{"id":"CVE-2025-38013","state":"PUBLISHED","title":"wifi: mac80211: Set n_channels after allocating struct cfg80211_scan_request","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: Set n_channels after allocating struct cfg80211_scan_request\n\nMake sure that n_channels is set after allocating the\nstruct cfg80211_registered_device::int_scan_req member. Seen with\nsyzkaller:\n\nUBSAN: array-index-out-of-bounds in net/mac80211/scan.c:1208:5\nindex 0 is out of range for type 'struct ieee80211_channel *[] __counted_by(n_channels)' (aka 'struct ieee80211_channel *[]')\n\nThis was missed in the initial conversions because I failed to locate\nthe allocation likely due to the \"sizeof(void *)\" not matching the\n\"channels\" array type.","publishedAt":"2025-06-18T09:28:22.672Z","updatedAt":"2026-05-11T21:19:37.553Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e3eac9f32ec04112b39e01b574ac739382469bf9","status":"affected","lessThan":"fde33ab3c052a302ee8a0b739094b88ceae4dd67","versionType":"git"},{"version":"e3eac9f32ec04112b39e01b574ac739382469bf9","status":"affected","lessThan":"07c737d9ab02c07b562aefcca16aa95077368e24","versionType":"git"},{"version":"e3eac9f32ec04112b39e01b574ac739382469bf9","status":"affected","lessThan":"e3192e999a0d05ea0ba2c59c09afaf0b8ee70b81","versionType":"git"},{"version":"e3eac9f32ec04112b39e01b574ac739382469bf9","status":"affected","lessThan":"82bbe02b2500ef0a62053fe2eb84773fe31c5a0a","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/mac80211/main.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.6","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.6","versionType":"semver"},{"version":"6.6.92","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.30","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.14.8","status":"unaffected","lessThanOrEqual":"6.14.*","versionType":"semver"},{"version":"6.15","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/mac80211/main.c"]}],"references":["https://git.kernel.org/stable/c/fde33ab3c052a302ee8a0b739094b88ceae4dd67","https://git.kernel.org/stable/c/07c737d9ab02c07b562aefcca16aa95077368e24","https://git.kernel.org/stable/c/e3192e999a0d05ea0ba2c59c09afaf0b8ee70b81","https://git.kernel.org/stable/c/82bbe02b2500ef0a62053fe2eb84773fe31c5a0a"],"weaknesses":[],"ingestedAt":"2026-10-29T20:09:09.358Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/38xxx/CVE-2025-38013.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-38013","state":"PUBLISHED","datePublished":"2025-06-18T09:28:22.672Z","dateUpdated":"2026-05-11T21:19:37.553Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-04-16T04:51:23.977Z"},"containers":{"cna":{"title":"wifi: mac80211: Set n_channels after allocating struct cfg80211_scan_request","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: Set n_channels after allocating struct cfg80211_scan_request\n\nMake sure that n_channels is set after allocating the\nstruct cfg80211_registered_device::int_scan_req member. Seen with\nsyzkaller:\n\nUBSAN: array-index-out-of-bounds in net/mac80211/scan.c:1208:5\nindex 0 is out of range for type 'struct ieee80211_channel *[] __counted_by(n_channels)' (aka 'struct ieee80211_channel *[]')\n\nThis was missed in the initial conversions because I failed to locate\nthe allocation likely due to the \"sizeof(void *)\" not matching the\n\"channels\" array type."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e3eac9f32ec04112b39e01b574ac739382469bf9","status":"affected","lessThan":"fde33ab3c052a302ee8a0b739094b88ceae4dd67","versionType":"git"},{"version":"e3eac9f32ec04112b39e01b574ac739382469bf9","status":"affected","lessThan":"07c737d9ab02c07b562aefcca16aa95077368e24","versionType":"git"},{"version":"e3eac9f32ec04112b39e01b574ac739382469bf9","status":"affected","lessThan":"e3192e999a0d05ea0ba2c59c09afaf0b8ee70b81","versionType":"git"},{"version":"e3eac9f32ec04112b39e01b574ac739382469bf9","status":"affected","lessThan":"82bbe02b2500ef0a62053fe2eb84773fe31c5a0a","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/mac80211/main.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.6","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.6","versionType":"semver"},{"version":"6.6.92","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.30","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.14.8","status":"unaffected","lessThanOrEqual":"6.14.*","versionType":"semver"},{"version":"6.15","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/mac80211/main.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/fde33ab3c052a302ee8a0b739094b88ceae4dd67"},{"url":"https://git.kernel.org/stable/c/07c737d9ab02c07b562aefcca16aa95077368e24"},{"url":"https://git.kernel.org/stable/c/e3192e999a0d05ea0ba2c59c09afaf0b8ee70b81"},{"url":"https://git.kernel.org/stable/c/82bbe02b2500ef0a62053fe2eb84773fe31c5a0a"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T21:19:37.553Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"6.6.92"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"6.12.30"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"6.14.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"6.15"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}