{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-52922","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-06-09T07:44:35.367Z","datePublished":"2026-06-24T07:14:17.185Z","dateUpdated":"2026-06-28T06:36:43.785Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-06-28T06:36:43.785Z"},"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":{"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"}}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/batman-adv/distributed-arp-table.c"],"versions":[{"version":"785ea1144182c341b8b85b0f8180291839d176a8","lessThan":"9bcebaedfb8479cb4affb23c7a0d000ca9a20e73","status":"affected","versionType":"git"},{"version":"785ea1144182c341b8b85b0f8180291839d176a8","lessThan":"2edb8aeb3cdda9d00ec4997252dc5bcd6f54d8ef","status":"affected","versionType":"git"},{"version":"785ea1144182c341b8b85b0f8180291839d176a8","lessThan":"ce0c381199402a2c58f4599f4f6ed100d872d0da","status":"affected","versionType":"git"},{"version":"785ea1144182c341b8b85b0f8180291839d176a8","lessThan":"866ac1d57040ed0b44ca732e3c66b3aa6b93011c","status":"affected","versionType":"git"},{"version":"785ea1144182c341b8b85b0f8180291839d176a8","lessThan":"4d420d9ee70a220a2cd95aa0dd2e15acad66a505","status":"affected","versionType":"git"},{"version":"785ea1144182c341b8b85b0f8180291839d176a8","lessThan":"9cceea8eeba710def2a5707ee00f00c74a9a1cac","status":"affected","versionType":"git"},{"version":"785ea1144182c341b8b85b0f8180291839d176a8","lessThan":"cf48e75fc4fe0d5cc7721c82d454221d01367b93","status":"affected","versionType":"git"},{"version":"785ea1144182c341b8b85b0f8180291839d176a8","lessThan":"2d8826a2d3657cea66fb0370f9e521575a673871","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/distributed-arp-table.c"],"versions":[{"version":"3.8","status":"affected"},{"version":"0","lessThan":"3.8","status":"unaffected","versionType":"semver"},{"version":"5.10.258","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.209","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.175","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.142","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.92","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.34","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.0.11","lessThanOrEqual":"7.0.*","status":"unaffected","versionType":"semver"},{"version":"7.1","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":"3.8","versionEndExcluding":"5.10.258"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.8","versionEndExcluding":"5.15.209"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.8","versionEndExcluding":"6.1.175"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.8","versionEndExcluding":"6.6.142"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.8","versionEndExcluding":"6.12.92"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.8","versionEndExcluding":"6.18.34"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.8","versionEndExcluding":"7.0.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.8","versionEndExcluding":"7.1"}]}]}],"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"}}}}