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openwrtv3/target/linux
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Felix Fietkau 3848e6a246 kernel: crashlog: Avoid out-of-bounds write 
vsnprintf returns the number of chars that would have been written, not
the actual number of chars written. This can lead to crashlog_buf->len
being too big which in turn can lead to get_maxlen() returning negative
numbers. The length argument of kmsg_dump_get_buffer will be casted to
a size_t which makes a negative input a big positive number allowing
kmsg_dump_get_buffer to write out of bounds.

Fix this by using vscnprintf which returns the actually written number
of chars.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>

SVN-Revision: 37820
2013-08-21 20:59:25 +00:00
..
adm5120 targets: fix remaining targets for initramfs builds 2013-06-28 22:56:34 +00:00
adm8668 targets: prepare for supporting normal and initramfs images 2013-06-27 19:58:31 +00:00
amazon target: don't build jffs2 nor images by default 2013-06-05 20:58:59 +00:00
ar7 kernel: update 3.9 to 3.9.11 2013-07-22 15:30:56 +00:00
ar71xx ar71xx: add support for hornet-ub-x2 2013-08-15 00:57:47 +00:00
at91 build: unify target independent optimization options 2013-07-29 09:38:29 +00:00
atheros kernel: update 3.10 to 3.10.3 2013-07-26 07:19:58 +00:00
au1000 targets: prepare for supporting normal and initramfs images 2013-06-27 19:58:31 +00:00
avr32 targets: prepare for supporting normal and initramfs images 2013-06-27 19:58:31 +00:00
bcm53xx kernel: update remaning platforms accidentally left out of r37617 2013-07-30 08:00:25 +00:00
brcm47xx brcm47xx: fix typo in Broadcom-bgmac-b43 profile name 2013-08-17 13:41:22 +00:00
brcm63xx kernel: update 3.9 to 3.9.11 2013-07-22 15:30:56 +00:00
brcm2708 kernel: update remaning platforms accidentally left out of r37617 2013-07-30 08:00:25 +00:00
cns3xxx build: unify target independent optimization options 2013-07-29 09:38:29 +00:00
cns21xx build: unify target independent optimization options 2013-07-29 09:38:29 +00:00
cobalt build: unify target independent optimization options 2013-07-29 09:38:29 +00:00
ep93xx kernel: do not build FW_LOADER as a module. 2013-08-04 09:41:10 +00:00
gemini build: unify target independent optimization options 2013-07-29 09:38:29 +00:00
generic kernel: crashlog: Avoid out-of-bounds write 2013-08-21 20:59:25 +00:00
imx6 kernel: remove imx-sdma-fw because of license issues 2013-08-12 10:48:05 +00:00
imx23 imx23: add missing DTS config for lradc 2013-08-03 10:37:25 +00:00
iop32x targets: prepare for supporting normal and initramfs images 2013-06-27 19:58:31 +00:00
ixp4xx kernel: update remaning platforms accidentally left out of r37617 2013-07-30 08:00:25 +00:00
kirkwood targets: prepare for supporting normal and initramfs images 2013-06-27 19:58:31 +00:00
lantiq lantiq: fix TD-W8970 image generation to work with the new tool 2013-08-06 16:25:45 +00:00
malta malta: refresh configuration 2013-08-21 00:36:53 +00:00
mcs814x mcs814x: enable POSIX file locking 2013-08-09 20:45:17 +00:00
mpc52xx kernel: do not build FW_LOADER as a module. 2013-08-04 09:41:10 +00:00
mpc83xx build: unify target independent optimization options 2013-07-29 09:38:29 +00:00
mpc85xx kernel: update remaning platforms accidentally left out of r37617 2013-07-30 08:00:25 +00:00
mvebu linux: move more ARM_ERRATA symbols to the generic config 2013-07-20 07:43:54 +00:00
octeon octeon: add a few missing symbols to the kernel config file 2013-08-05 10:42:09 +00:00
omap4 linux: move more ARM_ERRATA symbols to the generic config 2013-07-20 07:43:54 +00:00
omap24xx build: unify target independent optimization options 2013-07-29 09:38:29 +00:00
orion build: unify target independent optimization options 2013-07-29 09:38:29 +00:00
ppc40x build: unify target independent optimization options 2013-07-29 09:38:29 +00:00
ppc44x build: unify target independent optimization options 2013-07-29 09:38:29 +00:00
pxa targets: prepare for supporting normal and initramfs images 2013-06-27 19:58:31 +00:00
ramips ramips: DIR-610-A1 Support 2013-08-14 19:35:27 +00:00
rb532 targets: prepare for supporting normal and initramfs images 2013-06-27 19:58:31 +00:00
realview kernel: update remaning platforms accidentally left out of r37617 2013-07-30 08:00:25 +00:00
sibyte kernel: do not build FW_LOADER as a module. 2013-08-04 09:41:10 +00:00
sparc target: don't build jffs2 nor images by default 2013-06-05 20:58:59 +00:00
uml kernel: update linux 3.8 to 3.8.13 2013-05-26 16:02:31 +00:00
x86 x86: Fix CONFIG_X86_GRUB_SERIAL="" 2013-08-10 18:35:29 +00:00
xburst kernel: update remaning platforms accidentally left out of r37617 2013-07-30 08:00:25 +00:00
Makefile