{"api_version":"1","generated_at":"2026-07-24T20:02:22+00:00","cve":"CVE-2026-52922","urls":{"html":"https://cve.report/CVE-2026-52922","api":"https://cve.report/api/cve/CVE-2026-52922.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-52922","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-52922"},"summary":{"title":"batman-adv: dat: handle forward allocation error","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: dat: handle forward allocation error\n\nbatadv_dat_forward_data() calls pskb_copy_for_clone() to duplicate an skb\nfor each DHT candidate, but does not check the return value before passing\nit to batadv_send_skb_prepare_unicast_4addr(). That function dereferences\nthe skb unconditionally, so a failed allocation triggers a NULL pointer\ndereference.\n\nSkip forwarding to the current DHT candidate on allocation failure.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-06-24 08:16:22","updated_at":"2026-07-08 17:50:16"},"problem_types":["CWE-476"],"metrics":[{"version":"3.1","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","score":"7.5","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"7.5","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","data":{"baseScore":7.5,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"references":[{"url":"https://git.kernel.org/stable/c/866ac1d57040ed0b44ca732e3c66b3aa6b93011c","name":"https://git.kernel.org/stable/c/866ac1d57040ed0b44ca732e3c66b3aa6b93011c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2d8826a2d3657cea66fb0370f9e521575a673871","name":"https://git.kernel.org/stable/c/2d8826a2d3657cea66fb0370f9e521575a673871","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2edb8aeb3cdda9d00ec4997252dc5bcd6f54d8ef","name":"https://git.kernel.org/stable/c/2edb8aeb3cdda9d00ec4997252dc5bcd6f54d8ef","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/9bcebaedfb8479cb4affb23c7a0d000ca9a20e73","name":"https://git.kernel.org/stable/c/9bcebaedfb8479cb4affb23c7a0d000ca9a20e73","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/9cceea8eeba710def2a5707ee00f00c74a9a1cac","name":"https://git.kernel.org/stable/c/9cceea8eeba710def2a5707ee00f00c74a9a1cac","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/cf48e75fc4fe0d5cc7721c82d454221d01367b93","name":"https://git.kernel.org/stable/c/cf48e75fc4fe0d5cc7721c82d454221d01367b93","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ce0c381199402a2c58f4599f4f6ed100d872d0da","name":"https://git.kernel.org/stable/c/ce0c381199402a2c58f4599f4f6ed100d872d0da","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4d420d9ee70a220a2cd95aa0dd2e15acad66a505","name":"https://git.kernel.org/stable/c/4d420d9ee70a220a2cd95aa0dd2e15acad66a505","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-52922","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-52922","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 785ea1144182c341b8b85b0f8180291839d176a8 9bcebaedfb8479cb4affb23c7a0d000ca9a20e73 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 785ea1144182c341b8b85b0f8180291839d176a8 2edb8aeb3cdda9d00ec4997252dc5bcd6f54d8ef git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 785ea1144182c341b8b85b0f8180291839d176a8 ce0c381199402a2c58f4599f4f6ed100d872d0da git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 785ea1144182c341b8b85b0f8180291839d176a8 866ac1d57040ed0b44ca732e3c66b3aa6b93011c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 785ea1144182c341b8b85b0f8180291839d176a8 4d420d9ee70a220a2cd95aa0dd2e15acad66a505 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 785ea1144182c341b8b85b0f8180291839d176a8 9cceea8eeba710def2a5707ee00f00c74a9a1cac git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 785ea1144182c341b8b85b0f8180291839d176a8 cf48e75fc4fe0d5cc7721c82d454221d01367b93 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 785ea1144182c341b8b85b0f8180291839d176a8 2d8826a2d3657cea66fb0370f9e521575a673871 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3.8","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 3.8 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.10.258 5.10.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.209 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.175 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.142 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.92 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.34 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.11 7.0.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2026","cve_id":"52922","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"linux","cpe5":"linux_kernel","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"52922","cve":"CVE-2026-52922","epss":"0.003940000","percentile":"0.314220000","score_date":"2026-07-09","updated_at":"2026-07-10 00:08:29"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/batman-adv/distributed-arp-table.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"9bcebaedfb8479cb4affb23c7a0d000ca9a20e73","status":"affected","version":"785ea1144182c341b8b85b0f8180291839d176a8","versionType":"git"},{"lessThan":"2edb8aeb3cdda9d00ec4997252dc5bcd6f54d8ef","status":"affected","version":"785ea1144182c341b8b85b0f8180291839d176a8","versionType":"git"},{"lessThan":"ce0c381199402a2c58f4599f4f6ed100d872d0da","status":"affected","version":"785ea1144182c341b8b85b0f8180291839d176a8","versionType":"git"},{"lessThan":"866ac1d57040ed0b44ca732e3c66b3aa6b93011c","status":"affected","version":"785ea1144182c341b8b85b0f8180291839d176a8","versionType":"git"},{"lessThan":"4d420d9ee70a220a2cd95aa0dd2e15acad66a505","status":"affected","version":"785ea1144182c341b8b85b0f8180291839d176a8","versionType":"git"},{"lessThan":"9cceea8eeba710def2a5707ee00f00c74a9a1cac","status":"affected","version":"785ea1144182c341b8b85b0f8180291839d176a8","versionType":"git"},{"lessThan":"cf48e75fc4fe0d5cc7721c82d454221d01367b93","status":"affected","version":"785ea1144182c341b8b85b0f8180291839d176a8","versionType":"git"},{"lessThan":"2d8826a2d3657cea66fb0370f9e521575a673871","status":"affected","version":"785ea1144182c341b8b85b0f8180291839d176a8","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["net/batman-adv/distributed-arp-table.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.8"},{"lessThan":"3.8","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.258","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.209","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.142","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.92","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.34","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.11","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.258","versionStartIncluding":"3.8","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.209","versionStartIncluding":"3.8","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.175","versionStartIncluding":"3.8","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.142","versionStartIncluding":"3.8","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.92","versionStartIncluding":"3.8","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.34","versionStartIncluding":"3.8","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.11","versionStartIncluding":"3.8","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1","versionStartIncluding":"3.8","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: dat: handle forward allocation error\n\nbatadv_dat_forward_data() calls pskb_copy_for_clone() to duplicate an skb\nfor each DHT candidate, but does not check the return value before passing\nit to batadv_send_skb_prepare_unicast_4addr(). That function dereferences\nthe skb unconditionally, so a failed allocation triggers a NULL pointer\ndereference.\n\nSkip forwarding to the current DHT candidate on allocation failure."}],"metrics":[{"cvssV3_1":{"baseScore":7.5,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"providerMetadata":{"dateUpdated":"2026-06-28T06:36:43.785Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/9bcebaedfb8479cb4affb23c7a0d000ca9a20e73"},{"url":"https://git.kernel.org/stable/c/2edb8aeb3cdda9d00ec4997252dc5bcd6f54d8ef"},{"url":"https://git.kernel.org/stable/c/ce0c381199402a2c58f4599f4f6ed100d872d0da"},{"url":"https://git.kernel.org/stable/c/866ac1d57040ed0b44ca732e3c66b3aa6b93011c"},{"url":"https://git.kernel.org/stable/c/4d420d9ee70a220a2cd95aa0dd2e15acad66a505"},{"url":"https://git.kernel.org/stable/c/9cceea8eeba710def2a5707ee00f00c74a9a1cac"},{"url":"https://git.kernel.org/stable/c/cf48e75fc4fe0d5cc7721c82d454221d01367b93"},{"url":"https://git.kernel.org/stable/c/2d8826a2d3657cea66fb0370f9e521575a673871"}],"title":"batman-adv: dat: handle forward allocation error","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-52922","datePublished":"2026-06-24T07:14:17.185Z","dateReserved":"2026-06-09T07:44:35.367Z","dateUpdated":"2026-06-28T06:36:43.785Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-06-24 08:16:22","lastModifiedDate":"2026-07-08 17:50:16","problem_types":["CWE-476"],"metrics":{"cvssMetricV31":[{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.8","versionEndExcluding":"5.10.258","matchCriteriaId":"1215BB7C-68EA-4A1C-94B1-1D8FABDF881E"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.15.209","matchCriteriaId":"919C10A9-7951-4A74-BADD-C135A0A8D8B4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.1.175","matchCriteriaId":"92385813-D91D-480D-83A1-F423D2CBB2BA"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.6.142","matchCriteriaId":"FBFF77B0-526A-4AF1-84D0-ED7187624A67"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"6.12.92","matchCriteriaId":"9CB90BD9-95B7-4D7F-9F17-4ECE6CFB66C9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.13","versionEndExcluding":"6.18.34","matchCriteriaId":"A4B1EF6D-18D7-4838-BC37-7499D5DCC3C0"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19","versionEndExcluding":"7.0.11","matchCriteriaId":"0520D091-FC52-4A50-AF07-70AE7D08B750"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*","matchCriteriaId":"B1EF7059-E670-45F4-B422-54C40FA86390"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*","matchCriteriaId":"0D38F0BF-A728-4133-A358-D44A2F7EE6D6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:*","matchCriteriaId":"EC732D08-5F7B-46D9-B154-E60C7F4F0A97"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:*","matchCriteriaId":"E5910A9D-F60A-409A-B486-FE66BFEBA9B9"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"52922","Ordinal":"1","Title":"batman-adv: dat: handle forward allocation error","CVE":"CVE-2026-52922","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"52922","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: dat: handle forward allocation error\n\nbatadv_dat_forward_data() calls pskb_copy_for_clone() to duplicate an skb\nfor each DHT candidate, but does not check the return value before passing\nit to batadv_send_skb_prepare_unicast_4addr(). That function dereferences\nthe skb unconditionally, so a failed allocation triggers a NULL pointer\ndereference.\n\nSkip forwarding to the current DHT candidate on allocation failure.","Type":"Description","Title":"batman-adv: dat: handle forward allocation error"}]}}}