----- Ursprüngliche Mail ----- > Von: "Andreas Gruenbacher" <agruenba@xxxxxxxxxx> > An: "Christoph Hellwig" <hch@xxxxxxxxxxxxx>, "Darrick" <darrick.wong@xxxxxxxxxx> > CC: "Andreas Gruenbacher" <agruenba@xxxxxxxxxx>, "torvalds" <torvalds@xxxxxxxxxxxxxxxxxxxx>, "linux-kernel" > <linux-kernel@xxxxxxxxxxxxxxx>, "Al Viro" <viro@xxxxxxxxxxxxxxxxxx>, "Jeff Layton" <jlayton@xxxxxxxxxx>, "Sage Weil" > <sage@xxxxxxxxxx>, "Ilya Dryomov" <idryomov@xxxxxxxxx>, "tytso" <tytso@xxxxxxx>, "Andreas Dilger" > <adilger.kernel@xxxxxxxxx>, "Jaegeuk Kim" <jaegeuk@xxxxxxxxxx>, "Chao Yu" <chao@xxxxxxxxxx>, linux-xfs@xxxxxxxxxxxxxxx, > "linux-fsdevel" <linux-fsdevel@xxxxxxxxxxxxxxx>, "richard" <richard@xxxxxx>, "Artem Bityutskiy" <dedekind1@xxxxxxxxx>, > "Adrian Hunter" <adrian.hunter@xxxxxxxxx>, ceph-devel@xxxxxxxxxxxxxxx, linux-ext4@xxxxxxxxxxxxxxx, > linux-f2fs-devel@xxxxxxxxxxxxxxxxxxxxx, "linux-mtd" <linux-mtd@xxxxxxxxxxxxxxxxxxx>, "Chris Mason" <clm@xxxxxx>, "Josef > Bacik" <josef@xxxxxxxxxxxxxx>, "David Sterba" <dsterba@xxxxxxxx>, "linux-btrfs" <linux-btrfs@xxxxxxxxxxxxxxx> > Gesendet: Freitag, 29. November 2019 15:20:45 > Betreff: [PATCH v2] fs: Fix page_mkwrite off-by-one errors > The check in block_page_mkwrite meant to determine whether an offset is > within the inode size is off by one. This bug has spread to > iomap_page_mkwrite and to several filesystems (ubifs, ext4, f2fs, ceph). > To fix that, introduce a new page_mkwrite_check_truncate helper that > checks for truncate and computes the bytes in the page up to EOF, and > use that helper in the above mentioned filesystems and in btrfs. > > Signed-off-by: Andreas Gruenbacher <agruenba@xxxxxxxxxx> Thank you for fixing UBIFS! Acked-by: Richard Weinberger <richard@xxxxxx> Thanks, //richard
