Memory Leak Affecting kernel-zfcpdump-modules-internal package, versions *
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Test your applications- Snyk ID SNYK-RHEL9-KERNELZFCPDUMPMODULESINTERNAL-7121990
- published 27 May 2024
- disclosed 24 May 2024
Introduced: 24 May 2024
New CVE-2021-47516 Open this link in a new tabHow to fix?
There is no fixed version for RHEL:9 kernel-zfcpdump-modules-internal.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-zfcpdump-modules-internal package and not the kernel-zfcpdump-modules-internal package as distributed by RHEL.
See How to fix? for RHEL:9 relevant fixed versions and status.
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 a CPP area structure. But in line 807 (#2), when the cache is allocated failed, this CPP area structure is not freed, which will result in memory leak.
We can fix it by freeing the CPP area when the cache is allocated failed (#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 initializes
802 if (!area) 803 return -ENOMEM;
805 cache = kzalloc(sizeof(*cache), GFP_KERNEL); 806 if (!cache) 807 return -ENOMEM; // #2: missing free
817 return 0; 818 }
References
- https://access.redhat.com/security/cve/CVE-2021-47516
- https://git.kernel.org/stable/c/2e0e072e62fdaf7816220af08e05c020f0fcb77a
- https://git.kernel.org/stable/c/3e93abcdcec0436fbf0b6a88ae806902426895a2
- https://git.kernel.org/stable/c/484069b5de9d223cc1c64c6f80389a99cfef51f1
- https://git.kernel.org/stable/c/c56c96303e9289cc34716b1179597b6f470833de
- https://git.kernel.org/stable/c/eb51f639ef3fd5498b7def290ed8681b6aadd9a7
- https://git.kernel.org/stable/c/f707820c09239d6f67699d9b2ff57863cc7905b0