Red Hat Security Advisory: kernel security update
🔗 CVE IDs covered (10)
📋 Description
CVE-2023-53539 — kernel: RDMA/rxe: Fix incomplete state save in rxe_requester CVE-2023-53552 — kernel: drm/i915: mark requests for GuC virtual engines to avoid use-after-free CVE-2023-53581 — kernel: net/mlx5e: Check for NOT_READY flag state after locking CVE-2025-38051 — kernel: smb: client: Fix use-after-free in cifs_fill_dirent CVE-2025-39898 — kernel: e1000e: fix heap overflow in e1000_set_eeprom CVE-2025-39971 — kernel: i40e: fix idx validation in config queues msg CVE-2025-39973 — kernel: i40e: add validation for ring_len param CVE-2025-39993 — kernel: media: rc: fix races with imon_disconnect() CVE-2025-40248 — kernel: Linux kernel: vsock vulnerability may lead to memory corruption CVE-2025-40277 — kernel: drm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE
🎯 Affected products74
- Red Hat Enterprise Linux BaseOS E4S (v.8.8)
- Red Hat Enterprise Linux BaseOS TUS (v.8.8)
- bpftool-0:4.18.0-477.126.1.el8_8.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
- bpftool-0:4.18.0-477.126.1.el8_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
- bpftool-0:4.18.0-477.126.1.el8_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS TUS (v.8.8)
- bpftool-debuginfo-0:4.18.0-477.126.1.el8_8.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
- bpftool-debuginfo-0:4.18.0-477.126.1.el8_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
- bpftool-debuginfo-0:4.18.0-477.126.1.el8_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS TUS (v.8.8)
- kernel-0:4.18.0-477.126.1.el8_8.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
- kernel-0:4.18.0-477.126.1.el8_8.src as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
- kernel-0:4.18.0-477.126.1.el8_8.src as a component of Red Hat Enterprise Linux BaseOS TUS (v.8.8)
- kernel-0:4.18.0-477.126.1.el8_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
- kernel-0:4.18.0-477.126.1.el8_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS TUS (v.8.8)
- kernel-abi-stablelists-0:4.18.0-477.126.1.el8_8.noarch as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
- kernel-abi-stablelists-0:4.18.0-477.126.1.el8_8.noarch as a component of Red Hat Enterprise Linux BaseOS TUS (v.8.8)
- kernel-core-0:4.18.0-477.126.1.el8_8.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
- kernel-core-0:4.18.0-477.126.1.el8_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
- kernel-core-0:4.18.0-477.126.1.el8_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS TUS (v.8.8)
- kernel-debug-0:4.18.0-477.126.1.el8_8.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
- kernel-debug-0:4.18.0-477.126.1.el8_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
- kernel-debug-0:4.18.0-477.126.1.el8_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS TUS (v.8.8)
- kernel-debug-core-0:4.18.0-477.126.1.el8_8.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
- kernel-debug-core-0:4.18.0-477.126.1.el8_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
- kernel-debug-core-0:4.18.0-477.126.1.el8_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS TUS (v.8.8)
- kernel-debug-debuginfo-0:4.18.0-477.126.1.el8_8.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
- kernel-debug-debuginfo-0:4.18.0-477.126.1.el8_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
- kernel-debug-debuginfo-0:4.18.0-477.126.1.el8_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS TUS (v.8.8)
- kernel-debug-devel-0:4.18.0-477.126.1.el8_8.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
- kernel-debug-devel-0:4.18.0-477.126.1.el8_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
- kernel-debug-devel-0:4.18.0-477.126.1.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: To mitigate this issue, prevent the rdma_rxe module from being loaded. See https://access.redhat.com/solutions/41278 for instructions on blacklisting kernel modules. Workaround: To mitigate this issue, prevent the i915 module from loading. See https://access.redhat.com/solutions/41278 for instructions on blacklisting kernel modules. Workaround: To mitigate this issue, prevent the mlx5_core module from loading. See https://access.redhat.com/solutions/41278 for instructions on blacklisting kernel modules. 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: 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 this issue, prevent module vmwgfx from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.
🔗 References (12)
- selfhttps://access.redhat.com/errata/RHSA-2026:1445
- externalhttps://access.redhat.com/security/updates/classification/#important
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2373329
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2400598
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2401510
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2401514
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2401545
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2404108
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2404121
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2418872
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2419954
- selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_1445.json