Updated: 2024-11-04 15:58:28.413041
Description:
In the Linux kernel, the following vulnerability has been resolved: net/xen-netback: prevent UAF in xenvif_flush_hash() During the list_for_each_entry_rcu iteration call of xenvif_flush_hash, kfree_rcu does not exist inside the rcu read critical section, so if kfree_rcu is called when the rcu grace period ends during the iteration, UAF occurs when accessing head->next after the entry becomes free. Therefore, to solve this, you need to change it to list_for_each_entry_safe.
| Links | NIST | CIRCL | RHEL | Ubuntu |
| Severity | Score | |
|---|---|---|
| CVSS Version 2.x | 0 | |
| CVSS Version 3.x | HIGH | 7.8 |
| OS name | Project name | Version | Score | Severity | Status | Errata | Last updated | Statement |
|---|---|---|---|---|---|---|---|---|
| AlmaLinux 9.2 ESU | kernel | 5.14.0 | 7.8 | HIGH | Needs Triage | 2024-11-04 13:27:11 | ||
| AlmaLinux 9.2 FIPS | kernel | 5.14.0 | 7.8 | HIGH | Not Vulnerable | 2024-12-06 03:33:32 | ||
| CentOS 6 ELS | kernel | 2.6.32 | 7.8 | HIGH | Not Vulnerable | 2024-11-06 11:57:02 | ||
| CentOS 7 ELS | kernel | 3.10.0 | 7.8 | HIGH | Not Vulnerable | 2024-11-06 11:56:57 | ||
| CentOS 8.4 ELS | kernel | 4.18.0 | 7.8 | HIGH | Not Vulnerable | 2024-11-11 11:52:56 | ||
| CentOS 8.5 ELS | kernel | 4.18.0 | 7.8 | HIGH | Not Vulnerable | 2024-11-11 13:29:06 | ||
| CentOS Stream 8 ELS | kernel | 4.18.0 | 7.8 | HIGH | Not Vulnerable | 2024-11-07 02:47:24 | ||
| CloudLinux 6 ELS | kernel | 2.6.32 | 7.8 | HIGH | Not Vulnerable | 2024-11-06 11:57:02 | ||
| CloudLinux 7 ELS | kernel | 3.10.0 | 7.8 | HIGH | Not Vulnerable | 2024-11-06 11:56:56 | ||
| Oracle Linux 6 ELS | kernel | 2.6.32 | 7.8 | HIGH | Not Vulnerable | 2024-11-06 11:56:57 |