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CVE-2022-50227

In the Linux kernel, the following vulnerability has been resolved:

KVM: x86/xen: Initialize Xen timer only once

Add a check for existing xen timers before initializing a new one.

Currently kvm_xen_init_timer() is called on every
KVM_XEN_VCPU_ATTR_TYPE_TIMER, which is causing the following ODEBUG
crash when vcpu->arch.xen.timer is already set.

ODEBUG: init active (active state 0)
object type: hrtimer hint: xen_timer_callbac0
RIP: 0010:debug_print_object+0x16e/0x250 lib/debugobjects.c:502
Call Trace:
__debug_object_init
debug_hrtimer_init
debug_init
hrtimer_init
kvm_xen_init_timer
kvm_xen_vcpu_set_attr
kvm_arch_vcpu_ioctl
kvm_vcpu_ioctl
vfs_ioctl

Verknüpft mit AI von unstrukturierten Daten zu bestehenden CPE der NVD
This information is available to logged-in users.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
VendorLinux
≫
Product Linux
Default Statusunaffected
Version < 9a9b5771e930f408c3419799000f76a9abaf2278
Version 536395260582be7443b0b35b0bbb89ffe3947f62
Status affected
Version < af735db31285fa699384c649be72a9f32ecbb665
Version 536395260582be7443b0b35b0bbb89ffe3947f62
Status affected
VendorLinux
≫
Product Linux
Default Statusaffected
Version 5.19
Status affected
Version < 5.19
Version 0
Status unaffected
Version <= 5.19.*
Version 5.19.2
Status unaffected
Version <= *
Version 6.0
Status unaffected
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.03% 0.059
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string