Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: ksmbd: The lock-range check for files with equal size is skipped, to avoid underflow when size == 0. When size equals the current isize including 0, the code that calls checklockrangefilp, isize, size - 1, WRITE will compute size...

ksmbd: skip lock-range check on equal size to avoid size==0 underflow

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SUSE 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...

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...

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...

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...

UBUNTU-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...

CVE-2025-68786

CVE-2025-68786 affects the Linux kernel ksmbd code path. When i_size equals the requested size (including 0), the prior check_lock_range call used size-1 and could underflow, which is mitigated by skipping the equal-size case. The issue is resolved in upstream kernel 6.6.120, and Mageia advisorie...

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...

CVE-2025-68786 ksmbd: skip lock-range check on equal size to avoid size==0 underflow

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...

CVE-2025-68786 ksmbd: skip lock-range check on equal size to avoid size==0 underflow

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-2025-68786

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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,...

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 stems from a lock range check in ksmbd when size equals isize could result in an integer underflow...

PT-2026-2518

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Linux kernel’s ksmbd module where a size underflow can occur during a lock-range check when the size equals the current file size, including zero. This happens becau...