CVE-2024-49977

CVE Details

Release Date:	2024-10-21
Impact:	Low	What is this?

Description

In the Linux kernel, the following vulnerability has been resolved:\nnet: stmmac: Fix zero-division error when disabling tc cbs\nThe commit b8c43360f6e4 ('net: stmmac: No need to calculate speed divider\nwhen offload is disabled') allows the 'port_transmit_rate_kbps' to be\nset to a value of 0, which is then passed to the 'div_s64' function when\ntc-cbs is disabled. This leads to a zero-division error.\nWhen tc-cbs is disabled, the idleslope, sendslope, and credit values the\ncredit values are not required to be configured. Therefore, adding a return\nstatement after setting the txQ mode to DCB when tc-cbs is disabled would\nprevent a zero-division error.

See more information about CVE-2024-49977 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v3 metrics

Base Score:	4.4
Vector String:	CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Version:	3.1
Attack Vector:	Local
Attack Complexity:	Low
Privileges Required:	High
User Interaction:	None
Scope:	Unchanged
Confidentiality Impact:	None
Integrity Impact:	None
Availability Impact:	High

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