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AlmaLinux real-time kernel packages may allow system compromise

published 2 years ago
Summary

The real‑time Linux kernel packages for AlmaLinux have several flaws that could let attackers crash the system, read private data, or run code with high privileges. Update to the latest kernel‑rt releases as soon as possible to apply the fixes. If you manage AlmaLinux servers, ensure your package manager installs the newest kernel‑rt, kernel‑rt‑core, kernel‑rt‑debug, kernel‑rt‑debug‑core, and kernel‑rt‑debug‑devel updates.

What to do
  • Update almalinux kernel-rt to version 4.18.0-553.16.1.rt7.357.el8_10.
  • Update almalinux kernel-rt-core to version 4.18.0-553.16.1.rt7.357.el8_10.
  • Update almalinux kernel-rt-debug to version 4.18.0-553.16.1.rt7.357.el8_10.
  • Update almalinux kernel-rt-debug-core to version 4.18.0-553.16.1.rt7.357.el8_10.
  • Update almalinux kernel-rt-debug-devel to version 4.18.0-553.16.1.rt7.357.el8_10.
  • Update almalinux kernel-rt-debug-kvm to version 4.18.0-553.16.1.rt7.357.el8_10.
  • Update almalinux kernel-rt-debug-modules to version 4.18.0-553.16.1.rt7.357.el8_10.
  • Update almalinux kernel-rt-debug-modules-extra to version 4.18.0-553.16.1.rt7.357.el8_10.
  • Update almalinux kernel-rt-devel to version 4.18.0-553.16.1.rt7.357.el8_10.
  • Update almalinux kernel-rt-kvm to version 4.18.0-553.16.1.rt7.357.el8_10.
  • Update almalinux kernel-rt-modules to version 4.18.0-553.16.1.rt7.357.el8_10.
  • Update almalinux kernel-rt-modules-extra to version 4.18.0-553.16.1.rt7.357.el8_10.
Affected software
Ecosystem VendorProductAffected versions
AlmaLinux:8 almalinux kernel-rt < 4.18.0-553.16.1.rt7.357.el8_10
Fix: upgrade to 4.18.0-553.16.1.rt7.357.el8_10
AlmaLinux:8 almalinux kernel-rt-core < 4.18.0-553.16.1.rt7.357.el8_10
Fix: upgrade to 4.18.0-553.16.1.rt7.357.el8_10
AlmaLinux:8 almalinux kernel-rt-debug < 4.18.0-553.16.1.rt7.357.el8_10
Fix: upgrade to 4.18.0-553.16.1.rt7.357.el8_10
AlmaLinux:8 almalinux kernel-rt-debug-core < 4.18.0-553.16.1.rt7.357.el8_10
Fix: upgrade to 4.18.0-553.16.1.rt7.357.el8_10
AlmaLinux:8 almalinux kernel-rt-debug-devel < 4.18.0-553.16.1.rt7.357.el8_10
Fix: upgrade to 4.18.0-553.16.1.rt7.357.el8_10
AlmaLinux:8 almalinux kernel-rt-debug-kvm < 4.18.0-553.16.1.rt7.357.el8_10
Fix: upgrade to 4.18.0-553.16.1.rt7.357.el8_10
AlmaLinux:8 almalinux kernel-rt-debug-modules < 4.18.0-553.16.1.rt7.357.el8_10
Fix: upgrade to 4.18.0-553.16.1.rt7.357.el8_10
AlmaLinux:8 almalinux kernel-rt-debug-modules-extra < 4.18.0-553.16.1.rt7.357.el8_10
Fix: upgrade to 4.18.0-553.16.1.rt7.357.el8_10
AlmaLinux:8 almalinux kernel-rt-devel < 4.18.0-553.16.1.rt7.357.el8_10
Fix: upgrade to 4.18.0-553.16.1.rt7.357.el8_10
AlmaLinux:8 almalinux kernel-rt-kvm < 4.18.0-553.16.1.rt7.357.el8_10
Fix: upgrade to 4.18.0-553.16.1.rt7.357.el8_10
AlmaLinux:8 almalinux kernel-rt-modules < 4.18.0-553.16.1.rt7.357.el8_10
Fix: upgrade to 4.18.0-553.16.1.rt7.357.el8_10
AlmaLinux:8 almalinux kernel-rt-modules-extra < 4.18.0-553.16.1.rt7.357.el8_10
Fix: upgrade to 4.18.0-553.16.1.rt7.357.el8_10
Original advisory text
Important: kernel-rt security update
The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

* kernel: efivarfs: force RO when remounting if SetVariable is not supported (CVE-2023-52463)
* kernel: tracing: Restructure trace_clock_global() to never block (CVE-2021-46939)
* kernel: ext4: avoid online resizing failures due to oversized flex bg (CVE-2023-52622)
* kernel: net/sched: flower: Fix chain template offload (CVE-2024-26669)
* kernel: stmmac: Clear variable when destroying workqueue (CVE-2024-26802)
* kernel: efi: runtime: Fix potential overflow of soft-reserved region size (CVE-2024-26843)
* kernel: quota: Fix potential NULL pointer dereference (CVE-2024-26878)
* kernel: TIPC message reassembly use-after-free remote code execution vulnerability (CVE-2024-36886)
* kernel: SUNRPC: fix a memleak in gss_import_v2_context (CVE-2023-52653)
* kernel: dmaengine/idxd: hardware erratum allows potential security problem with direct access by untrusted application (CVE-2024-21823)
* kernel: ext4: fix corruption during on-line resize (CVE-2024-35807)
* kernel: x86/fpu: Keep xfd_state in sync with MSR_IA32_XFD (CVE-2024-35801)
* kernel: dyndbg: fix old BUG_ON in &gt;control parser (CVE-2024-35947)
* kernel: net/sched: act_skbmod: prevent kernel-infoleak (CVE-2024-35893)
* kernel: x86/mce: Make sure to grab mce_sysfs_mutex in set_bank() (CVE-2024-35876)
* kernel: platform/x86: wmi: Fix opening of char device (CVE-2023-52864)
* kernel: tipc: Change nla_policy for bearer-related names to NLA_NUL_STRING (CVE-2023-52845)
* kernel: Revert "net/mlx5: Block entering switchdev mode with ns inconsistency" (CVE-2023-52658)
* kernel: crash due to a missing check for leb_size (CVE-2024-25739)
* kernel: tcp: make sure init the accept_queue&#39;s spinlocks once (CVE-2024-26614)
* kernel: tcp: add sanity checks to rx zerocopy (CVE-2024-26640)
* kernel: NFSv4.2: fix nfs4_listxattr kernel BUG at mm/usercopy.c:102 (CVE-2024-26870)
* kernel: nfs: fix UAF in direct writes (CVE-2024-26958)
* kernel: SUNRPC: fix some memleaks in gssx_dec_option_array (CVE-2024-27388)
* kernel: wifi: iwlwifi: mvm: don&#39;t set the MFP flag for the GTK (CVE-2024-27434)
* kernel: of: Fix double free in of_parse_phandle_with_args_map (CVE-2023-52679)
* kernel: scsi: lpfc: Fix possible memory leak in lpfc_rcv_padisc() (CVE-2024-35930)
* kernel: wifi: iwlwifi: mvm: rfi: fix potential response leaks (CVE-2024-35912)
* kernel: block: prevent division by zero in blk_rq_stat_sum() (CVE-2024-35925)
* kernel: wifi: ath11k: decrease MHI channel buffer length to 8KB (CVE-2024-35938)
* kernel: wifi: cfg80211: check A-MSDU format more carefully (CVE-2024-35937)
* kernel: wifi: rtw89: fix null pointer access when abort scan (CVE-2024-35946)
* kernel: netfilter: nf_tables: honor table dormant flag from netdev release event path (CVE-2024-36005)
* kernel: mm/hugetlb: fix missing hugetlb_lock for resv uncharge (CVE-2024-36000)
* kernel: mlxsw: spectrum_acl_tcam: Fix incorrect list API usage (CVE-2024-36006)
* kernel: net: ieee802154: fix null deref in parse dev addr (CVE-2021-47257)
* kernel: mmc: sdio: fix possible resource leaks in some error paths (CVE-2023-52730)
* kernel: wifi: ath11k: fix gtk offload status event locking (CVE-2023-52777)
* (CVE-2023-52832)
* (CVE-2023-52803)
* (CVE-2023-52756)
* (CVE-2023-52834)
* (CVE-2023-52791)
* (CVE-2023-52764)
* (CVE-2021-47468)
* (CVE-2021-47284)
* (CVE-2024-36025)
* (CVE-2024-36941)
* (CVE-2024-36940)
* (CVE-2024-36904)
* (CVE-2024-36896)
* (CVE-2024-36954)
* (CVE-2024-36950)
* (CVE-2024-38575)
* (CVE-2024-36917)
* (CVE-2024-36016)
* (CVE-2023-52762)
* (CVE-2024-27025)
* (CVE-2021-47548)
* (CVE-2023-52619)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer the CVE page(s) listed in the References section.
References
Timeline
Published8 Aug 2024
Updated29 Oct 2026
First seen29 Oct 2026
Sources
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