Ernesto A. Fernández 5f427ca479 hfsplus: prevent btree data loss on root split ... [ Upstream commit 0a3021d4f5 ] Creating, renaming or deleting a file may cause catalog corruption and data loss. This bug is randomly triggered by xfstests generic/027, but here is a faster reproducer: truncate -s 50M fs.iso mkfs.hfsplus fs.iso mount fs.iso /mnt i=100 while [ $i -le 150 ]; do touch /mnt/$i &>/dev/null ((++i)) done i=100 while [ $i -le 150 ]; do mv /mnt/$i /mnt/$(perl -e "print $i x82") &>/dev/null ((++i)) done umount /mnt fsck.hfsplus -n fs.iso The bug is triggered whenever hfs_brec_update_parent() needs to split the root node. The height of the btree is not increased, which leaves the new node orphaned and its records lost. Link: http://lkml.kernel.org/r/26d882184fc43043a810114258f45277752186c7.1535682461.git.ernesto.mnd.fernandez@gmail.com Signed-off-by: Ernesto A. Fernández <ernesto.mnd.fernandez@gmail.com> Cc: Christoph Hellwig <hch@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2018-11-27 16:08:00 +01:00
..
acl.h
attributes.c
bfind.c
bitmap.c
bnode.c
brec.c	hfsplus: prevent btree data loss on root split	2018-11-27 16:08:00 +01:00
btree.c
catalog.c
dir.c	hfsplus: fix NULL dereference in hfsplus_lookup()	2018-09-15 09:40:38 +02:00
extents.c
hfsplus_fs.h
hfsplus_raw.h
inode.c
ioctl.c
Kconfig
Makefile
options.c
part_tbl.c
posix_acl.c
super.c	hfsplus: don't return 0 when fill_super() failed	2018-09-15 09:40:37 +02:00
tables.c
unicode.c
wrapper.c
xattr_security.c
xattr_trusted.c
xattr_user.c
xattr.c
xattr.h