Hi, Linus recently merged [1] the wrapper functions memdup_array_user() and vmemdup_array_user() in include/linux/string.h for Kernel v6.7 I am currently adding them to all places where (v)memdup_user() had been used to copy arrays. The wrapper is different to the wrapped functions only in that it might return -EOVERFLOW. So this new error code might get pushed up to userspace. I hope this is fine. I felt that it might be a good idea to land those three patches here with a single series, since they all touch something KVM-related. Kind regards, P. [1] https://lore.kernel.org/all/169886743808.2396.17544791408117731525.pr-tracker-bot@xxxxxxxxxx/ Philipp Stanner (3): arch/x86/kvm: copy user-array with overflow-check arch/s390/kvm: copy userspace-array safely virt/kvm: copy userspace-array safely arch/s390/kvm/guestdbg.c | 4 ++-- arch/x86/kvm/cpuid.c | 4 ++-- virt/kvm/kvm_main.c | 5 ++--- 3 files changed, 6 insertions(+), 7 deletions(-) -- 2.41.0
