Medium · CVSS 5.5CVE-2026-53258

wifi: fix leak if split 6 GHz scanning failsCVE-2026-53258

Answer in brief

CVE-2026-53258 records a Medium severity (CVSS 5.5) vulnerability in wifi: fix leak if split 6 GHz scanning fails. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Jun 25, 2026Updated Oct 21, 2026Source checked Oct 21, 2026First seen by HOL Jun 25, 2026Material review Oct 21, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 5.5
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

CVSS is 5.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=c8cb5b854b40f2ce52ccd032fa19750f4181d5fc <87484866cae9130b97c2b356eeaea4f47b292f75 \|\| >=c8cb5b854b40f2ce52ccd032fa19750f4181d5fc <df44397bbd8f3a38115c9590b686787e4aaf6327 \|\| >=c8cb5b854b40f2ce52ccd032fa19750f4181d5fc <fb8db813eba2e56ee001c9fb5c2ce2cb78c42642 \|\| >=c8cb5b854b40f2ce52ccd032fa19750f4181d5fc <a24134ddc18b4d440714365637d440b7121447b9 \|\| >=c8cb5b854b40f2ce52ccd032fa19750f4181d5fc <e8694f7cc29287e843648d1075177b9a2000d957	87484866cae9130b97c2b356eeaea4f47b292f75, df44397bbd8f3a38115c9590b686787e4aaf6327, fb8db813eba2e56ee001c9fb5c2ce2cb78c42642, a24134ddc18b4d440714365637d440b7121447b9, e8694f7cc29287e843648d1075177b9a2000d957
Linux/Linuxgeneric	5.10	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 87484866cae9130b97c2b356eeaea4f47b292f75 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Jun 25, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Oct 21, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Jun 25, 2026

Sources and claim methodology

Upstream source description

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. Note that it's supposed to be released at ___cfg80211_scan_done() but this doesn't happen as rdev->scan_req is NULL at that point, too, leading to the early return from the freeing function. unreferenced object 0xffff8881161d0800 (size 512): comm "wpa_supplicant", pid 379, jiffies 4294749765 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 f0 81 13 16 81 88 ff ff ................ backtrace (crc c867fdb6): kmemleak_alloc+0x89/0x90 __kmalloc_noprof+0x2fd/0x410 cfg80211_scan+0x133/0x730 nl80211_trigger_scan+0xc69/0x1cc0 genl_family_rcv_msg_doit+0x204/0x2f0 genl_rcv_msg+0x431/0x6b0 netlink_rcv_skb+0x143/0x3f0 genl_rcv+0x27/0x40 netlink_unicast+0x4f6/0x820 netlink_sendmsg+0x797/0xce0 __sock_sendmsg+0xc4/0x160 ____sys_sendmsg+0x5e4/0x890 ___sys_sendmsg+0xf8/0x180 __sys_sendmsg+0x136/0x1e0 __x64_sys_sendmsg+0x76/0xc0 x64_sys_call+0x13f0/0x17d0 Found by Linux Verification Center (linuxtesting.org).

Quoted source text, attributed separately from HOL analysis.