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Martin Schwidefsky bcf4dd5f9e s390: fix test_fp_ctl inline assembly contraints 
The test_fp_ctl function is used to test if a given value is a valid
floating-point control. The inline assembly in test_fp_ctl uses an
incorrect constraint for the 'orig_fpc' variable. If the compiler
chooses the same register for 'fpc' and 'orig_fpc' the test_fp_ctl()
function always returns true. This allows user space to trigger
kernel oopses with invalid floating-point control values on the
signal stack.

This problem has been introduced with git commit 4725c86055
"s390: fix save and restore of the floating-point-control register"

Cc: stable@vger.kernel.org # v3.13+
Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2016-06-28 09:24:28 +02:00
..
alpha tree wide: get rid of __GFP_REPEAT for order-0 allocations part I 2016-06-24 17:23:52 -07:00
arc arc: get rid of superfluous __GFP_REPEAT 2016-06-24 17:23:52 -07:00
arm tree wide: get rid of __GFP_REPEAT for order-0 allocations part I 2016-06-24 17:23:52 -07:00
arm64 Merge branch 'akpm' (patches from Andrew) 2016-06-24 19:08:33 -07:00
avr32 tree wide: get rid of __GFP_REPEAT for order-0 allocations part I 2016-06-24 17:23:52 -07:00
blackfin printk/nmi: generic solution for safe printk in NMI 2016-05-20 17:58:30 -07:00
c6x asm-generic patch for 4.7 2016-05-24 15:24:37 -07:00
cris tree wide: get rid of __GFP_REPEAT for order-0 allocations part I 2016-06-24 17:23:52 -07:00
frv tree wide: get rid of __GFP_REPEAT for order-0 allocations part I 2016-06-24 17:23:52 -07:00
h8300 Merge branch 'hash' of git://ftp.sciencehorizons.net/linux 2016-05-28 16:15:25 -07:00
hexagon tree wide: get rid of __GFP_REPEAT for order-0 allocations part I 2016-06-24 17:23:52 -07:00
ia64 fix up initial thread stack pointer vs thread_info confusion 2016-06-24 17:07:33 -07:00
m32r Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild 2016-05-26 22:01:22 -07:00
m68k tree wide: get rid of __GFP_REPEAT for order-0 allocations part I 2016-06-24 17:23:52 -07:00
metag tree wide: get rid of __GFP_REPEAT for order-0 allocations part I 2016-06-24 17:23:52 -07:00
microblaze tree wide: get rid of __GFP_REPEAT for order-0 allocations part I 2016-06-24 17:23:52 -07:00
mips mips: get rid of superfluous __GFP_REPEAT 2016-06-24 17:23:52 -07:00
mn10300 Merge branch 'akpm' (patches from Andrew) 2016-06-24 19:08:33 -07:00
nios2 nios2: get rid of superfluous __GFP_REPEAT 2016-06-24 17:23:52 -07:00
openrisc tree wide: get rid of __GFP_REPEAT for order-0 allocations part I 2016-06-24 17:23:52 -07:00
parisc parisc: get rid of superfluous __GFP_REPEAT 2016-06-24 17:23:52 -07:00
powerpc powerpc fixes for 4.7 #4 2016-06-25 06:01:48 -07:00
s390 s390: fix test_fp_ctl inline assembly contraints 2016-06-28 09:24:28 +02:00
score score: get rid of superfluous __GFP_REPEAT 2016-06-24 17:23:52 -07:00
sh sh: get rid of superfluous __GFP_REPEAT 2016-06-24 17:23:52 -07:00
sparc sparc: get rid of superfluous __GFP_REPEAT 2016-06-24 17:23:52 -07:00
tile Merge branch 'akpm' (patches from Andrew) 2016-06-24 19:08:33 -07:00
um tree wide: get rid of __GFP_REPEAT for order-0 allocations part I 2016-06-24 17:23:52 -07:00
unicore32 unicore32: get rid of superfluous __GFP_REPEAT 2016-06-24 17:23:52 -07:00
x86 Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-06-25 06:49:32 -07:00
xtensa tree wide: get rid of __GFP_REPEAT for order-0 allocations part I 2016-06-24 17:23:52 -07:00
.gitignore
Kconfig Clarify naming of thread info/stack allocators 2016-06-24 15:09:37 -07:00