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Vulnerability Change Records for CVE-2022-49642

Change History

New CVE Received from kernel.org 2/26/2025 2:01:39 AM

Action Type Old Value New Value
Added Description

								
							
							
						
In the Linux kernel, the following vulnerability has been resolved:

net: stmmac: dwc-qos: Disable split header for Tegra194

There is a long-standing issue with the Synopsys DWC Ethernet driver
for Tegra194 where random system crashes have been observed [0]. The
problem occurs when the split header feature is enabled in the stmmac
driver. In the bad case, a larger than expected buffer length is
received and causes the calculation of the total buffer length to
overflow. This results in a very large buffer length that causes the
kernel to crash. Why this larger buffer length is received is not clear,
however, the feedback from the NVIDIA design team is that the split
header feature is not supported for Tegra194. Therefore, disable split
header support for Tegra194 to prevent these random crashes from
occurring.

[0] https://lore.kernel.org/linux-tegra/b0b17697-f23e-8fa5-3757-604a86f3a095@nvidia.com/
Added Reference

								
							
							
						
https://git.kernel.org/stable/c/029c1c2059e9c4b38f97a06204cdecd10cfbeb8a
Added Reference

								
							
							
						
https://git.kernel.org/stable/c/2968830c9b47ce093237483c6207c61065712386
Added Reference

								
							
							
						
https://git.kernel.org/stable/c/9cc8edc571b871d974b3289868553f9ce544aba6
Added Reference

								
							
							
						
https://git.kernel.org/stable/c/cfa4caf3e881ad6dd366c903c34f1c7f21b857ab
Added Reference

								
							
							
						
https://git.kernel.org/stable/c/d5c315a787652c35045044877a249f7d5c8a4104