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authorLinus Torvalds <torvalds@linux-foundation.org>2017-11-17 11:54:55 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-11-17 11:54:55 -0800
commit93f30c73ecd0281cf3685ef0e4e384980a176176 (patch)
treebd272334a0dbd258c08b5b2237e8bf5e17ce7255 /virt/kvm
parent06ede5f6086757f746b7be860ae76137f4e95032 (diff)
parent96271654f55c74ff7325fbdfc535466c9deb0ce6 (diff)
Merge branch 'misc.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull compat and uaccess updates from Al Viro: - {get,put}_compat_sigset() series - assorted compat ioctl stuff - more set_fs() elimination - a few more timespec64 conversions - several removals of pointless access_ok() in places where it was followed only by non-__ variants of primitives * 'misc.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (24 commits) coredump: call do_unlinkat directly instead of sys_unlink fs: expose do_unlinkat for built-in callers ext4: take handling of EXT4_IOC_GROUP_ADD into a helper, get rid of set_fs() ipmi: get rid of pointless access_ok() pi433: sanitize ioctl cxlflash: get rid of pointless access_ok() mtdchar: get rid of pointless access_ok() r128: switch compat ioctls to drm_ioctl_kernel() selection: get rid of field-by-field copyin VT_RESIZEX: get rid of field-by-field copyin i2c compat ioctls: move to ->compat_ioctl() sched_rr_get_interval(): move compat to native, get rid of set_fs() mips: switch to {get,put}_compat_sigset() sparc: switch to {get,put}_compat_sigset() s390: switch to {get,put}_compat_sigset() ppc: switch to {get,put}_compat_sigset() parisc: switch to {get,put}_compat_sigset() get_compat_sigset() get rid of {get,put}_compat_itimerspec() io_getevents: Use timespec64 to represent timeouts ...
Diffstat (limited to 'virt/kvm')
-rw-r--r--virt/kvm/kvm_main.c7
1 files changed, 2 insertions, 5 deletions
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 2dd1a9ca4599..f169ecc4f2e8 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -2724,7 +2724,6 @@ static long kvm_vcpu_compat_ioctl(struct file *filp,
case KVM_SET_SIGNAL_MASK: {
struct kvm_signal_mask __user *sigmask_arg = argp;
struct kvm_signal_mask kvm_sigmask;
- compat_sigset_t csigset;
sigset_t sigset;
if (argp) {
@@ -2733,13 +2732,11 @@ static long kvm_vcpu_compat_ioctl(struct file *filp,
sizeof(kvm_sigmask)))
goto out;
r = -EINVAL;
- if (kvm_sigmask.len != sizeof(csigset))
+ if (kvm_sigmask.len != sizeof(compat_sigset_t))
goto out;
r = -EFAULT;
- if (copy_from_user(&csigset, sigmask_arg->sigset,
- sizeof(csigset)))
+ if (get_compat_sigset(&sigset, (void *)sigmask_arg->sigset))
goto out;
- sigset_from_compat(&sigset, &csigset);
r = kvm_vcpu_ioctl_set_sigmask(vcpu, &sigset);
} else
r = kvm_vcpu_ioctl_set_sigmask(vcpu, NULL);