Threats Tagged 'cve-2026-43098'

In the Linux kernel, the following vulnerability has been resolved: nfc: s3fwrn5: allocate rx skb before consuming bytes s3fwrn82_uart_read() reports the number of accepted bytes to the serdev core. The current code consumes bytes into recv_skb and may already deliver a complete frame before allocating a fresh receive buffer. If that alloc_skb() fails, the callback returns 0 even though it has already consumed bytes, and it leaves recv_skb as NULL for the next receive callback. That breaks the receive_buf() accounting contract and can also lead to a NULL dereference on the next skb_put_u8(). Allocate the receive skb lazily before consuming the next byte instead. If allocation fails, return the number of bytes already accepted.

Multiple vulnerabilities have been identified in the Linux kernel, which is the core component of the Linux operating system. These vulnerabilities are cataloged under CVE-2026-43059 and are associated with the CWE-416 category (Use After Free). The affected products include various Linux distributions such as Amazon Linux 2 and Debian Linux, as well as Google-related Linux environments. No specific technical details or CVSS scores are provided, and there are no known exploits in the wild at this time.