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Eric Sandeen 15121c18a2 ext4: Fix optional-arg mount options 
We have 2 mount options, "barrier" and "auto_da_alloc" which may or
may not take a 1/0 argument.  This causes the ext4 superblock mount
code to subtract uninitialized pointers and pass the result to
kmalloc, which results in very noisy failures.

Per Ted's suggestion, initialize the args struct so that
we know whether match_token() found an argument for the
option, and skip match_int() if not.

Also, return error (0) from parse_options if we thought
we found an argument, but match_int() Fails.

Reported-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
 		2010-02-15 20:17:55 -05:00
..
9p 9p: fix memory leak in v9fs_parse_options() 2010-02-08 17:59:34 -06:00
adfs adfs: remove redundant test on unsigned 2009-09-24 07:21:05 -07:00
affs fix affs parse_options() 2010-01-26 22:22:25 -05:00
afs afs: remove manual O_SYNC handling 2009-12-10 15:02:50 +01:00
autofs trivial: remove unnecessary semicolons 2009-09-21 15:14:58 +02:00
autofs4 autofs4: always use lookup for lookup 2009-12-16 07:19:58 -08:00
befs befs: fix leak 2010-02-07 03:06:21 -05:00
bfs Fix failure exits in bfs_fill_super() 2010-01-26 22:22:25 -05:00
btrfs Merge git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable 2010-02-05 07:23:03 -08:00
cachefiles Untangling ima mess, part 2: deal with counters 2009-12-16 12:16:47 -05:00
cifs Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6 2010-02-10 07:16:44 -08:00
coda sysctl: Drop & in front of every proc_handler. 2009-11-18 08:37:40 -08:00
configfs Fix configfs leak 2010-01-14 09:05:42 -05:00
cramfs fs/cramfs: return f_fsid for statfs(2) 2009-04-02 19:05:08 -07:00
debugfs get rid of pointless checks after simple_pin_fs() 2010-01-26 22:22:26 -05:00
devpts devpts_get_tty() should validate inode 2009-12-11 15:18:05 -08:00
dlm Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm 2009-12-10 09:33:59 -08:00
ecryptfs ecryptfs: use after free 2010-01-19 22:36:06 -06:00
efs get rid of BKL in fs/efs 2009-06-17 00:36:36 -04:00
exofs exofs: simple_write_end does not mark_inode_dirty 2010-01-05 09:14:32 +02:00
exportfs nfs: new subdir Documentation/filesystems/nfs 2009-10-27 19:34:04 -04:00
ext2 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 2009-12-16 12:04:02 -08:00
ext3 ext3: Replace lock/unlock_super() with an explicit lock for resizing 2009-12-23 13:44:12 +01:00
ext4 ext4: Fix optional-arg mount options 2010-02-15 20:17:55 -05:00
fat Merge git://git.kernel.org/pub/scm/linux/kernel/git/hirofumi/fatfs-2.6 2009-12-16 10:29:26 -08:00
freevxfs headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
fscache FS-Cache: Avoid maybe-used-uninitialised warning on variable 2009-12-16 07:20:13 -08:00
fuse mm: flush dcache before writing into page to avoid alias 2010-02-02 18:11:21 -08:00
gfs2 GFS2: Fix bmap allocation corner-case bug 2010-02-12 10:16:14 +00:00
hfs hfs: fix a potential buffer overflow 2009-12-15 08:53:10 -08:00
hfsplus hfsplus: refuse to mount volumes larger than 2TB 2009-10-29 07:39:27 -07:00
hostfs hostfs: set maximum filesize in superblock for proper LFS support 2009-06-30 18:56:03 -07:00
hpfs hpfs: use bitmap_weight() 2009-12-16 07:20:06 -08:00
hppfs hppfs: handle ->put_link() 2010-01-14 09:05:25 -05:00
hugetlbfs Untangling ima mess, part 1: alloc_file() 2009-12-16 12:16:47 -05:00
isofs Merge branch 'for-2.6.33' of git://linux-nfs.org/~bfields/linux 2009-12-16 10:43:34 -08:00
jbd jbd: jbd-debug and jbd2-debug should be writable 2009-12-23 13:44:13 +01:00
jbd2 jbd2: don't use __GFP_NOFAIL in journal_init_common() 2009-12-23 08:05:15 -05:00
jffs2 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 2009-12-16 12:04:02 -08:00
jfs jfs: Fix 32bit build warning 2009-12-22 12:27:35 -05:00
lockd Merge branch 'for-2.6.33' of git://linux-nfs.org/~bfields/linux 2009-12-16 10:43:34 -08:00
minix V3 minixfs: add missing directory type checking 2009-09-23 07:39:57 -07:00
ncpfs tree-wide: fix assorted typos all over the place 2009-12-04 15:39:55 +01:00
nfs NFS: Fix the mapping of the NFSERR_SERVERFAULT error 2010-02-09 14:29:29 -05:00
nfs_common SUNRPC: nfsacl_encode/nfsacl_decode should be exported as GPL-only 2008-12-23 15:21:32 -05:00
nfsd Merge branch 'for-2.6.33' of git://linux-nfs.org/~bfields/linux 2010-02-08 17:08:01 -08:00
nilfs2 nilfs2: fix potential leak of dirty data on umount 2010-01-31 14:57:31 +09:00
nls Merge git://git.kernel.org/pub/scm/linux/kernel/git/hirofumi/fatfs-2.6 2009-09-30 09:31:14 -07:00
notify inotify: only warn once for inotify problems 2010-01-15 14:49:23 -08:00
ntfs kill I_LOCK 2009-12-17 11:03:25 -05:00
ocfs2 ocfs2/cluster: Make o2net connect messages KERN_NOTICE 2010-02-08 13:02:28 -08:00
omfs tree-wide: fix assorted typos all over the place 2009-12-04 15:39:55 +01:00
openpromfs zero i_uid/i_gid on inode allocation 2009-01-05 11:54:28 -05:00
partitions partitions: read whole sector with EFI GPT header 2009-11-23 09:29:58 +01:00
proc fix autofs/afs/etc. magic mountpoint breakage 2010-01-14 09:05:25 -05:00
qnx4 qnx4: use hweight8 2009-12-16 07:20:18 -08:00
quota quota: Fix dquot_transfer for filesystems different from ext4 2010-01-11 13:06:41 +01:00
ramfs nommu: fix shared mmap after truncate shrinkage problems 2010-01-16 12:15:40 -08:00
reiserfs reiserfs: Fix vmalloc call under reiserfs lock 2010-01-28 13:43:50 +01:00
romfs fix leak in romfs_fill_super() 2010-01-26 22:22:26 -05:00
smbfs fs: Make unload_nls() NULL pointer safe 2009-09-24 07:47:42 -04:00
squashfs const: mark remaining super_operations const 2009-09-22 07:17:24 -07:00
sysfs sysfs: Add lockdep annotations for the sysfs active reference 2010-01-04 12:34:46 -08:00
sysv get rid of BKL in fs/sysv 2009-06-17 00:36:37 -04:00
ubifs lib: Introduce generic list_sort function 2010-01-12 21:02:00 -08:00
udf udf: Avoid IO in udf_clear_inode 2009-12-14 21:40:04 +01:00
ufs ufs: NFS support 2009-12-16 07:20:06 -08:00
xfs xfs: xfs_swap_extents needs to handle dynamic fork offsets 2010-01-15 13:49:07 -06:00
Kconfig Revert "task_struct: make journal_info conditional" 2009-12-17 13:23:24 -08:00
Kconfig.binfmt CORE_DUMP_DEFAULT_ELF_HEADERS depends on ELF_CORE 2009-01-09 16:54:41 -08:00
Makefile nilfs2: update makefile and Kconfig 2009-04-07 08:31:16 -07:00
aio.c aio: remove unused field 2009-12-16 07:20:13 -08:00
anon_inodes.c Sanitize f_flags helpers 2009-12-22 12:27:34 -05:00
attr.c truncate: new helpers 2009-09-24 08:41:47 -04:00
bad_inode.c kill ->dir_notify() 2008-12-31 18:07:43 -05:00
binfmt_aout.c Split 'flush_old_exec' into two functions 2010-01-29 08:22:01 -08:00
binfmt_elf.c Split 'flush_old_exec' into two functions 2010-01-29 08:22:01 -08:00
binfmt_elf_fdpic.c Split 'flush_old_exec' into two functions 2010-01-29 08:22:01 -08:00
binfmt_em86.c
…
binfmt_flat.c Split 'flush_old_exec' into two functions 2010-01-29 08:22:01 -08:00
binfmt_misc.c fs/binfmt_misc.c: add terminating newline to /proc/sys/fs/binfmt_misc/status 2009-01-06 15:59:19 -08:00
binfmt_script.c
…
binfmt_som.c Split 'flush_old_exec' into two functions 2010-01-29 08:22:01 -08:00
bio-integrity.c block: fix bugs in bio-integrity mempool usage 2010-01-30 20:28:19 +01:00
bio.c block: fix bio_add_page for non trivial merge_bvec_fn case 2010-01-28 15:08:29 +01:00
block_dev.c freeze_bdev: don't deactivate successfully frozen MS_RDONLY sb 2010-02-07 03:06:21 -05:00
buffer.c Merge branch 'writeback' of git://git.kernel.dk/linux-2.6-block 2009-09-25 09:27:30 -07:00
char_dev.c fs/char_dev.c: remove useless loop 2009-09-24 07:21:03 -07:00
compat.c compat.c: Remove dependence on nfsd private headers 2009-12-14 18:12:10 -05:00
compat_binfmt_elf.c
…
compat_ioctl.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6 2010-02-11 14:05:55 -08:00
dcache.c libfs: move EXPORT_SYMBOL for d_alloc_name 2009-12-16 12:16:48 -05:00
dcookies.c [CVE-2009-0029] System call wrapper special cases 2009-01-14 14:15:18 +01:00
direct-io.c dio: fix use-after-free 2009-12-17 04:52:13 -05:00
drop_caches.c sysctl: remove "struct file *" argument of ->proc_handler 2009-09-24 07:21:04 -07:00
eventfd.c eventfd - allow atomic read and waitqueue remove 2010-01-25 12:26:38 -02:00
eventpoll.c anonfd: Allow making anon files read-only 2009-12-22 12:27:34 -05:00
exec.c fs/exec.c: restrict initial stack space expansion to rlimit 2010-02-11 13:59:43 -08:00
fcntl.c Fix race in tty_fasync() properly 2010-02-07 10:26:01 -08:00
fifo.c
…
file.c headers: remove sched.h from interrupt.h 2009-10-11 11:20:58 -07:00
file_table.c Take ima_file_free() to proper place. 2010-02-07 03:07:29 -05:00
filesystems.c fs: Mark get_filesystem_list() as __init function. 2009-04-20 23:02:52 -04:00
fs-writeback.c writeback: add missing kernel-doc notation 2010-01-02 10:09:44 -08:00
fs_struct.c Get rid of indirect include of fs_struct.h 2009-03-31 23:00:27 -04:00
generic_acl.c make generic_acl slightly more generic 2009-12-16 12:16:49 -05:00
inode.c kill I_LOCK 2009-12-17 11:03:25 -05:00
internal.h Fix f_flags/f_mode in case of lookup_instantiate_filp() from open(pathname, 3) 2009-12-22 12:27:34 -05:00
ioctl.c __generic_block_fiemap(): fix for files bigger than 4GB 2009-11-12 07:26:01 -08:00
ioprio.c [CVE-2009-0029] System call wrappers part 28 2009-01-14 14:15:30 +01:00
libfs.c libfs: move EXPORT_SYMBOL for d_alloc_name 2009-12-16 12:16:48 -05:00
locks.c const: make lock_manager_operations const 2009-09-22 07:17:25 -07:00
mbcache.c
…
mpage.c ext4: Properly initialize the buffer_head state 2009-05-13 15:13:42 -04:00
namei.c ima: rename ima_path_check to ima_file_check 2010-02-07 03:06:22 -05:00
namespace.c do_add_mount() should sanitize mnt_flags 2010-01-16 13:07:36 -05:00
nfsctl.c vfs: nfsctl.c un-used nfsd #includes 2009-12-14 18:12:11 -05:00
no-block.c
…
open.c Sanitize f_flags helpers 2009-12-22 12:27:34 -05:00
pipe.c fs: no games with DCACHE_UNHASHED 2009-12-17 10:51:40 -05:00
pnode.c
…
pnode.h
…
posix_acl.c CRED: Wrap task credential accesses in the filesystem subsystem 2008-11-14 10:39:05 +11:00
read_write.c sendfile(): check f_op.splice_write() rather than f_op.sendpage() 2009-11-04 09:09:52 +01:00
read_write.h
…
readdir.c [CVE-2009-0029] System call wrappers part 32 2009-01-14 14:15:31 +01:00
select.c headers: remove sched.h from poll.h 2009-10-04 15:05:10 -07:00
seq_file.c vfs: seq_file: add helpers for data filling 2009-09-24 07:47:35 -04:00
signalfd.c anonfd: Allow making anon files read-only 2009-12-22 12:27:34 -05:00
splice.c sendfile(): check f_op.splice_write() rather than f_op.sendpage() 2009-11-04 09:09:52 +01:00
stack.c VFS/fsstack: handle 32-bit smp + preempt + large files in fsstack_copy_inode_size 2009-12-17 10:58:17 -05:00
stat.c Add unlocked version of inode_add_bytes() function 2009-12-23 13:33:54 +01:00
super.c vfs: get_sb_single() - do not pass options twice 2009-12-23 11:23:43 -08:00
sync.c fold do_sync_file_range into sys_sync_file_range 2009-12-17 11:03:25 -05:00
timerfd.c anonfd: Allow making anon files read-only 2009-12-22 12:27:34 -05:00
utimes.c [CVE-2009-0029] System call wrappers part 30 2009-01-14 14:15:30 +01:00
xattr.c sanitize xattr handler prototypes 2009-12-16 12:16:49 -05:00
xattr_acl.c VFS: Use GFP_NOFS in posix_acl_from_xattr() 2009-12-03 11:48:07 +00:00