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ALSA-2025:18281 — Moderate: kernel security update

Affected: AlmaLinux:9: kernel, AlmaLinux:9: kernel-64k, AlmaLinux:9: kernel-64k-core, AlmaLinux:9: kernel-64k-debug, AlmaLinux:9: kernel-64k-debug-core, AlmaLinux:9: kernel-64k-debug-devel, AlmaLinux:9: kernel-64k-debug-devel-matched, AlmaLinux:9: kernel-64k-debug-modules, AlmaLinux:9: kernel-64k-debug-modules-core, AlmaLinux:9: kernel-64k-debug-modules-extra and 66 more

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

Security Fix(es):

* kernel: nfsd: don't ignore the return code of svc_proc_register() (CVE-2025-22026) * kernel: firmware: arm_scpi: Ensure scpi_info is not assigned if the probe fails (CVE-2022-50087) * kernel: sunrpc: fix client side handling of tls alerts (CVE-2025-38571) * kernel: sunrpc: fix handling of server side tls alerts (CVE-2025-38566) * kernel: efivarfs: Fix slab-out-of-bounds in efivarfs_d_compare (CVE-2025-39817) * kernel: wifi: cfg80211: sme: cap SSID length in __cfg80211_connect_result() (CVE-2025-39849) * kernel: scsi: lpfc: Fix buffer free/clear order in deferred receive path (CVE-2025-39841)

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.

bdu:2025-15170

BELL-CVE-2025-38571

Affected: Alpaquita:25: linux-lts, Alpaquita:stream: linux-lts

certfr-2025-avi-0787 — De multiples vulnérabilités ont été découvertes dans le noyau Linux de SUSE. Certaines d'entre elles permettent à un at…

certfr-2025-avi-0787

EUVD-2026-347102

fkie_cve-2025-38571

In the Linux kernel, the following vulnerability has been resolved:

sunrpc: fix client side handling of tls alerts

A security exploit was discovered in NFS over TLS in tls_alert_recv due to its assumption that there is valid data in the msghdr's iterator's kvec.

Instead, this patch proposes the rework how control messages are setup and used by sock_recvmsg().

If no control message structure is setup, kTLS layer will read and process TLS data record types. As soon as it encounters a TLS control message, it would return an error. At that point, NFS can setup a kvec backed control buffer and read in the control message such as a TLS alert. Scott found that a msg iterator can advance the kvec pointer as a part of the copy process thus we need to revert the iterator before calling into the tls_alert_recv.

GHSA-r3wq-5xjj-hj39

In the Linux kernel, the following vulnerability has been resolved:

sunrpc: fix client side handling of tls alerts

A security exploit was discovered in NFS over TLS in tls_alert_recv due to its assumption that there is valid data in the msghdr's iterator's kvec.

Instead, this patch proposes the rework how control messages are setup and used by sock_recvmsg().

msrc_CVE-2025-38571 — sunrpc: fix client side handling of tls alerts

msrc_CVE-2025-38571

openSUSE-SU-2025:20081-1 — Security update for the Linux Kernel

Security update for the Linux Kernel

RHSA-2025:18318 — Red Hat Security Advisory: kernel security update

kernel: KVM: x86/hyper-v: Skip non-canonical addresses during PV TLB flush kernel: sunrpc: fix client side handling of tls alerts kernel: ipv6: reject malicious packets in ipv6_gso_segment() kernel: eventpoll: Fix semi-unbounded recursion kernel: efivarfs: Fix slab-out-of-bounds in efivarfs_d_compare kernel: scsi: lpfc: Fix buffer free/clear order in deferred receive path

SUSE-SU-2025:03272-1 — Security update for the Linux Kernel

Security update for the Linux Kernel

UBUNTU-CVE-2025-38571

Affected: Ubuntu:16.04:LTS: linux-hwe-edge, Ubuntu:18.04:LTS: linux-aws-5.0, Ubuntu:18.04:LTS: linux-aws-5.3, Ubuntu:18.04:LTS: linux-azure, Ubuntu:18.04:LTS: linux-azure-5.3, Ubuntu:18.04:LTS: linux-azure-edge, Ubuntu:18.04:LTS: linux-gcp, Ubuntu:18.04:LTS: linux-gcp-5.3, Ubuntu:18.04:LTS: linux-gke-4.15, Ubuntu:18.04:LTS: linux-gke-5.4 and 123 more

In the Linux kernel, the following vulnerability has been resolved: sunrpc: fix client side handling of tls alerts A security exploit was discovered in NFS over TLS in tls_alert_recv due to its assumption that there is valid data in the msghdr's iterator's kvec. Instead, this patch proposes the rework how control messages are setup and used by sock_recvmsg(). If no control message structure is setup, kTLS layer will read and process TLS data record types. As soon as it encounters a TLS control message, it would return an error. At that point, NFS can setup a kvec backed control buffer and read in the control message such as a TLS alert. Scott found that a msg iterator can advance the kvec pointer as a part of the copy process thus we need to revert the iterator before calling into the tls_alert_recv.

WID-SEC-W-2025-1869 — Linux Kernel: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen im Linux-Kernel ausnutzen, um einen Denial-of-Service-Zustand zu erzeugen oder andere nicht spezifizierte Angriffe durchzuführen.