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 18A481AC8AE; Thu, 15 Aug 2024 13:47:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723729642; cv=none; b=tTli9nIcHxJC51iY7TDenkOtInXk24mYAjCBfyxjeNSk0di3ywScwiK5bMHTMnjTfAFcjnqGdNwE9Y4CpAWEFFhm3q/Yulf3AK5R9Na8SODJVLElKC5ztR+Gc+xhmIBmeHjQTejLxcqRUvBsbnnGPvc3nRfCo1N0lw0hAQ7zm64= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723729642; c=relaxed/simple; bh=JUeMhs1b7poknWbXaDRKAPbx3WS1jcIhcwgJi84AI0s=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=CnNAaxIkdzYFvvweWUOKkf/Sg2qvobxLCTVb+V2CwUBA7FKrlLU/bxwx9W6fQXt+Q6WeumkvcFYqMBASUFuZKLMJ+qsJ90pK55GI1yw4xdAcOtiUPDfh6h+vcxzACdYY2vHIadRlHVrdJmF2lmRP+r/JwwLwW3yj4sDLRcEby8A= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=qRL/9T7u; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="qRL/9T7u" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8407DC32786; Thu, 15 Aug 2024 13:47:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1723729642; bh=JUeMhs1b7poknWbXaDRKAPbx3WS1jcIhcwgJi84AI0s=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=qRL/9T7udJ+cz++68ECqZqb/lGAfHJaErMxvvaH1/lb6LFM6U5baGl4+PmhBJre47 toMB4LOSxeR13RTzIDm3CCacfVbYBLNHGJn8V93BZqziLunfYEuhtBN1j81u0fitkX /toQZiz4DH+xl7LDLh7bExlS1PdWTo+KVYkIA2fg= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Konstantin Komarov , Sasha Levin Subject: [PATCH 5.15 161/484] fs/ntfs3: Fix field-spanning write in INDEX_HDR Date: Thu, 15 Aug 2024 15:20:19 +0200 Message-ID: <20240815131947.630673643@linuxfoundation.org> X-Mailer: git-send-email 2.46.0 In-Reply-To: <20240815131941.255804951@linuxfoundation.org> References: <20240815131941.255804951@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Konstantin Komarov [ Upstream commit 2f3e176fee66ac86ae387787bf06457b101d9f7a ] Fields flags and res[3] replaced with one 4 byte flags. Fixes: 4534a70b7056 ("fs/ntfs3: Add headers and misc files") Signed-off-by: Konstantin Komarov Signed-off-by: Sasha Levin --- fs/ntfs3/index.c | 4 ++-- fs/ntfs3/ntfs.h | 9 +++++---- 2 files changed, 7 insertions(+), 6 deletions(-) diff --git a/fs/ntfs3/index.c b/fs/ntfs3/index.c index a069ae7a748ef..13f492d0d971f 100644 --- a/fs/ntfs3/index.c +++ b/fs/ntfs3/index.c @@ -979,7 +979,7 @@ static struct indx_node *indx_new(struct ntfs_index *indx, hdr->used = cpu_to_le32(eo + sizeof(struct NTFS_DE) + sizeof(u64)); de_set_vbn_le(e, *sub_vbn); - hdr->flags = 1; + hdr->flags = NTFS_INDEX_HDR_HAS_SUBNODES; } else { e->size = cpu_to_le16(sizeof(struct NTFS_DE)); hdr->used = cpu_to_le32(eo + sizeof(struct NTFS_DE)); @@ -1684,7 +1684,7 @@ static int indx_insert_into_root(struct ntfs_index *indx, struct ntfs_inode *ni, e->size = cpu_to_le16(sizeof(struct NTFS_DE) + sizeof(u64)); e->flags = NTFS_IE_HAS_SUBNODES | NTFS_IE_LAST; - hdr->flags = 1; + hdr->flags = NTFS_INDEX_HDR_HAS_SUBNODES; hdr->used = hdr->total = cpu_to_le32(new_root_size - offsetof(struct INDEX_ROOT, ihdr)); diff --git a/fs/ntfs3/ntfs.h b/fs/ntfs3/ntfs.h index b992ec42a1d92..625f2b52bd586 100644 --- a/fs/ntfs3/ntfs.h +++ b/fs/ntfs3/ntfs.h @@ -686,14 +686,15 @@ static inline bool de_has_vcn_ex(const struct NTFS_DE *e) offsetof(struct ATTR_FILE_NAME, name) + \ NTFS_NAME_LEN * sizeof(short), 8) +#define NTFS_INDEX_HDR_HAS_SUBNODES cpu_to_le32(1) + struct INDEX_HDR { __le32 de_off; // 0x00: The offset from the start of this structure // to the first NTFS_DE. __le32 used; // 0x04: The size of this structure plus all // entries (quad-word aligned). __le32 total; // 0x08: The allocated size of for this structure plus all entries. - u8 flags; // 0x0C: 0x00 = Small directory, 0x01 = Large directory. - u8 res[3]; + __le32 flags; // 0x0C: 0x00 = Small directory, 0x01 = Large directory. // // de_off + used <= total @@ -740,7 +741,7 @@ static inline struct NTFS_DE *hdr_next_de(const struct INDEX_HDR *hdr, static inline bool hdr_has_subnode(const struct INDEX_HDR *hdr) { - return hdr->flags & 1; + return hdr->flags & NTFS_INDEX_HDR_HAS_SUBNODES; } struct INDEX_BUFFER { @@ -760,7 +761,7 @@ static inline bool ib_is_empty(const struct INDEX_BUFFER *ib) static inline bool ib_is_leaf(const struct INDEX_BUFFER *ib) { - return !(ib->ihdr.flags & 1); + return !(ib->ihdr.flags & NTFS_INDEX_HDR_HAS_SUBNODES); } /* Index root structure ( 0x90 ). */ -- 2.43.0