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Josh Boyer 016e8d44bc fs/minix: Verify bitmap block counts before mounting 
Newer versions of MINIX can create filesystems that allocate an extra
bitmap block.  Mounting of this succeeds, but doing a statfs call will
result in an oops in count_free because of a negative number being used
for the bh index.

Avoid this by verifying the number of allocated blocks at mount time,
erroring out if there are not enough and make statfs ignore the extras
if there are too many.

This fixes https://bugzilla.kernel.org/show_bug.cgi?id=18792

Signed-off-by: Josh Boyer <jwboyer@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-11-19 11:13:26 -05:00
..
9p filesystems: add set_nlink() 2011-11-02 12:53:43 +01:00
adfs filesystems: add set_nlink() 2011-11-02 12:53:43 +01:00
affs filesystems: add set_nlink() 2011-11-02 12:53:43 +01:00
afs filesystems: add set_nlink() 2011-11-02 12:53:43 +01:00
autofs4 filesystems: add set_nlink() 2011-11-02 12:53:43 +01:00
befs filesystems: add set_nlink() 2011-11-02 12:53:43 +01:00
bfs filesystems: add set_nlink() 2011-11-02 12:53:43 +01:00
btrfs new helper: mount_subtree() 2011-11-16 22:00:34 -05:00
cachefiles
ceph ceph/super.c: quiet sparse noise 2011-11-05 21:10:12 -07:00
cifs Merge git://git.samba.org/sfrench/cifs-2.6 2011-11-07 09:56:22 -08:00
coda filesystems: add set_nlink() 2011-11-02 12:53:43 +01:00
configfs
cramfs
debugfs
devpts filesystems: add set_nlink() 2011-11-02 12:53:43 +01:00
dlm
ecryptfs filesystems: add set_nlink() 2011-11-02 12:53:43 +01:00
efs filesystems: add set_nlink() 2011-11-02 12:53:43 +01:00
exofs Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux 2011-11-06 19:44:47 -08:00
exportfs
ext2 Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/hch/vfs-queue 2011-11-02 11:41:01 -07:00
ext3 Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/hch/vfs-queue 2011-11-02 11:41:01 -07:00
ext4 Merge branch 'writeback-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux 2011-11-06 19:02:23 -08:00
fat filesystems: add set_nlink() 2011-11-02 12:53:43 +01:00
freevxfs filesystems: add set_nlink() 2011-11-02 12:53:43 +01:00
fscache
fuse Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux 2011-11-06 19:44:47 -08:00
gfs2 Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux 2011-11-06 19:44:47 -08:00
hfs hfs: add sanity check for file name length 2011-11-15 14:29:42 -02:00
hfsplus filesystems: add set_nlink() 2011-11-02 12:53:43 +01:00
hostfs Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/hch/vfs-queue 2011-11-02 11:41:01 -07:00
hpfs filesystems: add set_nlink() 2011-11-02 12:53:43 +01:00
hppfs filesystems: add set_nlink() 2011-11-02 12:53:43 +01:00
hugetlbfs filesystems: add missing nlink wrappers 2011-11-02 12:53:43 +01:00
isofs Merge branch 'akpm' (Andrew's incoming - part two) 2011-11-02 16:07:27 -07:00
jbd jbd/jbd2: validate sb->s_first in journal_get_superblock() 2011-11-01 19:04:59 -04:00
jbd2 jbd2: Unify log messages in jbd2 code 2011-11-01 19:09:18 -04:00
jffs2 Merge git://git.infradead.org/mtd-2.6 2011-11-07 09:11:16 -08:00
jfs Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux 2011-11-06 19:44:47 -08:00
lockd
logfs Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux 2011-11-06 19:44:47 -08:00
minix fs/minix: Verify bitmap block counts before mounting 2011-11-19 11:13:26 -05:00
ncpfs filesystems: add set_nlink() 2011-11-02 12:53:43 +01:00
nfs new helper: mount_subtree() 2011-11-16 22:00:34 -05:00
nfs_common
nfsd Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux 2011-11-06 19:44:47 -08:00
nilfs2 filesystems: add set_nlink() 2011-11-02 12:53:43 +01:00
nls
notify
ntfs filesystems: add set_nlink() 2011-11-02 12:53:43 +01:00
ocfs2 Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux 2011-11-06 19:44:47 -08:00
omfs
openpromfs filesystems: add set_nlink() 2011-11-02 12:53:43 +01:00
partitions treewide: use __printf not __attribute__((format(printf,...))) 2011-10-31 17:30:54 -07:00
proc Revert "proc: fix races against execve() of /proc/PID/fd**" 2011-11-09 18:16:00 -05:00
pstore
qnx4 filesystems: add set_nlink() 2011-11-02 12:53:43 +01:00
quota Merge branch 'writeback-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux 2011-11-06 19:02:23 -08:00
ramfs ramfs: remove module leftovers 2011-11-02 16:06:58 -07:00
reiserfs filesystems: add set_nlink() 2011-11-02 12:53:43 +01:00
romfs filesystems: add set_nlink() 2011-11-02 12:53:43 +01:00
squashfs Merge git://git.kernel.org/pub/scm/linux/kernel/git/pkl/squashfs-next 2011-11-04 16:48:37 -07:00
sysfs filesystems: add set_nlink() 2011-11-02 12:53:43 +01:00
sysv filesystems: add set_nlink() 2011-11-02 12:53:43 +01:00
ubifs Merge branch 'linux-next' of git://git.infradead.org/ubifs-2.6 2011-11-07 08:52:19 -08:00
udf Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/hch/vfs-queue 2011-11-02 11:41:01 -07:00
ufs filesystems: add set_nlink() 2011-11-02 12:53:43 +01:00
xfs xfs: use doalloc flag in xfs_qm_dqattach_one() 2011-11-15 14:45:09 -06:00
aio.c aio: allocate kiocbs in batches 2011-11-02 16:07:03 -07:00
anon_inodes.c
attr.c
bad_inode.c
binfmt_aout.c
binfmt_elf.c binfmt_elf: fix PIE execution with randomization disabled 2011-11-02 16:06:58 -07:00
binfmt_elf_fdpic.c
binfmt_em86.c
binfmt_flat.c
binfmt_misc.c filesystems: add missing nlink wrappers 2011-11-02 12:53:43 +01:00
binfmt_script.c
binfmt_som.c
bio-integrity.c fs: add export.h to files using EXPORT_SYMBOL/THIS_MODULE macros 2011-10-31 19:30:31 -04:00
bio.c bio: change some signed vars to unsigned 2011-11-16 09:21:50 +01:00
block_dev.c Merge branch 'for-3.2/drivers' of git://git.kernel.dk/linux-block 2011-11-04 17:22:14 -07:00
buffer.c Merge branch 'writeback-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux 2011-11-06 19:02:23 -08:00
char_dev.c
compat.c Cross Memory Attach 2011-10-31 17:30:44 -07:00
compat_binfmt_elf.c
compat_ioctl.c
dcache.c vfs: d_invalidate() should leave mountpoints alone 2011-11-07 10:54:10 -08:00
dcookies.c
direct-io.c direct-io: merge direct_io_walker into __blockdev_direct_IO 2011-10-28 14:58:58 +02:00
drop_caches.c
eventfd.c
eventpoll.c epoll: fix spurious lockdep warnings 2011-10-31 17:30:57 -07:00
exec.c oom: remove oom_disable_count 2011-10-31 17:30:45 -07:00
fcntl.c
fhandle.c
fifo.c
file.c
file_table.c
filesystems.c
fs-writeback.c writeback: Add a 'reason' to wb_writeback_work 2011-10-31 00:33:36 +08:00
fs_struct.c
generic_acl.c
inode.c vfs: protect i_nlink 2011-11-02 12:53:43 +01:00
internal.h
ioctl.c
ioprio.c fs: add export.h to files using EXPORT_SYMBOL/THIS_MODULE macros 2011-10-31 19:30:31 -04:00
Kconfig tmpfs: add "tmpfs" to the Kconfig prompt to make it obvious. 2011-10-31 17:30:45 -07:00
Kconfig.binfmt
libfs.c filesystems: add set_nlink() 2011-11-02 12:53:43 +01:00
locks.c Merge branch 'for-3.2' of git://linux-nfs.org/~bfields/linux 2011-10-25 15:42:01 +02:00
Makefile fs/Makefile: Stupid typo breakage of exofs inclusion 2011-10-27 08:36:51 +02:00
mbcache.c
mpage.c
namei.c VFS: we need to set LOOKUP_JUMPED on mountpoint crossing 2011-11-07 14:58:06 -08:00
namespace.c new helper: mount_subtree() 2011-11-16 22:00:34 -05:00
no-block.c
open.c leases: fix write-open/read-lease race 2011-10-28 14:59:00 +02:00
pipe.c fs/pipe.c: add ->statfs callback for pipefs 2011-10-31 17:30:51 -07:00
pnode.c
pnode.h
posix_acl.c vfs: pass all mask flags check_acl and posix_acl_permission 2011-10-28 14:58:54 +02:00
read_write.c Cross Memory Attach 2011-10-31 17:30:44 -07:00
read_write.h
readdir.c
select.c
seq_file.c
signalfd.c
splice.c
stack.c filesystems: add set_nlink() 2011-11-02 12:53:43 +01:00
stat.c readlinkat: ensure we return ENOENT for the empty pathname for normal lookups 2011-11-02 12:53:42 +01:00
statfs.c VFS: fix statfs() automounter semantics regression 2011-11-04 18:15:59 -07:00
super.c vfs: ignore error on forced remount 2011-11-02 12:53:42 +01:00
sync.c writeback: Add a 'reason' to wb_writeback_work 2011-10-31 00:33:36 +08:00
timerfd.c
utimes.c
xattr.c
xattr_acl.c