Jan Kara 64847df5bf ext2: Fix underflow in ext2_max_size() ... commit 1c2d14212b15a60300a2d4f6364753e87394c521 upstream. When ext2 filesystem is created with 64k block size, ext2_max_size() will return value less than 0. Also, we cannot write any file in this fs since the sb->maxbytes is less than 0. The core of the problem is that the size of block index tree for such large block size is more than i_blocks can carry. So fix the computation to count with this possibility. File size limits computed with the new function for the full range of possible block sizes look like: bits file_size 10 17247252480 11 275415851008 12 2196873666560 13 2197948973056 14 2198486220800 15 2198754754560 16 2198888906752 CC: stable@vger.kernel.org Reported-by: yangerkun <yangerkun@huawei.com> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2019-03-23 08:44:36 +01:00
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acl.c
acl.h
balloc.c
dir.c
ext2.h
file.c
ialloc.c
inode.c
ioctl.c
Kconfig
Makefile
namei.c	do d_instantiate/unlock_new_inode combinations safely	2018-05-30 07:48:52 +02:00
super.c	ext2: Fix underflow in ext2_max_size()	2019-03-23 08:44:36 +01:00
symlink.c
xattr.c	ext2: fix potential use after free	2018-12-13 09:21:27 +01:00
xattr.h
xattr_security.c
xattr_trusted.c
xattr_user.c