{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-72230", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-09T03:40:39.913Z", "datePublished": "2026-08-15T05:54:21.256Z", "dateUpdated": "2026-08-17T05:10:46.396Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-17T05:10:46.396Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: frag: free unfragmentable packet\n\nThe caller of batadv_frag_send_packet() assume that the skb provided to the\nfunction are always consumed. But the pre-check for an empty payload or the\nzero fragment size returned an error without any further actions.\n\nA failed pre-check must use the same error handling code as the rest of the\nfunction."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/batman-adv/fragmentation.c"], "versions": [{"version": "ee75ed88879af88558818a5c6609d85f60ff0df4", "lessThan": "a5155aeeae8ead3c6081f7f197608033e4dcfe75", "status": "affected", "versionType": "git"}, {"version": "ee75ed88879af88558818a5c6609d85f60ff0df4", "lessThan": "04ccbed8179e7d4d0906d00939300ddc5b48ce7e", "status": "affected", "versionType": "git"}, {"version": "ee75ed88879af88558818a5c6609d85f60ff0df4", "lessThan": "601dff01a03ecced59938cdd69eeb2c66e4158f2", "status": "affected", "versionType": "git"}, {"version": "ee75ed88879af88558818a5c6609d85f60ff0df4", "lessThan": "740542f11bf8c86411c429fbd7f84fc6bee80e76", "status": "affected", "versionType": "git"}, {"version": "ee75ed88879af88558818a5c6609d85f60ff0df4", "lessThan": "59e1da1ab354d1f2b7bab8d44f846262f990ad9d", "status": "affected", "versionType": "git"}, {"version": "ee75ed88879af88558818a5c6609d85f60ff0df4", "lessThan": "8f54162e07d3eea1e4ff21464cf2a815d79b6510", "status": "affected", "versionType": "git"}, {"version": "ee75ed88879af88558818a5c6609d85f60ff0df4", "lessThan": "08047838817561cef33ada9774a2a4663d499ecb", "status": "affected", "versionType": "git"}, {"version": "ee75ed88879af88558818a5c6609d85f60ff0df4", "lessThan": "6b628425aed49a1c7a4ffc997583840fc582d32b", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/batman-adv/fragmentation.c"], "versions": [{"version": "3.13", "status": "affected"}, {"version": "0", "lessThan": "3.13", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.261", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.212", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.178", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.145", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.97", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.40", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.5", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.13", "versionEndExcluding": "5.10.261"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.13", "versionEndExcluding": "5.15.212"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.13", "versionEndExcluding": "6.1.178"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.13", "versionEndExcluding": "6.6.145"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.13", "versionEndExcluding": "6.12.97"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.13", "versionEndExcluding": "6.18.40"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.13", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.13", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/a5155aeeae8ead3c6081f7f197608033e4dcfe75"}, {"url": "https://git.kernel.org/stable/c/04ccbed8179e7d4d0906d00939300ddc5b48ce7e"}, {"url": "https://git.kernel.org/stable/c/601dff01a03ecced59938cdd69eeb2c66e4158f2"}, {"url": "https://git.kernel.org/stable/c/740542f11bf8c86411c429fbd7f84fc6bee80e76"}, {"url": "https://git.kernel.org/stable/c/59e1da1ab354d1f2b7bab8d44f846262f990ad9d"}, {"url": "https://git.kernel.org/stable/c/8f54162e07d3eea1e4ff21464cf2a815d79b6510"}, {"url": "https://git.kernel.org/stable/c/08047838817561cef33ada9774a2a4663d499ecb"}, {"url": "https://git.kernel.org/stable/c/6b628425aed49a1c7a4ffc997583840fc582d32b"}], "title": "batman-adv: frag: free unfragmentable packet", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"bugzilla": {"description": "kernel: batman-adv: frag: free unfragmentable packet", "id": "2516537", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516537"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-459", "details": ["A flaw was found in the `batman-adv` (Better Approach To Mobile Ad-hoc Networking - Advanced) fragmentation module of the Linux kernel. The `batadv_frag_send_packet()` function, responsible for sending fragmented packets, does not properly free allocated memory when a packet is deemed unfragmentable due to an empty payload or zero fragment size. This oversight can lead to a memory leak, potentially affecting system stability and performance."], "name": "CVE-2026-72230", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-08-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-72230\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-72230\nhttps://lore.kernel.org/linux-cve-announce/2026081549-CVE-2026-72230-a67b@gregkh/T"], "threat_severity": "Moderate"}

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