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OpenAdvisories
High RHSA-2026:0271 8 CVEs

Red Hat Security Advisory: kernel security update

Published Jan 8, 2026 · Updated Jul 30, 2026

Ecosystem: Red Hat

Fixed packages 83

ReleasePackageFixed in
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-64k 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-64k-core 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-64k-debug 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-64k-debug-core 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-64k-debug-debuginfo 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-64k-debug-devel 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-64k-debug-devel-matched 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-64k-debug-modules 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-64k-debug-modules-core 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-64k-debug-modules-extra 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-64k-debuginfo 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-64k-devel 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-64k-devel-matched 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-64k-modules 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-64k-modules-core 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-64k-modules-extra 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-abi-stablelists 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-core 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-debug 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-debug-core 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-debug-debuginfo 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-debug-devel 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-debug-devel-matched 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-debug-modules 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-debug-modules-core 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-debug-modules-extra 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-debug-uki-virt 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-debuginfo 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-debuginfo-common-aarch64 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-debuginfo-common-ppc64le 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-debuginfo-common-s390x 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-debuginfo-common-x86_64 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-devel 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-devel-matched 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-doc 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-modules 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-modules-core 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-modules-extra 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-64k 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-64k-core 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-64k-debug 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-64k-debug-core 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-64k-debug-debuginfo 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-64k-debug-devel 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-64k-debug-modules 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-64k-debug-modules-core 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-64k-debug-modules-extra 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-64k-debuginfo 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-64k-devel 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-64k-modules 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-64k-modules-core 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-64k-modules-extra 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-core 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-debug 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-debug-core 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-debug-debuginfo 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-debug-devel 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-debug-kvm 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-debug-modules 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-debug-modules-core 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-debug-modules-extra 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-debuginfo 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-devel 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-kvm 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-modules 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-modules-core 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-modules-extra 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-tools 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-tools-debuginfo 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-tools-libs 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-tools-libs-devel 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-uki-virt 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-uki-virt-addons 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-zfcpdump 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-zfcpdump-core 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-zfcpdump-debuginfo 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-zfcpdump-devel 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-zfcpdump-devel-matched 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-zfcpdump-modules 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-zfcpdump-modules-core 0:6.12.0-55.52.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-zfcpdump-modules-extra 0:6.12.0-55.52.1.el10_0

Vulnerabilities 8

  • High 8.8
    CVE-2025-39806

    HID: multitouch: fix slab out-of-bounds access in mt_report_fixup()

    In the Linux kernel, the following vulnerability has been resolved: HID: multitouch: fix slab out-of-bounds access in mt_report_fixup() A malicious HID device can trigger a slab out-of-bounds during mt_report_fixup() by passing in report descriptor smaller th…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 8.8
    CVE-2025-39982

    Bluetooth: hci_event: Fix UAF in hci_acl_create_conn_sync

    In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_event: Fix UAF in hci_acl_create_conn_sync This fixes the following UFA in hci_acl_create_conn_sync where a connection still pending is command submission (conn->state == BT_OP…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 8.8
    CVE-2025-39983

    Bluetooth: hci_event: Fix UAF in hci_conn_tx_dequeue

    In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_event: Fix UAF in hci_conn_tx_dequeue This fixes the following UAF caused by not properly locking hdev when processing HCI_EV_NUM_COMP_PKTS: BUG: KASAN: slab-use-after-free in …

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • High 7.8
    CVE-2025-39981

    Bluetooth: MGMT: Fix possible UAFs

    In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: Fix possible UAFs This attemps to fix possible UAFs caused by struct mgmt_pending being freed while still being processed like in the following trace, in order to fix mgmt_pe…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • Medium 5.5
    CVE-2025-39925

    can: j1939: implement NETDEV_UNREGISTER notification handler

    In the Linux kernel, the following vulnerability has been resolved: can: j1939: implement NETDEV_UNREGISTER notification handler syzbot is reporting unregister_netdevice: waiting for vcan0 to become free. Usage count = 2 problem, for j1939 protocol did not ha…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • Unscored —
    CVE-2025-39843

    mm: slub: avoid wake up kswapd in set_track_prepare

    In the Linux kernel, the following vulnerability has been resolved: mm: slub: avoid wake up kswapd in set_track_prepare set_track_prepare() can incur lock recursion. The issue is that it is called from hrtimer_start_range_ns holding the per_cpu(hrtimer_bases)…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • Unscored —
    CVE-2025-39883

    mm/memory-failure: fix VM_BUG_ON_PAGE(PagePoisoned(page)) when unpoison memory

    In the Linux kernel, the following vulnerability has been resolved: mm/memory-failure: fix VM_BUG_ON_PAGE(PagePoisoned(page)) when unpoison memory When I did memory failure tests, below panic occurs: page dumped because: VM_BUG_ON_PAGE(PagePoisoned(page)) ker…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • Unscored —
    CVE-2025-40300

    x86/vmscape: Add conditional IBPB mitigation

    In the Linux kernel, the following vulnerability has been resolved: x86/vmscape: Add conditional IBPB mitigation VMSCAPE is a vulnerability that exploits insufficient branch predictor isolation between a guest and a userspace hypervisor (like QEMU). Existing …

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux

References

  • article
    https://access.redhat.com/security/updates/classification/#moderate
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2394627
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2395807
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2396941
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2397553
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2400629
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2404100
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2404105
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2404117
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_0271.json
  • report
    https://access.redhat.com/security/cve/CVE-2025-39806
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2025-39806
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2025-39806
  • article
    https://lore.kernel.org/linux-cve-announce/2025091613-CVE-2025-39806-f74d@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2025-39843
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2025-39843
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2025-39843
  • article
    https://lore.kernel.org/linux-cve-announce/2025091903-CVE-2025-39843-0702@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2025-39883
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2025-39883
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2025-39883
  • article
    https://lore.kernel.org/linux-cve-announce/2025092302-CVE-2025-39883-6015@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2025-39925
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2025-39925
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2025-39925
  • article
    https://lore.kernel.org/linux-cve-announce/2025100124-CVE-2025-39925-bcec@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2025-39981
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2025-39981
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2025-39981
  • article
    https://lore.kernel.org/linux-cve-announce/2025101559-CVE-2025-39981-fe1d@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2025-39982
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2025-39982
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2025-39982
  • article
    https://lore.kernel.org/linux-cve-announce/2025101559-CVE-2025-39982-a36e@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2025-39983
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2025-39983
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2025-39983
  • article
    https://lore.kernel.org/linux-cve-announce/2025101500-CVE-2025-39983-eb8b@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2025-40300