https://github.com/torvalds/linux
Revision 84da009f06e60cf59d5e861f8e2101d2d3885517 authored by Masami Hiramatsu on 03 December 2020, 04:51:01 UTC, committed by Borislav Petkov on 06 December 2020, 09:03:08 UTC
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: 25189d08e516 ("x86/sev-es: Add support for handling IOIO exceptions")
Reported-by: syzbot+9b64b619f10f19d19a7c@syzkaller.appspotmail.com
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/160697106089.3146288.2052422845039649176.stgit@devnote2
1 parent 12cb908
Tip revision: 84da009f06e60cf59d5e861f8e2101d2d3885517 authored by Masami Hiramatsu on 03 December 2020, 04:51:01 UTC
x86/sev-es: Use new for_each_insn_prefix() macro to loop over prefixes bytes
x86/sev-es: Use new for_each_insn_prefix() macro to loop over prefixes bytes
Tip revision: 84da009
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| arch | ||
| block | ||
| certs | ||
| crypto | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| mm | ||
| net | ||
| samples | ||
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| security | ||
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| .clang-format | -rw-r--r-- | 16.3 KB |
| .cocciconfig | -rw-r--r-- | 59 bytes |
| .get_maintainer.ignore | -rw-r--r-- | 71 bytes |
| .gitattributes | -rw-r--r-- | 62 bytes |
| .gitignore | -rw-r--r-- | 1.8 KB |
| .mailmap | -rw-r--r-- | 17.6 KB |
| COPYING | -rw-r--r-- | 496 bytes |
| CREDITS | -rw-r--r-- | 98.0 KB |
| Kbuild | -rw-r--r-- | 1.3 KB |
| Kconfig | -rw-r--r-- | 555 bytes |
| MAINTAINERS | -rw-r--r-- | 562.1 KB |
| Makefile | -rw-r--r-- | 62.7 KB |
| README | -rw-r--r-- | 727 bytes |
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