VLAN Device Vulnerability in Linux Kernel Affecting Network Performance

CVE-2023-53365

What is CVE-2023-53365?

A flaw in the Linux kernel's handling of VLAN devices can lead to memory corruption when a Duplicate Address Detection (DAD) Neighbor Solicitation packet is sent. The issue arises during the execution of function calls like reg_vif_xmit() and ip6mr_cache_report(), which manipulate the sk_buff structure to incorrectly set buffer data pointers. This mismanagement can result in a crash or instability in network performance, highlighting the need for immediate attention to affected kernel versions. Patch releases address this problem, ensuring better stability and reliability in network device operations.

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