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linux-stable/fs/cifs
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Jan Kara b092b3efc7 cifs: Fix race between hole punch and page fault 
Cifs has a following race between hole punching and page fault:

CPU1                                            CPU2
smb3_fallocate()
  smb3_punch_hole()
    truncate_pagecache_range()
                                                filemap_fault()
                                                  - loads old data into the
                                                    page cache
    SMB2_ioctl(..., FSCTL_SET_ZERO_DATA, ...)

And now we have stale data in the page cache. Fix the problem by locking
out faults (as well as reads) using mapping->invalidate_lock while hole
punch is running.

CC: Steve French <sfrench@samba.org>
CC: linux-cifs@vger.kernel.org
Signed-off-by: Jan Kara <jack@suse.cz>
2021-07-13 14:29:01 +02:00
..
asn1.c
cifs: decoding negTokenInit with generic ASN1 decoder
2021-06-20 21:28:17 -05:00
cache.c
cifs: use SPDX-Licence-Identifier
2021-06-20 21:28:17 -05:00
cifs_debug.c
cifs: convert list_for_each to entry variant in cifs_debug.c
2021-06-20 21:28:17 -05:00
cifs_debug.h
cifs: use SPDX-Licence-Identifier
2021-06-20 21:28:17 -05:00
cifs_dfs_ref.c
cifs: prevent NULL deref in cifs_compose_mount_options()
2021-07-09 12:57:05 -05:00
cifs_fs_sb.h
cifs: use SPDX-Licence-Identifier
2021-06-20 21:28:17 -05:00
cifs_ioctl.h
cifs: use SPDX-Licence-Identifier
2021-06-20 21:28:17 -05:00
cifs_spnego_negtokeninit.asn1
cifs: decoding negTokenInit with generic ASN1 decoder
2021-06-20 21:28:17 -05:00
cifs_spnego.c
cifs: use SPDX-Licence-Identifier
2021-06-20 21:28:17 -05:00
cifs_spnego.h
cifs: use SPDX-Licence-Identifier
2021-06-20 21:28:17 -05:00
cifs_swn.c
smb3: fix uninitialized value for port in witness protocol move
2021-06-20 21:28:17 -05:00
cifs_swn.h
cifs: simplify SWN code with dummy funcs instead of ifdefs
2021-04-25 16:28:22 -05:00
cifs_unicode.c
Convert trailing spaces and periods in path components
2020-10-11 23:57:18 -05:00
cifs_unicode.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
cifs_uniupr.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
cifsacl.c
smb3: fix possible access to uninitialized pointer to DACL
2021-06-23 19:26:40 -05:00
cifsacl.h
cifs: use SPDX-Licence-Identifier
2021-06-20 21:28:17 -05:00
cifsencrypt.c
cifs: use SPDX-Licence-Identifier
2021-06-20 21:28:17 -05:00
cifsfs.c
SMB3.1.1: Add support for negotiating signing algorithm
2021-07-09 12:48:58 -05:00
cifsfs.h
cifs: update internal version number
2021-07-09 13:03:36 -05:00
cifsglob.h
SMB3.1.1: Add support for negotiating signing algorithm
2021-07-09 12:48:58 -05:00
cifspdu.h
cifs: clarify SMB1 code for UnixCreateHardLink
2021-07-02 18:36:23 -05:00
cifsproto.h
cifs: use SPDX-Licence-Identifier
2021-06-20 21:28:17 -05:00
cifsroot.c
cifs: Standardize logging output
2020-06-01 00:10:18 -05:00
cifssmb.c
CIFS: Clarify SMB1 code for POSIX Lock
2021-07-07 16:43:17 -05:00
connect.c
cifs: make locking consistent around the server session status
2021-07-02 18:35:25 -05:00
dfs_cache.c
cifs: fix check of dfs interlinks
2021-06-20 21:28:17 -05:00
dfs_cache.h
cifs: handle different charsets in dfs cache
2021-06-20 21:28:16 -05:00
dir.c
cifs: missing null check for newinode pointer
2021-06-23 19:24:30 -05:00
dns_resolve.c
cifs: use SPDX-Licence-Identifier
2021-06-20 21:28:17 -05:00
dns_resolve.h
cifs: use SPDX-Licence-Identifier
2021-06-20 21:28:17 -05:00
export.c
cifs: use SPDX-Licence-Identifier
2021-06-20 21:28:17 -05:00
file.c
cifs: use SPDX-Licence-Identifier
2021-06-20 21:28:17 -05:00
fs_context.c
cifs: use helpers when parsing uid/gid mount options and validate them
2021-07-08 18:25:04 -05:00
fs_context.h
cifs: use helpers when parsing uid/gid mount options and validate them
2021-07-08 18:25:04 -05:00
fscache.c
cifs: use SPDX-Licence-Identifier
2021-06-20 21:28:17 -05:00
fscache.h
cifs: use SPDX-Licence-Identifier
2021-06-20 21:28:17 -05:00
inode.c
cifs: fix SMB1 error path in cifs_get_file_info_unix
2021-06-20 21:28:17 -05:00
ioctl.c
cifs: use SPDX-Licence-Identifier
2021-06-20 21:28:17 -05:00
Kconfig
cifs: decoding negTokenInit with generic ASN1 decoder
2021-06-20 21:28:17 -05:00
link.c
cifs: use SPDX-Licence-Identifier
2021-06-20 21:28:17 -05:00
Makefile
cifs: decoding negTokenInit with generic ASN1 decoder
2021-06-20 21:28:17 -05:00
misc.c
cifs: use SPDX-Licence-Identifier
2021-06-20 21:28:17 -05:00
netlink.c
cifs: Constify static struct genl_ops
2021-06-20 21:28:16 -05:00
netlink.h
cifs: Register generic netlink family
2020-12-14 09:16:22 -06:00
netmisc.c
cifs`: handle ERRBaduid for SMB1
2020-08-02 18:00:25 -05:00
nterr.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61
2019-05-24 17:36:45 +02:00
nterr.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61
2019-05-24 17:36:45 +02:00
ntlmssp.h
cifs: use SPDX-Licence-Identifier
2021-06-20 21:28:17 -05:00
readdir.c
SMB3: Add new info level for query directory
2021-06-23 13:05:17 -05:00
rfc1002pdu.h
cifs: use SPDX-Licence-Identifier
2021-06-20 21:28:17 -05:00
sess.c
cifs: use SPDX-Licence-Identifier
2021-06-20 21:28:17 -05:00
smb1ops.c
cifs: constify path argument of ->make_node()
2021-04-25 16:28:23 -05:00
smb2file.c
cifs: use SPDX-Licence-Identifier
2021-06-20 21:28:17 -05:00
smb2glob.h
cifs: use SPDX-Licence-Identifier
2021-06-20 21:28:17 -05:00
smb2inode.c
cifs: use SPDX-Licence-Identifier
2021-06-20 21:28:17 -05:00
smb2maperror.c
cifs: use SPDX-Licence-Identifier
2021-06-20 21:28:17 -05:00
smb2misc.c
cifs: fix NULL dereference in smb2_check_message()
2021-06-23 13:04:36 -05:00
smb2ops.c
cifs: Fix race between hole punch and page fault
2021-07-13 14:29:01 +02:00
smb2pdu.c
SMB3.1.1: Add support for negotiating signing algorithm
2021-07-09 12:48:58 -05:00
smb2pdu.h
SMB3.1.1: Add support for negotiating signing algorithm
2021-07-09 12:48:58 -05:00
smb2proto.h
cifs: use SPDX-Licence-Identifier
2021-06-20 21:28:17 -05:00
smb2status.h
cifs: use SPDX-Licence-Identifier
2021-06-20 21:28:17 -05:00
smb2transport.c
cifs: use SPDX-Licence-Identifier
2021-06-20 21:28:17 -05:00
smbdirect.c
smbdirect: missing rc checks while waiting for rdma events
2021-06-22 12:08:32 -05:00
smbdirect.h
cifs: smbd: Do not schedule work to send immediate packet on every receive
2020-04-07 12:41:16 -05:00
smbencrypt.c
fs: cifs: move from the crypto cipher API to the new DES library interface
2019-08-22 14:57:34 +10:00
smberr.h
cifs: use SPDX-Licence-Identifier
2021-06-20 21:28:17 -05:00
smbfsctl.h
cifs: use SPDX-Licence-Identifier
2021-06-20 21:28:17 -05:00
trace.c
smb3: Cleanup license mess
2019-01-24 09:37:33 -06:00
trace.h
cifs: fix string declarations and assignments in tracepoints
2021-05-27 14:04:32 -05:00
transport.c
cifs: make locking consistent around the server session status
2021-07-02 18:35:25 -05:00
unc.c
cifs: don't cargo-cult strndup()
2021-04-25 16:28:23 -05:00
winucase.c
Replace HTTP links with HTTPS ones: CIFS
2020-07-05 14:23:38 -06:00
xattr.c
cifs: use SPDX-Licence-Identifier
2021-06-20 21:28:17 -05:00