CVE-2026-53258
Estado: AnalizadaMedia (5.5)—
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.
Found by Linux Verification Center (linuxtesting.org).
Detalles técnicos trazas, registros y código del informe original
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+0x13f0/0x17d0CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 5.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.11%
- Percentil entre todas las CVEs puntuadas: 1
- Fecha de la puntuación: 2/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
CWE
- CWE-401
Referencias
JSON original (NVD)
Mostrar
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"value": "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)."
}
],
"lastModified": "2026-07-08T16:40:07.403",
"configurations": [
{
"nodes": [
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