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| author | Eric Biggers <ebiggers@google.com> | 2024-10-16 17:00:42 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-12-05 14:02:43 +0100 |
| commit | d6933f2ea22b189752cbd74ade4d5c92c6cf63e3 (patch) | |
| tree | 8850bfac604a54edde33ca4545a5b8c3f55de4e7 /virt | |
| parent | bc9b40fae656148cf264c93657b74e11263b02f9 (diff) | |
| download | linux-d6933f2ea22b189752cbd74ade4d5c92c6cf63e3.tar.gz linux-d6933f2ea22b189752cbd74ade4d5c92c6cf63e3.tar.bz2 linux-d6933f2ea22b189752cbd74ade4d5c92c6cf63e3.zip | |
crypto: x86/aegis128 - access 32-bit arguments as 32-bit
commit 3b2f2d22fb424e9bebda4dbf6676cbfc7f9f62cd upstream.
Fix the AEGIS assembly code to access 'unsigned int' arguments as 32-bit
values instead of 64-bit, since the upper bits of the corresponding
64-bit registers are not guaranteed to be zero.
Note: there haven't been any reports of this bug actually causing
incorrect behavior. Neither gcc nor clang guarantee zero-extension to
64 bits, but zero-extension is likely to happen in practice because most
instructions that operate on 32-bit registers zero-extend to 64 bits.
Fixes: 1d373d4e8e15 ("crypto: x86 - Add optimized AEGIS implementations")
Cc: stable@vger.kernel.org
Reviewed-by: Ondrej Mosnacek <omosnace@redhat.com>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'virt')
0 files changed, 0 insertions, 0 deletions