Resource Leak Affecting kernel package, versions *
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Test your applications- Snyk ID SNYK-CENTOS7-KERNEL-6402852
- published 6 Mar 2024
- disclosed 4 Mar 2024
Introduced: 4 Mar 2024
CVE-2021-47105 Open this link in a new tabHow to fix?
There is no fixed version for Centos:7 kernel.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel package and not the kernel package as distributed by Centos.
See How to fix? for Centos:7 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
ice: xsk: return xsk buffers back to pool when cleaning the ring
Currently we only NULL the xdp_buff pointer in the internal SW ring but we never give it back to the xsk buffer pool. This means that buffers can be leaked out of the buff pool and never be used again.
Add missing xsk_buff_free() call to the routine that is supposed to clean the entries that are left in the ring so that these buffers in the umem can be used by other sockets.
Also, only go through the space that is actually left to be cleaned instead of a whole ring.