diff options
Diffstat (limited to 'meta/recipes-devtools/qemu/qemu/CVE-2020-35517_1.patch')
| -rw-r--r-- | meta/recipes-devtools/qemu/qemu/CVE-2020-35517_1.patch | 153 |
1 files changed, 0 insertions, 153 deletions
diff --git a/meta/recipes-devtools/qemu/qemu/CVE-2020-35517_1.patch b/meta/recipes-devtools/qemu/qemu/CVE-2020-35517_1.patch deleted file mode 100644 index 73a4cb2064..0000000000 --- a/meta/recipes-devtools/qemu/qemu/CVE-2020-35517_1.patch +++ /dev/null @@ -1,153 +0,0 @@ -From 8afaaee976965b7fb90ec225a51d60f35c5f173c Mon Sep 17 00:00:00 2001 -From: Stefan Hajnoczi <stefanha@redhat.com> -Date: Thu, 4 Feb 2021 15:02:06 +0000 -Subject: [PATCH] virtiofsd: extract lo_do_open() from lo_open() - -Both lo_open() and lo_create() have similar code to open a file. Extract -a common lo_do_open() function from lo_open() that will be used by -lo_create() in a later commit. - -Since lo_do_open() does not otherwise need fuse_req_t req, convert -lo_add_fd_mapping() to use struct lo_data *lo instead. - -Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> -Message-Id: <20210204150208.367837-2-stefanha@redhat.com> -Reviewed-by: Greg Kurz <groug@kaod.org> -Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> - -Upstream-Status: Backport -[https://github.com/qemu/qemu/commit/8afaaee976965b7fb90ec225a51d60f35c5f173c] - -CVE: CVE-2020-35517 - -Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> -Signed-off-by: Khairul Rohaizzat Jamaluddin <khairul.rohaizzat.jamaluddin@intel.com> ---- - tools/virtiofsd/passthrough_ll.c | 73 +++++++++++++++++++++++++--------------- - 1 file changed, 46 insertions(+), 27 deletions(-) - -diff --git a/tools/virtiofsd/passthrough_ll.c b/tools/virtiofsd/passthrough_ll.c -index 5fb36d9..f14fa51 100644 ---- a/tools/virtiofsd/passthrough_ll.c -+++ b/tools/virtiofsd/passthrough_ll.c -@@ -459,17 +459,17 @@ static void lo_map_remove(struct lo_map *map, size_t key) - } - - /* Assumes lo->mutex is held */ --static ssize_t lo_add_fd_mapping(fuse_req_t req, int fd) -+static ssize_t lo_add_fd_mapping(struct lo_data *lo, int fd) - { - struct lo_map_elem *elem; - -- elem = lo_map_alloc_elem(&lo_data(req)->fd_map); -+ elem = lo_map_alloc_elem(&lo->fd_map); - if (!elem) { - return -1; - } - - elem->fd = fd; -- return elem - lo_data(req)->fd_map.elems; -+ return elem - lo->fd_map.elems; - } - - /* Assumes lo->mutex is held */ -@@ -1651,6 +1651,38 @@ static void update_open_flags(int writeback, int allow_direct_io, - } - } - -+static int lo_do_open(struct lo_data *lo, struct lo_inode *inode, -+ struct fuse_file_info *fi) -+{ -+ char buf[64]; -+ ssize_t fh; -+ int fd; -+ -+ update_open_flags(lo->writeback, lo->allow_direct_io, fi); -+ -+ sprintf(buf, "%i", inode->fd); -+ fd = openat(lo->proc_self_fd, buf, fi->flags & ~O_NOFOLLOW); -+ if (fd == -1) { -+ return errno; -+ } -+ -+ pthread_mutex_lock(&lo->mutex); -+ fh = lo_add_fd_mapping(lo, fd); -+ pthread_mutex_unlock(&lo->mutex); -+ if (fh == -1) { -+ close(fd); -+ return ENOMEM; -+ } -+ -+ fi->fh = fh; -+ if (lo->cache == CACHE_NONE) { -+ fi->direct_io = 1; -+ } else if (lo->cache == CACHE_ALWAYS) { -+ fi->keep_cache = 1; -+ } -+ return 0; -+} -+ - static void lo_create(fuse_req_t req, fuse_ino_t parent, const char *name, - mode_t mode, struct fuse_file_info *fi) - { -@@ -1691,7 +1723,7 @@ static void lo_create(fuse_req_t req, fuse_ino_t parent, const char *name, - ssize_t fh; - - pthread_mutex_lock(&lo->mutex); -- fh = lo_add_fd_mapping(req, fd); -+ fh = lo_add_fd_mapping(lo, fd); - pthread_mutex_unlock(&lo->mutex); - if (fh == -1) { - close(fd); -@@ -1892,38 +1924,25 @@ static void lo_fsyncdir(fuse_req_t req, fuse_ino_t ino, int datasync, - - static void lo_open(fuse_req_t req, fuse_ino_t ino, struct fuse_file_info *fi) - { -- int fd; -- ssize_t fh; -- char buf[64]; - struct lo_data *lo = lo_data(req); -+ struct lo_inode *inode = lo_inode(req, ino); -+ int err; - - fuse_log(FUSE_LOG_DEBUG, "lo_open(ino=%" PRIu64 ", flags=%d)\n", ino, - fi->flags); - -- update_open_flags(lo->writeback, lo->allow_direct_io, fi); -- -- sprintf(buf, "%i", lo_fd(req, ino)); -- fd = openat(lo->proc_self_fd, buf, fi->flags & ~O_NOFOLLOW); -- if (fd == -1) { -- return (void)fuse_reply_err(req, errno); -- } -- -- pthread_mutex_lock(&lo->mutex); -- fh = lo_add_fd_mapping(req, fd); -- pthread_mutex_unlock(&lo->mutex); -- if (fh == -1) { -- close(fd); -- fuse_reply_err(req, ENOMEM); -+ if (!inode) { -+ fuse_reply_err(req, EBADF); - return; - } - -- fi->fh = fh; -- if (lo->cache == CACHE_NONE) { -- fi->direct_io = 1; -- } else if (lo->cache == CACHE_ALWAYS) { -- fi->keep_cache = 1; -+ err = lo_do_open(lo, inode, fi); -+ lo_inode_put(lo, &inode); -+ if (err) { -+ fuse_reply_err(req, err); -+ } else { -+ fuse_reply_open(req, fi); - } -- fuse_reply_open(req, fi); - } - - static void lo_release(fuse_req_t req, fuse_ino_t ino, --- -1.8.3.1 - |