{"id":"CVE-2026-72231","title":"batman-adv: tt: avoid request storms during pending request","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: tt: avoid request storms during pending request\n\nbatadv_send_tt_request() allocates a tt_req_node when none exists for the\ndestination originator node. This…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cvssSource":"cna","vendor":"Linux","product":"Linux","affected":["Linux >= 335fbe0f5d2501b7dd815806aef6fd9bad784eb1 < 6055695ea40c64a47e00742c12c99b1a33b4daed","Linux >= 335fbe0f5d2501b7dd815806aef6fd9bad784eb1 < 21c44a6895f41df811d1c91d10eea194dda2b345","Linux >= 335fbe0f5d2501b7dd815806aef6fd9bad784eb1 < 5e46c76d9a5062212c4c5f642a5549fd9c057f8a","Linux >= 335fbe0f5d2501b7dd815806aef6fd9bad784eb1 < 067e413eec2e63c2996909ef55214b3a0eda0be7","Linux >= 335fbe0f5d2501b7dd815806aef6fd9bad784eb1 < 716f434eb35869e130424331584a91fbb729b9bd","Linux >= 335fbe0f5d2501b7dd815806aef6fd9bad784eb1 < 6a65ac8a81e903bb4b555c1d13532f5cb0167a4a","Linux >= 335fbe0f5d2501b7dd815806aef6fd9bad784eb1 < aba1cf21954e64c36afb966b754adad2b0b8aa48","Linux >= 335fbe0f5d2501b7dd815806aef6fd9bad784eb1 < 27c7d40008231ae4140d35501b60087a9de2d2c3","Linux 3.13"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-10-16T18:44:21.954834Z"},"published":"2026-08-15","updated":"2026-10-16","sourceUpdated":"2026-10-16T18:45:03.082Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-72231","references":[{"url":"https://git.kernel.org/stable/c/6055695ea40c64a47e00742c12c99b1a33b4daed"},{"url":"https://git.kernel.org/stable/c/21c44a6895f41df811d1c91d10eea194dda2b345"},{"url":"https://git.kernel.org/stable/c/5e46c76d9a5062212c4c5f642a5549fd9c057f8a"},{"url":"https://git.kernel.org/stable/c/067e413eec2e63c2996909ef55214b3a0eda0be7"},{"url":"https://git.kernel.org/stable/c/716f434eb35869e130424331584a91fbb729b9bd"},{"url":"https://git.kernel.org/stable/c/6a65ac8a81e903bb4b555c1d13532f5cb0167a4a"},{"url":"https://git.kernel.org/stable/c/aba1cf21954e64c36afb966b754adad2b0b8aa48"},{"url":"https://git.kernel.org/stable/c/27c7d40008231ae4140d35501b60087a9de2d2c3"}],"tags":["cve.org"],"epss":0.00677,"epssPercentile":0.51314,"ingestedAt":"2026-10-16T19:46:24.419Z","slug":"CVE-2026-72231","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: tt: avoid request storms during pending request\n\nbatadv_send_tt_request() allocates a tt_req_node when none exists for the\ndestination originator node. This should prevent that a multiple TT\nrequests are send at the same time to an originator.\n\nBut if allocation of the send buffer failed, this request must be cleaned\nup again. But indicator for such a failure is \"ret == false\". But the\nactual implementation is checking for \"ret == true\".\n\nThe check must be inverted to not loose the information about the TT\nrequest directly after it was attempted to be sent out. This should avoid\npotential request storms.\n\n## Affected\n\n- `Linux >= 335fbe0f5d2501b7dd815806aef6fd9bad784eb1 < 6055695ea40c64a47e00742c12c99b1a33b4daed`\n- `Linux >= 335fbe0f5d2501b7dd815806aef6fd9bad784eb1 < 21c44a6895f41df811d1c91d10eea194dda2b345`\n- `Linux >= 335fbe0f5d2501b7dd815806aef6fd9bad784eb1 < 5e46c76d9a5062212c4c5f642a5549fd9c057f8a`\n- `Linux >= 335fbe0f5d2501b7dd815806aef6fd9bad784eb1 < 067e413eec2e63c2996909ef55214b3a0eda0be7`\n- `Linux >= 335fbe0f5d2501b7dd815806aef6fd9bad784eb1 < 716f434eb35869e130424331584a91fbb729b9bd`\n- `Linux >= 335fbe0f5d2501b7dd815806aef6fd9bad784eb1 < 6a65ac8a81e903bb4b555c1d13532f5cb0167a4a`\n- `Linux >= 335fbe0f5d2501b7dd815806aef6fd9bad784eb1 < aba1cf21954e64c36afb966b754adad2b0b8aa48`\n- `Linux >= 335fbe0f5d2501b7dd815806aef6fd9bad784eb1 < 27c7d40008231ae4140d35501b60087a9de2d2c3`\n- `Linux 3.13`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}