https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Tue, 29 Sep 2026 19:50:45 +0000 https://vulnerability.circl.lu/vuln/cve-2025-39847 <p><strong>Affected:</strong> Linux, Siemens SIMATIC CN 4100</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>ppp: fix memory leak in pad_compress_skb</p> <p>If alloc_skb() fails in pad_compress_skb(), it returns NULL without releasing the old skb. The caller does:</p> <p>skb = pad_compress_skb(ppp, skb); if (!skb) goto drop;</p> <p>drop: kfree_skb(skb);</p> <p>When pad_compress_skb() returns NULL, the reference to the old skb is lost and kfree_skb(skb) ends up doing nothing, leading to a memory leak.</p> <p>Align pad_compress_skb() semantics with realloc(): only free the old skb if allocation and compression succeed. At the call site, use the new_skb variable so the original skb is not lost when pad_compress_skb() fails.</p> <p><strong>Affected:</strong> Linux, Siemens SIMATIC CN 4100</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>ppp: fix memory leak in pad_compress_skb</p> <p>If alloc_skb() fails in pad_compress_skb(), it returns NULL without releasing the old skb. The caller does:</p> <p>skb = pad_compress_skb(ppp, skb); if (!skb) goto drop;</p> <p>drop: kfree_skb(skb);</p> <p>When pad_compress_skb() returns NULL, the reference to the old skb is lost and kfree_skb(skb) ends up doing nothing, leading to a memory leak.</p> <p>Align pad_compress_skb() semantics with realloc(): only free the old skb if allocation and compression succeed. At the call site, use the new_skb variable so the original skb is not lost when pad_compress_skb() fails.</p> https://vulnerability.circl.lu/vuln/cve-2025-39847