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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.
| Reporter | Title | Published | Views | Family All 133 |
|---|---|---|---|---|
 | CVE-2021-28691 | 29 Jun 202112:15 | – | attackerkb |
 | Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.10-2022-002 (ALASKERNEL-5.10-2022-002) | 2 May 202200:00 | – | nessus |
| GLSA-202107-30 : Xen: Multiple vulnerabilities | 24 Jan 202200:00 | – | nessus |
| Photon OS 4.0: Linux PHSA-2021-4.0-0058 | 22 Jul 202400:00 | – | nessus |
| RHEL 6 : kernel (Unpatched Vulnerability) | 11 May 202400:00 | – | nessus |
| RHEL 7 : kernel (Unpatched Vulnerability) | 11 May 202400:00 | – | nessus |
| Ubuntu 20.04 LTS : Linux kernel (OEM) vulnerabilities (USN-5015-1) | 22 Jul 202100:00 | – | nessus |
| Ubuntu 20.04 LTS : Linux kernel vulnerabilities (USN-5046-1) | 19 Aug 202100:00 | – | nessus |
| Ubuntu 20.04 LTS : Linux kernel vulnerabilities (USN-5050-1) | 24 Aug 202100:00 | – | nessus |
| Unity Linux 20.1070e Security Update: kernel (UTSA-2025-414634) | 7 Oct 202500:00 | – | nessus |
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16 Dec 2021 08:00Current
8.3High risk
Vulners AI Score8.3
CVSS 24.6
CVSS 3.17.8
EPSS0.00031