{"@context":"https://openvex.dev/ns/v0.2.0","@id":"https://database.harborguard.co/cve/CVE-2026-52993/vex.json","author":"HarborGuard Database","role":"Document Creator","timestamp":"2026-06-28T06:37:46.811Z","version":1,"tooling":"HarborGuard Database (https://database.harborguard.co)","statements":[{"vulnerability":{"name":"CVE-2026-52993","@id":"https://www.cve.org/CVERecord?id=CVE-2026-52993","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ntipc: fix double-free in tipc_buf_append()\n\ntipc_msg_validate() can potentially reallocate the skb it is validating,\nfreeing the old one.  In tipc_buf_append(), it was being called with a\npointer to a local variable which was a copy of the caller's skb\npointer.\n\nIf the skb was reallocated and validation subsequently failed, the error\nhandling path would free the original skb pointer, which had already\nbeen freed, leading to dou"},"products":[{"@id":"cpe:2.3:a:linux:linux:*:*:*:*:*:*:*:*","identifiers":{"cpe23":"cpe:2.3:a:linux:linux:*:*:*:*:*:*:*:*"}},{"@id":"cpe:2.3:a:linux:linux:4.15:*:*:*:*:*:*:*","identifiers":{"cpe23":"cpe:2.3:a:linux:linux:4.15:*:*:*:*:*:*:*"}}],"status":"affected","action_statement":"Update to a fixed version: 0, 0274f24485fc38032d4093e463dc3ff5c7a667c9, 1d5e589055880fae229e229e1929e087dbe08cf3, 29940fff14110ca48c5ccc168d121665b51bb778, 4d104882bc815d4ec666ace9155f5f52715879a6, 4ee4deadaae7cb2e3d53af0fc889cf92a73413c0, 5.10.258, 5.15.209, 6.1.175, 6.6.141, 6.12.91, 6.18.33, 7.0.10, 7.1, a438975a6dcdbd70865978c021650d1485586f0b, d293ca716e7d5dffdaecaf6b9b2f857a33dc3d3a, d3556656c6daebf8def751c7e71d11dd0a180d24.","timestamp":"2026-06-28T06:37:46.811Z"}]}