CVE-2023-52621 (GCVE-0-2023-52621)

Vulnerability from cvelistv5 – Published: 2024-03-26 17:19 – Updated: 2026-05-11 19:30
VLAI
Title
bpf: Check rcu_read_lock_trace_held() before calling bpf map helpers
Summary
In the Linux kernel, the following vulnerability has been resolved: bpf: Check rcu_read_lock_trace_held() before calling bpf map helpers These three bpf_map_{lookup,update,delete}_elem() helpers are also available for sleepable bpf program, so add the corresponding lock assertion for sleepable bpf program, otherwise the following warning will be reported when a sleepable bpf program manipulates bpf map under interpreter mode (aka bpf_jit_enable=0): WARNING: CPU: 3 PID: 4985 at kernel/bpf/helpers.c:40 ...... CPU: 3 PID: 4985 Comm: test_progs Not tainted 6.6.0+ #2 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996) ...... RIP: 0010:bpf_map_lookup_elem+0x54/0x60 ...... Call Trace: <TASK> ? __warn+0xa5/0x240 ? bpf_map_lookup_elem+0x54/0x60 ? report_bug+0x1ba/0x1f0 ? handle_bug+0x40/0x80 ? exc_invalid_op+0x18/0x50 ? asm_exc_invalid_op+0x1b/0x20 ? __pfx_bpf_map_lookup_elem+0x10/0x10 ? rcu_lockdep_current_cpu_online+0x65/0xb0 ? rcu_is_watching+0x23/0x50 ? bpf_map_lookup_elem+0x54/0x60 ? __pfx_bpf_map_lookup_elem+0x10/0x10 ___bpf_prog_run+0x513/0x3b70 __bpf_prog_run32+0x9d/0xd0 ? __bpf_prog_enter_sleepable_recur+0xad/0x120 ? __bpf_prog_enter_sleepable_recur+0x3e/0x120 bpf_trampoline_6442580665+0x4d/0x1000 __x64_sys_getpgid+0x5/0x30 ? do_syscall_64+0x36/0xb0 entry_SYSCALL_64_after_hwframe+0x6e/0x76 </TASK>
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 1e6c62a8821557720a9b2ea9617359b264f2f67c , < 82f2df94dac1aa9b879e74d1f82ba1b631bdc612 (git)
Affected: 1e6c62a8821557720a9b2ea9617359b264f2f67c , < 3516f93cc63d956e1b290ae4b7bf2586074535a0 (git)
Affected: 1e6c62a8821557720a9b2ea9617359b264f2f67c , < d6d6fe4bb105595118f12abeed4a7bdd450853f3 (git)
Affected: 1e6c62a8821557720a9b2ea9617359b264f2f67c , < 483cb92334cd7f1d5387dccc0ab5d595d27a669d (git)
Affected: 1e6c62a8821557720a9b2ea9617359b264f2f67c , < c7f1b6146f4a46d727c0d046284c28b6882c6304 (git)
Affected: 1e6c62a8821557720a9b2ea9617359b264f2f67c , < 169410eba271afc9f0fb476d996795aa26770c6d (git)
Create a notification for this product.
Linux Linux Affected: 5.10
Unaffected: 0 , < 5.10 (semver)
Unaffected: 5.10.237 , ≤ 5.10.* (semver)
Unaffected: 5.15.181 , ≤ 5.15.* (semver)
Unaffected: 6.1.77 , ≤ 6.1.* (semver)
Unaffected: 6.6.16 , ≤ 6.6.* (semver)
Unaffected: 6.7.4 , ≤ 6.7.* (semver)
Unaffected: 6.8 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T19:28:46.555Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/d6d6fe4bb105595118f12abeed4a7bdd450853f3"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/483cb92334cd7f1d5387dccc0ab5d595d27a669d"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/c7f1b6146f4a46d727c0d046284c28b6882c6304"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/169410eba271afc9f0fb476d996795aa26770c6d"
          },
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-52621",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T15:54:18.779612Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-11T17:33:56.616Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "kernel/bpf/helpers.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "82f2df94dac1aa9b879e74d1f82ba1b631bdc612",
              "status": "affected",
              "version": "1e6c62a8821557720a9b2ea9617359b264f2f67c",
              "versionType": "git"
            },
            {
              "lessThan": "3516f93cc63d956e1b290ae4b7bf2586074535a0",
              "status": "affected",
              "version": "1e6c62a8821557720a9b2ea9617359b264f2f67c",
              "versionType": "git"
            },
            {
              "lessThan": "d6d6fe4bb105595118f12abeed4a7bdd450853f3",
              "status": "affected",
              "version": "1e6c62a8821557720a9b2ea9617359b264f2f67c",
              "versionType": "git"
            },
            {
              "lessThan": "483cb92334cd7f1d5387dccc0ab5d595d27a669d",
              "status": "affected",
              "version": "1e6c62a8821557720a9b2ea9617359b264f2f67c",
              "versionType": "git"
            },
            {
              "lessThan": "c7f1b6146f4a46d727c0d046284c28b6882c6304",
              "status": "affected",
              "version": "1e6c62a8821557720a9b2ea9617359b264f2f67c",
              "versionType": "git"
            },
            {
              "lessThan": "169410eba271afc9f0fb476d996795aa26770c6d",
              "status": "affected",
              "version": "1e6c62a8821557720a9b2ea9617359b264f2f67c",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "kernel/bpf/helpers.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.10"
            },
            {
              "lessThan": "5.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.237",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.181",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.77",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.16",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.7.*",
              "status": "unaffected",
              "version": "6.7.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.8",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.237",
                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.181",
                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.77",
                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.16",
                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.7.4",
                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.8",
                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Check rcu_read_lock_trace_held() before calling bpf map helpers\n\nThese three bpf_map_{lookup,update,delete}_elem() helpers are also\navailable for sleepable bpf program, so add the corresponding lock\nassertion for sleepable bpf program, otherwise the following warning\nwill be reported when a sleepable bpf program manipulates bpf map under\ninterpreter mode (aka bpf_jit_enable=0):\n\n  WARNING: CPU: 3 PID: 4985 at kernel/bpf/helpers.c:40 ......\n  CPU: 3 PID: 4985 Comm: test_progs Not tainted 6.6.0+ #2\n  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996) ......\n  RIP: 0010:bpf_map_lookup_elem+0x54/0x60\n  ......\n  Call Trace:\n   \u003cTASK\u003e\n   ? __warn+0xa5/0x240\n   ? bpf_map_lookup_elem+0x54/0x60\n   ? report_bug+0x1ba/0x1f0\n   ? handle_bug+0x40/0x80\n   ? exc_invalid_op+0x18/0x50\n   ? asm_exc_invalid_op+0x1b/0x20\n   ? __pfx_bpf_map_lookup_elem+0x10/0x10\n   ? rcu_lockdep_current_cpu_online+0x65/0xb0\n   ? rcu_is_watching+0x23/0x50\n   ? bpf_map_lookup_elem+0x54/0x60\n   ? __pfx_bpf_map_lookup_elem+0x10/0x10\n   ___bpf_prog_run+0x513/0x3b70\n   __bpf_prog_run32+0x9d/0xd0\n   ? __bpf_prog_enter_sleepable_recur+0xad/0x120\n   ? __bpf_prog_enter_sleepable_recur+0x3e/0x120\n   bpf_trampoline_6442580665+0x4d/0x1000\n   __x64_sys_getpgid+0x5/0x30\n   ? do_syscall_64+0x36/0xb0\n   entry_SYSCALL_64_after_hwframe+0x6e/0x76\n   \u003c/TASK\u003e"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T19:30:31.518Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/82f2df94dac1aa9b879e74d1f82ba1b631bdc612"
        },
        {
          "url": "https://git.kernel.org/stable/c/3516f93cc63d956e1b290ae4b7bf2586074535a0"
        },
        {
          "url": "https://git.kernel.org/stable/c/d6d6fe4bb105595118f12abeed4a7bdd450853f3"
        },
        {
          "url": "https://git.kernel.org/stable/c/483cb92334cd7f1d5387dccc0ab5d595d27a669d"
        },
        {
          "url": "https://git.kernel.org/stable/c/c7f1b6146f4a46d727c0d046284c28b6882c6304"
        },
        {
          "url": "https://git.kernel.org/stable/c/169410eba271afc9f0fb476d996795aa26770c6d"
        }
      ],
      "title": "bpf: Check rcu_read_lock_trace_held() before calling bpf map helpers",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-52621",
    "datePublished": "2024-03-26T17:19:23.208Z",
    "dateReserved": "2024-03-06T09:52:12.090Z",
    "dateUpdated": "2026-05-11T19:30:31.518Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2023-52621",
      "date": "2026-07-19",
      "epss": "0.00238",
      "percentile": "0.14851"
    },
    "microsoft_vex": {
      "current_release_date": "2026-02-18T14:55:22.000Z",
      "cve": "CVE-2023-52621",
      "id": "msrc_CVE-2023-52621",
      "initial_release_date": "2024-03-02T08:00:00.000Z",
      "product_status:fixed": "2",
      "product_status:known_affected": "2",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "bpf: Check rcu_read_lock_trace_held() before calling bpf map helpers",
      "url": "https://msrc.microsoft.com/csaf/vex/2024/msrc_cve-2023-52621.json",
      "version": "2"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-52621\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-03-26T18:15:08.817\",\"lastModified\":\"2026-06-17T06:43:11.147\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbpf: Check rcu_read_lock_trace_held() before calling bpf map helpers\\n\\nThese three bpf_map_{lookup,update,delete}_elem() helpers are also\\navailable for sleepable bpf program, so add the corresponding lock\\nassertion for sleepable bpf program, otherwise the following warning\\nwill be reported when a sleepable bpf program manipulates bpf map under\\ninterpreter mode (aka bpf_jit_enable=0):\\n\\n  WARNING: CPU: 3 PID: 4985 at kernel/bpf/helpers.c:40 ......\\n  CPU: 3 PID: 4985 Comm: test_progs Not tainted 6.6.0+ #2\\n  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996) ......\\n  RIP: 0010:bpf_map_lookup_elem+0x54/0x60\\n  ......\\n  Call Trace:\\n   \u003cTASK\u003e\\n   ? __warn+0xa5/0x240\\n   ? bpf_map_lookup_elem+0x54/0x60\\n   ? report_bug+0x1ba/0x1f0\\n   ? handle_bug+0x40/0x80\\n   ? exc_invalid_op+0x18/0x50\\n   ? asm_exc_invalid_op+0x1b/0x20\\n   ? __pfx_bpf_map_lookup_elem+0x10/0x10\\n   ? rcu_lockdep_current_cpu_online+0x65/0xb0\\n   ? rcu_is_watching+0x23/0x50\\n   ? bpf_map_lookup_elem+0x54/0x60\\n   ? __pfx_bpf_map_lookup_elem+0x10/0x10\\n   ___bpf_prog_run+0x513/0x3b70\\n   __bpf_prog_run32+0x9d/0xd0\\n   ? __bpf_prog_enter_sleepable_recur+0xad/0x120\\n   ? __bpf_prog_enter_sleepable_recur+0x3e/0x120\\n   bpf_trampoline_6442580665+0x4d/0x1000\\n   __x64_sys_getpgid+0x5/0x30\\n   ? do_syscall_64+0x36/0xb0\\n   entry_SYSCALL_64_after_hwframe+0x6e/0x76\\n   \u003c/TASK\u003e\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bpf: verifique rcu_read_lock_trace_held() antes de llamar a los ayudantes de mapas de bpf. Estos tres ayudantes de bpf_map_{lookup,update,delete}_elem() tambi\u00e9n est\u00e1n disponibles para el programa bpf que se puede dormir, as\u00ed que agregue el bloqueo correspondiente. aserci\u00f3n para el programa bpf con capacidad para dormir; de lo contrario, se informar\u00e1 la siguiente advertencia cuando un programa bpf con capacidad para dormir manipule el mapa bpf en modo int\u00e9rprete (tambi\u00e9n conocido como bpf_jit_enable=0): ADVERTENCIA: CPU: 3 PID: 4985 en kernel/bpf/helpers.c:40. ..... CPU: 3 PID: 4985 Comm: test_progs Not tainted 6.6.0+ #2 Nombre del hardware: PC est\u00e1ndar QEMU (i440FX + PIIX, 1996) ...... RIP: 0010:bpf_map_lookup_elem+0x54/0x60 ...... Seguimiento de llamadas:  ? __advertir+0xa5/0x240 ? bpf_map_lookup_elem+0x54/0x60? report_bug+0x1ba/0x1f0? handle_bug+0x40/0x80? exc_invalid_op+0x18/0x50? asm_exc_invalid_op+0x1b/0x20? __pfx_bpf_map_lookup_elem+0x10/0x10 ? rcu_lockdep_current_cpu_online+0x65/0xb0? rcu_is_watching+0x23/0x50? bpf_map_lookup_elem+0x54/0x60? __pfx_bpf_map_lookup_elem+0x10/0x10 ___bpf_prog_run+0x513/0x3b70 __bpf_prog_run32+0x9d/0xd0 ? __bpf_prog_enter_sleepable_recur+0xad/0x120 ? __bpf_prog_enter_sleepable_recur+0x3e/0x120 bpf_trampoline_6442580665+0x4d/0x1000 __x64_sys_getpgid+0x5/0x30 ? do_syscall_64+0x36/0xb0 entrada_SYSCALL_64_after_hwframe+0x6e/0x76 \"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"kernel/bpf/helpers.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"1e6c62a8821557720a9b2ea9617359b264f2f67c\",\"lessThan\":\"82f2df94dac1aa9b879e74d1f82ba1b631bdc612\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1e6c62a8821557720a9b2ea9617359b264f2f67c\",\"lessThan\":\"3516f93cc63d956e1b290ae4b7bf2586074535a0\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1e6c62a8821557720a9b2ea9617359b264f2f67c\",\"lessThan\":\"d6d6fe4bb105595118f12abeed4a7bdd450853f3\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1e6c62a8821557720a9b2ea9617359b264f2f67c\",\"lessThan\":\"483cb92334cd7f1d5387dccc0ab5d595d27a669d\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1e6c62a8821557720a9b2ea9617359b264f2f67c\",\"lessThan\":\"c7f1b6146f4a46d727c0d046284c28b6882c6304\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1e6c62a8821557720a9b2ea9617359b264f2f67c\",\"lessThan\":\"169410eba271afc9f0fb476d996795aa26770c6d\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"kernel/bpf/helpers.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"5.10\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"5.10\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.237\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.181\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.77\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.16\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.7.4\",\"lessThanOrEqual\":\"6.7.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.8\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2024-09-10T15:54:18.779612Z\",\"id\":\"CVE-2023-52621\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-617\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"FA6FEEC2-9F11-4643-8827-749718254FED\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.10\",\"versionEndExcluding\":\"5.10.237\",\"matchCriteriaId\":\"ADF07DB8-E560-4CDE-8E9C-2297AFF73222\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.181\",\"matchCriteriaId\":\"12331C9E-F601-4EFC-899E-369F98DCC70B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.77\",\"matchCriteriaId\":\"0FA28946-970D-4F4D-B759-4E77B28809B5\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.16\",\"matchCriteriaId\":\"A5007D6A-4B58-423A-8A3A-A1A656A263C8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.7.4\",\"matchCriteriaId\":\"848BC44C-9D25-4557-A50A-4B8BF310FA78\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/169410eba271afc9f0fb476d996795aa26770c6d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/3516f93cc63d956e1b290ae4b7bf2586074535a0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/483cb92334cd7f1d5387dccc0ab5d595d27a669d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/82f2df94dac1aa9b879e74d1f82ba1b631bdc612\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/c7f1b6146f4a46d727c0d046284c28b6882c6304\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/d6d6fe4bb105595118f12abeed4a7bdd450853f3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/169410eba271afc9f0fb476d996795aa26770c6d\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/483cb92334cd7f1d5387dccc0ab5d595d27a669d\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/c7f1b6146f4a46d727c0d046284c28b6882c6304\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/d6d6fe4bb105595118f12abeed4a7bdd450853f3\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-06-28T07:57:07+00:00",
      "cve": "CVE-2023-52621",
      "id": "CVE-2023-52621",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:fixed": "280",
      "product_status:known_affected": "112",
      "product_status:known_not_affected": "8",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: bpf: Check rcu_read_lock_trace_held() before calling bpf map helpers",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-52621.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/d6d6fe4bb105595118f12abeed4a7bdd450853f3\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/483cb92334cd7f1d5387dccc0ab5d595d27a669d\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/c7f1b6146f4a46d727c0d046284c28b6882c6304\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/169410eba271afc9f0fb476d996795aa26770c6d\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html\"}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2025-11-03T19:28:46.555Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-52621\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-09-10T15:54:18.779612Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-09-11T12:42:19.759Z\"}}], \"cna\": {\"title\": \"bpf: Check rcu_read_lock_trace_held() before calling bpf map helpers\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"1e6c62a8821557720a9b2ea9617359b264f2f67c\", \"lessThan\": \"82f2df94dac1aa9b879e74d1f82ba1b631bdc612\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1e6c62a8821557720a9b2ea9617359b264f2f67c\", \"lessThan\": \"3516f93cc63d956e1b290ae4b7bf2586074535a0\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1e6c62a8821557720a9b2ea9617359b264f2f67c\", \"lessThan\": \"d6d6fe4bb105595118f12abeed4a7bdd450853f3\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1e6c62a8821557720a9b2ea9617359b264f2f67c\", \"lessThan\": \"483cb92334cd7f1d5387dccc0ab5d595d27a669d\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1e6c62a8821557720a9b2ea9617359b264f2f67c\", \"lessThan\": \"c7f1b6146f4a46d727c0d046284c28b6882c6304\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1e6c62a8821557720a9b2ea9617359b264f2f67c\", \"lessThan\": \"169410eba271afc9f0fb476d996795aa26770c6d\", \"versionType\": \"git\"}], \"programFiles\": [\"kernel/bpf/helpers.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.10\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.10\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.10.237\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.181\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.77\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.16\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.7.4\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.7.*\"}, {\"status\": \"unaffected\", \"version\": \"6.8\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"kernel/bpf/helpers.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/82f2df94dac1aa9b879e74d1f82ba1b631bdc612\"}, {\"url\": \"https://git.kernel.org/stable/c/3516f93cc63d956e1b290ae4b7bf2586074535a0\"}, {\"url\": \"https://git.kernel.org/stable/c/d6d6fe4bb105595118f12abeed4a7bdd450853f3\"}, {\"url\": \"https://git.kernel.org/stable/c/483cb92334cd7f1d5387dccc0ab5d595d27a669d\"}, {\"url\": \"https://git.kernel.org/stable/c/c7f1b6146f4a46d727c0d046284c28b6882c6304\"}, {\"url\": \"https://git.kernel.org/stable/c/169410eba271afc9f0fb476d996795aa26770c6d\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbpf: Check rcu_read_lock_trace_held() before calling bpf map helpers\\n\\nThese three bpf_map_{lookup,update,delete}_elem() helpers are also\\navailable for sleepable bpf program, so add the corresponding lock\\nassertion for sleepable bpf program, otherwise the following warning\\nwill be reported when a sleepable bpf program manipulates bpf map under\\ninterpreter mode (aka bpf_jit_enable=0):\\n\\n  WARNING: CPU: 3 PID: 4985 at kernel/bpf/helpers.c:40 ......\\n  CPU: 3 PID: 4985 Comm: test_progs Not tainted 6.6.0+ #2\\n  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996) ......\\n  RIP: 0010:bpf_map_lookup_elem+0x54/0x60\\n  ......\\n  Call Trace:\\n   \u003cTASK\u003e\\n   ? __warn+0xa5/0x240\\n   ? bpf_map_lookup_elem+0x54/0x60\\n   ? report_bug+0x1ba/0x1f0\\n   ? handle_bug+0x40/0x80\\n   ? exc_invalid_op+0x18/0x50\\n   ? asm_exc_invalid_op+0x1b/0x20\\n   ? __pfx_bpf_map_lookup_elem+0x10/0x10\\n   ? rcu_lockdep_current_cpu_online+0x65/0xb0\\n   ? rcu_is_watching+0x23/0x50\\n   ? bpf_map_lookup_elem+0x54/0x60\\n   ? __pfx_bpf_map_lookup_elem+0x10/0x10\\n   ___bpf_prog_run+0x513/0x3b70\\n   __bpf_prog_run32+0x9d/0xd0\\n   ? __bpf_prog_enter_sleepable_recur+0xad/0x120\\n   ? __bpf_prog_enter_sleepable_recur+0x3e/0x120\\n   bpf_trampoline_6442580665+0x4d/0x1000\\n   __x64_sys_getpgid+0x5/0x30\\n   ? do_syscall_64+0x36/0xb0\\n   entry_SYSCALL_64_after_hwframe+0x6e/0x76\\n   \u003c/TASK\u003e\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.237\", \"versionStartIncluding\": \"5.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.181\", \"versionStartIncluding\": \"5.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.77\", \"versionStartIncluding\": \"5.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.16\", \"versionStartIncluding\": \"5.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.7.4\", \"versionStartIncluding\": \"5.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.8\", \"versionStartIncluding\": \"5.10\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-01-05T10:16:44.783Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-52621\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-01-05T10:16:44.783Z\", \"dateReserved\": \"2024-03-06T09:52:12.090Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-03-26T17:19:23.208Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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.


Detection rules are retrieved from Rulezet.