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.
Product status
b4bca4722fda928810d024350493990de39f1e40 before e33fe25b1efe4f2e6a5858786dbc82ae4c44ed4c
2145583e5995598f50d66f8710c86bb1e910ac46 before b0da9504a528f05f97d926b4db74ff21917a33e9
521d42a1c24d638241220d4b9fa7e7a0ed02b88e before 5d43e1ad4567d67af2b42d3ab7c14152ffed25c6
a71b686418ee6bcb6d6365f7f6d838d9874d9c64 before 03582f4752427f60817d896f1a827aff772bd31e
b8c43360f6e424131fa81d3ba8792ad8ff25a09e before e297a2bf56d12fd7f91a0c209eb6ea84361f3368
b8c43360f6e424131fa81d3ba8792ad8ff25a09e before 837d9df9c0792902710149d1a5e0991520af0f93
b8c43360f6e424131fa81d3ba8792ad8ff25a09e before 675faf5a14c14a2be0b870db30a70764df81e2df
f01782804147a8c21f481b3342c83422c041d2c0
6.10
Any version before 6.10
5.10.227
5.15.168
6.1.113
6.6.55
6.10.14
6.11.3
6.12
References
git.kernel.org/...c/e33fe25b1efe4f2e6a5858786dbc82ae4c44ed4c
git.kernel.org/...c/b0da9504a528f05f97d926b4db74ff21917a33e9
git.kernel.org/...c/5d43e1ad4567d67af2b42d3ab7c14152ffed25c6
git.kernel.org/...c/03582f4752427f60817d896f1a827aff772bd31e
git.kernel.org/...c/e297a2bf56d12fd7f91a0c209eb6ea84361f3368
git.kernel.org/...c/837d9df9c0792902710149d1a5e0991520af0f93
git.kernel.org/...c/675faf5a14c14a2be0b870db30a70764df81e2df
