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Andy Lutomirski 26dc5324ff x86/asm/traps: Disable tracing and kprobes in fixup_bad_iret and sync_regs 
commit 7ddc6a2199f1da405a2fb68c40db8899b1a8cd87 upstream.

These functions can be executed on the int3 stack, so kprobes
are dangerous. Tracing is probably a bad idea, too.

Fixes: b645af2d5905 ("x86_64, traps: Rework bad_iret")
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/50e33d26adca60816f3ba968875801652507d0c4.1416870125.git.luto@amacapital.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
[bwh: Backported to 3.10:
 - Use __kprobes instead of NOKPROBE_SYMBOL()
 - Adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-01-29 17:40:56 -08:00
..
alpha arch: mm: pass userspace fault flag to generic fault handler 2014-11-21 09:22:56 -08:00
arc ARC: [nsimosci] move peripherals to match model to FPGA 2015-01-27 07:52:31 -08:00
arm ARM: dts: imx25: Fix PWM "per" clocks 2015-01-29 17:40:56 -08:00
arm64 arch: mm: pass userspace fault flag to generic fault handler 2014-11-21 09:22:56 -08:00
avr32 arch: mm: pass userspace fault flag to generic fault handler 2014-11-21 09:22:56 -08:00
blackfin
c6x
cris arch: mm: pass userspace fault flag to generic fault handler 2014-11-21 09:22:56 -08:00
frv arch: mm: pass userspace fault flag to generic fault handler 2014-11-21 09:22:56 -08:00
h8300
hexagon arch: mm: pass userspace fault flag to generic fault handler 2014-11-21 09:22:56 -08:00
ia64 arch: mm: pass userspace fault flag to generic fault handler 2014-11-21 09:22:56 -08:00
m32r arch: mm: pass userspace fault flag to generic fault handler 2014-11-21 09:22:56 -08:00
m68k arch: mm: pass userspace fault flag to generic fault handler 2014-11-21 09:22:56 -08:00
metag arch: mm: pass userspace fault flag to generic fault handler 2014-11-21 09:22:56 -08:00
microblaze arch: mm: pass userspace fault flag to generic fault handler 2014-11-21 09:22:56 -08:00
mips MIPS: Loongson: Make platform serial setup always built-in. 2014-12-06 15:05:46 -08:00
mn10300 arch: mm: pass userspace fault flag to generic fault handler 2014-11-21 09:22:56 -08:00
openrisc arch: mm: pass userspace fault flag to generic fault handler 2014-11-21 09:22:56 -08:00
parisc arch: mm: pass userspace fault flag to generic fault handler 2014-11-21 09:22:56 -08:00
powerpc powerpc: 32 bit getcpu VDSO function uses 64 bit instructions 2014-12-16 09:09:43 -08:00
s390 groups: Consolidate the setgroups permission checks 2015-01-08 09:58:16 -08:00
score arch: mm: pass userspace fault flag to generic fault handler 2014-11-21 09:22:56 -08:00
sh arch: mm: pass userspace fault flag to generic fault handler 2014-11-21 09:22:56 -08:00
sparc sparc64: Fix constraints on swab helpers. 2014-12-06 15:05:46 -08:00
tile arch: mm: pass userspace fault flag to generic fault handler 2014-11-21 09:22:56 -08:00
um um: Skip futex_atomic_cmpxchg_inatomic() test 2015-01-27 07:52:33 -08:00
unicore32 arch: mm: pass userspace fault flag to generic fault handler 2014-11-21 09:22:56 -08:00
x86 x86/asm/traps: Disable tracing and kprobes in fixup_bad_iret and sync_regs 2015-01-29 17:40:56 -08:00
xtensa arch: mm: pass userspace fault flag to generic fault handler 2014-11-21 09:22:56 -08:00
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