Description

In the Linux kernel, the following vulnerability has been resolved: mlxsw: spectrum: Protect driver from buggy firmware When processing port up/down events generated by the device's firmware, the driver protects itself from events reported for non-existent local ports, but not the CPU port (local port 0), which exists, but lacks a netdev. This can result in a NULL pointer dereference when calling netif_carrier_{on,off}(). Fix this by bailing early when processing an event reported for the CPU port. Problem was only observed when running on top of a buggy emulator.

INFO

Published Date :

2024-05-24T15:12:49.369Z

Last Modified :

2025-05-04T07:13:35.182Z

Source :

Linux
AFFECTED PRODUCTS

The following products are affected by CVE-2021-47560 vulnerability.

Vendors Products
Linux
  • Linux Kernel
Redhat
  • Enterprise Linux
  • Rhel Aus
  • Rhel E4s
  • Rhel Eus
  • Rhel Tus
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2021-47560.

URL Resource
https://git.kernel.org/stable/c/63b08b1f6834bbb0b4f7783bf63b80c8c8e9a047 cve-icon cve-icon
https://git.kernel.org/stable/c/90d0736876c50ecde1a3275636a06b9ddb1cace9 cve-icon cve-icon
https://git.kernel.org/stable/c/da4d70199e5d82da664a80077508d6c18f5e76df cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2024052451-CVE-2021-47560-4a52@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2021-47560 cve-icon
https://www.cve.org/CVERecord?id=CVE-2021-47560 cve-icon
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