CVE-2023-53315 (GCVE-0-2023-53315)

Vulnerability from cvelistv5 – Published: 2025-09-16 16:11 – Updated: 2026-08-05 09:13
VLAI
Title
wifi: ath11k: Fix SKB corruption in REO destination ring
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: ath11k: Fix SKB corruption in REO destination ring While running traffics for a long time, randomly an RX descriptor filled with value "0" from REO destination ring is received. This descriptor which is invalid causes the wrong SKB (SKB stored in the IDR lookup with buffer id "0") to be fetched which in turn causes SKB memory corruption issue and the same leads to crash after some time. Changed the start id for idr allocation to "1" and the buffer id "0" is reserved for error validation. Introduced Sanity check to validate the descriptor, before processing the SKB. Crash Signature : Unable to handle kernel paging request at virtual address 3f004900 PC points to "b15_dma_inv_range+0x30/0x50" LR points to "dma_cache_maint_page+0x8c/0x128". The Backtrace obtained is as follows: [<8031716c>] (b15_dma_inv_range) from [<80313a4c>] (dma_cache_maint_page+0x8c/0x128) [<80313a4c>] (dma_cache_maint_page) from [<80313b90>] (__dma_page_dev_to_cpu+0x28/0xcc) [<80313b90>] (__dma_page_dev_to_cpu) from [<7fb5dd68>] (ath11k_dp_process_rx+0x1e8/0x4a4 [ath11k]) [<7fb5dd68>] (ath11k_dp_process_rx [ath11k]) from [<7fb53c20>] (ath11k_dp_service_srng+0xb0/0x2ac [ath11k]) [<7fb53c20>] (ath11k_dp_service_srng [ath11k]) from [<7f67bba4>] (ath11k_pci_ext_grp_napi_poll+0x1c/0x78 [ath11k_pci]) [<7f67bba4>] (ath11k_pci_ext_grp_napi_poll [ath11k_pci]) from [<807d5cf4>] (__napi_poll+0x28/0xb8) [<807d5cf4>] (__napi_poll) from [<807d5f28>] (net_rx_action+0xf0/0x280) [<807d5f28>] (net_rx_action) from [<80302148>] (__do_softirq+0xd0/0x280) [<80302148>] (__do_softirq) from [<80320408>] (irq_exit+0x74/0xd4) [<80320408>] (irq_exit) from [<803638a4>] (__handle_domain_irq+0x90/0xb4) [<803638a4>] (__handle_domain_irq) from [<805bedec>] (gic_handle_irq+0x58/0x90) [<805bedec>] (gic_handle_irq) from [<80301a78>] (__irq_svc+0x58/0x8c) Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.7.0.1-01744-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
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-14 18:25 UTC
CWE
  • CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: d5c65159f2895379e11ca13f62feabe93278985d , < 866921dc06b94df91acfcf9359b57da943ed99b3 (git)
Affected: d5c65159f2895379e11ca13f62feabe93278985d , < 3d3f8fe01a01d94a17fe1ae0d2e894049a972717 (git)
Affected: d5c65159f2895379e11ca13f62feabe93278985d , < 068fd06148fbf0af95bb08dc77cff34ee679fdbc (git)
Affected: d5c65159f2895379e11ca13f62feabe93278985d , < 67459491f78146bcf7d93596e5b709d063dff5d8 (git)
Affected: d5c65159f2895379e11ca13f62feabe93278985d , < f9fff67d2d7ca6fa8066132003a3deef654c55b1 (git)
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Linux Linux Affected: 5.6
Unaffected: 0 , < 5.6 (semver)
Unaffected: 5.10.181 , ≤ 5.10.* (semver)
Unaffected: 5.15.113 , ≤ 5.15.* (semver)
Unaffected: 6.1.30 , ≤ 6.1.* (semver)
Unaffected: 6.3.4 , ≤ 6.3.* (semver)
Unaffected: 6.4 , ≤ * (original_commit_for_fix)
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath11k: Fix SKB corruption in REO destination ring\n\nWhile running traffics for a long time, randomly an RX descriptor\nfilled with value \"0\" from REO destination ring is received.\nThis descriptor which is invalid causes the wrong SKB (SKB stored in\nthe IDR lookup with buffer id \"0\") to be fetched which in turn\ncauses SKB memory corruption issue and the same leads to crash\nafter some time.\n\nChanged the start id for idr allocation to \"1\" and the buffer id \"0\"\nis reserved for error validation. Introduced Sanity check to validate\nthe descriptor, before processing the SKB.\n\nCrash Signature :\n\nUnable to handle kernel paging request at virtual address 3f004900\nPC points to \"b15_dma_inv_range+0x30/0x50\"\nLR points to \"dma_cache_maint_page+0x8c/0x128\".\nThe Backtrace obtained is as follows:\n[\u003c8031716c\u003e] (b15_dma_inv_range) from [\u003c80313a4c\u003e] (dma_cache_maint_page+0x8c/0x128)\n[\u003c80313a4c\u003e] (dma_cache_maint_page) from [\u003c80313b90\u003e] (__dma_page_dev_to_cpu+0x28/0xcc)\n[\u003c80313b90\u003e] (__dma_page_dev_to_cpu) from [\u003c7fb5dd68\u003e] (ath11k_dp_process_rx+0x1e8/0x4a4 [ath11k])\n[\u003c7fb5dd68\u003e] (ath11k_dp_process_rx [ath11k]) from [\u003c7fb53c20\u003e] (ath11k_dp_service_srng+0xb0/0x2ac [ath11k])\n[\u003c7fb53c20\u003e] (ath11k_dp_service_srng [ath11k]) from [\u003c7f67bba4\u003e] (ath11k_pci_ext_grp_napi_poll+0x1c/0x78 [ath11k_pci])\n[\u003c7f67bba4\u003e] (ath11k_pci_ext_grp_napi_poll [ath11k_pci]) from [\u003c807d5cf4\u003e] (__napi_poll+0x28/0xb8)\n[\u003c807d5cf4\u003e] (__napi_poll) from [\u003c807d5f28\u003e] (net_rx_action+0xf0/0x280)\n[\u003c807d5f28\u003e] (net_rx_action) from [\u003c80302148\u003e] (__do_softirq+0xd0/0x280)\n[\u003c80302148\u003e] (__do_softirq) from [\u003c80320408\u003e] (irq_exit+0x74/0xd4)\n[\u003c80320408\u003e] (irq_exit) from [\u003c803638a4\u003e] (__handle_domain_irq+0x90/0xb4)\n[\u003c803638a4\u003e] (__handle_domain_irq) from [\u003c805bedec\u003e] (gic_handle_irq+0x58/0x90)\n[\u003c805bedec\u003e] (gic_handle_irq) from [\u003c80301a78\u003e] (__irq_svc+0x58/0x8c)\n\nTested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.7.0.1-01744-QCAHKSWPL_SILICONZ-1"
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              "value": "AV:A - The bug is reached only when the ath11k radio delivers RX completions through the REO destination ring (HW IRQ \u2192 NAPI \u2192 ath11k_dp_service_srng \u2192 ath11k_dp_process_rx), so an attacker must be on the same Wi\u2011Fi/RF segment to generate that traffic; kernel guidance maps Wi\u2011Fi frame injection to Adjacent.\nAC:L - An adjacent attacker fully controls the RX load that the commit ties to the invalid zero descriptors (prolonged/high traffic), and once such a descriptor appears the vulnerable IDR lookup and SKB free path runs deterministically with no extra un controllable memory-layout requirement.\nPR:N - No privileges on the victim host are required; the vulnerable path runs in softirq on received Wi\u2011Fi traffic. The worst reasonable case is an IPQ8074 AP/open or guest WLAN where an unauthenticated nearby peer can drive RX without any local account or capability.\nUI:N - Frames are processed automatically by the driver\u2019s NAPI RX softirq path with no action by a local user or administrator.\nS:U - Corruption and any resulting privilege impact stay inside the host kernel/driver security authority; there is no VM escape, IOMMU bypass, or other cross-authority boundary.\nC:H - The zero descriptor causes the live buf_id 0 RX SKB to be removed from the IDR, DMA-unmapped, and freed while hardware may still own that buffer\u2014a DMA use-after-free that can disclose reclaimed kernel memory; per guidance UAF is Confidentiality High.\nI:H - The same premature free while RXDMA can still write the old paddr, and later cookie reuse of buf_id 0 against a different SKB, corrupt kernel heap/SKB state and yield write/control-flow primitives; per guidance UAF/memory corruption is Integrity High.\nA:H - The issue is documented to cause a kernel paging fault in ath11k_dp_process_rx (dma_unmap path), i.e. a fatal oops/panic and full availability loss."
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            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath11k: Fix SKB corruption in REO destination ring\n\nWhile running traffics for a long time, randomly an RX descriptor\nfilled with value \"0\" from REO destination ring is received.\nThis descriptor which is invalid causes the wrong SKB (SKB stored in\nthe IDR lookup with buffer id \"0\") to be fetched which in turn\ncauses SKB memory corruption issue and the same leads to crash\nafter some time.\n\nChanged the start id for idr allocation to \"1\" and the buffer id \"0\"\nis reserved for error validation. Introduced Sanity check to validate\nthe descriptor, before processing the SKB.\n\nCrash Signature :\n\nUnable to handle kernel paging request at virtual address 3f004900\nPC points to \"b15_dma_inv_range+0x30/0x50\"\nLR points to \"dma_cache_maint_page+0x8c/0x128\".\nThe Backtrace obtained is as follows:\n[\u003c8031716c\u003e] (b15_dma_inv_range) from [\u003c80313a4c\u003e] (dma_cache_maint_page+0x8c/0x128)\n[\u003c80313a4c\u003e] (dma_cache_maint_page) from [\u003c80313b90\u003e] (__dma_page_dev_to_cpu+0x28/0xcc)\n[\u003c80313b90\u003e] (__dma_page_dev_to_cpu) from [\u003c7fb5dd68\u003e] (ath11k_dp_process_rx+0x1e8/0x4a4 [ath11k])\n[\u003c7fb5dd68\u003e] (ath11k_dp_process_rx [ath11k]) from [\u003c7fb53c20\u003e] (ath11k_dp_service_srng+0xb0/0x2ac [ath11k])\n[\u003c7fb53c20\u003e] (ath11k_dp_service_srng [ath11k]) from [\u003c7f67bba4\u003e] (ath11k_pci_ext_grp_napi_poll+0x1c/0x78 [ath11k_pci])\n[\u003c7f67bba4\u003e] (ath11k_pci_ext_grp_napi_poll [ath11k_pci]) from [\u003c807d5cf4\u003e] (__napi_poll+0x28/0xb8)\n[\u003c807d5cf4\u003e] (__napi_poll) from [\u003c807d5f28\u003e] (net_rx_action+0xf0/0x280)\n[\u003c807d5f28\u003e] (net_rx_action) from [\u003c80302148\u003e] (__do_softirq+0xd0/0x280)\n[\u003c80302148\u003e] (__do_softirq) from [\u003c80320408\u003e] (irq_exit+0x74/0xd4)\n[\u003c80320408\u003e] (irq_exit) from [\u003c803638a4\u003e] (__handle_domain_irq+0x90/0xb4)\n[\u003c803638a4\u003e] (__handle_domain_irq) from [\u003c805bedec\u003e] (gic_handle_irq+0x58/0x90)\n[\u003c805bedec\u003e] (gic_handle_irq) from [\u003c80301a78\u003e] (__irq_svc+0x58/0x8c)\n\nTested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.7.0.1-01744-QCAHKSWPL_SILICONZ-1"
          }
        ],
        "id": "CVE-2023-53315",
        "lastModified": "2026-08-04T10:19:01.657",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "ADJACENT_NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 8.8,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 2.8,
              "impactScore": 5.9,
              "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
              "type": "Secondary"
            },
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 5.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            },
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 5.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 3.6,
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2023-53315",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-14T18:25:50.670949Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2025-09-16T17:15:37.480",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/068fd06148fbf0af95bb08dc77cff34ee679fdbc"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/3d3f8fe01a01d94a17fe1ae0d2e894049a972717"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/67459491f78146bcf7d93596e5b709d063dff5d8"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/866921dc06b94df91acfcf9359b57da943ed99b3"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/f9fff67d2d7ca6fa8066132003a3deef654c55b1"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-401"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          },
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-401"
              }
            ],
            "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-05T11:27:17+00:00",
      "cve": "CVE-2023-53315",
      "id": "CVE-2023-53315",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:known_affected": "156",
      "product_status:known_not_affected": "118",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: wifi: ath11k: Fix SKB corruption in REO destination ring",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-53315.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-02T01:44:55Z",
      "cve": "CVE-2023-53315",
      "id": "CVE-2023-53315",
      "initial_release_date": "2025-09-16T23:29:37Z",
      "product_status:known_affected": "344",
      "product_status:known_not_affected": "395",
      "product_status:recommended": "206",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2023-53315",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-53315.json",
      "version": "22"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "cvssV3_1": {
                  "attackComplexity": "LOW",
                  "attackVector": "LOCAL",
                  "availabilityImpact": "HIGH",
                  "baseScore": 5.5,
                  "baseSeverity": "MEDIUM",
                  "confidentialityImpact": "NONE",
                  "integrityImpact": "NONE",
                  "privilegesRequired": "LOW",
                  "scope": "UNCHANGED",
                  "userInteraction": "NONE",
                  "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "version": "3.1"
                }
              },
              {
                "other": {
                  "content": {
                    "id": "CVE-2023-53315",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-01-14T18:25:50.670949Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "problemTypes": [
              {
                "descriptions": [
                  {
                    "cweId": "CWE-401",
                    "description": "CWE-401 Missing Release of Memory after Effective Lifetime",
                    "lang": "en",
                    "type": "CWE"
                  }
                ]
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-01-14T18:25:46.502Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Linux",
              "programFiles": [
                "drivers/net/wireless/ath/ath11k/dp_rx.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "lessThan": "866921dc06b94df91acfcf9359b57da943ed99b3",
                  "status": "affected",
                  "version": "d5c65159f2895379e11ca13f62feabe93278985d",
                  "versionType": "git"
                },
                {
                  "lessThan": "3d3f8fe01a01d94a17fe1ae0d2e894049a972717",
                  "status": "affected",
                  "version": "d5c65159f2895379e11ca13f62feabe93278985d",
                  "versionType": "git"
                },
                {
                  "lessThan": "068fd06148fbf0af95bb08dc77cff34ee679fdbc",
                  "status": "affected",
                  "version": "d5c65159f2895379e11ca13f62feabe93278985d",
                  "versionType": "git"
                },
                {
                  "lessThan": "67459491f78146bcf7d93596e5b709d063dff5d8",
                  "status": "affected",
                  "version": "d5c65159f2895379e11ca13f62feabe93278985d",
                  "versionType": "git"
                },
                {
                  "lessThan": "f9fff67d2d7ca6fa8066132003a3deef654c55b1",
                  "status": "affected",
                  "version": "d5c65159f2895379e11ca13f62feabe93278985d",
                  "versionType": "git"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "drivers/net/wireless/ath/ath11k/dp_rx.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": "5.10.*",
                  "status": "unaffected",
                  "version": "5.10.181",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.15.*",
                  "status": "unaffected",
                  "version": "5.15.113",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.1.*",
                  "status": "unaffected",
                  "version": "6.1.30",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.3.*",
                  "status": "unaffected",
                  "version": "6.3.4",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "6.4",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.10.181",
                      "versionStartIncluding": "5.6",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.15.113",
                      "versionStartIncluding": "5.6",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.1.30",
                      "versionStartIncluding": "5.6",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.3.4",
                      "versionStartIncluding": "5.6",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.4",
                      "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: Fix SKB corruption in REO destination ring\n\nWhile running traffics for a long time, randomly an RX descriptor\nfilled with value \"0\" from REO destination ring is received.\nThis descriptor which is invalid causes the wrong SKB (SKB stored in\nthe IDR lookup with buffer id \"0\") to be fetched which in turn\ncauses SKB memory corruption issue and the same leads to crash\nafter some time.\n\nChanged the start id for idr allocation to \"1\" and the buffer id \"0\"\nis reserved for error validation. Introduced Sanity check to validate\nthe descriptor, before processing the SKB.\n\nCrash Signature :\n\nUnable to handle kernel paging request at virtual address 3f004900\nPC points to \"b15_dma_inv_range+0x30/0x50\"\nLR points to \"dma_cache_maint_page+0x8c/0x128\".\nThe Backtrace obtained is as follows:\n[\u003c8031716c\u003e] (b15_dma_inv_range) from [\u003c80313a4c\u003e] (dma_cache_maint_page+0x8c/0x128)\n[\u003c80313a4c\u003e] (dma_cache_maint_page) from [\u003c80313b90\u003e] (__dma_page_dev_to_cpu+0x28/0xcc)\n[\u003c80313b90\u003e] (__dma_page_dev_to_cpu) from [\u003c7fb5dd68\u003e] (ath11k_dp_process_rx+0x1e8/0x4a4 [ath11k])\n[\u003c7fb5dd68\u003e] (ath11k_dp_process_rx [ath11k]) from [\u003c7fb53c20\u003e] (ath11k_dp_service_srng+0xb0/0x2ac [ath11k])\n[\u003c7fb53c20\u003e] (ath11k_dp_service_srng [ath11k]) from [\u003c7f67bba4\u003e] (ath11k_pci_ext_grp_napi_poll+0x1c/0x78 [ath11k_pci])\n[\u003c7f67bba4\u003e] (ath11k_pci_ext_grp_napi_poll [ath11k_pci]) from [\u003c807d5cf4\u003e] (__napi_poll+0x28/0xb8)\n[\u003c807d5cf4\u003e] (__napi_poll) from [\u003c807d5f28\u003e] (net_rx_action+0xf0/0x280)\n[\u003c807d5f28\u003e] (net_rx_action) from [\u003c80302148\u003e] (__do_softirq+0xd0/0x280)\n[\u003c80302148\u003e] (__do_softirq) from [\u003c80320408\u003e] (irq_exit+0x74/0xd4)\n[\u003c80320408\u003e] (irq_exit) from [\u003c803638a4\u003e] (__handle_domain_irq+0x90/0xb4)\n[\u003c803638a4\u003e] (__handle_domain_irq) from [\u003c805bedec\u003e] (gic_handle_irq+0x58/0x90)\n[\u003c805bedec\u003e] (gic_handle_irq) from [\u003c80301a78\u003e] (__irq_svc+0x58/0x8c)\n\nTested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.7.0.1-01744-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 bug is reached only when the ath11k radio delivers RX completions through the REO destination ring (HW IRQ \u2192 NAPI \u2192 ath11k_dp_service_srng \u2192 ath11k_dp_process_rx), so an attacker must be on the same Wi\u2011Fi/RF segment to generate that traffic; kernel guidance maps Wi\u2011Fi frame injection to Adjacent.\nAC:L - An adjacent attacker fully controls the RX load that the commit ties to the invalid zero descriptors (prolonged/high traffic), and once such a descriptor appears the vulnerable IDR lookup and SKB free path runs deterministically with no extra un controllable memory-layout requirement.\nPR:N - No privileges on the victim host are required; the vulnerable path runs in softirq on received Wi\u2011Fi traffic. The worst reasonable case is an IPQ8074 AP/open or guest WLAN where an unauthenticated nearby peer can drive RX without any local account or capability.\nUI:N - Frames are processed automatically by the driver\u2019s NAPI RX softirq path with no action by a local user or administrator.\nS:U - Corruption and any resulting privilege impact stay inside the host kernel/driver security authority; there is no VM escape, IOMMU bypass, or other cross-authority boundary.\nC:H - The zero descriptor causes the live buf_id 0 RX SKB to be removed from the IDR, DMA-unmapped, and freed while hardware may still own that buffer\u2014a DMA use-after-free that can disclose reclaimed kernel memory; per guidance UAF is Confidentiality High.\nI:H - The same premature free while RXDMA can still write the old paddr, and later cookie reuse of buf_id 0 against a different SKB, corrupt kernel heap/SKB state and yield write/control-flow primitives; per guidance UAF/memory corruption is Integrity High.\nA:H - The issue is documented to cause a kernel paging fault in ath11k_dp_process_rx (dma_unmap path), i.e. a fatal oops/panic and full availability loss."
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-08-05T09:13:29.017Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/866921dc06b94df91acfcf9359b57da943ed99b3"
            },
            {
              "url": "https://git.kernel.org/stable/c/3d3f8fe01a01d94a17fe1ae0d2e894049a972717"
            },
            {
              "url": "https://git.kernel.org/stable/c/068fd06148fbf0af95bb08dc77cff34ee679fdbc"
            },
            {
              "url": "https://git.kernel.org/stable/c/67459491f78146bcf7d93596e5b709d063dff5d8"
            },
            {
              "url": "https://git.kernel.org/stable/c/f9fff67d2d7ca6fa8066132003a3deef654c55b1"
            }
          ],
          "title": "wifi: ath11k: Fix SKB corruption in REO destination ring",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2023-53315",
        "datePublished": "2025-09-16T16:11:52.242Z",
        "dateReserved": "2025-09-16T16:08:59.562Z",
        "dateUpdated": "2026-08-05T09:13:29.017Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.