High severity7.1NVD Advisory· Published Aug 16, 2025· Updated Jun 17, 2026

CVE-2023-3865

Description

In the Linux kernel, the following vulnerability has been resolved:

ksmbd: fix out-of-bound read in smb2_write

ksmbd_smb2_check_message doesn't validate hdr->NextCommand. If ->NextCommand is bigger than Offset + Length of smb2 write, It will allow oversized smb2 write length. It will cause OOB read in smb2_write.

Affected products

Linux/Kernelllm-fuzzy2 versions
(expand)+ 1 more
- (no CPE)
- (no CPE)range: 5.15

Patches

Vulnerability mechanics

References

git.kernel.org/stable/c/3813eee5154d6a4c5875cb4444cb2b63bac8947fnvdPatch
git.kernel.org/stable/c/58a9c41064df27632e780c5a3ae3e0e4284957d1nvdPatch
git.kernel.org/stable/c/5fe7f7b78290638806211046a99f031ff26164e1nvdPatch
git.kernel.org/stable/c/c86211159bc3178b891e0d60e586a32c7b6a231bnvdPatch

News mentions

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