Sean Christopherson 347125705f KVM: s390: Return last valid slot if approx index is out-of-bounds ... commit 97daa028f3 upstream. Return the index of the last valid slot from gfn_to_memslot_approx() if its binary search loop yielded an out-of-bounds index. The index can be out-of-bounds if the specified gfn is less than the base of the lowest memslot (which is also the last valid memslot). Note, the sole caller, kvm_s390_get_cmma(), ensures used_slots is non-zero. Fixes: afdad61615 ("KVM: s390: Fix storage attributes migration with memory slots") Cc: stable@vger.kernel.org # 4.19.x: 0774a964ef56: KVM: Fix out of range accesses to memslots Cc: stable@vger.kernel.org # 4.19.x Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> Message-Id: <20200408064059.8957-3-sean.j.christopherson@intel.com> Reviewed-by: Cornelia Huck <cohuck@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2020-04-29 16:33:16 +02:00
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appldata	…
boot	s390: make 'install' not depend on vmlinux	2020-03-12 13:00:13 +01:00
configs	s390: update defconfigs	2019-10-04 16:37:33 +02:00
crypto	s390/crypto: Fix unsigned variable compared with zero	2019-12-31 16:45:41 +01:00
hypfs	Merge branch 'work.mount3' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2019-09-24 12:33:34 -07:00
include	s390: prevent leaking kernel address in BEAR	2020-04-13 10:48:06 +02:00
kernel	s390/cpum_sf: Fix wrong page count in error message	2020-04-23 10:36:35 +02:00
kvm	KVM: s390: Return last valid slot if approx index is out-of-bounds	2020-04-29 16:33:16 +02:00
lib	…
mm	KVM: s390: vsie: Fix possible race when shadowing region 3 tables	2020-04-23 10:36:37 +02:00
net	s390/bpf: Use kvcalloc for addrs array	2019-12-31 16:45:06 +01:00
numa	…
oprofile	…
pci	s390/pci: Fix unexpected write combine on resource	2020-03-12 13:00:22 +01:00
purgatory	s390/purgatory: do not build purgatory with kcov, kasan and friends	2020-01-12 12:21:40 +01:00
scripts	…
tools	…
Kbuild	…
Kconfig	Merge branch 'next-lockdown' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security	2019-09-28 08:14:15 -07:00
Kconfig.debug	…
Makefile	s390: make 'install' not depend on vmlinux	2020-03-12 13:00:13 +01:00