e6ac956177
commit fc02735b14fff8c6678b521d324ade27b1a3d4cf upstream. On eIBRS systems, the returns in the vmexit return path from __vmx_vcpu_run() to vmx_vcpu_run() are exposed to RSB poisoning attacks. Fix that by moving the post-vmexit spec_ctrl handling to immediately after the vmexit. Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Borislav Petkov <bp@suse.de> Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com> [ bp: Adjust for the fact that vmexit is in inline assembly ] Signed-off-by: Suraj Jitindar Singh <surajjs@amazon.com> Signed-off-by: Suleiman Souhlal <suleiman@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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