Kirill A. Shutemov b6fb565a2d x86/tdx: Fix data leak in mmio_read() ... The mmio_read() function makes a TDVMCALL to retrieve MMIO data for an address from the VMM. Sean noticed that mmio_read() unintentionally exposes the value of an initialized variable (val) on the stack to the VMM. This variable is only needed as an output value. It did not need to be passed to the VMM in the first place. Do not send the original value of *val to the VMM. [ dhansen: clarify what 'val' is used for. ] Fixes: 31d58c4e55 ("x86/tdx: Handle in-kernel MMIO") Reported-by: Sean Christopherson <seanjc@google.com> Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Cc:stable@vger.kernel.org Link: https://lore.kernel.org/all/20240826125304.1566719-1-kirill.shutemov%40linux.intel.com		2024-08-26 12:45:19 -07:00
..
Makefile	x86/tdx: Add unaccepted memory support	2023-06-06 18:25:57 +02:00
tdcall.S	x86/tdx: Reimplement __tdx_hypercall() using TDX_MODULE_CALL asm	2023-09-12 16:30:14 -07:00
tdx-shared.c	x86/virt/tdx: Define TDX supported page sizes as macros	2023-12-08 09:12:00 -08:00
tdx.c	x86/tdx: Fix data leak in mmio_read()	2024-08-26 12:45:19 -07:00