CVE-2021-47159
High
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.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux Kernel
PublishedMar 25, 2024
First seenMar 25, 2024
How to fix
Update
- linux linux_kernel4.19.193, 5.4.124, 5.10.42, 5.12.9 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 4.7 ≤ v < 4.19.193, 4.20 ≤ v < 5.4.124, 5.5 ≤ v < 5.10.42, 5.11 ≤ v < 5.12.9, 5.13 | 4.19.193, 5.4.124, 5.10.42, 5.12.9 |
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