发布时间: 2024年6月19日
修改时间: 2024年8月30日
In the Linux kernel, the following vulnerability has been resolved:cgroup: Add missing cpus_read_lock() to cgroup_attach_task_all()syzbot is hitting percpu_rwsem_assert_held(&cpu_hotplug_lock) warning atcpuset_attach() [1], for commit 4f7e7236435ca0ab ( cgroup: Fixthreadgroup_rwsem <-> cpus_read_lock() deadlock ) missed thatcpuset_attach() is also called from cgroup_attach_task_all().Add cpus_read_lock() like what cgroup_procs_write_start() does.
| NVD | openEuler | |
|---|---|---|
| CVSS评分 | 5.5 | 5.5 |
| Attack Vector | Local | Local |
| Attack Complexity | Low | Low |
| Privileges Required | Low | Low |
| User Interaction | None | None |
| Scope | Unchanged | Unchanged |
| Confidentiality | None | None |
| Integrity | None | None |
| Availability | High | High |
| 公告名 | 概要 | 发布时间 |
|---|---|---|
| KylinSec-SA-2024-2777 | In the Linux kernel, the following vulnerability has been resolved:cgroup: Add missing cpus_read_lock() to cgroup_attach_task_all()syzbot is hitting percpu_rwsem_assert_held(&cpu_hotplug_lock) warning atcpuset_attach() [1], for commit 4f7e7236435ca0ab ( cgroup: Fixthreadgroup_rwsem <-> cpus_read_lock() deadlock ) missed thatcpuset_attach() is also called from cgroup_attach_task_all().Add cpus_read_lock() like what cgroup_procs_write_start() does. | 2024年6月19日 |
| KylinSec-SA-2024-4977 | kernel security update | 2024年8月30日 |
| 产品 | 包 | 状态 |
|---|---|---|
| KY3.4-5A | kernel | Unaffected |
| KY3.5.2 | kernel | Fixed |
| KY3.5.2 | kernel | Unaffected |
| V6 | kernel | Unaffected |
