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fb770ae414
linux/fs
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Liu Bo fb770ae414 Btrfs: fix read_node_slot to return errors 
We use read_node_slot() to read btree node and it has two cases,
a) slot is out of range, which means 'no such entry'
b) we fail to read the block, due to checksum fails or corrupted
   content or not with uptodate flag.
But we're returning NULL in both cases, this makes it return -ENOENT
in case a) and return -EIO in case b), and this fixes its callers
as well as btrfs_search_forward() 's caller to catch the new errors.

The problem is reported by Peter Becker, and I can manage to
hit the same BUG_ON by mounting my fuzz image.

Reported-by: Peter Becker <floyd.net@gmail.com>
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2016-07-26 13:52:25 +02:00
..
9p 9p: use file_dentry() 2016-06-30 23:28:09 -04:00
adfs
affs affs: fix remount failure when there are no options changed 2016-05-28 16:50:24 -07:00
afs remove lots of IS_ERR_VALUE abuses 2016-05-27 15:26:11 -07:00
autofs4 autofs: don't get stuck in a loop if vfs_write() returns an error 2016-06-24 17:23:52 -07:00
befs fs/befs/io.c:befs_bread(): remove unneeded initialization to NULL 2016-05-23 17:04:14 -07:00
bfs more trivial ->iterate_shared conversions 2016-05-09 11:41:14 -04:00
btrfs Btrfs: fix read_node_slot to return errors 2016-07-26 13:52:25 +02:00
cachefiles FS-Cache: make check_consistency callback return int 2016-06-01 10:29:39 +02:00
ceph Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-07-01 15:20:11 -07:00
cifs File names with trailing period or space need special case conversion 2016-06-24 12:05:52 -05:00
coda introduce a parallel variant of ->iterate() 2016-05-02 19:49:29 -04:00
configfs configfs_readdir(): make safe under shared lock 2016-05-09 11:41:13 -04:00
cramfs more trivial ->iterate_shared conversions 2016-05-09 11:41:14 -04:00
crypto fscrypto/f2fs: allow fs-specific key prefix for fs encryption 2016-05-07 10:32:33 -07:00
debugfs debugfs: open_proxy_open(): avoid double fops release 2016-06-15 04:56:35 -07:00
devpts devpts: Make each mount of devpts an independent filesystem. 2016-06-05 10:36:01 -07:00
dlm mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros 2016-04-04 10:41:08 -07:00
ecryptfs Merge branch 'stacking-fixes' (vfs stacking fixes from Jann) 2016-06-10 12:10:02 -07:00
efivarfs fs/efivarfs/inode.c: use generic UUID library 2016-05-20 17:58:30 -07:00
efs fs/efs/super.c: fix return value 2016-05-20 17:58:30 -07:00
exofs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2016-05-17 17:05:30 -07:00
exportfs introduce a parallel variant of ->iterate() 2016-05-02 19:49:29 -04:00
ext2 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-05-27 17:14:05 -07:00
ext4 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-05-27 17:14:05 -07:00
f2fs switch xattr_handler->set() to passing dentry and inode separately 2016-05-27 15:39:43 -04:00
fat Merge branch 'work.preadv2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-05-17 15:05:23 -07:00
freevxfs more trivial ->iterate_shared conversions 2016-05-09 11:41:14 -04:00
fscache FS-Cache: wake write waiter after invalidating writes 2016-06-01 10:29:09 +02:00
fuse fuse: serialize dirops by default 2016-06-30 13:10:49 +02:00
gfs2 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-05-27 17:14:05 -07:00
hfs switch ->setxattr() to passing dentry and inode separately 2016-05-27 20:09:16 -04:00
hfsplus switch xattr_handler->set() to passing dentry and inode separately 2016-05-27 15:39:43 -04:00
hostfs hostfs: switch to ->iterate_shared() 2016-05-12 19:49:30 -04:00
hpfs hpfs: implement the show_options method 2016-05-28 16:50:24 -07:00
hugetlbfs mm, fs: remove remaining PAGE_CACHE_* and page_cache_{get,release} usage 2016-04-04 10:41:08 -07:00
isofs Merge branch 'ovl-fixes' into for-linus 2016-05-11 00:00:29 -04:00
jbd2 jbd2: get rid of superfluous __GFP_REPEAT 2016-06-24 17:23:52 -07:00
jffs2 switch xattr_handler->set() to passing dentry and inode separately 2016-05-27 15:39:43 -04:00
jfs switch xattr_handler->set() to passing dentry and inode separately 2016-05-27 15:39:43 -04:00
kernfs switch ->setxattr() to passing dentry and inode separately 2016-05-27 20:09:16 -04:00
lockd lockd: unregister notifier blocks if the service fails to come up completely 2016-06-30 16:35:07 -04:00
logfs logfs: no need to lock directory in lseek 2016-05-09 11:42:19 -04:00
minix simple local filesystems: switch to ->iterate_shared() 2016-05-02 19:49:32 -04:00
ncpfs mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros 2016-04-04 10:41:08 -07:00
nfs NFS: Fix another OPEN_DOWNGRADE bug 2016-06-28 16:55:34 -04:00
nfs_common
nfsd nfsd: check permissions when setting ACLs 2016-06-24 12:11:52 -04:00
nilfs2 fs/nilfs2: fix potential underflow in call to crc32_le 2016-06-24 17:23:52 -07:00
nls
notify fsnotify: avoid spurious EMFILE errors from inotify_init() 2016-05-19 19:12:14 -07:00
ntfs fs: simplify the generic_write_sync prototype 2016-05-01 19:58:39 -04:00
ocfs2 ocfs2: disable BUG assertions in reading blocks 2016-06-24 17:23:52 -07:00
omfs more trivial ->iterate_shared conversions 2016-05-09 11:41:14 -04:00
openpromfs more trivial ->iterate_shared conversions 2016-05-09 11:41:14 -04:00
orangefs switch xattr_handler->set() to passing dentry and inode separately 2016-05-27 15:39:43 -04:00
overlayfs ovl: warn instead of error if d_type is not supported 2016-07-03 09:39:31 +02:00
proc Merge branch 'stacking-fixes' (vfs stacking fixes from Jann) 2016-06-10 12:10:02 -07:00
pstore mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros 2016-04-04 10:41:08 -07:00
qnx4 more trivial ->iterate_shared conversions 2016-05-09 11:41:14 -04:00
qnx6 more trivial ->iterate_shared conversions 2016-05-09 11:41:14 -04:00
quota fs/quota: use nla_put_u64_64bit() 2016-04-26 12:00:48 -04:00
ramfs tmpfs/ramfs: fix VM_MAYSHARE mappings for NOMMU 2016-05-20 17:58:30 -07:00
reiserfs Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs 2016-06-19 07:05:14 -10:00
romfs romfs, squashfs: switch to ->iterate_shared() 2016-05-09 11:41:15 -04:00
squashfs romfs, squashfs: switch to ->iterate_shared() 2016-05-09 11:41:15 -04:00
sysfs
sysv simple local filesystems: switch to ->iterate_shared() 2016-05-02 19:49:32 -04:00
tracefs
ubifs UBIFS: Implement ->migratepage() 2016-06-23 00:29:53 +02:00
udf udf: Use correct partition reference number for metadata 2016-05-19 13:00:35 +02:00
ufs simple local filesystems: switch to ->iterate_shared() 2016-05-02 19:49:32 -04:00
xfs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-05-27 17:14:05 -07:00
aio.c aio: make aio_setup_ring killable 2016-05-23 17:04:14 -07:00
anon_inodes.c
attr.c
bad_inode.c switch ->setxattr() to passing dentry and inode separately 2016-05-27 20:09:16 -04:00
binfmt_aout.c fs: fix binfmt_aout.c build error 2016-05-28 16:34:59 -07:00
binfmt_elf_fdpic.c coredump: fix dumping through pipes 2016-06-07 22:07:09 -04:00
binfmt_elf.c coredump: fix dumping through pipes 2016-06-07 22:07:09 -04:00
binfmt_em86.c
binfmt_flat.c remove lots of IS_ERR_VALUE abuses 2016-05-27 15:26:11 -07:00
binfmt_misc.c
binfmt_script.c
block_dev.c DAX error handling for 4.7 2016-05-26 19:34:26 -07:00
buffer.c mm, page_alloc: avoid looking up the first zone in a zonelist twice 2016-05-19 19:12:14 -07:00
char_dev.c chrdev: emit a warning when we go below dynamic major range 2016-03-29 10:11:44 -07:00
compat_binfmt_elf.c
compat_ioctl.c Merge 4.5-rc4 into char-misc-next 2016-02-14 14:25:59 -08:00
compat.c Fix a number of bugs, most notably a potential stale data exposure 2016-05-24 12:55:26 -07:00
coredump.c coredump: fix dumping through pipes 2016-06-07 22:07:09 -04:00
dax.c dax: fix offset overflow in dax_io 2016-06-27 12:18:44 -07:00
dcache.c fix idiotic braino in d_alloc_parallel() 2016-06-20 10:07:42 -04:00
dcookies.c
direct-io.c direct-io: fix direct write stale data exposure from concurrent buffered read 2016-05-27 14:49:37 -07:00
drop_caches.c
eventfd.c eventfd: document lockless access in eventfd_poll 2016-03-22 15:36:02 -07:00
eventpoll.c fs: poll/select/recvmmsg: use timespec64 for timeout events 2016-05-19 19:12:14 -07:00
exec.c exec: make exec path waiting for mmap_sem killable 2016-05-23 17:04:14 -07:00
fcntl.c
fhandle.c fs/coredump: prevent fsuid=0 dumps into user-controlled directories 2016-03-22 15:36:02 -07:00
file_table.c
file.c give readdir(2)/getdents(2)/etc. uniform exclusion with lseek() 2016-05-02 19:49:28 -04:00
filesystems.c
fs_pin.c
fs_struct.c
fs-writeback.c mm,writeback: don't use memory reserves for wb_start_writeback 2016-05-20 17:58:30 -07:00
inode.c parallel lookups: actual switch to rwsem 2016-05-02 19:49:28 -04:00
internal.h much milder d_walk() race 2016-06-10 11:32:47 -04:00
ioctl.c
Kconfig dax: Make huge page handling depend of CONFIG_BROKEN 2016-05-19 15:13:17 -06:00
Kconfig.binfmt ELF/MIPS build fix 2016-05-23 17:04:14 -07:00
libfs.c lockless next_positive() 2016-06-20 17:11:29 -04:00
locks.c locks: use file_inode() 2016-07-01 10:24:18 -04:00
Makefile Merge tag 'ofs-pull-tag-1' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux 2016-03-26 12:59:04 -07:00
mbcache.c mbcache: add reusable flag to cache entries 2016-02-22 22:44:04 -05:00
mount.h
mpage.c mm, fs: remove remaining PAGE_CACHE_* and page_cache_{get,release} usage 2016-04-04 10:41:08 -07:00
namei.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-06-07 20:41:36 -07:00
namespace.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-07-01 15:20:11 -07:00
no-block.c
nsfs.c
open.c Merge branch 'work.const-path' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-05-17 14:41:03 -07:00
pipe.c mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros 2016-04-04 10:41:08 -07:00
pnode.c propogate_mnt: Handle the first propogated copy being a slave 2016-05-05 09:54:45 -05:00
pnode.h
posix_acl.c posix_acl: Add set_posix_acl 2016-06-24 12:11:34 -04:00
proc_namespace.c vfs: show_vfsstat: do not ignore errors from show_devname method 2016-03-16 13:09:08 -04:00
read_write.c Merge branch 'work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-05-18 11:46:23 -07:00
readdir.c restore killability of old mutex_lock_killable(&inode->i_mutex) users 2016-05-26 00:13:25 -04:00
select.c fs: poll/select/recvmmsg: use timespec64 for timeout events 2016-05-19 19:12:14 -07:00
seq_file.c Make file credentials available to the seqfile interfaces 2016-04-14 12:56:09 -07:00
signalfd.c
splice.c Merge branch 'ovl-fixes' into for-linus 2016-05-11 00:00:29 -04:00
stack.c
stat.c
statfs.c
super.c Merge branch 'master' into for-next 2016-04-18 11:18:55 +02:00
sync.c mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros 2016-04-04 10:41:08 -07:00
timerfd.c
userfaultfd.c userfaultfd: don't pin the user memory in userfaultfd_file_create() 2016-05-20 17:58:30 -07:00
utimes.c
xattr.c switch ->setxattr() to passing dentry and inode separately 2016-05-27 20:09:16 -04:00