CVE-2025-71297

Estado: AnalizadaMedia (5.5)—

In the Linux kernel, the following vulnerability has been resolved:

wifi: rtw88: 8822b: Avoid WARNING in rtw8822b_config_trx_mode()

rtw8822b_set_antenna() can be called from userspace when the chip is powered off. In that case a WARNING is triggered in rtw8822b_config_trx_mode() because trying to read the RF registers when the chip is powered off returns an unexpected value.

Call rtw8822b_config_trx_mode() in rtw8822b_set_antenna() only when the chip is powered on.

Detalles técnicos trazas, registros y código del informe original

------------[ cut here ]------------
write RF mode table fail
WARNING: CPU: 0 PID: 7183 at rtw8822b.c:824 rtw8822b_config_trx_mode.constprop.0+0x835/0x840 [rtw88_8822b]
CPU: 0 UID: 0 PID: 7183 Comm: iw Tainted: G        W  OE       6.17.5-arch1-1 #1 PREEMPT(full)  01c39fc421df2af799dd5e9180b572af860b40c1
Tainted: [W]=WARN, [O]=OOT_MODULE, [E]=UNSIGNED_MODULE
Hardware name: LENOVO 82KR/LNVNB161216, BIOS HBCN18WW 08/27/2021
RIP: 0010:rtw8822b_config_trx_mode.constprop.0+0x835/0x840 [rtw88_8822b]
Call Trace:
 <TASK>
 rtw8822b_set_antenna+0x57/0x70 [rtw88_8822b 370206f42e5890d8d5f48eb358b759efa37c422b]
 rtw_ops_set_antenna+0x50/0x80 [rtw88_core 711c8fb4f686162be4625b1d0b8e8c6a5ac850fb]
 ieee80211_set_antenna+0x60/0x100 [mac80211 f1845d85d2ecacf3b71867635a050ece90486cf3]
 nl80211_set_wiphy+0x384/0xe00 [cfg80211 296485ee85696d2150309a6d21a7fbca83d3dbda]
 ? netdev_run_todo+0x63/0x550
 genl_family_rcv_msg_doit+0xfc/0x160
 genl_rcv_msg+0x1aa/0x2b0
 ? __pfx_nl80211_pre_doit+0x10/0x10 [cfg80211 296485ee85696d2150309a6d21a7fbca83d3dbda]
 ? __pfx_nl80211_set_wiphy+0x10/0x10 [cfg80211 296485ee85696d2150309a6d21a7fbca83d3dbda]
 ? __pfx_nl80211_post_doit+0x10/0x10 [cfg80211 296485ee85696d2150309a6d21a7fbca83d3dbda]
 ? __pfx_genl_rcv_msg+0x10/0x10
 netlink_rcv_skb+0x59/0x110
 genl_rcv+0x28/0x40
 netlink_unicast+0x285/0x3c0
 ? __alloc_skb+0xdb/0x1a0
 netlink_sendmsg+0x20d/0x430
 ____sys_sendmsg+0x39f/0x3d0
 ? import_iovec+0x2f/0x40
 ___sys_sendmsg+0x99/0xe0
 ? refill_obj_stock+0x12e/0x240
 __sys_sendmsg+0x8a/0xf0
 do_syscall_64+0x81/0x970
 ? do_syscall_64+0x81/0x970
 ? ksys_read+0x73/0xf0
 ? do_syscall_64+0x81/0x970
 ? count_memcg_events+0xc2/0x190
 ? handle_mm_fault+0x1d7/0x2d0
 ? do_user_addr_fault+0x21a/0x690
 ? exc_page_fault+0x7e/0x1a0
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
 </TASK>
---[ end trace 0000000000000000 ]---

CVSS

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: 0.12%
Percentil entre todas las CVEs puntuadas: 2
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)

Linux — Linux Kernel

CWE

NVD-CWE-noinfo

Referencias

JSON original (NVD)

Mostrar

{
  "id": "CVE-2025-71297",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
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          "vendor": "Linux",
          "product": "Linux",
          "versions": [
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              "versionType": "git"
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          ],
          "programFiles": [
            "drivers/net/wireless/realtek/rtw88/rtw8822b.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
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          "vendor": "Linux",
          "product": "Linux",
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              "versionType": "semver",
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              "version": "6.19.6",
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            },
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              "version": "7.0",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/net/wireless/realtek/rtw88/rtw8822b.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-05-08T14:16:31.000",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/0d0c2fb80ca4c284c397dd7546743a3b5fdf4020",
      "tags": [
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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      "tags": [
        "Patch"
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/a96d161cfdb11cd2c35d5e498b93431164823338",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rtw88: 8822b: Avoid WARNING in rtw8822b_config_trx_mode()\n\nrtw8822b_set_antenna() can be called from userspace when the chip is\npowered off. In that case a WARNING is triggered in\nrtw8822b_config_trx_mode() because trying to read the RF registers\nwhen the chip is powered off returns an unexpected value.\n\nCall rtw8822b_config_trx_mode() in rtw8822b_set_antenna() only when\nthe chip is powered on.\n\n------------[ cut here ]------------\nwrite RF mode table fail\nWARNING: CPU: 0 PID: 7183 at rtw8822b.c:824 rtw8822b_config_trx_mode.constprop.0+0x835/0x840 [rtw88_8822b]\nCPU: 0 UID: 0 PID: 7183 Comm: iw Tainted: G        W  OE       6.17.5-arch1-1 #1 PREEMPT(full)  01c39fc421df2af799dd5e9180b572af860b40c1\nTainted: [W]=WARN, [O]=OOT_MODULE, [E]=UNSIGNED_MODULE\nHardware name: LENOVO 82KR/LNVNB161216, BIOS HBCN18WW 08/27/2021\nRIP: 0010:rtw8822b_config_trx_mode.constprop.0+0x835/0x840 [rtw88_8822b]\nCall Trace:\n <TASK>\n rtw8822b_set_antenna+0x57/0x70 [rtw88_8822b 370206f42e5890d8d5f48eb358b759efa37c422b]\n rtw_ops_set_antenna+0x50/0x80 [rtw88_core 711c8fb4f686162be4625b1d0b8e8c6a5ac850fb]\n ieee80211_set_antenna+0x60/0x100 [mac80211 f1845d85d2ecacf3b71867635a050ece90486cf3]\n nl80211_set_wiphy+0x384/0xe00 [cfg80211 296485ee85696d2150309a6d21a7fbca83d3dbda]\n ? netdev_run_todo+0x63/0x550\n genl_family_rcv_msg_doit+0xfc/0x160\n genl_rcv_msg+0x1aa/0x2b0\n ? __pfx_nl80211_pre_doit+0x10/0x10 [cfg80211 296485ee85696d2150309a6d21a7fbca83d3dbda]\n ? __pfx_nl80211_set_wiphy+0x10/0x10 [cfg80211 296485ee85696d2150309a6d21a7fbca83d3dbda]\n ? __pfx_nl80211_post_doit+0x10/0x10 [cfg80211 296485ee85696d2150309a6d21a7fbca83d3dbda]\n ? __pfx_genl_rcv_msg+0x10/0x10\n netlink_rcv_skb+0x59/0x110\n genl_rcv+0x28/0x40\n netlink_unicast+0x285/0x3c0\n ? __alloc_skb+0xdb/0x1a0\n netlink_sendmsg+0x20d/0x430\n ____sys_sendmsg+0x39f/0x3d0\n ? import_iovec+0x2f/0x40\n ___sys_sendmsg+0x99/0xe0\n ? refill_obj_stock+0x12e/0x240\n __sys_sendmsg+0x8a/0xf0\n do_syscall_64+0x81/0x970\n ? do_syscall_64+0x81/0x970\n ? ksys_read+0x73/0xf0\n ? do_syscall_64+0x81/0x970\n ? count_memcg_events+0xc2/0x190\n ? handle_mm_fault+0x1d7/0x2d0\n ? do_user_addr_fault+0x21a/0x690\n ? exc_page_fault+0x7e/0x1a0\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n </TASK>\n---[ end trace 0000000000000000 ]---"
    }
  ],
  "lastModified": "2026-06-17T10:04:01.813",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "FC8D0495-5814-4076-B651-12AD51496D92",
              "versionEndExcluding": "6.1.165",
              "versionStartIncluding": "5.8"
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          "operator": "OR"
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}