Red Hat Security Advisory: kernel security update
🔗 CVE IDs covered (12)
📋 Description
CVE-2021-47495 — kernel: usbnet: sanity check for maxpacket CVE-2023-52622 — kernel: ext4: avoid online resizing failures due to oversized flex bg CVE-2023-52703 — kernel: net/usb: kalmia: Don't pass act_len in usb_bulk_msg error path CVE-2023-52840 — kernel: Input: synaptics-rmi4 - fix use after free in rmi_unregister_function() CVE-2024-26901 — kernel: do_sys_name_to_handle(): use kzalloc() to fix kernel-infoleak CVE-2024-26907 — kernel: RDMA/mlx5: Fix fortify source warning while accessing Eth segment CVE-2024-26973 — kernel: fat: fix uninitialized field in nostale filehandles CVE-2024-27013 — kernel: tun: limit printing rate when illegal packet received by tun dev CVE-2024-35946 — kernel: wifi: rtw89: fix null pointer access when abort scan CVE-2024-57876 — kernel: drm/dp_mst: Fix resetting msg rx state after topology removal CVE-2025-21756 — kernel: vsock: Keep the binding until socket destruction CVE-2025-37749 — kernel: net: ppp: Add bound checking for skb data on ppp_sync_txmung
🎯 Affected products200
- Red Hat CodeReady Linux Builder EUS (v.9.4)
- Red Hat Enterprise Linux AppStream EUS (v.9.4)
- Red Hat Enterprise Linux BaseOS EUS (v.9.4)
- Red Hat Enterprise Linux Real Time EUS (v.9.4)
- Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4)
- bpftool-0:7.3.0-427.70.1.el9_4.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
- bpftool-0:7.3.0-427.70.1.el9_4.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
- bpftool-0:7.3.0-427.70.1.el9_4.s390x as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
- bpftool-0:7.3.0-427.70.1.el9_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
- bpftool-debuginfo-0:7.3.0-427.70.1.el9_4.aarch64 as a component of Red Hat CodeReady Linux Builder EUS (v.9.4)
- bpftool-debuginfo-0:7.3.0-427.70.1.el9_4.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
- bpftool-debuginfo-0:7.3.0-427.70.1.el9_4.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
- bpftool-debuginfo-0:7.3.0-427.70.1.el9_4.ppc64le as a component of Red Hat CodeReady Linux Builder EUS (v.9.4)
- bpftool-debuginfo-0:7.3.0-427.70.1.el9_4.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
- bpftool-debuginfo-0:7.3.0-427.70.1.el9_4.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
- bpftool-debuginfo-0:7.3.0-427.70.1.el9_4.s390x as a component of Red Hat CodeReady Linux Builder EUS (v.9.4)
- bpftool-debuginfo-0:7.3.0-427.70.1.el9_4.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
- bpftool-debuginfo-0:7.3.0-427.70.1.el9_4.s390x as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
- bpftool-debuginfo-0:7.3.0-427.70.1.el9_4.x86_64 as a component of Red Hat CodeReady Linux Builder EUS (v.9.4)
- bpftool-debuginfo-0:7.3.0-427.70.1.el9_4.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
- bpftool-debuginfo-0:7.3.0-427.70.1.el9_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
- bpftool-debuginfo-0:7.3.0-427.70.1.el9_4.x86_64 as a component of Red Hat Enterprise Linux Real Time EUS (v.9.4)
- bpftool-debuginfo-0:7.3.0-427.70.1.el9_4.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4)
- kernel-0:5.14.0-427.70.1.el9_4.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
- kernel-0:5.14.0-427.70.1.el9_4.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
- kernel-0:5.14.0-427.70.1.el9_4.s390x as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
- kernel-0:5.14.0-427.70.1.el9_4.src as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
- kernel-0:5.14.0-427.70.1.el9_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
- kernel-64k-0:5.14.0-427.70.1.el9_4.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
- kernel-64k-core-0:5.14.0-427.70.1.el9_4.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
- +170 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 do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability. Workaround: To mitigate this issue, prevent module vsock from being loaded. Please see https://access.redhat.com/solutions/41278 for information on how to blacklist a kernel module to prevent it from loading automatically. Workaround: No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.
🔗 References (15)
- selfhttps://access.redhat.com/errata/RHSA-2025:8248
- externalhttps://access.redhat.com/security/updates/classification/#important
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2271688
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2275633
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2275645
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2278270
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2278356
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2281833
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2282612
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2282757
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2282920
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2337142
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2348609
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2363332
- selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2025/rhsa-2025_8248.json