CVE-2023-52441

ksmbd: fix out of bounds in init_smb2_rsp_hdr()

EPSS 0.4%

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix out of bounds in init_smb2_rsp_hdr() If client send smb2 negotiate request and then send smb1 negotiate request, init_smb2_rsp_hdr is called for smb1 negotiate request since need_neg is set to false. This patch ignore smb1 packets after ->need_neg is set to false.

Affected products

Linux · Linux

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References

https://git.kernel.org/stable/c/330d900620dfc9893011d725b3620cd2ee0bc2bc https://git.kernel.org/stable/c/536bb492d39bb6c080c92f31e8a55fe9934f452b https://git.kernel.org/stable/c/5c0df9d30c289d6b9d7d44e2a450de2f8e3cf40b https://git.kernel.org/stable/c/aa669ef229ae8dd779da9caa24e254964545895f