CVE-2026-80629 (GCVE-0-2026-80629)

Vulnerability from cvelistv5 – Published: 2026-08-28 06:48 – Updated: 2026-08-28 06:48
VLAI
Title
octeontx2-af: npc: Fix size of entry2cntr_map
Summary
In the Linux kernel, the following vulnerability has been resolved: octeontx2-af: npc: Fix size of entry2cntr_map KASAN prints below splat. This is caused by allocating counter for reserved mcam entry for cpt 2nd pass entry. But mcam->entry2cntr_map is not allocated for reserved entries. BUG: KASAN: slab-out-of-bounds in npc_map_mcam_entry_and_cntr+0xb0/0x1a0 Write of size 2 at addr ffff0001033e7ffe by task kworker/0:1/14 CPU: 0 PID: 14 Comm: kworker/0:1 Not tainted 6.1.67 #1 Hardware name: Marvell CN106XX board (DT) Workqueue: events work_for_cpu_fn Call trace: dump_backtrace.part.0+0xe4/0xf0 show_stack+0x18/0x30 dump_stack_lvl+0x88/0xb4 print_report+0x154/0x458 kasan_report+0xb8/0x194 __asan_store2+0x7c/0xa0 npc_map_mcam_entry_and_cntr+0xb0/0x1a0 rvu_mbox_handler_npc_mcam_write_entry+0x268/0x280 npc_install_flow+0x840/0xfe0 rvu_npc_install_cpt_pass2_entry+0x138/0x190 rvu_nix_init+0x148c/0x2880 rvu_probe+0x1800/0x30b0 local_pci_probe+0x78/0xe0 work_for_cpu_fn+0x30/0x50 process_one_work+0x4cc/0x97c worker_thread+0x360/0x630 kthread+0x1a0/0x1b0 ret_from_fork+0x10/0x20
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 55307fcb925846d760ed80f4a8359dd4331c52bd , < de8e3a4004c5df9461974352e9d7ff0f8313c508 (git)
Affected: 55307fcb925846d760ed80f4a8359dd4331c52bd , < 1d072cc3ba4338d6b2acb85d50a3af5cf2b12a3e (git)
Affected: 55307fcb925846d760ed80f4a8359dd4331c52bd , < 2477c523c6e69733d51101ae9bd2dfc0a054b13d (git)
Affected: 55307fcb925846d760ed80f4a8359dd4331c52bd , < f9cd6fabe0e7c7f6fc30c6c192c7ed72aba37232 (git)
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Linux Linux Affected: 5.11
Unaffected: 0 , < 5.11 (semver)
Unaffected: 6.12.97 , ≤ 6.12.* (semver)
Unaffected: 6.18.40 , ≤ 6.18.* (semver)
Unaffected: 7.1.5 , ≤ 7.1.* (semver)
Unaffected: 7.2 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "de8e3a4004c5df9461974352e9d7ff0f8313c508",
              "status": "affected",
              "version": "55307fcb925846d760ed80f4a8359dd4331c52bd",
              "versionType": "git"
            },
            {
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              "status": "affected",
              "version": "55307fcb925846d760ed80f4a8359dd4331c52bd",
              "versionType": "git"
            },
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              "version": "55307fcb925846d760ed80f4a8359dd4331c52bd",
              "versionType": "git"
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              "versionType": "git"
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        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.11"
            },
            {
              "lessThan": "5.11",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.97",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.97",
                  "versionStartIncluding": "5.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.40",
                  "versionStartIncluding": "5.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.5",
                  "versionStartIncluding": "5.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "5.11",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nocteontx2-af: npc: Fix size of entry2cntr_map\n\nKASAN prints below splat. This is caused by allocating counter for\nreserved mcam entry for cpt 2nd pass entry. But mcam-\u003eentry2cntr_map\nis not allocated for reserved entries.\n\nBUG: KASAN: slab-out-of-bounds in npc_map_mcam_entry_and_cntr+0xb0/0x1a0\nWrite of size 2 at addr ffff0001033e7ffe by task kworker/0:1/14\n\nCPU: 0 PID: 14 Comm: kworker/0:1 Not tainted 6.1.67 #1\nHardware name: Marvell CN106XX board (DT)\nWorkqueue: events work_for_cpu_fn\nCall trace:\n dump_backtrace.part.0+0xe4/0xf0\n show_stack+0x18/0x30\n dump_stack_lvl+0x88/0xb4\n print_report+0x154/0x458\n kasan_report+0xb8/0x194\n __asan_store2+0x7c/0xa0\n npc_map_mcam_entry_and_cntr+0xb0/0x1a0\n rvu_mbox_handler_npc_mcam_write_entry+0x268/0x280\n npc_install_flow+0x840/0xfe0\n rvu_npc_install_cpt_pass2_entry+0x138/0x190\n rvu_nix_init+0x148c/0x2880\n rvu_probe+0x1800/0x30b0\n local_pci_probe+0x78/0xe0\n work_for_cpu_fn+0x30/0x50\n process_one_work+0x4cc/0x97c\n worker_thread+0x360/0x630\n kthread+0x1a0/0x1b0\n ret_from_fork+0x10/0x20"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-28T06:48:45.976Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/de8e3a4004c5df9461974352e9d7ff0f8313c508"
        },
        {
          "url": "https://git.kernel.org/stable/c/1d072cc3ba4338d6b2acb85d50a3af5cf2b12a3e"
        },
        {
          "url": "https://git.kernel.org/stable/c/2477c523c6e69733d51101ae9bd2dfc0a054b13d"
        },
        {
          "url": "https://git.kernel.org/stable/c/f9cd6fabe0e7c7f6fc30c6c192c7ed72aba37232"
        }
      ],
      "title": "octeontx2-af: npc: Fix size of entry2cntr_map",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-80629",
    "datePublished": "2026-08-28T06:48:45.976Z",
    "dateReserved": "2026-08-26T14:34:25.776Z",
    "dateUpdated": "2026-08-28T06:48:45.976Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-80629",
      "date": "2026-09-01",
      "epss": "0.00168",
      "percentile": "0.06283"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-80629\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-08-28T08:16:47.743\",\"lastModified\":\"2026-08-28T08:16:47.743\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nocteontx2-af: npc: Fix size of entry2cntr_map\\n\\nKASAN prints below splat. This is caused by allocating counter for\\nreserved mcam entry for cpt 2nd pass entry. But mcam-\u003eentry2cntr_map\\nis not allocated for reserved entries.\\n\\nBUG: KASAN: slab-out-of-bounds in npc_map_mcam_entry_and_cntr+0xb0/0x1a0\\nWrite of size 2 at addr ffff0001033e7ffe by task kworker/0:1/14\\n\\nCPU: 0 PID: 14 Comm: kworker/0:1 Not tainted 6.1.67 #1\\nHardware name: Marvell CN106XX board (DT)\\nWorkqueue: events work_for_cpu_fn\\nCall trace:\\n dump_backtrace.part.0+0xe4/0xf0\\n show_stack+0x18/0x30\\n dump_stack_lvl+0x88/0xb4\\n print_report+0x154/0x458\\n kasan_report+0xb8/0x194\\n __asan_store2+0x7c/0xa0\\n npc_map_mcam_entry_and_cntr+0xb0/0x1a0\\n rvu_mbox_handler_npc_mcam_write_entry+0x268/0x280\\n npc_install_flow+0x840/0xfe0\\n rvu_npc_install_cpt_pass2_entry+0x138/0x190\\n rvu_nix_init+0x148c/0x2880\\n rvu_probe+0x1800/0x30b0\\n local_pci_probe+0x78/0xe0\\n work_for_cpu_fn+0x30/0x50\\n process_one_work+0x4cc/0x97c\\n worker_thread+0x360/0x630\\n kthread+0x1a0/0x1b0\\n ret_from_fork+0x10/0x20\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"55307fcb925846d760ed80f4a8359dd4331c52bd\",\"lessThan\":\"de8e3a4004c5df9461974352e9d7ff0f8313c508\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"55307fcb925846d760ed80f4a8359dd4331c52bd\",\"lessThan\":\"1d072cc3ba4338d6b2acb85d50a3af5cf2b12a3e\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"55307fcb925846d760ed80f4a8359dd4331c52bd\",\"lessThan\":\"2477c523c6e69733d51101ae9bd2dfc0a054b13d\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"55307fcb925846d760ed80f4a8359dd4331c52bd\",\"lessThan\":\"f9cd6fabe0e7c7f6fc30c6c192c7ed72aba37232\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"5.11\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"5.11\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.97\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.40\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.1.5\",\"lessThanOrEqual\":\"7.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.2\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1d072cc3ba4338d6b2acb85d50a3af5cf2b12a3e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/2477c523c6e69733d51101ae9bd2dfc0a054b13d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/de8e3a4004c5df9461974352e9d7ff0f8313c508\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f9cd6fabe0e7c7f6fc30c6c192c7ed72aba37232\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-31T08:43:56+00:00",
      "cve": "CVE-2026-80629",
      "id": "CVE-2026-80629",
      "initial_release_date": "2026-08-28T00:00:00+00:00",
      "product_status:known_affected": "184",
      "product_status:known_not_affected": "90",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: octeontx2-af: npc: Fix size of entry2cntr_map",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80629.json",
      "version": "3"
    }
  }
}



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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

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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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