On Wed, Dec 04, 2024 at 12:20:36PM -0800, Jing Zhang wrote: > commit 7fe28d7e68f92cc3d0668b8f2fbdf5c303ac3022 upstream. > > In all the vgic_its_save_*() functinos, they do not check whether > the data length is 8 bytes before calling vgic_write_guest_lock. > This patch adds the check. To prevent the kernel from being blown up > when the fault occurs, KVM_BUG_ON() is used. And the other BUG_ON()s > are replaced together. > > Cc: stable@xxxxxxxxxxxxxxx > Signed-off-by: Kunkun Jiang <jiangkunkun@xxxxxxxxxx> > [Jing: Update with the new entry read/write helpers] > Signed-off-by: Jing Zhang <jingzhangos@xxxxxxxxxx> > Link: https://lore.kernel.org/r/20241107214137.428439-4-jingzhangos@xxxxxxxxxx > Signed-off-by: Oliver Upton <oliver.upton@xxxxxxxxx> > --- > virt/kvm/arm/vgic/vgic-its.c | 20 ++++++++------------ > virt/kvm/arm/vgic/vgic.h | 24 ++++++++++++++++++++++++ > 2 files changed, 32 insertions(+), 12 deletions(-) > Sorry, but 4.19.y is now end-of-life.
