CVE-2026-98307 (GCVE-0-2026-98307)

Vulnerability from cvelistv5 – Published: 2026-10-06 08:46 – Updated: 2026-10-06 08:46
VLAI
Title
wifi: ath11k: cleanup arsta in ath11k_mac_peer_cleanup_all()
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: ath11k: cleanup arsta in ath11k_mac_peer_cleanup_all() When mac80211 removes a sta, it calls .sta_state() which in turn calls ath11k_mac_station_remove(). In that function we clean up both peers & arsta related resources. But when the firmware crashes, ath11k calls ieee80211_restart_hw(), which assumes that all driver related resources are cleaned up beforehand. This cleanup is supposedly done by ath11k_mac_peer_cleanup_all() but does not in fact free arsta->rx_stats / tx_stats. Extract the arsta cleanup from ath11k_mac_station_remove() into a new ath11k_mac_station_cleanup() and call it from both there and ath11k_mac_peer_cleanup_all(). This should handle kmemleaks reports like: unreferenced object 0xffffff801ae66400 (size 1024): comm "hostapd", pid 1306, jiffies 4295011565 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 00 00 00 00 00 00 00 00 ................ backtrace (crc d61c08ec): kmemleak_alloc+0x3c/0x50 __kmalloc_cache_noprof+0x2b0/0x3e0 ath11k_mac_op_sta_state+0x1dc/0xb10 drv_sta_state+0xac/0x6f8 sta_info_insert_rcu+0x314/0x5e0 sta_info_insert+0x14/0x38 ieee80211_add_station+0x10c/0x1a0 nl80211_new_station+0x3e8/0x680 genl_family_rcv_msg_doit+0xc0/0x120 genl_rcv_msg+0x1b4/0x258 netlink_rcv_skb+0x4c/0x108 genl_rcv+0x38/0x60 netlink_unicast+0x190/0x278 netlink_sendmsg+0x15c/0x370 ____sys_sendmsg+0x120/0x290 ___sys_sendmsg+0x70/0xa0 Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.9.0.1-01977-QCAHKSWPL_SILICONZ-1
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6667 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: d5c65159f2895379e11ca13f62feabe93278985d , < c4108dce0838ec7d38d782f76f9c007cfe2fff45 (git)
Affected: d5c65159f2895379e11ca13f62feabe93278985d , < 57bc3cd46458eafa1c38e3044a61b7399cde7642 (git)
Affected: d5c65159f2895379e11ca13f62feabe93278985d , < be1d5e95ec499ed5ee9704aa27dd1407ccf0d0ac (git)
Affected: d5c65159f2895379e11ca13f62feabe93278985d , < 820b8cff81c796ba20573e04722ab62500713f97 (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.6
Unaffected: 0 , < 5.6 (semver)
Unaffected: 6.12.112 , ≤ 6.12.* (semver)
Unaffected: 6.18.54 , ≤ 6.18.* (semver)
Unaffected: 7.2.8 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc4 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/ath/ath11k/mac.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "version": "5.6"
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.12.112",
              "versionType": "semver"
            },
            {
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              "status": "unaffected",
              "version": "6.18.54",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.8",
              "versionType": "semver"
            },
            {
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              "status": "unaffected",
              "version": "7.3-rc4",
              "versionType": "original_commit_for_fix"
            }
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        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.112",
                  "versionStartIncluding": "5.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.54",
                  "versionStartIncluding": "5.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.8",
                  "versionStartIncluding": "5.6",
                  "vulnerable": true
                },
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3-rc4",
                  "versionStartIncluding": "5.6",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath11k: cleanup arsta in ath11k_mac_peer_cleanup_all()\n\nWhen mac80211 removes a sta, it calls .sta_state() which in turn calls\nath11k_mac_station_remove(). In that function we clean up both peers \u0026\narsta related resources.\n\nBut when the firmware crashes, ath11k calls ieee80211_restart_hw(), which\nassumes that all driver related resources are cleaned up beforehand. This\ncleanup is supposedly done by ath11k_mac_peer_cleanup_all() but does not\nin fact free arsta-\u003erx_stats / tx_stats.\n\nExtract the arsta cleanup from ath11k_mac_station_remove() into a\nnew ath11k_mac_station_cleanup() and call it from both there and\nath11k_mac_peer_cleanup_all().\n\nThis should handle kmemleaks reports like:\n\tunreferenced object 0xffffff801ae66400 (size 1024):\n\t  comm \"hostapd\", pid 1306, jiffies 4295011565\n\t  hex dump (first 32 bytes):\n\t    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n\t    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n\t  backtrace (crc d61c08ec):\n\t    kmemleak_alloc+0x3c/0x50\n\t    __kmalloc_cache_noprof+0x2b0/0x3e0\n\t    ath11k_mac_op_sta_state+0x1dc/0xb10\n\t    drv_sta_state+0xac/0x6f8\n\t    sta_info_insert_rcu+0x314/0x5e0\n\t    sta_info_insert+0x14/0x38\n\t    ieee80211_add_station+0x10c/0x1a0\n\t    nl80211_new_station+0x3e8/0x680\n\t    genl_family_rcv_msg_doit+0xc0/0x120\n\t    genl_rcv_msg+0x1b4/0x258\n\t    netlink_rcv_skb+0x4c/0x108\n\t    genl_rcv+0x38/0x60\n\t    netlink_unicast+0x190/0x278\n\t    netlink_sendmsg+0x15c/0x370\n\t    ____sys_sendmsg+0x120/0x290\n\t    ___sys_sendmsg+0x70/0xa0\n\nTested-on: QCN9074 hw1.0 PCI WLAN.HK.2.9.0.1-01977-QCAHKSWPL_SILICONZ-1"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-06T08:46:04.301Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/c4108dce0838ec7d38d782f76f9c007cfe2fff45"
        },
        {
          "url": "https://git.kernel.org/stable/c/57bc3cd46458eafa1c38e3044a61b7399cde7642"
        },
        {
          "url": "https://git.kernel.org/stable/c/be1d5e95ec499ed5ee9704aa27dd1407ccf0d0ac"
        },
        {
          "url": "https://git.kernel.org/stable/c/820b8cff81c796ba20573e04722ab62500713f97"
        }
      ],
      "title": "wifi: ath11k: cleanup arsta in ath11k_mac_peer_cleanup_all()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98307",
    "datePublished": "2026-10-06T08:46:04.301Z",
    "dateReserved": "2026-09-25T10:25:14.338Z",
    "dateUpdated": "2026-10-06T08:46:04.301Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-98307",
      "date": "2026-10-15",
      "epss": "0.00175",
      "percentile": "0.06544"
    },
    "nvd": {
      "cve": {
        "affected": [
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            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "drivers/net/wireless/ath/ath11k/mac.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
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                    "versionType": "git"
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              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "drivers/net/wireless/ath/ath11k/mac.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "5.6"
                  },
                  {
                    "lessThan": "5.6",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.12.*",
                    "status": "unaffected",
                    "version": "6.12.112",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.18.*",
                    "status": "unaffected",
                    "version": "6.18.54",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "7.2.*",
                    "status": "unaffected",
                    "version": "7.2.8",
                    "versionType": "semver"
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                    "versionType": "original_commit_for_fix"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath11k: cleanup arsta in ath11k_mac_peer_cleanup_all()\n\nWhen mac80211 removes a sta, it calls .sta_state() which in turn calls\nath11k_mac_station_remove(). In that function we clean up both peers \u0026\narsta related resources.\n\nBut when the firmware crashes, ath11k calls ieee80211_restart_hw(), which\nassumes that all driver related resources are cleaned up beforehand. This\ncleanup is supposedly done by ath11k_mac_peer_cleanup_all() but does not\nin fact free arsta-\u003erx_stats / tx_stats.\n\nExtract the arsta cleanup from ath11k_mac_station_remove() into a\nnew ath11k_mac_station_cleanup() and call it from both there and\nath11k_mac_peer_cleanup_all().\n\nThis should handle kmemleaks reports like:\n\tunreferenced object 0xffffff801ae66400 (size 1024):\n\t  comm \"hostapd\", pid 1306, jiffies 4295011565\n\t  hex dump (first 32 bytes):\n\t    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n\t    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n\t  backtrace (crc d61c08ec):\n\t    kmemleak_alloc+0x3c/0x50\n\t    __kmalloc_cache_noprof+0x2b0/0x3e0\n\t    ath11k_mac_op_sta_state+0x1dc/0xb10\n\t    drv_sta_state+0xac/0x6f8\n\t    sta_info_insert_rcu+0x314/0x5e0\n\t    sta_info_insert+0x14/0x38\n\t    ieee80211_add_station+0x10c/0x1a0\n\t    nl80211_new_station+0x3e8/0x680\n\t    genl_family_rcv_msg_doit+0xc0/0x120\n\t    genl_rcv_msg+0x1b4/0x258\n\t    netlink_rcv_skb+0x4c/0x108\n\t    genl_rcv+0x38/0x60\n\t    netlink_unicast+0x190/0x278\n\t    netlink_sendmsg+0x15c/0x370\n\t    ____sys_sendmsg+0x120/0x290\n\t    ___sys_sendmsg+0x70/0xa0\n\nTested-on: QCN9074 hw1.0 PCI WLAN.HK.2.9.0.1-01977-QCAHKSWPL_SILICONZ-1"
          }
        ],
        "id": "CVE-2026-98307",
        "lastModified": "2026-10-06T09:18:21.950",
        "metrics": {},
        "published": "2026-10-06T09:18:21.950",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/57bc3cd46458eafa1c38e3044a61b7399cde7642"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/820b8cff81c796ba20573e04722ab62500713f97"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/be1d5e95ec499ed5ee9704aa27dd1407ccf0d0ac"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/c4108dce0838ec7d38d782f76f9c007cfe2fff45"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Received"
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-10-11T05:00:35+00:00",
      "cve": "CVE-2026-98307",
      "id": "CVE-2026-98307",
      "initial_release_date": "2026-10-06T00:00:00+00:00",
      "product_status:known_affected": "235",
      "product_status:known_not_affected": "42",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: wifi: ath11k: cleanup arsta in ath11k_mac_peer_cleanup_all()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98307.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-10-07T16:28:01Z",
      "cve": "CVE-2026-98307",
      "id": "CVE-2026-98307",
      "initial_release_date": "2026-10-07T16:28:01Z",
      "product_status:known_affected": "126",
      "product_status:known_not_affected": "221",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-98307",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-98307.json",
      "version": "2"
    }
  }
}



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