AlmaLinux alert ALSA-2026:18587 (kernel)

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[Announce]  [Security Advisory] ALSA-2026:18587: kernel security update (Moderate)
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Mon, 08 Jun 2026 00:03:19 +0000
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<0100019ea48a7d0c-cfc4371e-22d2-4266-b8f7-a73c7fd8cfbf-000000@email.amazonses.com>
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Article
Hi,

You are receiving an AlmaLinux Security update email because you subscribed to receive errata
notifications from AlmaLinux.

AlmaLinux: 9
Type: Security
Severity: Moderate
Release date: 2026-06-07

Summary:

The kernel packages contain the Linux kernel, the core of any Linux operating system.  

Security Fix(es):  

  * kernel: bonding: check xdp prog when set bond mode (CVE-2025-22105)
  * kernel: block: fix resource leak in blk_register_queue() error path (CVE-2025-37980)
  * kernel: dmaengine: idxd: fix memory leak in error handling path of idxd_alloc
(CVE-2025-38015)
  * kernel: espintcp: remove encap socket caching to avoid reference leak (CVE-2025-38097)
  * kernel: bpf: fix ktls panic with sockmap (CVE-2025-38166)
  * kernel: bpf: Do not include stack ptr register in precision backtracking bookkeeping
(CVE-2025-38279)
  * kernel: nfs: Clean up /proc/net/rpc/nfs when nfs_fs_proc_net_init() fails (CVE-2025-38400)
  * kernel: nvmet: fix memory leak of bio integrity (CVE-2025-38405)
  * kernel: netfilter: flowtable: account for Ethernet header in nf_flow_pppoe_proto()
(CVE-2025-38441)
  * kernel: net: vlan: fix VLAN 0 refcount imbalance of toggling filtering during runtime
(CVE-2025-38470)
  * kernel: fs: writeback: fix use-after-free in __mark_inode_dirty() (CVE-2025-39866)
  * kernel: dm: fix NULL pointer dereference in __dm_suspend() (CVE-2025-40134)
  * kernel: wifi: mac80211_hwsim: fix typo in frequency notification (CVE-2026-23040)
  * kernel: Linux kernel: Denial of service and memory corruption in RDMA umad (CVE-2026-23243)


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.  

Additional Changes:  

For detailed information on changes in this release, see the AlmaLinuxRelease Notes linked from the
References section.


Full details, updated packages, references, and other related information:
https://errata.almalinux.org/9/ALSA-2026-18587.html

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AlmaLinux Team
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