CVE-2026-53258

wifi: fix leak if split 6 GHz scanning fails

State: Published
Severity: Not scored
Published: Jun 25, 2026
Updated: Oct 30, 2026
Reserved: Jun 9, 2026

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).

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	c8cb5b854b40f2ce52ccd032fa19750f4181d5fc to before c3d30daf03130cf35c0e70185719ce16fc3ea6c4Affected c8cb5b854b40f2ce52ccd032fa19750f4181d5fc to before 87484866cae9130b97c2b356eeaea4f47b292f75Affected c8cb5b854b40f2ce52ccd032fa19750f4181d5fc to before df44397bbd8f3a38115c9590b686787e4aaf6327Affected c8cb5b854b40f2ce52ccd032fa19750f4181d5fc to before fb8db813eba2e56ee001c9fb5c2ce2cb78c42642Affected c8cb5b854b40f2ce52ccd032fa19750f4181d5fc to before a24134ddc18b4d440714365637d440b7121447b9Affected c8cb5b854b40f2ce52ccd032fa19750f4181d5fc to before e8694f7cc29287e843648d1075177b9a2000d957Affected
LinuxLinux	5.10Affected before 5.10Not affected 6.1.191 through 6.1.Not affected 6.6.160 through 6.6.Not affected 6.12.114 through 6.12.Not affected 6.18.36 through 6.18.Not affected 7.0.13 through 7.0.*Not affected 7.1 and laterNot affected

Product

Versions

LinuxLinux

c8cb5b854b40f2ce52ccd032fa19750f4181d5fc to before c3d30daf03130cf35c0e70185719ce16fc3ea6c4Affected
c8cb5b854b40f2ce52ccd032fa19750f4181d5fc to before 87484866cae9130b97c2b356eeaea4f47b292f75Affected
c8cb5b854b40f2ce52ccd032fa19750f4181d5fc to before df44397bbd8f3a38115c9590b686787e4aaf6327Affected
c8cb5b854b40f2ce52ccd032fa19750f4181d5fc to before fb8db813eba2e56ee001c9fb5c2ce2cb78c42642Affected
c8cb5b854b40f2ce52ccd032fa19750f4181d5fc to before a24134ddc18b4d440714365637d440b7121447b9Affected
c8cb5b854b40f2ce52ccd032fa19750f4181d5fc to before e8694f7cc29287e843648d1075177b9a2000d957Affected

LinuxLinux

5.10Affected
before 5.10Not affected
6.1.191 through 6.1.*Not affected
6.6.160 through 6.6.*Not affected
6.12.114 through 6.12.*Not affected
6.18.36 through 6.18.*Not affected
7.0.13 through 7.0.*Not affected
7.1 and laterNot affected

References

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