FAILED: patch "[PATCH] cifs: Fix uninitialized memory reads for oparms.mode" failed to apply to 5.10-stable tree

PATCH [email protected] 1 participant 1 message Mar 6, 2023 Stable branch

Share & tools

[email protected]

author maintainer

2023-03-06 10:55 UTC #0 lore raw

The patch below does not apply to the 5.10-stable tree.
If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <[email protected]>.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.10.y
git checkout FETCH_HEAD
git cherry-pick -x de036dcaca65cf94bf7ff09c571c077f02bc92b4
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<[email protected]>' --in-reply-to '[email protected]' --subject-prefix 'PATCH 5.10.y' HEAD^..

Possible dependencies:

de036dcaca65 ("cifs: Fix uninitialized memory reads for oparms.mode") a152d05ae4a7 ("cifs: Fix uninitialized memory read for smb311 posix symlink create") ba5d4c1596ca ("cifs: fix file info setting in cifs_open_file()")
29cf28235e3e ("cifs: fix file info setting in cifs_query_path_info()") 76894f3e2f71 ("cifs: improve symlink handling for smb2+")
a63ec83c462b ("cifs: Add constructor/destructors for tcon->cfid")
dcb45fd7f501 ("cifs: Do not use tcon->cfid directly, use the cfid we get from open_cached_dir") 05b98fd2da6b ("cifs: Move cached-dir functions into a separate file") fb157ed226d2 ("cifs: when insecure legacy is disabled shrink amount of SMB1 code") d7d7a66aacd6 ("cifs: avoid use of global locks for high contention data") 9543c8ab3016 ("cifs: list_for_each() -> list_for_each_entry()")
4da2cd0517e0 ("cifs: remove redundant initialization to variable mnt_sign_enabled") af3a6d1018f0 ("cifs: update cifs_ses::ip_addr after failover")
b54034a73baf ("cifs: during reconnect, update interface if necessary") 387ba9bf4cb8 ("cifs: do not build smb1ops if legacy support is disabled") cc391b694ff0 ("cifs: fix potential deadlock in direct reclaim")
44a48081fc03 ("smb3: remove unneeded null check in cifs_readdir")
d87c48ce4d89 ("cifs: cache the dirents for entries in a cached directory") 5752bf645f9d ("cifs: avoid parallel session setups on same channel") dd3cd8709ed5 ("cifs: use new enum for ses_status")

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From de036dcaca65cf94bf7ff09c571c077f02bc92b4 Mon Sep 17 00:00:00 2001
From: Volker Lendecke <[email protected]>
Date: Wed, 11 Jan 2023 12:37:58 +0100
Subject: [PATCH] cifs: Fix uninitialized memory reads for oparms.mode

Use a struct assignment with implicit member initialization

Signed-off-by Volker Lendecke <[email protected]>

Cc [email protected]

Signed-off-by Steve French <[email protected]>

fs/cifs/cached_dir.c +7 -6

index 60399081046a..b36ae64034a3 100644
@@ -181,12 +181,13 @@ int open_cached_dir(unsigned int xid, struct cifs_tcon *tcon,
 	rqst[0].rq_iov = open_iov;
 	rqst[0].rq_nvec = SMB2_CREATE_IOV_SIZE;
 
-	oparms.tcon = tcon;
-	oparms.create_options = cifs_create_options(cifs_sb, CREATE_NOT_FILE);
-	oparms.desired_access = FILE_READ_ATTRIBUTES;
-	oparms.disposition = FILE_OPEN;
-	oparms.fid = pfid;
-	oparms.reconnect = false;
+	oparms = (struct cifs_open_parms) {
+		.tcon = tcon,
+		.create_options = cifs_create_options(cifs_sb, CREATE_NOT_FILE),
+		.desired_access = FILE_READ_ATTRIBUTES,
+		.disposition = FILE_OPEN,
+		.fid = pfid,
+	};
 
 	rc = SMB2_open_init(tcon, server,
 			    &rqst[0], &oplock, &oparms, utf16_path);

fs/cifs/cifsacl.c +18 ~~-16~~

index bbf58c2439da..3cc3471199f5 100644
@@ -1428,14 +1428,15 @@ static struct cifs_ntsd *get_cifs_acl_by_path(struct cifs_sb_info *cifs_sb,
 	tcon = tlink_tcon(tlink);
 	xid = get_xid();
 
-	oparms.tcon = tcon;
-	oparms.cifs_sb = cifs_sb;
-	oparms.desired_access = READ_CONTROL;
-	oparms.create_options = cifs_create_options(cifs_sb, 0);
-	oparms.disposition = FILE_OPEN;
-	oparms.path = path;
-	oparms.fid = &fid;
-	oparms.reconnect = false;
+	oparms = (struct cifs_open_parms) {
+		.tcon = tcon,
+		.cifs_sb = cifs_sb,
+		.desired_access = READ_CONTROL,
+		.create_options = cifs_create_options(cifs_sb, 0),
+		.disposition = FILE_OPEN,
+		.path = path,
+		.fid = &fid,
+	};
 
 	rc = CIFS_open(xid, &oparms, &oplock, NULL);
 	if (!rc) {

@@ -1494,14 +1495,15 @@ int set_cifs_acl(struct cifs_ntsd *pnntsd, __u32 acllen,
 	else
 		access_flags = WRITE_DAC;
 
-	oparms.tcon = tcon;
-	oparms.cifs_sb = cifs_sb;
-	oparms.desired_access = access_flags;
-	oparms.create_options = cifs_create_options(cifs_sb, 0);
-	oparms.disposition = FILE_OPEN;
-	oparms.path = path;
-	oparms.fid = &fid;
-	oparms.reconnect = false;
+	oparms = (struct cifs_open_parms) {
+		.tcon = tcon,
+		.cifs_sb = cifs_sb,
+		.desired_access = access_flags,
+		.create_options = cifs_create_options(cifs_sb, 0),
+		.disposition = FILE_OPEN,
+		.path = path,
+		.fid = &fid,
+	};
 
 	rc = CIFS_open(xid, &oparms, &oplock, NULL);
 	if (rc) {

fs/cifs/cifssmb.c +9 -8

index 23f10e0d6e7e..8c014a3ff9e0 100644
@@ -5372,14 +5372,15 @@ CIFSSMBSetPathInfoFB(const unsigned int xid, struct cifs_tcon *tcon,
 	struct cifs_fid fid;
 	int rc;
 
-	oparms.tcon = tcon;
-	oparms.cifs_sb = cifs_sb;
-	oparms.desired_access = GENERIC_WRITE;
-	oparms.create_options = cifs_create_options(cifs_sb, 0);
-	oparms.disposition = FILE_OPEN;
-	oparms.path = fileName;
-	oparms.fid = &fid;
-	oparms.reconnect = false;
+	oparms = (struct cifs_open_parms) {
+		.tcon = tcon,
+		.cifs_sb = cifs_sb,
+		.desired_access = GENERIC_WRITE,
+		.create_options = cifs_create_options(cifs_sb, 0),
+		.disposition = FILE_OPEN,
+		.path = fileName,
+		.fid = &fid,
+	};
 
 	rc = CIFS_open(xid, &oparms, &oplock, NULL);
 	if (rc)

fs/cifs/dir.c +10 -9

index ad4208bf1e32..1bf61778f44c 100644
@@ -304,15 +304,16 @@ static int cifs_do_create(struct inode *inode, struct dentry *direntry, unsigned
 	if (!tcon->unix_ext && (mode & S_IWUGO) == 0)
 		create_options |= CREATE_OPTION_READONLY;
 
-	oparms.tcon = tcon;
-	oparms.cifs_sb = cifs_sb;
-	oparms.desired_access = desired_access;
-	oparms.create_options = cifs_create_options(cifs_sb, create_options);
-	oparms.disposition = disposition;
-	oparms.path = full_path;
-	oparms.fid = fid;
-	oparms.reconnect = false;
-	oparms.mode = mode;
+	oparms = (struct cifs_open_parms) {
+		.tcon = tcon,
+		.cifs_sb = cifs_sb,
+		.desired_access = desired_access,
+		.create_options = cifs_create_options(cifs_sb, create_options),
+		.disposition = disposition,
+		.path = full_path,
+		.fid = fid,
+		.mode = mode,
+	};
 	rc = server->ops->open(xid, &oparms, oplock, buf);
 	if (rc) {
 		cifs_dbg(FYI, "cifs_create returned 0x%x\n", rc);

fs/cifs/file.c +19 ~~-16~~

index 7eb476a23701..e216bc9b7abf 100644
@@ -260,14 +260,15 @@ static int cifs_nt_open(const char *full_path, struct inode *inode, struct cifs_
 	if (f_flags & O_DIRECT)
 		create_options |= CREATE_NO_BUFFER;
 
-	oparms.tcon = tcon;
-	oparms.cifs_sb = cifs_sb;
-	oparms.desired_access = desired_access;
-	oparms.create_options = cifs_create_options(cifs_sb, create_options);
-	oparms.disposition = disposition;
-	oparms.path = full_path;
-	oparms.fid = fid;
-	oparms.reconnect = false;
+	oparms = (struct cifs_open_parms) {
+		.tcon = tcon,
+		.cifs_sb = cifs_sb,
+		.desired_access = desired_access,
+		.create_options = cifs_create_options(cifs_sb, create_options),
+		.disposition = disposition,
+		.path = full_path,
+		.fid = fid,
+	};
 
 	rc = server->ops->open(xid, &oparms, oplock, buf);
 	if (rc)

@@ -848,14 +849,16 @@ cifs_reopen_file(struct cifsFileInfo *cfile, bool can_flush)
 	if (server->ops->get_lease_key)
 		server->ops->get_lease_key(inode, &cfile->fid);
 
-	oparms.tcon = tcon;
-	oparms.cifs_sb = cifs_sb;
-	oparms.desired_access = desired_access;
-	oparms.create_options = cifs_create_options(cifs_sb, create_options);
-	oparms.disposition = disposition;
-	oparms.path = full_path;
-	oparms.fid = &cfile->fid;
-	oparms.reconnect = true;
+	oparms = (struct cifs_open_parms) {
+		.tcon = tcon,
+		.cifs_sb = cifs_sb,
+		.desired_access = desired_access,
+		.create_options = cifs_create_options(cifs_sb, create_options),
+		.disposition = disposition,
+		.path = full_path,
+		.fid = &cfile->fid,
+		.reconnect = true,
+	};
 
 	/*
 	 * Can not refresh inode by passing in file_info buf to be returned by

fs/cifs/inode.c +28 ~~-25~~

71 lines not on this page · raw message

fs/cifs/link.c +35 ~~-31~~

90 lines not on this page · raw message

fs/cifs/smb1ops.c +38 ~~-34~~

96 lines not on this page · raw message

fs/cifs/smb2inode.c +9 -8

index 8521adf9ce79..37b4cd59245d 100644
@@ -105,14 +105,15 @@ static int smb2_compound_op(const unsigned int xid, struct cifs_tcon *tcon,
 		goto finished;
 	}
 
-	vars->oparms.tcon = tcon;
-	vars->oparms.desired_access = desired_access;
-	vars->oparms.disposition = create_disposition;
-	vars->oparms.create_options = cifs_create_options(cifs_sb, create_options);
-	vars->oparms.fid = &fid;
-	vars->oparms.reconnect = false;
-	vars->oparms.mode = mode;
-	vars->oparms.cifs_sb = cifs_sb;
+	vars->oparms = (struct cifs_open_parms) {
+		.tcon = tcon,
+		.desired_access = desired_access,
+		.disposition = create_disposition,
+		.create_options = cifs_create_options(cifs_sb, create_options),
+		.fid = &fid,
+		.mode = mode,
+		.cifs_sb = cifs_sb,
+	};
 
 	rqst[num_rqst].rq_iov = &vars->open_iov[0];
 	rqst[num_rqst].rq_nvec = SMB2_CREATE_IOV_SIZE;

fs/cifs/smb2ops.c +101 ~~-90~~

269 lines not on this page · raw message