This is a note to let you know that I've just added the patch titled
ocfs2: check new file size on fallocate call
to the 5.15-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:
ocfs2-check-new-file-size-on-fallocate-call.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 26a6ffff7de5dd369cdb12e38ba11db682f1dec0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lu=C3=ADs=20Henriques?= <ocfs2-devel@xxxxxxxxxxxxxx>
Date: Mon, 29 May 2023 16:26:45 +0100
Subject: ocfs2: check new file size on fallocate call
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From: Luís Henriques <ocfs2-devel@xxxxxxxxxxxxxx>
commit 26a6ffff7de5dd369cdb12e38ba11db682f1dec0 upstream.
When changing a file size with fallocate() the new size isn't being
checked. In particular, the FSIZE ulimit isn't being checked, which makes
fstest generic/228 fail. Simply adding a call to inode_newsize_ok() fixes
this issue.
Link: https://lkml.kernel.org/r/20230529152645.32680-1-lhenriques@xxxxxxx
Signed-off-by: Luís Henriques <lhenriques@xxxxxxx>
Reviewed-by: Mark Fasheh <mark@xxxxxxxxxx>
Reviewed-by: Joseph Qi <joseph.qi@xxxxxxxxxxxxxxxxx>
Cc: Joel Becker <jlbec@xxxxxxxxxxxx>
Cc: Junxiao Bi <junxiao.bi@xxxxxxxxxx>
Cc: Changwei Ge <gechangwei@xxxxxxx>
Cc: Gang He <ghe@xxxxxxxx>
Cc: Jun Piao <piaojun@xxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/ocfs2/file.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -2103,14 +2103,20 @@ static long ocfs2_fallocate(struct file
struct ocfs2_space_resv sr;
int change_size = 1;
int cmd = OCFS2_IOC_RESVSP64;
+ int ret = 0;
if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE))
return -EOPNOTSUPP;
if (!ocfs2_writes_unwritten_extents(osb))
return -EOPNOTSUPP;
- if (mode & FALLOC_FL_KEEP_SIZE)
+ if (mode & FALLOC_FL_KEEP_SIZE) {
change_size = 0;
+ } else {
+ ret = inode_newsize_ok(inode, offset + len);
+ if (ret)
+ return ret;
+ }
if (mode & FALLOC_FL_PUNCH_HOLE)
cmd = OCFS2_IOC_UNRESVSP64;
Patches currently in stable-queue which might be from ocfs2-devel@xxxxxxxxxxxxxx are
queue-5.15/ocfs2-check-new-file-size-on-fallocate-call.patch
queue-5.15/ocfs2-fix-use-after-free-when-unmounting-read-only-filesystem.patch
