ksmbd: fix SMB 3.11 posix extension mount failure

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cifs client set 4 to DataLength of create_posix context, which mean
Mode variable of create_posix context is only available. So buffer
validation of ksmbd should check only the size of Mode except for
the size of Reserved variable.

Fixes: 8f77150c15 ("ksmbd: add buffer validation for SMB2_CREATE_CONTEXT")
Cc: stable@vger.kernel.org # v5.15+
Reported-by: Steve French <smfrench@gmail.com>
Tested-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>

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Namjae Jeon 2022-01-22 10:47:22 +09:00 • committed by Steve French

parent e783362eb5

commit 9ca8581e79

1 changed files with 1 additions and 1 deletions

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fs/ksmbd/smb2pdu.c

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