David Brownell a4b1d50e61 RTCs: handle NVRAM better ... Several of the RTC drivers are exporting binary "nvram" files in sysfs. Such NVRAM (or on many systems, EEPROM) data is often initialized during system manufacture to hold data about identity (serial numbers, Ethernet addresses, etc), configuration, calibration, and so forth. This patch improves integrity and security of those files: - Correctly initializes the size in one of the two cases where that was not yet being done. - Improves system security/integrity by making this state not be world-writable by default. Letting arbitrary userspace code mangle such state by default is at least Not A Good Thing; and it could sometimes be worse, depending on the particular data that might be corrupted. (I disregard the paranoiac "don't let anyone read it either" approach. Anyone storing passwords in such memory doesn't really care about security.) Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Acked-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Cc: Torsten Ertbjerg Rasmussen <tr@newtec.dk> Cc: Mark Zhan <rongkai.zhan@windriver.com> Cc: Thomas Hommel <thomas.hommel@gefanuc.com> Acked-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2007-11-14 18:45:36 -08:00
..
acorn/char	unicode diacritics support	2007-10-17 08:42:52 -07:00
acpi	Fix Oops in toshiba_acpi error return path	2007-11-14 18:45:36 -08:00
amba
ata	libata: Don't fail device revalidation for bad _GTF methods	2007-11-10 00:31:27 -05:00
atm	Eliminate pointless casts from void* in a few driver irq handlers.	2007-10-23 19:53:16 -04:00
auxdisplay
base	cleanup asm/scatterlist.h includes	2007-11-02 08:47:06 +01:00
block	[NET]: Add the helper kernel_sock_shutdown()	2007-11-12 18:10:39 -08:00
bluetooth	[Bluetooth] Add generic driver for Bluetooth USB devices	2007-10-22 02:59:46 -07:00
cdrom	SG: audit of drivers that use blk_rq_map_sg()	2007-10-24 13:21:21 +02:00
char	[TTY]: Fix network driver interactions with TCGET/SET calls.	2007-11-07 04:14:19 -08:00
clocksource
connector	[CONNECTOR]: Fix a spurious kfree_skb() call	2007-10-30 21:29:47 -07:00
cpufreq
cpuidle	cpuidle: remove unused exports	2007-10-29 17:27:50 -04:00
crypto	[CRYPTO] users: Fix up scatterlist conversion errors	2007-10-27 00:52:07 -07:00
dca	I/OAT: Add DCA services	2007-10-16 09:43:09 -07:00
dio
dma	Remove bogus default y for DMAR and NET_DMA	2007-10-30 08:06:55 -07:00
edac	NULL terminate the pci_device_ids in pasemi_edac	2007-10-19 11:53:56 -07:00
eisa	signedness: module_param_array nump argument	2007-10-14 12:41:52 -07:00
firewire	firewire: fw-sbp2: fix refcounting	2007-11-07 01:59:28 +01:00
firmware	define global BIT macro	2007-10-19 11:53:42 -07:00
hid	HID: Don't access input_dev->private directly	2007-10-31 13:30:35 +01:00
hwmon	hwmon: (i5k_amb) Convert macros to C functions	2007-11-08 08:42:47 -05:00
i2c	typo fixes	2007-10-20 01:34:40 +02:00
ide	ide: remove stale/incorrect comment from setup-pci.c	2007-11-13 22:09:16 +01:00
ieee1394	ieee1394: iso and async streams: s/g list fix	2007-11-04 14:31:16 +01:00
infiniband	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband	2007-10-30 15:26:56 -07:00
input	Use i8253.c lock for PC speaker on MIPS, too.	2007-11-02 19:39:18 -07:00
isdn	i4l: errors with assignments in if	2007-11-05 15:12:31 -08:00
kvm	KVM: SVM: Intercept the 'invd' and 'wbinvd' instructions	2007-11-08 12:05:45 +02:00
leds	leds: bugfixes for leds-gpio	2007-11-05 21:54:41 +00:00
lguest	virtio: Force use of power-of-two for descriptor ring sizes	2007-11-12 13:59:40 +11:00
macintosh	[POWERPC] windfarm: Fix windfarm thread freezer interaction	2007-11-08 14:15:34 +11:00
mca
md	Add UNPLUG traces to all appropriate places	2007-11-09 13:41:32 +01:00
media	V4L/DVB (6548): pvrusb2: Fix oops on module removal	2007-11-04 21:41:30 -02:00
message	i2o: debug messages corrected	2007-11-05 15:12:31 -08:00
mfd	typo fixes	2007-10-20 01:34:40 +02:00
misc	fujitsu-laptop.c: remove dead code	2007-10-25 17:43:46 -04:00
mmc	Add missing "\n" to log message	2007-11-10 11:59:49 +01:00
mtd	Eliminate pointless casts from void* in a few driver irq handlers.	2007-10-23 19:53:16 -04:00
net	[NET]: Move unneeded data to initdata section.	2007-11-13 03:23:50 -08:00
nubus
of	[SPARC/64]: Consolidate of_register_driver	2007-10-17 21:17:42 -07:00
oprofile
parisc	parisc: fix sg_page() fallout	2007-10-23 09:49:31 +02:00
parport	[PARPORT] Remove unused 'irq' argument from parport irq functions	2007-10-23 19:53:16 -04:00
pci	PCI: Add Kconfig option to disable deprecated pci_find_* API	2007-11-05 13:35:17 -08:00
pcmcia	remove asm/bitops.h includes	2007-10-19 11:53:41 -07:00
pnp	PNP: add debug message for adding new device	2007-10-17 08:43:04 -07:00
power	Merge git://git.infradead.org/battery-2.6	2007-10-22 19:20:52 -07:00
ps3	remove asm/bitops.h includes	2007-10-19 11:53:41 -07:00
rapidio
rtc	RTCs: handle NVRAM better	2007-11-14 18:45:36 -08:00
s390	[S390] Fix priority mistakes in drivers/s390/cio/cmf.c	2007-11-05 11:10:17 +01:00
sbus	vfc_dev conversion to mutex: fallout	2007-10-20 15:04:06 -07:00
scsi	PCI: Add Kconfig option to disable deprecated pci_find_* API	2007-11-05 13:35:17 -08:00
serial	Merge master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6	2007-11-09 15:25:29 -08:00
sh	superhyway: Handle device_register() retval properly.	2007-11-07 11:13:55 +09:00
sn
spi	fix abuses of ptrdiff_t	2007-10-29 07:41:33 -07:00
ssb	ssb: Fix PCMCIA-host lowlevel bus access	2007-11-10 22:01:53 -08:00
tc	lk201: remove obsolete driver	2007-10-17 08:42:57 -07:00
telephony	telephony: phonedev panics if unregistering device not registered [Bug 9266]	2007-11-05 15:12:33 -08:00
uio
usb	cleanup asm/scatterlist.h includes	2007-11-02 08:47:06 +01:00
video	[ARM] 4645/1: Cyberpro: Trivial fix to restore 16bpp mode.	2007-11-08 23:29:36 +00:00
virtio	virtio: Force use of power-of-two for descriptor ring sizes	2007-11-12 13:59:40 +11:00
w1	Kbuild/doc: fix links to Documentation files	2007-10-30 14:26:30 -07:00
watchdog	Merge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog	2007-11-02 19:36:26 -07:00
xen	Add missing newlines to some uses of dev_<level> messages	2007-10-18 14:37:28 -07:00
zorro	Convert files to UTF-8 and some cleanups	2007-10-19 23:21:04 +02:00
Kconfig	Virtio interface	2007-10-23 15:49:54 +10:00
Makefile	Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6	2007-10-23 16:37:29 -07:00