crypto: virtio/akcipher - Fix stack overflow on memcpy

Vulnerability Description

In the Linux kernel, the following vulnerability has been resolved: crypto: virtio/akcipher - Fix stack overflow on memcpy sizeof(struct virtio_crypto_akcipher_session_para) is less than sizeof(struct virtio_crypto_op_ctrl_req::u), copying more bytes from stack variable leads stack overflow. Clang reports this issue by commands: make -j CC=clang-14 mrproper >/dev/null 2>&1 make -j O=/tmp/crypto-build CC=clang-14 allmodconfig >/dev/null 2>&1 make -j O=/tmp/crypto-build W=1 CC=clang-14 drivers/crypto/virtio/ virtio_crypto_akcipher_algs.o

References

• https://git.kernel.org/stable/c/37077ed16c7793e21b005979d33f8a61565b7e86
• https://git.kernel.org/stable/c/62f361bfea60c6afc3df09c1ad4152e6507f6f47
• https://git.kernel.org/stable/c/b0365460e945e1117b47cf7329d86de752daff63
• https://git.kernel.org/stable/c/ef1e47d50324e232d2da484fe55a54274eeb9bc1
• https://git.kernel.org/stable/c/c0ec2a712daf133d9996a8a1b7ee2d4996080363