla.redhat.com/2383916
  • report
    https://bugzilla.redhat.com/2388928
  • report
    https://bugzilla.redhat.com/2393166
  • report
    https://bugzilla.redhat.com/2393511
  • report
    https://bugzilla.redhat.com/2393519
  • advisory
    https://errata.almalinux.org/9/ALSA-2025-16880.html