This is a note to let you know that I've just added the patch titled
ovl: update ->f_iocb_flags when ovl_change_flags() modifies ->f_flags
to the 6.0-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
ovl-update-f_iocb_flags-when-ovl_change_flags-modifies-f_flags.patch
and it can be found in the queue-6.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 456b59e757b0c558df550764a4fd5ae6877e93f8 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Date: Thu, 24 Nov 2022 17:03:11 +0000
Subject: ovl: update ->f_iocb_flags when ovl_change_flags() modifies ->f_flags
From: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
commit 456b59e757b0c558df550764a4fd5ae6877e93f8 upstream.
ovl_change_flags() is an open-coded variant of fs/fcntl.c:setfl() and it
got missed by commit 164f4064ca81 ("keep iocb_flags() result cached in
struct file"); the same change applies there.
Reported-by: Pierre Labastie <pierre.labastie@xxxxxxx>
Fixes: 164f4064ca81 ("keep iocb_flags() result cached in struct file")
Cc: <stable@xxxxxxxxxxxxxxx> # v6.0
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216738
Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Miklos Szeredi <mszeredi@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/overlayfs/file.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/fs/overlayfs/file.c b/fs/overlayfs/file.c
index a1a22f58ba18..dd688a842b0b 100644
--- a/fs/overlayfs/file.c
+++ b/fs/overlayfs/file.c
@@ -96,6 +96,7 @@ static int ovl_change_flags(struct file *file, unsigned int flags)
spin_lock(&file->f_lock);
file->f_flags = (file->f_flags & ~OVL_SETFL_MASK) | flags;
+ file->f_iocb_flags = iocb_flags(file);
spin_unlock(&file->f_lock);
return 0;
--
2.39.0
Patches currently in stable-queue which might be from viro@xxxxxxxxxxxxxxxxxx are
queue-6.0/ovl-update-f_iocb_flags-when-ovl_change_flags-modifies-f_flags.patch
