AuxXxilium/linux_dsm_epyc7002
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linux_dsm_epyc7002/arch/x86/lib
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Masami Hiramatsu 12cb908a11 x86/insn-eval: Use new for_each_insn_prefix() macro to loop over prefixes bytes 
Since insn.prefixes.nbytes can be bigger than the size of
insn.prefixes.bytes[] when a prefix is repeated, the proper check must
be

  insn.prefixes.bytes[i] != 0 and i < 4

instead of using insn.prefixes.nbytes. Use the new
for_each_insn_prefix() macro which does it correctly.

Debugged by Kees Cook <keescook@chromium.org>.

 [ bp: Massage commit message. ]

Fixes: 32d0b95300 ("x86/insn-eval: Add utility functions to get segment selector")
Reported-by: syzbot+9b64b619f10f19d19a7c@syzkaller.appspotmail.com
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/160697104969.3146288.16329307586428270032.stgit@devnote2
2020-12-06 10:03:08 +01:00
..
.gitignore .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
atomic64_32.c x86: Adjust asm constraints in atomic64 wrappers 2012-01-20 17:29:31 -08:00
atomic64_386_32.S x86/asm/32: Change all ENTRY+ENDPROC to SYM_FUNC_* 2019-10-18 12:03:43 +02:00
atomic64_cx8_32.S x86/asm/32: Change all ENTRY+ENDPROC to SYM_FUNC_* 2019-10-18 12:03:43 +02:00
cache-smp.c smp: Remove smp_call_function() and on_each_cpu() return values 2019-06-23 14:26:26 +02:00
checksum_32.S i386: propagate the calling conventions change down to csum_partial_copy_generic() 2020-08-20 15:45:18 -04:00
clear_page_64.S x86/asm: Change all ENTRY+ENDPROC to SYM_FUNC_* 2019-10-18 11:58:33 +02:00
cmdline.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
cmpxchg8b_emu.S x86/asm: Change all ENTRY+ENDPROC to SYM_FUNC_* 2019-10-18 11:58:33 +02:00
cmpxchg16b_emu.S x86/asm: Change all ENTRY+ENDPROC to SYM_FUNC_* 2019-10-18 11:58:33 +02:00
copy_mc_64.S x86/copy_mc: Introduce copy_mc_enhanced_fast_string() 2020-10-06 11:37:36 +02:00
copy_mc.c x86/copy_mc: Introduce copy_mc_enhanced_fast_string() 2020-10-06 11:37:36 +02:00
copy_page_64.S x86/asm: Change all ENTRY+ENDPROC to SYM_FUNC_* 2019-10-18 11:58:33 +02:00
copy_user_64.S x86/mce: Avoid tail copy when machine check terminated a copy from user 2020-10-07 11:26:56 +02:00
cpu.c x86/lib/cpu: Address missing prototypes warning 2019-08-08 08:25:53 +02:00
csum-copy_64.S amd64: switch csum_partial_copy_generic() to new calling conventions 2020-08-20 15:45:22 -04:00
csum-partial_64.c x86/lib: Fix indentation issue, remove extra tab 2019-03-21 12:24:38 +01:00
csum-wrappers_64.c amd64: switch csum_partial_copy_generic() to new calling conventions 2020-08-20 15:45:22 -04:00
delay.c x86/delay: Introduce TPAUSE delay 2020-05-07 16:06:20 +02:00
error-inject.c x86/asm: Mark all top level asm statements as .text 2019-04-19 17:46:55 +02:00
getuser.S Merge branch 'work.set_fs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-10-22 09:59:21 -07:00
hweight.S x86/asm: Change all ENTRY+ENDPROC to SYM_FUNC_* 2019-10-18 11:58:33 +02:00
inat.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
insn-eval.c x86/insn-eval: Use new for_each_insn_prefix() macro to loop over prefixes bytes 2020-12-06 10:03:08 +01:00
insn.c x86: xen: insn: Decode Xen and KVM emulate-prefix signature 2019-10-17 21:31:57 +02:00
iomap_copy_64.S x86/asm: Change all ENTRY+ENDPROC to SYM_FUNC_* 2019-10-18 11:58:33 +02:00
iomem.c x86: explicitly align IO accesses in memcpy_{to,from}io 2019-02-01 09:07:48 -08:00
kaslr.c x86/kaslr: Fix incorrect i8254 outb() parameters 2019-01-11 21:35:47 +01:00
Makefile * Extend the recovery from MCE in kernel space also to processes which 2020-10-12 10:14:38 -07:00
memcpy_32.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
memcpy_64.S x86/lib: Change .weak to SYM_FUNC_START_WEAK for arch/x86/lib/mem*_64.S 2020-11-04 12:30:20 +01:00
memmove_64.S x86/lib: Change .weak to SYM_FUNC_START_WEAK for arch/x86/lib/mem*_64.S 2020-11-04 12:30:20 +01:00
memset_64.S x86/lib: Change .weak to SYM_FUNC_START_WEAK for arch/x86/lib/mem*_64.S 2020-11-04 12:30:20 +01:00
misc.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mmx_32.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
msr-reg-export.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
msr-reg.S x86/asm: Change all ENTRY+ENDPROC to SYM_FUNC_* 2019-10-18 11:58:33 +02:00
msr-smp.c x86/msr: Make rdmsrl_safe_on_cpu() scheduling safe as well 2018-03-28 10:34:13 +02:00
msr.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
putuser.S Merge branch 'work.set_fs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-10-22 09:59:21 -07:00
retpoline.S x86/retpoline: Fix retpoline unwind 2020-04-30 20:14:34 +02:00
string_32.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
strstr_32.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
usercopy_32.c docs/core-api/mm: fix user memory accessors formatting 2019-03-05 21:07:20 -08:00
usercopy_64.c * Extend the recovery from MCE in kernel space also to processes which 2020-10-12 10:14:38 -07:00
usercopy.c x86/nmi: Fix NMI uaccess race against CR3 switching 2018-08-31 17:08:22 +02:00
x86-opcode-map.txt x86/insn: Add Control-flow Enforcement (CET) instructions to the opcode map 2020-03-26 12:21:40 +01:00