CVE-2025-68786
N/A
N/A
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | f44158485826c076335d6860d35872271a83791d < 52fcbb92e0d3acfd1448b2a43b6595d540da5295 | affected |
| Linux | Linux | f44158485826c076335d6860d35872271a83791d < da29cd197246c85c0473259f1cad897d9d28faea | affected |
| Linux | Linux | f44158485826c076335d6860d35872271a83791d < a6f4cfa3783804336491e0edcb250c25f9b59d33 | affected |
| Linux | Linux | f44158485826c076335d6860d35872271a83791d < 571204e4758a528fbd67330bd4b0dfbdafb33dd8 | affected |
| Linux | Linux | f44158485826c076335d6860d35872271a83791d < 5d510ac31626ed157d2182149559430350cf2104 | affected |
| Linux | Linux | 5.15 | affected |
| Linux | Linux | 0 < 5.15 | unaffected |
| Linux | Linux | 6.1.160 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.120 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.64 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.3 <= 6.18.* | unaffected |
| Linux | Linux | 6.19 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/52fcbb92e0d3acfd1448b2a43b6595d540da5295
- https://git.kernel.org/stable/c/da29cd197246c85c0473259f1cad897d9d28faea
- https://git.kernel.org/stable/c/a6f4cfa3783804336491e0edcb250c25f9b59d33
- https://git.kernel.org/stable/c/571204e4758a528fbd67330bd4b0dfbdafb33dd8
- https://git.kernel.org/stable/c/5d510ac31626ed157d2182149559430350cf2104
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.