commit 7b923c78b50d2ec52690c4353e5aad8302e80599
Author: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date:   Thu Aug 6 19:27:09 2026 +0200

    Linux 6.18.43
    
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

commit bfe7f9993467ba431b2731437949ac1e2634e771
Author: Borislav Petkov (AMD) <bp@alien8.de>
Date:   Tue Jun 2 21:26:44 2026 -0700

    x86/bugs: Make Safe-RET robust against interrupt injection
    
    commit 7e7f81cf6f5ca3311e526308f55d7c54d3ba71f9 upstream.
    
    An attacker injecting interrupts while the Safe-RET mitigation executes
    on machines affected by SRSO can neutralize the safe return sequence,
    potentially leading to data leakage through speculative execution.
    
    Fixup register state as if the Safe-RET sequence executed successfully
    by "emulating" it, in a manner of speaking, and avoid executing a RET
    instruction after returning from the interrupt.
    
    Co-developed-by: David Kaplan <David.Kaplan@amd.com>
    Signed-off-by: David Kaplan <David.Kaplan@amd.com>
    Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>