CVE-2021-28691
N/A
N/A
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | unspecified < 4.12 | unknown |
| Linux | Linux | 5.5.0 < unspecified | affected |
| Linux | Linux | next of 5.12.2 < unspecified | unaffected |
Weaknesses
- unknown
ADP Enrichment
CVE Program Container
Additional References
- https://xenbits.xenproject.org/xsa/advisory-374.txt
- https://security.gentoo.org/glsa/202107-30
- https://security.netapp.com/advisory/ntap-20210805-0002/
References
- https://xenbits.xenproject.org/xsa/advisory-374.txt
- https://security.gentoo.org/glsa/202107-30
- https://security.netapp.com/advisory/ntap-20210805-0002/
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