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| author | Quentin Casasnovas <quentin.casasnovas@oracle.com> | 2015-02-03 13:00:24 +0100 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2015-02-19 12:42:23 +0100 |
| commit | 35a9ff4eec7a1725ac4364972fc6c156e4feedd0 (patch) | |
| tree | d77433b391eb3f7e9f85d46b720af0cd17be85f7 /arch/x86/kernel/test_nx.c | |
| parent | f84598bd7c851f8b0bf8cd0d7c3be0d73c432ff4 (diff) | |
| download | blackbird-op-linux-35a9ff4eec7a1725ac4364972fc6c156e4feedd0.tar.gz blackbird-op-linux-35a9ff4eec7a1725ac4364972fc6c156e4feedd0.zip | |
x86/microcode/intel: Handle truncated microcode images more robustly
We do not check the input data bounds containing the microcode before
copying a struct microcode_intel_header from it. A specially crafted
microcode could cause the kernel to read invalid memory and lead to a
denial-of-service.
Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Link: http://lkml.kernel.org/r/1422964824-22056-3-git-send-email-quentin.casasnovas@oracle.com
[ Made error message differ from the next one and flipped comparison. ]
Signed-off-by: Borislav Petkov <bp@suse.de>
Diffstat (limited to 'arch/x86/kernel/test_nx.c')
0 files changed, 0 insertions, 0 deletions
