ksmbd: add validation in smb2 negotiate

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This patch add validation to check request buffer check in smb2
negotiate and fix null pointer deferencing oops in smb3_preauth_hash_rsp()
that found from manual test.

Cc: Tom Talpey <tom@talpey.com>
Cc: Ronnie Sahlberg <ronniesahlberg@gmail.com>
Cc: Ralph Böhme <slow@samba.org>
Cc: Hyunchul Lee <hyc.lee@gmail.com>
Cc: Sergey Senozhatsky <senozhatsky@chromium.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>

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Namjae Jeon 2021-09-29 15:44:32 +09:00 • committed by Steve French

parent 9496e268e3

commit 442ff9ebeb

2 changed files with 68 additions and 6 deletions

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42

fs/ksmbd/smb2pdu.c

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32

fs/ksmbd/smb_common.c

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