CVE-2026-98334
Estado: RecibidaSin puntuar—
In the Linux kernel, the following vulnerability has been resolved:
wifi: mac80211: reset state when starting AP fails
ieee80211_start_ap() can set enable_beacon (and beacon_int) and fail later, leaving it set forever. Scanning can then attempt to restore beaconing on such an interface, leading to:
in hwsim. Also, cfg80211 then allows changing the interface type, and the off-channel path getgs confused about beaconing as well, leading to another warning:
Reset the state on failures to always have it correct.
Detalles técnicos trazas, registros y código del informe original
Oops: divide error: 0000 [#1] SMP KASAN NOPTI RIP: 0010:mac80211_hwsim_link_info_changed+0xca7/0xf00 Call Trace: drv_link_info_changed+0x413/0x860 net/mac80211/driver-ops.c:495 ieee80211_link_info_change_notify+0x24b/0x3c0 net/mac80211/main.c:427 ieee80211_offchannel_return+0x381/0x580 net/mac80211/offchannel.c:160 __ieee80211_scan_completed+0x993/0xe30 net/mac80211/scan.c:519 ieee80211_scan_work+0x472/0x2010 net/mac80211/scan.c:1193 cfg80211_wiphy_work+0x2b7/0x550 net/wireless/core.c:538 WARNING: net/mac80211/driver-ops.c:468 at drv_link_info_changed+0x583/0x880 ieee80211_link_info_change_notify+0x24b/0x3c0 net/mac80211/main.c:427 ieee80211_offchannel_stop_vifs+0x328/0x5c0 net/mac80211/offchannel.c:122 ieee80211_start_sw_scan net/mac80211/scan.c:583 [inline] __ieee80211_start_scan+0xfb6/0x1af0 net/mac80211/scan.c:882
CVSS
NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.18%
- Percentil entre todas las CVEs puntuadas: 6
- Fecha de la puntuación: 6/10/2026
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)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-98334",
"cveTags": [],
"metrics": {},
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "d6a83228823fc0cc8d79d95c9f0bf568b7317862",
"lessThan": "d83da43e9b3b3b1bad99ac5a1065f1c63ad5fc32",
"versionType": "git"
},
{
"status": "affected",
"version": "d6a83228823fc0cc8d79d95c9f0bf568b7317862",
"lessThan": "5d5ff5b36f5748a2a077f875a73ccb26860d3fcc",
"versionType": "git"
},
{
"status": "affected",
"version": "d6a83228823fc0cc8d79d95c9f0bf568b7317862",
"lessThan": "6eac225f59c1c2277ac74f8a716d6df0ba3b8d28",
"versionType": "git"
},
{
"status": "affected",
"version": "d6a83228823fc0cc8d79d95c9f0bf568b7317862",
"lessThan": "3f28551d0241254a75626d868041c6340285088b",
"versionType": "git"
}
],
"programFiles": [
"net/mac80211/cfg.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "3.9"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "3.9",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.12.112",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.54",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.8",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3-rc4",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/mac80211/cfg.c"
],
"defaultStatus": "affected"
}
]
}
],
"published": "2026-10-06T09:18:25.903",
"references": [
{
"url": "https://git.kernel.org/stable/c/3f28551d0241254a75626d868041c6340285088b",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/5d5ff5b36f5748a2a077f875a73ccb26860d3fcc",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/6eac225f59c1c2277ac74f8a716d6df0ba3b8d28",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/d83da43e9b3b3b1bad99ac5a1065f1c63ad5fc32",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"vulnStatus": "Received",
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: reset state when starting AP fails\n\nieee80211_start_ap() can set enable_beacon (and beacon_int) and fail\nlater, leaving it set forever. Scanning can then attempt to restore\nbeaconing on such an interface, leading to:\n\n Oops: divide error: 0000 [#1] SMP KASAN NOPTI\n RIP: 0010:mac80211_hwsim_link_info_changed+0xca7/0xf00\n Call Trace:\n drv_link_info_changed+0x413/0x860 net/mac80211/driver-ops.c:495\n ieee80211_link_info_change_notify+0x24b/0x3c0 net/mac80211/main.c:427\n ieee80211_offchannel_return+0x381/0x580 net/mac80211/offchannel.c:160\n __ieee80211_scan_completed+0x993/0xe30 net/mac80211/scan.c:519\n ieee80211_scan_work+0x472/0x2010 net/mac80211/scan.c:1193\n cfg80211_wiphy_work+0x2b7/0x550 net/wireless/core.c:538\n\nin hwsim. Also, cfg80211 then allows changing the interface type,\nand the off-channel path getgs confused about beaconing as well,\nleading to another warning:\n\n WARNING: net/mac80211/driver-ops.c:468 at drv_link_info_changed+0x583/0x880\n ieee80211_link_info_change_notify+0x24b/0x3c0 net/mac80211/main.c:427\n ieee80211_offchannel_stop_vifs+0x328/0x5c0 net/mac80211/offchannel.c:122\n ieee80211_start_sw_scan net/mac80211/scan.c:583 [inline]\n __ieee80211_start_scan+0xfb6/0x1af0 net/mac80211/scan.c:882\n\nReset the state on failures to always have it correct."
}
],
"lastModified": "2026-10-06T09:18:25.903",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}