CVE-2025-68786
Linux Kernel 5.15.0-6.1.159 6.2.0-6.6.119 6.7.0-6.12.63 6.13.0-6.18.2 - Denial of Service via Lock-Range Check Underflow
Title source: llmDescription
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 i_size (including 0), the code used to call check_lock_range(filp, i_size, size - 1, WRITE), which computes `size - 1` and can underflow for size==0. Skip the equal case.
References (5)
Core 5
Core References
Scores
EPSS
0.0005
EPSS Percentile
15.8%
Details
Status
published
Products (16)
linux/Kernel
5.15.0 - 6.1.160linux
linux/Kernel
6.13.0 - 6.18.3linux
linux/Kernel
6.2.0 - 6.6.120linux
linux/Kernel
6.7.0 - 6.12.64linux
Linux/Linux
< 5.15
Linux/Linux
5.15
Linux/Linux
6.1.160 - 6.1.*
Linux/Linux
6.12.64 - 6.12.*
Linux/Linux
6.18.3 - 6.18.*
Linux/Linux
6.19
... and 6 more
Published
Jan 13, 2026
Tracked Since
Feb 18, 2026