https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Sun, 04 Oct 2026 06:38:45 +0000 https://vulnerability.circl.lu/vuln/cve-2024-39490 <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>ipv6: sr: fix missing sk_buff release in seg6_input_core</p> <p>The seg6_input() function is responsible for adding the SRH into a packet, delegating the operation to the seg6_input_core(). This function uses the skb_cow_head() to ensure that there is sufficient headroom in the sk_buff for accommodating the link-layer header. In the event that the skb_cow_header() function fails, the seg6_input_core() catches the error but it does not release the sk_buff, which will result in a memory leak.</p> <p>This issue was introduced in commit af3b5158b89d (&#34;ipv6: sr: fix BUG due to headroom too small after SRH push&#34;) and persists even after commit 7a3f5b0de364 (&#34;netfilter: add netfilter hooks to SRv6 data plane&#34;), where the entire seg6_input() code was refactored to deal with netfilter hooks.</p> <p>The proposed patch addresses the identified memory leak by requiring the seg6_input_core() function to release the sk_buff in the event that skb_cow_head() fails.</p> <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>ipv6: sr: fix missing sk_buff release in seg6_input_core</p> <p>The seg6_input() function is responsible for adding the SRH into a packet, delegating the operation to the seg6_input_core(). This function uses the skb_cow_head() to ensure that there is sufficient headroom in the sk_buff for accommodating the link-layer header. In the event that the skb_cow_header() function fails, the seg6_input_core() catches the error but it does not release the sk_buff, which will result in a memory leak.</p> <p>This issue was introduced in commit af3b5158b89d (&#34;ipv6: sr: fix BUG due to headroom too small after SRH push&#34;) and persists even after commit 7a3f5b0de364 (&#34;netfilter: add netfilter hooks to SRv6 data plane&#34;), where the entire seg6_input() code was refactored to deal with netfilter hooks.</p> <p>The proposed patch addresses the identified memory leak by requiring the seg6_input_core() function to release the sk_buff in the event that skb_cow_head() fails.</p> https://vulnerability.circl.lu/vuln/cve-2024-39490