CVE-2024-49977
Description
In the Linux kernel, the following vulnerability has been resolved: net: stmmac: Fix zero-division error when disabling tc cbs The commit b8c43360f6e4 ("net: stmmac: No need to calculate speed divider when offload is disabled") allows the "port_transmit_rate_kbps" to be set to a value of 0, which is then passed to the "div_s64" function when tc-cbs is disabled. This leads to a zero-division error. When tc-cbs is disabled, the idleslope, sendslope, and credit values the credit values are not required to be configured. Therefore, adding a return statement after setting the txQ mode to DCB when tc-cbs is disabled would prevent a zero-division error.
How to fix
- linux linux_kernel5.10.227, 5.15.168, 6.1.113, 6.6.55, 6.10, 6.10.14, 6.11.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 5.10.221 ≤ v < 5.10.227, 5.15.162 ≤ v < 5.15.168, 6.1.96 ≤ v < 6.1.113, 6.6.36 ≤ v < 6.6.55, 6.9.7 ≤ v < 6.10, 6.10 ≤ v < 6.10.14, 6.11 ≤ v < 6.11.3 | 5.10.227, 5.15.168, 6.1.113, 6.6.55, 6.10, 6.10.14, 6.11.3 |
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