ksmbd: fix slub overflow in ksmbd_decode_ntlmssp_auth_blob()

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commit 4b081ce0d8 upstream.

If authblob->SessionKey.Length is bigger than session key
size(CIFS_KEY_SIZE), slub overflow can happen in key exchange codes.
cifs_arc4_crypt copy to session key array from SessionKey from client.

Cc: stable@vger.kernel.org
Reported-by: zdi-disclosures@trendmicro.com # ZDI-CAN-21940
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Namjae Jeon 2023-08-25 23:40:31 +09:00 • committed by Greg Kroah-Hartman

parent a43bf41344

commit 7f1d6cb0eb

1 changed files with 3 additions and 0 deletions

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fs/smb/server/auth.c

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