Vulnerability Details CVE-2021-47655
In the Linux kernel, the following vulnerability has been resolved:
media: venus: vdec: fixed possible memory leak issue
The venus_helper_alloc_dpb_bufs() implementation allows an early return
on an error path when checking the id from ida_alloc_min() which would
not release the earlier buffer allocation.
Move the direct kfree() from the error checking of dma_alloc_attrs() to
the common fail path to ensure that allocations are released on all
error paths in this function.
Addresses-Coverity: 1494120 ("Resource leak")
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 2.5%
CVSS Severity
CVSS v3 Score 5.5
References
Products affected by CVE-2021-47655
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cpe:2.3:o:linux:linux_kernel:5.16
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cpe:2.3:o:linux:linux_kernel:5.16.0
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cpe:2.3:o:linux:linux_kernel:5.16.1
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cpe:2.3:o:linux:linux_kernel:5.16.10
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cpe:2.3:o:linux:linux_kernel:5.16.11
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cpe:2.3:o:linux:linux_kernel:5.16.12
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cpe:2.3:o:linux:linux_kernel:5.16.13
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cpe:2.3:o:linux:linux_kernel:5.16.14
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cpe:2.3:o:linux:linux_kernel:5.16.15
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cpe:2.3:o:linux:linux_kernel:5.16.16
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cpe:2.3:o:linux:linux_kernel:5.16.17
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cpe:2.3:o:linux:linux_kernel:5.16.18
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cpe:2.3:o:linux:linux_kernel:5.16.2
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cpe:2.3:o:linux:linux_kernel:5.16.3
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cpe:2.3:o:linux:linux_kernel:5.16.4
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cpe:2.3:o:linux:linux_kernel:5.16.5
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cpe:2.3:o:linux:linux_kernel:5.16.6
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cpe:2.3:o:linux:linux_kernel:5.16.7
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cpe:2.3:o:linux:linux_kernel:5.16.8
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cpe:2.3:o:linux:linux_kernel:5.16.9
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cpe:2.3:o:linux:linux_kernel:5.17
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cpe:2.3:o:linux:linux_kernel:5.17.1