CVE-2026-23156 efivarfs: fix error propagation in efivar_entry_get()

In the Linux kernel, the following vulnerability has been resolved: efivarfs: fix error propagation in efivarentryget efivarentryget always returns success even if the underlying efivarentryget fails, masking errors. This may result in uninitialized heap memory being copied to userspace in the...

CVE-2026-23156

CVE-2026-23156 affects Linux kernel efivarfs: efivar_entry_get() may return success even if __efivar_entry_get() fails, potentially enabling uninitialized heap data to be copied to userspace via efivarfs_file_read(). The root cause is error propagation being suppressed; the fix is to return the e...

kernel: efivarfs: Fix slab-out-of-bounds in efivarfs_d_compare

A slab-out-of-bounds exists in the linux kernel in efivarfsdcompare, such that the issue can be triggered by parallel lookups using an invalid filename due to an incorrect memcmp function...

CLSA-2026-1770040438 kernel: Fix of 14 CVEs

efivarfs: Fix slab-out-of-bounds in efivarfsdcompare CVE-2025-39817 - scsi: ses: Fix possible descptr out-of-bounds accesses CVE-2023-53675 - ipv6: Fix out-of-bounds access in ipv6findtlv CVE-2023-53705 - libceph: fix potential use-after-free in havemonandosdmap CVE-2025-68285 - scsi: lpfc: Fix...

CLSA-2026-1770028764 kernel: Fix of 14 CVEs

efivarfs: Fix slab-out-of-bounds in efivarfsdcompare CVE-2025-39817 - scsi: ses: Fix possible descptr out-of-bounds accesses CVE-2023-53675 - ipv6: Fix out-of-bounds access in ipv6findtlv CVE-2023-53705 - libceph: fix potential use-after-free in havemonandosdmap CVE-2025-68285 - scsi: lpfc: Fix...

CLSA-2026-1770028389 kernel: Fix of 14 CVEs

efivarfs: Fix slab-out-of-bounds in efivarfsdcompare CVE-2025-39817 - scsi: ses: Fix possible descptr out-of-bounds accesses CVE-2023-53675 - ipv6: Fix out-of-bounds access in ipv6findtlv CVE-2023-53705 - libceph: fix potential use-after-free in havemonandosdmap CVE-2025-68285 - scsi: lpfc: Fix...

MiracleLinux 8 : kernel-4.18.0-553.16.1.el8_10 (AXSA:2024-8704:25)

The remote MiracleLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2024-8704:25 advisory. kernel: powerpc: Fix access beyond end of drmem array CVE-2023-52451 kernel: efivarfs: force RO when remounting if SetVariable is not supported...

CVE-2025-71106

In the Linux kernel, the following vulnerability has been resolved: fs: PM: Fix reverse check in filesystemsfreezecallback The freezeallptr check in filesystemsfreezecallback introduced by commit a3f8f8662771 "power: always freeze efivarfs" is reverse which quite confusingly causes all file syste...

Important: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerabilit...

kernel: efivarfs: Fix slab-out-of-bounds in efivarfs_d_compare

A slab-out-of-bounds exists in the linux kernel in efivarfsdcompare, such that the issue can be triggered by parallel lookups using an invalid filename due to an incorrect memcmp function...

MiracleLinux 8 : kernel-4.18.0-553.81.1.el8_10 (AXSA:2025-11004:84)

The remote MiracleLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2025-11004:84 advisory. kernel: Bluetooth: L2CAP: fix bad unlock balance in l2capdisconnectrsp CVE-2023-53297 kernel: efivarfs: Fix slab-out-of-bounds in efivarfsdcompare...

MiracleLinux 9 : kernel-5.14.0-611.9.1.el9_7 (AXSA:2025-11506:95)

The remote MiracleLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2025-11506:95 advisory. kernel: firmware: armscpi: Ensure scpiinfo is not assigned if the probe fails CVE-2022-50087 kernel: sunrpc: fix client side handling of tls alerts...

PT-2026-8151

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the Linux kernel where the efivar entry get function does not properly propagate errors from the efivar entry get function. This can lead to uninitialized heap memory...

Important: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 8.2 Advanced Update 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...

kernel: efivarfs: Fix slab-out-of-bounds in efivarfs_d_compare

A slab-out-of-bounds exists in the linux kernel in efivarfsdcompare, such that the issue can be triggered by parallel lookups using an invalid filename due to an incorrect memcmp function...

RHEL 8 : kernel (RHSA-2025:23445)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:23445 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: ALSA: usb-audio: ALSA USB Aud...

The vulnerability of the efivarfs component in the Linux operating system allows a hacker to trigger a service failure.

The vulnerability of the efivarfs component in the Linux operating system is related to reading data beyond the allowed limits of the data buffer. Exploiting this vulnerability allows an attacker to cause a service failure...

Oracle Linux 10 : kernel (ELSA-2025-21931)

The remote Oracle Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2025-21931 advisory. - fs/smb: Fix inconsistent refcnt update Paulo Alcantara RHEL-124955 CVE-2025-39819 - tcp: Clear tcpsksk-fastopenrsk in tcpdisconnect. Antoine Tenart...

The vulnerability of the efivarfs component in the Linux operating system allows a hacker to trigger a service failure.

The vulnerability of the efivarfs component in the Linux operating system is related to incorrect initialization of the resource. Exploiting this vulnerability allows an attacker to cause a service failure...

Oracle Linux 9 : kernel (ELSA-2025-21112)

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2025-21112 advisory. - crypto: xts - Handle EBUSY correctly Vladis Dronov RHEL-119236 CVE-2023-53494 - ipv6: sr: Fix MAC comparison to be constant-time CKI Backport Bot...