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Linux Kernel Update: Fix Security Flaws and Improve Performance
published 4 months ago
Summary
This update addresses several security flaws in the Linux kernel, which could lead to denial of service or unauthorized access. It also fixes a performance issue that caused kernel panics in certain situations. You should update your Linux system to this latest kernel version to ensure you have the latest security patches and performance improvements.
What to do
- Update almalinux bpftool to version 4.18.0-553.136.1.el8_10.
- Update almalinux kernel to version 4.18.0-553.136.1.el8_10.
- Update almalinux kernel-abi-stablelists to version 4.18.0-553.136.1.el8_10.
- Update almalinux kernel-core to version 4.18.0-553.136.1.el8_10.
- Update almalinux kernel-cross-headers to version 4.18.0-553.136.1.el8_10.
- Update almalinux kernel-debug to version 4.18.0-553.136.1.el8_10.
- Update almalinux kernel-debug-core to version 4.18.0-553.136.1.el8_10.
- Update almalinux kernel-debug-devel to version 4.18.0-553.136.1.el8_10.
- Update almalinux kernel-debug-modules to version 4.18.0-553.136.1.el8_10.
- Update almalinux kernel-debug-modules-extra to version 4.18.0-553.136.1.el8_10.
- Update almalinux kernel-devel to version 4.18.0-553.136.1.el8_10.
- Update almalinux kernel-doc to version 4.18.0-553.136.1.el8_10.
- Update almalinux kernel-headers to version 4.18.0-553.136.1.el8_10.
- Update almalinux kernel-modules to version 4.18.0-553.136.1.el8_10.
- Update almalinux kernel-modules-extra to version 4.18.0-553.136.1.el8_10.
- Update almalinux kernel-tools to version 4.18.0-553.136.1.el8_10.
- Update almalinux kernel-tools-libs to version 4.18.0-553.136.1.el8_10.
- Update almalinux kernel-tools-libs-devel to version 4.18.0-553.136.1.el8_10.
- Update almalinux kernel-zfcpdump to version 4.18.0-553.136.1.el8_10.
- Update almalinux kernel-zfcpdump-core to version 4.18.0-553.136.1.el8_10.
- Update almalinux kernel-zfcpdump-devel to version 4.18.0-553.136.1.el8_10.
- Update almalinux kernel-zfcpdump-modules to version 4.18.0-553.136.1.el8_10.
- Update almalinux kernel-zfcpdump-modules-extra to version 4.18.0-553.136.1.el8_10.
- Update almalinux perf to version 4.18.0-553.136.1.el8_10.
- Update almalinux python3-perf to version 4.18.0-553.136.1.el8_10.
Affected software
| Ecosystem | Vendor | Product | Affected versions |
|---|---|---|---|
| AlmaLinux:8 | almalinux | bpftool |
< 4.18.0-553.136.1.el8_10 Fix: upgrade to 4.18.0-553.136.1.el8_10
|
| AlmaLinux:8 | almalinux | kernel |
< 4.18.0-553.136.1.el8_10 Fix: upgrade to 4.18.0-553.136.1.el8_10
|
| AlmaLinux:8 | almalinux | kernel-abi-stablelists |
< 4.18.0-553.136.1.el8_10 Fix: upgrade to 4.18.0-553.136.1.el8_10
|
| AlmaLinux:8 | almalinux | kernel-core |
< 4.18.0-553.136.1.el8_10 Fix: upgrade to 4.18.0-553.136.1.el8_10
|
| AlmaLinux:8 | almalinux | kernel-cross-headers |
< 4.18.0-553.136.1.el8_10 Fix: upgrade to 4.18.0-553.136.1.el8_10
|
| AlmaLinux:8 | almalinux | kernel-debug |
< 4.18.0-553.136.1.el8_10 Fix: upgrade to 4.18.0-553.136.1.el8_10
|
| AlmaLinux:8 | almalinux | kernel-debug-core |
< 4.18.0-553.136.1.el8_10 Fix: upgrade to 4.18.0-553.136.1.el8_10
|
| AlmaLinux:8 | almalinux | kernel-debug-devel |
< 4.18.0-553.136.1.el8_10 Fix: upgrade to 4.18.0-553.136.1.el8_10
|
| AlmaLinux:8 | almalinux | kernel-debug-modules |
< 4.18.0-553.136.1.el8_10 Fix: upgrade to 4.18.0-553.136.1.el8_10
|
| AlmaLinux:8 | almalinux | kernel-debug-modules-extra |
< 4.18.0-553.136.1.el8_10 Fix: upgrade to 4.18.0-553.136.1.el8_10
|
| AlmaLinux:8 | almalinux | kernel-devel |
< 4.18.0-553.136.1.el8_10 Fix: upgrade to 4.18.0-553.136.1.el8_10
|
| AlmaLinux:8 | almalinux | kernel-doc |
< 4.18.0-553.136.1.el8_10 Fix: upgrade to 4.18.0-553.136.1.el8_10
|
| AlmaLinux:8 | almalinux | kernel-headers |
< 4.18.0-553.136.1.el8_10 Fix: upgrade to 4.18.0-553.136.1.el8_10
|
| AlmaLinux:8 | almalinux | kernel-modules |
< 4.18.0-553.136.1.el8_10 Fix: upgrade to 4.18.0-553.136.1.el8_10
|
| AlmaLinux:8 | almalinux | kernel-modules-extra |
< 4.18.0-553.136.1.el8_10 Fix: upgrade to 4.18.0-553.136.1.el8_10
|
| AlmaLinux:8 | almalinux | kernel-tools |
< 4.18.0-553.136.1.el8_10 Fix: upgrade to 4.18.0-553.136.1.el8_10
|
| AlmaLinux:8 | almalinux | kernel-tools-libs |
< 4.18.0-553.136.1.el8_10 Fix: upgrade to 4.18.0-553.136.1.el8_10
|
| AlmaLinux:8 | almalinux | kernel-tools-libs-devel |
< 4.18.0-553.136.1.el8_10 Fix: upgrade to 4.18.0-553.136.1.el8_10
|
| AlmaLinux:8 | almalinux | kernel-zfcpdump |
< 4.18.0-553.136.1.el8_10 Fix: upgrade to 4.18.0-553.136.1.el8_10
|
| AlmaLinux:8 | almalinux | kernel-zfcpdump-core |
< 4.18.0-553.136.1.el8_10 Fix: upgrade to 4.18.0-553.136.1.el8_10
|
| AlmaLinux:8 | almalinux | kernel-zfcpdump-devel |
< 4.18.0-553.136.1.el8_10 Fix: upgrade to 4.18.0-553.136.1.el8_10
|
| AlmaLinux:8 | almalinux | kernel-zfcpdump-modules |
< 4.18.0-553.136.1.el8_10 Fix: upgrade to 4.18.0-553.136.1.el8_10
|
| AlmaLinux:8 | almalinux | kernel-zfcpdump-modules-extra |
< 4.18.0-553.136.1.el8_10 Fix: upgrade to 4.18.0-553.136.1.el8_10
|
| AlmaLinux:8 | almalinux | perf |
< 4.18.0-553.136.1.el8_10 Fix: upgrade to 4.18.0-553.136.1.el8_10
|
| AlmaLinux:8 | almalinux | python3-perf |
< 4.18.0-553.136.1.el8_10 Fix: upgrade to 4.18.0-553.136.1.el8_10
|
Original advisory text
Important: kernel security, bug fix, and enhancement update
The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* kernel: Linux kernel: Use-after-free in bonding driver leads to denial of service (CVE-2026-31419)
* kernel: drm/amd/display: Do not skip unrelated mode changes in DSC validation (CVE-2026-31488)
* kernel: net: mana: fix use-after-free in add_adev() error path (CVE-2026-43056)
* kernel: ALSA: usb-audio: Add sanity check for OOB writes at silencing (CVE-2026-43279)
* kernel: net/sched: act_pedit: extend the writable skb range per key (CVE-2026-46331)
* kernel: ALSA: aloop: Fix peer runtime UAF during format-change stop (CVE-2026-46090)
* kernel: RDMA/mana: Validate rx_hash_key_len (CVE-2026-46145)
* kernel: nvmet-tcp: fix race between ICReq handling and queue teardown (CVE-2026-46135)
Bug Fix(es) and Enhancement(s):
* AlmaLinux8 RT kernel panic in replenish_dl_entity() caused by stale DEADLINE PI state during rt_mutex de-boosting (JIRA:AlmaLinux-178520)
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.
Security Fix(es):
* kernel: Linux kernel: Use-after-free in bonding driver leads to denial of service (CVE-2026-31419)
* kernel: drm/amd/display: Do not skip unrelated mode changes in DSC validation (CVE-2026-31488)
* kernel: net: mana: fix use-after-free in add_adev() error path (CVE-2026-43056)
* kernel: ALSA: usb-audio: Add sanity check for OOB writes at silencing (CVE-2026-43279)
* kernel: net/sched: act_pedit: extend the writable skb range per key (CVE-2026-46331)
* kernel: ALSA: aloop: Fix peer runtime UAF during format-change stop (CVE-2026-46090)
* kernel: RDMA/mana: Validate rx_hash_key_len (CVE-2026-46145)
* kernel: nvmet-tcp: fix race between ICReq handling and queue teardown (CVE-2026-46135)
Bug Fix(es) and Enhancement(s):
* AlmaLinux8 RT kernel panic in replenish_dl_entity() caused by stale DEADLINE PI state during rt_mutex de-boosting (JIRA:AlmaLinux-178520)
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.
References
- https://access.redhat.com/errata/RHSA-2026:27353 Vendor Advisory
- https://access.redhat.com/security/cve/CVE-2026-31419 Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2026-31488 Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2026-43056 Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2026-43279 Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2026-46090 Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2026-46135 Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2026-46145 Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2026-46331 Third Party Advisory
- https://bugzilla.redhat.com/2457829 Third Party Advisory
- https://bugzilla.redhat.com/2460619 Third Party Advisory
- https://bugzilla.redhat.com/2464449 Third Party Advisory
- https://bugzilla.redhat.com/2467215 Third Party Advisory
- https://bugzilla.redhat.com/2479492 Third Party Advisory
- https://bugzilla.redhat.com/2481980 Third Party Advisory
- https://bugzilla.redhat.com/2482581 Third Party Advisory
- https://bugzilla.redhat.com/2482654 Third Party Advisory
- https://errata.almalinux.org/8/ALSA-2026-27353.html Vendor Advisory
Timeline
Published19 Jun 2026
Updated22 Jun 2026
First seen22 Jun 2026
Sources
ALSA-2026:27353 · OSV
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