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CVE-2021-47159

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CVE-2021-47159

Published: Mar 25, 2024

Modified: May 11, 2026

PUBLISHED

Description

In the Linux kernel, the following vulnerability has been resolved: net: dsa: fix a crash if ->get_sset_count() fails If ds->ops->get_sset_count() fails then it "count" is a negative error code such as -EOPNOTSUPP. Because "i" is an unsigned int, the negative error code is type promoted to a very high value and the loop will corrupt memory until the system crashes. Fix this by checking for error codes and changing the type of "i" to just int.

VendorProductVersions

Linux

Linux

affected
badf3ada60ab8f76f9488dc8f5c0c57f70682f5a - < 0f2cb08c57edefb0e7b5045e0e3e9980a3d3aa37
affected
badf3ada60ab8f76f9488dc8f5c0c57f70682f5a - < ce5355f140a7987011388c7e30c4f8fbe180d3e8
affected
badf3ada60ab8f76f9488dc8f5c0c57f70682f5a - < caff86f85512b8e0d9830e8b8b0dfe13c68ce5b6
affected
badf3ada60ab8f76f9488dc8f5c0c57f70682f5a - < 7b22466648a4f8e3e94f57ca428d1531866d1373
affected
badf3ada60ab8f76f9488dc8f5c0c57f70682f5a - < a269333fa5c0c8e53c92b5a28a6076a28cde3e83

Linux

Linux

affected
4.7
unaffected
0 - < 4.7
unaffected
4.19.193 - <= 4.19.*
unaffected
5.4.124 - <= 5.4.*
unaffected
5.10.42 - <= 5.10.*

+2 more versions

References

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