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authorLinus Torvalds <torvalds@linux-foundation.org>2023-04-10 13:25:08 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2023-04-10 13:25:08 -0700
commitc118b59e71d2a910ee300f8be40fa864a91bb6ca (patch)
treec6200c5449e1802a2c7ef66373d6185468051139
parent411eb014108594d160a20381e8738de6c62e2e5b (diff)
parent347dca97f75d461ac2ac256b68e495dfc6f14d61 (diff)
downloadlinux-c118b59e71d2a910ee300f8be40fa864a91bb6ca.tar.gz
Merge tag '9p-6.3-fixes-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs
Pull 9p fixes from Eric Van Hensbergen: "These are some collected fixes for the 6.3-rc series that have been passed our 9p regression tests and been in for-next for at least a week. They include a fix for a KASAN reported problem in the extended attribute handling code and a use after free in the xen transport. This also includes some updates for the MAINTAINERS file including the transition of our development mailing list from sourceforge.net to lists.linux.dev" * tag '9p-6.3-fixes-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs: Update email address and mailing list for v9fs 9p/xen : Fix use after free bug in xen_9pfs_front_remove due to race condition 9P FS: Fix wild-memory-access write in v9fs_get_acl
-rw-r--r--MAINTAINERS6
-rw-r--r--fs/9p/xattr.c8
-rw-r--r--net/9p/trans_xen.c4
3 files changed, 12 insertions, 6 deletions
diff --git a/MAINTAINERS b/MAINTAINERS
index 90abe83c02f3bc..4485969f58f124 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -224,13 +224,13 @@ S: Orphan / Obsolete
F: drivers/net/ethernet/8390/
9P FILE SYSTEM
-M: Eric Van Hensbergen <ericvh@gmail.com>
+M: Eric Van Hensbergen <ericvh@kernel.org>
M: Latchesar Ionkov <lucho@ionkov.net>
M: Dominique Martinet <asmadeus@codewreck.org>
R: Christian Schoenebeck <linux_oss@crudebyte.com>
-L: v9fs-developer@lists.sourceforge.net
+L: v9fs@lists.linux.dev
S: Maintained
-W: http://swik.net/v9fs
+W: http://github.com/v9fs
Q: http://patchwork.kernel.org/project/v9fs-devel/list/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs.git
T: git git://github.com/martinetd/linux.git
diff --git a/fs/9p/xattr.c b/fs/9p/xattr.c
index 50f7f3f6b55e9a..1974a38bce206f 100644
--- a/fs/9p/xattr.c
+++ b/fs/9p/xattr.c
@@ -35,10 +35,12 @@ ssize_t v9fs_fid_xattr_get(struct p9_fid *fid, const char *name,
return retval;
}
if (attr_size > buffer_size) {
- if (!buffer_size) /* request to get the attr_size */
- retval = attr_size;
- else
+ if (buffer_size)
retval = -ERANGE;
+ else if (attr_size > SSIZE_MAX)
+ retval = -EOVERFLOW;
+ else /* request to get the attr_size */
+ retval = attr_size;
} else {
iov_iter_truncate(&to, attr_size);
retval = p9_client_read(attr_fid, 0, &to, &err);
diff --git a/net/9p/trans_xen.c b/net/9p/trans_xen.c
index c64050e839ac6f..1fffe2bed5b02f 100644
--- a/net/9p/trans_xen.c
+++ b/net/9p/trans_xen.c
@@ -280,6 +280,10 @@ static void xen_9pfs_front_free(struct xen_9pfs_front_priv *priv)
write_unlock(&xen_9pfs_lock);
for (i = 0; i < priv->num_rings; i++) {
+ struct xen_9pfs_dataring *ring = &priv->rings[i];
+
+ cancel_work_sync(&ring->work);
+
if (!priv->rings[i].intf)
break;
if (priv->rings[i].irq > 0)