Updated: 2024-11-24 05:45:14.041493
Description:
In the Linux kernel, the following vulnerability has been resolved: media: pvrusb2: fix use after free on context disconnection Upon module load, a kthread is created targeting the pvr2_context_thread_func function, which may call pvr2_context_destroy and thus call kfree() on the context object. However, that might happen before the usb hub_event handler is able to notify the driver. This patch adds a sanity check before the invalid read reported by syzbot, within the context disconnection call stack.
| 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 | Not Vulnerable | 2025-01-17 01:25:43 | ||
| AlmaLinux 9.2 FIPS | kernel | 5.14.0 | 7.8 | HIGH | Not Vulnerable | 2024-04-09 11:13:40 | ||
| CentOS 6 ELS | kernel | 2.6.32 | 7.8 | HIGH | Released | CLSA-2024:1724774331 | 2024-09-09 12:27:35 | |
| CentOS 7 ELS | kernel | 3.10.0 | 7.8 | HIGH | Released | CLSA-2024:1720468480 | 2024-07-23 17:23:50 | |
| CentOS 8.4 ELS | kernel | 4.18.0 | 7.8 | HIGH | Released | CLSA-2024:1711026398 | 2024-03-21 09:52:31 | |
| CentOS 8.5 ELS | kernel | 4.18.0 | 7.8 | HIGH | Released | CLSA-2024:1711026811 | 2024-03-21 09:52:32 | |
| CentOS Stream 8 ELS | kernel | 4.18.0 | 7.8 | HIGH | Already Fixed | 2024-06-09 11:19:58 | ||
| CloudLinux 6 ELS | kernel | 2.6.32 | 7.8 | HIGH | Ignored | 2025-01-10 22:44:12 | ||
| Oracle Linux 6 ELS | kernel | 2.6.32 | 7.8 | HIGH | Released | CLSA-2024:1725187614 | 2024-09-01 12:25:39 | |
| Ubuntu 16.04 ELS | linux-hwe | 4.15.0 | 7.8 | HIGH | Released | CLSA-2024:1710946064 | 2024-03-20 11:09:32 |