- Issued:
- 2026-03-03
- Updated:
- 2026-03-03
RHSA-2026:3685 - Important: kernel security update
Synopsis
Important: kernel security update
Type/Severity
Security Advisory Important
Topic
An update for kernel is now available for Red Hat Enterprise Linux 7 Extended Lifecycle Support.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Description
The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
-
kernel: Linux kernel: Memory corruption in Squashfs due to incorrect block size calculation (CVE-2025-38415)
-
kernel: Linux kernel: Denial of Service in ATM CLIP module via infinite recursion (CVE-2025-38459)
-
kernel: Linux kernel: Denial of Service via out-of-bounds read in USB configuration parsing (CVE-2025-39760)
-
kernel: efivarfs: Fix slab-out-of-bounds in efivarfs_d_compare (CVE-2025-39817)
-
kernel: media: rc: fix races with imon_disconnect() (CVE-2025-39993)
-
kernel: Linux kernel: Use-after-free in proc_readdir_de() can lead to privilege escalation or denial of service. (CVE-2025-40271)
-
kernel: ext4: fix use-after-free in ext4_orphan_cleanup (CVE-2022-50673)
-
kernel: NFSv4/pNFS: Clear NFS_INO_LAYOUTCOMMIT in pnfs_mark_layout_stateid_invalid (CVE-2025-68349)
-
kernel: Linux kernel: Use-after-free in teql queueing discipline can lead to privilege escalation (CVE-2026-23074)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Solution
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.
Affected Products
| Product | Version | Arch |
|---|---|---|
| Red Hat Enterprise Linux Server - Extended Life Cycle Support | 7 | x86_64 |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, little endian | 7 | ppc64le |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, big endian | 7 | ppc64 |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) | 7 | s390x |
Updated Packages
- kernel-debug-3.10.0-1160.147.1.el7.ppc64le.rpm
- kernel-tools-3.10.0-1160.147.1.el7.x86_64.rpm
- kernel-debuginfo-3.10.0-1160.147.1.el7.x86_64.rpm
- perf-3.10.0-1160.147.1.el7.x86_64.rpm
- kernel-headers-3.10.0-1160.147.1.el7.ppc64le.rpm
- python-perf-3.10.0-1160.147.1.el7.x86_64.rpm
- kernel-bootwrapper-3.10.0-1160.147.1.el7.ppc64.rpm
- python-perf-3.10.0-1160.147.1.el7.ppc64.rpm
- python-perf-debuginfo-3.10.0-1160.147.1.el7.ppc64.rpm
- bpftool-debuginfo-3.10.0-1160.147.1.el7.ppc64.rpm
- perf-debuginfo-3.10.0-1160.147.1.el7.ppc64.rpm
- kernel-3.10.0-1160.147.1.el7.ppc64.rpm
- kernel-bootwrapper-3.10.0-1160.147.1.el7.ppc64le.rpm
- kernel-tools-3.10.0-1160.147.1.el7.ppc64.rpm
- kernel-devel-3.10.0-1160.147.1.el7.ppc64le.rpm
- kernel-devel-3.10.0-1160.147.1.el7.s390x.rpm
- kernel-kdump-3.10.0-1160.147.1.el7.s390x.rpm
- kernel-devel-3.10.0-1160.147.1.el7.ppc64.rpm
- kernel-debuginfo-common-ppc64-3.10.0-1160.147.1.el7.ppc64.rpm
- kernel-debug-devel-3.10.0-1160.147.1.el7.ppc64le.rpm
- python-perf-debuginfo-3.10.0-1160.147.1.el7.s390x.rpm
- kernel-3.10.0-1160.147.1.el7.s390x.rpm
- kernel-tools-debuginfo-3.10.0-1160.147.1.el7.ppc64.rpm
- kernel-3.10.0-1160.147.1.el7.src.rpm
- perf-3.10.0-1160.147.1.el7.ppc64le.rpm
- python-perf-3.10.0-1160.147.1.el7.s390x.rpm
- python-perf-3.10.0-1160.147.1.el7.ppc64le.rpm
- bpftool-debuginfo-3.10.0-1160.147.1.el7.x86_64.rpm
- bpftool-3.10.0-1160.147.1.el7.ppc64.rpm
- kernel-doc-3.10.0-1160.147.1.el7.noarch.rpm
- kernel-tools-libs-3.10.0-1160.147.1.el7.ppc64.rpm
- kernel-tools-libs-3.10.0-1160.147.1.el7.x86_64.rpm
- bpftool-3.10.0-1160.147.1.el7.x86_64.rpm
- kernel-tools-debuginfo-3.10.0-1160.147.1.el7.x86_64.rpm
- python-perf-debuginfo-3.10.0-1160.147.1.el7.ppc64le.rpm
- bpftool-debuginfo-3.10.0-1160.147.1.el7.ppc64le.rpm
- kernel-debuginfo-3.10.0-1160.147.1.el7.ppc64le.rpm
- kernel-debug-3.10.0-1160.147.1.el7.ppc64.rpm
- kernel-debug-devel-3.10.0-1160.147.1.el7.s390x.rpm
- kernel-abi-whitelists-3.10.0-1160.147.1.el7.noarch.rpm
- kernel-headers-3.10.0-1160.147.1.el7.s390x.rpm
- kernel-debuginfo-common-s390x-3.10.0-1160.147.1.el7.s390x.rpm
- kernel-debug-debuginfo-3.10.0-1160.147.1.el7.s390x.rpm
- kernel-debug-devel-3.10.0-1160.147.1.el7.x86_64.rpm
- python-perf-debuginfo-3.10.0-1160.147.1.el7.x86_64.rpm
- kernel-kdump-debuginfo-3.10.0-1160.147.1.el7.s390x.rpm
- kernel-debuginfo-3.10.0-1160.147.1.el7.s390x.rpm
- kernel-debuginfo-common-ppc64le-3.10.0-1160.147.1.el7.ppc64le.rpm
- kernel-3.10.0-1160.147.1.el7.x86_64.rpm
- kernel-devel-3.10.0-1160.147.1.el7.x86_64.rpm
- perf-debuginfo-3.10.0-1160.147.1.el7.x86_64.rpm
- kernel-debug-devel-3.10.0-1160.147.1.el7.ppc64.rpm
- perf-3.10.0-1160.147.1.el7.ppc64.rpm
- kernel-debug-3.10.0-1160.147.1.el7.x86_64.rpm
- kernel-tools-libs-devel-3.10.0-1160.147.1.el7.ppc64.rpm
- perf-3.10.0-1160.147.1.el7.s390x.rpm
- kernel-debug-3.10.0-1160.147.1.el7.s390x.rpm
- bpftool-debuginfo-3.10.0-1160.147.1.el7.s390x.rpm
- kernel-headers-3.10.0-1160.147.1.el7.ppc64.rpm
- perf-debuginfo-3.10.0-1160.147.1.el7.s390x.rpm
- kernel-debuginfo-common-x86_64-3.10.0-1160.147.1.el7.x86_64.rpm
- kernel-tools-libs-3.10.0-1160.147.1.el7.ppc64le.rpm
- kernel-3.10.0-1160.147.1.el7.ppc64le.rpm
- bpftool-3.10.0-1160.147.1.el7.ppc64le.rpm
- kernel-debug-debuginfo-3.10.0-1160.147.1.el7.ppc64le.rpm
- kernel-debug-debuginfo-3.10.0-1160.147.1.el7.x86_64.rpm
- kernel-kdump-devel-3.10.0-1160.147.1.el7.s390x.rpm
- kernel-tools-3.10.0-1160.147.1.el7.ppc64le.rpm
- kernel-debuginfo-3.10.0-1160.147.1.el7.ppc64.rpm
- perf-debuginfo-3.10.0-1160.147.1.el7.ppc64le.rpm
- kernel-headers-3.10.0-1160.147.1.el7.x86_64.rpm
- kernel-debug-debuginfo-3.10.0-1160.147.1.el7.ppc64.rpm
- kernel-tools-debuginfo-3.10.0-1160.147.1.el7.ppc64le.rpm
- kernel-tools-libs-devel-3.10.0-1160.147.1.el7.ppc64le.rpm
- kernel-tools-libs-devel-3.10.0-1160.147.1.el7.x86_64.rpm
- bpftool-3.10.0-1160.147.1.el7.s390x.rpm
Fixes
- This content is not included.BZ - 2383404
- This content is not included.BZ - 2383487
- This content is not included.BZ - 2394601
- This content is not included.BZ - 2395805
- This content is not included.BZ - 2404121
- This content is not included.BZ - 2419837
- This content is not included.BZ - 2420347
- This content is not included.BZ - 2424880
- This content is not included.BZ - 2436791
CVEs
- CVE-2022-50673
- CVE-2025-38415
- CVE-2025-38459
- CVE-2025-39760
- CVE-2025-39817
- CVE-2025-39993
- CVE-2025-40271
- CVE-2025-68349
- CVE-2026-23074
References
Additional information
- The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
- Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.