{"id":"CVE-2026-72234","revision":"339e007fcc22462286057224604796f7","records":[{"revision":"339e007fcc22462286057224604796f7","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-72234","aliases":[],"title":"batman-adv: access unicast_ttvn skb->data only after skb realloc","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: access unicast_ttvn skb->data only after skb realloc\n\nThe pskb_may_pull() called by batadv_get_vid() could reallocate the buffer\nbehind the skb. Variables which were pointing to the old buffer need to be\nreassigned to avoid an use-after-free.\n\nThis was done correctly for the ethernet header but missed for the\nunicast_packet pointer.","state":0,"publishedAt":"2026-08-15T05:54:24.395+00:00","modifiedAt":"2026-10-16T18:45:03.804+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"net/batman-adv/routing.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"c018ad3de61a1dc4194879a53e5559e094aa7b1a\",\n                            \"lessThan\": \"aa9558af859934f24717d4bab97d61004f91a736\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c018ad3de61a1dc4194879a53e5559e094aa7b1a\",\n                            \"lessThan\": \"9c2c05629e46c1fd43931506d41c56a885a98eb4\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c018ad3de61a1dc4194879a53e5559e094aa7b1a\",\n                            \"lessThan\": \"7b162b36de750565404cd3b98315706622c6974f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c018ad3de61a1dc4194879a53e5559e094aa7b1a\",\n                            \"lessThan\": \"ed90eb5c68420cdfe67ec1f773324198d2ef6f50\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c018ad3de61a1dc4194879a53e5559e094aa7b1a\",\n                            \"lessThan\": \"979175834a699ccc3c4c0b0ba60ecae0f135a587\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c018ad3de61a1dc4194879a53e5559e094aa7b1a\",\n                            \"lessThan\": \"b8afcf799b2cc92c41beebd029e53ed18960184a\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c018ad3de61a1dc4194879a53e5559e094aa7b1a\",\n                            \"lessThan\": \"9a7b7248798123efbd5fafe58461d57c7cc718af\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c018ad3de61a1dc4194879a53e5559e094aa7b1a\",\n                            \"lessThan\": \"7141990add3f75436f2933cb310654cad3b1e3e9\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"net/batman-adv/routing.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"3.13\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"3.13\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.261\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.212\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.178\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.145\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.97\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.40\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1.5\",\n                            \"lessThanOrEqual\": \"7.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8,"severity":"CRITICAL"}],"references":["https://git.kernel.org/stable/c/aa9558af859934f24717d4bab97d61004f91a736","https://git.kernel.org/stable/c/9c2c05629e46c1fd43931506d41c56a885a98eb4","https://git.kernel.org/stable/c/7b162b36de750565404cd3b98315706622c6974f","https://git.kernel.org/stable/c/ed90eb5c68420cdfe67ec1f773324198d2ef6f50","https://git.kernel.org/stable/c/979175834a699ccc3c4c0b0ba60ecae0f135a587","https://git.kernel.org/stable/c/b8afcf799b2cc92c41beebd029e53ed18960184a","https://git.kernel.org/stable/c/9a7b7248798123efbd5fafe58461d57c7cc718af","https://git.kernel.org/stable/c/7141990add3f75436f2933cb310654cad3b1e3e9"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-72234","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-72234","identifiers":["CVE-2026-72234"]},"retained":false,"historicalAffected":[]}],"coverage":[]}