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s3:smbd: make sure smbXsrv_session_update() doesn't segfault with table == NULL

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There might be other places than smb2srv_update_crypto_flags(), which
may call smbXsrv_session_update() with a fake session, they should
return in error instead of segfaulting.

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This commit is contained in:
Stefan Metzmacher 2021-07-14 17:15:52 +02:00
parent aa29d89942
commit 1781910df6
1 changed files with 7 additions and 0 deletions
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7
source3/smbd/smbXsrv_session.c
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@ -1426,6 +1426,13 @@ NTSTATUS smbXsrv_session_update(struct smbXsrv_session *session)
return NT_STATUS_INTERNAL_ERROR;
}
if (table == NULL) {
DEBUG(0, ("smbXsrv_session_update(0x%08x): "
"Called with table == NULL'\n",
session->global->session_global_id));
return NT_STATUS_INTERNAL_ERROR;
}
session->global->db_rec = smbXsrv_session_global_fetch_locked(
table->global.db_ctx,
session->global->session_global_id,