mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-09-29 13:53:33 +00:00
Code Issues Releases Wiki Activity

Two small fixes for x86:

Browse source 
* lockdep WARN due to missing lock nesting annotation
 * NULL pointer dereference when accessing debugfs
 -----BEGIN PGP SIGNATURE-----
 
 iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAmHYcyIUHHBib256aW5p
 QHJlZGhhdC5jb20ACgkQv/vSX3jHroNleQf/VyM140Z76sxY9IOp6RxhxP4UsMmd
 mRyFb1tf+nZcN2iw0E4XTu457xi3wkk7lERTGU4YM+FyB5/3ZUiZoUv/91IZMQ5p
 cDhdB7VgXX+kWt9sgEV8T6slNpE7EiqcFRQNwCumH46AlzE8VTR7S7U5MhRfbFpb
 fQSJd833fFPgZ7bJLoQoSYn/z7S5lZkzt636MHvgGAh6FD7195QgBQTof7baEJtV
 PtNZ60qLTzm1IxbfE78lJBhcyRHNHHHfwR5apdsMXGrkBgmREdzPd9qA/K7zHSB5
 nNDX/EmKh/5mbaF8YjhfARdt5hUZKIH1O8jlcRkWn7WCxNMyyYY+Kyvu1w==
 =4acD
 -----END PGP SIGNATURE-----

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
 "Two small fixes for x86:

   - lockdep WARN due to missing lock nesting annotation

   - NULL pointer dereference when accessing debugfs"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: x86: Check for rmaps allocation
  KVM: SEV: Mark nested locking of kvm->lock
This commit is contained in:
Linus Torvalds 2022-01-07 09:28:37 -08:00
commit 24556728c3
2 changed files with 4 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
arch/x86/kvm/debugfs.c
View file

@ -95,6 +95,9 @@ static int kvm_mmu_rmaps_stat_show(struct seq_file *m, void *v)
unsigned int *log[KVM_NR_PAGE_SIZES], *cur;
int i, j, k, l, ret;
if (!kvm_memslots_have_rmaps(kvm))
return 0;
ret = -ENOMEM;
memset(log, 0, sizeof(log));
for (i = 0; i < KVM_NR_PAGE_SIZES; i++) {

2
arch/x86/kvm/svm/sev.c
View file

@ -1565,7 +1565,7 @@ static int sev_lock_two_vms(struct kvm *dst_kvm, struct kvm *src_kvm)
r = -EINTR;
if (mutex_lock_killable(&dst_kvm->lock))
goto release_src;
if (mutex_lock_killable(&src_kvm->lock))
if (mutex_lock_killable_nested(&src_kvm->lock, SINGLE_DEPTH_NESTING))
goto unlock_dst;
return 0;