EUVD-2026-64545

In the Linux kernel, the following vulnerability has been resolved: smb: client: Fix use-after-free in cifstryaddingchannels cifstryaddingchannels takes a temporary reference to an interface before dropping ifacelock. If cifssesaddchannel fails, it drops that reference and then increments...

RLSA-2026:57254 Important: kernel-rt security, bug fix, and enhancement update

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fixes: kernel: net: ieee802154: do not leave a dangling sk pointer in ieee802154create CVE-2024-56602 kernel: ip6gre: Use cached t-net in...

kernel: smb: client: validate DFS referral PathConsumed

A flaw was found in the Linux kernel's Server Message Block SMB client. A remote attacker could send a specially crafted SMB response containing a malformed Distributed File System DFS referral. This could cause the PathConsumed value to exceed the search name length, leading to an out-of-bounds...

kernel: smb: client: fix query_info() replay double-free

A flaw was found in the Linux kernel's Server Message Block SMB client. This vulnerability, a double-free error, occurs when the queryinfo replay mechanism attempts to free a response buffer that has already been released. This can happen if an error occurs during the initialization of an SMB2...

kernel: smb/client: handle overlapping allocated ranges in fallocate

A flaw was found in the Linux kernel's Server Message Block SMB client. The smb3simplefallocaterange function, which manages file allocation, can incorrectly process overlapping allocated ranges provided by a server. This can result in parts of a file not being properly zero-filled, leading to...

kernel: smb: client: mask server-provided mode to 07777 in modefromsid

A flaw was found in the Linux kernel's Server Message Block SMB client. When processing server-provided file mode information, the system incorrectly applies these modes without proper security masking. This can result in unintended file permissions, potentially allowing unauthorized access to...

kernel: smb/client: fix out-of-bounds read in symlink_data()

A flaw was found in the Linux kernel's Server Message Block SMB client. This vulnerability arises from insufficient length validation in the smb2checkmessage function when processing symlink error responses. A remote attacker could exploit this by sending a specially crafted symlink error respons...

kernel: smb/client: handle overlapping allocated ranges in fallocate

A flaw was found in the Linux kernel's Server Message Block SMB client. The smb3simplefallocaterange function, which manages file allocation, can incorrectly process overlapping allocated ranges provided by a server. This can result in parts of a file not being properly zero-filled, leading to...

kernel: smb: client: fix query_info() replay double-free

A flaw was found in the Linux kernel's Server Message Block SMB client. This vulnerability, a double-free error, occurs when the queryinfo replay mechanism attempts to free a response buffer that has already been released. This can happen if an error occurs during the initialization of an SMB2...

kernel: smb: client: mask server-provided mode to 07777 in modefromsid

A flaw was found in the Linux kernel's Server Message Block SMB client. When processing server-provided file mode information, the system incorrectly applies these modes without proper security masking. This can result in unintended file permissions, potentially allowing unauthorized access to...

kernel: smb: client: fix double-free in SMB2_open() replay

A flaw was found in the Linux kernel's Server Message Block SMB client. A double-free vulnerability exists in the SMB2open replay mechanism. This occurs when a response-bearing attempt returns a replayable error and frees its response buffer, and then the cleanup process attempts to free the same...

kernel: smb/client: handle overlapping allocated ranges in fallocate

A flaw was found in the Linux kernel's Server Message Block SMB client. The smb3simplefallocaterange function, which manages file allocation, can incorrectly process overlapping allocated ranges provided by a server. This can result in parts of a file not being properly zero-filled, leading to...

kernel: smb: client: mask server-provided mode to 07777 in modefromsid

A flaw was found in the Linux kernel's Server Message Block SMB client. When processing server-provided file mode information, the system incorrectly applies these modes without proper security masking. This can result in unintended file permissions, potentially allowing unauthorized access to...

kernel: smb: client: mask server-provided mode to 07777 in modefromsid

A flaw was found in the Linux kernel's Server Message Block SMB client. When processing server-provided file mode information, the system incorrectly applies these modes without proper security masking. This can result in unintended file permissions, potentially allowing unauthorized access to...

kernel: smb/client: handle overlapping allocated ranges in fallocate

A flaw was found in the Linux kernel's Server Message Block SMB client. The smb3simplefallocaterange function, which manages file allocation, can incorrectly process overlapping allocated ranges provided by a server. This can result in parts of a file not being properly zero-filled, leading to...

Important: kernel security, bug fix, and enhancement update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: net: ieee802154: do not leave a dangling sk pointer in ieee802154create CVE-2024-56602 kernel: ip6gre: Use cached t-net in ip6erspanchangelink CVE-2026-46120 kernel: sched/psi: fix race...

RHEL 8 : kernel (RHSA-2026:57253)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:57253 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: net: ieee802154: do not leave...

Linux Distros Unpatched Vulnerability : CVE-2026-72310

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - smb: client: fix overflow in passthrough ioctl bounds check smb2ioctlqueryinfo validates the PASSTHRUFSCTL response payload before copying it to userspace. The...

Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.4-2026-128 (ALASKERNEL-5.4-2026-128)

The version of kernel installed on the remote host is prior to 5.4.302-224.477. It is, therefore, affected by a vulnerability as referenced in the ALAS2KERNEL-5.4-2026-128 advisory. In the Linux kernel, the following vulnerability has been resolved: smb: client: mask server-provided mode to 07777...

Medium: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: smb: client: mask server-provided mode to 07777 in modefromsid CVE-2026-64379 Affected Packages: kernel Note: This advisory is applicable to Amazon Linux 2 - Kernel-5.4 Extra. Visit this page to learn more about...