Change Details

Given a partial block at the end of a payload, aes_encrypt_icm() would perform a 16-byte load of the residual into a temporary variable. This is unsafe in principle since the full block may cross a page boundary. Fix the problem by copying up to the end of input. Reported by: syzbot+b7e44cde9e2e89f0f6c9@syzkaller.appspotmail.com Reported by: syzbot+4b5eaf123a99456b5160@syzkaller.appspotmail.com

Given a partial block at the end of a payload, aes_encrypt_icm() would perform a 16-byte load of the residual into a temporary variable. This is unsafe in principle since the full block may cross a page boundary. Fix the problem by copying up to the end of input into a stack variable and operating on that instead. Reported by: syzbot+b7e44cde9e2e89f0f6c9@syzkaller.appspotmail.com Reported by: syzbot+4b5eaf123a99456b5160@syzkaller.appspotmail.com

Given a partial block at the end of a payload, aes_encrypt_icm() would perform a 16-byte load of the residual into a temporary variable. This is unsafe in principle since the full block may cross a page boundary. Fix the problem by copying up to the end of input into a stack variable and operating on that instead. Reported by: syzbot+b7e44cde9e2e89f0f6c9@syzkaller.appspotmail.com Reported by: syzbot+4b5eaf123a99456b5160@syzkaller.appspotmail.com