linux/arch
Kirill A. Shutemov 9f91164061 x86/traps: Fix load_unaligned_zeropad() handling for shared TDX memory
Commit c4e34dd99f ("x86: simplify load_unaligned_zeropad()
implementation") changes how exceptions around load_unaligned_zeropad()
handled.  The kernel now uses the fault_address in fixup_exception() to
verify the address calculations for the load_unaligned_zeropad().

It works fine for #PF, but breaks on #VE since no fault address is
passed down to fixup_exception().

Propagating ve_info.gla down to fixup_exception() resolves the issue.

See commit 1e7769653b ("x86/tdx: Handle load_unaligned_zeropad()
page-cross to a shared page") for more context.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Reported-by: Michael Kelley <mikelley@microsoft.com>
Fixes: c4e34dd99f ("x86: simplify load_unaligned_zeropad() implementation")
Acked-by: Dave Hansen <dave.hansen@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2023-07-25 15:29:01 -07:00
..
alpha Merge branch 'expand-stack' 2023-06-28 20:35:21 -07:00
arc asm-generic updates for 6.5 2023-07-06 10:06:04 -07:00
arm asm-generic updates for 6.5 2023-07-06 10:06:04 -07:00
arm64 ARM: 2023-07-23 10:44:38 -07:00
csky arch/csky patches for 6.5 2023-07-01 21:12:32 -07:00
hexagon Merge branch 'expand-stack' 2023-06-28 20:35:21 -07:00
ia64 io_uring-6.5-2023-07-21 2023-07-22 10:46:30 -07:00
loongarch asm-generic updates for 6.5 2023-07-06 10:06:04 -07:00
m68k m68k: Fix invalid .section syntax 2023-07-24 14:50:02 +02:00
microblaze slab updates for 6.5 2023-06-29 16:34:12 -07:00
mips - fixes for KVM 2023-07-09 10:02:49 -07:00
nios2 slab updates for 6.5 2023-06-29 16:34:12 -07:00
openrisc OpenRISC fix for 6.5 2023-07-12 16:28:53 -07:00
parisc io_uring-6.5-2023-07-21 2023-07-22 10:46:30 -07:00
powerpc Revert "powerpc/64s: Remove support for ELFv1 little endian userspace" 2023-07-19 21:28:35 +10:00
riscv RISC-V Fixes for 6.5-rc2 2023-07-14 11:14:07 -07:00
s390 ARM: 2023-07-23 10:44:38 -07:00
sh sh fixes for v6.5 2023-07-13 13:34:00 -07:00
sparc sparc: mark __arch_xchg() as __always_inline 2023-07-13 09:54:32 -07:00
um x86/alternative: Rename apply_ibt_endbr() 2023-07-10 09:52:23 +02:00
x86 x86/traps: Fix load_unaligned_zeropad() handling for shared TDX memory 2023-07-25 15:29:01 -07:00
xtensa xtensa: fix unaligned and load/store configuration interaction 2023-07-10 21:41:04 -07:00
.gitignore
Kconfig - Arnd Bergmann has fixed a bunch of -Wmissing-prototypes in 2023-06-28 10:59:38 -07:00