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CVE-2023-3865

ksmbd: fix out-of-bound read in smb2_write

EPSS 0.5%
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 · Linux

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References
https://git.kernel.org/stable/c/3813eee5154d6a4c5875cb4444cb2b63bac8947fhttps://git.kernel.org/stable/c/58a9c41064df27632e780c5a3ae3e0e4284957d1https://git.kernel.org/stable/c/5fe7f7b78290638806211046a99f031ff26164e1https://git.kernel.org/stable/c/c86211159bc3178b891e0d60e586a32c7b6a231b