PT-2026-72680

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the ksmbd module. The function same client has lease returns an opinfo pointer from ci-m op list after releasing ci-m lock without acquiring a reference...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ksmbd: The use-of-memory issue was fixed by using callrcu for oplockinfo. Currently, ksmbd frees oplockinfo immediately using kfree, even though it is accessed during critical sections of the RCU read-side, such as in functions...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: ksmbd: Fixed issues with use-after-free and NULL dereferencing in smbgrantoplock. smbgrantoplock has two issues in the oplock publication sequence: 1 opinfo is linked into ci-moplist via opinfoadd before addleasegloballist is...

SUSE CVE-2026-43376

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free by using callrcu for oplockinfo ksmbd currently frees oplockinfo immediately using kfree, even though it is accessed under RCU read-side critical sections in places like opinfoget and procshowfiles. Sinc...

CVE-2026-43376

A flaw was found in ksmbd in the Linux kernel. The oplockinfo structure is immediately freed using kfree without an RCU Read-Copy-Update grace period, even though it can still be accessed by readers. This improper memory deallocation can lead to a use-after-free vulnerability, particularly in the...

EUVD-2026-28682

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free by using callrcu for oplockinfo ksmbd currently frees oplockinfo immediately using kfree, even though it is accessed under RCU read-side critical sections in places like opinfoget and procshowfiles. Sinc...

CVE-2026-43376

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free by using callrcu for oplockinfo ksmbd currently frees oplockinfo immediately using kfree, even though it is accessed under RCU read-side critical sections in places like opinfoget and procshowfiles. Sinc...

CVE-2026-43376

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free by using callrcu for oplockinfo ksmbd currently frees oplockinfo immediately using kfree, even though it is accessed under RCU read-side critical sections in places like opinfoget and procshowfiles. Sinc...

UBUNTU-CVE-2026-43376

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free by using callrcu for oplockinfo ksmbd currently frees oplockinfo immediately using kfree, even though it is accessed under RCU read-side critical sections in places like opinfoget and procshowfiles. Sinc...

CVE-2026-43376

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free by using callrcu for oplockinfo ksmbd currently frees oplockinfo immediately using kfree, even though it is accessed under RCU read-side critical sections in places like opinfoget and procshowfiles. Sinc...

CVE-2026-43376 ksmbd: fix use-after-free by using call_rcu() for oplock_info

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free by using callrcu for oplockinfo ksmbd currently frees oplockinfo immediately using kfree, even though it is accessed under RCU read-side critical sections in places like opinfoget and procshowfiles. Sinc...

CVE-2026-43376 ksmbd: fix use-after-free by using call_rcu() for oplock_info

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free by using callrcu for oplockinfo ksmbd currently frees oplockinfo immediately using kfree, even though it is accessed under RCU read-side critical sections in places like opinfoget and procshowfiles. Sinc...

CVE-2026-43376

CVE-2026-43376 affects ksmbd in the Linux kernel. The vulnerability arises from freeing oplock_info with kfree() while it can still be accessed under RCU read-side critical sections (e.g., opinfo_get), allowing a use-after-free. The fixes across connected reports switch to deferred freeing via ca...

CVE-2026-43376

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free by using callrcu for oplockinfo ksmbd currently frees oplockinfo immediately using kfree, even though it is accessed under RCU read-side critical sections in places like opinfoget and procshowfiles. Sinc...

Linux Kernel Security Vulnerabilities

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from ksmbd releasing the oplockinfo immediately during critical sections like opinfoget and...

Exploit for CVE-2026-31717

CVE-2026-31717: ksmbd DHnC Durable-Handle Reconnect Access-Con...

Linux Distros Unpatched Vulnerability : CVE-2026-31444

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ksmbd: fix use-after-free and NULL deref in smbgrantoplock smbgrantoplock has two issues in the oplock publication sequence: 1 opinfo is linked into ci-moplist...

ksmbd: fix use-after-free and NULL deref in smb_grant_oplock()

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SUSE CVE-2026-31444

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free and NULL deref in smbgrantoplock smbgrantoplock has two issues in the oplock publication sequence: 1 opinfo is linked into ci-moplist via opinfoadd before addleasegloballist is called. If...

CVE-2026-31444

A flaw was found in ksmbd, a component of the Linux kernel. This vulnerability involves a use-after-free and a NULL pointer dereference within the smbgrantoplock function during the oplock publication sequence. An attacker could potentially exploit these issues, leading to memory corruption. This...