From: Miklos Szeredi <miklos@szeredi.hu>
Date: Tue, 2 Jan 2007 20:46:29 +0000 (+0000)
Subject: Fix unaligned access in file desctriptor passing
X-Git-Tag: fuse_2_6_merge1~2
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=fac7b10214e25bc444ca947b770a9ae8227aaa79;p=qemu-gpiodev%2Flibfuse.git

Fix unaligned access in file desctriptor passing
---

diff --git a/ChangeLog b/ChangeLog
index 9fbdfb7..ae90dfa 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2007-01-02  Miklos Szeredi <miklos@szeredi.hu>
+
+	* Fix unaligned access in file desctriptor passing in libfuse,
+	fusermount and ulockmgr.  Debian bug ID: 404904.  Reported and
+	tested by Sebastian Fontius
+
 2006-12-15  Miklos Szeredi <miklos@szeredi.hu>
 
 	* fusermount: Fix detection of fuseblk.  Reported by Szakacsits
diff --git a/lib/mount.c b/lib/mount.c
index a72294b..cbdedf3 100644
--- a/lib/mount.c
+++ b/lib/mount.c
@@ -151,7 +151,7 @@ static int receive_fd(int fd)
     struct iovec iov;
     char buf[1];
     int rv;
-    char ccmsg[CMSG_SPACE(sizeof(int))];
+    size_t ccmsg[CMSG_SPACE(sizeof(int)) / sizeof(size_t)];
     struct cmsghdr *cmsg;
 
     iov.iov_base = buf;
diff --git a/lib/ulockmgr.c b/lib/ulockmgr.c
index 9e9c2b6..bf27b36 100644
--- a/lib/ulockmgr.c
+++ b/lib/ulockmgr.c
@@ -75,7 +75,7 @@ static int ulockmgr_send_message(int sock, void *buf, size_t buflen,
     struct msghdr msg;
     struct cmsghdr *p_cmsg;
     struct iovec vec;
-    char cmsgbuf[CMSG_SPACE(sizeof(int) * MAX_SEND_FDS)];
+    size_t cmsgbuf[CMSG_SPACE(sizeof(int) * MAX_SEND_FDS) / sizeof(size_t)];
     int res;
 
     assert(numfds <= MAX_SEND_FDS);
diff --git a/util/fusermount.c b/util/fusermount.c
index 41ef53d..7e76803 100644
--- a/util/fusermount.c
+++ b/util/fusermount.c
@@ -1036,7 +1036,7 @@ static int send_fd(int sock_fd, int fd)
     struct msghdr msg;
     struct cmsghdr *p_cmsg;
     struct iovec vec;
-    char cmsgbuf[CMSG_SPACE(sizeof(fd))];
+    size_t cmsgbuf[CMSG_SPACE(sizeof(fd)) / sizeof(size_t)];
     int *p_fds;
     char sendchar = 0;
 
diff --git a/util/ulockmgr_server.c b/util/ulockmgr_server.c
index 0d00975..211d74a 100644
--- a/util/ulockmgr_server.c
+++ b/util/ulockmgr_server.c
@@ -58,7 +58,7 @@ static int receive_message(int sock, void *buf, size_t buflen, int *fdp,
 {
     struct msghdr msg;
     struct iovec iov;
-    char ccmsg[CMSG_SPACE(sizeof(int)) * MAX_SEND_FDS];
+    size_t ccmsg[CMSG_SPACE(sizeof(int) * MAX_SEND_FDS) / sizeof(size_t)];
     struct cmsghdr *cmsg;
     int res;
     int i;