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Ross Burton 68f1b7f429 openssl: fix crash on aarch64 if BTI is enabled but no Crypto instructions
On aarch64, if the processor doesn't have the Crypto instructions then
OpenSSL will fall back onto the "bit-sliced" assembler routines. When
branch protection (BTI) was enabled in OpenSSL these routines were
missed, so if BTI is available libssl will immediately abort when it
enters this assembler.

Backport a patch submitted upstream to add the required call target
annotations so that BTI doesn't believe the code is being exploited.

(From OE-Core rev: ec555688dbdc87cc695db653201c8d9e20079d22)

Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>
2024-03-28 07:08:30 -10:00
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