KVM: nSVM: Replace kzalloc() + copy_from_user() with memdup_user()

Browse source

Replace kzalloc() followed by copy_from_user() with memdup_user() to
improve and simplify svm_set_nested_state().

Return early if an error occurs instead of trying to allocate memory for
'save' when memory allocation for 'ctl' already failed.

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Link: https://lore.kernel.org/r/20250903002951.118912-1-thorsten.blum@linux.dev
Signed-off-by: Sean Christopherson <seanjc@google.com>

...

This commit is contained in:

Thorsten Blum 2025-09-03 02:29:50 +02:00 • committed by Sean Christopherson

parent 2f5f8fb9de

commit fc55b4cda0

1 changed files with 9 additions and 11 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

18

arch/x86/kvm/svm/nested.c

View file