In the Linux kernel, the following vulnerability has been resolved: netlink: Fix wraparounds of sk->sk_rmem_alloc. Netlink has this pattern in some places if (atomic_read(&sk->sk_rmem_alloc) > sk->sk_rcvbuf) atomic_add(skb->truesize, &sk->sk_rmem_alloc); , which has the same problem fixed by commit 5a465a0da13e ("udp: Fix multiple wraparounds of sk->sk_rmem_alloc."). For example, if we set INT_MAX to SO_RCVBUFFORCE, the condition is always false as the two operands are of int. Then, a single socket can eat as many skb as possible until OOM happens, and we can see multiple wraparounds of sk->sk_rmem_alloc. Let's fix it by using atomic_add_return() and comparing the two variables as unsigned int. Before: [root@fedora ~]# ss -f netlink Recv-Q Send-Q Local Address:Port Peer Address:Port -1668710080 0 rtnl:nl_wraparound/293 * After: [root@fedora ~]# ss -f netlink Recv-Q Send-Q Local Address:Port Peer Address:Port 2147483072 0 rtnl:nl_wraparound/290 * ^ `--- INT_MAX - 576
This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 5.5, requiring local system access to exploit with relatively low complexity without requiring user interaction requiring only low-level privileges . The vulnerability impacts and availability (service disruption) for affected systems. Impacting 2 products from linux, from debian organizations running these solutions should prioritize assessment and patching.
Reported in 2025, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.
2025-07-25T16:15:32.527
2025-12-22T19:36:22.690
Analyzed
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSSv3.1: 5.5 (MEDIUM)
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | linux | linux_kernel | < 5.4.296 | Yes |
| Operating System | linux | linux_kernel | < 5.10.240 | Yes |
| Operating System | linux | linux_kernel | < 5.15.189 | Yes |
| Operating System | linux | linux_kernel | < 6.1.146 | Yes |
| Operating System | linux | linux_kernel | < 6.6.99 | Yes |
| Operating System | linux | linux_kernel | < 6.12.39 | Yes |
| Operating System | linux | linux_kernel | < 6.15.7 | Yes |
| Operating System | linux | linux_kernel | 2.6.12 | Yes |
| Operating System | linux | linux_kernel | 2.6.12 | Yes |
| Operating System | linux | linux_kernel | 2.6.12 | Yes |
| Operating System | linux | linux_kernel | 2.6.12 | Yes |
| Operating System | linux | linux_kernel | 2.6.12 | Yes |
| Operating System | linux | linux_kernel | 6.16 | Yes |
| Operating System | linux | linux_kernel | 6.16 | Yes |
| Operating System | linux | linux_kernel | 6.16 | Yes |
| Operating System | linux | linux_kernel | 6.16 | Yes |
| Operating System | linux | linux_kernel | 6.16 | Yes |
| Operating System | debian | debian_linux | 11.0 | Yes |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For linux's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.