发布时间: 2024年6月13日
修改时间: 2024年7月2日
In the Linux kernel, the following vulnerability has been resolved:nfp: Fix memory leak in nfp_cpp_area_cache_add()In line 800 (#1), nfp_cpp_area_alloc() allocates and initializes aCPP area structure. But in line 807 (#2), when the cache is allocatedfailed, this CPP area structure is not freed, which will result inmemory leak.We can fix it by freeing the CPP area when the cache is allocatedfailed (#2).792 int nfp_cpp_area_cache_add(struct nfp_cpp *cpp, size_t size)793 {794 struct nfp_cpp_area_cache *cache;795 struct nfp_cpp_area *area;800 area = nfp_cpp_area_alloc(cpp, NFP_CPP_ID(7, NFP_CPP_ACTION_RW, 0),801 0, size); // #1: allocates and initializes802 if (!area)803 return -ENOMEM;805 cache = kzalloc(sizeof(*cache), GFP_KERNEL);806 if (!cache)807 return -ENOMEM; // #2: missing free817 return 0;818 }
| 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-2024-2720 | In the Linux kernel, the following vulnerability has been resolved:nfp: Fix memory leak in nfp_cpp_area_cache_add()In line 800 (#1), nfp_cpp_area_alloc() allocates and initializes aCPP area structure. But in line 807 (#2), when the cache is allocatedfailed, this CPP area structure is not freed, which will result inmemory leak.We can fix it by freeing the CPP area when the cache is allocatedfailed (#2).792 int nfp_cpp_area_cache_add(struct nfp_cpp *cpp, size_t size)793 {794 struct nfp_cpp_area_cache *cache;795 struct nfp_cpp_area *area;800 area = nfp_cpp_area_alloc(cpp, NFP_CPP_ID(7, NFP_CPP_ACTION_RW, 0),801 0, size); // #1: allocates and initializes802 if (!area)803 return -ENOMEM;805 cache = kzalloc(sizeof(*cache), GFP_KERNEL);806 if (!cache)807 return -ENOMEM; // #2: missing free817 return 0;818 } | 2024年6月13日 |
| KylinSec-SA-2024-4787 | kernel security update | 2024年6月21日 |
| 产品 | 包 | 状态 |
|---|---|---|
| KY3.4-5A | kernel | Fixed |
| KY3.5.2 | kernel | Unaffected |
| V6 | kernel | Unaffected |
