OESA-2026-1759 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: In the Linux kernel, the following vulnerability has been resolved: iommu/s390: Implement blocking domain This fixes a crash when surprise hot-unplugging a PCI device. This crash happens because during hot-unplug...

Azure Linux 3.0 Security Update: kernel (CVE-2025-37954)

The version of kernel installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2025-37954 advisory. - In the Linux kernel, the following vulnerability has been resolved: smb: client: Avoid race in opencacheddir...

Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP4 kernel was updated to receive various security bugfixes. The following security bugs were fixed: CVE-2022-50116: kernel: tty: ngsm: fix deadlock and link starvation in outgoing data path bsc1244824. CVE-2024-53177: smb: prevent use-after-free due to opencacheddir...

SUSE CVE-2025-68226

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix incomplete backport in cfidsinvalidationworker The previous commit bdb596ceb4b7 "smb: client: fix potential UAF in smb2closecachedfid" was an incomplete backport and missed one krefput call in...

EUVD-2025-203670

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix incomplete backport in cfidsinvalidationworker The previous commit bdb596ceb4b7 "smb: client: fix potential UAF in smb2closecachedfid" was an incomplete backport and missed one krefput call in...

CVE-2025-68226

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix incomplete backport in cfidsinvalidationworker The previous commit bdb596ceb4b7 "smb: client: fix potential UAF in smb2closecachedfid" was an incomplete backport and missed one krefput call in...

CVE-2025-68226 smb: client: fix incomplete backport in cfids_invalidation_worker()

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix incomplete backport in cfidsinvalidationworker The previous commit bdb596ceb4b7 "smb: client: fix potential UAF in smb2closecachedfid" was an incomplete backport and missed one krefput call in...

CVE-2025-68226

The connected sources confirm a concrete Linux kernel issue in the SMB client: an incomplete backport in cfids_invalidation_worker() caused by a missed kref_put() path, which should have been converted to close_cached_dir(). This is tied to the previously published fix for smb2_close_cached_fid()...

Linux Distros Unpatched Vulnerability : CVE-2025-37954

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - smb: client: Avoid race in opencacheddir with lease breaks A pre-existing valid cfid returned from findorcreatecacheddir might race with a lease break, meaning...

smb: client: Avoid race in open_cached_dir with lease breaks

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Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: smb: client: Avoid race conditions in opencacheddir when leases are broken. A previously valid cfid returned from findorcreatecacheddir might cause a race condition with a lease break. As a result, opencacheddir may not consid...

SUSE CVE-2025-37954

In the Linux kernel, the following vulnerability has been resolved: smb: client: Avoid race in opencacheddir with lease breaks A pre-existing valid cfid returned from findorcreatecacheddir might race with a lease break, meaning opencacheddir doesn't consider it valid, and thinks it's...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that originates from the smb client opencacheddir competing with a lease interrupt...

SUSE CVE-2024-53177

In the Linux kernel, the following vulnerability has been resolved: smb: prevent use-after-free due to opencacheddir error paths If opencacheddir encounters an error parsing the lease from the server, the error handling may race with receiving a lease break, resulting in opencacheddir freeing the...

SUSE CVE-2024-53178

In the Linux kernel, the following vulnerability has been resolved: smb: Don't leak cfid when reconnect races with opencacheddir opencacheddir may either race with the tcon reconnection even before compoundsendrecv or directly trigger a reconnection via SMB2openinit or SMBqueryinfoinit. The...

DEBIAN-CVE-2024-53176

In the Linux kernel, the following vulnerability has been resolved: smb: During unmount, ensure all cached dir instances drop their dentry The unmount process cifskillsb calling closeallcacheddirs can race with various cached directory operations, which ultimately results in dentries not being...

CVE-2024-53177 smb: prevent use-after-free due to open_cached_dir error paths

In the Linux kernel, the following vulnerability has been resolved: smb: prevent use-after-free due to opencacheddir error paths If opencacheddir encounters an error parsing the lease from the server, the error handling may race with receiving a lease break, resulting in opencacheddir freeing the...

PT-2024-37042

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The issue relates to the SMB system in the Linux kernel. It involves the initialization of cfid-tcon before performing network operations to avoid leaking a tcon reference when a lease...

PT-2024-35623

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.12.0-rc6 Description A use-after-free vulnerability has been identified in the Linux kernel, specifically in the open cached dir function. This vulnerability occurs when open cached dir encounters an error...

PT-2024-35624

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The issue is related to a memory leak in the Linux kernel's SMB functionality. Specifically, when the open cached dir function races with the tcon reconnection, it can lead to a memory...