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9bd0160d12
kernel_optimize_test/fs
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Marc Dionne 9bd0160d12 afs: Fix afs_find_server lookups for ipv4 peers 
afs_find_server tries to find a server that has an address that
matches the transport address of an rxrpc peer.  The code assumes
that the transport address is always ipv6, with ipv4 represented
as ipv4 mapped addresses, but that's not the case.  If the transport
family is AF_INET, srx->transport.sin6.sin6_addr.s6_addr32[] will
be beyond the actual ipv4 address and will always be 0, and all
ipv4 addresses will be seen as matching.

As a result, the first ipv4 address seen on any server will be
considered a match, and the server returned may be the wrong one.

One of the consequences is that callbacks received over ipv4 will
only be correctly applied for the server that happens to have the
first ipv4 address on the fs_addresses4 list.  Callbacks over ipv4
from all other servers are dropped, causing the client to serve stale
data.

This is fixed by looking at the transport family, and comparing ipv4
addresses based on a sockaddr_in structure rather than a sockaddr_in6.

Fixes: d2ddc776a4 ("afs: Overhaul volume and server record caching and fileserver rotation")
Signed-off-by: Marc Dionne <marc.dionne@auristor.com>
Signed-off-by: David Howells <dhowells@redhat.com>
2019-12-09 15:04:43 +00:00
..
9p
adfs
affs
afs afs: Fix afs_find_server lookups for ipv4 peers 2019-12-09 15:04:43 +00:00
autofs Merge branch 'next.autofs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2019-12-05 17:11:48 -08:00
befs
bfs
btrfs compat_ioctl: remove most of fs/compat_ioctl.c 2019-12-01 13:46:15 -08:00
cachefiles
ceph The two highlights are a set of improvements to how rbd read-only 2019-12-05 13:06:51 -08:00
cifs 9 cifs/smb3 fixes: two timestamp fixes, one oops fix (during oplock break) for stable, two fixes found in multichannel testing, two fixes for file create when using modeforsid mount parm 2019-12-08 12:12:18 -08:00
coda
configfs
cramfs
crypto
debugfs Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2019-12-06 09:06:58 -08:00
devpts
dlm
ecryptfs compat_ioctl: remove most of fs/compat_ioctl.c 2019-12-01 13:46:15 -08:00
efivarfs
efs
erofs
exportfs
ext2 \n 2019-11-30 11:16:07 -08:00
ext4 compat_ioctl: remove most of fs/compat_ioctl.c 2019-12-01 13:46:15 -08:00
f2fs compat_ioctl: remove most of fs/compat_ioctl.c 2019-12-01 13:46:15 -08:00
fat
freevxfs
fscache
fuse pipe: Fix iteration end check in fuse_dev_splice_write() 2019-12-06 13:57:04 -08:00
gfs2 GFS2 changes for this merge window: 2019-12-05 13:20:11 -08:00
hfs
hfsplus
hostfs
hpfs
hugetlbfs hugetlb: remove unused hstate in hugetlb_fault_mutex_hash() 2019-12-01 12:59:08 -08:00
iomap iomap: stop using ioend after it's been freed in iomap_finish_ioend() 2019-12-05 07:41:16 -08:00
isofs
jbd2 This merge window saw the the following new featuers added to ext4: 2019-11-30 10:53:02 -08:00
jffs2 Revert "jffs2: Fix possible null-pointer dereferences in jffs2_add_frag_to_fragtree()" 2019-11-29 11:29:58 +01:00
jfs
kernfs Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2019-12-06 09:06:58 -08:00
lockd
minix
nfs
nfs_common
nfsd This is a relatively quiet cycle for nfsd, mainly various bugfixes. 2019-12-07 16:56:00 -08:00
nilfs2
nls
notify compat_ioctl: remove most of fs/compat_ioctl.c 2019-12-01 13:46:15 -08:00
ntfs
ocfs2 Merge branch 'akpm' (patches from Andrew) 2019-12-01 20:36:41 -08:00
omfs
openpromfs
orangefs orangefs: posix open permission checking... 2019-12-04 08:52:55 -05:00
overlayfs
proc fs/proc/Kconfig: fix indentation 2019-12-04 19:44:11 -08:00
pstore
qnx4
qnx6
quota Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2019-12-06 09:06:58 -08:00
ramfs
reiserfs
romfs
squashfs
sysfs
sysv
tracefs
ubifs
udf
ufs
unicode
verity
xfs Fixes for 5.5-rc1: 2019-12-07 17:05:33 -08:00
aio.c y2038: syscall implementation cleanups 2019-12-01 14:00:59 -08:00
anon_inodes.c
attr.c
bad_inode.c
binfmt_aout.c
binfmt_elf_fdpic.c
binfmt_elf.c fs/binfmt_elf.c: extract elf_read() function 2019-12-04 19:44:13 -08:00
binfmt_em86.c
binfmt_flat.c
binfmt_misc.c
binfmt_script.c
block_dev.c block: don't send uevent for empty disk when not invalidating 2019-12-02 18:49:30 -07:00
buffer.c fs/buffer.c: include internal.h for missing declarations 2019-12-01 06:29:17 -08:00
char_dev.c
compat_binfmt_elf.c
compat_ioctl.c New code for 5.5: 2019-12-02 14:46:22 -08:00
compat.c
coredump.c
d_path.c
dax.c New code for 5.5: 2019-11-30 10:44:49 -08:00
dcache.c Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2019-12-08 11:08:28 -08:00
dcookies.c
direct-io.c fs/direct-io.c: keep dio_warn_stale_pagecache() when CONFIG_BLOCK=n 2019-12-01 06:29:18 -08:00
drop_caches.c
eventfd.c
eventpoll.c fs/epoll: remove unnecessary wakeups of nested epoll 2019-12-04 19:44:13 -08:00
exec.c Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-12-03 12:20:25 -08:00
fcntl.c Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2019-12-08 11:08:28 -08:00
fhandle.c
file_table.c
file.c Revert "vfs: properly and reliably lock f_pos in fdget_pos()" 2019-11-26 11:34:06 -08:00
filesystems.c
fs_context.c
fs_parser.c
fs_pin.c
fs_struct.c
fs_types.c
fs-writeback.c
fsopen.c
inode.c
internal.h
io_uring.c io_uring: fix a typo in a comment 2019-12-05 07:59:37 -07:00
io-wq.c io_uring: use current task creds instead of allocating a new one 2019-12-02 08:50:00 -07:00
io-wq.h io-wq: clear node->next on list deletion 2019-12-04 17:26:57 -07:00
ioctl.c New code for 5.5: 2019-12-02 14:46:22 -08:00
Kconfig
Kconfig.binfmt
libfs.c
locks.c
Makefile
mbcache.c
mount.h
mpage.c
namei.c Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2019-12-06 09:06:58 -08:00
namespace.c Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2019-12-08 11:08:28 -08:00
no-block.c
nsfs.c
open.c Revert "vfs: properly and reliably lock f_pos in fdget_pos()" 2019-11-26 11:34:06 -08:00
pipe.c pipe: don't use 'pipe_wait() for basic pipe IO 2019-12-07 13:53:09 -08:00
pnode.c
pnode.h
posix_acl.c
proc_namespace.c
read_write.c
readdir.c
select.c
seq_file.c
signalfd.c
splice.c pipe: remove 'waiting_writers' merging logic 2019-12-07 13:21:01 -08:00
stack.c
stat.c
statfs.c
super.c
sync.c
timerfd.c
userfaultfd.c Merge branch 'akpm' (patches from Andrew) 2019-12-01 20:36:41 -08:00
utimes.c
xattr.c