{"id":"CVE-2026-53258","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-53258","generatedAt":"2026-10-28T03:23:24.907Z","title":"In the Linux kernel, the following vulnerability has been resolved: wifi: fix leak if split 6 GHz scanning fails rdev->int_scan_req is leaked if cfg80211_scan() fails.","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: fix leak if split 6 GHz scanning fails\n\nrdev->int_scan_req is leaked if cfg80211_scan() fails.  Note that it's\nsupposed to be released at ___cfg80211_scan_done() but this doesn't happen\nas rdev->scan_req is NULL at that point, too, leading to the early return\nfrom the freeing function.\n\nunreferenced object 0xffff8881161d0800 (size 512):\n  comm \"wpa_supplicant\", pid 379, jiffies 4294749765\n  hex dump (first 32 bytes):\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n    00 00 00 00 00 00 00 00 f0 81 13 16 81 88 ff ff  ................\n  backtrace (crc c867fdb6):\n    kmemleak_alloc+0x89/0x90\n    __kmalloc_noprof+0x2fd/0x410\n    cfg80211_scan+0x133/0x730\n    nl80211_trigger_scan+0xc69/0x1cc0\n    genl_family_rcv_msg_doit+0x204/0x2f0\n    genl_rcv_msg+0x431/0x6b0\n    netlink_rcv_skb+0x143/0x3f0\n    genl_rcv+0x27/0x40\n    netlink_unicast+0x4f6/0x820\n    netlink_sendmsg+0x797/0xce0\n    __sock_sendmsg+0xc4/0x160\n    ____sys_sendmsg+0x5e4/0x890\n    ___sys_sendmsg+0xf8/0x180\n    __sys_sendmsg+0x136/0x1e0\n    __x64_sys_sendmsg+0x76/0xc0\n    x64_sys_call+0x13f0/0x17d0\n\nFound by Linux Verification Center (linuxtesting.org).","published":"2026-06-25T09:16:44.000Z","lastModified":"2026-10-21T13:19:13.000Z","status":"Modified","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","cvss":{"version":"3.1","score":5.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-401"],"affected":["linux/linux kernel"],"epss":{"score":0.00162,"percentile":0.0531,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.16%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://git.kernel.org/stable/c/87484866cae9130b97c2b356eeaea4f47b292f75","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a24134ddc18b4d440714365637d440b7121447b9","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/df44397bbd8f3a38115c9590b686787e4aaf6327","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e8694f7cc29287e843648d1075177b9a2000d957","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/fb8db813eba2e56ee001c9fb5c2ce2cb78c42642","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-53258","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}