Description (CNA)
Guest triggered use-after-free in Linux xen-netback A malicious or buggy network PV frontend can force Linux netback to disable the interface and terminate the receive kernel thread associated with queue 0 in response to the frontend sending a malformed packet. Such kernel thread termination will lead to a use-after-free in Linux netback when the backend is destroyed, as the kernel thread associated with queue 0 will have already exited and thus the call to kthread_stop will be performed against a stale pointer.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | unknown unspecified before 4.12; affected 5.5.0 before unspecified; unaffected next of 5.12.2 before unspecified |
CWE
No CWE identifiers supplied.
References
- https://xenbits.xenproject.org/xsa/advisory-374.txt
- https://security.gentoo.org/glsa/202107-30
- https://security.netapp.com/advisory/ntap-20210805-0002/
ADP enrichment
No English description supplied.