Jeff Mahoney ee52716245 hfsplus: fix oops on mount with corrupted btree extent records ...

A particular fsfuzzer run caused an hfs file system to crash on mount. This
is due to a corrupted MDB extent record causing a miscalculation of
HFSPLUS_I(inode)->first_blocks for the extent tree. If the extent records
are zereod out, then it won't trigger the first_blocks special case and
instead falls through to the extent code, which we're in the middle
of initializing.

This patch catches the 0 size extent records, reports the corruption,
and fails the mount.

[hch: ported of commit 47f365eb57 from hfs]

Reported-by: Ramon de Carvalho Valle <rcvalle@linux.vnet.ibm.com>
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Christoph Hellwig <hch@tuxera.com>

2010-10-14 09:53:37 -04:00

..

bfind.c

hfsplus: convert tree_lock to mutex

2010-10-01 05:46:52 +02:00

bitmap.c

hfsplus: fix HFSPLUS_SB calling convention

2010-10-01 05:42:59 +02:00

bnode.c

…

brec.c

…

btree.c

hfsplus: fix oops on mount with corrupted btree extent records

2010-10-14 09:53:37 -04:00

catalog.c

hfsplus: fix HFSPLUS_I calling convention

2010-10-01 05:43:31 +02:00

dir.c

hfsplus: fix rename over directories

2010-10-01 09:12:08 +02:00

extents.c

hfsplus: add missing extent locking in hfsplus_write_inode

2010-10-01 05:46:31 +02:00

hfsplus_fs.h

hfsplus: convert tree_lock to mutex

2010-10-01 05:46:52 +02:00

hfsplus_raw.h

[PATCH] extend the set of "__attribute__" shortcut macros

2007-02-11 10:51:35 -08:00

inode.c

hfsplus: remove the rsrc_inodes list

2010-10-01 05:44:02 +02:00

ioctl.c

hfsplus: fix HFSPLUS_I calling convention

2010-10-01 05:43:31 +02:00

Kconfig

fs/Kconfig: move hfs, hfsplus out

2009-01-22 13:15:57 +03:00

Makefile

…

options.c

hfsplus: use atomic bitops for the superblock flags

2010-10-01 05:45:20 +02:00

part_tbl.c

hfsplus: fix HFSPLUS_SB calling convention

2010-10-01 05:42:59 +02:00

super.c

hfsplus: use atomic bitops for the superblock flags

2010-10-01 05:45:20 +02:00

tables.c

…

unicode.c

hfsplus: use atomic bitops for the superblock flags

2010-10-01 05:45:20 +02:00

wrapper.c

hfsplus: use atomic bitops for the superblock flags

2010-10-01 05:45:20 +02:00