Joe Perches cb1f69d53a sysfs: Add sysfs_emit and sysfs_emit_at to format sysfs output ... commit 2efc459d06 upstream. Output defects can exist in sysfs content using sprintf and snprintf. sprintf does not know the PAGE_SIZE maximum of the temporary buffer used for outputting sysfs content and it's possible to overrun the PAGE_SIZE buffer length. Add a generic sysfs_emit function that knows that the size of the temporary buffer and ensures that no overrun is done. Add a generic sysfs_emit_at function that can be used in multiple call situations that also ensures that no overrun is done. Validate the output buffer argument to be page aligned. Validate the offset len argument to be within the PAGE_SIZE buf. Signed-off-by: Joe Perches <joe@perches.com> Link: https://lore.kernel.org/r/884235202216d464d61ee975f7465332c86f76b2.1600285923.git.joe@perches.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-03-07 12:19:01 +01:00
..
caching	fscache: Pass object size in rather than calling back for it	2018-04-06 14:05:14 +01:00
cifs	smb3: update readme to correct information about /proc/fs/cifs/Stats	2018-08-07 14:20:23 -05:00
configfs
ext4	docs: fix up the obviously obsolete bits in the new ext4 documentation	2018-07-29 16:35:23 -04:00
nfs	ipconfig: Write NTP server IPs to /proc/net/ipconfig/ntp_servers	2018-04-24 13:40:42 -04:00
pohmelfs
00-INDEX	Staging/IIO patches for 4.18-rc1	2018-06-09 10:32:39 -07:00
9p.txt
adfs.txt
affs.txt	affs: fix basic permission bits to actually work	2020-09-09 19:04:30 +02:00
afs.txt	afs: Implement @sys substitution handling	2018-04-09 21:12:31 +01:00
autofs-mount-control.txt	autofs: use autofs instead of autofs4 in documentation	2018-06-07 17:34:39 -07:00
autofs.txt	autofs: use autofs instead of autofs4 in documentation	2018-06-07 17:34:39 -07:00
automount-support.txt	autofs: use autofs instead of autofs4 in documentation	2018-06-07 17:34:39 -07:00
befs.txt
bfs.txt
btrfs.txt
ceph.txt	ceph: update description of some mount options	2018-06-04 20:46:02 +02:00
coda.txt
conf.py
cramfs.txt	cramfs: rehabilitate it	2017-10-15 00:47:23 -04:00
dax.txt	powerpc/cell: Remove axonram driver	2018-01-28 17:00:36 +11:00
debugfs.txt
devpts.txt
directory-locking
dlmfs.txt
dnotify.txt	Documentation: fix selftests related file refs	2017-10-19 12:58:21 -06:00
ecryptfs.txt
efivarfs.txt
exofs.txt
ext2.txt	fs/*/Kconfig: drop links to 404-compliant http://acl.bestbits.at	2018-01-01 12:45:37 -07:00
ext3.txt
f2fs.txt	f2fs: support fault_type mount option	2018-08-13 10:48:17 -07:00
fiemap.txt
files.txt
fscrypt.rst	fscrypt: return -EXDEV for incompatible rename or link into encrypted dir	2020-11-05 11:08:35 +01:00
fuse-io.txt	fuse: add writeback documentation	2018-03-20 17:11:45 +01:00
fuse.txt
gfs2-glocks.txt	GFS2: Minor improvements to comments and documentation	2018-04-12 10:07:51 -07:00
gfs2-uevents.txt
gfs2.txt
hfs.txt
hfsplus.txt
hpfs.txt
index.rst	docs: create filesystem internal section	2018-07-29 16:14:02 -04:00
inotify.txt
isofs.txt
jfs.txt
Locking	overlayfs update for 4.19	2018-08-21 18:19:09 -07:00
locks.txt
mandatory-locking.txt
nilfs2.txt	MAINTAINERS, nilfs2: change project home URLs	2018-01-13 10:42:48 -08:00
ntfs.txt
ocfs2-online-filecheck.txt
ocfs2.txt
omfs.txt
orangefs.txt	Orangefs: documentation updates	2018-04-04 14:05:48 -04:00
overlayfs.txt	ovl: fix regression caused by overlapping layers detection	2019-09-21 07:17:14 +02:00
path-lookup.md	autofs: use autofs instead of autofs4 in documentation	2018-06-07 17:34:39 -07:00
path-lookup.txt
porting	cifs_atomic_open(): fix double-put on late allocation failure	2020-03-18 07:14:21 +01:00
proc.txt	mm, thp, proc: report THP eligibility for each vma	2019-12-17 20:35:45 +01:00
qnx6.txt
quota.txt
ramfs-rootfs-initramfs.txt	initramfs: move gen_initramfs_list.sh from scripts/ to usr/	2018-08-22 23:21:44 +09:00
relay.txt	Documentation : Update relay function types	2018-07-10 15:11:00 -06:00
romfs.txt
seq_file.txt	seq_file: document how per-entry resources are managed.	2021-03-04 09:39:56 +01:00
sharedsubtree.txt
spufs.txt
squashfs.txt
sysfs-pci.txt
sysfs-tagging.txt
sysfs.txt	sysfs: Add sysfs_emit and sysfs_emit_at to format sysfs output	2021-03-07 12:19:01 +01:00
sysv-fs.txt
tmpfs.txt	docs/vm: move numa_memory_policy.rst to Documentation/admin-guide/mm	2018-05-08 09:31:31 -06:00
ubifs.txt
udf.txt	udf: Remove never implemented mount options	2018-02-27 10:25:33 +01:00
ufs.txt
vfat.txt	Documentation/filesystems/vfat.txt: fix a remark that implies UCS2	2017-12-21 13:39:28 -07:00
vfs.txt	vfs: add the fadvise() file operation	2018-08-30 17:08:35 +02:00
xfs-delayed-logging-design.txt
xfs-self-describing-metadata.txt
xfs.txt	xfs: remove deprecated barrier/nobarrier mount	2018-07-26 10:15:17 -07:00