{"id":"CVE-2025-38013","summary":"wifi: mac80211: Set n_channels after allocating struct cfg80211_scan_request","details":"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.","modified":"2026-03-20T12:42:37.683717Z","published":"2025-06-18T09:28:22.672Z","related":["SUSE-SU-2025:02249-1","SUSE-SU-2025:02254-1","SUSE-SU-2025:02307-1","SUSE-SU-2025:02333-1","SUSE-SU-2025:02335-1","SUSE-SU-2025:02538-1","SUSE-SU-2025:02923-1","SUSE-SU-2025:20475-1","SUSE-SU-2025:20483-1","SUSE-SU-2025:20493-1","SUSE-SU-2025:20498-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38013.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/07c737d9ab02c07b562aefcca16aa95077368e24"},{"type":"WEB","url":"https://git.kernel.org/stable/c/82bbe02b2500ef0a62053fe2eb84773fe31c5a0a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e3192e999a0d05ea0ba2c59c09afaf0b8ee70b81"},{"type":"WEB","url":"https://git.kernel.org/stable/c/fde33ab3c052a302ee8a0b739094b88ceae4dd67"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38013.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-38013"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"e3eac9f32ec04112b39e01b574ac739382469bf9"},{"fixed":"fde33ab3c052a302ee8a0b739094b88ceae4dd67"},{"fixed":"07c737d9ab02c07b562aefcca16aa95077368e24"},{"fixed":"e3192e999a0d05ea0ba2c59c09afaf0b8ee70b81"},{"fixed":"82bbe02b2500ef0a62053fe2eb84773fe31c5a0a"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-38013.json"}}],"schema_version":"1.7.5"}