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CVE-2024-56665 (GCVE-0-2024-56665)

Vulnerability from cvelistv5 – Published: 2024-12-27 15:06 – Updated: 2026-05-23 15:55
VLAI
Title
bpf,perf: Fix invalid prog_array access in perf_event_detach_bpf_prog
Summary
In the Linux kernel, the following vulnerability has been resolved: bpf,perf: Fix invalid prog_array access in perf_event_detach_bpf_prog Syzbot reported [1] crash that happens for following tracing scenario: - create tracepoint perf event with attr.inherit=1, attach it to the process and set bpf program to it - attached process forks -> chid creates inherited event the new child event shares the parent's bpf program and tp_event (hence prog_array) which is global for tracepoint - exit both process and its child -> release both events - first perf_event_detach_bpf_prog call will release tp_event->prog_array and second perf_event_detach_bpf_prog will crash, because tp_event->prog_array is NULL The fix makes sure the perf_event_detach_bpf_prog checks prog_array is valid before it tries to remove the bpf program from it. [1] https://lore.kernel.org/bpf/Z1MR6dCIKajNS6nU@krava/T/#m91dbf0688221ec7a7fc95e896a7ef9ff93b0b8ad
Severity
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 2025-10-01 19:59 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 7a5c653ede645693422e43cccaa3e8f905d21c74 , < 842e5af282453983586e2eae3c8eaf252de5f22f (git)
Affected: 21db2f35fa97e4a3447f2edeb7b2569a8bfdc83b , < c2b6b47662d5f2dfce92e5ffbdcac8229f321d9d (git)
Affected: 0ee288e69d033850bc87abe0f9cc3ada24763d7f , < dfb15ddf3b65e0df2129f9756d1b4fa78055cdb3 (git)
Affected: 0ee288e69d033850bc87abe0f9cc3ada24763d7f , < 978c4486cca5c7b9253d3ab98a88c8e769cb9bbd (git)
Affected: b4007d5fe38625b8a1b8edc0f385d86527651238 (git)
Affected: 585674b9d0d80bd7f428b1f88be13cf6d5d6f739 (git)
Affected: 6.1.115 , < 6.1.121 (semver)
Affected: 6.6.59 , < 6.6.67 (semver)
Affected: 5.15.170 , < 5.16 (semver)
Affected: 6.11.6 , < 6.12 (semver)
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Linux Linux Affected: 6.12
Unaffected: 0 , < 6.12 (semver)
Unaffected: 6.1.121 , ≤ 6.1.* (semver)
Unaffected: 6.6.67 , ≤ 6.6.* (semver)
Unaffected: 6.12.6 , ≤ 6.12.* (semver)
Unaffected: 6.13 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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[1] https://lore.kernel.org/bpf/Z1MR6dCIKajNS6nU@krava/T/#m91dbf0688221ec7a7fc95e896a7ef9ff93b0b8ad\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"kernel/trace/bpf_trace.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"7a5c653ede645693422e43cccaa3e8f905d21c74\",\"lessThan\":\"842e5af282453983586e2eae3c8eaf252de5f22f\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"21db2f35fa97e4a3447f2edeb7b2569a8bfdc83b\",\"lessThan\":\"c2b6b47662d5f2dfce92e5ffbdcac8229f321d9d\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"0ee288e69d033850bc87abe0f9cc3ada24763d7f\",\"lessThan\":\"dfb15ddf3b65e0df2129f9756d1b4fa78055cdb3\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"0ee288e69d033850bc87abe0f9cc3ada24763d7f\",\"lessThan\":\"978c4486cca5c7b9253d3ab98a88c8e769cb9bbd\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"b4007d5fe38625b8a1b8edc0f385d86527651238\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"585674b9d0d80bd7f428b1f88be13cf6d5d6f739\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"6.1.115\",\"lessThan\":\"6.1.121\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"6.6.59\",\"lessThan\":\"6.6.67\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"5.15.170\",\"lessThan\":\"5.16\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"6.11.6\",\"lessThan\":\"6.12\",\"versionType\":\"semver\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"kernel/trace/bpf_trace.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"6.12\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"6.12\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.121\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.67\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.6\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.13\",\"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:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2025-10-01T19:59:51.275305Z\",\"id\":\"CVE-2024-56665\",\"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\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.15.170\",\"versionEndExcluding\":\"5.16\",\"matchCriteriaId\":\"C7FE0726-C761-4349-9521-83EAB0A1FCB6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.1.115\",\"versionEndExcluding\":\"6.1.121\",\"matchCriteriaId\":\"5DAD94E3-C170-44EA-93AC-5712A955ED0C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.6.59\",\"versionEndExcluding\":\"6.6.67\",\"matchCriteriaId\":\"1CA5A1BF-E0D3-405F-8671-0923F72D88B8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.11.6\",\"versionEndExcluding\":\"6.12.6\",\"matchCriteriaId\":\"A23E2ECD-FEEE-4F72-A40D-756B9EC8B8DF\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.13:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"62567B3C-6CEE-46D0-BC2E-B3717FBF7D13\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.13:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"5A073481-106D-4B15-B4C7-FB0213B8E1D4\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/842e5af282453983586e2eae3c8eaf252de5f22f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/978c4486cca5c7b9253d3ab98a88c8e769cb9bbd\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/c2b6b47662d5f2dfce92e5ffbdcac8229f321d9d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/dfb15ddf3b65e0df2129f9756d1b4fa78055cdb3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T13:51:40+00:00",
      "cve": "CVE-2024-56665",
      "id": "CVE-2024-56665",
      "initial_release_date": "2024-12-27T00:00:00+00:00",
      "product_status:known_affected": "28",
      "product_status:known_not_affected": "170",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: bpf,perf: Fix invalid prog_array access in perf_event_detach_bpf_prog",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-56665.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 5.5, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-56665\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-10-01T19:59:51.275305Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"description\": \"CWE-noinfo Not enough information\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-10-01T15:45:31.524Z\"}}], \"cna\": {\"title\": \"bpf,perf: Fix invalid prog_array access in perf_event_detach_bpf_prog\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"7a5c653ede645693422e43cccaa3e8f905d21c74\", \"lessThan\": \"842e5af282453983586e2eae3c8eaf252de5f22f\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"21db2f35fa97e4a3447f2edeb7b2569a8bfdc83b\", \"lessThan\": \"c2b6b47662d5f2dfce92e5ffbdcac8229f321d9d\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"0ee288e69d033850bc87abe0f9cc3ada24763d7f\", \"lessThan\": \"dfb15ddf3b65e0df2129f9756d1b4fa78055cdb3\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"0ee288e69d033850bc87abe0f9cc3ada24763d7f\", \"lessThan\": \"978c4486cca5c7b9253d3ab98a88c8e769cb9bbd\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"b4007d5fe38625b8a1b8edc0f385d86527651238\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"585674b9d0d80bd7f428b1f88be13cf6d5d6f739\", \"versionType\": \"git\"}], \"programFiles\": [\"kernel/trace/bpf_trace.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.12\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"6.12\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"6.1.121\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.67\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12.6\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.12.*\"}, {\"status\": \"unaffected\", \"version\": \"6.13\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"kernel/trace/bpf_trace.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/842e5af282453983586e2eae3c8eaf252de5f22f\"}, {\"url\": \"https://git.kernel.org/stable/c/c2b6b47662d5f2dfce92e5ffbdcac8229f321d9d\"}, {\"url\": \"https://git.kernel.org/stable/c/dfb15ddf3b65e0df2129f9756d1b4fa78055cdb3\"}, {\"url\": \"https://git.kernel.org/stable/c/978c4486cca5c7b9253d3ab98a88c8e769cb9bbd\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbpf,perf: Fix invalid prog_array access in perf_event_detach_bpf_prog\\n\\nSyzbot reported [1] crash that happens for following tracing scenario:\\n\\n  - create tracepoint perf event with attr.inherit=1, attach it to the\\n    process and set bpf program to it\\n  - attached process forks -\u003e chid creates inherited event\\n\\n    the new child event shares the parent\u0027s bpf program and tp_event\\n    (hence prog_array) which is global for tracepoint\\n\\n  - exit both process and its child -\u003e release both events\\n  - first perf_event_detach_bpf_prog call will release tp_event-\u003eprog_array\\n    and second perf_event_detach_bpf_prog will crash, because\\n    tp_event-\u003eprog_array is NULL\\n\\nThe fix makes sure the perf_event_detach_bpf_prog checks prog_array\\nis valid before it tries to remove the bpf program from it.\\n\\n[1] https://lore.kernel.org/bpf/Z1MR6dCIKajNS6nU@krava/T/#m91dbf0688221ec7a7fc95e896a7ef9ff93b0b8ad\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.121\", \"versionStartIncluding\": \"6.1.115\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.67\", \"versionStartIncluding\": \"6.6.59\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12.6\", \"versionStartIncluding\": \"6.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.13\", \"versionStartIncluding\": \"6.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"5.15.170\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"6.11.6\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T13:01:12.270Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-56665\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-10-01T20:07:09.798Z\", \"dateReserved\": \"2024-12-27T15:00:39.844Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-12-27T15:06:27.205Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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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.


Detection rules are retrieved from Rulezet.