Masami Hiramatsu 53a019a951 x86: Fix insn decoder for longer instruction ...

Fix x86 insn decoder for hardening against invalid length
instructions. This adds length checkings for each byte-read
site and if it exceeds MAX_INSN_SIZE, returns immediately.
This can happen when decoding user-space binary.

Caller can check whether it happened by checking insn.*.got
member is set or not.

Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: acme@redhat.com
Cc: ming.m.lin@intel.com
Cc: robert.richter@amd.com
Cc: ravitillo@lbl.gov
Cc: yrl.pp-manager.tt@hitachi.com
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20111007133155.10933.58577.stgit@localhost.localdomain
Signed-off-by: Ingo Molnar <mingo@elte.hu>

2011-10-10 09:05:51 +02:00

..

.gitignore

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atomic64_32.c

atomic: use <linux/atomic.h>

2011-07-26 16:49:47 -07:00

atomic64_386_32.S

x86: Use {push,pop}_cfi in more places

2011-02-28 18:06:22 +01:00

atomic64_cx8_32.S

x86: Use {push,pop}_cfi in more places

2011-02-28 18:06:22 +01:00

cache-smp.c

…

checksum_32.S

x86: Use {push,pop}_cfi in more places

2011-02-28 18:06:22 +01:00

clear_page_64.S

x86, mem: clear_page_64.S: Support clear_page() with enhanced REP MOVSB/STOSB

2011-05-17 15:40:27 -07:00

cmpxchg8b_emu.S

…

cmpxchg16b_emu.S

percpu: Omit segment prefix in the UP case for cmpxchg_double

2011-03-27 19:25:36 -07:00

cmpxchg.c

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copy_page_64.S

x86: Make alternative instruction pointers relative

2011-07-13 11:22:56 -07:00

copy_user_64.S

x86, 64-bit: Fix copy_[to/from]_user() checks for the userspace address limit

2011-05-18 12:49:00 +02:00

copy_user_nocache_64.S

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csum-copy_64.S

x86: Clean up csum-copy_64.S a bit

2011-03-18 10:44:26 +01:00

csum-partial_64.c

x86: Fix common misspellings

2011-03-18 10:39:30 +01:00

csum-wrappers_64.c

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delay.c

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getuser.S

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inat.c

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insn.c

x86: Fix insn decoder for longer instruction

2011-10-10 09:05:51 +02:00

iomap_copy_64.S

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Makefile

Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2011-07-22 17:02:24 -07:00

memcpy_32.c

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memcpy_64.S

Merge branches 'x86-apic-for-linus', 'x86-asm-for-linus' and 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2011-05-19 17:49:35 -07:00

memmove_64.S

x86: Make alternative instruction pointers relative

2011-07-13 11:22:56 -07:00

memset_64.S

x86, mem: memset_64.S: Optimize memset by enhanced REP MOVSB/STOSB

2011-05-17 15:40:31 -07:00

mmx_32.c

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msr-reg-export.c

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msr-reg.S

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msr-smp.c

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msr.c

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putuser.S

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rwlock.S

x86: Fix write lock scalability 64-bit issue

2011-07-21 09:03:36 +02:00

rwsem.S

x86: Unify rwsem assembly implementation

2011-07-21 09:03:32 +02:00

string_32.c

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strstr_32.c

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thunk_32.S

x86: Remove unused bits from lib/thunk_*.S

2011-02-28 18:06:22 +01:00

thunk_64.S

x86: Fix write lock scalability 64-bit issue

2011-07-21 09:03:36 +02:00

usercopy_32.c

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usercopy_64.c

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usercopy.c

x86, perf: Make copy_from_user_nmi() a library function

2011-07-21 20:41:57 +02:00

x86-opcode-map.txt

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