* FAILED: patch "[PATCH] fuse: verify write return" failed to apply to 4.4-stable tree
@ 2019-12-07 12:06 gregkh
0 siblings, 0 replies; only message in thread
From: gregkh @ 2019-12-07 12:06 UTC (permalink / raw)
To: mszeredi, stable; +Cc: stable
The patch below does not apply to the 4.4-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 <stable@vger.kernel.org>.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 8aab336b14c115c6bf1d4baeb9247e41ed9ce6de Mon Sep 17 00:00:00 2001
From: Miklos Szeredi <mszeredi@redhat.com>
Date: Tue, 12 Nov 2019 11:49:04 +0100
Subject: [PATCH] fuse: verify write return
Make sure filesystem is not returning a bogus number of bytes written.
Fixes: ea9b9907b82a ("fuse: implement perform_write")
Cc: <stable@vger.kernel.org> # v2.6.26
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index db48a5cf8620..795d0f24d8b4 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -1096,6 +1096,8 @@ static ssize_t fuse_send_write_pages(struct fuse_io_args *ia,
ia->write.in.flags = fuse_write_flags(iocb);
err = fuse_simple_request(fc, &ap->args);
+ if (!err && ia->write.out.size > count)
+ err = -EIO;
offset = ap->descs[0].offset;
count = ia->write.out.size;
^ permalink raw reply related [flat|nested] only message in thread
only message in thread, other threads:[~2019-12-07 12:06 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-12-07 12:06 FAILED: patch "[PATCH] fuse: verify write return" failed to apply to 4.4-stable tree gregkh
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.