{"id":"CVE-2026-72233","title":"batman-adv: bla: reacquire gw address after skb realloc","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: bla: reacquire gw address after skb realloc\n\nThe pskb_may_pull() called by batadv_bla_is_backbone_gw() could reallocate\nthe buffer behind the skb. Variables…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cvssSource":"cna","vendor":"Linux","product":"Linux","affected":["Linux >= 9e794b6bf4a2c65d698d7433ddfabc54a5d53a88 < 41819c5467b6eb8ab4567f0ac98702ce9b6abbb1","Linux >= 9e794b6bf4a2c65d698d7433ddfabc54a5d53a88 < a9ab19fbca86b32e9a9ae9e1a63e70a7eab3400f","Linux >= 9e794b6bf4a2c65d698d7433ddfabc54a5d53a88 < 4a6673c55752a7aa41e28f51660eb981504ca088","Linux >= 9e794b6bf4a2c65d698d7433ddfabc54a5d53a88 < ab2bac47a02637df1128a151e81d3ec14767f4bb","Linux >= 9e794b6bf4a2c65d698d7433ddfabc54a5d53a88 < dc16bbf53cede1baf564bf0c8a861114b64e18b3","Linux >= 9e794b6bf4a2c65d698d7433ddfabc54a5d53a88 < e5e18886aadd3870e2d84e32a9678317fab1dd9e","Linux >= 9e794b6bf4a2c65d698d7433ddfabc54a5d53a88 < f4fb97ecf677cd9c3aa4f3bfc6fbf5b0e4bdbbbf","Linux >= 9e794b6bf4a2c65d698d7433ddfabc54a5d53a88 < cdf3b5af2bc4431e58629e8ad2086b1e9185c761","Linux 4.12"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-16T18:44:31.631012Z"},"published":"2026-08-15","updated":"2026-10-16","sourceUpdated":"2026-10-16T18:45:03.576Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-72233","references":[{"url":"https://git.kernel.org/stable/c/41819c5467b6eb8ab4567f0ac98702ce9b6abbb1"},{"url":"https://git.kernel.org/stable/c/a9ab19fbca86b32e9a9ae9e1a63e70a7eab3400f"},{"url":"https://git.kernel.org/stable/c/4a6673c55752a7aa41e28f51660eb981504ca088"},{"url":"https://git.kernel.org/stable/c/ab2bac47a02637df1128a151e81d3ec14767f4bb"},{"url":"https://git.kernel.org/stable/c/dc16bbf53cede1baf564bf0c8a861114b64e18b3"},{"url":"https://git.kernel.org/stable/c/e5e18886aadd3870e2d84e32a9678317fab1dd9e"},{"url":"https://git.kernel.org/stable/c/f4fb97ecf677cd9c3aa4f3bfc6fbf5b0e4bdbbbf"},{"url":"https://git.kernel.org/stable/c/cdf3b5af2bc4431e58629e8ad2086b1e9185c761"}],"tags":["cve.org"],"epss":0.00344,"epssPercentile":0.26352,"ingestedAt":"2026-10-16T19:46:24.419Z","slug":"CVE-2026-72233","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: bla: reacquire gw address after skb realloc\n\nThe pskb_may_pull() called by batadv_bla_is_backbone_gw() could reallocate\nthe buffer behind the skb. Variables which were pointing to the old buffer\nneed to be reassigned to avoid an use-after-free.\n\n## Affected\n\n- `Linux >= 9e794b6bf4a2c65d698d7433ddfabc54a5d53a88 < 41819c5467b6eb8ab4567f0ac98702ce9b6abbb1`\n- `Linux >= 9e794b6bf4a2c65d698d7433ddfabc54a5d53a88 < a9ab19fbca86b32e9a9ae9e1a63e70a7eab3400f`\n- `Linux >= 9e794b6bf4a2c65d698d7433ddfabc54a5d53a88 < 4a6673c55752a7aa41e28f51660eb981504ca088`\n- `Linux >= 9e794b6bf4a2c65d698d7433ddfabc54a5d53a88 < ab2bac47a02637df1128a151e81d3ec14767f4bb`\n- `Linux >= 9e794b6bf4a2c65d698d7433ddfabc54a5d53a88 < dc16bbf53cede1baf564bf0c8a861114b64e18b3`\n- `Linux >= 9e794b6bf4a2c65d698d7433ddfabc54a5d53a88 < e5e18886aadd3870e2d84e32a9678317fab1dd9e`\n- `Linux >= 9e794b6bf4a2c65d698d7433ddfabc54a5d53a88 < f4fb97ecf677cd9c3aa4f3bfc6fbf5b0e4bdbbbf`\n- `Linux >= 9e794b6bf4a2c65d698d7433ddfabc54a5d53a88 < cdf3b5af2bc4431e58629e8ad2086b1e9185c761`\n- `Linux 4.12`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}