linux_dsm_epyc7002/fs/btrfs
Liu Bo 415b35a55b Btrfs: fix error handling in map_private_extent_buffer
map_private_extent_buffer() can return -EINVAL in two different cases,
1. when the requested contents span two pages if nodesize is larger
   than pagesize,
2. when it detects something insane.

The 2nd one used to be only a WARN_ON(1), and we decided to return a error
to callers, but we didn't fix up all its callers, which will be
addressed by this patch.

Without this, btrfs may end up with 'general protection', ie.
reading invalid memory.

Reported-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Chris Mason <clm@fb.com>
2016-06-23 10:44:40 -07:00
..
tests Btrfs: fix error return code in btrfs_init_test_fs() 2016-06-23 10:44:39 -07:00
acl.c
async-thread.c
async-thread.h
backref.c Merge branch 'cleanups-4.7' into for-chris-4.7-20160525 2016-05-25 22:51:03 +02:00
backref.h
btrfs_inode.h Merge branch 'cleanups-4.7' into for-chris-4.7-20160525 2016-05-25 22:51:03 +02:00
check-integrity.c btrfs: Use correct format specifier 2016-06-17 18:32:40 +02:00
check-integrity.h
compression.c btrfs: make find_workspace warn if there are no workspaces 2016-05-10 09:46:16 +02:00
compression.h
ctree.c Btrfs: fix error handling in map_private_extent_buffer 2016-06-23 10:44:40 -07:00
ctree.h Btrfs: track transid for delayed ref flushing 2016-06-22 17:54:18 -07:00
delayed-inode.c btrfs: GFP_NOFS does not GFP_HIGHMEM 2016-05-10 09:44:21 +02:00
delayed-inode.h
delayed-ref.c
delayed-ref.h btrfs: fix string and comment grammatical issues and typos 2016-05-25 22:35:14 +02:00
dev-replace.c Merge branch 'cleanups-4.7' into for-chris-4.7-20160525 2016-05-25 22:51:03 +02:00
dev-replace.h btrfs: refactor btrfs_dev_replace_start for reuse 2016-04-28 10:59:13 +02:00
dir-item.c
disk-io.c Btrfs: btrfs_check_super_valid: Allow 4096 as stripesize 2016-06-17 18:32:49 +02:00
disk-io.h Btrfs: self-tests: Support non-4k page size 2016-06-02 19:23:14 +02:00
export.c
export.h
extent_io.c Btrfs: fix error handling in map_private_extent_buffer 2016-06-23 10:44:40 -07:00
extent_io.h Btrfs: self-tests: Support non-4k page size 2016-06-02 19:23:14 +02:00
extent_map.c btrfs: fix string and comment grammatical issues and typos 2016-05-25 22:35:14 +02:00
extent_map.h
extent-tree.c btrfs: fix deadlock in delayed_ref_async_start 2016-06-22 17:54:18 -07:00
file-item.c btrfs: sink gfp parameter to set_extent_bits 2016-04-29 11:01:47 +02:00
file.c Btrfs: don't do nocow check unless we have to 2016-06-22 17:57:14 -07:00
free-space-cache.c Btrfs: self-tests: Support non-4k page size 2016-06-02 19:23:14 +02:00
free-space-cache.h btrfs: fix string and comment grammatical issues and typos 2016-05-25 22:35:14 +02:00
free-space-tree.c
free-space-tree.h
hash.c btrfs: advertise which crc32c implementation is being used at module load 2016-06-06 14:08:28 +02:00
hash.h btrfs: advertise which crc32c implementation is being used at module load 2016-06-06 14:08:28 +02:00
inode-item.c
inode-map.c
inode-map.h
inode.c Btrfs: track transid for delayed ref flushing 2016-06-22 17:54:18 -07:00
ioctl.c Merge branch 'cleanups-4.7' into for-chris-4.7-20160525 2016-05-25 22:51:03 +02:00
Kconfig
locking.c
locking.h
lzo.c
Makefile
math.h
ordered-data.c Btrfs: fix race setting block group readonly during device replace 2016-05-30 12:58:21 +01:00
ordered-data.h Btrfs: fix race setting block group readonly during device replace 2016-05-30 12:58:21 +01:00
orphan.c
print-tree.c
print-tree.h
props.c
props.h
qgroup.c btrfs: fix string and comment grammatical issues and typos 2016-05-25 22:35:14 +02:00
qgroup.h
raid56.c btrfs: fix string and comment grammatical issues and typos 2016-05-25 22:35:14 +02:00
raid56.h
rcu-string.h
reada.c Btrfs: fix race between readahead and device replace/removal 2016-05-30 12:58:18 +01:00
relocation.c Merge branch 'cleanups-4.7' into for-chris-4.7-20160525 2016-05-25 22:51:03 +02:00
root-tree.c Merge branch 'cleanups-4.7' into for-chris-4.7-20160525 2016-05-25 22:51:03 +02:00
scrub.c Btrfs: fix race setting block group back to RW mode during device replace 2016-05-30 12:58:24 +01:00
send.c Merge branch 'cleanups-4.7' into for-chris-4.7-20160525 2016-05-25 22:51:03 +02:00
send.h
struct-funcs.c btrfs: fix string and comment grammatical issues and typos 2016-05-25 22:35:14 +02:00
super.c btrfs: avoid blocking open_ctree from cleaner_kthread 2016-06-17 18:32:40 +02:00
sysfs.c btrfs: sysfs: protect reading label by lock 2016-05-06 15:22:49 +02:00
sysfs.h
transaction.c Btrfs: track transid for delayed ref flushing 2016-06-22 17:54:18 -07:00
transaction.h btrfs: account for non-CoW'd blocks in btrfs_abort_transaction 2016-06-17 18:32:40 +02:00
tree-defrag.c
tree-log.c Btrfs: check if extent buffer is aligned to sectorsize 2016-06-17 18:32:40 +02:00
tree-log.h
ulist.c btrfs: fix string and comment grammatical issues and typos 2016-05-25 22:35:14 +02:00
ulist.h
uuid-tree.c
volumes.c Btrfs: check if extent buffer is aligned to sectorsize 2016-06-17 18:32:40 +02:00
volumes.h Merge branch 'foreign/jeffm/uapi' into for-chris-4.7-20160516 2016-05-16 15:46:29 +02:00
xattr.c
xattr.h
zlib.c