Red Hat Security Advisory: kernel security update
🔗 CVE IDs covered (13)
📋 Description
CVE-2022-50341 — kernel: cifs: fix oops during encryption CVE-2022-50403 — kernel: ext4: fix undefined behavior in bit shift for ext4_check_flag_values CVE-2023-53297 — kernel: Bluetooth: L2CAP: fix "bad unlock balance" in l2cap_disconnect_rsp CVE-2023-53322 — kernel: scsi: qla2xxx: Wait for io return on terminate rport CVE-2023-53354 — kernel: skbuff: skb_segment, Call zero copy functions before using skbuff frags CVE-2023-53365 — kernel: ip6mr: Fix skb_under_panic in ip6mr_cache_report() CVE-2023-53386 — kernel: Bluetooth: Fix potential use-after-free when clear keys CVE-2025-38718 — kernel: sctp: linearize cloned gso packets in sctp_rcv CVE-2025-38729 — kernel: ALSA: usb-audio: Validate UAC3 power domain descriptors, too CVE-2025-39757 — kernel: ALSA: usb-audio: Validate UAC3 cluster segment descriptors CVE-2025-39817 — kernel: efivarfs: Fix slab-out-of-bounds in efivarfs_d_compare CVE-2025-39883 — kernel: mm/memory-failure: fix VM_BUG_ON_PAGE(PagePoisoned(page)) when unpoison memory CVE-2025-40300 — kernel: x86/vmscape: Add conditional IBPB mitigation
🎯 Affected products74
- Red Hat Enterprise Linux BaseOS E4S (v.8.8)
- Red Hat Enterprise Linux BaseOS TUS (v.8.8)
- bpftool-0:4.18.0-477.120.1.el8_8.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
- bpftool-0:4.18.0-477.120.1.el8_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
- bpftool-0:4.18.0-477.120.1.el8_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS TUS (v.8.8)
- bpftool-debuginfo-0:4.18.0-477.120.1.el8_8.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
- bpftool-debuginfo-0:4.18.0-477.120.1.el8_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
- bpftool-debuginfo-0:4.18.0-477.120.1.el8_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS TUS (v.8.8)
- kernel-0:4.18.0-477.120.1.el8_8.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
- kernel-0:4.18.0-477.120.1.el8_8.src as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
- kernel-0:4.18.0-477.120.1.el8_8.src as a component of Red Hat Enterprise Linux BaseOS TUS (v.8.8)
- kernel-0:4.18.0-477.120.1.el8_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
- kernel-0:4.18.0-477.120.1.el8_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS TUS (v.8.8)
- kernel-abi-stablelists-0:4.18.0-477.120.1.el8_8.noarch as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
- kernel-abi-stablelists-0:4.18.0-477.120.1.el8_8.noarch as a component of Red Hat Enterprise Linux BaseOS TUS (v.8.8)
- kernel-core-0:4.18.0-477.120.1.el8_8.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
- kernel-core-0:4.18.0-477.120.1.el8_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
- kernel-core-0:4.18.0-477.120.1.el8_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS TUS (v.8.8)
- kernel-debug-0:4.18.0-477.120.1.el8_8.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
- kernel-debug-0:4.18.0-477.120.1.el8_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
- kernel-debug-0:4.18.0-477.120.1.el8_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS TUS (v.8.8)
- kernel-debug-core-0:4.18.0-477.120.1.el8_8.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
- kernel-debug-core-0:4.18.0-477.120.1.el8_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
- kernel-debug-core-0:4.18.0-477.120.1.el8_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS TUS (v.8.8)
- kernel-debug-debuginfo-0:4.18.0-477.120.1.el8_8.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
- kernel-debug-debuginfo-0:4.18.0-477.120.1.el8_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
- kernel-debug-debuginfo-0:4.18.0-477.120.1.el8_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS TUS (v.8.8)
- kernel-debug-devel-0:4.18.0-477.120.1.el8_8.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
- kernel-debug-devel-0:4.18.0-477.120.1.el8_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
- kernel-debug-devel-0:4.18.0-477.120.1.el8_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS TUS (v.8.8)
- +44 more not shown
✅ Remediation
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. Workaround: Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability. Workaround: To mitigate these vulnerabilities on the operating system level, disable the Bluetooth functionality via blocklisting kernel modules in the Linux kernel. The kernel modules can be prevented from being loaded by using system-wide modprobe rules. Instructions on how to disable Bluetooth modules are available on the customer portal at https://access.redhat.com/solutions/2682931. Alternatively, bluetooth can be disabled within the hardware or at the BIOS level, which will also provide effective mitigation as the kernel will not detect Bluetooth hardware on the system. Workaround: To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically. Workaround: To mitigate this issue IBPB each time the kernel returns to QEMU.
🔗 References (16)
- selfhttps://access.redhat.com/errata/RHSA-2025:22072
- externalhttps://access.redhat.com/security/updates/classification/#moderate
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2393164
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2393166
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2394615
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2394627
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2395681
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2395805
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2395879
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2395891
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2396130
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2396158
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2396419
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2396494
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2397553
- selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2025/rhsa-2025_22072.json