CVE-2024-57995 (GCVE-0-2024-57995)

Vulnerability from cvelistv5 – Published: 2025-02-27 02:07 – Updated: 2026-08-05 11:47
VLAI
Title
wifi: ath12k: fix read pointer after free in ath12k_mac_assign_vif_to_vdev()
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: fix read pointer after free in ath12k_mac_assign_vif_to_vdev() In ath12k_mac_assign_vif_to_vdev(), if arvif is created on a different radio, it gets deleted from that radio through a call to ath12k_mac_unassign_link_vif(). This action frees the arvif pointer. Subsequently, there is a check involving arvif, which will result in a read-after-free scenario. Fix this by moving this check after arvif is again assigned via call to ath12k_mac_assign_link_vif(). Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1
Severity
8.8 (High)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-01 19:31 UTC
CWE
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6653 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: b5068bc9180d06a5ac242b0f9263047c14f86211 , < 57100b87c77818cb0d582a92e5cb32fff85c757d (git)
Affected: b5068bc9180d06a5ac242b0f9263047c14f86211 , < f3a95a312419e4f1e992525917da9dbcd247038f (git)
Affected: b5068bc9180d06a5ac242b0f9263047c14f86211 , < 5a10971c7645a95f5d5dc23c26fbac4bf61801d0 (git)
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Linux Linux Affected: 6.10
Unaffected: 0 , < 6.10 (semver)
Unaffected: 6.12.57 , ≤ 6.12.* (semver)
Unaffected: 6.13.2 , ≤ 6.13.* (semver)
Unaffected: 6.14 , ≤ * (original_commit_for_fix)
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Show details on NVD website
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              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "lessThan": "57100b87c77818cb0d582a92e5cb32fff85c757d",
                  "status": "affected",
                  "version": "b5068bc9180d06a5ac242b0f9263047c14f86211",
                  "versionType": "git"
                },
                {
                  "lessThan": "f3a95a312419e4f1e992525917da9dbcd247038f",
                  "status": "affected",
                  "version": "b5068bc9180d06a5ac242b0f9263047c14f86211",
                  "versionType": "git"
                },
                {
                  "lessThan": "5a10971c7645a95f5d5dc23c26fbac4bf61801d0",
                  "status": "affected",
                  "version": "b5068bc9180d06a5ac242b0f9263047c14f86211",
                  "versionType": "git"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "drivers/net/wireless/ath/ath12k/mac.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "6.10"
                },
                {
                  "lessThan": "6.10",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.12.*",
                  "status": "unaffected",
                  "version": "6.12.57",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.13.*",
                  "status": "unaffected",
                  "version": "6.13.2",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "6.14",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.12.57",
                      "versionStartIncluding": "6.10",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.13.2",
                      "versionStartIncluding": "6.10",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.14",
                      "versionStartIncluding": "6.10",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath12k: fix read pointer after free in ath12k_mac_assign_vif_to_vdev()\n\nIn ath12k_mac_assign_vif_to_vdev(), if arvif is created on a different\nradio, it gets deleted from that radio through a call to\nath12k_mac_unassign_link_vif(). This action frees the arvif pointer.\nSubsequently, there is a check involving arvif, which will result in a\nread-after-free scenario.\n\nFix this by moving this check after arvif is again assigned via call to\nath12k_mac_assign_link_vif().\n\nTested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1"
            }
          ],
          "metrics": [
            {
              "cvssV3_1": {
                "baseScore": 8.8,
                "baseSeverity": "HIGH",
                "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "scenarios": [
                {
                  "lang": "en",
                  "value": "AV:A - The vulnerable code is a mac80211 chanctx-assignment op driven by 802.11 events \u2014 cross-radio scanning, band steering/BSS-transition requests, channel-switch announcements and MLO link reconfiguration \u2014 so an attacker within WiFi range (rogue/evil-twin AP or frame injection) can drive the radio migration that frees the arvif.\nAC:L - The attacker can repeatedly force band/radio migrations of the link vif via beacons, CSA and MLO link reconfiguration, and the freeing plus the stale read happen deterministically on that path with no race to win; heap grooming to control the reallocated object is standard.\nPR:N - An adjacent 802.11 attacker needs no credentials on the target \u2014 background scans and auto-connect to a spoofed known SSID reach the path pre-authentication, and no local account or capability is required.\nUI:N - Background scanning across radios and auto-reconnect to saved networks occur without any user action, and CSA/band-steering frames are processed automatically by the connected station.\nS:U - The freed object, the corrupted structures and the resulting code execution all reside in the kernel\u0027s own security authority; no VM, IOMMU or sandbox boundary is crossed.\nC:H - Taking the `goto flush` branch runs `ath12k_mac_vif_cache_flush()` on the freed arvif, using freed bytes as `arvif-\u003elink_id` to index `ahvif-\u003ecache[]` and returning `arvif-\u003ear` from freed memory for the caller to dereference \u2014 an out-of-bounds/arbitrary read primitive over kernel memory.\nI:H - The same use-after-free path performs writes through freed-memory-derived pointers (`ath12k_mac_bss_info_changed()`, `ath12k_mac_conf_tx()`, key-cache flush, and the caller\u0027s `arvif-\u003epunct_bitmap` store), giving a heap-spray-controlled write primitive suitable for control-flow hijack.\nA:H - Dereferencing freed and reallocated memory as pointers reliably produces a kernel oops/panic even when not exploited further, taking down the affected system."
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-08-05T11:47:14.855Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/57100b87c77818cb0d582a92e5cb32fff85c757d"
            },
            {
              "url": "https://git.kernel.org/stable/c/f3a95a312419e4f1e992525917da9dbcd247038f"
            },
            {
              "url": "https://git.kernel.org/stable/c/5a10971c7645a95f5d5dc23c26fbac4bf61801d0"
            }
          ],
          "title": "wifi: ath12k: fix read pointer after free in ath12k_mac_assign_vif_to_vdev()",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2024-57995",
        "datePublished": "2025-02-27T02:07:16.163Z",
        "dateReserved": "2025-02-27T02:04:28.914Z",
        "dateUpdated": "2026-08-05T11:47:14.855Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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