CyberRota Analysis
AI-GeneratedThe vulnerability affects the Linux kernel's rtase module, where a double free of the socket buffer (skb) can occur during DMA mapping failures after fragment transmission. This flaw can lead to potential memory corruption, resulting in system instability or crashes. Organizations utilizing Linux systems, particularly those relying on the rtase module for network operations, should prioritize addressing this issue to mitigate risks associated with memory management errors.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: rtase: fix double free of multi-frag skb on DMA map failure In rtase_start_xmit(), when the head buffer DMA mapping fails after rtase_xmit_frags() has mapped all fragments, the error path clears the fragment descriptors with rtase_tx_clear_range(), which frees the skb through the last-frag slot and accounts tx_dropped. Control then falls through to the common error label, which frees the same skb a second time and counts it again. Return right after clearing the fragments when the skb owns frags; the no-frag case still drops through and frees the head skb once.