{"id":"CVE-2026-72319","title":"ipvs: ensure inner headers in ICMP errors are in headroom","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nipvs: ensure inner headers in ICMP errors are in headroom\n\nSashiko points out that after stripping the outer headers\nwith pskb_pull() we should ensure the inner IP head…","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cvssSource":"cna","vendor":"Linux","product":"Linux","affected":["Linux >= f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e < 19657b3a17b774ae4e2f2635b5ae8638c9344a40","Linux >= f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e < dac813101914c21219ac221a60a31a11bc90e7ec","Linux >= f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e < dd22f74a09e25ca298ced0a3763ef353242cb78d","Linux >= f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e < 9bc9b95aee2b2e3f1301a16a67ee504960402875","Linux >= f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e < a735f9964a3d9ed97daf9b08507f8b5bcafe6326","Linux >= f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e < 8f48cfe657409fb5c7ba0521b14da6d47546d9cf","Linux >= f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e < 92185d6f7819bc558939ae83de7b1abe90e3b5c2","Linux >= f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e < 3f7a535ff0fa627a0132803e4c2f903ceffcbc1c","Linux 3.7"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"total","timestamp":"2026-10-16T18:46:50.262793Z"},"published":"2026-08-15","updated":"2026-10-16","sourceUpdated":"2026-10-16T18:55:17.469Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-72319","references":[{"url":"https://git.kernel.org/stable/c/19657b3a17b774ae4e2f2635b5ae8638c9344a40"},{"url":"https://git.kernel.org/stable/c/dac813101914c21219ac221a60a31a11bc90e7ec"},{"url":"https://git.kernel.org/stable/c/dd22f74a09e25ca298ced0a3763ef353242cb78d"},{"url":"https://git.kernel.org/stable/c/9bc9b95aee2b2e3f1301a16a67ee504960402875"},{"url":"https://git.kernel.org/stable/c/a735f9964a3d9ed97daf9b08507f8b5bcafe6326"},{"url":"https://git.kernel.org/stable/c/8f48cfe657409fb5c7ba0521b14da6d47546d9cf"},{"url":"https://git.kernel.org/stable/c/92185d6f7819bc558939ae83de7b1abe90e3b5c2"},{"url":"https://git.kernel.org/stable/c/3f7a535ff0fa627a0132803e4c2f903ceffcbc1c"}],"tags":["cve.org"],"epss":0.00755,"epssPercentile":0.54209,"ingestedAt":"2026-10-16T19:46:24.408Z","slug":"CVE-2026-72319","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nipvs: ensure inner headers in ICMP errors are in headroom\n\nSashiko points out that after stripping the outer headers\nwith pskb_pull() we should ensure the inner IP headers\nin ICMP errors from tunnels are present in the skb headroom\nfor functions like ipv4_update_pmtu(), icmp_send() and\nIP_VS_DBG().\n\nAlso, add more checks for the length of the inner headers.\n\n## Affected\n\n- `Linux >= f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e < 19657b3a17b774ae4e2f2635b5ae8638c9344a40`\n- `Linux >= f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e < dac813101914c21219ac221a60a31a11bc90e7ec`\n- `Linux >= f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e < dd22f74a09e25ca298ced0a3763ef353242cb78d`\n- `Linux >= f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e < 9bc9b95aee2b2e3f1301a16a67ee504960402875`\n- `Linux >= f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e < a735f9964a3d9ed97daf9b08507f8b5bcafe6326`\n- `Linux >= f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e < 8f48cfe657409fb5c7ba0521b14da6d47546d9cf`\n- `Linux >= f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e < 92185d6f7819bc558939ae83de7b1abe90e3b5c2`\n- `Linux >= f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e < 3f7a535ff0fa627a0132803e4c2f903ceffcbc1c`\n- `Linux 3.7`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":53.9,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}