Vulnerability Details CVE-2021-47671
In the Linux kernel, the following vulnerability has been resolved:
can: etas_es58x: es58x_rx_err_msg(): fix memory leak in error path
In es58x_rx_err_msg(), if can->do_set_mode() fails, the function
directly returns without calling netif_rx(skb). This means that the
skb previously allocated by alloc_can_err_skb() is not freed. In other
terms, this is a memory leak.
This patch simply removes the return statement in the error branch and
let the function continue.
Issue was found with GCC -fanalyzer, please follow the link below for
details.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 1.4%
CVSS Severity
CVSS v3 Score 3.3
References
Products affected by CVE-2021-47671
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cpe:2.3:o:linux:linux_kernel:5.13
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cpe:2.3:o:linux:linux_kernel:5.13.0-52
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cpe:2.3:o:linux:linux_kernel:5.13.1
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cpe:2.3:o:linux:linux_kernel:5.13.10
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cpe:2.3:o:linux:linux_kernel:5.13.11
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cpe:2.3:o:linux:linux_kernel:5.13.12
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cpe:2.3:o:linux:linux_kernel:5.13.13
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cpe:2.3:o:linux:linux_kernel:5.13.14
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cpe:2.3:o:linux:linux_kernel:5.13.15
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cpe:2.3:o:linux:linux_kernel:5.13.16
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cpe:2.3:o:linux:linux_kernel:5.13.17
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cpe:2.3:o:linux:linux_kernel:5.13.18
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cpe:2.3:o:linux:linux_kernel:5.13.19
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cpe:2.3:o:linux:linux_kernel:5.13.2
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cpe:2.3:o:linux:linux_kernel:5.13.3
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cpe:2.3:o:linux:linux_kernel:5.13.4
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cpe:2.3:o:linux:linux_kernel:5.13.5
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cpe:2.3:o:linux:linux_kernel:5.13.6
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cpe:2.3:o:linux:linux_kernel:5.13.7
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cpe:2.3:o:linux:linux_kernel:5.13.8
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cpe:2.3:o:linux:linux_kernel:5.13.9
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cpe:2.3:o:linux:linux_kernel:5.14
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cpe:2.3:o:linux:linux_kernel:5.14.1
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cpe:2.3:o:linux:linux_kernel:5.14.10
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cpe:2.3:o:linux:linux_kernel:5.14.11
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cpe:2.3:o:linux:linux_kernel:5.14.12
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cpe:2.3:o:linux:linux_kernel:5.14.13
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cpe:2.3:o:linux:linux_kernel:5.14.14
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cpe:2.3:o:linux:linux_kernel:5.14.15
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cpe:2.3:o:linux:linux_kernel:5.14.16
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cpe:2.3:o:linux:linux_kernel:5.14.17
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cpe:2.3:o:linux:linux_kernel:5.14.18
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cpe:2.3:o:linux:linux_kernel:5.14.2
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cpe:2.3:o:linux:linux_kernel:5.14.3
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cpe:2.3:o:linux:linux_kernel:5.14.4
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cpe:2.3:o:linux:linux_kernel:5.14.5
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cpe:2.3:o:linux:linux_kernel:5.14.6
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cpe:2.3:o:linux:linux_kernel:5.14.7
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cpe:2.3:o:linux:linux_kernel:5.14.8
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cpe:2.3:o:linux:linux_kernel:5.14.9
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cpe:2.3:o:linux:linux_kernel:5.15
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cpe:2.3:o:linux:linux_kernel:5.15.0
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cpe:2.3:o:linux:linux_kernel:5.15.0-58
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cpe:2.3:o:linux:linux_kernel:5.15.1
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cpe:2.3:o:linux:linux_kernel:5.15.2