commit | 7795afa0d7a907df392483efe9a38b4f875169f7 | [log] [tgz] |
---|---|---|
author | Paolo Bonzini <pbonzini@redhat.com> | Tue Dec 22 05:20:43 2020 -0500 |
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | Tue Jan 12 20:16:25 2021 +0100 |
tree | 62d00137114017104e441aa1ad537a62988a8fec | |
parent | a9d49da7edf85b947cf33e2b4217b092aee6a43b [diff] |
KVM: x86: fix shift out of bounds reported by UBSAN commit 2f80d502d627f30257ba7e3655e71c373b7d1a5a upstream. Since we know that e >= s, we can reassociate the left shift, changing the shifted number from 1 to 2 in exchange for decreasing the right hand side by 1. Reported-by: syzbot+e87846c48bf72bc85311@syzkaller.appspotmail.com Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>