leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity
bd2a0f6754
linux/arch/x86/lib
History
Linus Torvalds 3b91270a0a x86-64: make csum_partial_copy_from_user() error handling consistent 
Al Viro pointed out that the x86-64 csum_partial_copy_from_user() is
somewhat confused about what it should do on errors, notably it mostly
clears the uncopied end result buffer, but misses that for the initial
alignment case.

All users should check for errors, so it's dubious whether the clearing
is even necessary, and Al also points out that we should probably clean
up the calling conventions, but regardless of any future changes to this
function, the fact that it is inconsistent is just annoying.

So make the __get_user() failure path use the same error exit as all the
other errors do.

Reported-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: David Miller <davem@davemloft.net>
Cc: Andi Kleen <andi@firstfloor.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-11-16 11:00:42 -08:00
..
.gitignore
atomic64_32.c x86: Adjust asm constraints in atomic64 wrappers 2012-01-20 17:29:31 -08:00
atomic64_386_32.S x86: atomic64 assembly improvements 2012-01-20 17:29:49 -08:00
atomic64_cx8_32.S x86: atomic64 assembly improvements 2012-01-20 17:29:49 -08:00
cache-smp.c x86, lib: Add wbinvd smp helpers 2010-01-22 16:05:42 -08:00
checksum_32.S x86/lib: Fix spelling, put space between a numeral and its units 2013-04-15 11:40:32 +02:00
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
cmdline.c x86, boot: Carve out early cmdline parsing function 2014-05-20 20:21:24 -07:00
cmpxchg8b_emu.S x86: Improve cmpxchg8b_emu.S 2014-10-08 10:05:49 +02:00
cmpxchg16b_emu.S x86: Improve cmpxchg16b_emu.S 2014-10-08 10:05:49 +02:00
copy_page_64.S x86/asm: Clean up copy_page_*() comments and code 2012-10-24 12:42:47 +02:00
copy_user_64.S x86-64, copy_user: Use leal to produce 32-bit results 2013-11-20 13:57:07 -08:00
copy_user_nocache_64.S x86, smap: Add STAC and CLAC instructions to control user space access 2012-09-21 12:45:27 -07:00
csum-copy_64.S x86, extable: Remove open-coded exception table entries in arch/x86/lib/csum-copy_64.S 2012-04-20 13:51:39 -07:00
csum-partial_64.c x86: Fix common misspellings 2011-03-18 10:39:30 +01:00
csum-wrappers_64.c x86-64: make csum_partial_copy_from_user() error handling consistent 2014-11-16 11:00:42 -08:00
delay.c x86: Delete non-required instances of include <linux/init.h> 2014-01-06 21:25:18 -08:00
getuser.S x86: Be consistent with data size in getuser.S 2013-02-11 23:14:48 -08:00
hash.c x86, hash: Simplify switch, add __init annotation 2014-03-19 16:51:04 -07:00
inat.c x86: Fix to decode grouped AVX with VEX pp bits 2012-02-11 15:11:35 +01:00
insn.c UAPI: x86: Fix insn_sanity build failure after UAPI split 2012-10-02 18:01:56 +01:00
iomap_copy_64.S
Makefile Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-10-13 18:14:50 +02:00
memcpy_32.c asmlinkage, x86: Fix 32bit memcpy for LTO 2014-02-13 18:14:46 -08:00
memcpy_64.S x86/lib: Fix spelling, put space between a numeral and its units 2013-04-15 11:40:32 +02:00
memmove_64.S x86/lib: Fix spelling, put space between a numeral and its units 2013-04-15 11:40:32 +02:00
memset_64.S x86-64: Fix memset() to support sizes of 4Gb and above 2012-01-26 11:50:04 +01:00
misc.c x86/boot: Further compress CPUs bootup message 2013-10-01 10:52:30 +02:00
mmx_32.c
msr-reg-export.c x86, pvops: Remove hooks for {rd,wr}msr_safe_regs 2012-06-07 11:41:08 -07:00
msr-reg.S x86, pvops: Remove hooks for {rd,wr}msr_safe_regs 2012-06-07 11:41:08 -07:00
msr-smp.c x86 / msr: add 64bit _on_cpu access functions 2013-10-17 00:36:06 +02:00
msr.c x86: Fix typo preventing msr_set/clear_bit from having an effect 2014-05-09 08:42:32 -07:00
putuser.S x86, smap: Add STAC and CLAC instructions to control user space access 2012-09-21 12:45:27 -07:00
rwsem.S x86: Unify rwsem assembly implementation 2011-07-21 09:03:32 +02:00
string_32.c x86/i386: Use less assembly in strlen(), speed things up a bit 2011-12-12 18:33:42 +01:00
strstr_32.c
thunk_32.S x86: Unwind-annotate thunk_32.S 2014-10-08 12:31:45 +02:00
thunk_64.S x86: Speed up ___preempt_schedule*() by using THUNK helpers 2014-09-24 15:15:38 +02:00
usercopy_32.c x86: Unify copy_to_user() and add size checking to it 2013-10-26 12:27:37 +02:00
usercopy_64.c x86, asmlinkage: Make several variables used from assembler/linker script visible 2013-08-06 14:20:13 -07:00
usercopy.c perf: Fix arch_perf_out_copy_user default 2013-11-06 12:34:25 +01:00
x86-opcode-map.txt x86, mpx: Add MPX related opcodes to the x86 opcode map 2014-01-17 11:04:09 -08:00