Skip to content
OpenAdvisories
Critical RHSA-2025:22124 14 CVEs

Red Hat Security Advisory: kernel-rt security update

Published Nov 26, 2025 · Updated Aug 6, 2026

Ecosystem: Red Hat

Fixed packages 32

ReleasePackageFixed in
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt 0:5.14.0-284.148.1.rt14.433.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-core 0:5.14.0-284.148.1.rt14.433.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-debug 0:5.14.0-284.148.1.rt14.433.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-debug-core 0:5.14.0-284.148.1.rt14.433.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-debug-debuginfo 0:5.14.0-284.148.1.rt14.433.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-debug-devel 0:5.14.0-284.148.1.rt14.433.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-debug-kvm 0:5.14.0-284.148.1.rt14.433.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-debug-modules 0:5.14.0-284.148.1.rt14.433.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-debug-modules-core 0:5.14.0-284.148.1.rt14.433.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-debug-modules-extra 0:5.14.0-284.148.1.rt14.433.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-debuginfo 0:5.14.0-284.148.1.rt14.433.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-debuginfo-common-x86_64 0:5.14.0-284.148.1.rt14.433.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-devel 0:5.14.0-284.148.1.rt14.433.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-kvm 0:5.14.0-284.148.1.rt14.433.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-modules 0:5.14.0-284.148.1.rt14.433.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-modules-core 0:5.14.0-284.148.1.rt14.433.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-modules-extra 0:5.14.0-284.148.1.rt14.433.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt 0:5.14.0-284.148.1.rt14.433.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-core 0:5.14.0-284.148.1.rt14.433.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-debug 0:5.14.0-284.148.1.rt14.433.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-debug-core 0:5.14.0-284.148.1.rt14.433.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-debug-debuginfo 0:5.14.0-284.148.1.rt14.433.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-debug-devel 0:5.14.0-284.148.1.rt14.433.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-debug-modules 0:5.14.0-284.148.1.rt14.433.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-debug-modules-core 0:5.14.0-284.148.1.rt14.433.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-debug-modules-extra 0:5.14.0-284.148.1.rt14.433.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-debuginfo 0:5.14.0-284.148.1.rt14.433.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-debuginfo-common-x86_64 0:5.14.0-284.148.1.rt14.433.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-devel 0:5.14.0-284.148.1.rt14.433.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-modules 0:5.14.0-284.148.1.rt14.433.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-modules-core 0:5.14.0-284.148.1.rt14.433.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-modules-extra 0:5.14.0-284.148.1.rt14.433.el9_2

Vulnerabilities 14

  • Critical 9.8
    CVE-2025-39702

    ipv6: sr: Fix MAC comparison to be constant-time

    In the Linux kernel, the following vulnerability has been resolved: ipv6: sr: Fix MAC comparison to be constant-time To prevent timing attacks, MACs need to be compared in constant time. Use the appropriate helper function for this.

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 8.8
    CVE-2022-50386

    Bluetooth: L2CAP: Fix user-after-free

    In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix user-after-free This uses l2cap_chan_hold_unless_zero() after calling __l2cap_get_chan_blah() to prevent the following trace: Bluetooth: l2cap_core.c:static void l2cap_c…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • High 8.8
    CVE-2023-53297

    Bluetooth: L2CAP: fix "bad unlock balance" in l2cap_disconnect_rsp

    In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: fix "bad unlock balance" in l2cap_disconnect_rsp conn->chan_lock isn't acquired before l2cap_get_chan_by_scid, if l2cap_get_chan_by_scid returns NULL, then 'bad unlock balan…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • High 7.5
    CVE-2023-52610

    net/sched: act_ct: fix skb leak and crash on ooo frags

    In the Linux kernel, the following vulnerability has been resolved: net/sched: act_ct: fix skb leak and crash on ooo frags act_ct adds skb->users before defragmentation. If frags arrive in order, the last frag's reference is reset in: inet_frag_reasm_prepare …

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • High 7.1
    CVE-2023-53257

    wifi: mac80211: check S1G action frame size

    In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: check S1G action frame size Before checking the action code, check that it even exists in the frame.

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • High 7.1
    CVE-2025-39817

    efivarfs: Fix slab-out-of-bounds in efivarfs_d_compare

    In the Linux kernel, the following vulnerability has been resolved: efivarfs: Fix slab-out-of-bounds in efivarfs_d_compare Observed on kernel 6.6 (present on master as well): BUG: KASAN: slab-out-of-bounds in memcmp+0x98/0xd0 Call trace: kasan_check_range+0xe…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • Medium 5.5
    CVE-2023-53365

    ip6mr: Fix skb_under_panic in ip6mr_cache_report()

    In the Linux kernel, the following vulnerability has been resolved: ip6mr: Fix skb_under_panic in ip6mr_cache_report() skbuff: skb_under_panic: text:ffffffff88771f69 len:56 put:-4 head:ffff88805f86a800 data:ffff887f5f86a850 tail:0x88 end:0x2c0 dev:pim6reg ---…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • Unscored —
    CVE-2023-53513

    nbd: fix incomplete validation of ioctl arg

    In the Linux kernel, the following vulnerability has been resolved: nbd: fix incomplete validation of ioctl arg We tested and found an alarm caused by nbd_ioctl arg without verification. The UBSAN warning calltrace like below: UBSAN: Undefined behaviour in fs…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • Unscored —
    CVE-2024-35868

    smb: client: fix potential UAF in cifs_stats_proc_write()

    In the Linux kernel, the following vulnerability has been resolved: smb: client: fix potential UAF in cifs_stats_proc_write() Skip sessions that are being teared down (status == SES_EXITING) to avoid UAF.

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • Unscored —
    CVE-2024-46679

    ethtool: check device is present when getting link settings

    In the Linux kernel, the following vulnerability has been resolved: ethtool: check device is present when getting link settings A sysfs reader can race with a device reset or removal, attempting to read device state when the device is not actually present. eg…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • Unscored —
    CVE-2025-38729

    ALSA: usb-audio: Validate UAC3 power domain descriptors, too

    In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Validate UAC3 power domain descriptors, too UAC3 power domain descriptors need to be verified with its variable bLength for avoiding the unexpected OOB accesses by malicious …

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • Unscored —
    CVE-2025-39730

    NFS: Fix filehandle bounds checking in nfs_fh_to_dentry()

    In the Linux kernel, the following vulnerability has been resolved: NFS: Fix filehandle bounds checking in nfs_fh_to_dentry() The function needs to check the minimal filehandle length before it can access the embedded filehandle.

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • Unscored —
    CVE-2025-39757

    ALSA: usb-audio: Validate UAC3 cluster segment descriptors

    In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Validate UAC3 cluster segment descriptors UAC3 class segment descriptors need to be verified whether their sizes match with the declared lengths and whether they fit with the…

    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=2270080
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2281745
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2312067
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2393164
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2393533
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2393731
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2394615
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2394627
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2395253
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2395681
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2395805
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2396130
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2396431
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2400795
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2025/rhsa-2025_22124.json
  • report
    https://access.redhat.com/security/cve/CVE-2022-50386
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2022-50386
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2022-50386
  • article
    https://lore.kernel.org/linux-cve-announce/2025091852-CVE-2022-50386-07d7@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2023-52610
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2023-52610
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2023-52610
  • article
    https://lore.kernel.org/linux-cve-announce/20240318100758.2828621-10-lee@kernel.org/T
  • report
    https://access.redhat.com/security/cve/CVE-2023-53257
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2023-53257
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2023-53257
  • article
    https://lore.kernel.org/linux-cve-announce/2025091503-CVE-2023-53257-6162@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2023-53297
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2023-53297
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2023-53297
  • article
    https://lore.kernel.org/linux-cve-announce/2025091627-CVE-2023-53297-8746@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2023-53365
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2023-53365
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2023-53365
  • article
    https://lore.kernel.org/linux-cve-announce/2025091723-CVE-2023-53365-acb1@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2023-53513
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2023-53513
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2023-53513