CVE-2024-49977

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.
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

History

25 Oct 2024, 20:03

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/03582f4752427f60817d896f1a827aff772bd31e - () https://git.kernel.org/stable/c/03582f4752427f60817d896f1a827aff772bd31e - Patch
References () https://git.kernel.org/stable/c/5d43e1ad4567d67af2b42d3ab7c14152ffed25c6 - () https://git.kernel.org/stable/c/5d43e1ad4567d67af2b42d3ab7c14152ffed25c6 - Patch
References () https://git.kernel.org/stable/c/675faf5a14c14a2be0b870db30a70764df81e2df - () https://git.kernel.org/stable/c/675faf5a14c14a2be0b870db30a70764df81e2df - Patch
References () https://git.kernel.org/stable/c/837d9df9c0792902710149d1a5e0991520af0f93 - () https://git.kernel.org/stable/c/837d9df9c0792902710149d1a5e0991520af0f93 - Patch
References () https://git.kernel.org/stable/c/b0da9504a528f05f97d926b4db74ff21917a33e9 - () https://git.kernel.org/stable/c/b0da9504a528f05f97d926b4db74ff21917a33e9 - Patch
References () https://git.kernel.org/stable/c/e297a2bf56d12fd7f91a0c209eb6ea84361f3368 - () https://git.kernel.org/stable/c/e297a2bf56d12fd7f91a0c209eb6ea84361f3368 - Patch
References () https://git.kernel.org/stable/c/e33fe25b1efe4f2e6a5858786dbc82ae4c44ed4c - () https://git.kernel.org/stable/c/e33fe25b1efe4f2e6a5858786dbc82ae4c44ed4c - Patch
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 5.5
First Time Linux linux Kernel
Linux
CWE CWE-369

23 Oct 2024, 15:13

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: stmmac: Fix zero-division error when disabling tc cbs el commit b8c43360f6e4 ("net: stmmac: No need to calculate speed divider when offload is disabled") permite que "port_transmit_rate_kbps" se establezca en un valor de 0, que luego se pasa a la función "div_s64" cuando tc-cbs está deshabilitado. Esto conduce a un error de división por cero. Cuando tc-cbs está deshabilitado, no es necesario configurar los valores idleslope, sendslope y credit. Por lo tanto, agregar una declaración de retorno después de establecer el modo txQ en DCB cuando tc-cbs está deshabilitado evitaría un error de división por cero.

21 Oct 2024, 18:15

Type Values Removed Values Added
New CVE

Information

Published : 2024-10-21 18:15

Updated : 2024-10-25 20:03


NVD link : CVE-2024-49977

Mitre link : CVE-2024-49977

CVE.ORG link : CVE-2024-49977


JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-369

Divide By Zero