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CVE-2025-68786

UnknownEPSS 0.17%

Last modified

CVE-2025-68786 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 0.17% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability
0.17%

6.5th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= f44158485826c076335d6860d35872271a83791d, < 52fcbb92e0d3acfd1448b2a43b6595d540da5295; >= f44158485826c076335d6860d35872271a83791d, < da29cd197246c85c0473259f1cad897d9d28faea; >= f44158485826c076335d6860d35872271a83791d, < a6f4cfa3783804336491e0edcb250c25f9b59d33; >= f44158485826c076335d6860d35872271a83791d, < 571204e4758a528fbd67330bd4b0dfbdafb33dd8; >= f44158485826c076335d6860d35872271a83791d, < 5d510ac31626ed157d2182149559430350cf2104
LinuxLinux5.15

References

Timeline

Published
Last Modified
Status
Deferred

Frequently Asked Questions

What is 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 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.
How severe is CVE-2025-68786?
Severity scoring for CVE-2025-68786 is pending analysis. The EPSS model estimates a 0.17% probability of exploitation in the next 30 days.
How do I fix CVE-2025-68786?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST