From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 81E37FBE7 for ; Mon, 15 May 2023 16:46:21 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id E3EDFC433D2; Mon, 15 May 2023 16:46:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1684169181; bh=ssgSVG3ia+fo3vsUV4rKrbwTfMtiCcmBF3U9aWDIi3Q=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=VSMsY1l9/mL/UUNK+K55VqlPHCCc6UL6xY+EVrzVk4FOSIhEbuJjduxH4qvGLgqqD DSyEjqpwJmL9ieeuSNuVUpb1oe9TwDVYcdpDOitcpT3V5d2NbC1kYYAVizQ0fOeKAH 3dkz0yB0q8WdLZ/cjCEmGPcMhU4zaQsYpPZ2vqdk= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Pawel Witek , Steve French Subject: [PATCH 4.19 169/191] cifs: fix pcchunk length type in smb2_copychunk_range Date: Mon, 15 May 2023 18:26:46 +0200 Message-Id: <20230515161713.567518267@linuxfoundation.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230515161707.203549282@linuxfoundation.org> References: <20230515161707.203549282@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Pawel Witek commit d66cde50c3c868af7abddafce701bb86e4a93039 upstream. Change type of pcchunk->Length from u32 to u64 to match smb2_copychunk_range arguments type. Fixes the problem where performing server-side copy with CIFS_IOC_COPYCHUNK_FILE ioctl resulted in incomplete copy of large files while returning -EINVAL. Fixes: 9bf0c9cd4314 ("CIFS: Fix SMB2/SMB3 Copy offload support (refcopy) for large files") Cc: Signed-off-by: Pawel Witek Signed-off-by: Steve French Signed-off-by: Greg Kroah-Hartman --- fs/cifs/smb2ops.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/fs/cifs/smb2ops.c +++ b/fs/cifs/smb2ops.c @@ -1180,7 +1180,7 @@ smb2_copychunk_range(const unsigned int pcchunk->SourceOffset = cpu_to_le64(src_off); pcchunk->TargetOffset = cpu_to_le64(dest_off); pcchunk->Length = - cpu_to_le32(min_t(u32, len, tcon->max_bytes_chunk)); + cpu_to_le32(min_t(u64, len, tcon->max_bytes_chunk)); /* Request server copy to target from src identified by key */ kfree(retbuf);