Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2021-47305

In the Linux kernel, the following vulnerability has been resolved: dma-buf/sync_file: Don't leak fences on merge failure Each add_fence() call does a dma_fence_get() on the relevant fence. In the error path, we weren't calling dma_fence_put() so all those fences got leaked. Also, in the krealloc_array failure case, we weren't freeing the fences array. Instead, ensure that i and fences are always zero-initialized and dma_fence_put() all the fences and kfree(fences) on every error path.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 0.2%
CVSS Severity
CVSS v3 Score 5.5
References
Products affected by CVE-2021-47305


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