CVE-2026-68100 ksmbd: validate num_subauth when copying ACE in set_ntacl_dacl

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate numsubauth when copying ACE in setntacldacl setntacldacl copies each ACE from the attacker-controlled stored security descriptor verbatim into the response DACL without checking sid.numsubauth. The ACE bytes...

CVE-2026-52944

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix FSCTL permission bypass by adding a permission check for FSCTLSETSPARSE FSCTLSETSPARSE in fsctlsetsparse modifies the file's sparse attribute and saves it through xattr without any permission checks. This exposes two...

CVE-2026-23093

In the Linux kernel, the following vulnerability has been resolved: ksmbd: smbd: fix dmaunmapsg nents The dmaunmapsg functions should be called with the same nents as the dmamapsg, not the value the map function returned...

CVE-2025-68786

In the Linux kernel, the following vulnerability has been resolved: ksmbd: skip lock-range check on equal size to avoid size==0 underflow When size equals the current isize including 0, the code used to call checklockrangefilp, isize, size - 1, WRITE, which computes size - 1 and can underflow for...

Linux Distros Unpatched Vulnerability : CVE-2023-32253

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A flaw was found in the Linux kernel's ksmbd component. A deadlock is triggered by sending multiple concurrent session setup requests, possibly leading to a...

USN-6724-1 linux, linux-aws, linux-azure, linux-azure-6.5, linux-gcp, linux-gcp-6.5, linux-hwe-6.5, linux-laptop, linux-lowlatency, linux-lowlatency-hwe-6.5, linux-oem-6.5, linux-oracle, linux-oracle-6.5, linux-starfive, linux-starfive-6.5 vulnerabilities

Pratyush Yadav discovered that the Xen network backend implementation in the Linux kernel did not properly handle zero length data request, leading to a null pointer dereference vulnerability. An attacker in a guest VM could possibly use this to cause a denial of service host domain crash...